./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/egcd3-ll_valuebound2.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0345f207-eb94-43c0-b5d4-be7362f6a67e/bin/uautomizer-verify-BQ2R08f2Ya/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0345f207-eb94-43c0-b5d4-be7362f6a67e/bin/uautomizer-verify-BQ2R08f2Ya/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0345f207-eb94-43c0-b5d4-be7362f6a67e/bin/uautomizer-verify-BQ2R08f2Ya/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0345f207-eb94-43c0-b5d4-be7362f6a67e/bin/uautomizer-verify-BQ2R08f2Ya/config/AutomizerReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/egcd3-ll_valuebound2.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0345f207-eb94-43c0-b5d4-be7362f6a67e/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0345f207-eb94-43c0-b5d4-be7362f6a67e/bin/uautomizer-verify-BQ2R08f2Ya --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash bda512f5ab4e84c08e80fd02a1c07c8fba5ca60aa45d55edfde2cc268dd1288e --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-29 03:50:55,151 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-29 03:50:55,225 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0345f207-eb94-43c0-b5d4-be7362f6a67e/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-Overflow-32bit-Automizer_Default.epf [2023-11-29 03:50:55,231 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-29 03:50:55,232 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-29 03:50:55,263 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-29 03:50:55,264 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-29 03:50:55,265 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-29 03:50:55,266 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-29 03:50:55,266 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-29 03:50:55,267 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-29 03:50:55,267 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-29 03:50:55,268 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-29 03:50:55,269 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-29 03:50:55,269 INFO L153 SettingsManager]: * Use SBE=true [2023-11-29 03:50:55,270 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-29 03:50:55,271 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-29 03:50:55,271 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-29 03:50:55,272 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-29 03:50:55,272 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-29 03:50:55,273 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-29 03:50:55,274 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-29 03:50:55,274 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-29 03:50:55,275 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-29 03:50:55,275 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-29 03:50:55,276 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-29 03:50:55,276 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-29 03:50:55,277 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-29 03:50:55,277 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-29 03:50:55,278 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-29 03:50:55,278 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-29 03:50:55,279 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-29 03:50:55,279 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-29 03:50:55,279 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 03:50:55,280 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-29 03:50:55,280 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-29 03:50:55,280 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-29 03:50:55,280 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-29 03:50:55,281 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-29 03:50:55,281 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-29 03:50:55,281 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-29 03:50:55,282 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-29 03:50:55,282 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-29 03:50:55,282 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-29 03:50:55,282 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0345f207-eb94-43c0-b5d4-be7362f6a67e/bin/uautomizer-verify-BQ2R08f2Ya/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0345f207-eb94-43c0-b5d4-be7362f6a67e/bin/uautomizer-verify-BQ2R08f2Ya Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> bda512f5ab4e84c08e80fd02a1c07c8fba5ca60aa45d55edfde2cc268dd1288e [2023-11-29 03:50:55,546 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-29 03:50:55,573 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-29 03:50:55,576 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-29 03:50:55,577 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-29 03:50:55,577 INFO L274 PluginConnector]: CDTParser initialized [2023-11-29 03:50:55,579 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0345f207-eb94-43c0-b5d4-be7362f6a67e/bin/uautomizer-verify-BQ2R08f2Ya/../../sv-benchmarks/c/nla-digbench-scaling/egcd3-ll_valuebound2.c [2023-11-29 03:50:58,462 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-29 03:50:58,659 INFO L384 CDTParser]: Found 1 translation units. [2023-11-29 03:50:58,659 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0345f207-eb94-43c0-b5d4-be7362f6a67e/sv-benchmarks/c/nla-digbench-scaling/egcd3-ll_valuebound2.c [2023-11-29 03:50:58,666 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0345f207-eb94-43c0-b5d4-be7362f6a67e/bin/uautomizer-verify-BQ2R08f2Ya/data/159767a11/1582f4b19a4e491a8946f695d0a9d0ef/FLAGaf2763739 [2023-11-29 03:50:58,679 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0345f207-eb94-43c0-b5d4-be7362f6a67e/bin/uautomizer-verify-BQ2R08f2Ya/data/159767a11/1582f4b19a4e491a8946f695d0a9d0ef [2023-11-29 03:50:58,681 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-29 03:50:58,683 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-29 03:50:58,684 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-29 03:50:58,685 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-29 03:50:58,691 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-29 03:50:58,692 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 03:50:58" (1/1) ... [2023-11-29 03:50:58,693 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@719e53ae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:50:58, skipping insertion in model container [2023-11-29 03:50:58,693 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 03:50:58" (1/1) ... [2023-11-29 03:50:58,720 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-29 03:50:58,899 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 03:50:58,913 INFO L202 MainTranslator]: Completed pre-run [2023-11-29 03:50:58,939 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 03:50:58,955 INFO L206 MainTranslator]: Completed translation [2023-11-29 03:50:58,955 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:50:58 WrapperNode [2023-11-29 03:50:58,956 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-29 03:50:58,957 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-29 03:50:58,957 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-29 03:50:58,957 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-29 03:50:58,965 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:50:58" (1/1) ... [2023-11-29 03:50:58,973 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:50:58" (1/1) ... [2023-11-29 03:50:59,000 INFO L138 Inliner]: procedures = 14, calls = 17, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 139 [2023-11-29 03:50:59,001 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-29 03:50:59,002 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-29 03:50:59,002 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-29 03:50:59,002 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-29 03:50:59,015 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:50:58" (1/1) ... [2023-11-29 03:50:59,015 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:50:58" (1/1) ... [2023-11-29 03:50:59,018 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:50:58" (1/1) ... [2023-11-29 03:50:59,031 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2023-11-29 03:50:59,032 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:50:58" (1/1) ... [2023-11-29 03:50:59,032 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:50:58" (1/1) ... [2023-11-29 03:50:59,036 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:50:58" (1/1) ... [2023-11-29 03:50:59,040 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:50:58" (1/1) ... [2023-11-29 03:50:59,042 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:50:58" (1/1) ... [2023-11-29 03:50:59,043 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:50:58" (1/1) ... [2023-11-29 03:50:59,046 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-29 03:50:59,047 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-29 03:50:59,048 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-29 03:50:59,048 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-29 03:50:59,049 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:50:58" (1/1) ... [2023-11-29 03:50:59,056 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 03:50:59,072 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0345f207-eb94-43c0-b5d4-be7362f6a67e/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:50:59,088 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0345f207-eb94-43c0-b5d4-be7362f6a67e/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-29 03:50:59,092 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0345f207-eb94-43c0-b5d4-be7362f6a67e/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-29 03:50:59,126 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-29 03:50:59,127 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-29 03:50:59,127 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-29 03:50:59,127 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-11-29 03:50:59,127 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-29 03:50:59,127 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-29 03:50:59,127 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-11-29 03:50:59,128 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-11-29 03:50:59,193 INFO L241 CfgBuilder]: Building ICFG [2023-11-29 03:50:59,195 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-29 03:50:59,545 INFO L282 CfgBuilder]: Performing block encoding [2023-11-29 03:50:59,578 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-29 03:50:59,579 INFO L309 CfgBuilder]: Removed 3 assume(true) statements. [2023-11-29 03:50:59,579 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 03:50:59 BoogieIcfgContainer [2023-11-29 03:50:59,580 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-29 03:50:59,583 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-29 03:50:59,583 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-29 03:50:59,586 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-29 03:50:59,586 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.11 03:50:58" (1/3) ... [2023-11-29 03:50:59,587 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1eb17ffa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 03:50:59, skipping insertion in model container [2023-11-29 03:50:59,587 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:50:58" (2/3) ... [2023-11-29 03:50:59,588 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1eb17ffa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 03:50:59, skipping insertion in model container [2023-11-29 03:50:59,588 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 03:50:59" (3/3) ... [2023-11-29 03:50:59,589 INFO L112 eAbstractionObserver]: Analyzing ICFG egcd3-ll_valuebound2.c [2023-11-29 03:50:59,606 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-29 03:50:59,606 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 50 error locations. [2023-11-29 03:50:59,650 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-29 03:50:59,655 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@51748529, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-29 03:50:59,656 INFO L358 AbstractCegarLoop]: Starting to check reachability of 50 error locations. [2023-11-29 03:50:59,660 INFO L276 IsEmpty]: Start isEmpty. Operand has 129 states, 67 states have (on average 1.9104477611940298) internal successors, (128), 117 states have internal predecessors, (128), 9 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2023-11-29 03:50:59,667 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2023-11-29 03:50:59,668 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:50:59,668 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:50:59,669 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr36ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2023-11-29 03:50:59,673 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:50:59,674 INFO L85 PathProgramCache]: Analyzing trace with hash 1746693785, now seen corresponding path program 1 times [2023-11-29 03:50:59,681 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:50:59,682 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1380369733] [2023-11-29 03:50:59,682 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:50:59,683 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:50:59,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:50:59,816 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:50:59,816 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1380369733] [2023-11-29 03:50:59,817 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2023-11-29 03:50:59,817 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [726254814] [2023-11-29 03:50:59,818 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:50:59,818 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:50:59,818 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0345f207-eb94-43c0-b5d4-be7362f6a67e/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:50:59,820 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0345f207-eb94-43c0-b5d4-be7362f6a67e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:50:59,828 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0345f207-eb94-43c0-b5d4-be7362f6a67e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-29 03:50:59,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:50:59,904 INFO L262 TraceCheckSpWp]: Trace formula consists of 75 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-29 03:50:59,910 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:50:59,941 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2023-11-29 03:50:59,941 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 03:50:59,942 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [726254814] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:50:59,942 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:50:59,942 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 03:50:59,945 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1843328657] [2023-11-29 03:50:59,946 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:50:59,952 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-29 03:50:59,952 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:50:59,987 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-29 03:50:59,987 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-29 03:50:59,990 INFO L87 Difference]: Start difference. First operand has 129 states, 67 states have (on average 1.9104477611940298) internal successors, (128), 117 states have internal predecessors, (128), 9 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) Second operand has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-29 03:51:00,032 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:51:00,033 INFO L93 Difference]: Finished difference Result 256 states and 298 transitions. [2023-11-29 03:51:00,034 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-29 03:51:00,035 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) Word has length 25 [2023-11-29 03:51:00,036 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:51:00,045 INFO L225 Difference]: With dead ends: 256 [2023-11-29 03:51:00,045 INFO L226 Difference]: Without dead ends: 126 [2023-11-29 03:51:00,050 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-29 03:51:00,054 INFO L413 NwaCegarLoop]: 136 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 136 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 03:51:00,056 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 136 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 03:51:00,072 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 126 states. [2023-11-29 03:51:00,100 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 126 to 126. [2023-11-29 03:51:00,102 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 126 states, 66 states have (on average 1.7878787878787878) internal successors, (118), 115 states have internal predecessors, (118), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2023-11-29 03:51:00,105 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 126 states to 126 states and 134 transitions. [2023-11-29 03:51:00,107 INFO L78 Accepts]: Start accepts. Automaton has 126 states and 134 transitions. Word has length 25 [2023-11-29 03:51:00,107 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:51:00,108 INFO L495 AbstractCegarLoop]: Abstraction has 126 states and 134 transitions. [2023-11-29 03:51:00,108 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-29 03:51:00,108 INFO L276 IsEmpty]: Start isEmpty. Operand 126 states and 134 transitions. [2023-11-29 03:51:00,110 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2023-11-29 03:51:00,110 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:51:00,110 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:51:00,117 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0345f207-eb94-43c0-b5d4-be7362f6a67e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-29 03:51:00,311 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0345f207-eb94-43c0-b5d4-be7362f6a67e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:51:00,311 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr36ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2023-11-29 03:51:00,312 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:51:00,312 INFO L85 PathProgramCache]: Analyzing trace with hash 1247169459, now seen corresponding path program 1 times [2023-11-29 03:51:00,323 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:51:00,324 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1907234194] [2023-11-29 03:51:00,324 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:51:00,324 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:51:00,352 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 03:51:00,352 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1970832853] [2023-11-29 03:51:00,352 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:51:00,353 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:51:00,353 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0345f207-eb94-43c0-b5d4-be7362f6a67e/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:51:00,354 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0345f207-eb94-43c0-b5d4-be7362f6a67e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:51:00,379 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0345f207-eb94-43c0-b5d4-be7362f6a67e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-29 03:51:00,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:51:00,438 INFO L262 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-29 03:51:00,441 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:51:00,518 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2023-11-29 03:51:00,518 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 03:51:00,519 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:51:00,519 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1907234194] [2023-11-29 03:51:00,519 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 03:51:00,519 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1970832853] [2023-11-29 03:51:00,520 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1970832853] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:51:00,520 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:51:00,520 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-29 03:51:00,520 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2031666680] [2023-11-29 03:51:00,521 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:51:00,521 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 03:51:00,522 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:51:00,523 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 03:51:00,523 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-29 03:51:00,523 INFO L87 Difference]: Start difference. First operand 126 states and 134 transitions. Second operand has 6 states, 6 states have (on average 2.0) internal successors, (12), 5 states have internal predecessors, (12), 1 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) [2023-11-29 03:51:00,812 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:51:00,812 INFO L93 Difference]: Finished difference Result 221 states and 235 transitions. [2023-11-29 03:51:00,816 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-29 03:51:00,816 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 2.0) internal successors, (12), 5 states have internal predecessors, (12), 1 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) Word has length 26 [2023-11-29 03:51:00,817 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:51:00,819 INFO L225 Difference]: With dead ends: 221 [2023-11-29 03:51:00,820 INFO L226 Difference]: Without dead ends: 193 [2023-11-29 03:51:00,820 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2023-11-29 03:51:00,822 INFO L413 NwaCegarLoop]: 80 mSDtfsCounter, 240 mSDsluCounter, 240 mSDsCounter, 0 mSdLazyCounter, 229 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 244 SdHoareTripleChecker+Valid, 320 SdHoareTripleChecker+Invalid, 237 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 229 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-29 03:51:00,823 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [244 Valid, 320 Invalid, 237 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 229 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-29 03:51:00,825 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 193 states. [2023-11-29 03:51:00,841 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 193 to 128. [2023-11-29 03:51:00,842 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 128 states, 68 states have (on average 1.7647058823529411) internal successors, (120), 117 states have internal predecessors, (120), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2023-11-29 03:51:00,844 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 128 states to 128 states and 136 transitions. [2023-11-29 03:51:00,844 INFO L78 Accepts]: Start accepts. Automaton has 128 states and 136 transitions. Word has length 26 [2023-11-29 03:51:00,844 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:51:00,845 INFO L495 AbstractCegarLoop]: Abstraction has 128 states and 136 transitions. [2023-11-29 03:51:00,845 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 2.0) internal successors, (12), 5 states have internal predecessors, (12), 1 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) [2023-11-29 03:51:00,845 INFO L276 IsEmpty]: Start isEmpty. Operand 128 states and 136 transitions. [2023-11-29 03:51:00,846 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2023-11-29 03:51:00,846 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:51:00,847 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:51:00,853 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0345f207-eb94-43c0-b5d4-be7362f6a67e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2023-11-29 03:51:01,050 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0345f207-eb94-43c0-b5d4-be7362f6a67e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2023-11-29 03:51:01,051 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr28ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2023-11-29 03:51:01,051 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:51:01,051 INFO L85 PathProgramCache]: Analyzing trace with hash -1337999012, now seen corresponding path program 1 times [2023-11-29 03:51:01,051 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:51:01,052 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [880190526] [2023-11-29 03:51:01,052 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:51:01,052 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:51:01,073 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 03:51:01,074 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1451064959] [2023-11-29 03:51:01,074 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:51:01,074 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:51:01,075 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0345f207-eb94-43c0-b5d4-be7362f6a67e/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:51:01,076 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0345f207-eb94-43c0-b5d4-be7362f6a67e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:51:01,077 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0345f207-eb94-43c0-b5d4-be7362f6a67e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-29 03:51:01,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:51:01,129 INFO L262 TraceCheckSpWp]: Trace formula consists of 90 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-29 03:51:01,132 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:51:01,151 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2023-11-29 03:51:01,152 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 03:51:01,152 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:51:01,152 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [880190526] [2023-11-29 03:51:01,152 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 03:51:01,152 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1451064959] [2023-11-29 03:51:01,153 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1451064959] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:51:01,153 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:51:01,153 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 03:51:01,153 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1095620095] [2023-11-29 03:51:01,153 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:51:01,154 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 03:51:01,154 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:51:01,154 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 03:51:01,155 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 03:51:01,155 INFO L87 Difference]: Start difference. First operand 128 states and 136 transitions. Second operand has 3 states, 2 states have (on average 6.0) internal successors, (12), 3 states have internal predecessors, (12), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2023-11-29 03:51:01,235 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:51:01,235 INFO L93 Difference]: Finished difference Result 201 states and 215 transitions. [2023-11-29 03:51:01,235 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 03:51:01,236 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 6.0) internal successors, (12), 3 states have internal predecessors, (12), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 29 [2023-11-29 03:51:01,236 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:51:01,238 INFO L225 Difference]: With dead ends: 201 [2023-11-29 03:51:01,239 INFO L226 Difference]: Without dead ends: 197 [2023-11-29 03:51:01,239 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 03:51:01,241 INFO L413 NwaCegarLoop]: 120 mSDtfsCounter, 63 mSDsluCounter, 100 mSDsCounter, 0 mSdLazyCounter, 47 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 67 SdHoareTripleChecker+Valid, 220 SdHoareTripleChecker+Invalid, 50 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 47 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 03:51:01,242 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [67 Valid, 220 Invalid, 50 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 47 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 03:51:01,243 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 197 states. [2023-11-29 03:51:01,260 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 197 to 167. [2023-11-29 03:51:01,261 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 167 states, 103 states have (on average 1.7766990291262137) internal successors, (183), 152 states have internal predecessors, (183), 12 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2023-11-29 03:51:01,263 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 167 states to 167 states and 207 transitions. [2023-11-29 03:51:01,263 INFO L78 Accepts]: Start accepts. Automaton has 167 states and 207 transitions. Word has length 29 [2023-11-29 03:51:01,263 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:51:01,264 INFO L495 AbstractCegarLoop]: Abstraction has 167 states and 207 transitions. [2023-11-29 03:51:01,264 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 6.0) internal successors, (12), 3 states have internal predecessors, (12), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2023-11-29 03:51:01,264 INFO L276 IsEmpty]: Start isEmpty. Operand 167 states and 207 transitions. [2023-11-29 03:51:01,265 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2023-11-29 03:51:01,265 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:51:01,266 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:51:01,271 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0345f207-eb94-43c0-b5d4-be7362f6a67e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-11-29 03:51:01,466 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0345f207-eb94-43c0-b5d4-be7362f6a67e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2023-11-29 03:51:01,467 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2023-11-29 03:51:01,467 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:51:01,467 INFO L85 PathProgramCache]: Analyzing trace with hash -1337999394, now seen corresponding path program 1 times [2023-11-29 03:51:01,467 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:51:01,468 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1921765589] [2023-11-29 03:51:01,468 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:51:01,468 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:51:01,487 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 03:51:01,487 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [868468938] [2023-11-29 03:51:01,488 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:51:01,488 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:51:01,488 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0345f207-eb94-43c0-b5d4-be7362f6a67e/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:51:01,489 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0345f207-eb94-43c0-b5d4-be7362f6a67e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:51:01,490 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0345f207-eb94-43c0-b5d4-be7362f6a67e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-11-29 03:51:01,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:51:01,539 INFO L262 TraceCheckSpWp]: Trace formula consists of 87 conjuncts, 16 conjunts are in the unsatisfiable core [2023-11-29 03:51:01,541 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:51:01,729 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-11-29 03:51:01,729 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 03:51:02,098 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2023-11-29 03:51:02,098 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:51:02,098 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1921765589] [2023-11-29 03:51:02,099 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 03:51:02,099 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [868468938] [2023-11-29 03:51:02,099 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [868468938] provided 1 perfect and 1 imperfect interpolant sequences [2023-11-29 03:51:02,099 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-29 03:51:02,100 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [8] total 13 [2023-11-29 03:51:02,100 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1967709903] [2023-11-29 03:51:02,100 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:51:02,101 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-29 03:51:02,101 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:51:02,102 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-29 03:51:02,102 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=139, Unknown=0, NotChecked=0, Total=182 [2023-11-29 03:51:02,102 INFO L87 Difference]: Start difference. First operand 167 states and 207 transitions. Second operand has 8 states, 7 states have (on average 2.142857142857143) internal successors, (15), 7 states have internal predecessors, (15), 1 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) [2023-11-29 03:51:02,478 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:51:02,478 INFO L93 Difference]: Finished difference Result 181 states and 222 transitions. [2023-11-29 03:51:02,479 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-29 03:51:02,479 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 2.142857142857143) internal successors, (15), 7 states have internal predecessors, (15), 1 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) Word has length 29 [2023-11-29 03:51:02,480 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:51:02,481 INFO L225 Difference]: With dead ends: 181 [2023-11-29 03:51:02,482 INFO L226 Difference]: Without dead ends: 180 [2023-11-29 03:51:02,482 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=60, Invalid=180, Unknown=0, NotChecked=0, Total=240 [2023-11-29 03:51:02,484 INFO L413 NwaCegarLoop]: 77 mSDtfsCounter, 286 mSDsluCounter, 146 mSDsCounter, 0 mSdLazyCounter, 180 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 287 SdHoareTripleChecker+Valid, 223 SdHoareTripleChecker+Invalid, 200 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 180 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-29 03:51:02,484 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [287 Valid, 223 Invalid, 200 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 180 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-29 03:51:02,486 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 180 states. [2023-11-29 03:51:02,506 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 180 to 171. [2023-11-29 03:51:02,507 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 171 states, 107 states have (on average 1.7476635514018692) internal successors, (187), 156 states have internal predecessors, (187), 12 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2023-11-29 03:51:02,509 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 171 states to 171 states and 211 transitions. [2023-11-29 03:51:02,509 INFO L78 Accepts]: Start accepts. Automaton has 171 states and 211 transitions. Word has length 29 [2023-11-29 03:51:02,509 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:51:02,509 INFO L495 AbstractCegarLoop]: Abstraction has 171 states and 211 transitions. [2023-11-29 03:51:02,510 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 2.142857142857143) internal successors, (15), 7 states have internal predecessors, (15), 1 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) [2023-11-29 03:51:02,510 INFO L276 IsEmpty]: Start isEmpty. Operand 171 states and 211 transitions. [2023-11-29 03:51:02,511 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2023-11-29 03:51:02,511 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:51:02,511 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:51:02,517 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0345f207-eb94-43c0-b5d4-be7362f6a67e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2023-11-29 03:51:02,717 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0345f207-eb94-43c0-b5d4-be7362f6a67e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:51:02,717 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2023-11-29 03:51:02,718 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:51:02,718 INFO L85 PathProgramCache]: Analyzing trace with hash 1471691825, now seen corresponding path program 1 times [2023-11-29 03:51:02,718 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:51:02,718 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [735179527] [2023-11-29 03:51:02,718 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:51:02,719 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:51:02,735 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 03:51:02,735 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [965701761] [2023-11-29 03:51:02,735 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:51:02,736 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:51:02,736 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0345f207-eb94-43c0-b5d4-be7362f6a67e/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:51:02,737 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0345f207-eb94-43c0-b5d4-be7362f6a67e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:51:02,740 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0345f207-eb94-43c0-b5d4-be7362f6a67e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-11-29 03:51:02,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:51:02,795 INFO L262 TraceCheckSpWp]: Trace formula consists of 88 conjuncts, 16 conjunts are in the unsatisfiable core [2023-11-29 03:51:02,797 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:51:02,968 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-11-29 03:51:02,968 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 03:51:03,314 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2023-11-29 03:51:03,314 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:51:03,314 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [735179527] [2023-11-29 03:51:03,314 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 03:51:03,314 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [965701761] [2023-11-29 03:51:03,315 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [965701761] provided 1 perfect and 1 imperfect interpolant sequences [2023-11-29 03:51:03,315 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-29 03:51:03,315 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [8] total 13 [2023-11-29 03:51:03,315 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [282256077] [2023-11-29 03:51:03,315 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:51:03,316 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-29 03:51:03,316 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:51:03,316 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-29 03:51:03,317 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=139, Unknown=0, NotChecked=0, Total=182 [2023-11-29 03:51:03,317 INFO L87 Difference]: Start difference. First operand 171 states and 211 transitions. Second operand has 8 states, 7 states have (on average 2.2857142857142856) internal successors, (16), 7 states have internal predecessors, (16), 1 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) [2023-11-29 03:51:03,681 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:51:03,682 INFO L93 Difference]: Finished difference Result 182 states and 222 transitions. [2023-11-29 03:51:03,682 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-29 03:51:03,682 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 2.2857142857142856) internal successors, (16), 7 states have internal predecessors, (16), 1 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) Word has length 30 [2023-11-29 03:51:03,683 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:51:03,685 INFO L225 Difference]: With dead ends: 182 [2023-11-29 03:51:03,685 INFO L226 Difference]: Without dead ends: 181 [2023-11-29 03:51:03,685 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=60, Invalid=180, Unknown=0, NotChecked=0, Total=240 [2023-11-29 03:51:03,686 INFO L413 NwaCegarLoop]: 77 mSDtfsCounter, 203 mSDsluCounter, 180 mSDsCounter, 0 mSdLazyCounter, 209 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 204 SdHoareTripleChecker+Valid, 257 SdHoareTripleChecker+Invalid, 224 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 209 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-29 03:51:03,687 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [204 Valid, 257 Invalid, 224 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 209 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-29 03:51:03,688 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 181 states. [2023-11-29 03:51:03,710 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 181 to 172. [2023-11-29 03:51:03,710 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 172 states, 108 states have (on average 1.7314814814814814) internal successors, (187), 157 states have internal predecessors, (187), 12 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2023-11-29 03:51:03,712 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 172 states to 172 states and 211 transitions. [2023-11-29 03:51:03,713 INFO L78 Accepts]: Start accepts. Automaton has 172 states and 211 transitions. Word has length 30 [2023-11-29 03:51:03,713 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:51:03,713 INFO L495 AbstractCegarLoop]: Abstraction has 172 states and 211 transitions. [2023-11-29 03:51:03,713 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 2.2857142857142856) internal successors, (16), 7 states have internal predecessors, (16), 1 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) [2023-11-29 03:51:03,713 INFO L276 IsEmpty]: Start isEmpty. Operand 172 states and 211 transitions. [2023-11-29 03:51:03,714 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2023-11-29 03:51:03,715 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:51:03,715 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:51:03,721 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0345f207-eb94-43c0-b5d4-be7362f6a67e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2023-11-29 03:51:03,916 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0345f207-eb94-43c0-b5d4-be7362f6a67e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:51:03,916 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr30ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2023-11-29 03:51:03,917 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:51:03,917 INFO L85 PathProgramCache]: Analyzing trace with hash -1621824194, now seen corresponding path program 1 times [2023-11-29 03:51:03,917 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:51:03,917 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1191715948] [2023-11-29 03:51:03,917 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:51:03,917 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:51:03,933 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 03:51:03,933 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2045953114] [2023-11-29 03:51:03,933 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:51:03,933 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:51:03,933 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0345f207-eb94-43c0-b5d4-be7362f6a67e/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:51:03,935 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0345f207-eb94-43c0-b5d4-be7362f6a67e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:51:03,941 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0345f207-eb94-43c0-b5d4-be7362f6a67e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-11-29 03:51:03,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:51:03,993 INFO L262 TraceCheckSpWp]: Trace formula consists of 92 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-29 03:51:03,995 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:51:04,028 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2023-11-29 03:51:04,028 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 03:51:04,029 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:51:04,029 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1191715948] [2023-11-29 03:51:04,029 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 03:51:04,029 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2045953114] [2023-11-29 03:51:04,029 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2045953114] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:51:04,029 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:51:04,029 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-29 03:51:04,030 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1393265709] [2023-11-29 03:51:04,030 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:51:04,030 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 03:51:04,030 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:51:04,031 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 03:51:04,031 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-29 03:51:04,031 INFO L87 Difference]: Start difference. First operand 172 states and 211 transitions. Second operand has 5 states, 4 states have (on average 3.5) internal successors, (14), 5 states have internal predecessors, (14), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2023-11-29 03:51:04,266 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:51:04,266 INFO L93 Difference]: Finished difference Result 200 states and 215 transitions. [2023-11-29 03:51:04,267 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-29 03:51:04,267 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 3.5) internal successors, (14), 5 states have internal predecessors, (14), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 31 [2023-11-29 03:51:04,267 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:51:04,269 INFO L225 Difference]: With dead ends: 200 [2023-11-29 03:51:04,269 INFO L226 Difference]: Without dead ends: 199 [2023-11-29 03:51:04,269 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-29 03:51:04,270 INFO L413 NwaCegarLoop]: 121 mSDtfsCounter, 58 mSDsluCounter, 292 mSDsCounter, 0 mSdLazyCounter, 122 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 62 SdHoareTripleChecker+Valid, 413 SdHoareTripleChecker+Invalid, 122 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 122 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-29 03:51:04,271 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [62 Valid, 413 Invalid, 122 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 122 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-29 03:51:04,272 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 199 states. [2023-11-29 03:51:04,290 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 199 to 173. [2023-11-29 03:51:04,290 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 173 states, 109 states have (on average 1.724770642201835) internal successors, (188), 158 states have internal predecessors, (188), 12 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2023-11-29 03:51:04,292 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 173 states to 173 states and 212 transitions. [2023-11-29 03:51:04,292 INFO L78 Accepts]: Start accepts. Automaton has 173 states and 212 transitions. Word has length 31 [2023-11-29 03:51:04,292 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:51:04,293 INFO L495 AbstractCegarLoop]: Abstraction has 173 states and 212 transitions. [2023-11-29 03:51:04,293 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 3.5) internal successors, (14), 5 states have internal predecessors, (14), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2023-11-29 03:51:04,293 INFO L276 IsEmpty]: Start isEmpty. Operand 173 states and 212 transitions. [2023-11-29 03:51:04,294 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2023-11-29 03:51:04,294 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:51:04,294 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:51:04,300 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0345f207-eb94-43c0-b5d4-be7362f6a67e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2023-11-29 03:51:04,496 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0345f207-eb94-43c0-b5d4-be7362f6a67e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:51:04,496 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2023-11-29 03:51:04,496 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:51:04,497 INFO L85 PathProgramCache]: Analyzing trace with hash -1622193600, now seen corresponding path program 1 times [2023-11-29 03:51:04,497 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:51:04,497 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [222259713] [2023-11-29 03:51:04,497 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:51:04,497 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:51:04,507 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 03:51:04,508 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [737572956] [2023-11-29 03:51:04,508 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:51:04,508 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:51:04,508 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0345f207-eb94-43c0-b5d4-be7362f6a67e/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:51:04,509 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0345f207-eb94-43c0-b5d4-be7362f6a67e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:51:04,510 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0345f207-eb94-43c0-b5d4-be7362f6a67e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-11-29 03:51:04,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:51:04,564 INFO L262 TraceCheckSpWp]: Trace formula consists of 89 conjuncts, 13 conjunts are in the unsatisfiable core [2023-11-29 03:51:04,566 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:51:04,671 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2023-11-29 03:51:04,671 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 03:51:04,671 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:51:04,672 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [222259713] [2023-11-29 03:51:04,672 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 03:51:04,672 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [737572956] [2023-11-29 03:51:04,672 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [737572956] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:51:04,672 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:51:04,672 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-29 03:51:04,673 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1161197956] [2023-11-29 03:51:04,673 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:51:04,673 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-29 03:51:04,673 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:51:04,674 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-29 03:51:04,674 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2023-11-29 03:51:04,675 INFO L87 Difference]: Start difference. First operand 173 states and 212 transitions. Second operand has 8 states, 7 states have (on average 2.4285714285714284) internal successors, (17), 7 states have internal predecessors, (17), 1 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) [2023-11-29 03:51:05,192 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:51:05,192 INFO L93 Difference]: Finished difference Result 253 states and 275 transitions. [2023-11-29 03:51:05,192 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-29 03:51:05,193 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 2.4285714285714284) internal successors, (17), 7 states have internal predecessors, (17), 1 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) Word has length 31 [2023-11-29 03:51:05,193 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:51:05,195 INFO L225 Difference]: With dead ends: 253 [2023-11-29 03:51:05,195 INFO L226 Difference]: Without dead ends: 252 [2023-11-29 03:51:05,196 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=42, Invalid=114, Unknown=0, NotChecked=0, Total=156 [2023-11-29 03:51:05,197 INFO L413 NwaCegarLoop]: 70 mSDtfsCounter, 435 mSDsluCounter, 339 mSDsCounter, 0 mSdLazyCounter, 479 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 439 SdHoareTripleChecker+Valid, 409 SdHoareTripleChecker+Invalid, 503 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 479 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-29 03:51:05,197 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [439 Valid, 409 Invalid, 503 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 479 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-29 03:51:05,198 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 252 states. [2023-11-29 03:51:05,214 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 252 to 173. [2023-11-29 03:51:05,215 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 173 states, 109 states have (on average 1.7155963302752293) internal successors, (187), 158 states have internal predecessors, (187), 12 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2023-11-29 03:51:05,217 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 173 states to 173 states and 211 transitions. [2023-11-29 03:51:05,217 INFO L78 Accepts]: Start accepts. Automaton has 173 states and 211 transitions. Word has length 31 [2023-11-29 03:51:05,217 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:51:05,217 INFO L495 AbstractCegarLoop]: Abstraction has 173 states and 211 transitions. [2023-11-29 03:51:05,218 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 2.4285714285714284) internal successors, (17), 7 states have internal predecessors, (17), 1 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) [2023-11-29 03:51:05,218 INFO L276 IsEmpty]: Start isEmpty. Operand 173 states and 211 transitions. [2023-11-29 03:51:05,219 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2023-11-29 03:51:05,219 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:51:05,219 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:51:05,226 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0345f207-eb94-43c0-b5d4-be7362f6a67e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2023-11-29 03:51:05,420 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0345f207-eb94-43c0-b5d4-be7362f6a67e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:51:05,421 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr31ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2023-11-29 03:51:05,421 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:51:05,421 INFO L85 PathProgramCache]: Analyzing trace with hash 1263057693, now seen corresponding path program 1 times [2023-11-29 03:51:05,421 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:51:05,421 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1775653985] [2023-11-29 03:51:05,421 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:51:05,421 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:51:05,437 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 03:51:05,437 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1494277856] [2023-11-29 03:51:05,438 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:51:05,438 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:51:05,438 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0345f207-eb94-43c0-b5d4-be7362f6a67e/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:51:05,439 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0345f207-eb94-43c0-b5d4-be7362f6a67e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:51:05,442 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0345f207-eb94-43c0-b5d4-be7362f6a67e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2023-11-29 03:51:05,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:51:05,493 INFO L262 TraceCheckSpWp]: Trace formula consists of 93 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-29 03:51:05,495 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:51:05,549 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2023-11-29 03:51:05,549 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 03:51:05,549 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:51:05,549 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1775653985] [2023-11-29 03:51:05,550 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 03:51:05,550 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1494277856] [2023-11-29 03:51:05,550 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1494277856] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:51:05,550 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:51:05,550 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 03:51:05,551 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [237561389] [2023-11-29 03:51:05,551 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:51:05,551 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 03:51:05,552 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:51:05,552 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 03:51:05,552 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-29 03:51:05,553 INFO L87 Difference]: Start difference. First operand 173 states and 211 transitions. Second operand has 4 states, 3 states have (on average 5.0) internal successors, (15), 4 states have internal predecessors, (15), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2023-11-29 03:51:05,711 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:51:05,711 INFO L93 Difference]: Finished difference Result 198 states and 213 transitions. [2023-11-29 03:51:05,712 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 03:51:05,712 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 5.0) internal successors, (15), 4 states have internal predecessors, (15), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 32 [2023-11-29 03:51:05,712 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:51:05,714 INFO L225 Difference]: With dead ends: 198 [2023-11-29 03:51:05,714 INFO L226 Difference]: Without dead ends: 197 [2023-11-29 03:51:05,714 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-29 03:51:05,715 INFO L413 NwaCegarLoop]: 115 mSDtfsCounter, 58 mSDsluCounter, 173 mSDsCounter, 0 mSdLazyCounter, 113 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 62 SdHoareTripleChecker+Valid, 288 SdHoareTripleChecker+Invalid, 114 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 113 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 03:51:05,716 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [62 Valid, 288 Invalid, 114 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 113 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 03:51:05,717 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 197 states. [2023-11-29 03:51:05,734 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 197 to 174. [2023-11-29 03:51:05,735 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 174 states, 110 states have (on average 1.709090909090909) internal successors, (188), 159 states have internal predecessors, (188), 12 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2023-11-29 03:51:05,737 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 174 states to 174 states and 212 transitions. [2023-11-29 03:51:05,737 INFO L78 Accepts]: Start accepts. Automaton has 174 states and 212 transitions. Word has length 32 [2023-11-29 03:51:05,737 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:51:05,737 INFO L495 AbstractCegarLoop]: Abstraction has 174 states and 212 transitions. [2023-11-29 03:51:05,737 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 5.0) internal successors, (15), 4 states have internal predecessors, (15), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2023-11-29 03:51:05,737 INFO L276 IsEmpty]: Start isEmpty. Operand 174 states and 212 transitions. [2023-11-29 03:51:05,738 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2023-11-29 03:51:05,739 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:51:05,739 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:51:05,745 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0345f207-eb94-43c0-b5d4-be7362f6a67e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2023-11-29 03:51:05,944 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0345f207-eb94-43c0-b5d4-be7362f6a67e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:51:05,945 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2023-11-29 03:51:05,945 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:51:05,946 INFO L85 PathProgramCache]: Analyzing trace with hash 1251606035, now seen corresponding path program 1 times [2023-11-29 03:51:05,946 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:51:05,946 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1150735211] [2023-11-29 03:51:05,946 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:51:05,946 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:51:05,959 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 03:51:05,959 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2130391892] [2023-11-29 03:51:05,959 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:51:05,959 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:51:05,959 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0345f207-eb94-43c0-b5d4-be7362f6a67e/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:51:05,960 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0345f207-eb94-43c0-b5d4-be7362f6a67e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:51:05,965 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0345f207-eb94-43c0-b5d4-be7362f6a67e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2023-11-29 03:51:06,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:51:06,016 INFO L262 TraceCheckSpWp]: Trace formula consists of 90 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-29 03:51:06,017 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:51:06,130 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2023-11-29 03:51:06,130 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 03:51:06,374 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2023-11-29 03:51:06,375 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:51:06,375 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1150735211] [2023-11-29 03:51:06,375 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 03:51:06,375 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2130391892] [2023-11-29 03:51:06,375 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2130391892] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 03:51:06,375 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 03:51:06,375 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2023-11-29 03:51:06,376 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [392190219] [2023-11-29 03:51:06,376 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 03:51:06,376 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-29 03:51:06,376 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:51:06,377 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-29 03:51:06,377 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2023-11-29 03:51:06,377 INFO L87 Difference]: Start difference. First operand 174 states and 212 transitions. Second operand has 9 states, 8 states have (on average 3.875) internal successors, (31), 9 states have internal predecessors, (31), 3 states have call successors, (7), 1 states have call predecessors, (7), 2 states have return successors, (8), 2 states have call predecessors, (8), 3 states have call successors, (8) [2023-11-29 03:51:06,645 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:51:06,645 INFO L93 Difference]: Finished difference Result 200 states and 217 transitions. [2023-11-29 03:51:06,645 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-29 03:51:06,646 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.875) internal successors, (31), 9 states have internal predecessors, (31), 3 states have call successors, (7), 1 states have call predecessors, (7), 2 states have return successors, (8), 2 states have call predecessors, (8), 3 states have call successors, (8) Word has length 32 [2023-11-29 03:51:06,646 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:51:06,648 INFO L225 Difference]: With dead ends: 200 [2023-11-29 03:51:06,648 INFO L226 Difference]: Without dead ends: 199 [2023-11-29 03:51:06,648 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 55 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=32, Invalid=78, Unknown=0, NotChecked=0, Total=110 [2023-11-29 03:51:06,649 INFO L413 NwaCegarLoop]: 91 mSDtfsCounter, 446 mSDsluCounter, 361 mSDsCounter, 0 mSdLazyCounter, 237 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 450 SdHoareTripleChecker+Valid, 452 SdHoareTripleChecker+Invalid, 262 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 237 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-29 03:51:06,650 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [450 Valid, 452 Invalid, 262 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 237 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-29 03:51:06,651 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 199 states. [2023-11-29 03:51:06,667 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 199 to 176. [2023-11-29 03:51:06,668 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 176 states, 112 states have (on average 1.6964285714285714) internal successors, (190), 161 states have internal predecessors, (190), 12 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2023-11-29 03:51:06,669 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 176 states to 176 states and 214 transitions. [2023-11-29 03:51:06,669 INFO L78 Accepts]: Start accepts. Automaton has 176 states and 214 transitions. Word has length 32 [2023-11-29 03:51:06,670 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:51:06,670 INFO L495 AbstractCegarLoop]: Abstraction has 176 states and 214 transitions. [2023-11-29 03:51:06,670 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.875) internal successors, (31), 9 states have internal predecessors, (31), 3 states have call successors, (7), 1 states have call predecessors, (7), 2 states have return successors, (8), 2 states have call predecessors, (8), 3 states have call successors, (8) [2023-11-29 03:51:06,670 INFO L276 IsEmpty]: Start isEmpty. Operand 176 states and 214 transitions. [2023-11-29 03:51:06,671 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2023-11-29 03:51:06,671 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:51:06,671 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:51:06,677 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0345f207-eb94-43c0-b5d4-be7362f6a67e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2023-11-29 03:51:06,871 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0345f207-eb94-43c0-b5d4-be7362f6a67e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:51:06,872 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr32ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2023-11-29 03:51:06,872 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:51:06,872 INFO L85 PathProgramCache]: Analyzing trace with hash 500082976, now seen corresponding path program 1 times [2023-11-29 03:51:06,873 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:51:06,873 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [282547409] [2023-11-29 03:51:06,873 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:51:06,873 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:51:06,885 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 03:51:06,885 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2103602562] [2023-11-29 03:51:06,886 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:51:06,886 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:51:06,886 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0345f207-eb94-43c0-b5d4-be7362f6a67e/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:51:06,887 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0345f207-eb94-43c0-b5d4-be7362f6a67e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:51:06,891 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0345f207-eb94-43c0-b5d4-be7362f6a67e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2023-11-29 03:51:06,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:51:06,945 INFO L262 TraceCheckSpWp]: Trace formula consists of 100 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-29 03:51:06,947 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:51:06,989 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2023-11-29 03:51:06,989 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 03:51:06,989 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:51:06,989 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [282547409] [2023-11-29 03:51:06,990 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 03:51:06,990 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2103602562] [2023-11-29 03:51:06,990 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2103602562] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:51:06,990 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:51:06,990 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 03:51:06,990 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [640547116] [2023-11-29 03:51:06,990 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:51:06,991 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 03:51:06,991 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:51:06,992 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 03:51:06,992 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-29 03:51:06,992 INFO L87 Difference]: Start difference. First operand 176 states and 214 transitions. Second operand has 4 states, 3 states have (on average 5.333333333333333) internal successors, (16), 4 states have internal predecessors, (16), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2023-11-29 03:51:07,232 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:51:07,232 INFO L93 Difference]: Finished difference Result 276 states and 299 transitions. [2023-11-29 03:51:07,232 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 03:51:07,233 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 5.333333333333333) internal successors, (16), 4 states have internal predecessors, (16), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 33 [2023-11-29 03:51:07,233 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:51:07,235 INFO L225 Difference]: With dead ends: 276 [2023-11-29 03:51:07,235 INFO L226 Difference]: Without dead ends: 275 [2023-11-29 03:51:07,235 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-29 03:51:07,236 INFO L413 NwaCegarLoop]: 102 mSDtfsCounter, 187 mSDsluCounter, 146 mSDsCounter, 0 mSdLazyCounter, 93 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 195 SdHoareTripleChecker+Valid, 248 SdHoareTripleChecker+Invalid, 98 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 93 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-29 03:51:07,236 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [195 Valid, 248 Invalid, 98 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 93 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-29 03:51:07,237 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 275 states. [2023-11-29 03:51:07,252 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 275 to 184. [2023-11-29 03:51:07,252 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 184 states, 120 states have (on average 1.6583333333333334) internal successors, (199), 169 states have internal predecessors, (199), 12 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2023-11-29 03:51:07,254 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 184 states to 184 states and 223 transitions. [2023-11-29 03:51:07,254 INFO L78 Accepts]: Start accepts. Automaton has 184 states and 223 transitions. Word has length 33 [2023-11-29 03:51:07,254 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:51:07,254 INFO L495 AbstractCegarLoop]: Abstraction has 184 states and 223 transitions. [2023-11-29 03:51:07,255 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 5.333333333333333) internal successors, (16), 4 states have internal predecessors, (16), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2023-11-29 03:51:07,255 INFO L276 IsEmpty]: Start isEmpty. Operand 184 states and 223 transitions. [2023-11-29 03:51:07,256 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2023-11-29 03:51:07,256 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:51:07,256 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:51:07,261 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0345f207-eb94-43c0-b5d4-be7362f6a67e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2023-11-29 03:51:07,457 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0345f207-eb94-43c0-b5d4-be7362f6a67e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2023-11-29 03:51:07,457 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2023-11-29 03:51:07,457 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:51:07,457 INFO L85 PathProgramCache]: Analyzing trace with hash 145081506, now seen corresponding path program 1 times [2023-11-29 03:51:07,457 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:51:07,458 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [231688913] [2023-11-29 03:51:07,458 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:51:07,458 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:51:07,469 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 03:51:07,469 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [684502743] [2023-11-29 03:51:07,469 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:51:07,469 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:51:07,469 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0345f207-eb94-43c0-b5d4-be7362f6a67e/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:51:07,470 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0345f207-eb94-43c0-b5d4-be7362f6a67e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:51:07,471 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0345f207-eb94-43c0-b5d4-be7362f6a67e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2023-11-29 03:51:07,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:51:07,513 INFO L262 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 14 conjunts are in the unsatisfiable core [2023-11-29 03:51:07,515 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:51:07,681 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2023-11-29 03:51:07,681 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 03:51:07,682 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:51:07,682 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [231688913] [2023-11-29 03:51:07,682 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 03:51:07,682 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [684502743] [2023-11-29 03:51:07,682 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [684502743] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:51:07,682 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:51:07,682 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-29 03:51:07,683 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1349987159] [2023-11-29 03:51:07,683 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:51:07,683 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-29 03:51:07,683 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:51:07,684 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-29 03:51:07,684 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2023-11-29 03:51:07,684 INFO L87 Difference]: Start difference. First operand 184 states and 223 transitions. Second operand has 8 states, 7 states have (on average 2.7142857142857144) internal successors, (19), 7 states have internal predecessors, (19), 1 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) [2023-11-29 03:51:08,811 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:51:08,811 INFO L93 Difference]: Finished difference Result 257 states and 280 transitions. [2023-11-29 03:51:08,811 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-29 03:51:08,811 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 2.7142857142857144) internal successors, (19), 7 states have internal predecessors, (19), 1 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) Word has length 33 [2023-11-29 03:51:08,812 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:51:08,813 INFO L225 Difference]: With dead ends: 257 [2023-11-29 03:51:08,814 INFO L226 Difference]: Without dead ends: 256 [2023-11-29 03:51:08,814 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=38, Invalid=94, Unknown=0, NotChecked=0, Total=132 [2023-11-29 03:51:08,815 INFO L413 NwaCegarLoop]: 71 mSDtfsCounter, 409 mSDsluCounter, 284 mSDsCounter, 0 mSdLazyCounter, 474 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 413 SdHoareTripleChecker+Valid, 355 SdHoareTripleChecker+Invalid, 498 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 474 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2023-11-29 03:51:08,815 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [413 Valid, 355 Invalid, 498 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 474 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2023-11-29 03:51:08,816 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 256 states. [2023-11-29 03:51:08,832 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 256 to 184. [2023-11-29 03:51:08,833 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 184 states, 120 states have (on average 1.65) internal successors, (198), 169 states have internal predecessors, (198), 12 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2023-11-29 03:51:08,834 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 184 states to 184 states and 222 transitions. [2023-11-29 03:51:08,834 INFO L78 Accepts]: Start accepts. Automaton has 184 states and 222 transitions. Word has length 33 [2023-11-29 03:51:08,835 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:51:08,835 INFO L495 AbstractCegarLoop]: Abstraction has 184 states and 222 transitions. [2023-11-29 03:51:08,835 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 2.7142857142857144) internal successors, (19), 7 states have internal predecessors, (19), 1 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) [2023-11-29 03:51:08,835 INFO L276 IsEmpty]: Start isEmpty. Operand 184 states and 222 transitions. [2023-11-29 03:51:08,836 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2023-11-29 03:51:08,836 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:51:08,836 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:51:08,842 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0345f207-eb94-43c0-b5d4-be7362f6a67e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2023-11-29 03:51:09,042 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0345f207-eb94-43c0-b5d4-be7362f6a67e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2023-11-29 03:51:09,042 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr33ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2023-11-29 03:51:09,042 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:51:09,042 INFO L85 PathProgramCache]: Analyzing trace with hash -1677296769, now seen corresponding path program 1 times [2023-11-29 03:51:09,042 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:51:09,042 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [312563156] [2023-11-29 03:51:09,043 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:51:09,043 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:51:09,054 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 03:51:09,054 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1219067669] [2023-11-29 03:51:09,054 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:51:09,054 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:51:09,054 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0345f207-eb94-43c0-b5d4-be7362f6a67e/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:51:09,055 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0345f207-eb94-43c0-b5d4-be7362f6a67e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:51:09,057 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0345f207-eb94-43c0-b5d4-be7362f6a67e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2023-11-29 03:51:09,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:51:09,107 INFO L262 TraceCheckSpWp]: Trace formula consists of 101 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-29 03:51:09,108 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:51:09,147 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2023-11-29 03:51:09,147 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 03:51:09,147 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:51:09,147 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [312563156] [2023-11-29 03:51:09,148 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 03:51:09,148 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1219067669] [2023-11-29 03:51:09,148 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1219067669] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:51:09,148 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:51:09,148 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 03:51:09,148 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2110569498] [2023-11-29 03:51:09,148 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:51:09,149 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 03:51:09,149 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:51:09,149 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 03:51:09,149 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-29 03:51:09,150 INFO L87 Difference]: Start difference. First operand 184 states and 222 transitions. Second operand has 4 states, 3 states have (on average 5.666666666666667) internal successors, (17), 4 states have internal predecessors, (17), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2023-11-29 03:51:09,317 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:51:09,317 INFO L93 Difference]: Finished difference Result 274 states and 296 transitions. [2023-11-29 03:51:09,318 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 03:51:09,318 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 5.666666666666667) internal successors, (17), 4 states have internal predecessors, (17), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 34 [2023-11-29 03:51:09,318 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:51:09,320 INFO L225 Difference]: With dead ends: 274 [2023-11-29 03:51:09,320 INFO L226 Difference]: Without dead ends: 273 [2023-11-29 03:51:09,320 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-29 03:51:09,321 INFO L413 NwaCegarLoop]: 103 mSDtfsCounter, 123 mSDsluCounter, 232 mSDsCounter, 0 mSdLazyCounter, 137 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 131 SdHoareTripleChecker+Valid, 335 SdHoareTripleChecker+Invalid, 138 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 137 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 03:51:09,321 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [131 Valid, 335 Invalid, 138 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 137 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 03:51:09,322 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 273 states. [2023-11-29 03:51:09,337 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 273 to 185. [2023-11-29 03:51:09,338 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 185 states, 121 states have (on average 1.6446280991735538) internal successors, (199), 170 states have internal predecessors, (199), 12 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2023-11-29 03:51:09,339 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 185 states to 185 states and 223 transitions. [2023-11-29 03:51:09,340 INFO L78 Accepts]: Start accepts. Automaton has 185 states and 223 transitions. Word has length 34 [2023-11-29 03:51:09,340 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:51:09,340 INFO L495 AbstractCegarLoop]: Abstraction has 185 states and 223 transitions. [2023-11-29 03:51:09,340 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 5.666666666666667) internal successors, (17), 4 states have internal predecessors, (17), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2023-11-29 03:51:09,340 INFO L276 IsEmpty]: Start isEmpty. Operand 185 states and 223 transitions. [2023-11-29 03:51:09,341 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2023-11-29 03:51:09,341 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:51:09,341 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:51:09,348 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0345f207-eb94-43c0-b5d4-be7362f6a67e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2023-11-29 03:51:09,548 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0345f207-eb94-43c0-b5d4-be7362f6a67e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2023-11-29 03:51:09,548 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2023-11-29 03:51:09,548 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:51:09,548 INFO L85 PathProgramCache]: Analyzing trace with hash 202559477, now seen corresponding path program 1 times [2023-11-29 03:51:09,548 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:51:09,549 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2074966578] [2023-11-29 03:51:09,549 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:51:09,549 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:51:09,559 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 03:51:09,559 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1081305060] [2023-11-29 03:51:09,559 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:51:09,559 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:51:09,560 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0345f207-eb94-43c0-b5d4-be7362f6a67e/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:51:09,561 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0345f207-eb94-43c0-b5d4-be7362f6a67e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:51:09,562 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0345f207-eb94-43c0-b5d4-be7362f6a67e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2023-11-29 03:51:09,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:51:09,606 INFO L262 TraceCheckSpWp]: Trace formula consists of 92 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-29 03:51:09,607 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:51:09,632 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2023-11-29 03:51:09,632 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 03:51:09,633 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:51:09,633 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2074966578] [2023-11-29 03:51:09,633 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 03:51:09,633 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1081305060] [2023-11-29 03:51:09,633 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1081305060] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:51:09,633 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:51:09,633 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 03:51:09,633 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [791954003] [2023-11-29 03:51:09,634 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:51:09,634 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 03:51:09,634 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:51:09,634 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 03:51:09,635 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-29 03:51:09,635 INFO L87 Difference]: Start difference. First operand 185 states and 223 transitions. Second operand has 4 states, 3 states have (on average 5.666666666666667) internal successors, (17), 4 states have internal predecessors, (17), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2023-11-29 03:51:09,848 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:51:09,848 INFO L93 Difference]: Finished difference Result 211 states and 228 transitions. [2023-11-29 03:51:09,849 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 03:51:09,849 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 5.666666666666667) internal successors, (17), 4 states have internal predecessors, (17), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 34 [2023-11-29 03:51:09,849 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:51:09,851 INFO L225 Difference]: With dead ends: 211 [2023-11-29 03:51:09,851 INFO L226 Difference]: Without dead ends: 210 [2023-11-29 03:51:09,851 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-29 03:51:09,852 INFO L413 NwaCegarLoop]: 126 mSDtfsCounter, 102 mSDsluCounter, 121 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 106 SdHoareTripleChecker+Valid, 247 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-29 03:51:09,853 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [106 Valid, 247 Invalid, 48 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-29 03:51:09,854 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 210 states. [2023-11-29 03:51:09,870 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 210 to 185. [2023-11-29 03:51:09,871 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 185 states, 121 states have (on average 1.6363636363636365) internal successors, (198), 170 states have internal predecessors, (198), 12 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2023-11-29 03:51:09,872 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 185 states to 185 states and 222 transitions. [2023-11-29 03:51:09,872 INFO L78 Accepts]: Start accepts. Automaton has 185 states and 222 transitions. Word has length 34 [2023-11-29 03:51:09,873 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:51:09,873 INFO L495 AbstractCegarLoop]: Abstraction has 185 states and 222 transitions. [2023-11-29 03:51:09,873 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 5.666666666666667) internal successors, (17), 4 states have internal predecessors, (17), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2023-11-29 03:51:09,874 INFO L276 IsEmpty]: Start isEmpty. Operand 185 states and 222 transitions. [2023-11-29 03:51:09,874 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2023-11-29 03:51:09,874 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:51:09,874 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:51:09,880 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0345f207-eb94-43c0-b5d4-be7362f6a67e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2023-11-29 03:51:10,076 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0345f207-eb94-43c0-b5d4-be7362f6a67e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:51:10,076 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr34ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2023-11-29 03:51:10,076 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:51:10,077 INFO L85 PathProgramCache]: Analyzing trace with hash -456592126, now seen corresponding path program 1 times [2023-11-29 03:51:10,077 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:51:10,077 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2126580925] [2023-11-29 03:51:10,077 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:51:10,077 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:51:10,087 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 03:51:10,088 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [257487833] [2023-11-29 03:51:10,088 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:51:10,088 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:51:10,088 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0345f207-eb94-43c0-b5d4-be7362f6a67e/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:51:10,089 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0345f207-eb94-43c0-b5d4-be7362f6a67e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:51:10,090 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0345f207-eb94-43c0-b5d4-be7362f6a67e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2023-11-29 03:51:10,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:51:10,138 INFO L262 TraceCheckSpWp]: Trace formula consists of 102 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-29 03:51:10,139 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:51:10,177 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2023-11-29 03:51:10,177 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 03:51:10,177 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:51:10,177 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2126580925] [2023-11-29 03:51:10,177 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 03:51:10,177 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [257487833] [2023-11-29 03:51:10,177 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [257487833] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:51:10,177 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:51:10,178 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-29 03:51:10,178 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1823534068] [2023-11-29 03:51:10,178 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:51:10,178 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 03:51:10,178 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:51:10,179 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 03:51:10,179 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-29 03:51:10,179 INFO L87 Difference]: Start difference. First operand 185 states and 222 transitions. Second operand has 5 states, 4 states have (on average 4.5) internal successors, (18), 5 states have internal predecessors, (18), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2023-11-29 03:51:10,350 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:51:10,350 INFO L93 Difference]: Finished difference Result 213 states and 230 transitions. [2023-11-29 03:51:10,351 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-29 03:51:10,351 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 4.5) internal successors, (18), 5 states have internal predecessors, (18), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 35 [2023-11-29 03:51:10,351 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:51:10,352 INFO L225 Difference]: With dead ends: 213 [2023-11-29 03:51:10,352 INFO L226 Difference]: Without dead ends: 212 [2023-11-29 03:51:10,353 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-29 03:51:10,353 INFO L413 NwaCegarLoop]: 127 mSDtfsCounter, 58 mSDsluCounter, 231 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 62 SdHoareTripleChecker+Valid, 358 SdHoareTripleChecker+Invalid, 51 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-29 03:51:10,354 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [62 Valid, 358 Invalid, 51 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-29 03:51:10,355 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 212 states. [2023-11-29 03:51:10,370 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 212 to 188. [2023-11-29 03:51:10,371 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 188 states, 124 states have (on average 1.6370967741935485) internal successors, (203), 173 states have internal predecessors, (203), 12 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2023-11-29 03:51:10,372 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 188 states to 188 states and 227 transitions. [2023-11-29 03:51:10,372 INFO L78 Accepts]: Start accepts. Automaton has 188 states and 227 transitions. Word has length 35 [2023-11-29 03:51:10,373 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:51:10,373 INFO L495 AbstractCegarLoop]: Abstraction has 188 states and 227 transitions. [2023-11-29 03:51:10,373 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 4.5) internal successors, (18), 5 states have internal predecessors, (18), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2023-11-29 03:51:10,373 INFO L276 IsEmpty]: Start isEmpty. Operand 188 states and 227 transitions. [2023-11-29 03:51:10,373 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2023-11-29 03:51:10,374 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:51:10,374 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:51:10,379 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0345f207-eb94-43c0-b5d4-be7362f6a67e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2023-11-29 03:51:10,574 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0345f207-eb94-43c0-b5d4-be7362f6a67e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:51:10,574 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr35ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2023-11-29 03:51:10,575 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:51:10,575 INFO L85 PathProgramCache]: Analyzing trace with hash -1269453855, now seen corresponding path program 1 times [2023-11-29 03:51:10,575 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:51:10,575 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [251472808] [2023-11-29 03:51:10,575 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:51:10,575 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:51:10,584 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 03:51:10,585 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1054492897] [2023-11-29 03:51:10,585 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:51:10,585 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:51:10,585 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0345f207-eb94-43c0-b5d4-be7362f6a67e/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:51:10,586 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0345f207-eb94-43c0-b5d4-be7362f6a67e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:51:10,587 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0345f207-eb94-43c0-b5d4-be7362f6a67e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2023-11-29 03:51:10,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:51:10,639 INFO L262 TraceCheckSpWp]: Trace formula consists of 103 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-29 03:51:10,640 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:51:10,709 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2023-11-29 03:51:10,709 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 03:51:10,709 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:51:10,709 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [251472808] [2023-11-29 03:51:10,709 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 03:51:10,710 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1054492897] [2023-11-29 03:51:10,710 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1054492897] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:51:10,710 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:51:10,710 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-29 03:51:10,710 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [285184454] [2023-11-29 03:51:10,710 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:51:10,710 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 03:51:10,710 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:51:10,711 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 03:51:10,711 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-29 03:51:10,711 INFO L87 Difference]: Start difference. First operand 188 states and 227 transitions. Second operand has 5 states, 4 states have (on average 4.75) internal successors, (19), 5 states have internal predecessors, (19), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2023-11-29 03:51:10,969 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:51:10,969 INFO L93 Difference]: Finished difference Result 265 states and 289 transitions. [2023-11-29 03:51:10,969 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-29 03:51:10,969 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 4.75) internal successors, (19), 5 states have internal predecessors, (19), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 36 [2023-11-29 03:51:10,969 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:51:10,971 INFO L225 Difference]: With dead ends: 265 [2023-11-29 03:51:10,971 INFO L226 Difference]: Without dead ends: 264 [2023-11-29 03:51:10,971 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-29 03:51:10,972 INFO L413 NwaCegarLoop]: 101 mSDtfsCounter, 161 mSDsluCounter, 203 mSDsCounter, 0 mSdLazyCounter, 162 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 169 SdHoareTripleChecker+Valid, 304 SdHoareTripleChecker+Invalid, 166 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 162 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-29 03:51:10,972 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [169 Valid, 304 Invalid, 166 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 162 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-29 03:51:10,973 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 264 states. [2023-11-29 03:51:10,984 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 264 to 190. [2023-11-29 03:51:10,985 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 190 states, 126 states have (on average 1.626984126984127) internal successors, (205), 175 states have internal predecessors, (205), 12 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2023-11-29 03:51:10,986 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 190 states to 190 states and 229 transitions. [2023-11-29 03:51:10,987 INFO L78 Accepts]: Start accepts. Automaton has 190 states and 229 transitions. Word has length 36 [2023-11-29 03:51:10,987 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:51:10,987 INFO L495 AbstractCegarLoop]: Abstraction has 190 states and 229 transitions. [2023-11-29 03:51:10,987 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 4.75) internal successors, (19), 5 states have internal predecessors, (19), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2023-11-29 03:51:10,987 INFO L276 IsEmpty]: Start isEmpty. Operand 190 states and 229 transitions. [2023-11-29 03:51:10,987 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2023-11-29 03:51:10,988 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:51:10,988 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:51:10,993 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0345f207-eb94-43c0-b5d4-be7362f6a67e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Ended with exit code 0 [2023-11-29 03:51:11,188 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0345f207-eb94-43c0-b5d4-be7362f6a67e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2023-11-29 03:51:11,188 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr36ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2023-11-29 03:51:11,189 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:51:11,189 INFO L85 PathProgramCache]: Analyzing trace with hash -1112706140, now seen corresponding path program 1 times [2023-11-29 03:51:11,189 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:51:11,189 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [170488194] [2023-11-29 03:51:11,189 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:51:11,189 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:51:11,197 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 03:51:11,197 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1260684140] [2023-11-29 03:51:11,198 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:51:11,198 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:51:11,198 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0345f207-eb94-43c0-b5d4-be7362f6a67e/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:51:11,199 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0345f207-eb94-43c0-b5d4-be7362f6a67e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:51:11,200 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0345f207-eb94-43c0-b5d4-be7362f6a67e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2023-11-29 03:51:11,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:51:11,243 INFO L262 TraceCheckSpWp]: Trace formula consists of 109 conjuncts, 9 conjunts are in the unsatisfiable core [2023-11-29 03:51:11,244 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:51:11,294 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 6 proven. 5 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2023-11-29 03:51:11,294 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 03:51:11,361 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 6 proven. 5 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2023-11-29 03:51:11,361 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:51:11,361 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [170488194] [2023-11-29 03:51:11,361 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 03:51:11,361 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1260684140] [2023-11-29 03:51:11,361 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1260684140] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 03:51:11,361 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 03:51:11,361 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 9 [2023-11-29 03:51:11,362 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [955761589] [2023-11-29 03:51:11,362 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 03:51:11,362 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-29 03:51:11,362 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:51:11,363 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-29 03:51:11,363 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2023-11-29 03:51:11,363 INFO L87 Difference]: Start difference. First operand 190 states and 229 transitions. Second operand has 9 states, 9 states have (on average 3.0) internal successors, (27), 8 states have internal predecessors, (27), 2 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-29 03:51:12,808 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:51:12,808 INFO L93 Difference]: Finished difference Result 514 states and 597 transitions. [2023-11-29 03:51:12,808 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-29 03:51:12,808 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 3.0) internal successors, (27), 8 states have internal predecessors, (27), 2 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 39 [2023-11-29 03:51:12,809 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:51:12,812 INFO L225 Difference]: With dead ends: 514 [2023-11-29 03:51:12,812 INFO L226 Difference]: Without dead ends: 486 [2023-11-29 03:51:12,813 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 65 SyntacticMatches, 4 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=47, Invalid=135, Unknown=0, NotChecked=0, Total=182 [2023-11-29 03:51:12,813 INFO L413 NwaCegarLoop]: 120 mSDtfsCounter, 542 mSDsluCounter, 578 mSDsCounter, 0 mSdLazyCounter, 563 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 546 SdHoareTripleChecker+Valid, 698 SdHoareTripleChecker+Invalid, 587 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 563 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2023-11-29 03:51:12,814 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [546 Valid, 698 Invalid, 587 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 563 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2023-11-29 03:51:12,815 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 486 states. [2023-11-29 03:51:12,840 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 486 to 257. [2023-11-29 03:51:12,841 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 257 states, 189 states have (on average 1.6825396825396826) internal successors, (318), 238 states have internal predecessors, (318), 16 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2023-11-29 03:51:12,843 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 257 states to 257 states and 350 transitions. [2023-11-29 03:51:12,843 INFO L78 Accepts]: Start accepts. Automaton has 257 states and 350 transitions. Word has length 39 [2023-11-29 03:51:12,844 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:51:12,844 INFO L495 AbstractCegarLoop]: Abstraction has 257 states and 350 transitions. [2023-11-29 03:51:12,844 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 3.0) internal successors, (27), 8 states have internal predecessors, (27), 2 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-29 03:51:12,844 INFO L276 IsEmpty]: Start isEmpty. Operand 257 states and 350 transitions. [2023-11-29 03:51:12,845 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2023-11-29 03:51:12,845 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:51:12,845 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:51:12,850 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0345f207-eb94-43c0-b5d4-be7362f6a67e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Ended with exit code 0 [2023-11-29 03:51:13,045 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0345f207-eb94-43c0-b5d4-be7362f6a67e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2023-11-29 03:51:13,046 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2023-11-29 03:51:13,046 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:51:13,046 INFO L85 PathProgramCache]: Analyzing trace with hash 330389210, now seen corresponding path program 1 times [2023-11-29 03:51:13,046 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:51:13,046 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [684723730] [2023-11-29 03:51:13,046 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:51:13,047 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:51:13,054 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 03:51:13,054 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1981305091] [2023-11-29 03:51:13,055 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:51:13,055 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:51:13,055 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0345f207-eb94-43c0-b5d4-be7362f6a67e/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:51:13,056 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0345f207-eb94-43c0-b5d4-be7362f6a67e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:51:13,058 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0345f207-eb94-43c0-b5d4-be7362f6a67e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2023-11-29 03:51:13,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:51:13,106 INFO L262 TraceCheckSpWp]: Trace formula consists of 104 conjuncts, 11 conjunts are in the unsatisfiable core [2023-11-29 03:51:13,107 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:51:13,264 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 3 proven. 6 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2023-11-29 03:51:13,265 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 03:51:13,441 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 3 proven. 6 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2023-11-29 03:51:13,441 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:51:13,441 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [684723730] [2023-11-29 03:51:13,441 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 03:51:13,441 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1981305091] [2023-11-29 03:51:13,441 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1981305091] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 03:51:13,441 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 03:51:13,441 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 10 [2023-11-29 03:51:13,442 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2042259388] [2023-11-29 03:51:13,442 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 03:51:13,442 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-11-29 03:51:13,442 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:51:13,443 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-11-29 03:51:13,443 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2023-11-29 03:51:13,443 INFO L87 Difference]: Start difference. First operand 257 states and 350 transitions. Second operand has 11 states, 10 states have (on average 4.3) internal successors, (43), 9 states have internal predecessors, (43), 5 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (9), 5 states have call predecessors, (9), 5 states have call successors, (9) [2023-11-29 03:51:13,859 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:51:13,860 INFO L93 Difference]: Finished difference Result 315 states and 393 transitions. [2023-11-29 03:51:13,860 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-29 03:51:13,860 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 4.3) internal successors, (43), 9 states have internal predecessors, (43), 5 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (9), 5 states have call predecessors, (9), 5 states have call successors, (9) Word has length 42 [2023-11-29 03:51:13,860 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:51:13,862 INFO L225 Difference]: With dead ends: 315 [2023-11-29 03:51:13,862 INFO L226 Difference]: Without dead ends: 313 [2023-11-29 03:51:13,862 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 73 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=62, Invalid=148, Unknown=0, NotChecked=0, Total=210 [2023-11-29 03:51:13,863 INFO L413 NwaCegarLoop]: 82 mSDtfsCounter, 483 mSDsluCounter, 424 mSDsCounter, 0 mSdLazyCounter, 428 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 484 SdHoareTripleChecker+Valid, 506 SdHoareTripleChecker+Invalid, 454 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 428 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-29 03:51:13,863 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [484 Valid, 506 Invalid, 454 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 428 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-29 03:51:13,864 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 313 states. [2023-11-29 03:51:13,892 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 313 to 269. [2023-11-29 03:51:13,893 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 269 states, 199 states have (on average 1.678391959798995) internal successors, (334), 248 states have internal predecessors, (334), 18 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2023-11-29 03:51:13,895 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 269 states to 269 states and 370 transitions. [2023-11-29 03:51:13,895 INFO L78 Accepts]: Start accepts. Automaton has 269 states and 370 transitions. Word has length 42 [2023-11-29 03:51:13,895 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:51:13,895 INFO L495 AbstractCegarLoop]: Abstraction has 269 states and 370 transitions. [2023-11-29 03:51:13,896 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 4.3) internal successors, (43), 9 states have internal predecessors, (43), 5 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (9), 5 states have call predecessors, (9), 5 states have call successors, (9) [2023-11-29 03:51:13,896 INFO L276 IsEmpty]: Start isEmpty. Operand 269 states and 370 transitions. [2023-11-29 03:51:13,896 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2023-11-29 03:51:13,896 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:51:13,896 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:51:13,902 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0345f207-eb94-43c0-b5d4-be7362f6a67e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Ended with exit code 0 [2023-11-29 03:51:14,097 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0345f207-eb94-43c0-b5d4-be7362f6a67e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2023-11-29 03:51:14,097 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr28ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2023-11-29 03:51:14,098 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:51:14,098 INFO L85 PathProgramCache]: Analyzing trace with hash -72300597, now seen corresponding path program 1 times [2023-11-29 03:51:14,098 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:51:14,098 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1730909776] [2023-11-29 03:51:14,098 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:51:14,098 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:51:14,106 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 03:51:14,106 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [877537801] [2023-11-29 03:51:14,106 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:51:14,106 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:51:14,107 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0345f207-eb94-43c0-b5d4-be7362f6a67e/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:51:14,108 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0345f207-eb94-43c0-b5d4-be7362f6a67e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:51:14,109 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0345f207-eb94-43c0-b5d4-be7362f6a67e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2023-11-29 03:51:14,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:51:14,153 INFO L262 TraceCheckSpWp]: Trace formula consists of 122 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-29 03:51:14,154 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:51:14,181 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2023-11-29 03:51:14,181 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 03:51:14,181 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:51:14,181 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1730909776] [2023-11-29 03:51:14,182 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 03:51:14,182 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [877537801] [2023-11-29 03:51:14,182 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [877537801] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:51:14,182 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:51:14,182 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-29 03:51:14,182 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1910679269] [2023-11-29 03:51:14,182 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:51:14,182 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 03:51:14,183 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:51:14,183 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 03:51:14,183 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-29 03:51:14,183 INFO L87 Difference]: Start difference. First operand 269 states and 370 transitions. Second operand has 5 states, 5 states have (on average 5.0) internal successors, (25), 5 states have internal predecessors, (25), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2023-11-29 03:51:14,391 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:51:14,391 INFO L93 Difference]: Finished difference Result 565 states and 743 transitions. [2023-11-29 03:51:14,391 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-29 03:51:14,392 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.0) internal successors, (25), 5 states have internal predecessors, (25), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 42 [2023-11-29 03:51:14,392 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:51:14,395 INFO L225 Difference]: With dead ends: 565 [2023-11-29 03:51:14,395 INFO L226 Difference]: Without dead ends: 364 [2023-11-29 03:51:14,397 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2023-11-29 03:51:14,398 INFO L413 NwaCegarLoop]: 172 mSDtfsCounter, 207 mSDsluCounter, 352 mSDsCounter, 0 mSdLazyCounter, 143 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 211 SdHoareTripleChecker+Valid, 524 SdHoareTripleChecker+Invalid, 151 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 143 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-29 03:51:14,398 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [211 Valid, 524 Invalid, 151 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 143 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-29 03:51:14,399 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 364 states. [2023-11-29 03:51:14,424 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 364 to 198. [2023-11-29 03:51:14,424 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 198 states, 133 states have (on average 1.6015037593984962) internal successors, (213), 182 states have internal predecessors, (213), 13 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2023-11-29 03:51:14,426 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 198 states to 198 states and 239 transitions. [2023-11-29 03:51:14,426 INFO L78 Accepts]: Start accepts. Automaton has 198 states and 239 transitions. Word has length 42 [2023-11-29 03:51:14,427 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:51:14,427 INFO L495 AbstractCegarLoop]: Abstraction has 198 states and 239 transitions. [2023-11-29 03:51:14,427 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.0) internal successors, (25), 5 states have internal predecessors, (25), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2023-11-29 03:51:14,427 INFO L276 IsEmpty]: Start isEmpty. Operand 198 states and 239 transitions. [2023-11-29 03:51:14,427 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2023-11-29 03:51:14,428 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:51:14,428 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:51:14,433 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0345f207-eb94-43c0-b5d4-be7362f6a67e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Forceful destruction successful, exit code 0 [2023-11-29 03:51:14,628 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0345f207-eb94-43c0-b5d4-be7362f6a67e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2023-11-29 03:51:14,628 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2023-11-29 03:51:14,629 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:51:14,629 INFO L85 PathProgramCache]: Analyzing trace with hash -72300979, now seen corresponding path program 1 times [2023-11-29 03:51:14,629 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:51:14,629 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [334418457] [2023-11-29 03:51:14,629 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:51:14,629 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:51:14,637 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 03:51:14,638 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1448875891] [2023-11-29 03:51:14,638 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:51:14,638 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:51:14,638 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0345f207-eb94-43c0-b5d4-be7362f6a67e/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:51:14,639 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0345f207-eb94-43c0-b5d4-be7362f6a67e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:51:14,642 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0345f207-eb94-43c0-b5d4-be7362f6a67e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2023-11-29 03:51:14,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:51:14,694 INFO L262 TraceCheckSpWp]: Trace formula consists of 119 conjuncts, 20 conjunts are in the unsatisfiable core [2023-11-29 03:51:14,696 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:51:14,978 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 6 proven. 10 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-11-29 03:51:14,979 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 03:51:15,428 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:51:15,429 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [334418457] [2023-11-29 03:51:15,429 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 03:51:15,429 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1448875891] [2023-11-29 03:51:15,429 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1448875891] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 03:51:15,429 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 03:51:15,429 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2023-11-29 03:51:15,429 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [336506233] [2023-11-29 03:51:15,430 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 03:51:15,430 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-29 03:51:15,430 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:51:15,431 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-29 03:51:15,431 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=269, Unknown=0, NotChecked=0, Total=342 [2023-11-29 03:51:15,431 INFO L87 Difference]: Start difference. First operand 198 states and 239 transitions. Second operand has 12 states, 10 states have (on average 2.8) internal successors, (28), 10 states have internal predecessors, (28), 3 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2023-11-29 03:51:16,860 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:51:16,861 INFO L93 Difference]: Finished difference Result 350 states and 390 transitions. [2023-11-29 03:51:16,861 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-11-29 03:51:16,861 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 10 states have (on average 2.8) internal successors, (28), 10 states have internal predecessors, (28), 3 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) Word has length 42 [2023-11-29 03:51:16,861 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:51:16,864 INFO L225 Difference]: With dead ends: 350 [2023-11-29 03:51:16,864 INFO L226 Difference]: Without dead ends: 349 [2023-11-29 03:51:16,864 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 110 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=179, Invalid=577, Unknown=0, NotChecked=0, Total=756 [2023-11-29 03:51:16,865 INFO L413 NwaCegarLoop]: 85 mSDtfsCounter, 506 mSDsluCounter, 501 mSDsCounter, 0 mSdLazyCounter, 1018 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 510 SdHoareTripleChecker+Valid, 586 SdHoareTripleChecker+Invalid, 1046 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 1018 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2023-11-29 03:51:16,865 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [510 Valid, 586 Invalid, 1046 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 1018 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2023-11-29 03:51:16,866 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 349 states. [2023-11-29 03:51:16,893 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 349 to 202. [2023-11-29 03:51:16,893 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 202 states, 137 states have (on average 1.583941605839416) internal successors, (217), 186 states have internal predecessors, (217), 13 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2023-11-29 03:51:16,895 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 202 states to 202 states and 243 transitions. [2023-11-29 03:51:16,895 INFO L78 Accepts]: Start accepts. Automaton has 202 states and 243 transitions. Word has length 42 [2023-11-29 03:51:16,895 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:51:16,895 INFO L495 AbstractCegarLoop]: Abstraction has 202 states and 243 transitions. [2023-11-29 03:51:16,896 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 10 states have (on average 2.8) internal successors, (28), 10 states have internal predecessors, (28), 3 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2023-11-29 03:51:16,896 INFO L276 IsEmpty]: Start isEmpty. Operand 202 states and 243 transitions. [2023-11-29 03:51:16,896 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2023-11-29 03:51:16,896 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:51:16,896 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:51:16,902 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0345f207-eb94-43c0-b5d4-be7362f6a67e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Ended with exit code 0 [2023-11-29 03:51:17,097 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0345f207-eb94-43c0-b5d4-be7362f6a67e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:51:17,097 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2023-11-29 03:51:17,097 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:51:17,098 INFO L85 PathProgramCache]: Analyzing trace with hash 2053637026, now seen corresponding path program 1 times [2023-11-29 03:51:17,098 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:51:17,098 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [151708336] [2023-11-29 03:51:17,098 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:51:17,098 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:51:17,107 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 03:51:17,107 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1328421714] [2023-11-29 03:51:17,107 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:51:17,108 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:51:17,108 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0345f207-eb94-43c0-b5d4-be7362f6a67e/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:51:17,109 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0345f207-eb94-43c0-b5d4-be7362f6a67e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:51:17,114 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0345f207-eb94-43c0-b5d4-be7362f6a67e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2023-11-29 03:51:17,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:51:17,165 INFO L262 TraceCheckSpWp]: Trace formula consists of 120 conjuncts, 20 conjunts are in the unsatisfiable core [2023-11-29 03:51:17,166 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:51:17,427 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 6 proven. 10 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-11-29 03:51:17,427 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 03:51:18,200 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:51:18,201 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [151708336] [2023-11-29 03:51:18,201 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 03:51:18,201 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1328421714] [2023-11-29 03:51:18,201 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1328421714] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 03:51:18,201 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 03:51:18,201 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2023-11-29 03:51:18,201 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1078721869] [2023-11-29 03:51:18,201 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 03:51:18,202 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-29 03:51:18,202 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:51:18,202 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-29 03:51:18,203 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=269, Unknown=0, NotChecked=0, Total=342 [2023-11-29 03:51:18,203 INFO L87 Difference]: Start difference. First operand 202 states and 243 transitions. Second operand has 12 states, 10 states have (on average 2.9) internal successors, (29), 10 states have internal predecessors, (29), 3 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2023-11-29 03:51:19,962 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:51:19,962 INFO L93 Difference]: Finished difference Result 349 states and 389 transitions. [2023-11-29 03:51:19,962 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-11-29 03:51:19,963 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 10 states have (on average 2.9) internal successors, (29), 10 states have internal predecessors, (29), 3 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) Word has length 43 [2023-11-29 03:51:19,963 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:51:19,964 INFO L225 Difference]: With dead ends: 349 [2023-11-29 03:51:19,964 INFO L226 Difference]: Without dead ends: 348 [2023-11-29 03:51:19,965 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 110 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=179, Invalid=577, Unknown=0, NotChecked=0, Total=756 [2023-11-29 03:51:19,965 INFO L413 NwaCegarLoop]: 85 mSDtfsCounter, 771 mSDsluCounter, 433 mSDsCounter, 0 mSdLazyCounter, 1002 mSolverCounterSat, 42 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 775 SdHoareTripleChecker+Valid, 518 SdHoareTripleChecker+Invalid, 1044 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 1002 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2023-11-29 03:51:19,965 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [775 Valid, 518 Invalid, 1044 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 1002 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2023-11-29 03:51:19,966 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 348 states. [2023-11-29 03:51:19,986 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 348 to 203. [2023-11-29 03:51:19,987 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 203 states, 138 states have (on average 1.5797101449275361) internal successors, (218), 187 states have internal predecessors, (218), 13 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2023-11-29 03:51:19,988 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 203 states to 203 states and 244 transitions. [2023-11-29 03:51:19,988 INFO L78 Accepts]: Start accepts. Automaton has 203 states and 244 transitions. Word has length 43 [2023-11-29 03:51:19,988 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:51:19,988 INFO L495 AbstractCegarLoop]: Abstraction has 203 states and 244 transitions. [2023-11-29 03:51:19,988 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 10 states have (on average 2.9) internal successors, (29), 10 states have internal predecessors, (29), 3 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2023-11-29 03:51:19,989 INFO L276 IsEmpty]: Start isEmpty. Operand 203 states and 244 transitions. [2023-11-29 03:51:19,989 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2023-11-29 03:51:19,989 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:51:19,989 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:51:19,995 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0345f207-eb94-43c0-b5d4-be7362f6a67e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Ended with exit code 0 [2023-11-29 03:51:20,190 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0345f207-eb94-43c0-b5d4-be7362f6a67e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:51:20,190 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2023-11-29 03:51:20,190 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:51:20,191 INFO L85 PathProgramCache]: Analyzing trace with hash -323546020, now seen corresponding path program 1 times [2023-11-29 03:51:20,191 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:51:20,191 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1841618633] [2023-11-29 03:51:20,191 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:51:20,191 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:51:20,200 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 03:51:20,200 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [528622989] [2023-11-29 03:51:20,200 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:51:20,201 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:51:20,201 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0345f207-eb94-43c0-b5d4-be7362f6a67e/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:51:20,202 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0345f207-eb94-43c0-b5d4-be7362f6a67e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:51:20,204 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0345f207-eb94-43c0-b5d4-be7362f6a67e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2023-11-29 03:51:20,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:51:20,257 INFO L262 TraceCheckSpWp]: Trace formula consists of 106 conjuncts, 9 conjunts are in the unsatisfiable core [2023-11-29 03:51:20,259 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:51:20,362 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2023-11-29 03:51:20,363 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 03:51:20,363 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:51:20,363 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1841618633] [2023-11-29 03:51:20,363 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 03:51:20,363 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [528622989] [2023-11-29 03:51:20,363 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [528622989] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:51:20,363 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:51:20,363 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-29 03:51:20,364 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [800729976] [2023-11-29 03:51:20,364 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:51:20,364 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 03:51:20,364 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:51:20,364 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 03:51:20,365 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-11-29 03:51:20,365 INFO L87 Difference]: Start difference. First operand 203 states and 244 transitions. Second operand has 6 states, 5 states have (on average 5.6) internal successors, (28), 5 states have internal predecessors, (28), 2 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 3 states have call predecessors, (5), 2 states have call successors, (5) [2023-11-29 03:51:20,696 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:51:20,696 INFO L93 Difference]: Finished difference Result 221 states and 244 transitions. [2023-11-29 03:51:20,696 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-29 03:51:20,696 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 5.6) internal successors, (28), 5 states have internal predecessors, (28), 2 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 3 states have call predecessors, (5), 2 states have call successors, (5) Word has length 44 [2023-11-29 03:51:20,697 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:51:20,698 INFO L225 Difference]: With dead ends: 221 [2023-11-29 03:51:20,698 INFO L226 Difference]: Without dead ends: 220 [2023-11-29 03:51:20,698 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2023-11-29 03:51:20,699 INFO L413 NwaCegarLoop]: 89 mSDtfsCounter, 196 mSDsluCounter, 228 mSDsCounter, 0 mSdLazyCounter, 213 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 203 SdHoareTripleChecker+Valid, 317 SdHoareTripleChecker+Invalid, 216 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 213 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-29 03:51:20,699 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [203 Valid, 317 Invalid, 216 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 213 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-29 03:51:20,700 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 220 states. [2023-11-29 03:51:20,717 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 220 to 203. [2023-11-29 03:51:20,717 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 203 states, 138 states have (on average 1.5724637681159421) internal successors, (217), 187 states have internal predecessors, (217), 13 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2023-11-29 03:51:20,718 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 203 states to 203 states and 243 transitions. [2023-11-29 03:51:20,718 INFO L78 Accepts]: Start accepts. Automaton has 203 states and 243 transitions. Word has length 44 [2023-11-29 03:51:20,718 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:51:20,718 INFO L495 AbstractCegarLoop]: Abstraction has 203 states and 243 transitions. [2023-11-29 03:51:20,719 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 5.6) internal successors, (28), 5 states have internal predecessors, (28), 2 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 3 states have call predecessors, (5), 2 states have call successors, (5) [2023-11-29 03:51:20,719 INFO L276 IsEmpty]: Start isEmpty. Operand 203 states and 243 transitions. [2023-11-29 03:51:20,719 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2023-11-29 03:51:20,719 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:51:20,719 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:51:20,724 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0345f207-eb94-43c0-b5d4-be7362f6a67e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Ended with exit code 0 [2023-11-29 03:51:20,920 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,22 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0345f207-eb94-43c0-b5d4-be7362f6a67e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:51:20,920 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2023-11-29 03:51:20,920 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:51:20,920 INFO L85 PathProgramCache]: Analyzing trace with hash -761761553, now seen corresponding path program 1 times [2023-11-29 03:51:20,920 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:51:20,921 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [462101856] [2023-11-29 03:51:20,921 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:51:20,921 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:51:20,929 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 03:51:20,929 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1387107623] [2023-11-29 03:51:20,929 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:51:20,929 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:51:20,929 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0345f207-eb94-43c0-b5d4-be7362f6a67e/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:51:20,930 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0345f207-eb94-43c0-b5d4-be7362f6a67e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:51:20,931 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0345f207-eb94-43c0-b5d4-be7362f6a67e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process [2023-11-29 03:51:20,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:51:20,978 INFO L262 TraceCheckSpWp]: Trace formula consists of 121 conjuncts, 13 conjunts are in the unsatisfiable core [2023-11-29 03:51:20,979 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:51:21,130 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 3 proven. 13 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-11-29 03:51:21,130 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 03:51:21,269 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:51:21,270 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [462101856] [2023-11-29 03:51:21,270 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 03:51:21,270 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1387107623] [2023-11-29 03:51:21,270 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1387107623] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 03:51:21,270 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 03:51:21,270 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2023-11-29 03:51:21,270 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1634034493] [2023-11-29 03:51:21,270 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 03:51:21,271 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-29 03:51:21,271 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:51:21,271 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-29 03:51:21,272 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2023-11-29 03:51:21,272 INFO L87 Difference]: Start difference. First operand 203 states and 243 transitions. Second operand has 8 states, 7 states have (on average 4.285714285714286) internal successors, (30), 7 states have internal predecessors, (30), 3 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 3 states have call successors, (4) [2023-11-29 03:51:21,670 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:51:21,671 INFO L93 Difference]: Finished difference Result 330 states and 365 transitions. [2023-11-29 03:51:21,674 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-29 03:51:21,674 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 4.285714285714286) internal successors, (30), 7 states have internal predecessors, (30), 3 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 3 states have call successors, (4) Word has length 44 [2023-11-29 03:51:21,674 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:51:21,677 INFO L225 Difference]: With dead ends: 330 [2023-11-29 03:51:21,677 INFO L226 Difference]: Without dead ends: 328 [2023-11-29 03:51:21,677 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 57 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=44, Invalid=112, Unknown=0, NotChecked=0, Total=156 [2023-11-29 03:51:21,678 INFO L413 NwaCegarLoop]: 87 mSDtfsCounter, 403 mSDsluCounter, 328 mSDsCounter, 0 mSdLazyCounter, 244 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 411 SdHoareTripleChecker+Valid, 415 SdHoareTripleChecker+Invalid, 265 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 244 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-29 03:51:21,678 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [411 Valid, 415 Invalid, 265 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 244 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-29 03:51:21,679 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 328 states. [2023-11-29 03:51:21,713 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 328 to 256. [2023-11-29 03:51:21,714 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 256 states, 186 states have (on average 1.6129032258064515) internal successors, (300), 235 states have internal predecessors, (300), 18 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2023-11-29 03:51:21,716 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 256 states to 256 states and 336 transitions. [2023-11-29 03:51:21,717 INFO L78 Accepts]: Start accepts. Automaton has 256 states and 336 transitions. Word has length 44 [2023-11-29 03:51:21,717 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:51:21,717 INFO L495 AbstractCegarLoop]: Abstraction has 256 states and 336 transitions. [2023-11-29 03:51:21,717 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 4.285714285714286) internal successors, (30), 7 states have internal predecessors, (30), 3 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 3 states have call successors, (4) [2023-11-29 03:51:21,717 INFO L276 IsEmpty]: Start isEmpty. Operand 256 states and 336 transitions. [2023-11-29 03:51:21,718 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2023-11-29 03:51:21,718 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:51:21,718 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:51:21,724 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0345f207-eb94-43c0-b5d4-be7362f6a67e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Ended with exit code 0 [2023-11-29 03:51:21,919 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21,23 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0345f207-eb94-43c0-b5d4-be7362f6a67e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:51:21,919 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2023-11-29 03:51:21,919 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:51:21,919 INFO L85 PathProgramCache]: Analyzing trace with hash -1439991928, now seen corresponding path program 1 times [2023-11-29 03:51:21,919 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:51:21,920 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1912798442] [2023-11-29 03:51:21,920 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:51:21,920 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:51:21,927 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 03:51:21,928 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2057331111] [2023-11-29 03:51:21,928 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:51:21,928 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:51:21,928 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0345f207-eb94-43c0-b5d4-be7362f6a67e/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:51:21,929 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0345f207-eb94-43c0-b5d4-be7362f6a67e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:51:21,932 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0345f207-eb94-43c0-b5d4-be7362f6a67e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Waiting until timeout for monitored process [2023-11-29 03:51:21,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:51:21,985 INFO L262 TraceCheckSpWp]: Trace formula consists of 107 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-29 03:51:21,986 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:51:22,024 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2023-11-29 03:51:22,024 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 03:51:22,024 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:51:22,024 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1912798442] [2023-11-29 03:51:22,024 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 03:51:22,025 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2057331111] [2023-11-29 03:51:22,025 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2057331111] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:51:22,025 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:51:22,025 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 03:51:22,025 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [109542828] [2023-11-29 03:51:22,025 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:51:22,026 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 03:51:22,026 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:51:22,026 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 03:51:22,026 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-29 03:51:22,026 INFO L87 Difference]: Start difference. First operand 256 states and 336 transitions. Second operand has 4 states, 3 states have (on average 8.666666666666666) internal successors, (26), 4 states have internal predecessors, (26), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-11-29 03:51:22,333 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:51:22,333 INFO L93 Difference]: Finished difference Result 285 states and 349 transitions. [2023-11-29 03:51:22,333 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 03:51:22,333 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 8.666666666666666) internal successors, (26), 4 states have internal predecessors, (26), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 45 [2023-11-29 03:51:22,334 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:51:22,336 INFO L225 Difference]: With dead ends: 285 [2023-11-29 03:51:22,336 INFO L226 Difference]: Without dead ends: 284 [2023-11-29 03:51:22,336 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-29 03:51:22,336 INFO L413 NwaCegarLoop]: 132 mSDtfsCounter, 92 mSDsluCounter, 109 mSDsCounter, 0 mSdLazyCounter, 70 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 96 SdHoareTripleChecker+Valid, 241 SdHoareTripleChecker+Invalid, 73 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 70 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-29 03:51:22,337 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [96 Valid, 241 Invalid, 73 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 70 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-29 03:51:22,337 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 284 states. [2023-11-29 03:51:22,359 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 284 to 256. [2023-11-29 03:51:22,359 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 256 states, 186 states have (on average 1.60752688172043) internal successors, (299), 235 states have internal predecessors, (299), 18 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2023-11-29 03:51:22,360 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 256 states to 256 states and 335 transitions. [2023-11-29 03:51:22,360 INFO L78 Accepts]: Start accepts. Automaton has 256 states and 335 transitions. Word has length 45 [2023-11-29 03:51:22,361 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:51:22,361 INFO L495 AbstractCegarLoop]: Abstraction has 256 states and 335 transitions. [2023-11-29 03:51:22,361 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 8.666666666666666) internal successors, (26), 4 states have internal predecessors, (26), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-11-29 03:51:22,361 INFO L276 IsEmpty]: Start isEmpty. Operand 256 states and 335 transitions. [2023-11-29 03:51:22,362 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2023-11-29 03:51:22,363 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:51:22,363 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:51:22,368 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0345f207-eb94-43c0-b5d4-be7362f6a67e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Ended with exit code 0 [2023-11-29 03:51:22,564 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22,24 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0345f207-eb94-43c0-b5d4-be7362f6a67e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:51:22,564 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2023-11-29 03:51:22,564 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:51:22,564 INFO L85 PathProgramCache]: Analyzing trace with hash -2139771580, now seen corresponding path program 1 times [2023-11-29 03:51:22,564 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:51:22,564 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1399510927] [2023-11-29 03:51:22,565 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:51:22,565 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:51:22,572 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 03:51:22,572 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1143848297] [2023-11-29 03:51:22,572 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:51:22,572 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:51:22,572 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0345f207-eb94-43c0-b5d4-be7362f6a67e/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:51:22,573 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0345f207-eb94-43c0-b5d4-be7362f6a67e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:51:22,575 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0345f207-eb94-43c0-b5d4-be7362f6a67e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Waiting until timeout for monitored process [2023-11-29 03:51:22,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:51:22,629 INFO L262 TraceCheckSpWp]: Trace formula consists of 122 conjuncts, 13 conjunts are in the unsatisfiable core [2023-11-29 03:51:22,630 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:51:22,779 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 3 proven. 13 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-11-29 03:51:22,779 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 03:51:22,962 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:51:22,963 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1399510927] [2023-11-29 03:51:22,963 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 03:51:22,963 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1143848297] [2023-11-29 03:51:22,963 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1143848297] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 03:51:22,963 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 03:51:22,963 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2023-11-29 03:51:22,963 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1732184989] [2023-11-29 03:51:22,963 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 03:51:22,964 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-29 03:51:22,964 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:51:22,964 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-29 03:51:22,964 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2023-11-29 03:51:22,965 INFO L87 Difference]: Start difference. First operand 256 states and 335 transitions. Second operand has 8 states, 7 states have (on average 4.428571428571429) internal successors, (31), 7 states have internal predecessors, (31), 3 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 3 states have call successors, (4) [2023-11-29 03:51:23,278 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:51:23,278 INFO L93 Difference]: Finished difference Result 329 states and 361 transitions. [2023-11-29 03:51:23,278 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-29 03:51:23,279 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 4.428571428571429) internal successors, (31), 7 states have internal predecessors, (31), 3 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 3 states have call successors, (4) Word has length 45 [2023-11-29 03:51:23,279 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:51:23,281 INFO L225 Difference]: With dead ends: 329 [2023-11-29 03:51:23,281 INFO L226 Difference]: Without dead ends: 327 [2023-11-29 03:51:23,281 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 59 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=44, Invalid=112, Unknown=0, NotChecked=0, Total=156 [2023-11-29 03:51:23,282 INFO L413 NwaCegarLoop]: 139 mSDtfsCounter, 378 mSDsluCounter, 439 mSDsCounter, 0 mSdLazyCounter, 270 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 390 SdHoareTripleChecker+Valid, 578 SdHoareTripleChecker+Invalid, 286 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 270 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-29 03:51:23,282 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [390 Valid, 578 Invalid, 286 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 270 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-29 03:51:23,283 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 327 states. [2023-11-29 03:51:23,315 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 327 to 257. [2023-11-29 03:51:23,315 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 257 states, 187 states have (on average 1.5989304812834224) internal successors, (299), 236 states have internal predecessors, (299), 18 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2023-11-29 03:51:23,317 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 257 states to 257 states and 335 transitions. [2023-11-29 03:51:23,317 INFO L78 Accepts]: Start accepts. Automaton has 257 states and 335 transitions. Word has length 45 [2023-11-29 03:51:23,317 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:51:23,317 INFO L495 AbstractCegarLoop]: Abstraction has 257 states and 335 transitions. [2023-11-29 03:51:23,318 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 4.428571428571429) internal successors, (31), 7 states have internal predecessors, (31), 3 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 3 states have call successors, (4) [2023-11-29 03:51:23,318 INFO L276 IsEmpty]: Start isEmpty. Operand 257 states and 335 transitions. [2023-11-29 03:51:23,318 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2023-11-29 03:51:23,318 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:51:23,319 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:51:23,325 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0345f207-eb94-43c0-b5d4-be7362f6a67e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Forceful destruction successful, exit code 0 [2023-11-29 03:51:23,519 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0345f207-eb94-43c0-b5d4-be7362f6a67e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable23 [2023-11-29 03:51:23,519 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2023-11-29 03:51:23,520 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:51:23,520 INFO L85 PathProgramCache]: Analyzing trace with hash -1908409455, now seen corresponding path program 1 times [2023-11-29 03:51:23,520 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:51:23,520 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1400899884] [2023-11-29 03:51:23,520 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:51:23,520 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:51:23,527 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 03:51:23,528 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [55562164] [2023-11-29 03:51:23,528 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:51:23,528 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:51:23,528 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0345f207-eb94-43c0-b5d4-be7362f6a67e/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:51:23,529 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0345f207-eb94-43c0-b5d4-be7362f6a67e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:51:23,531 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0345f207-eb94-43c0-b5d4-be7362f6a67e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Waiting until timeout for monitored process [2023-11-29 03:51:23,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:51:23,582 INFO L262 TraceCheckSpWp]: Trace formula consists of 123 conjuncts, 14 conjunts are in the unsatisfiable core [2023-11-29 03:51:23,584 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:51:23,770 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 3 proven. 13 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-11-29 03:51:23,771 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 03:51:24,369 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:51:24,369 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1400899884] [2023-11-29 03:51:24,369 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 03:51:24,370 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [55562164] [2023-11-29 03:51:24,370 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [55562164] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 03:51:24,370 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 03:51:24,370 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2023-11-29 03:51:24,370 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [81481007] [2023-11-29 03:51:24,370 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 03:51:24,370 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-29 03:51:24,371 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:51:24,371 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-29 03:51:24,371 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=115, Unknown=0, NotChecked=0, Total=156 [2023-11-29 03:51:24,371 INFO L87 Difference]: Start difference. First operand 257 states and 335 transitions. Second operand has 9 states, 8 states have (on average 4.0) internal successors, (32), 8 states have internal predecessors, (32), 3 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 3 states have call successors, (4) [2023-11-29 03:51:24,887 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:51:24,887 INFO L93 Difference]: Finished difference Result 327 states and 359 transitions. [2023-11-29 03:51:24,888 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-29 03:51:24,888 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 4.0) internal successors, (32), 8 states have internal predecessors, (32), 3 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 3 states have call successors, (4) Word has length 46 [2023-11-29 03:51:24,888 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:51:24,890 INFO L225 Difference]: With dead ends: 327 [2023-11-29 03:51:24,890 INFO L226 Difference]: Without dead ends: 326 [2023-11-29 03:51:24,890 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 59 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2023-11-29 03:51:24,891 INFO L413 NwaCegarLoop]: 74 mSDtfsCounter, 527 mSDsluCounter, 337 mSDsCounter, 0 mSdLazyCounter, 358 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 535 SdHoareTripleChecker+Valid, 411 SdHoareTripleChecker+Invalid, 389 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 358 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-29 03:51:24,891 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [535 Valid, 411 Invalid, 389 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 358 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-29 03:51:24,892 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 326 states. [2023-11-29 03:51:24,914 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 326 to 257. [2023-11-29 03:51:24,915 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 257 states, 187 states have (on average 1.588235294117647) internal successors, (297), 236 states have internal predecessors, (297), 18 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2023-11-29 03:51:24,916 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 257 states to 257 states and 333 transitions. [2023-11-29 03:51:24,916 INFO L78 Accepts]: Start accepts. Automaton has 257 states and 333 transitions. Word has length 46 [2023-11-29 03:51:24,916 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:51:24,916 INFO L495 AbstractCegarLoop]: Abstraction has 257 states and 333 transitions. [2023-11-29 03:51:24,916 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 4.0) internal successors, (32), 8 states have internal predecessors, (32), 3 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 3 states have call successors, (4) [2023-11-29 03:51:24,916 INFO L276 IsEmpty]: Start isEmpty. Operand 257 states and 333 transitions. [2023-11-29 03:51:24,917 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2023-11-29 03:51:24,917 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:51:24,917 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:51:24,923 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0345f207-eb94-43c0-b5d4-be7362f6a67e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Ended with exit code 0 [2023-11-29 03:51:25,117 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0345f207-eb94-43c0-b5d4-be7362f6a67e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable24 [2023-11-29 03:51:25,118 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2023-11-29 03:51:25,118 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:51:25,118 INFO L85 PathProgramCache]: Analyzing trace with hash 968849126, now seen corresponding path program 1 times [2023-11-29 03:51:25,118 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:51:25,118 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [654371803] [2023-11-29 03:51:25,118 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:51:25,118 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:51:25,126 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 03:51:25,126 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [733184031] [2023-11-29 03:51:25,127 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:51:25,127 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:51:25,127 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0345f207-eb94-43c0-b5d4-be7362f6a67e/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:51:25,128 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0345f207-eb94-43c0-b5d4-be7362f6a67e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:51:25,129 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0345f207-eb94-43c0-b5d4-be7362f6a67e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Waiting until timeout for monitored process [2023-11-29 03:51:25,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:51:25,179 INFO L262 TraceCheckSpWp]: Trace formula consists of 124 conjuncts, 14 conjunts are in the unsatisfiable core [2023-11-29 03:51:25,181 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:51:25,352 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 3 proven. 13 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-11-29 03:51:25,352 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 03:51:26,161 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:51:26,161 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [654371803] [2023-11-29 03:51:26,161 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 03:51:26,161 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [733184031] [2023-11-29 03:51:26,161 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [733184031] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 03:51:26,161 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 03:51:26,161 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2023-11-29 03:51:26,161 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1405577152] [2023-11-29 03:51:26,161 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 03:51:26,162 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-29 03:51:26,162 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:51:26,162 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-29 03:51:26,162 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=115, Unknown=0, NotChecked=0, Total=156 [2023-11-29 03:51:26,162 INFO L87 Difference]: Start difference. First operand 257 states and 333 transitions. Second operand has 9 states, 8 states have (on average 4.125) internal successors, (33), 8 states have internal predecessors, (33), 3 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 3 states have call successors, (4) [2023-11-29 03:51:26,516 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:51:26,516 INFO L93 Difference]: Finished difference Result 326 states and 357 transitions. [2023-11-29 03:51:26,516 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-29 03:51:26,517 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 4.125) internal successors, (33), 8 states have internal predecessors, (33), 3 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 3 states have call successors, (4) Word has length 47 [2023-11-29 03:51:26,517 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:51:26,518 INFO L225 Difference]: With dead ends: 326 [2023-11-29 03:51:26,518 INFO L226 Difference]: Without dead ends: 325 [2023-11-29 03:51:26,519 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 61 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2023-11-29 03:51:26,519 INFO L413 NwaCegarLoop]: 134 mSDtfsCounter, 477 mSDsluCounter, 467 mSDsCounter, 0 mSdLazyCounter, 380 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 489 SdHoareTripleChecker+Valid, 601 SdHoareTripleChecker+Invalid, 403 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 380 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-29 03:51:26,519 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [489 Valid, 601 Invalid, 403 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 380 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-29 03:51:26,520 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 325 states. [2023-11-29 03:51:26,541 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 325 to 257. [2023-11-29 03:51:26,542 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 257 states, 187 states have (on average 1.5775401069518717) internal successors, (295), 236 states have internal predecessors, (295), 18 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2023-11-29 03:51:26,543 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 257 states to 257 states and 331 transitions. [2023-11-29 03:51:26,543 INFO L78 Accepts]: Start accepts. Automaton has 257 states and 331 transitions. Word has length 47 [2023-11-29 03:51:26,543 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:51:26,543 INFO L495 AbstractCegarLoop]: Abstraction has 257 states and 331 transitions. [2023-11-29 03:51:26,543 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 4.125) internal successors, (33), 8 states have internal predecessors, (33), 3 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 3 states have call successors, (4) [2023-11-29 03:51:26,543 INFO L276 IsEmpty]: Start isEmpty. Operand 257 states and 331 transitions. [2023-11-29 03:51:26,544 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2023-11-29 03:51:26,544 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:51:26,544 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:51:26,549 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0345f207-eb94-43c0-b5d4-be7362f6a67e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Ended with exit code 0 [2023-11-29 03:51:26,744 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 27 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0345f207-eb94-43c0-b5d4-be7362f6a67e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable25 [2023-11-29 03:51:26,745 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2023-11-29 03:51:26,745 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:51:26,745 INFO L85 PathProgramCache]: Analyzing trace with hash -770088908, now seen corresponding path program 1 times [2023-11-29 03:51:26,745 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:51:26,745 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1011271914] [2023-11-29 03:51:26,745 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:51:26,746 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:51:26,753 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 03:51:26,754 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1517622868] [2023-11-29 03:51:26,754 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:51:26,754 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:51:26,754 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0345f207-eb94-43c0-b5d4-be7362f6a67e/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:51:26,755 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0345f207-eb94-43c0-b5d4-be7362f6a67e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:51:26,756 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0345f207-eb94-43c0-b5d4-be7362f6a67e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Waiting until timeout for monitored process [2023-11-29 03:51:26,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:51:26,809 INFO L262 TraceCheckSpWp]: Trace formula consists of 117 conjuncts, 9 conjunts are in the unsatisfiable core [2023-11-29 03:51:26,810 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:51:26,922 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 3 proven. 6 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2023-11-29 03:51:26,922 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 03:51:27,029 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 3 proven. 6 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2023-11-29 03:51:27,029 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:51:27,029 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1011271914] [2023-11-29 03:51:27,029 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 03:51:27,030 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1517622868] [2023-11-29 03:51:27,030 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1517622868] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 03:51:27,030 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 03:51:27,030 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 9 [2023-11-29 03:51:27,030 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1573533262] [2023-11-29 03:51:27,030 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 03:51:27,030 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-29 03:51:27,030 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:51:27,031 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-29 03:51:27,031 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2023-11-29 03:51:27,031 INFO L87 Difference]: Start difference. First operand 257 states and 331 transitions. Second operand has 10 states, 9 states have (on average 5.555555555555555) internal successors, (50), 8 states have internal predecessors, (50), 5 states have call successors, (10), 1 states have call predecessors, (10), 2 states have return successors, (11), 5 states have call predecessors, (11), 5 states have call successors, (11) [2023-11-29 03:51:28,286 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:51:28,286 INFO L93 Difference]: Finished difference Result 378 states and 456 transitions. [2023-11-29 03:51:28,287 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-29 03:51:28,287 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 5.555555555555555) internal successors, (50), 8 states have internal predecessors, (50), 5 states have call successors, (10), 1 states have call predecessors, (10), 2 states have return successors, (11), 5 states have call predecessors, (11), 5 states have call successors, (11) Word has length 51 [2023-11-29 03:51:28,287 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:51:28,289 INFO L225 Difference]: With dead ends: 378 [2023-11-29 03:51:28,290 INFO L226 Difference]: Without dead ends: 377 [2023-11-29 03:51:28,290 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 105 GetRequests, 91 SyntacticMatches, 1 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=55, Invalid=155, Unknown=0, NotChecked=0, Total=210 [2023-11-29 03:51:28,291 INFO L413 NwaCegarLoop]: 76 mSDtfsCounter, 627 mSDsluCounter, 348 mSDsCounter, 0 mSdLazyCounter, 392 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 629 SdHoareTripleChecker+Valid, 424 SdHoareTripleChecker+Invalid, 430 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 392 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2023-11-29 03:51:28,291 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [629 Valid, 424 Invalid, 430 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 392 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2023-11-29 03:51:28,292 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 377 states. [2023-11-29 03:51:28,338 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 377 to 305. [2023-11-29 03:51:28,339 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 305 states, 229 states have (on average 1.5283842794759825) internal successors, (350), 278 states have internal predecessors, (350), 24 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2023-11-29 03:51:28,341 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 305 states to 305 states and 398 transitions. [2023-11-29 03:51:28,341 INFO L78 Accepts]: Start accepts. Automaton has 305 states and 398 transitions. Word has length 51 [2023-11-29 03:51:28,341 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:51:28,341 INFO L495 AbstractCegarLoop]: Abstraction has 305 states and 398 transitions. [2023-11-29 03:51:28,341 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 5.555555555555555) internal successors, (50), 8 states have internal predecessors, (50), 5 states have call successors, (10), 1 states have call predecessors, (10), 2 states have return successors, (11), 5 states have call predecessors, (11), 5 states have call successors, (11) [2023-11-29 03:51:28,341 INFO L276 IsEmpty]: Start isEmpty. Operand 305 states and 398 transitions. [2023-11-29 03:51:28,342 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2023-11-29 03:51:28,342 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:51:28,342 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:51:28,347 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0345f207-eb94-43c0-b5d4-be7362f6a67e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Ended with exit code 0 [2023-11-29 03:51:28,543 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 28 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0345f207-eb94-43c0-b5d4-be7362f6a67e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2023-11-29 03:51:28,543 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2023-11-29 03:51:28,543 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:51:28,543 INFO L85 PathProgramCache]: Analyzing trace with hash 1897047733, now seen corresponding path program 1 times [2023-11-29 03:51:28,543 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:51:28,543 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [714065364] [2023-11-29 03:51:28,543 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:51:28,543 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:51:28,550 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 03:51:28,550 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1352910538] [2023-11-29 03:51:28,550 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:51:28,551 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:51:28,551 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0345f207-eb94-43c0-b5d4-be7362f6a67e/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:51:28,552 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0345f207-eb94-43c0-b5d4-be7362f6a67e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:51:28,553 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0345f207-eb94-43c0-b5d4-be7362f6a67e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Waiting until timeout for monitored process [2023-11-29 03:51:28,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:51:28,601 INFO L262 TraceCheckSpWp]: Trace formula consists of 118 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-29 03:51:28,602 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:51:28,670 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2023-11-29 03:51:28,670 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 03:51:28,670 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:51:28,671 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [714065364] [2023-11-29 03:51:28,671 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 03:51:28,671 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1352910538] [2023-11-29 03:51:28,671 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1352910538] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:51:28,671 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:51:28,671 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-29 03:51:28,671 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1189553168] [2023-11-29 03:51:28,671 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:51:28,671 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-29 03:51:28,672 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:51:28,672 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-29 03:51:28,672 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-11-29 03:51:28,672 INFO L87 Difference]: Start difference. First operand 305 states and 398 transitions. Second operand has 7 states, 6 states have (on average 5.166666666666667) internal successors, (31), 6 states have internal predecessors, (31), 2 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (6), 3 states have call predecessors, (6), 2 states have call successors, (6) [2023-11-29 03:51:29,068 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:51:29,068 INFO L93 Difference]: Finished difference Result 370 states and 452 transitions. [2023-11-29 03:51:29,069 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-29 03:51:29,069 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 5.166666666666667) internal successors, (31), 6 states have internal predecessors, (31), 2 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (6), 3 states have call predecessors, (6), 2 states have call successors, (6) Word has length 52 [2023-11-29 03:51:29,069 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:51:29,071 INFO L225 Difference]: With dead ends: 370 [2023-11-29 03:51:29,071 INFO L226 Difference]: Without dead ends: 369 [2023-11-29 03:51:29,072 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2023-11-29 03:51:29,072 INFO L413 NwaCegarLoop]: 77 mSDtfsCounter, 247 mSDsluCounter, 317 mSDsCounter, 0 mSdLazyCounter, 343 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 251 SdHoareTripleChecker+Valid, 394 SdHoareTripleChecker+Invalid, 354 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 343 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-29 03:51:29,072 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [251 Valid, 394 Invalid, 354 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 343 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-29 03:51:29,073 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 369 states. [2023-11-29 03:51:29,105 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 369 to 335. [2023-11-29 03:51:29,105 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 335 states, 255 states have (on average 1.5176470588235293) internal successors, (387), 304 states have internal predecessors, (387), 28 states have call successors, (28), 2 states have call predecessors, (28), 2 states have return successors, (28), 28 states have call predecessors, (28), 28 states have call successors, (28) [2023-11-29 03:51:29,107 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 335 states to 335 states and 443 transitions. [2023-11-29 03:51:29,107 INFO L78 Accepts]: Start accepts. Automaton has 335 states and 443 transitions. Word has length 52 [2023-11-29 03:51:29,107 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:51:29,107 INFO L495 AbstractCegarLoop]: Abstraction has 335 states and 443 transitions. [2023-11-29 03:51:29,107 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 5.166666666666667) internal successors, (31), 6 states have internal predecessors, (31), 2 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (6), 3 states have call predecessors, (6), 2 states have call successors, (6) [2023-11-29 03:51:29,107 INFO L276 IsEmpty]: Start isEmpty. Operand 335 states and 443 transitions. [2023-11-29 03:51:29,108 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2023-11-29 03:51:29,108 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:51:29,108 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:51:29,113 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0345f207-eb94-43c0-b5d4-be7362f6a67e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Ended with exit code 0 [2023-11-29 03:51:29,308 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 29 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0345f207-eb94-43c0-b5d4-be7362f6a67e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable27 [2023-11-29 03:51:29,309 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2023-11-29 03:51:29,309 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:51:29,309 INFO L85 PathProgramCache]: Analyzing trace with hash -1321062314, now seen corresponding path program 1 times [2023-11-29 03:51:29,309 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:51:29,309 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2131531226] [2023-11-29 03:51:29,309 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:51:29,309 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:51:29,316 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 03:51:29,316 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1018744411] [2023-11-29 03:51:29,317 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:51:29,317 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:51:29,317 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0345f207-eb94-43c0-b5d4-be7362f6a67e/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:51:29,318 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0345f207-eb94-43c0-b5d4-be7362f6a67e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:51:29,319 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0345f207-eb94-43c0-b5d4-be7362f6a67e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Waiting until timeout for monitored process [2023-11-29 03:51:29,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:51:29,361 INFO L262 TraceCheckSpWp]: Trace formula consists of 119 conjuncts, 9 conjunts are in the unsatisfiable core [2023-11-29 03:51:29,363 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:51:29,422 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 6 proven. 3 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2023-11-29 03:51:29,422 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 03:51:29,466 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:51:29,466 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2131531226] [2023-11-29 03:51:29,466 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 03:51:29,466 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1018744411] [2023-11-29 03:51:29,466 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1018744411] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 03:51:29,466 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 03:51:29,466 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2023-11-29 03:51:29,466 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [563912389] [2023-11-29 03:51:29,466 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 03:51:29,467 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-29 03:51:29,467 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:51:29,467 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-29 03:51:29,467 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2023-11-29 03:51:29,467 INFO L87 Difference]: Start difference. First operand 335 states and 443 transitions. Second operand has 8 states, 7 states have (on average 4.571428571428571) internal successors, (32), 7 states have internal predecessors, (32), 3 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2023-11-29 03:51:30,431 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:51:30,431 INFO L93 Difference]: Finished difference Result 365 states and 447 transitions. [2023-11-29 03:51:30,431 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-29 03:51:30,431 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 4.571428571428571) internal successors, (32), 7 states have internal predecessors, (32), 3 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) Word has length 53 [2023-11-29 03:51:30,432 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:51:30,433 INFO L225 Difference]: With dead ends: 365 [2023-11-29 03:51:30,433 INFO L226 Difference]: Without dead ends: 364 [2023-11-29 03:51:30,434 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=44, Invalid=138, Unknown=0, NotChecked=0, Total=182 [2023-11-29 03:51:30,434 INFO L413 NwaCegarLoop]: 75 mSDtfsCounter, 315 mSDsluCounter, 419 mSDsCounter, 0 mSdLazyCounter, 422 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 319 SdHoareTripleChecker+Valid, 494 SdHoareTripleChecker+Invalid, 439 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 422 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-11-29 03:51:30,434 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [319 Valid, 494 Invalid, 439 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 422 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-11-29 03:51:30,435 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 364 states. [2023-11-29 03:51:30,468 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 364 to 335. [2023-11-29 03:51:30,468 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 335 states, 255 states have (on average 1.5137254901960784) internal successors, (386), 304 states have internal predecessors, (386), 28 states have call successors, (28), 2 states have call predecessors, (28), 2 states have return successors, (28), 28 states have call predecessors, (28), 28 states have call successors, (28) [2023-11-29 03:51:30,469 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 335 states to 335 states and 442 transitions. [2023-11-29 03:51:30,470 INFO L78 Accepts]: Start accepts. Automaton has 335 states and 442 transitions. Word has length 53 [2023-11-29 03:51:30,470 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:51:30,470 INFO L495 AbstractCegarLoop]: Abstraction has 335 states and 442 transitions. [2023-11-29 03:51:30,470 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 4.571428571428571) internal successors, (32), 7 states have internal predecessors, (32), 3 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2023-11-29 03:51:30,470 INFO L276 IsEmpty]: Start isEmpty. Operand 335 states and 442 transitions. [2023-11-29 03:51:30,470 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2023-11-29 03:51:30,471 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:51:30,471 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:51:30,476 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0345f207-eb94-43c0-b5d4-be7362f6a67e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Ended with exit code 0 [2023-11-29 03:51:30,671 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 30 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0345f207-eb94-43c0-b5d4-be7362f6a67e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable28 [2023-11-29 03:51:30,671 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2023-11-29 03:51:30,672 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:51:30,672 INFO L85 PathProgramCache]: Analyzing trace with hash -443404407, now seen corresponding path program 1 times [2023-11-29 03:51:30,672 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:51:30,672 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1176644595] [2023-11-29 03:51:30,672 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:51:30,672 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:51:30,678 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 03:51:30,678 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1718068603] [2023-11-29 03:51:30,678 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:51:30,679 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:51:30,679 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0345f207-eb94-43c0-b5d4-be7362f6a67e/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:51:30,680 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0345f207-eb94-43c0-b5d4-be7362f6a67e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:51:30,680 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0345f207-eb94-43c0-b5d4-be7362f6a67e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Waiting until timeout for monitored process [2023-11-29 03:51:30,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:51:30,736 INFO L262 TraceCheckSpWp]: Trace formula consists of 134 conjuncts, 16 conjunts are in the unsatisfiable core [2023-11-29 03:51:30,738 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:51:30,952 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 3 proven. 13 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-11-29 03:51:30,952 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 03:51:43,330 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:51:43,330 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1176644595] [2023-11-29 03:51:43,330 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 03:51:43,330 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1718068603] [2023-11-29 03:51:43,330 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1718068603] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 03:51:43,330 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 03:51:43,330 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2023-11-29 03:51:43,331 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [97737955] [2023-11-29 03:51:43,331 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 03:51:43,331 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-29 03:51:43,331 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:51:43,331 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-29 03:51:43,332 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=111, Unknown=3, NotChecked=0, Total=156 [2023-11-29 03:51:43,332 INFO L87 Difference]: Start difference. First operand 335 states and 442 transitions. Second operand has 9 states, 8 states have (on average 4.625) internal successors, (37), 8 states have internal predecessors, (37), 4 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 3 states have call predecessors, (5), 4 states have call successors, (5) [2023-11-29 03:51:43,716 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:51:43,716 INFO L93 Difference]: Finished difference Result 409 states and 474 transitions. [2023-11-29 03:51:43,716 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-29 03:51:43,716 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 4.625) internal successors, (37), 8 states have internal predecessors, (37), 4 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 3 states have call predecessors, (5), 4 states have call successors, (5) Word has length 53 [2023-11-29 03:51:43,717 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:51:43,719 INFO L225 Difference]: With dead ends: 409 [2023-11-29 03:51:43,719 INFO L226 Difference]: Without dead ends: 407 [2023-11-29 03:51:43,720 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 85 GetRequests, 73 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 12.3s TimeCoverageRelationStatistics Valid=46, Invalid=133, Unknown=3, NotChecked=0, Total=182 [2023-11-29 03:51:43,720 INFO L413 NwaCegarLoop]: 135 mSDtfsCounter, 532 mSDsluCounter, 513 mSDsCounter, 0 mSdLazyCounter, 379 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 543 SdHoareTripleChecker+Valid, 648 SdHoareTripleChecker+Invalid, 397 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 379 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-29 03:51:43,721 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [543 Valid, 648 Invalid, 397 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 379 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-29 03:51:43,721 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 407 states. [2023-11-29 03:51:43,776 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 407 to 336. [2023-11-29 03:51:43,776 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 336 states, 256 states have (on average 1.5) internal successors, (384), 305 states have internal predecessors, (384), 28 states have call successors, (28), 2 states have call predecessors, (28), 2 states have return successors, (28), 28 states have call predecessors, (28), 28 states have call successors, (28) [2023-11-29 03:51:43,778 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 336 states to 336 states and 440 transitions. [2023-11-29 03:51:43,778 INFO L78 Accepts]: Start accepts. Automaton has 336 states and 440 transitions. Word has length 53 [2023-11-29 03:51:43,778 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:51:43,778 INFO L495 AbstractCegarLoop]: Abstraction has 336 states and 440 transitions. [2023-11-29 03:51:43,778 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 4.625) internal successors, (37), 8 states have internal predecessors, (37), 4 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 3 states have call predecessors, (5), 4 states have call successors, (5) [2023-11-29 03:51:43,779 INFO L276 IsEmpty]: Start isEmpty. Operand 336 states and 440 transitions. [2023-11-29 03:51:43,779 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2023-11-29 03:51:43,779 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:51:43,779 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:51:43,784 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0345f207-eb94-43c0-b5d4-be7362f6a67e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Ended with exit code 0 [2023-11-29 03:51:43,980 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,31 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0345f207-eb94-43c0-b5d4-be7362f6a67e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:51:43,980 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2023-11-29 03:51:43,980 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:51:43,980 INFO L85 PathProgramCache]: Analyzing trace with hash 1996741335, now seen corresponding path program 1 times [2023-11-29 03:51:43,980 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:51:43,981 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [597641344] [2023-11-29 03:51:43,981 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:51:43,981 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:51:43,988 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 03:51:43,988 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1828129629] [2023-11-29 03:51:43,988 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:51:43,988 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:51:43,989 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0345f207-eb94-43c0-b5d4-be7362f6a67e/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:51:43,989 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0345f207-eb94-43c0-b5d4-be7362f6a67e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:51:43,990 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0345f207-eb94-43c0-b5d4-be7362f6a67e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Waiting until timeout for monitored process [2023-11-29 03:51:44,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:51:44,046 INFO L262 TraceCheckSpWp]: Trace formula consists of 120 conjuncts, 16 conjunts are in the unsatisfiable core [2023-11-29 03:51:44,047 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:51:44,276 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2023-11-29 03:51:44,276 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 03:51:48,428 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:51:48,428 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [597641344] [2023-11-29 03:51:48,428 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 03:51:48,428 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1828129629] [2023-11-29 03:51:48,429 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1828129629] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 03:51:48,429 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 03:51:48,429 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2023-11-29 03:51:48,429 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [650096158] [2023-11-29 03:51:48,429 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 03:51:48,429 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-29 03:51:48,429 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:51:48,430 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-29 03:51:48,430 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=86, Unknown=1, NotChecked=0, Total=110 [2023-11-29 03:51:48,430 INFO L87 Difference]: Start difference. First operand 336 states and 440 transitions. Second operand has 8 states, 7 states have (on average 4.714285714285714) internal successors, (33), 7 states have internal predecessors, (33), 4 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (6), 3 states have call predecessors, (6), 4 states have call successors, (6) [2023-11-29 03:51:48,914 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:51:48,915 INFO L93 Difference]: Finished difference Result 365 states and 444 transitions. [2023-11-29 03:51:48,915 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-29 03:51:48,915 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 4.714285714285714) internal successors, (33), 7 states have internal predecessors, (33), 4 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (6), 3 states have call predecessors, (6), 4 states have call successors, (6) Word has length 54 [2023-11-29 03:51:48,916 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:51:48,918 INFO L225 Difference]: With dead ends: 365 [2023-11-29 03:51:48,918 INFO L226 Difference]: Without dead ends: 364 [2023-11-29 03:51:48,918 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 89 GetRequests, 77 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 4.1s TimeCoverageRelationStatistics Valid=44, Invalid=137, Unknown=1, NotChecked=0, Total=182 [2023-11-29 03:51:48,919 INFO L413 NwaCegarLoop]: 57 mSDtfsCounter, 280 mSDsluCounter, 234 mSDsCounter, 0 mSdLazyCounter, 461 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 284 SdHoareTripleChecker+Valid, 291 SdHoareTripleChecker+Invalid, 475 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 461 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-29 03:51:48,919 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [284 Valid, 291 Invalid, 475 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 461 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-29 03:51:48,920 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 364 states. [2023-11-29 03:51:48,971 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 364 to 336. [2023-11-29 03:51:48,972 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 336 states, 256 states have (on average 1.49609375) internal successors, (383), 305 states have internal predecessors, (383), 28 states have call successors, (28), 2 states have call predecessors, (28), 2 states have return successors, (28), 28 states have call predecessors, (28), 28 states have call successors, (28) [2023-11-29 03:51:48,974 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 336 states to 336 states and 439 transitions. [2023-11-29 03:51:48,974 INFO L78 Accepts]: Start accepts. Automaton has 336 states and 439 transitions. Word has length 54 [2023-11-29 03:51:48,974 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:51:48,974 INFO L495 AbstractCegarLoop]: Abstraction has 336 states and 439 transitions. [2023-11-29 03:51:48,974 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 4.714285714285714) internal successors, (33), 7 states have internal predecessors, (33), 4 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (6), 3 states have call predecessors, (6), 4 states have call successors, (6) [2023-11-29 03:51:48,975 INFO L276 IsEmpty]: Start isEmpty. Operand 336 states and 439 transitions. [2023-11-29 03:51:48,975 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2023-11-29 03:51:48,975 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:51:48,975 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:51:48,980 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0345f207-eb94-43c0-b5d4-be7362f6a67e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Ended with exit code 0 [2023-11-29 03:51:49,176 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30,32 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0345f207-eb94-43c0-b5d4-be7362f6a67e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:51:49,176 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2023-11-29 03:51:49,176 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:51:49,176 INFO L85 PathProgramCache]: Analyzing trace with hash -860634637, now seen corresponding path program 1 times [2023-11-29 03:51:49,177 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:51:49,177 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [450262741] [2023-11-29 03:51:49,177 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:51:49,177 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:51:49,185 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 03:51:49,185 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1245990432] [2023-11-29 03:51:49,185 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:51:49,185 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:51:49,186 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0345f207-eb94-43c0-b5d4-be7362f6a67e/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:51:49,187 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0345f207-eb94-43c0-b5d4-be7362f6a67e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:51:49,188 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0345f207-eb94-43c0-b5d4-be7362f6a67e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (33)] Waiting until timeout for monitored process [2023-11-29 03:51:49,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:51:49,242 INFO L262 TraceCheckSpWp]: Trace formula consists of 135 conjuncts, 16 conjunts are in the unsatisfiable core [2023-11-29 03:51:49,244 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:51:49,418 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 3 proven. 13 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-11-29 03:51:49,418 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 03:51:57,853 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:51:57,854 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [450262741] [2023-11-29 03:51:57,854 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 03:51:57,854 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1245990432] [2023-11-29 03:51:57,854 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1245990432] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 03:51:57,854 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 03:51:57,854 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2023-11-29 03:51:57,854 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1239212551] [2023-11-29 03:51:57,854 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 03:51:57,854 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-29 03:51:57,854 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:51:57,855 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-29 03:51:57,855 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=112, Unknown=2, NotChecked=0, Total=156 [2023-11-29 03:51:57,855 INFO L87 Difference]: Start difference. First operand 336 states and 439 transitions. Second operand has 9 states, 8 states have (on average 4.75) internal successors, (38), 8 states have internal predecessors, (38), 4 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 3 states have call predecessors, (5), 4 states have call successors, (5) [2023-11-29 03:51:58,170 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:51:58,170 INFO L93 Difference]: Finished difference Result 409 states and 469 transitions. [2023-11-29 03:51:58,171 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-29 03:51:58,171 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 4.75) internal successors, (38), 8 states have internal predecessors, (38), 4 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 3 states have call predecessors, (5), 4 states have call successors, (5) Word has length 54 [2023-11-29 03:51:58,171 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:51:58,173 INFO L225 Difference]: With dead ends: 409 [2023-11-29 03:51:58,174 INFO L226 Difference]: Without dead ends: 407 [2023-11-29 03:51:58,174 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 75 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 8.4s TimeCoverageRelationStatistics Valid=57, Invalid=151, Unknown=2, NotChecked=0, Total=210 [2023-11-29 03:51:58,175 INFO L413 NwaCegarLoop]: 86 mSDtfsCounter, 386 mSDsluCounter, 381 mSDsCounter, 0 mSdLazyCounter, 300 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 397 SdHoareTripleChecker+Valid, 467 SdHoareTripleChecker+Invalid, 311 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 300 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-29 03:51:58,175 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [397 Valid, 467 Invalid, 311 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 300 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-29 03:51:58,176 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 407 states. [2023-11-29 03:51:58,219 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 407 to 337. [2023-11-29 03:51:58,220 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 337 states, 257 states have (on average 1.482490272373541) internal successors, (381), 306 states have internal predecessors, (381), 28 states have call successors, (28), 2 states have call predecessors, (28), 2 states have return successors, (28), 28 states have call predecessors, (28), 28 states have call successors, (28) [2023-11-29 03:51:58,221 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 337 states to 337 states and 437 transitions. [2023-11-29 03:51:58,221 INFO L78 Accepts]: Start accepts. Automaton has 337 states and 437 transitions. Word has length 54 [2023-11-29 03:51:58,221 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:51:58,221 INFO L495 AbstractCegarLoop]: Abstraction has 337 states and 437 transitions. [2023-11-29 03:51:58,222 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 4.75) internal successors, (38), 8 states have internal predecessors, (38), 4 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 3 states have call predecessors, (5), 4 states have call successors, (5) [2023-11-29 03:51:58,222 INFO L276 IsEmpty]: Start isEmpty. Operand 337 states and 437 transitions. [2023-11-29 03:51:58,222 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2023-11-29 03:51:58,222 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:51:58,222 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:51:58,228 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0345f207-eb94-43c0-b5d4-be7362f6a67e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (33)] Ended with exit code 0 [2023-11-29 03:51:58,423 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31,33 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0345f207-eb94-43c0-b5d4-be7362f6a67e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:51:58,423 INFO L420 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2023-11-29 03:51:58,423 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:51:58,423 INFO L85 PathProgramCache]: Analyzing trace with hash -909869877, now seen corresponding path program 1 times [2023-11-29 03:51:58,423 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:51:58,423 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [328837781] [2023-11-29 03:51:58,423 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:51:58,424 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:51:58,430 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 03:51:58,430 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [538001123] [2023-11-29 03:51:58,430 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:51:58,430 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:51:58,430 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0345f207-eb94-43c0-b5d4-be7362f6a67e/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:51:58,431 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0345f207-eb94-43c0-b5d4-be7362f6a67e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:51:58,432 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0345f207-eb94-43c0-b5d4-be7362f6a67e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (34)] Waiting until timeout for monitored process [2023-11-29 03:51:58,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:51:58,489 INFO L262 TraceCheckSpWp]: Trace formula consists of 136 conjuncts, 23 conjunts are in the unsatisfiable core [2023-11-29 03:51:58,491 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:51:58,798 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 6 proven. 10 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-11-29 03:51:58,798 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 03:52:06,936 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:52:06,936 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [328837781] [2023-11-29 03:52:06,936 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 03:52:06,936 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [538001123] [2023-11-29 03:52:06,936 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [538001123] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 03:52:06,937 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 03:52:06,937 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2023-11-29 03:52:06,937 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1028473284] [2023-11-29 03:52:06,937 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 03:52:06,937 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-11-29 03:52:06,937 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:52:06,938 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-11-29 03:52:06,938 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=341, Unknown=2, NotChecked=0, Total=420 [2023-11-29 03:52:06,938 INFO L87 Difference]: Start difference. First operand 337 states and 437 transitions. Second operand has 13 states, 11 states have (on average 3.5454545454545454) internal successors, (39), 11 states have internal predecessors, (39), 4 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 4 states have call predecessors, (5), 4 states have call successors, (5) [2023-11-29 03:52:08,320 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:52:08,320 INFO L93 Difference]: Finished difference Result 462 states and 550 transitions. [2023-11-29 03:52:08,321 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-11-29 03:52:08,321 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 11 states have (on average 3.5454545454545454) internal successors, (39), 11 states have internal predecessors, (39), 4 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 4 states have call predecessors, (5), 4 states have call successors, (5) Word has length 55 [2023-11-29 03:52:08,321 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:52:08,323 INFO L225 Difference]: With dead ends: 462 [2023-11-29 03:52:08,323 INFO L226 Difference]: Without dead ends: 461 [2023-11-29 03:52:08,324 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 96 GetRequests, 69 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 127 ImplicationChecksByTransitivity, 8.2s TimeCoverageRelationStatistics Valid=151, Invalid=659, Unknown=2, NotChecked=0, Total=812 [2023-11-29 03:52:08,324 INFO L413 NwaCegarLoop]: 81 mSDtfsCounter, 494 mSDsluCounter, 471 mSDsCounter, 0 mSdLazyCounter, 1213 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 498 SdHoareTripleChecker+Valid, 552 SdHoareTripleChecker+Invalid, 1241 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 1213 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2023-11-29 03:52:08,324 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [498 Valid, 552 Invalid, 1241 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 1213 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2023-11-29 03:52:08,325 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 461 states. [2023-11-29 03:52:08,359 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 461 to 334. [2023-11-29 03:52:08,360 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 334 states, 254 states have (on average 1.4881889763779528) internal successors, (378), 303 states have internal predecessors, (378), 28 states have call successors, (28), 2 states have call predecessors, (28), 2 states have return successors, (28), 28 states have call predecessors, (28), 28 states have call successors, (28) [2023-11-29 03:52:08,361 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 334 states to 334 states and 434 transitions. [2023-11-29 03:52:08,361 INFO L78 Accepts]: Start accepts. Automaton has 334 states and 434 transitions. Word has length 55 [2023-11-29 03:52:08,361 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:52:08,361 INFO L495 AbstractCegarLoop]: Abstraction has 334 states and 434 transitions. [2023-11-29 03:52:08,362 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 11 states have (on average 3.5454545454545454) internal successors, (39), 11 states have internal predecessors, (39), 4 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 4 states have call predecessors, (5), 4 states have call successors, (5) [2023-11-29 03:52:08,362 INFO L276 IsEmpty]: Start isEmpty. Operand 334 states and 434 transitions. [2023-11-29 03:52:08,362 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2023-11-29 03:52:08,362 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:52:08,362 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:52:08,368 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0345f207-eb94-43c0-b5d4-be7362f6a67e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (34)] Ended with exit code 0 [2023-11-29 03:52:08,563 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 34 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0345f207-eb94-43c0-b5d4-be7362f6a67e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable32 [2023-11-29 03:52:08,563 INFO L420 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2023-11-29 03:52:08,563 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:52:08,563 INFO L85 PathProgramCache]: Analyzing trace with hash 1858804981, now seen corresponding path program 1 times [2023-11-29 03:52:08,563 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:52:08,563 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [138277701] [2023-11-29 03:52:08,563 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:52:08,564 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:52:08,570 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 03:52:08,570 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2022637494] [2023-11-29 03:52:08,571 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:52:08,571 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:52:08,571 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0345f207-eb94-43c0-b5d4-be7362f6a67e/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:52:08,572 INFO L229 MonitoredProcess]: Starting monitored process 35 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0345f207-eb94-43c0-b5d4-be7362f6a67e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:52:08,573 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0345f207-eb94-43c0-b5d4-be7362f6a67e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (35)] Waiting until timeout for monitored process [2023-11-29 03:52:08,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:52:08,627 INFO L262 TraceCheckSpWp]: Trace formula consists of 137 conjuncts, 23 conjunts are in the unsatisfiable core [2023-11-29 03:52:08,629 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:52:08,935 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 6 proven. 10 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-11-29 03:52:08,935 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 03:52:18,271 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:52:18,271 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [138277701] [2023-11-29 03:52:18,271 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 03:52:18,271 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2022637494] [2023-11-29 03:52:18,271 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2022637494] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 03:52:18,271 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 03:52:18,271 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2023-11-29 03:52:18,271 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [331556191] [2023-11-29 03:52:18,271 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 03:52:18,272 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-11-29 03:52:18,272 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:52:18,272 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-11-29 03:52:18,272 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=341, Unknown=2, NotChecked=0, Total=420 [2023-11-29 03:52:18,272 INFO L87 Difference]: Start difference. First operand 334 states and 434 transitions. Second operand has 13 states, 11 states have (on average 3.6363636363636362) internal successors, (40), 11 states have internal predecessors, (40), 4 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 4 states have call predecessors, (5), 4 states have call successors, (5) [2023-11-29 03:52:20,216 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:52:20,216 INFO L93 Difference]: Finished difference Result 450 states and 537 transitions. [2023-11-29 03:52:20,217 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-11-29 03:52:20,217 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 11 states have (on average 3.6363636363636362) internal successors, (40), 11 states have internal predecessors, (40), 4 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 4 states have call predecessors, (5), 4 states have call successors, (5) Word has length 56 [2023-11-29 03:52:20,217 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:52:20,220 INFO L225 Difference]: With dead ends: 450 [2023-11-29 03:52:20,220 INFO L226 Difference]: Without dead ends: 449 [2023-11-29 03:52:20,221 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 98 GetRequests, 71 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 127 ImplicationChecksByTransitivity, 10.1s TimeCoverageRelationStatistics Valid=151, Invalid=659, Unknown=2, NotChecked=0, Total=812 [2023-11-29 03:52:20,222 INFO L413 NwaCegarLoop]: 81 mSDtfsCounter, 512 mSDsluCounter, 437 mSDsCounter, 0 mSdLazyCounter, 1205 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 516 SdHoareTripleChecker+Valid, 518 SdHoareTripleChecker+Invalid, 1235 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 1205 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2023-11-29 03:52:20,222 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [516 Valid, 518 Invalid, 1235 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 1205 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2023-11-29 03:52:20,223 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 449 states. [2023-11-29 03:52:20,279 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 449 to 386. [2023-11-29 03:52:20,279 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 386 states, 300 states have (on average 1.4866666666666666) internal successors, (446), 349 states have internal predecessors, (446), 34 states have call successors, (34), 2 states have call predecessors, (34), 2 states have return successors, (34), 34 states have call predecessors, (34), 34 states have call successors, (34) [2023-11-29 03:52:20,281 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 386 states to 386 states and 514 transitions. [2023-11-29 03:52:20,281 INFO L78 Accepts]: Start accepts. Automaton has 386 states and 514 transitions. Word has length 56 [2023-11-29 03:52:20,281 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:52:20,281 INFO L495 AbstractCegarLoop]: Abstraction has 386 states and 514 transitions. [2023-11-29 03:52:20,281 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 11 states have (on average 3.6363636363636362) internal successors, (40), 11 states have internal predecessors, (40), 4 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 4 states have call predecessors, (5), 4 states have call successors, (5) [2023-11-29 03:52:20,281 INFO L276 IsEmpty]: Start isEmpty. Operand 386 states and 514 transitions. [2023-11-29 03:52:20,282 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2023-11-29 03:52:20,282 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:52:20,282 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:52:20,287 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0345f207-eb94-43c0-b5d4-be7362f6a67e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (35)] Ended with exit code 0 [2023-11-29 03:52:20,482 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 35 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0345f207-eb94-43c0-b5d4-be7362f6a67e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable33 [2023-11-29 03:52:20,483 INFO L420 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2023-11-29 03:52:20,483 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:52:20,483 INFO L85 PathProgramCache]: Analyzing trace with hash 1788379661, now seen corresponding path program 1 times [2023-11-29 03:52:20,483 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:52:20,484 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1243076779] [2023-11-29 03:52:20,484 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:52:20,484 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:52:20,493 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 03:52:20,494 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1876029967] [2023-11-29 03:52:20,494 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:52:20,494 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:52:20,494 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0345f207-eb94-43c0-b5d4-be7362f6a67e/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:52:20,496 INFO L229 MonitoredProcess]: Starting monitored process 36 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0345f207-eb94-43c0-b5d4-be7362f6a67e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:52:20,498 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0345f207-eb94-43c0-b5d4-be7362f6a67e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (36)] Waiting until timeout for monitored process [2023-11-29 03:52:20,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:52:20,558 INFO L262 TraceCheckSpWp]: Trace formula consists of 138 conjuncts, 12 conjunts are in the unsatisfiable core [2023-11-29 03:52:20,560 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:52:20,733 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 6 proven. 7 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2023-11-29 03:52:20,733 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 03:52:20,813 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:52:20,813 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1243076779] [2023-11-29 03:52:20,814 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 03:52:20,814 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1876029967] [2023-11-29 03:52:20,814 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1876029967] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 03:52:20,814 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 03:52:20,814 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2023-11-29 03:52:20,814 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1076608719] [2023-11-29 03:52:20,814 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 03:52:20,815 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-29 03:52:20,815 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:52:20,815 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-29 03:52:20,816 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2023-11-29 03:52:20,816 INFO L87 Difference]: Start difference. First operand 386 states and 514 transitions. Second operand has 9 states, 8 states have (on average 5.125) internal successors, (41), 8 states have internal predecessors, (41), 3 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) [2023-11-29 03:52:22,460 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:52:22,461 INFO L93 Difference]: Finished difference Result 467 states and 554 transitions. [2023-11-29 03:52:22,461 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-29 03:52:22,461 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 5.125) internal successors, (41), 8 states have internal predecessors, (41), 3 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) Word has length 57 [2023-11-29 03:52:22,461 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:52:22,463 INFO L225 Difference]: With dead ends: 467 [2023-11-29 03:52:22,463 INFO L226 Difference]: Without dead ends: 466 [2023-11-29 03:52:22,464 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 53 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=99, Unknown=0, NotChecked=0, Total=132 [2023-11-29 03:52:22,464 INFO L413 NwaCegarLoop]: 136 mSDtfsCounter, 319 mSDsluCounter, 595 mSDsCounter, 0 mSdLazyCounter, 536 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 331 SdHoareTripleChecker+Valid, 731 SdHoareTripleChecker+Invalid, 543 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 536 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2023-11-29 03:52:22,464 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [331 Valid, 731 Invalid, 543 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 536 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2023-11-29 03:52:22,465 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 466 states. [2023-11-29 03:52:22,511 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 466 to 386. [2023-11-29 03:52:22,512 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 386 states, 300 states have (on average 1.4733333333333334) internal successors, (442), 349 states have internal predecessors, (442), 34 states have call successors, (34), 2 states have call predecessors, (34), 2 states have return successors, (34), 34 states have call predecessors, (34), 34 states have call successors, (34) [2023-11-29 03:52:22,513 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 386 states to 386 states and 510 transitions. [2023-11-29 03:52:22,513 INFO L78 Accepts]: Start accepts. Automaton has 386 states and 510 transitions. Word has length 57 [2023-11-29 03:52:22,513 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:52:22,513 INFO L495 AbstractCegarLoop]: Abstraction has 386 states and 510 transitions. [2023-11-29 03:52:22,514 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 5.125) internal successors, (41), 8 states have internal predecessors, (41), 3 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) [2023-11-29 03:52:22,514 INFO L276 IsEmpty]: Start isEmpty. Operand 386 states and 510 transitions. [2023-11-29 03:52:22,514 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2023-11-29 03:52:22,514 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:52:22,514 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:52:22,520 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0345f207-eb94-43c0-b5d4-be7362f6a67e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (36)] Ended with exit code 0 [2023-11-29 03:52:22,715 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34,36 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0345f207-eb94-43c0-b5d4-be7362f6a67e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:52:22,715 INFO L420 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2023-11-29 03:52:22,715 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:52:22,715 INFO L85 PathProgramCache]: Analyzing trace with hash -394805257, now seen corresponding path program 1 times [2023-11-29 03:52:22,715 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:52:22,716 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1506300032] [2023-11-29 03:52:22,716 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:52:22,716 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:52:22,725 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 03:52:22,725 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [924142920] [2023-11-29 03:52:22,725 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:52:22,725 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:52:22,725 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0345f207-eb94-43c0-b5d4-be7362f6a67e/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:52:22,726 INFO L229 MonitoredProcess]: Starting monitored process 37 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0345f207-eb94-43c0-b5d4-be7362f6a67e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:52:22,728 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0345f207-eb94-43c0-b5d4-be7362f6a67e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (37)] Waiting until timeout for monitored process [2023-11-29 03:52:22,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:52:22,789 INFO L262 TraceCheckSpWp]: Trace formula consists of 139 conjuncts, 24 conjunts are in the unsatisfiable core [2023-11-29 03:52:22,791 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:52:23,346 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-11-29 03:52:23,346 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 03:52:23,417 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:52:23,418 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1506300032] [2023-11-29 03:52:23,418 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 03:52:23,418 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [924142920] [2023-11-29 03:52:23,418 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [924142920] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 03:52:23,418 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 03:52:23,418 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2023-11-29 03:52:23,418 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1764322701] [2023-11-29 03:52:23,418 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 03:52:23,418 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-11-29 03:52:23,419 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:52:23,419 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-11-29 03:52:23,419 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=189, Unknown=0, NotChecked=0, Total=240 [2023-11-29 03:52:23,419 INFO L87 Difference]: Start difference. First operand 386 states and 510 transitions. Second operand has 14 states, 13 states have (on average 3.230769230769231) internal successors, (42), 13 states have internal predecessors, (42), 4 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 3 states have call predecessors, (5), 4 states have call successors, (5) [2023-11-29 03:52:24,937 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:52:24,937 INFO L93 Difference]: Finished difference Result 458 states and 542 transitions. [2023-11-29 03:52:24,938 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-11-29 03:52:24,938 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 3.230769230769231) internal successors, (42), 13 states have internal predecessors, (42), 4 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 3 states have call predecessors, (5), 4 states have call successors, (5) Word has length 58 [2023-11-29 03:52:24,938 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:52:24,941 INFO L225 Difference]: With dead ends: 458 [2023-11-29 03:52:24,942 INFO L226 Difference]: Without dead ends: 457 [2023-11-29 03:52:24,942 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=93, Invalid=369, Unknown=0, NotChecked=0, Total=462 [2023-11-29 03:52:24,943 INFO L413 NwaCegarLoop]: 78 mSDtfsCounter, 623 mSDsluCounter, 415 mSDsCounter, 0 mSdLazyCounter, 1416 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 631 SdHoareTripleChecker+Valid, 493 SdHoareTripleChecker+Invalid, 1449 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 1416 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2023-11-29 03:52:24,943 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [631 Valid, 493 Invalid, 1449 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 1416 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2023-11-29 03:52:24,944 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 457 states. [2023-11-29 03:52:24,998 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 457 to 386. [2023-11-29 03:52:24,999 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 386 states, 300 states have (on average 1.4666666666666666) internal successors, (440), 349 states have internal predecessors, (440), 34 states have call successors, (34), 2 states have call predecessors, (34), 2 states have return successors, (34), 34 states have call predecessors, (34), 34 states have call successors, (34) [2023-11-29 03:52:25,001 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 386 states to 386 states and 508 transitions. [2023-11-29 03:52:25,001 INFO L78 Accepts]: Start accepts. Automaton has 386 states and 508 transitions. Word has length 58 [2023-11-29 03:52:25,002 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:52:25,002 INFO L495 AbstractCegarLoop]: Abstraction has 386 states and 508 transitions. [2023-11-29 03:52:25,002 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 3.230769230769231) internal successors, (42), 13 states have internal predecessors, (42), 4 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 3 states have call predecessors, (5), 4 states have call successors, (5) [2023-11-29 03:52:25,002 INFO L276 IsEmpty]: Start isEmpty. Operand 386 states and 508 transitions. [2023-11-29 03:52:25,003 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2023-11-29 03:52:25,003 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:52:25,003 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:52:25,007 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0345f207-eb94-43c0-b5d4-be7362f6a67e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (37)] Ended with exit code 0 [2023-11-29 03:52:25,203 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 37 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0345f207-eb94-43c0-b5d4-be7362f6a67e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable35 [2023-11-29 03:52:25,203 INFO L420 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2023-11-29 03:52:25,204 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:52:25,204 INFO L85 PathProgramCache]: Analyzing trace with hash -61768248, now seen corresponding path program 1 times [2023-11-29 03:52:25,204 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:52:25,204 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1892623489] [2023-11-29 03:52:25,204 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:52:25,204 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:52:25,213 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 03:52:25,213 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1102317089] [2023-11-29 03:52:25,213 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:52:25,213 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:52:25,213 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0345f207-eb94-43c0-b5d4-be7362f6a67e/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:52:25,214 INFO L229 MonitoredProcess]: Starting monitored process 38 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0345f207-eb94-43c0-b5d4-be7362f6a67e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:52:25,215 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0345f207-eb94-43c0-b5d4-be7362f6a67e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (38)] Waiting until timeout for monitored process [2023-11-29 03:52:25,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:52:25,273 INFO L262 TraceCheckSpWp]: Trace formula consists of 130 conjuncts, 9 conjunts are in the unsatisfiable core [2023-11-29 03:52:25,274 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:52:25,362 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2023-11-29 03:52:25,362 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 03:52:25,362 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:52:25,363 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1892623489] [2023-11-29 03:52:25,363 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 03:52:25,363 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1102317089] [2023-11-29 03:52:25,363 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1102317089] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:52:25,363 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:52:25,363 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-29 03:52:25,363 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2024929412] [2023-11-29 03:52:25,363 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:52:25,364 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-29 03:52:25,364 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:52:25,364 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-29 03:52:25,364 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-11-29 03:52:25,364 INFO L87 Difference]: Start difference. First operand 386 states and 508 transitions. Second operand has 7 states, 6 states have (on average 5.666666666666667) internal successors, (34), 6 states have internal predecessors, (34), 2 states have call successors, (7), 1 states have call predecessors, (7), 2 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) [2023-11-29 03:52:25,827 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:52:25,827 INFO L93 Difference]: Finished difference Result 459 states and 579 transitions. [2023-11-29 03:52:25,827 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-29 03:52:25,827 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 5.666666666666667) internal successors, (34), 6 states have internal predecessors, (34), 2 states have call successors, (7), 1 states have call predecessors, (7), 2 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) Word has length 60 [2023-11-29 03:52:25,828 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:52:25,830 INFO L225 Difference]: With dead ends: 459 [2023-11-29 03:52:25,830 INFO L226 Difference]: Without dead ends: 456 [2023-11-29 03:52:25,831 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 54 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2023-11-29 03:52:25,831 INFO L413 NwaCegarLoop]: 80 mSDtfsCounter, 229 mSDsluCounter, 326 mSDsCounter, 0 mSdLazyCounter, 339 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 233 SdHoareTripleChecker+Valid, 406 SdHoareTripleChecker+Invalid, 350 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 339 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-29 03:52:25,831 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [233 Valid, 406 Invalid, 350 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 339 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-29 03:52:25,832 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 456 states. [2023-11-29 03:52:25,884 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 456 to 426. [2023-11-29 03:52:25,884 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 426 states, 334 states have (on average 1.4520958083832336) internal successors, (485), 383 states have internal predecessors, (485), 40 states have call successors, (40), 2 states have call predecessors, (40), 2 states have return successors, (40), 40 states have call predecessors, (40), 40 states have call successors, (40) [2023-11-29 03:52:25,886 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 426 states to 426 states and 565 transitions. [2023-11-29 03:52:25,886 INFO L78 Accepts]: Start accepts. Automaton has 426 states and 565 transitions. Word has length 60 [2023-11-29 03:52:25,886 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:52:25,886 INFO L495 AbstractCegarLoop]: Abstraction has 426 states and 565 transitions. [2023-11-29 03:52:25,886 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 5.666666666666667) internal successors, (34), 6 states have internal predecessors, (34), 2 states have call successors, (7), 1 states have call predecessors, (7), 2 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) [2023-11-29 03:52:25,887 INFO L276 IsEmpty]: Start isEmpty. Operand 426 states and 565 transitions. [2023-11-29 03:52:25,887 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2023-11-29 03:52:25,887 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:52:25,887 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:52:25,892 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0345f207-eb94-43c0-b5d4-be7362f6a67e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (38)] Forceful destruction successful, exit code 0 [2023-11-29 03:52:26,088 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 38 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0345f207-eb94-43c0-b5d4-be7362f6a67e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable36 [2023-11-29 03:52:26,088 INFO L420 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2023-11-29 03:52:26,088 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:52:26,089 INFO L85 PathProgramCache]: Analyzing trace with hash -1914815574, now seen corresponding path program 1 times [2023-11-29 03:52:26,089 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:52:26,089 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1332822334] [2023-11-29 03:52:26,089 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:52:26,089 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:52:26,095 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 03:52:26,095 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1256500057] [2023-11-29 03:52:26,095 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:52:26,096 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:52:26,096 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0345f207-eb94-43c0-b5d4-be7362f6a67e/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:52:26,097 INFO L229 MonitoredProcess]: Starting monitored process 39 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0345f207-eb94-43c0-b5d4-be7362f6a67e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:52:26,097 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0345f207-eb94-43c0-b5d4-be7362f6a67e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (39)] Waiting until timeout for monitored process [2023-11-29 03:52:26,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:52:26,156 INFO L262 TraceCheckSpWp]: Trace formula consists of 131 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-29 03:52:26,157 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:52:26,237 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2023-11-29 03:52:26,238 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 03:52:26,238 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:52:26,238 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1332822334] [2023-11-29 03:52:26,238 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 03:52:26,238 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1256500057] [2023-11-29 03:52:26,238 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1256500057] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:52:26,238 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:52:26,238 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-29 03:52:26,238 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1100987326] [2023-11-29 03:52:26,239 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:52:26,239 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 03:52:26,239 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:52:26,239 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 03:52:26,240 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-29 03:52:26,240 INFO L87 Difference]: Start difference. First operand 426 states and 565 transitions. Second operand has 5 states, 4 states have (on average 8.0) internal successors, (32), 5 states have internal predecessors, (32), 3 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2023-11-29 03:52:26,859 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:52:26,859 INFO L93 Difference]: Finished difference Result 456 states and 573 transitions. [2023-11-29 03:52:26,860 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-29 03:52:26,860 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 8.0) internal successors, (32), 5 states have internal predecessors, (32), 3 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) Word has length 61 [2023-11-29 03:52:26,860 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:52:26,862 INFO L225 Difference]: With dead ends: 456 [2023-11-29 03:52:26,862 INFO L226 Difference]: Without dead ends: 455 [2023-11-29 03:52:26,863 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 57 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2023-11-29 03:52:26,863 INFO L413 NwaCegarLoop]: 86 mSDtfsCounter, 270 mSDsluCounter, 120 mSDsCounter, 0 mSdLazyCounter, 139 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 274 SdHoareTripleChecker+Valid, 206 SdHoareTripleChecker+Invalid, 150 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 139 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-11-29 03:52:26,863 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [274 Valid, 206 Invalid, 150 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 139 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-11-29 03:52:26,864 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 455 states. [2023-11-29 03:52:26,917 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 455 to 426. [2023-11-29 03:52:26,918 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 426 states, 334 states have (on average 1.4461077844311376) internal successors, (483), 383 states have internal predecessors, (483), 40 states have call successors, (40), 2 states have call predecessors, (40), 2 states have return successors, (40), 40 states have call predecessors, (40), 40 states have call successors, (40) [2023-11-29 03:52:26,919 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 426 states to 426 states and 563 transitions. [2023-11-29 03:52:26,919 INFO L78 Accepts]: Start accepts. Automaton has 426 states and 563 transitions. Word has length 61 [2023-11-29 03:52:26,920 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:52:26,920 INFO L495 AbstractCegarLoop]: Abstraction has 426 states and 563 transitions. [2023-11-29 03:52:26,920 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 8.0) internal successors, (32), 5 states have internal predecessors, (32), 3 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2023-11-29 03:52:26,920 INFO L276 IsEmpty]: Start isEmpty. Operand 426 states and 563 transitions. [2023-11-29 03:52:26,920 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2023-11-29 03:52:26,920 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:52:26,920 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:52:26,925 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0345f207-eb94-43c0-b5d4-be7362f6a67e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (39)] Ended with exit code 0 [2023-11-29 03:52:27,121 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 39 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0345f207-eb94-43c0-b5d4-be7362f6a67e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable37 [2023-11-29 03:52:27,121 INFO L420 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2023-11-29 03:52:27,121 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:52:27,122 INFO L85 PathProgramCache]: Analyzing trace with hash 612881254, now seen corresponding path program 1 times [2023-11-29 03:52:27,122 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:52:27,122 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1567749121] [2023-11-29 03:52:27,122 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:52:27,122 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:52:27,129 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 03:52:27,129 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [161620296] [2023-11-29 03:52:27,130 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:52:27,130 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:52:27,130 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0345f207-eb94-43c0-b5d4-be7362f6a67e/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:52:27,131 INFO L229 MonitoredProcess]: Starting monitored process 40 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0345f207-eb94-43c0-b5d4-be7362f6a67e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:52:27,132 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0345f207-eb94-43c0-b5d4-be7362f6a67e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (40)] Waiting until timeout for monitored process [2023-11-29 03:52:27,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:52:27,195 INFO L262 TraceCheckSpWp]: Trace formula consists of 150 conjuncts, 11 conjunts are in the unsatisfiable core [2023-11-29 03:52:27,196 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:52:27,314 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 6 proven. 7 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2023-11-29 03:52:27,314 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 03:52:31,653 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:52:31,653 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1567749121] [2023-11-29 03:52:31,653 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 03:52:31,653 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [161620296] [2023-11-29 03:52:31,654 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [161620296] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 03:52:31,654 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 03:52:31,654 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2023-11-29 03:52:31,654 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [167125007] [2023-11-29 03:52:31,654 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 03:52:31,654 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-29 03:52:31,655 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:52:31,655 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-29 03:52:31,655 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=149, Unknown=1, NotChecked=0, Total=182 [2023-11-29 03:52:31,656 INFO L87 Difference]: Start difference. First operand 426 states and 563 transitions. Second operand has 9 states, 8 states have (on average 5.5) internal successors, (44), 8 states have internal predecessors, (44), 3 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2023-11-29 03:52:33,356 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:52:33,356 INFO L93 Difference]: Finished difference Result 686 states and 842 transitions. [2023-11-29 03:52:33,357 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-29 03:52:33,357 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 5.5) internal successors, (44), 8 states have internal predecessors, (44), 3 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) Word has length 65 [2023-11-29 03:52:33,357 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:52:33,362 INFO L225 Difference]: With dead ends: 686 [2023-11-29 03:52:33,362 INFO L226 Difference]: Without dead ends: 685 [2023-11-29 03:52:33,362 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 115 GetRequests, 96 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 4.4s TimeCoverageRelationStatistics Valid=102, Invalid=317, Unknown=1, NotChecked=0, Total=420 [2023-11-29 03:52:33,363 INFO L413 NwaCegarLoop]: 118 mSDtfsCounter, 581 mSDsluCounter, 561 mSDsCounter, 0 mSdLazyCounter, 581 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 585 SdHoareTripleChecker+Valid, 679 SdHoareTripleChecker+Invalid, 614 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 581 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2023-11-29 03:52:33,363 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [585 Valid, 679 Invalid, 614 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 581 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2023-11-29 03:52:33,364 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 685 states. [2023-11-29 03:52:33,430 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 685 to 456. [2023-11-29 03:52:33,431 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 456 states, 360 states have (on average 1.4444444444444444) internal successors, (520), 409 states have internal predecessors, (520), 44 states have call successors, (44), 2 states have call predecessors, (44), 2 states have return successors, (44), 44 states have call predecessors, (44), 44 states have call successors, (44) [2023-11-29 03:52:33,432 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 456 states to 456 states and 608 transitions. [2023-11-29 03:52:33,433 INFO L78 Accepts]: Start accepts. Automaton has 456 states and 608 transitions. Word has length 65 [2023-11-29 03:52:33,433 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:52:33,433 INFO L495 AbstractCegarLoop]: Abstraction has 456 states and 608 transitions. [2023-11-29 03:52:33,433 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 5.5) internal successors, (44), 8 states have internal predecessors, (44), 3 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2023-11-29 03:52:33,433 INFO L276 IsEmpty]: Start isEmpty. Operand 456 states and 608 transitions. [2023-11-29 03:52:33,434 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2023-11-29 03:52:33,434 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:52:33,434 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:52:33,438 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0345f207-eb94-43c0-b5d4-be7362f6a67e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (40)] Forceful destruction successful, exit code 0 [2023-11-29 03:52:33,634 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 40 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0345f207-eb94-43c0-b5d4-be7362f6a67e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable38 [2023-11-29 03:52:33,634 INFO L420 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2023-11-29 03:52:33,635 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:52:33,635 INFO L85 PathProgramCache]: Analyzing trace with hash -82811428, now seen corresponding path program 1 times [2023-11-29 03:52:33,635 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:52:33,635 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [230993834] [2023-11-29 03:52:33,635 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:52:33,635 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:52:33,642 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 03:52:33,642 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [226961291] [2023-11-29 03:52:33,642 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:52:33,642 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:52:33,642 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0345f207-eb94-43c0-b5d4-be7362f6a67e/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:52:33,643 INFO L229 MonitoredProcess]: Starting monitored process 41 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0345f207-eb94-43c0-b5d4-be7362f6a67e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:52:33,645 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0345f207-eb94-43c0-b5d4-be7362f6a67e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (41)] Waiting until timeout for monitored process [2023-11-29 03:52:33,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:52:33,698 INFO L262 TraceCheckSpWp]: Trace formula consists of 141 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-29 03:52:33,699 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:52:33,746 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2023-11-29 03:52:33,746 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 03:52:33,746 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:52:33,746 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [230993834] [2023-11-29 03:52:33,746 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 03:52:33,746 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [226961291] [2023-11-29 03:52:33,746 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [226961291] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:52:33,746 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:52:33,746 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-29 03:52:33,747 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1849154206] [2023-11-29 03:52:33,747 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:52:33,747 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 03:52:33,747 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:52:33,747 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 03:52:33,747 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-29 03:52:33,747 INFO L87 Difference]: Start difference. First operand 456 states and 608 transitions. Second operand has 5 states, 4 states have (on average 8.25) internal successors, (33), 5 states have internal predecessors, (33), 3 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2023-11-29 03:52:34,499 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:52:34,499 INFO L93 Difference]: Finished difference Result 489 states and 624 transitions. [2023-11-29 03:52:34,500 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-29 03:52:34,500 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 8.25) internal successors, (33), 5 states have internal predecessors, (33), 3 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) Word has length 67 [2023-11-29 03:52:34,500 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:52:34,502 INFO L225 Difference]: With dead ends: 489 [2023-11-29 03:52:34,502 INFO L226 Difference]: Without dead ends: 487 [2023-11-29 03:52:34,503 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 63 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-11-29 03:52:34,503 INFO L413 NwaCegarLoop]: 82 mSDtfsCounter, 290 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 175 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 294 SdHoareTripleChecker+Valid, 267 SdHoareTripleChecker+Invalid, 191 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 175 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-11-29 03:52:34,503 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [294 Valid, 267 Invalid, 191 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 175 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-11-29 03:52:34,504 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 487 states. [2023-11-29 03:52:34,588 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 487 to 458. [2023-11-29 03:52:34,588 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 458 states, 362 states have (on average 1.4364640883977902) internal successors, (520), 411 states have internal predecessors, (520), 44 states have call successors, (44), 2 states have call predecessors, (44), 2 states have return successors, (44), 44 states have call predecessors, (44), 44 states have call successors, (44) [2023-11-29 03:52:34,590 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 458 states to 458 states and 608 transitions. [2023-11-29 03:52:34,590 INFO L78 Accepts]: Start accepts. Automaton has 458 states and 608 transitions. Word has length 67 [2023-11-29 03:52:34,590 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:52:34,590 INFO L495 AbstractCegarLoop]: Abstraction has 458 states and 608 transitions. [2023-11-29 03:52:34,590 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 8.25) internal successors, (33), 5 states have internal predecessors, (33), 3 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2023-11-29 03:52:34,590 INFO L276 IsEmpty]: Start isEmpty. Operand 458 states and 608 transitions. [2023-11-29 03:52:34,591 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2023-11-29 03:52:34,591 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:52:34,591 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:52:34,596 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0345f207-eb94-43c0-b5d4-be7362f6a67e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (41)] Ended with exit code 0 [2023-11-29 03:52:34,791 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 41 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0345f207-eb94-43c0-b5d4-be7362f6a67e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable39 [2023-11-29 03:52:34,791 INFO L420 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2023-11-29 03:52:34,792 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:52:34,792 INFO L85 PathProgramCache]: Analyzing trace with hash 1819449797, now seen corresponding path program 1 times [2023-11-29 03:52:34,792 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:52:34,792 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1158869732] [2023-11-29 03:52:34,792 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:52:34,792 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:52:34,800 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 03:52:34,800 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1640521238] [2023-11-29 03:52:34,801 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:52:34,801 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:52:34,801 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0345f207-eb94-43c0-b5d4-be7362f6a67e/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:52:34,802 INFO L229 MonitoredProcess]: Starting monitored process 42 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0345f207-eb94-43c0-b5d4-be7362f6a67e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:52:34,803 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0345f207-eb94-43c0-b5d4-be7362f6a67e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (42)] Waiting until timeout for monitored process [2023-11-29 03:52:34,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:52:34,864 INFO L262 TraceCheckSpWp]: Trace formula consists of 151 conjuncts, 10 conjunts are in the unsatisfiable core [2023-11-29 03:52:34,865 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:52:34,938 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 9 proven. 4 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2023-11-29 03:52:34,939 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 03:52:34,980 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:52:34,980 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1158869732] [2023-11-29 03:52:34,980 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 03:52:34,980 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1640521238] [2023-11-29 03:52:34,980 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1640521238] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 03:52:34,980 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 03:52:34,980 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2023-11-29 03:52:34,980 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [439218636] [2023-11-29 03:52:34,981 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 03:52:34,981 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-29 03:52:34,981 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:52:34,981 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-29 03:52:34,982 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2023-11-29 03:52:34,982 INFO L87 Difference]: Start difference. First operand 458 states and 608 transitions. Second operand has 9 states, 8 states have (on average 5.625) internal successors, (45), 8 states have internal predecessors, (45), 2 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (6), 3 states have call predecessors, (6), 2 states have call successors, (6) [2023-11-29 03:52:35,977 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:52:35,977 INFO L93 Difference]: Finished difference Result 567 states and 684 transitions. [2023-11-29 03:52:35,977 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-29 03:52:35,978 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 5.625) internal successors, (45), 8 states have internal predecessors, (45), 2 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (6), 3 states have call predecessors, (6), 2 states have call successors, (6) Word has length 66 [2023-11-29 03:52:35,978 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:52:35,980 INFO L225 Difference]: With dead ends: 567 [2023-11-29 03:52:35,980 INFO L226 Difference]: Without dead ends: 566 [2023-11-29 03:52:35,981 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 60 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=61, Invalid=211, Unknown=0, NotChecked=0, Total=272 [2023-11-29 03:52:35,981 INFO L413 NwaCegarLoop]: 119 mSDtfsCounter, 589 mSDsluCounter, 523 mSDsCounter, 0 mSdLazyCounter, 508 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 593 SdHoareTripleChecker+Valid, 642 SdHoareTripleChecker+Invalid, 544 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 508 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-11-29 03:52:35,982 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [593 Valid, 642 Invalid, 544 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 508 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-11-29 03:52:35,983 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 566 states. [2023-11-29 03:52:36,048 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 566 to 488. [2023-11-29 03:52:36,048 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 488 states, 388 states have (on average 1.4329896907216495) internal successors, (556), 437 states have internal predecessors, (556), 48 states have call successors, (48), 2 states have call predecessors, (48), 2 states have return successors, (48), 48 states have call predecessors, (48), 48 states have call successors, (48) [2023-11-29 03:52:36,050 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 488 states to 488 states and 652 transitions. [2023-11-29 03:52:36,050 INFO L78 Accepts]: Start accepts. Automaton has 488 states and 652 transitions. Word has length 66 [2023-11-29 03:52:36,050 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:52:36,050 INFO L495 AbstractCegarLoop]: Abstraction has 488 states and 652 transitions. [2023-11-29 03:52:36,050 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 5.625) internal successors, (45), 8 states have internal predecessors, (45), 2 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (6), 3 states have call predecessors, (6), 2 states have call successors, (6) [2023-11-29 03:52:36,050 INFO L276 IsEmpty]: Start isEmpty. Operand 488 states and 652 transitions. [2023-11-29 03:52:36,051 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2023-11-29 03:52:36,051 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:52:36,051 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:52:36,055 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0345f207-eb94-43c0-b5d4-be7362f6a67e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (42)] Ended with exit code 0 [2023-11-29 03:52:36,251 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 42 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0345f207-eb94-43c0-b5d4-be7362f6a67e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable40 [2023-11-29 03:52:36,251 INFO L420 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2023-11-29 03:52:36,252 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:52:36,252 INFO L85 PathProgramCache]: Analyzing trace with hash 1727813147, now seen corresponding path program 1 times [2023-11-29 03:52:36,252 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:52:36,252 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1980874731] [2023-11-29 03:52:36,252 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:52:36,252 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:52:36,258 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 03:52:36,258 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [248293813] [2023-11-29 03:52:36,258 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:52:36,258 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:52:36,259 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0345f207-eb94-43c0-b5d4-be7362f6a67e/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:52:36,259 INFO L229 MonitoredProcess]: Starting monitored process 43 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0345f207-eb94-43c0-b5d4-be7362f6a67e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:52:36,260 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0345f207-eb94-43c0-b5d4-be7362f6a67e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (43)] Waiting until timeout for monitored process [2023-11-29 03:52:36,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:52:36,315 INFO L262 TraceCheckSpWp]: Trace formula consists of 142 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-29 03:52:36,317 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:52:36,367 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2023-11-29 03:52:36,367 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 03:52:36,367 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:52:36,367 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1980874731] [2023-11-29 03:52:36,367 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 03:52:36,367 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [248293813] [2023-11-29 03:52:36,368 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [248293813] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:52:36,368 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:52:36,368 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-29 03:52:36,368 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1195870424] [2023-11-29 03:52:36,368 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:52:36,368 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 03:52:36,368 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:52:36,369 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 03:52:36,369 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-29 03:52:36,369 INFO L87 Difference]: Start difference. First operand 488 states and 652 transitions. Second operand has 5 states, 4 states have (on average 8.5) internal successors, (34), 5 states have internal predecessors, (34), 3 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2023-11-29 03:52:37,143 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:52:37,143 INFO L93 Difference]: Finished difference Result 517 states and 664 transitions. [2023-11-29 03:52:37,143 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-29 03:52:37,143 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 8.5) internal successors, (34), 5 states have internal predecessors, (34), 3 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) Word has length 68 [2023-11-29 03:52:37,144 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:52:37,146 INFO L225 Difference]: With dead ends: 517 [2023-11-29 03:52:37,146 INFO L226 Difference]: Without dead ends: 515 [2023-11-29 03:52:37,146 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 64 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-11-29 03:52:37,147 INFO L413 NwaCegarLoop]: 85 mSDtfsCounter, 281 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 171 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 285 SdHoareTripleChecker+Valid, 270 SdHoareTripleChecker+Invalid, 187 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 171 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-11-29 03:52:37,147 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [285 Valid, 270 Invalid, 187 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 171 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-11-29 03:52:37,148 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 515 states. [2023-11-29 03:52:37,217 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 515 to 490. [2023-11-29 03:52:37,218 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 490 states, 390 states have (on average 1.4256410256410257) internal successors, (556), 439 states have internal predecessors, (556), 48 states have call successors, (48), 2 states have call predecessors, (48), 2 states have return successors, (48), 48 states have call predecessors, (48), 48 states have call successors, (48) [2023-11-29 03:52:37,220 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 490 states to 490 states and 652 transitions. [2023-11-29 03:52:37,220 INFO L78 Accepts]: Start accepts. Automaton has 490 states and 652 transitions. Word has length 68 [2023-11-29 03:52:37,220 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:52:37,220 INFO L495 AbstractCegarLoop]: Abstraction has 490 states and 652 transitions. [2023-11-29 03:52:37,220 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 8.5) internal successors, (34), 5 states have internal predecessors, (34), 3 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2023-11-29 03:52:37,220 INFO L276 IsEmpty]: Start isEmpty. Operand 490 states and 652 transitions. [2023-11-29 03:52:37,221 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2023-11-29 03:52:37,221 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:52:37,221 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:52:37,226 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0345f207-eb94-43c0-b5d4-be7362f6a67e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (43)] Ended with exit code 0 [2023-11-29 03:52:37,421 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 43 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0345f207-eb94-43c0-b5d4-be7362f6a67e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable41 [2023-11-29 03:52:37,421 INFO L420 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2023-11-29 03:52:37,422 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:52:37,422 INFO L85 PathProgramCache]: Analyzing trace with hash 568368968, now seen corresponding path program 1 times [2023-11-29 03:52:37,422 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:52:37,422 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [23599833] [2023-11-29 03:52:37,422 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:52:37,422 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:52:37,430 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 03:52:37,430 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1252510369] [2023-11-29 03:52:37,430 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:52:37,431 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:52:37,431 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0345f207-eb94-43c0-b5d4-be7362f6a67e/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:52:37,432 INFO L229 MonitoredProcess]: Starting monitored process 44 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0345f207-eb94-43c0-b5d4-be7362f6a67e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:52:37,433 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0345f207-eb94-43c0-b5d4-be7362f6a67e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (44)] Waiting until timeout for monitored process [2023-11-29 03:52:37,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:52:37,489 INFO L262 TraceCheckSpWp]: Trace formula consists of 152 conjuncts, 15 conjunts are in the unsatisfiable core [2023-11-29 03:52:37,490 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:52:37,694 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 6 proven. 7 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2023-11-29 03:52:37,694 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 03:52:38,061 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:52:38,061 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [23599833] [2023-11-29 03:52:38,061 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 03:52:38,061 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1252510369] [2023-11-29 03:52:38,061 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1252510369] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 03:52:38,061 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 03:52:38,061 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2023-11-29 03:52:38,062 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [146064883] [2023-11-29 03:52:38,062 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 03:52:38,062 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-29 03:52:38,062 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:52:38,063 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-29 03:52:38,063 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=177, Unknown=0, NotChecked=0, Total=210 [2023-11-29 03:52:38,063 INFO L87 Difference]: Start difference. First operand 490 states and 652 transitions. Second operand has 10 states, 8 states have (on average 5.75) internal successors, (46), 9 states have internal predecessors, (46), 4 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (6), 4 states have call predecessors, (6), 4 states have call successors, (6) [2023-11-29 03:52:39,251 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:52:39,251 INFO L93 Difference]: Finished difference Result 547 states and 661 transitions. [2023-11-29 03:52:39,252 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-29 03:52:39,252 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 8 states have (on average 5.75) internal successors, (46), 9 states have internal predecessors, (46), 4 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (6), 4 states have call predecessors, (6), 4 states have call successors, (6) Word has length 67 [2023-11-29 03:52:39,252 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:52:39,256 INFO L225 Difference]: With dead ends: 547 [2023-11-29 03:52:39,256 INFO L226 Difference]: Without dead ends: 546 [2023-11-29 03:52:39,256 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 118 GetRequests, 99 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=84, Invalid=336, Unknown=0, NotChecked=0, Total=420 [2023-11-29 03:52:39,257 INFO L413 NwaCegarLoop]: 81 mSDtfsCounter, 757 mSDsluCounter, 418 mSDsCounter, 0 mSdLazyCounter, 800 mSolverCounterSat, 51 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 761 SdHoareTripleChecker+Valid, 499 SdHoareTripleChecker+Invalid, 851 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 800 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2023-11-29 03:52:39,257 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [761 Valid, 499 Invalid, 851 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [51 Valid, 800 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2023-11-29 03:52:39,258 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 546 states. [2023-11-29 03:52:39,327 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 546 to 490. [2023-11-29 03:52:39,327 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 490 states, 390 states have (on average 1.4230769230769231) internal successors, (555), 439 states have internal predecessors, (555), 48 states have call successors, (48), 2 states have call predecessors, (48), 2 states have return successors, (48), 48 states have call predecessors, (48), 48 states have call successors, (48) [2023-11-29 03:52:39,329 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 490 states to 490 states and 651 transitions. [2023-11-29 03:52:39,329 INFO L78 Accepts]: Start accepts. Automaton has 490 states and 651 transitions. Word has length 67 [2023-11-29 03:52:39,329 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:52:39,329 INFO L495 AbstractCegarLoop]: Abstraction has 490 states and 651 transitions. [2023-11-29 03:52:39,329 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 8 states have (on average 5.75) internal successors, (46), 9 states have internal predecessors, (46), 4 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (6), 4 states have call predecessors, (6), 4 states have call successors, (6) [2023-11-29 03:52:39,330 INFO L276 IsEmpty]: Start isEmpty. Operand 490 states and 651 transitions. [2023-11-29 03:52:39,330 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2023-11-29 03:52:39,330 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:52:39,330 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:52:39,335 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0345f207-eb94-43c0-b5d4-be7362f6a67e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (44)] Ended with exit code 0 [2023-11-29 03:52:39,531 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 44 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0345f207-eb94-43c0-b5d4-be7362f6a67e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable42 [2023-11-29 03:52:39,531 INFO L420 AbstractCegarLoop]: === Iteration 44 === Targeting ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2023-11-29 03:52:39,531 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:52:39,531 INFO L85 PathProgramCache]: Analyzing trace with hash -1723905366, now seen corresponding path program 1 times [2023-11-29 03:52:39,531 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:52:39,531 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1743744227] [2023-11-29 03:52:39,531 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:52:39,532 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:52:39,539 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 03:52:39,539 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2000963978] [2023-11-29 03:52:39,539 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:52:39,539 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:52:39,539 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0345f207-eb94-43c0-b5d4-be7362f6a67e/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:52:39,540 INFO L229 MonitoredProcess]: Starting monitored process 45 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0345f207-eb94-43c0-b5d4-be7362f6a67e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:52:39,541 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0345f207-eb94-43c0-b5d4-be7362f6a67e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (45)] Waiting until timeout for monitored process [2023-11-29 03:52:39,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:52:39,598 INFO L262 TraceCheckSpWp]: Trace formula consists of 144 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-29 03:52:39,599 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:52:39,628 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2023-11-29 03:52:39,628 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 03:52:39,628 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:52:39,628 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1743744227] [2023-11-29 03:52:39,628 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 03:52:39,629 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2000963978] [2023-11-29 03:52:39,629 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2000963978] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:52:39,629 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:52:39,629 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 03:52:39,629 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [336316247] [2023-11-29 03:52:39,629 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:52:39,629 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 03:52:39,629 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:52:39,629 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 03:52:39,629 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 03:52:39,630 INFO L87 Difference]: Start difference. First operand 490 states and 651 transitions. Second operand has 3 states, 2 states have (on average 18.0) internal successors, (36), 3 states have internal predecessors, (36), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-11-29 03:52:39,750 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:52:39,750 INFO L93 Difference]: Finished difference Result 614 states and 838 transitions. [2023-11-29 03:52:39,751 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 03:52:39,751 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 18.0) internal successors, (36), 3 states have internal predecessors, (36), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 70 [2023-11-29 03:52:39,751 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:52:39,754 INFO L225 Difference]: With dead ends: 614 [2023-11-29 03:52:39,754 INFO L226 Difference]: Without dead ends: 613 [2023-11-29 03:52:39,755 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 68 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 03:52:39,755 INFO L413 NwaCegarLoop]: 116 mSDtfsCounter, 30 mSDsluCounter, 104 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 220 SdHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 03:52:39,755 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [30 Valid, 220 Invalid, 42 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 03:52:39,756 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 613 states. [2023-11-29 03:52:39,842 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 613 to 570. [2023-11-29 03:52:39,842 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 570 states, 456 states have (on average 1.4517543859649122) internal successors, (662), 505 states have internal predecessors, (662), 62 states have call successors, (62), 2 states have call predecessors, (62), 2 states have return successors, (62), 62 states have call predecessors, (62), 62 states have call successors, (62) [2023-11-29 03:52:39,843 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 570 states to 570 states and 786 transitions. [2023-11-29 03:52:39,843 INFO L78 Accepts]: Start accepts. Automaton has 570 states and 786 transitions. Word has length 70 [2023-11-29 03:52:39,844 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:52:39,844 INFO L495 AbstractCegarLoop]: Abstraction has 570 states and 786 transitions. [2023-11-29 03:52:39,844 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 18.0) internal successors, (36), 3 states have internal predecessors, (36), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-11-29 03:52:39,844 INFO L276 IsEmpty]: Start isEmpty. Operand 570 states and 786 transitions. [2023-11-29 03:52:39,844 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2023-11-29 03:52:39,844 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:52:39,844 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:52:39,848 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0345f207-eb94-43c0-b5d4-be7362f6a67e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (45)] Ended with exit code 0 [2023-11-29 03:52:40,045 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43,45 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0345f207-eb94-43c0-b5d4-be7362f6a67e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:52:40,045 INFO L420 AbstractCegarLoop]: === Iteration 45 === Targeting ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2023-11-29 03:52:40,045 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:52:40,045 INFO L85 PathProgramCache]: Analyzing trace with hash -1901458655, now seen corresponding path program 1 times [2023-11-29 03:52:40,045 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:52:40,045 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [480874805] [2023-11-29 03:52:40,045 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:52:40,045 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:52:40,050 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 03:52:40,050 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [193197157] [2023-11-29 03:52:40,050 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:52:40,051 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:52:40,051 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0345f207-eb94-43c0-b5d4-be7362f6a67e/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:52:40,052 INFO L229 MonitoredProcess]: Starting monitored process 46 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0345f207-eb94-43c0-b5d4-be7362f6a67e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:52:40,052 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0345f207-eb94-43c0-b5d4-be7362f6a67e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (46)] Waiting until timeout for monitored process [2023-11-29 03:52:40,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:52:40,098 INFO L262 TraceCheckSpWp]: Trace formula consists of 145 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-29 03:52:40,100 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:52:40,158 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2023-11-29 03:52:40,159 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 03:52:40,159 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:52:40,159 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [480874805] [2023-11-29 03:52:40,159 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 03:52:40,159 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [193197157] [2023-11-29 03:52:40,159 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [193197157] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:52:40,159 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:52:40,159 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-29 03:52:40,159 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1816466851] [2023-11-29 03:52:40,159 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:52:40,160 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 03:52:40,160 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:52:40,160 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 03:52:40,160 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-11-29 03:52:40,160 INFO L87 Difference]: Start difference. First operand 570 states and 786 transitions. Second operand has 6 states, 5 states have (on average 7.4) internal successors, (37), 6 states have internal predecessors, (37), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-11-29 03:52:41,183 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:52:41,183 INFO L93 Difference]: Finished difference Result 588 states and 786 transitions. [2023-11-29 03:52:41,184 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-29 03:52:41,184 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 7.4) internal successors, (37), 6 states have internal predecessors, (37), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 71 [2023-11-29 03:52:41,184 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:52:41,187 INFO L225 Difference]: With dead ends: 588 [2023-11-29 03:52:41,187 INFO L226 Difference]: Without dead ends: 587 [2023-11-29 03:52:41,187 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 66 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2023-11-29 03:52:41,188 INFO L413 NwaCegarLoop]: 95 mSDtfsCounter, 242 mSDsluCounter, 265 mSDsCounter, 0 mSdLazyCounter, 207 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 246 SdHoareTripleChecker+Valid, 360 SdHoareTripleChecker+Invalid, 218 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 207 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-11-29 03:52:41,188 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [246 Valid, 360 Invalid, 218 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 207 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-11-29 03:52:41,189 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 587 states. [2023-11-29 03:52:41,274 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 587 to 570. [2023-11-29 03:52:41,275 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 570 states, 456 states have (on average 1.4495614035087718) internal successors, (661), 505 states have internal predecessors, (661), 62 states have call successors, (62), 2 states have call predecessors, (62), 2 states have return successors, (62), 62 states have call predecessors, (62), 62 states have call successors, (62) [2023-11-29 03:52:41,276 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 570 states to 570 states and 785 transitions. [2023-11-29 03:52:41,276 INFO L78 Accepts]: Start accepts. Automaton has 570 states and 785 transitions. Word has length 71 [2023-11-29 03:52:41,276 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:52:41,277 INFO L495 AbstractCegarLoop]: Abstraction has 570 states and 785 transitions. [2023-11-29 03:52:41,277 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 7.4) internal successors, (37), 6 states have internal predecessors, (37), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-11-29 03:52:41,277 INFO L276 IsEmpty]: Start isEmpty. Operand 570 states and 785 transitions. [2023-11-29 03:52:41,277 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2023-11-29 03:52:41,277 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:52:41,277 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:52:41,282 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0345f207-eb94-43c0-b5d4-be7362f6a67e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (46)] Ended with exit code 0 [2023-11-29 03:52:41,478 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44,46 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0345f207-eb94-43c0-b5d4-be7362f6a67e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:52:41,478 INFO L420 AbstractCegarLoop]: === Iteration 46 === Targeting ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2023-11-29 03:52:41,478 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:52:41,478 INFO L85 PathProgramCache]: Analyzing trace with hash 1184323980, now seen corresponding path program 1 times [2023-11-29 03:52:41,478 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:52:41,478 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1354787923] [2023-11-29 03:52:41,479 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:52:41,479 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:52:41,485 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 03:52:41,485 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1195434251] [2023-11-29 03:52:41,485 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:52:41,485 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:52:41,485 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0345f207-eb94-43c0-b5d4-be7362f6a67e/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:52:41,486 INFO L229 MonitoredProcess]: Starting monitored process 47 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0345f207-eb94-43c0-b5d4-be7362f6a67e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:52:41,487 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0345f207-eb94-43c0-b5d4-be7362f6a67e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (47)] Waiting until timeout for monitored process [2023-11-29 03:52:41,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:52:41,543 INFO L262 TraceCheckSpWp]: Trace formula consists of 148 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-29 03:52:41,544 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:52:41,638 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2023-11-29 03:52:41,638 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 03:52:41,639 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:52:41,639 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1354787923] [2023-11-29 03:52:41,639 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 03:52:41,639 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1195434251] [2023-11-29 03:52:41,639 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1195434251] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:52:41,639 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:52:41,639 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 03:52:41,639 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [356770128] [2023-11-29 03:52:41,639 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:52:41,640 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 03:52:41,640 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:52:41,640 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 03:52:41,640 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-29 03:52:41,641 INFO L87 Difference]: Start difference. First operand 570 states and 785 transitions. Second operand has 4 states, 3 states have (on average 12.666666666666666) internal successors, (38), 4 states have internal predecessors, (38), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-11-29 03:52:41,791 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:52:41,791 INFO L93 Difference]: Finished difference Result 570 states and 785 transitions. [2023-11-29 03:52:41,791 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 03:52:41,791 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 12.666666666666666) internal successors, (38), 4 states have internal predecessors, (38), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 72 [2023-11-29 03:52:41,792 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:52:41,794 INFO L225 Difference]: With dead ends: 570 [2023-11-29 03:52:41,794 INFO L226 Difference]: Without dead ends: 568 [2023-11-29 03:52:41,794 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 69 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-29 03:52:41,794 INFO L413 NwaCegarLoop]: 97 mSDtfsCounter, 48 mSDsluCounter, 101 mSDsCounter, 0 mSdLazyCounter, 56 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 198 SdHoareTripleChecker+Invalid, 59 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 56 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 03:52:41,795 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [48 Valid, 198 Invalid, 59 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 56 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 03:52:41,795 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 568 states. [2023-11-29 03:52:41,868 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 568 to 568. [2023-11-29 03:52:41,868 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 568 states, 456 states have (on average 1.4254385964912282) internal successors, (650), 503 states have internal predecessors, (650), 62 states have call successors, (62), 2 states have call predecessors, (62), 2 states have return successors, (62), 62 states have call predecessors, (62), 62 states have call successors, (62) [2023-11-29 03:52:41,869 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 568 states to 568 states and 774 transitions. [2023-11-29 03:52:41,869 INFO L78 Accepts]: Start accepts. Automaton has 568 states and 774 transitions. Word has length 72 [2023-11-29 03:52:41,870 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:52:41,870 INFO L495 AbstractCegarLoop]: Abstraction has 568 states and 774 transitions. [2023-11-29 03:52:41,870 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 12.666666666666666) internal successors, (38), 4 states have internal predecessors, (38), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-11-29 03:52:41,870 INFO L276 IsEmpty]: Start isEmpty. Operand 568 states and 774 transitions. [2023-11-29 03:52:41,870 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2023-11-29 03:52:41,870 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:52:41,870 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:52:41,874 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0345f207-eb94-43c0-b5d4-be7362f6a67e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (47)] Ended with exit code 0 [2023-11-29 03:52:42,071 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 47 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0345f207-eb94-43c0-b5d4-be7362f6a67e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable45 [2023-11-29 03:52:42,071 INFO L420 AbstractCegarLoop]: === Iteration 47 === Targeting ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2023-11-29 03:52:42,071 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:52:42,071 INFO L85 PathProgramCache]: Analyzing trace with hash -1940662141, now seen corresponding path program 1 times [2023-11-29 03:52:42,071 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:52:42,071 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1186785153] [2023-11-29 03:52:42,071 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:52:42,071 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:52:42,078 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 03:52:42,079 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [51040252] [2023-11-29 03:52:42,079 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:52:42,079 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:52:42,079 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0345f207-eb94-43c0-b5d4-be7362f6a67e/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:52:42,080 INFO L229 MonitoredProcess]: Starting monitored process 48 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0345f207-eb94-43c0-b5d4-be7362f6a67e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:52:42,080 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0345f207-eb94-43c0-b5d4-be7362f6a67e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (48)] Waiting until timeout for monitored process [2023-11-29 03:52:42,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:52:42,135 INFO L262 TraceCheckSpWp]: Trace formula consists of 149 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-29 03:52:42,137 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:52:42,224 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2023-11-29 03:52:42,224 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 03:52:42,225 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:52:42,225 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1186785153] [2023-11-29 03:52:42,225 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 03:52:42,225 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [51040252] [2023-11-29 03:52:42,225 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [51040252] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:52:42,225 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:52:42,225 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 03:52:42,225 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [684621992] [2023-11-29 03:52:42,225 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:52:42,226 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 03:52:42,226 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:52:42,226 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 03:52:42,226 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-29 03:52:42,226 INFO L87 Difference]: Start difference. First operand 568 states and 774 transitions. Second operand has 4 states, 3 states have (on average 13.0) internal successors, (39), 4 states have internal predecessors, (39), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-11-29 03:52:42,423 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:52:42,423 INFO L93 Difference]: Finished difference Result 685 states and 906 transitions. [2023-11-29 03:52:42,423 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 03:52:42,424 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 13.0) internal successors, (39), 4 states have internal predecessors, (39), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 73 [2023-11-29 03:52:42,424 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:52:42,428 INFO L225 Difference]: With dead ends: 685 [2023-11-29 03:52:42,428 INFO L226 Difference]: Without dead ends: 683 [2023-11-29 03:52:42,429 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 70 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-29 03:52:42,429 INFO L413 NwaCegarLoop]: 108 mSDtfsCounter, 105 mSDsluCounter, 137 mSDsCounter, 0 mSdLazyCounter, 81 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 109 SdHoareTripleChecker+Valid, 245 SdHoareTripleChecker+Invalid, 82 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 81 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 03:52:42,429 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [109 Valid, 245 Invalid, 82 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 81 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 03:52:42,430 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 683 states. [2023-11-29 03:52:42,568 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 683 to 600. [2023-11-29 03:52:42,569 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 600 states, 486 states have (on average 1.4218106995884774) internal successors, (691), 533 states have internal predecessors, (691), 64 states have call successors, (64), 2 states have call predecessors, (64), 2 states have return successors, (64), 64 states have call predecessors, (64), 64 states have call successors, (64) [2023-11-29 03:52:42,571 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 600 states to 600 states and 819 transitions. [2023-11-29 03:52:42,571 INFO L78 Accepts]: Start accepts. Automaton has 600 states and 819 transitions. Word has length 73 [2023-11-29 03:52:42,571 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:52:42,571 INFO L495 AbstractCegarLoop]: Abstraction has 600 states and 819 transitions. [2023-11-29 03:52:42,571 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 13.0) internal successors, (39), 4 states have internal predecessors, (39), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-11-29 03:52:42,571 INFO L276 IsEmpty]: Start isEmpty. Operand 600 states and 819 transitions. [2023-11-29 03:52:42,572 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2023-11-29 03:52:42,572 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:52:42,572 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:52:42,577 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0345f207-eb94-43c0-b5d4-be7362f6a67e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (48)] Ended with exit code 0 [2023-11-29 03:52:42,773 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 48 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0345f207-eb94-43c0-b5d4-be7362f6a67e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable46 [2023-11-29 03:52:42,773 INFO L420 AbstractCegarLoop]: === Iteration 48 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2023-11-29 03:52:42,773 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:52:42,773 INFO L85 PathProgramCache]: Analyzing trace with hash -1322555015, now seen corresponding path program 1 times [2023-11-29 03:52:42,774 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:52:42,774 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1016433241] [2023-11-29 03:52:42,774 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:52:42,774 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:52:42,780 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 03:52:42,780 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [370615102] [2023-11-29 03:52:42,780 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:52:42,780 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:52:42,780 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0345f207-eb94-43c0-b5d4-be7362f6a67e/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:52:42,781 INFO L229 MonitoredProcess]: Starting monitored process 49 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0345f207-eb94-43c0-b5d4-be7362f6a67e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:52:42,782 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0345f207-eb94-43c0-b5d4-be7362f6a67e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (49)] Waiting until timeout for monitored process [2023-11-29 03:52:42,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:52:42,839 INFO L262 TraceCheckSpWp]: Trace formula consists of 162 conjuncts, 12 conjunts are in the unsatisfiable core [2023-11-29 03:52:42,840 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:52:42,942 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 6 proven. 7 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2023-11-29 03:52:42,942 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 03:52:43,130 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 6 proven. 7 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2023-11-29 03:52:43,130 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:52:43,130 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1016433241] [2023-11-29 03:52:43,131 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 03:52:43,131 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [370615102] [2023-11-29 03:52:43,131 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [370615102] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 03:52:43,131 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 03:52:43,131 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 14 [2023-11-29 03:52:43,131 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [270795872] [2023-11-29 03:52:43,131 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 03:52:43,131 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2023-11-29 03:52:43,132 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:52:43,132 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2023-11-29 03:52:43,132 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=174, Unknown=0, NotChecked=0, Total=210 [2023-11-29 03:52:43,132 INFO L87 Difference]: Start difference. First operand 600 states and 819 transitions. Second operand has 15 states, 14 states have (on average 6.071428571428571) internal successors, (85), 13 states have internal predecessors, (85), 5 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (12), 5 states have call predecessors, (12), 5 states have call successors, (12) [2023-11-29 03:52:45,708 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:52:45,708 INFO L93 Difference]: Finished difference Result 905 states and 1166 transitions. [2023-11-29 03:52:45,709 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2023-11-29 03:52:45,709 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 6.071428571428571) internal successors, (85), 13 states have internal predecessors, (85), 5 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (12), 5 states have call predecessors, (12), 5 states have call successors, (12) Word has length 73 [2023-11-29 03:52:45,709 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:52:45,714 INFO L225 Difference]: With dead ends: 905 [2023-11-29 03:52:45,714 INFO L226 Difference]: Without dead ends: 903 [2023-11-29 03:52:45,715 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 159 GetRequests, 131 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 106 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=220, Invalid=650, Unknown=0, NotChecked=0, Total=870 [2023-11-29 03:52:45,715 INFO L413 NwaCegarLoop]: 105 mSDtfsCounter, 847 mSDsluCounter, 776 mSDsCounter, 0 mSdLazyCounter, 852 mSolverCounterSat, 57 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 852 SdHoareTripleChecker+Valid, 881 SdHoareTripleChecker+Invalid, 909 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 852 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2023-11-29 03:52:45,716 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [852 Valid, 881 Invalid, 909 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 852 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2023-11-29 03:52:45,717 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 903 states. [2023-11-29 03:52:45,820 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 903 to 648. [2023-11-29 03:52:45,821 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 648 states, 528 states have (on average 1.3977272727272727) internal successors, (738), 575 states have internal predecessors, (738), 70 states have call successors, (70), 2 states have call predecessors, (70), 2 states have return successors, (70), 70 states have call predecessors, (70), 70 states have call successors, (70) [2023-11-29 03:52:45,822 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 648 states to 648 states and 878 transitions. [2023-11-29 03:52:45,822 INFO L78 Accepts]: Start accepts. Automaton has 648 states and 878 transitions. Word has length 73 [2023-11-29 03:52:45,823 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:52:45,823 INFO L495 AbstractCegarLoop]: Abstraction has 648 states and 878 transitions. [2023-11-29 03:52:45,823 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 6.071428571428571) internal successors, (85), 13 states have internal predecessors, (85), 5 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (12), 5 states have call predecessors, (12), 5 states have call successors, (12) [2023-11-29 03:52:45,823 INFO L276 IsEmpty]: Start isEmpty. Operand 648 states and 878 transitions. [2023-11-29 03:52:45,824 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2023-11-29 03:52:45,824 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:52:45,824 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:52:45,828 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0345f207-eb94-43c0-b5d4-be7362f6a67e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (49)] Ended with exit code 0 [2023-11-29 03:52:46,024 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 49 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0345f207-eb94-43c0-b5d4-be7362f6a67e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable47 [2023-11-29 03:52:46,025 INFO L420 AbstractCegarLoop]: === Iteration 49 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2023-11-29 03:52:46,025 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:52:46,025 INFO L85 PathProgramCache]: Analyzing trace with hash 1950467609, now seen corresponding path program 1 times [2023-11-29 03:52:46,025 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:52:46,025 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1501157670] [2023-11-29 03:52:46,025 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:52:46,025 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:52:46,033 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 03:52:46,033 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [397821320] [2023-11-29 03:52:46,033 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:52:46,033 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:52:46,033 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0345f207-eb94-43c0-b5d4-be7362f6a67e/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:52:46,034 INFO L229 MonitoredProcess]: Starting monitored process 50 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0345f207-eb94-43c0-b5d4-be7362f6a67e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:52:46,035 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0345f207-eb94-43c0-b5d4-be7362f6a67e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (50)] Waiting until timeout for monitored process [2023-11-29 03:52:46,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:52:46,090 INFO L262 TraceCheckSpWp]: Trace formula consists of 163 conjuncts, 11 conjunts are in the unsatisfiable core [2023-11-29 03:52:46,091 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:52:46,218 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2023-11-29 03:52:46,218 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 03:52:46,405 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2023-11-29 03:52:46,405 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:52:46,405 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1501157670] [2023-11-29 03:52:46,406 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 03:52:46,406 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [397821320] [2023-11-29 03:52:46,406 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [397821320] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 03:52:46,406 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 03:52:46,406 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 14 [2023-11-29 03:52:46,406 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1800901726] [2023-11-29 03:52:46,406 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 03:52:46,407 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2023-11-29 03:52:46,407 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:52:46,407 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2023-11-29 03:52:46,407 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=174, Unknown=0, NotChecked=0, Total=210 [2023-11-29 03:52:46,408 INFO L87 Difference]: Start difference. First operand 648 states and 878 transitions. Second operand has 15 states, 14 states have (on average 6.285714285714286) internal successors, (88), 15 states have internal predecessors, (88), 5 states have call successors, (13), 1 states have call predecessors, (13), 2 states have return successors, (14), 4 states have call predecessors, (14), 5 states have call successors, (14) [2023-11-29 03:52:47,401 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:52:47,402 INFO L93 Difference]: Finished difference Result 964 states and 1187 transitions. [2023-11-29 03:52:47,402 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2023-11-29 03:52:47,402 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 6.285714285714286) internal successors, (88), 15 states have internal predecessors, (88), 5 states have call successors, (13), 1 states have call predecessors, (13), 2 states have return successors, (14), 4 states have call predecessors, (14), 5 states have call successors, (14) Word has length 74 [2023-11-29 03:52:47,403 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:52:47,408 INFO L225 Difference]: With dead ends: 964 [2023-11-29 03:52:47,409 INFO L226 Difference]: Without dead ends: 962 [2023-11-29 03:52:47,410 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 164 GetRequests, 133 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 150 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=267, Invalid=789, Unknown=0, NotChecked=0, Total=1056 [2023-11-29 03:52:47,410 INFO L413 NwaCegarLoop]: 79 mSDtfsCounter, 2005 mSDsluCounter, 417 mSDsCounter, 0 mSdLazyCounter, 520 mSolverCounterSat, 159 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2005 SdHoareTripleChecker+Valid, 496 SdHoareTripleChecker+Invalid, 679 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 159 IncrementalHoareTripleChecker+Valid, 520 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-11-29 03:52:47,410 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2005 Valid, 496 Invalid, 679 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [159 Valid, 520 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-11-29 03:52:47,412 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 962 states. [2023-11-29 03:52:47,581 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 962 to 768. [2023-11-29 03:52:47,582 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 768 states, 633 states have (on average 1.3744075829383886) internal successors, (870), 680 states have internal predecessors, (870), 85 states have call successors, (85), 2 states have call predecessors, (85), 2 states have return successors, (85), 85 states have call predecessors, (85), 85 states have call successors, (85) [2023-11-29 03:52:47,583 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 768 states to 768 states and 1040 transitions. [2023-11-29 03:52:47,583 INFO L78 Accepts]: Start accepts. Automaton has 768 states and 1040 transitions. Word has length 74 [2023-11-29 03:52:47,583 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:52:47,583 INFO L495 AbstractCegarLoop]: Abstraction has 768 states and 1040 transitions. [2023-11-29 03:52:47,584 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 6.285714285714286) internal successors, (88), 15 states have internal predecessors, (88), 5 states have call successors, (13), 1 states have call predecessors, (13), 2 states have return successors, (14), 4 states have call predecessors, (14), 5 states have call successors, (14) [2023-11-29 03:52:47,584 INFO L276 IsEmpty]: Start isEmpty. Operand 768 states and 1040 transitions. [2023-11-29 03:52:47,584 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2023-11-29 03:52:47,584 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:52:47,584 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:52:47,589 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0345f207-eb94-43c0-b5d4-be7362f6a67e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (50)] Ended with exit code 0 [2023-11-29 03:52:47,785 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable48,50 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0345f207-eb94-43c0-b5d4-be7362f6a67e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:52:47,785 INFO L420 AbstractCegarLoop]: === Iteration 50 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2023-11-29 03:52:47,785 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:52:47,786 INFO L85 PathProgramCache]: Analyzing trace with hash 1459101963, now seen corresponding path program 1 times [2023-11-29 03:52:47,786 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:52:47,786 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [440950743] [2023-11-29 03:52:47,786 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:52:47,786 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:52:47,793 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 03:52:47,793 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [255804152] [2023-11-29 03:52:47,793 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:52:47,794 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:52:47,794 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0345f207-eb94-43c0-b5d4-be7362f6a67e/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:52:47,795 INFO L229 MonitoredProcess]: Starting monitored process 51 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0345f207-eb94-43c0-b5d4-be7362f6a67e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:52:47,797 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0345f207-eb94-43c0-b5d4-be7362f6a67e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (51)] Waiting until timeout for monitored process [2023-11-29 03:52:47,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:52:47,861 INFO L262 TraceCheckSpWp]: Trace formula consists of 173 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-29 03:52:47,862 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:52:47,929 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2023-11-29 03:52:47,929 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 03:52:48,024 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2023-11-29 03:52:48,024 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:52:48,025 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [440950743] [2023-11-29 03:52:48,025 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 03:52:48,025 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [255804152] [2023-11-29 03:52:48,025 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [255804152] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 03:52:48,025 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 03:52:48,025 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 11 [2023-11-29 03:52:48,025 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1843877350] [2023-11-29 03:52:48,025 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 03:52:48,026 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-29 03:52:48,026 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:52:48,026 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-29 03:52:48,026 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2023-11-29 03:52:48,026 INFO L87 Difference]: Start difference. First operand 768 states and 1040 transitions. Second operand has 12 states, 11 states have (on average 7.818181818181818) internal successors, (86), 12 states have internal predecessors, (86), 4 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 4 states have call predecessors, (16), 4 states have call successors, (16) [2023-11-29 03:52:49,958 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:52:49,958 INFO L93 Difference]: Finished difference Result 1070 states and 1414 transitions. [2023-11-29 03:52:49,959 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2023-11-29 03:52:49,959 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 7.818181818181818) internal successors, (86), 12 states have internal predecessors, (86), 4 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 4 states have call predecessors, (16), 4 states have call successors, (16) Word has length 80 [2023-11-29 03:52:49,959 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:52:49,964 INFO L225 Difference]: With dead ends: 1070 [2023-11-29 03:52:49,964 INFO L226 Difference]: Without dead ends: 1068 [2023-11-29 03:52:49,965 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 173 GetRequests, 148 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 102 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=207, Invalid=495, Unknown=0, NotChecked=0, Total=702 [2023-11-29 03:52:49,965 INFO L413 NwaCegarLoop]: 118 mSDtfsCounter, 1036 mSDsluCounter, 588 mSDsCounter, 0 mSdLazyCounter, 536 mSolverCounterSat, 78 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1040 SdHoareTripleChecker+Valid, 706 SdHoareTripleChecker+Invalid, 614 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 78 IncrementalHoareTripleChecker+Valid, 536 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2023-11-29 03:52:49,965 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1040 Valid, 706 Invalid, 614 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [78 Valid, 536 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2023-11-29 03:52:49,966 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1068 states. [2023-11-29 03:52:50,107 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1068 to 771. [2023-11-29 03:52:50,108 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 771 states, 635 states have (on average 1.3511811023622047) internal successors, (858), 681 states have internal predecessors, (858), 87 states have call successors, (87), 2 states have call predecessors, (87), 2 states have return successors, (87), 87 states have call predecessors, (87), 87 states have call successors, (87) [2023-11-29 03:52:50,109 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 771 states to 771 states and 1032 transitions. [2023-11-29 03:52:50,109 INFO L78 Accepts]: Start accepts. Automaton has 771 states and 1032 transitions. Word has length 80 [2023-11-29 03:52:50,109 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:52:50,110 INFO L495 AbstractCegarLoop]: Abstraction has 771 states and 1032 transitions. [2023-11-29 03:52:50,110 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 7.818181818181818) internal successors, (86), 12 states have internal predecessors, (86), 4 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 4 states have call predecessors, (16), 4 states have call successors, (16) [2023-11-29 03:52:50,110 INFO L276 IsEmpty]: Start isEmpty. Operand 771 states and 1032 transitions. [2023-11-29 03:52:50,111 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2023-11-29 03:52:50,111 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:52:50,111 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:52:50,117 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0345f207-eb94-43c0-b5d4-be7362f6a67e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (51)] Ended with exit code 0 [2023-11-29 03:52:50,311 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 51 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0345f207-eb94-43c0-b5d4-be7362f6a67e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable49 [2023-11-29 03:52:50,312 INFO L420 AbstractCegarLoop]: === Iteration 51 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2023-11-29 03:52:50,312 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:52:50,312 INFO L85 PathProgramCache]: Analyzing trace with hash -2012479284, now seen corresponding path program 1 times [2023-11-29 03:52:50,312 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:52:50,312 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [869300170] [2023-11-29 03:52:50,312 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:52:50,313 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:52:50,321 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 03:52:50,321 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [157945376] [2023-11-29 03:52:50,321 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:52:50,322 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:52:50,322 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0345f207-eb94-43c0-b5d4-be7362f6a67e/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:52:50,323 INFO L229 MonitoredProcess]: Starting monitored process 52 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0345f207-eb94-43c0-b5d4-be7362f6a67e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:52:50,324 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0345f207-eb94-43c0-b5d4-be7362f6a67e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (52)] Waiting until timeout for monitored process [2023-11-29 03:52:50,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:52:50,384 INFO L262 TraceCheckSpWp]: Trace formula consists of 174 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-29 03:52:50,386 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:52:50,450 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2023-11-29 03:52:50,450 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 03:52:50,450 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:52:50,450 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [869300170] [2023-11-29 03:52:50,450 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 03:52:50,450 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [157945376] [2023-11-29 03:52:50,450 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [157945376] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:52:50,451 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:52:50,451 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-29 03:52:50,451 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [29987713] [2023-11-29 03:52:50,451 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:52:50,451 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-29 03:52:50,451 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:52:50,451 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-29 03:52:50,452 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-11-29 03:52:50,452 INFO L87 Difference]: Start difference. First operand 771 states and 1032 transitions. Second operand has 7 states, 6 states have (on average 7.833333333333333) internal successors, (47), 7 states have internal predecessors, (47), 3 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2023-11-29 03:52:51,356 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:52:51,357 INFO L93 Difference]: Finished difference Result 807 states and 1047 transitions. [2023-11-29 03:52:51,357 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-29 03:52:51,357 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 7.833333333333333) internal successors, (47), 7 states have internal predecessors, (47), 3 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) Word has length 81 [2023-11-29 03:52:51,358 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:52:51,362 INFO L225 Difference]: With dead ends: 807 [2023-11-29 03:52:51,362 INFO L226 Difference]: Without dead ends: 805 [2023-11-29 03:52:51,362 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 75 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=52, Invalid=104, Unknown=0, NotChecked=0, Total=156 [2023-11-29 03:52:51,362 INFO L413 NwaCegarLoop]: 103 mSDtfsCounter, 410 mSDsluCounter, 234 mSDsCounter, 0 mSdLazyCounter, 289 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 410 SdHoareTripleChecker+Valid, 337 SdHoareTripleChecker+Invalid, 307 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 289 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-11-29 03:52:51,362 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [410 Valid, 337 Invalid, 307 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 289 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-11-29 03:52:51,363 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 805 states. [2023-11-29 03:52:51,553 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 805 to 771. [2023-11-29 03:52:51,554 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 771 states, 635 states have (on average 1.3338582677165354) internal successors, (847), 681 states have internal predecessors, (847), 87 states have call successors, (87), 2 states have call predecessors, (87), 2 states have return successors, (87), 87 states have call predecessors, (87), 87 states have call successors, (87) [2023-11-29 03:52:51,555 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 771 states to 771 states and 1021 transitions. [2023-11-29 03:52:51,556 INFO L78 Accepts]: Start accepts. Automaton has 771 states and 1021 transitions. Word has length 81 [2023-11-29 03:52:51,556 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:52:51,556 INFO L495 AbstractCegarLoop]: Abstraction has 771 states and 1021 transitions. [2023-11-29 03:52:51,556 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 7.833333333333333) internal successors, (47), 7 states have internal predecessors, (47), 3 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2023-11-29 03:52:51,556 INFO L276 IsEmpty]: Start isEmpty. Operand 771 states and 1021 transitions. [2023-11-29 03:52:51,557 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2023-11-29 03:52:51,557 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:52:51,557 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:52:51,563 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0345f207-eb94-43c0-b5d4-be7362f6a67e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (52)] Ended with exit code 0 [2023-11-29 03:52:51,757 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50,52 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0345f207-eb94-43c0-b5d4-be7362f6a67e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:52:51,757 INFO L420 AbstractCegarLoop]: === Iteration 52 === Targeting ULTIMATE.startErr32ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2023-11-29 03:52:51,758 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:52:51,758 INFO L85 PathProgramCache]: Analyzing trace with hash 596258316, now seen corresponding path program 1 times [2023-11-29 03:52:51,758 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:52:51,758 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [363603583] [2023-11-29 03:52:51,758 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:52:51,758 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:52:51,766 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 03:52:51,766 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [504536492] [2023-11-29 03:52:51,767 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:52:51,767 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:52:51,767 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0345f207-eb94-43c0-b5d4-be7362f6a67e/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:52:51,768 INFO L229 MonitoredProcess]: Starting monitored process 53 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0345f207-eb94-43c0-b5d4-be7362f6a67e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:52:51,769 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0345f207-eb94-43c0-b5d4-be7362f6a67e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (53)] Waiting until timeout for monitored process [2023-11-29 03:52:51,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:52:51,837 INFO L262 TraceCheckSpWp]: Trace formula consists of 172 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-29 03:52:51,839 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:52:52,014 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2023-11-29 03:52:52,014 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 03:52:52,014 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:52:52,014 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [363603583] [2023-11-29 03:52:52,015 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 03:52:52,015 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [504536492] [2023-11-29 03:52:52,015 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [504536492] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:52:52,015 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:52:52,015 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-29 03:52:52,015 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1892775293] [2023-11-29 03:52:52,015 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:52:52,016 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 03:52:52,016 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:52:52,016 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 03:52:52,016 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2023-11-29 03:52:52,016 INFO L87 Difference]: Start difference. First operand 771 states and 1021 transitions. Second operand has 6 states, 5 states have (on average 9.4) internal successors, (47), 6 states have internal predecessors, (47), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-11-29 03:52:52,322 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:52:52,322 INFO L93 Difference]: Finished difference Result 797 states and 1027 transitions. [2023-11-29 03:52:52,322 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-29 03:52:52,322 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 9.4) internal successors, (47), 6 states have internal predecessors, (47), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 81 [2023-11-29 03:52:52,322 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:52:52,326 INFO L225 Difference]: With dead ends: 797 [2023-11-29 03:52:52,326 INFO L226 Difference]: Without dead ends: 796 [2023-11-29 03:52:52,327 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 76 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=20, Invalid=22, Unknown=0, NotChecked=0, Total=42 [2023-11-29 03:52:52,327 INFO L413 NwaCegarLoop]: 134 mSDtfsCounter, 116 mSDsluCounter, 141 mSDsCounter, 0 mSdLazyCounter, 133 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 116 SdHoareTripleChecker+Valid, 275 SdHoareTripleChecker+Invalid, 138 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 133 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 03:52:52,327 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [116 Valid, 275 Invalid, 138 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 133 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 03:52:52,329 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 796 states. [2023-11-29 03:52:52,488 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 796 to 771. [2023-11-29 03:52:52,489 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 771 states, 635 states have (on average 1.332283464566929) internal successors, (846), 681 states have internal predecessors, (846), 87 states have call successors, (87), 2 states have call predecessors, (87), 2 states have return successors, (87), 87 states have call predecessors, (87), 87 states have call successors, (87) [2023-11-29 03:52:52,491 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 771 states to 771 states and 1020 transitions. [2023-11-29 03:52:52,491 INFO L78 Accepts]: Start accepts. Automaton has 771 states and 1020 transitions. Word has length 81 [2023-11-29 03:52:52,491 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:52:52,491 INFO L495 AbstractCegarLoop]: Abstraction has 771 states and 1020 transitions. [2023-11-29 03:52:52,491 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 9.4) internal successors, (47), 6 states have internal predecessors, (47), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-11-29 03:52:52,491 INFO L276 IsEmpty]: Start isEmpty. Operand 771 states and 1020 transitions. [2023-11-29 03:52:52,492 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2023-11-29 03:52:52,492 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:52:52,492 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:52:52,497 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0345f207-eb94-43c0-b5d4-be7362f6a67e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (53)] Forceful destruction successful, exit code 0 [2023-11-29 03:52:52,692 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51,53 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0345f207-eb94-43c0-b5d4-be7362f6a67e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:52:52,692 INFO L420 AbstractCegarLoop]: === Iteration 53 === Targeting ULTIMATE.startErr33ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2023-11-29 03:52:52,693 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:52:52,693 INFO L85 PathProgramCache]: Analyzing trace with hash 1304138771, now seen corresponding path program 1 times [2023-11-29 03:52:52,693 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:52:52,693 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [291438303] [2023-11-29 03:52:52,693 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:52:52,693 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:52:52,701 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 03:52:52,701 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [201299823] [2023-11-29 03:52:52,702 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:52:52,702 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:52:52,702 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0345f207-eb94-43c0-b5d4-be7362f6a67e/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:52:52,703 INFO L229 MonitoredProcess]: Starting monitored process 54 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0345f207-eb94-43c0-b5d4-be7362f6a67e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:52:52,705 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0345f207-eb94-43c0-b5d4-be7362f6a67e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (54)] Waiting until timeout for monitored process [2023-11-29 03:52:52,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:52:52,767 INFO L262 TraceCheckSpWp]: Trace formula consists of 173 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-29 03:52:52,768 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:52:52,948 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2023-11-29 03:52:52,948 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 03:52:53,026 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:52:53,026 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [291438303] [2023-11-29 03:52:53,026 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 03:52:53,026 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [201299823] [2023-11-29 03:52:53,026 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [201299823] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 03:52:53,026 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 03:52:53,026 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2023-11-29 03:52:53,027 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [261013858] [2023-11-29 03:52:53,027 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 03:52:53,027 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 03:52:53,027 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:52:53,027 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 03:52:53,027 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2023-11-29 03:52:53,028 INFO L87 Difference]: Start difference. First operand 771 states and 1020 transitions. Second operand has 6 states, 5 states have (on average 9.6) internal successors, (48), 6 states have internal predecessors, (48), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-11-29 03:52:53,464 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:52:53,464 INFO L93 Difference]: Finished difference Result 907 states and 1156 transitions. [2023-11-29 03:52:53,465 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-29 03:52:53,465 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 9.6) internal successors, (48), 6 states have internal predecessors, (48), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 82 [2023-11-29 03:52:53,465 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:52:53,469 INFO L225 Difference]: With dead ends: 907 [2023-11-29 03:52:53,469 INFO L226 Difference]: Without dead ends: 906 [2023-11-29 03:52:53,469 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 98 GetRequests, 92 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2023-11-29 03:52:53,469 INFO L413 NwaCegarLoop]: 104 mSDtfsCounter, 174 mSDsluCounter, 287 mSDsCounter, 0 mSdLazyCounter, 203 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 186 SdHoareTripleChecker+Valid, 391 SdHoareTripleChecker+Invalid, 204 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 203 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-29 03:52:53,470 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [186 Valid, 391 Invalid, 204 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 203 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-29 03:52:53,471 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 906 states. [2023-11-29 03:52:53,660 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 906 to 780. [2023-11-29 03:52:53,660 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 780 states, 644 states have (on average 1.329192546583851) internal successors, (856), 690 states have internal predecessors, (856), 87 states have call successors, (87), 2 states have call predecessors, (87), 2 states have return successors, (87), 87 states have call predecessors, (87), 87 states have call successors, (87) [2023-11-29 03:52:53,663 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 780 states to 780 states and 1030 transitions. [2023-11-29 03:52:53,663 INFO L78 Accepts]: Start accepts. Automaton has 780 states and 1030 transitions. Word has length 82 [2023-11-29 03:52:53,663 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:52:53,663 INFO L495 AbstractCegarLoop]: Abstraction has 780 states and 1030 transitions. [2023-11-29 03:52:53,663 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 9.6) internal successors, (48), 6 states have internal predecessors, (48), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-11-29 03:52:53,664 INFO L276 IsEmpty]: Start isEmpty. Operand 780 states and 1030 transitions. [2023-11-29 03:52:53,664 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2023-11-29 03:52:53,665 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:52:53,665 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:52:53,670 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0345f207-eb94-43c0-b5d4-be7362f6a67e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (54)] Forceful destruction successful, exit code 0 [2023-11-29 03:52:53,865 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52,54 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0345f207-eb94-43c0-b5d4-be7362f6a67e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:52:53,865 INFO L420 AbstractCegarLoop]: === Iteration 54 === Targeting ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2023-11-29 03:52:53,866 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:52:53,866 INFO L85 PathProgramCache]: Analyzing trace with hash -321743152, now seen corresponding path program 1 times [2023-11-29 03:52:53,866 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:52:53,866 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [977271037] [2023-11-29 03:52:53,866 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:52:53,866 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:52:53,874 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 03:52:53,875 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2101880333] [2023-11-29 03:52:53,875 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:52:53,875 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:52:53,875 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0345f207-eb94-43c0-b5d4-be7362f6a67e/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:52:53,876 INFO L229 MonitoredProcess]: Starting monitored process 55 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0345f207-eb94-43c0-b5d4-be7362f6a67e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:52:53,877 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0345f207-eb94-43c0-b5d4-be7362f6a67e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (55)] Waiting until timeout for monitored process [2023-11-29 03:52:53,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:52:53,931 INFO L262 TraceCheckSpWp]: Trace formula consists of 177 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-29 03:52:53,933 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:52:54,026 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2023-11-29 03:52:54,026 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 03:52:54,144 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2023-11-29 03:52:54,144 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:52:54,144 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [977271037] [2023-11-29 03:52:54,144 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 03:52:54,144 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2101880333] [2023-11-29 03:52:54,144 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2101880333] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 03:52:54,145 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 03:52:54,145 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 13 [2023-11-29 03:52:54,145 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1097253143] [2023-11-29 03:52:54,145 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 03:52:54,145 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-11-29 03:52:54,146 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:52:54,146 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-11-29 03:52:54,146 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=148, Unknown=0, NotChecked=0, Total=182 [2023-11-29 03:52:54,146 INFO L87 Difference]: Start difference. First operand 780 states and 1030 transitions. Second operand has 14 states, 13 states have (on average 7.230769230769231) internal successors, (94), 14 states have internal predecessors, (94), 4 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 4 states have call predecessors, (16), 4 states have call successors, (16) [2023-11-29 03:52:55,913 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:52:55,914 INFO L93 Difference]: Finished difference Result 1226 states and 1573 transitions. [2023-11-29 03:52:55,914 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2023-11-29 03:52:55,914 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 7.230769230769231) internal successors, (94), 14 states have internal predecessors, (94), 4 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 4 states have call predecessors, (16), 4 states have call successors, (16) Word has length 84 [2023-11-29 03:52:55,914 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:52:55,920 INFO L225 Difference]: With dead ends: 1226 [2023-11-29 03:52:55,920 INFO L226 Difference]: Without dead ends: 1224 [2023-11-29 03:52:55,920 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 195 GetRequests, 154 SyntacticMatches, 0 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 420 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=545, Invalid=1261, Unknown=0, NotChecked=0, Total=1806 [2023-11-29 03:52:55,921 INFO L413 NwaCegarLoop]: 77 mSDtfsCounter, 1727 mSDsluCounter, 396 mSDsCounter, 0 mSdLazyCounter, 523 mSolverCounterSat, 144 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1727 SdHoareTripleChecker+Valid, 473 SdHoareTripleChecker+Invalid, 667 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 144 IncrementalHoareTripleChecker+Valid, 523 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2023-11-29 03:52:55,921 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1727 Valid, 473 Invalid, 667 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [144 Valid, 523 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2023-11-29 03:52:55,922 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1224 states. [2023-11-29 03:52:56,122 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1224 to 1129. [2023-11-29 03:52:56,123 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1129 states, 949 states have (on average 1.3308746048472075) internal successors, (1263), 994 states have internal predecessors, (1263), 132 states have call successors, (132), 2 states have call predecessors, (132), 2 states have return successors, (132), 132 states have call predecessors, (132), 132 states have call successors, (132) [2023-11-29 03:52:56,125 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1129 states to 1129 states and 1527 transitions. [2023-11-29 03:52:56,125 INFO L78 Accepts]: Start accepts. Automaton has 1129 states and 1527 transitions. Word has length 84 [2023-11-29 03:52:56,126 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:52:56,126 INFO L495 AbstractCegarLoop]: Abstraction has 1129 states and 1527 transitions. [2023-11-29 03:52:56,126 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 7.230769230769231) internal successors, (94), 14 states have internal predecessors, (94), 4 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 4 states have call predecessors, (16), 4 states have call successors, (16) [2023-11-29 03:52:56,126 INFO L276 IsEmpty]: Start isEmpty. Operand 1129 states and 1527 transitions. [2023-11-29 03:52:56,126 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2023-11-29 03:52:56,126 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:52:56,126 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:52:56,130 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0345f207-eb94-43c0-b5d4-be7362f6a67e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (55)] Forceful destruction successful, exit code 0 [2023-11-29 03:52:56,327 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable53,55 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0345f207-eb94-43c0-b5d4-be7362f6a67e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:52:56,327 INFO L420 AbstractCegarLoop]: === Iteration 55 === Targeting ULTIMATE.startErr35ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2023-11-29 03:52:56,327 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:52:56,327 INFO L85 PathProgramCache]: Analyzing trace with hash -853086347, now seen corresponding path program 1 times [2023-11-29 03:52:56,328 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:52:56,328 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [916080670] [2023-11-29 03:52:56,328 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:52:56,328 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:52:56,334 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 03:52:56,335 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1264041126] [2023-11-29 03:52:56,335 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:52:56,335 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:52:56,335 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0345f207-eb94-43c0-b5d4-be7362f6a67e/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:52:56,336 INFO L229 MonitoredProcess]: Starting monitored process 56 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0345f207-eb94-43c0-b5d4-be7362f6a67e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:52:56,337 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0345f207-eb94-43c0-b5d4-be7362f6a67e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (56)] Waiting until timeout for monitored process [2023-11-29 03:52:56,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:52:56,395 INFO L262 TraceCheckSpWp]: Trace formula consists of 175 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-29 03:52:56,397 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:52:56,670 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2023-11-29 03:52:56,671 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 03:52:56,671 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:52:56,671 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [916080670] [2023-11-29 03:52:56,671 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 03:52:56,671 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1264041126] [2023-11-29 03:52:56,671 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1264041126] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:52:56,671 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:52:56,671 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-29 03:52:56,672 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1651552914] [2023-11-29 03:52:56,672 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:52:56,672 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-29 03:52:56,672 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:52:56,673 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-29 03:52:56,673 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2023-11-29 03:52:56,673 INFO L87 Difference]: Start difference. First operand 1129 states and 1527 transitions. Second operand has 7 states, 6 states have (on average 8.333333333333334) internal successors, (50), 7 states have internal predecessors, (50), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-11-29 03:52:57,111 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:52:57,111 INFO L93 Difference]: Finished difference Result 1153 states and 1533 transitions. [2023-11-29 03:52:57,111 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-29 03:52:57,112 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 8.333333333333334) internal successors, (50), 7 states have internal predecessors, (50), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 84 [2023-11-29 03:52:57,112 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:52:57,119 INFO L225 Difference]: With dead ends: 1153 [2023-11-29 03:52:57,119 INFO L226 Difference]: Without dead ends: 1152 [2023-11-29 03:52:57,119 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 84 GetRequests, 78 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-11-29 03:52:57,120 INFO L413 NwaCegarLoop]: 131 mSDtfsCounter, 86 mSDsluCounter, 215 mSDsCounter, 0 mSdLazyCounter, 238 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 86 SdHoareTripleChecker+Valid, 346 SdHoareTripleChecker+Invalid, 243 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 238 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-29 03:52:57,120 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [86 Valid, 346 Invalid, 243 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 238 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-29 03:52:57,121 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1152 states. [2023-11-29 03:52:57,335 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1152 to 1129. [2023-11-29 03:52:57,336 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1129 states, 949 states have (on average 1.3298208640674394) internal successors, (1262), 994 states have internal predecessors, (1262), 132 states have call successors, (132), 2 states have call predecessors, (132), 2 states have return successors, (132), 132 states have call predecessors, (132), 132 states have call successors, (132) [2023-11-29 03:52:57,338 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1129 states to 1129 states and 1526 transitions. [2023-11-29 03:52:57,338 INFO L78 Accepts]: Start accepts. Automaton has 1129 states and 1526 transitions. Word has length 84 [2023-11-29 03:52:57,339 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:52:57,339 INFO L495 AbstractCegarLoop]: Abstraction has 1129 states and 1526 transitions. [2023-11-29 03:52:57,339 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 8.333333333333334) internal successors, (50), 7 states have internal predecessors, (50), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-11-29 03:52:57,339 INFO L276 IsEmpty]: Start isEmpty. Operand 1129 states and 1526 transitions. [2023-11-29 03:52:57,339 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2023-11-29 03:52:57,340 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:52:57,340 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:52:57,345 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0345f207-eb94-43c0-b5d4-be7362f6a67e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (56)] Ended with exit code 0 [2023-11-29 03:52:57,540 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 56 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0345f207-eb94-43c0-b5d4-be7362f6a67e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable54 [2023-11-29 03:52:57,540 INFO L420 AbstractCegarLoop]: === Iteration 56 === Targeting ULTIMATE.startErr28ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2023-11-29 03:52:57,541 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:52:57,541 INFO L85 PathProgramCache]: Analyzing trace with hash 1639016631, now seen corresponding path program 1 times [2023-11-29 03:52:57,541 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:52:57,541 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1845383450] [2023-11-29 03:52:57,541 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:52:57,541 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:52:57,547 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 03:52:57,548 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1839888289] [2023-11-29 03:52:57,548 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:52:57,548 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:52:57,548 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0345f207-eb94-43c0-b5d4-be7362f6a67e/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:52:57,549 INFO L229 MonitoredProcess]: Starting monitored process 57 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0345f207-eb94-43c0-b5d4-be7362f6a67e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:52:57,550 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0345f207-eb94-43c0-b5d4-be7362f6a67e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (57)] Waiting until timeout for monitored process [2023-11-29 03:52:57,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:52:57,608 INFO L262 TraceCheckSpWp]: Trace formula consists of 194 conjuncts, 12 conjunts are in the unsatisfiable core [2023-11-29 03:52:57,610 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:52:57,797 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 13 proven. 6 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2023-11-29 03:52:57,797 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 03:52:57,939 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 9 proven. 10 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2023-11-29 03:52:57,939 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:52:57,939 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1845383450] [2023-11-29 03:52:57,939 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 03:52:57,939 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1839888289] [2023-11-29 03:52:57,939 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1839888289] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 03:52:57,939 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 03:52:57,939 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 16 [2023-11-29 03:52:57,940 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [764205144] [2023-11-29 03:52:57,940 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 03:52:57,940 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-11-29 03:52:57,940 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:52:57,940 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-11-29 03:52:57,940 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=201, Unknown=0, NotChecked=0, Total=240 [2023-11-29 03:52:57,941 INFO L87 Difference]: Start difference. First operand 1129 states and 1526 transitions. Second operand has 16 states, 16 states have (on average 6.125) internal successors, (98), 14 states have internal predecessors, (98), 5 states have call successors, (14), 1 states have call predecessors, (14), 2 states have return successors, (15), 5 states have call predecessors, (15), 5 states have call successors, (15) [2023-11-29 03:52:58,907 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:52:58,907 INFO L93 Difference]: Finished difference Result 1868 states and 2519 transitions. [2023-11-29 03:52:58,908 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-11-29 03:52:58,908 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 6.125) internal successors, (98), 14 states have internal predecessors, (98), 5 states have call successors, (14), 1 states have call predecessors, (14), 2 states have return successors, (15), 5 states have call predecessors, (15), 5 states have call successors, (15) Word has length 90 [2023-11-29 03:52:58,908 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:52:58,913 INFO L225 Difference]: With dead ends: 1868 [2023-11-29 03:52:58,913 INFO L226 Difference]: Without dead ends: 1221 [2023-11-29 03:52:58,914 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 190 GetRequests, 163 SyntacticMatches, 1 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 86 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=160, Invalid=596, Unknown=0, NotChecked=0, Total=756 [2023-11-29 03:52:58,914 INFO L413 NwaCegarLoop]: 102 mSDtfsCounter, 716 mSDsluCounter, 718 mSDsCounter, 0 mSdLazyCounter, 872 mSolverCounterSat, 45 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 716 SdHoareTripleChecker+Valid, 820 SdHoareTripleChecker+Invalid, 917 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 872 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-11-29 03:52:58,914 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [716 Valid, 820 Invalid, 917 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 872 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-11-29 03:52:58,915 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1221 states. [2023-11-29 03:52:59,151 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1221 to 1117. [2023-11-29 03:52:59,152 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1117 states, 937 states have (on average 1.3308431163287087) internal successors, (1247), 982 states have internal predecessors, (1247), 132 states have call successors, (132), 2 states have call predecessors, (132), 2 states have return successors, (132), 132 states have call predecessors, (132), 132 states have call successors, (132) [2023-11-29 03:52:59,155 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1117 states to 1117 states and 1511 transitions. [2023-11-29 03:52:59,155 INFO L78 Accepts]: Start accepts. Automaton has 1117 states and 1511 transitions. Word has length 90 [2023-11-29 03:52:59,156 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:52:59,156 INFO L495 AbstractCegarLoop]: Abstraction has 1117 states and 1511 transitions. [2023-11-29 03:52:59,156 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 6.125) internal successors, (98), 14 states have internal predecessors, (98), 5 states have call successors, (14), 1 states have call predecessors, (14), 2 states have return successors, (15), 5 states have call predecessors, (15), 5 states have call successors, (15) [2023-11-29 03:52:59,156 INFO L276 IsEmpty]: Start isEmpty. Operand 1117 states and 1511 transitions. [2023-11-29 03:52:59,157 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2023-11-29 03:52:59,157 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:52:59,157 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:52:59,162 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0345f207-eb94-43c0-b5d4-be7362f6a67e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (57)] Ended with exit code 0 [2023-11-29 03:52:59,357 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 57 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0345f207-eb94-43c0-b5d4-be7362f6a67e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable55 [2023-11-29 03:52:59,358 INFO L420 AbstractCegarLoop]: === Iteration 57 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2023-11-29 03:52:59,358 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:52:59,358 INFO L85 PathProgramCache]: Analyzing trace with hash 1247677153, now seen corresponding path program 1 times [2023-11-29 03:52:59,359 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:52:59,359 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1692067896] [2023-11-29 03:52:59,359 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:52:59,359 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:52:59,369 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 03:52:59,369 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [993790708] [2023-11-29 03:52:59,369 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:52:59,370 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:52:59,370 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0345f207-eb94-43c0-b5d4-be7362f6a67e/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:52:59,371 INFO L229 MonitoredProcess]: Starting monitored process 58 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0345f207-eb94-43c0-b5d4-be7362f6a67e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:52:59,372 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0345f207-eb94-43c0-b5d4-be7362f6a67e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (58)] Waiting until timeout for monitored process [2023-11-29 03:52:59,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:52:59,433 INFO L262 TraceCheckSpWp]: Trace formula consists of 191 conjuncts, 15 conjunts are in the unsatisfiable core [2023-11-29 03:52:59,435 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:52:59,641 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 8 proven. 11 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2023-11-29 03:52:59,641 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 03:52:59,867 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 8 proven. 11 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2023-11-29 03:52:59,867 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:52:59,868 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1692067896] [2023-11-29 03:52:59,868 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 03:52:59,868 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [993790708] [2023-11-29 03:52:59,868 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [993790708] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 03:52:59,868 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 03:52:59,868 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 15 [2023-11-29 03:52:59,868 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [423080101] [2023-11-29 03:52:59,868 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 03:52:59,869 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2023-11-29 03:52:59,869 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:52:59,869 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2023-11-29 03:52:59,869 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=172, Unknown=0, NotChecked=0, Total=210 [2023-11-29 03:52:59,870 INFO L87 Difference]: Start difference. First operand 1117 states and 1511 transitions. Second operand has 15 states, 15 states have (on average 5.866666666666666) internal successors, (88), 15 states have internal predecessors, (88), 5 states have call successors, (15), 1 states have call predecessors, (15), 2 states have return successors, (16), 4 states have call predecessors, (16), 5 states have call successors, (16) [2023-11-29 03:53:00,839 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:53:00,839 INFO L93 Difference]: Finished difference Result 1959 states and 2644 transitions. [2023-11-29 03:53:00,840 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-11-29 03:53:00,840 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 5.866666666666666) internal successors, (88), 15 states have internal predecessors, (88), 5 states have call successors, (15), 1 states have call predecessors, (15), 2 states have return successors, (16), 4 states have call predecessors, (16), 5 states have call successors, (16) Word has length 90 [2023-11-29 03:53:00,840 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:53:00,844 INFO L225 Difference]: With dead ends: 1959 [2023-11-29 03:53:00,844 INFO L226 Difference]: Without dead ends: 1229 [2023-11-29 03:53:00,846 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 191 GetRequests, 163 SyntacticMatches, 2 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 112 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=158, Invalid=598, Unknown=0, NotChecked=0, Total=756 [2023-11-29 03:53:00,846 INFO L413 NwaCegarLoop]: 102 mSDtfsCounter, 440 mSDsluCounter, 784 mSDsCounter, 0 mSdLazyCounter, 739 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 444 SdHoareTripleChecker+Valid, 886 SdHoareTripleChecker+Invalid, 769 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 739 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-11-29 03:53:00,847 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [444 Valid, 886 Invalid, 769 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 739 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-11-29 03:53:00,848 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1229 states. [2023-11-29 03:53:01,191 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1229 to 1203. [2023-11-29 03:53:01,192 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1203 states, 1012 states have (on average 1.3181818181818181) internal successors, (1334), 1057 states have internal predecessors, (1334), 143 states have call successors, (143), 2 states have call predecessors, (143), 2 states have return successors, (143), 143 states have call predecessors, (143), 143 states have call successors, (143) [2023-11-29 03:53:01,194 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1203 states to 1203 states and 1620 transitions. [2023-11-29 03:53:01,194 INFO L78 Accepts]: Start accepts. Automaton has 1203 states and 1620 transitions. Word has length 90 [2023-11-29 03:53:01,195 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:53:01,195 INFO L495 AbstractCegarLoop]: Abstraction has 1203 states and 1620 transitions. [2023-11-29 03:53:01,195 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 5.866666666666666) internal successors, (88), 15 states have internal predecessors, (88), 5 states have call successors, (15), 1 states have call predecessors, (15), 2 states have return successors, (16), 4 states have call predecessors, (16), 5 states have call successors, (16) [2023-11-29 03:53:01,195 INFO L276 IsEmpty]: Start isEmpty. Operand 1203 states and 1620 transitions. [2023-11-29 03:53:01,195 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2023-11-29 03:53:01,195 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:53:01,196 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:53:01,200 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0345f207-eb94-43c0-b5d4-be7362f6a67e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (58)] Ended with exit code 0 [2023-11-29 03:53:01,396 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable56,58 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0345f207-eb94-43c0-b5d4-be7362f6a67e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:53:01,396 INFO L420 AbstractCegarLoop]: === Iteration 58 === Targeting ULTIMATE.startErr40ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2023-11-29 03:53:01,396 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:53:01,396 INFO L85 PathProgramCache]: Analyzing trace with hash 68039188, now seen corresponding path program 1 times [2023-11-29 03:53:01,397 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:53:01,397 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [229689303] [2023-11-29 03:53:01,397 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:53:01,397 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:53:01,403 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 03:53:01,404 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2002667171] [2023-11-29 03:53:01,404 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:53:01,404 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:53:01,404 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0345f207-eb94-43c0-b5d4-be7362f6a67e/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:53:01,405 INFO L229 MonitoredProcess]: Starting monitored process 59 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0345f207-eb94-43c0-b5d4-be7362f6a67e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:53:01,406 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0345f207-eb94-43c0-b5d4-be7362f6a67e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (59)] Waiting until timeout for monitored process [2023-11-29 03:53:01,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:53:01,476 INFO L262 TraceCheckSpWp]: Trace formula consists of 185 conjuncts, 32 conjunts are in the unsatisfiable core [2023-11-29 03:53:01,478 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:53:02,056 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 3 proven. 10 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2023-11-29 03:53:02,057 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 03:53:06,341 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:53:06,342 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [229689303] [2023-11-29 03:53:06,342 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 03:53:06,342 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2002667171] [2023-11-29 03:53:06,342 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2002667171] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 03:53:06,342 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 03:53:06,342 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2023-11-29 03:53:06,342 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1388329993] [2023-11-29 03:53:06,343 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 03:53:06,343 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-29 03:53:06,343 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:53:06,343 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-29 03:53:06,344 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=225, Unknown=1, NotChecked=0, Total=272 [2023-11-29 03:53:06,344 INFO L87 Difference]: Start difference. First operand 1203 states and 1620 transitions. Second operand has 12 states, 11 states have (on average 5.454545454545454) internal successors, (60), 11 states have internal predecessors, (60), 3 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2023-11-29 03:53:07,761 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:53:07,762 INFO L93 Difference]: Finished difference Result 1266 states and 1647 transitions. [2023-11-29 03:53:07,762 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-29 03:53:07,762 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 5.454545454545454) internal successors, (60), 11 states have internal predecessors, (60), 3 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) Word has length 91 [2023-11-29 03:53:07,762 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:53:07,766 INFO L225 Difference]: With dead ends: 1266 [2023-11-29 03:53:07,766 INFO L226 Difference]: Without dead ends: 1264 [2023-11-29 03:53:07,766 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 124 GetRequests, 101 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 4.4s TimeCoverageRelationStatistics Valid=104, Invalid=495, Unknown=1, NotChecked=0, Total=600 [2023-11-29 03:53:07,766 INFO L413 NwaCegarLoop]: 81 mSDtfsCounter, 647 mSDsluCounter, 527 mSDsCounter, 0 mSdLazyCounter, 1179 mSolverCounterSat, 48 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 651 SdHoareTripleChecker+Valid, 608 SdHoareTripleChecker+Invalid, 1227 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 48 IncrementalHoareTripleChecker+Valid, 1179 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2023-11-29 03:53:07,767 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [651 Valid, 608 Invalid, 1227 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [48 Valid, 1179 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2023-11-29 03:53:07,768 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1264 states. [2023-11-29 03:53:07,966 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1264 to 1209. [2023-11-29 03:53:07,967 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1209 states, 1018 states have (on average 1.3163064833005893) internal successors, (1340), 1063 states have internal predecessors, (1340), 143 states have call successors, (143), 2 states have call predecessors, (143), 2 states have return successors, (143), 143 states have call predecessors, (143), 143 states have call successors, (143) [2023-11-29 03:53:07,970 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1209 states to 1209 states and 1626 transitions. [2023-11-29 03:53:07,970 INFO L78 Accepts]: Start accepts. Automaton has 1209 states and 1626 transitions. Word has length 91 [2023-11-29 03:53:07,970 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:53:07,970 INFO L495 AbstractCegarLoop]: Abstraction has 1209 states and 1626 transitions. [2023-11-29 03:53:07,970 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 5.454545454545454) internal successors, (60), 11 states have internal predecessors, (60), 3 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2023-11-29 03:53:07,971 INFO L276 IsEmpty]: Start isEmpty. Operand 1209 states and 1626 transitions. [2023-11-29 03:53:07,971 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2023-11-29 03:53:07,971 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:53:07,972 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:53:07,976 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0345f207-eb94-43c0-b5d4-be7362f6a67e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (59)] Ended with exit code 0 [2023-11-29 03:53:08,172 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable57,59 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0345f207-eb94-43c0-b5d4-be7362f6a67e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:53:08,172 INFO L420 AbstractCegarLoop]: === Iteration 59 === Targeting ULTIMATE.startErr42ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2023-11-29 03:53:08,172 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:53:08,173 INFO L85 PathProgramCache]: Analyzing trace with hash 961155926, now seen corresponding path program 1 times [2023-11-29 03:53:08,173 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:53:08,173 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1214944679] [2023-11-29 03:53:08,173 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:53:08,173 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:53:08,180 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 03:53:08,180 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [850045233] [2023-11-29 03:53:08,180 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:53:08,181 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:53:08,181 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0345f207-eb94-43c0-b5d4-be7362f6a67e/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:53:08,181 INFO L229 MonitoredProcess]: Starting monitored process 60 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0345f207-eb94-43c0-b5d4-be7362f6a67e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:53:08,183 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0345f207-eb94-43c0-b5d4-be7362f6a67e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (60)] Waiting until timeout for monitored process [2023-11-29 03:53:08,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:53:08,234 INFO L262 TraceCheckSpWp]: Trace formula consists of 187 conjuncts, 12 conjunts are in the unsatisfiable core [2023-11-29 03:53:08,235 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:53:08,682 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 3 proven. 10 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2023-11-29 03:53:08,682 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 03:53:08,877 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:53:08,877 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1214944679] [2023-11-29 03:53:08,877 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 03:53:08,877 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [850045233] [2023-11-29 03:53:08,877 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [850045233] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 03:53:08,877 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 03:53:08,877 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2023-11-29 03:53:08,878 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2123293852] [2023-11-29 03:53:08,878 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 03:53:08,878 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-29 03:53:08,878 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:53:08,878 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-29 03:53:08,878 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=99, Unknown=0, NotChecked=0, Total=132 [2023-11-29 03:53:08,879 INFO L87 Difference]: Start difference. First operand 1209 states and 1626 transitions. Second operand has 9 states, 8 states have (on average 7.75) internal successors, (62), 8 states have internal predecessors, (62), 3 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2023-11-29 03:53:10,004 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:53:10,004 INFO L93 Difference]: Finished difference Result 1643 states and 2164 transitions. [2023-11-29 03:53:10,005 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-29 03:53:10,005 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 7.75) internal successors, (62), 8 states have internal predecessors, (62), 3 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) Word has length 93 [2023-11-29 03:53:10,005 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:53:10,009 INFO L225 Difference]: With dead ends: 1643 [2023-11-29 03:53:10,009 INFO L226 Difference]: Without dead ends: 1641 [2023-11-29 03:53:10,009 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 125 GetRequests, 110 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=69, Invalid=203, Unknown=0, NotChecked=0, Total=272 [2023-11-29 03:53:10,010 INFO L413 NwaCegarLoop]: 153 mSDtfsCounter, 347 mSDsluCounter, 720 mSDsCounter, 0 mSdLazyCounter, 789 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 359 SdHoareTripleChecker+Valid, 873 SdHoareTripleChecker+Invalid, 807 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 789 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-11-29 03:53:10,010 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [359 Valid, 873 Invalid, 807 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 789 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-11-29 03:53:10,012 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1641 states. [2023-11-29 03:53:10,278 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1641 to 1319. [2023-11-29 03:53:10,279 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1319 states, 1117 states have (on average 1.3088630259623992) internal successors, (1462), 1162 states have internal predecessors, (1462), 154 states have call successors, (154), 2 states have call predecessors, (154), 2 states have return successors, (154), 154 states have call predecessors, (154), 154 states have call successors, (154) [2023-11-29 03:53:10,281 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1319 states to 1319 states and 1770 transitions. [2023-11-29 03:53:10,282 INFO L78 Accepts]: Start accepts. Automaton has 1319 states and 1770 transitions. Word has length 93 [2023-11-29 03:53:10,282 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:53:10,282 INFO L495 AbstractCegarLoop]: Abstraction has 1319 states and 1770 transitions. [2023-11-29 03:53:10,282 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 7.75) internal successors, (62), 8 states have internal predecessors, (62), 3 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2023-11-29 03:53:10,282 INFO L276 IsEmpty]: Start isEmpty. Operand 1319 states and 1770 transitions. [2023-11-29 03:53:10,283 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2023-11-29 03:53:10,283 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:53:10,283 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:53:10,288 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0345f207-eb94-43c0-b5d4-be7362f6a67e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (60)] Ended with exit code 0 [2023-11-29 03:53:10,483 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 60 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0345f207-eb94-43c0-b5d4-be7362f6a67e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable58 [2023-11-29 03:53:10,484 INFO L420 AbstractCegarLoop]: === Iteration 60 === Targeting ULTIMATE.startErr43ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2023-11-29 03:53:10,484 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:53:10,484 INFO L85 PathProgramCache]: Analyzing trace with hash -268937184, now seen corresponding path program 1 times [2023-11-29 03:53:10,484 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:53:10,484 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [30510684] [2023-11-29 03:53:10,484 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:53:10,485 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:53:10,491 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 03:53:10,491 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1113249523] [2023-11-29 03:53:10,491 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:53:10,491 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:53:10,492 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0345f207-eb94-43c0-b5d4-be7362f6a67e/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:53:10,492 INFO L229 MonitoredProcess]: Starting monitored process 61 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0345f207-eb94-43c0-b5d4-be7362f6a67e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:53:10,493 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0345f207-eb94-43c0-b5d4-be7362f6a67e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (61)] Waiting until timeout for monitored process [2023-11-29 03:53:10,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:53:10,556 INFO L262 TraceCheckSpWp]: Trace formula consists of 188 conjuncts, 12 conjunts are in the unsatisfiable core [2023-11-29 03:53:10,558 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:53:10,974 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 3 proven. 10 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2023-11-29 03:53:10,975 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 03:53:11,150 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:53:11,150 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [30510684] [2023-11-29 03:53:11,150 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 03:53:11,150 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1113249523] [2023-11-29 03:53:11,150 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1113249523] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 03:53:11,151 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 03:53:11,151 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2023-11-29 03:53:11,151 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1925108913] [2023-11-29 03:53:11,151 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 03:53:11,151 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-29 03:53:11,151 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:53:11,152 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-29 03:53:11,152 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=99, Unknown=0, NotChecked=0, Total=132 [2023-11-29 03:53:11,152 INFO L87 Difference]: Start difference. First operand 1319 states and 1770 transitions. Second operand has 9 states, 8 states have (on average 7.875) internal successors, (63), 8 states have internal predecessors, (63), 3 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2023-11-29 03:53:12,253 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:53:12,254 INFO L93 Difference]: Finished difference Result 1643 states and 2162 transitions. [2023-11-29 03:53:12,254 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-29 03:53:12,254 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 7.875) internal successors, (63), 8 states have internal predecessors, (63), 3 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) Word has length 94 [2023-11-29 03:53:12,255 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:53:12,260 INFO L225 Difference]: With dead ends: 1643 [2023-11-29 03:53:12,260 INFO L226 Difference]: Without dead ends: 1641 [2023-11-29 03:53:12,260 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 127 GetRequests, 112 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=69, Invalid=203, Unknown=0, NotChecked=0, Total=272 [2023-11-29 03:53:12,261 INFO L413 NwaCegarLoop]: 153 mSDtfsCounter, 373 mSDsluCounter, 678 mSDsCounter, 0 mSdLazyCounter, 775 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 385 SdHoareTripleChecker+Valid, 831 SdHoareTripleChecker+Invalid, 793 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 775 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-11-29 03:53:12,261 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [385 Valid, 831 Invalid, 793 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 775 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-11-29 03:53:12,263 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1641 states. [2023-11-29 03:53:12,539 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1641 to 1321. [2023-11-29 03:53:12,540 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1321 states, 1119 states have (on average 1.3083109919571045) internal successors, (1464), 1164 states have internal predecessors, (1464), 154 states have call successors, (154), 2 states have call predecessors, (154), 2 states have return successors, (154), 154 states have call predecessors, (154), 154 states have call successors, (154) [2023-11-29 03:53:12,543 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1321 states to 1321 states and 1772 transitions. [2023-11-29 03:53:12,543 INFO L78 Accepts]: Start accepts. Automaton has 1321 states and 1772 transitions. Word has length 94 [2023-11-29 03:53:12,543 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:53:12,543 INFO L495 AbstractCegarLoop]: Abstraction has 1321 states and 1772 transitions. [2023-11-29 03:53:12,543 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 7.875) internal successors, (63), 8 states have internal predecessors, (63), 3 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2023-11-29 03:53:12,543 INFO L276 IsEmpty]: Start isEmpty. Operand 1321 states and 1772 transitions. [2023-11-29 03:53:12,544 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2023-11-29 03:53:12,544 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:53:12,544 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:53:12,549 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0345f207-eb94-43c0-b5d4-be7362f6a67e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (61)] Ended with exit code 0 [2023-11-29 03:53:12,744 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 61 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0345f207-eb94-43c0-b5d4-be7362f6a67e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable59 [2023-11-29 03:53:12,745 INFO L420 AbstractCegarLoop]: === Iteration 61 === Targeting ULTIMATE.startErr44ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2023-11-29 03:53:12,745 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:53:12,745 INFO L85 PathProgramCache]: Analyzing trace with hash 252882072, now seen corresponding path program 1 times [2023-11-29 03:53:12,745 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:53:12,745 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [348258074] [2023-11-29 03:53:12,745 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:53:12,745 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:53:12,753 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 03:53:12,754 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [979972592] [2023-11-29 03:53:12,754 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:53:12,754 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:53:12,754 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0345f207-eb94-43c0-b5d4-be7362f6a67e/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:53:12,755 INFO L229 MonitoredProcess]: Starting monitored process 62 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0345f207-eb94-43c0-b5d4-be7362f6a67e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:53:12,756 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0345f207-eb94-43c0-b5d4-be7362f6a67e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (62)] Waiting until timeout for monitored process [2023-11-29 03:53:12,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:53:12,826 INFO L262 TraceCheckSpWp]: Trace formula consists of 189 conjuncts, 27 conjunts are in the unsatisfiable core [2023-11-29 03:53:12,828 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:53:14,528 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 6 proven. 16 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-11-29 03:53:14,529 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 03:53:15,391 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:53:15,391 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [348258074] [2023-11-29 03:53:15,391 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 03:53:15,392 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [979972592] [2023-11-29 03:53:15,392 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [979972592] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 03:53:15,392 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 03:53:15,392 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16] total 16 [2023-11-29 03:53:15,392 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [214661352] [2023-11-29 03:53:15,392 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 03:53:15,392 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2023-11-29 03:53:15,392 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:53:15,393 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2023-11-29 03:53:15,393 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=91, Invalid=461, Unknown=0, NotChecked=0, Total=552 [2023-11-29 03:53:15,393 INFO L87 Difference]: Start difference. First operand 1321 states and 1772 transitions. Second operand has 17 states, 16 states have (on average 4.1875) internal successors, (67), 16 states have internal predecessors, (67), 4 states have call successors, (8), 1 states have call predecessors, (8), 3 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) [2023-11-29 03:53:21,335 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 03:53:25,601 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 03:53:32,647 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 03:53:36,660 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 03:53:39,985 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:53:39,985 INFO L93 Difference]: Finished difference Result 1361 states and 1788 transitions. [2023-11-29 03:53:39,986 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2023-11-29 03:53:39,986 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 4.1875) internal successors, (67), 16 states have internal predecessors, (67), 4 states have call successors, (8), 1 states have call predecessors, (8), 3 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) Word has length 95 [2023-11-29 03:53:39,986 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:53:39,989 INFO L225 Difference]: With dead ends: 1361 [2023-11-29 03:53:39,989 INFO L226 Difference]: Without dead ends: 1360 [2023-11-29 03:53:39,989 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 135 GetRequests, 102 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 206 ImplicationChecksByTransitivity, 3.7s TimeCoverageRelationStatistics Valid=201, Invalid=989, Unknown=0, NotChecked=0, Total=1190 [2023-11-29 03:53:39,989 INFO L413 NwaCegarLoop]: 71 mSDtfsCounter, 455 mSDsluCounter, 600 mSDsCounter, 0 mSdLazyCounter, 1480 mSolverCounterSat, 31 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 21.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 463 SdHoareTripleChecker+Valid, 671 SdHoareTripleChecker+Invalid, 1515 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 1480 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 21.8s IncrementalHoareTripleChecker+Time [2023-11-29 03:53:39,989 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [463 Valid, 671 Invalid, 1515 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 1480 Invalid, 4 Unknown, 0 Unchecked, 21.8s Time] [2023-11-29 03:53:39,991 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1360 states. [2023-11-29 03:53:40,266 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1360 to 1324. [2023-11-29 03:53:40,267 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1324 states, 1122 states have (on average 1.3074866310160427) internal successors, (1467), 1167 states have internal predecessors, (1467), 154 states have call successors, (154), 2 states have call predecessors, (154), 2 states have return successors, (154), 154 states have call predecessors, (154), 154 states have call successors, (154) [2023-11-29 03:53:40,270 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1324 states to 1324 states and 1775 transitions. [2023-11-29 03:53:40,270 INFO L78 Accepts]: Start accepts. Automaton has 1324 states and 1775 transitions. Word has length 95 [2023-11-29 03:53:40,270 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:53:40,270 INFO L495 AbstractCegarLoop]: Abstraction has 1324 states and 1775 transitions. [2023-11-29 03:53:40,270 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 4.1875) internal successors, (67), 16 states have internal predecessors, (67), 4 states have call successors, (8), 1 states have call predecessors, (8), 3 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) [2023-11-29 03:53:40,270 INFO L276 IsEmpty]: Start isEmpty. Operand 1324 states and 1775 transitions. [2023-11-29 03:53:40,271 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2023-11-29 03:53:40,271 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:53:40,271 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:53:40,278 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0345f207-eb94-43c0-b5d4-be7362f6a67e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (62)] Forceful destruction successful, exit code 0 [2023-11-29 03:53:40,472 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable60,62 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0345f207-eb94-43c0-b5d4-be7362f6a67e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:53:40,472 INFO L420 AbstractCegarLoop]: === Iteration 62 === Targeting ULTIMATE.startErr45ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2023-11-29 03:53:40,472 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:53:40,472 INFO L85 PathProgramCache]: Analyzing trace with hash -750590174, now seen corresponding path program 1 times [2023-11-29 03:53:40,472 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:53:40,473 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2012460182] [2023-11-29 03:53:40,473 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:53:40,473 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:53:40,479 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 03:53:40,479 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2124757566] [2023-11-29 03:53:40,480 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:53:40,480 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:53:40,480 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0345f207-eb94-43c0-b5d4-be7362f6a67e/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:53:40,481 INFO L229 MonitoredProcess]: Starting monitored process 63 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0345f207-eb94-43c0-b5d4-be7362f6a67e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:53:40,482 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0345f207-eb94-43c0-b5d4-be7362f6a67e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (63)] Waiting until timeout for monitored process [2023-11-29 03:53:40,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:53:40,556 INFO L262 TraceCheckSpWp]: Trace formula consists of 190 conjuncts, 47 conjunts are in the unsatisfiable core [2023-11-29 03:53:40,559 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:53:42,283 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 3 proven. 22 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2023-11-29 03:53:42,283 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 03:53:46,655 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:53:46,656 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2012460182] [2023-11-29 03:53:46,656 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 03:53:46,656 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2124757566] [2023-11-29 03:53:46,656 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2124757566] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 03:53:46,656 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 03:53:46,656 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16] total 16 [2023-11-29 03:53:46,656 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1462302676] [2023-11-29 03:53:46,656 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 03:53:46,656 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2023-11-29 03:53:46,656 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:53:46,657 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2023-11-29 03:53:46,657 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=83, Invalid=422, Unknown=1, NotChecked=0, Total=506 [2023-11-29 03:53:46,657 INFO L87 Difference]: Start difference. First operand 1324 states and 1775 transitions. Second operand has 17 states, 16 states have (on average 4.25) internal successors, (68), 16 states have internal predecessors, (68), 5 states have call successors, (8), 1 states have call predecessors, (8), 3 states have return successors, (8), 4 states have call predecessors, (8), 5 states have call successors, (8) [2023-11-29 03:53:49,114 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:53:49,114 INFO L93 Difference]: Finished difference Result 1360 states and 1787 transitions. [2023-11-29 03:53:49,115 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-11-29 03:53:49,115 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 4.25) internal successors, (68), 16 states have internal predecessors, (68), 5 states have call successors, (8), 1 states have call predecessors, (8), 3 states have return successors, (8), 4 states have call predecessors, (8), 5 states have call successors, (8) Word has length 96 [2023-11-29 03:53:49,115 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:53:49,117 INFO L225 Difference]: With dead ends: 1360 [2023-11-29 03:53:49,117 INFO L226 Difference]: Without dead ends: 1359 [2023-11-29 03:53:49,118 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 132 GetRequests, 105 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 147 ImplicationChecksByTransitivity, 4.8s TimeCoverageRelationStatistics Valid=132, Invalid=679, Unknown=1, NotChecked=0, Total=812 [2023-11-29 03:53:49,118 INFO L413 NwaCegarLoop]: 72 mSDtfsCounter, 358 mSDsluCounter, 548 mSDsCounter, 0 mSdLazyCounter, 1669 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 372 SdHoareTripleChecker+Valid, 620 SdHoareTripleChecker+Invalid, 1686 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 1669 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2023-11-29 03:53:49,118 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [372 Valid, 620 Invalid, 1686 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 1669 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2023-11-29 03:53:49,119 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1359 states. [2023-11-29 03:53:49,392 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1359 to 1325. [2023-11-29 03:53:49,394 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1325 states, 1123 states have (on average 1.307212822796082) internal successors, (1468), 1168 states have internal predecessors, (1468), 154 states have call successors, (154), 2 states have call predecessors, (154), 2 states have return successors, (154), 154 states have call predecessors, (154), 154 states have call successors, (154) [2023-11-29 03:53:49,396 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1325 states to 1325 states and 1776 transitions. [2023-11-29 03:53:49,396 INFO L78 Accepts]: Start accepts. Automaton has 1325 states and 1776 transitions. Word has length 96 [2023-11-29 03:53:49,397 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:53:49,397 INFO L495 AbstractCegarLoop]: Abstraction has 1325 states and 1776 transitions. [2023-11-29 03:53:49,397 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 4.25) internal successors, (68), 16 states have internal predecessors, (68), 5 states have call successors, (8), 1 states have call predecessors, (8), 3 states have return successors, (8), 4 states have call predecessors, (8), 5 states have call successors, (8) [2023-11-29 03:53:49,397 INFO L276 IsEmpty]: Start isEmpty. Operand 1325 states and 1776 transitions. [2023-11-29 03:53:49,398 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2023-11-29 03:53:49,398 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:53:49,398 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:53:49,403 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0345f207-eb94-43c0-b5d4-be7362f6a67e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (63)] Forceful destruction successful, exit code 0 [2023-11-29 03:53:49,598 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable61,63 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0345f207-eb94-43c0-b5d4-be7362f6a67e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:53:49,599 INFO L420 AbstractCegarLoop]: === Iteration 63 === Targeting ULTIMATE.startErr46ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2023-11-29 03:53:49,599 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:53:49,599 INFO L85 PathProgramCache]: Analyzing trace with hash -1793458726, now seen corresponding path program 1 times [2023-11-29 03:53:49,599 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:53:49,599 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [148822281] [2023-11-29 03:53:49,599 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:53:49,600 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:53:49,607 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 03:53:49,608 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1979542372] [2023-11-29 03:53:49,608 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:53:49,608 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:53:49,608 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0345f207-eb94-43c0-b5d4-be7362f6a67e/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:53:49,609 INFO L229 MonitoredProcess]: Starting monitored process 64 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0345f207-eb94-43c0-b5d4-be7362f6a67e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:53:49,610 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0345f207-eb94-43c0-b5d4-be7362f6a67e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (64)] Waiting until timeout for monitored process [2023-11-29 03:53:49,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:53:49,671 INFO L262 TraceCheckSpWp]: Trace formula consists of 191 conjuncts, 21 conjunts are in the unsatisfiable core [2023-11-29 03:53:49,673 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:53:50,555 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 3 proven. 10 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2023-11-29 03:53:50,555 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 03:53:52,067 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:53:52,068 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [148822281] [2023-11-29 03:53:52,068 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 03:53:52,068 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1979542372] [2023-11-29 03:53:52,068 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1979542372] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 03:53:52,068 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 03:53:52,068 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2023-11-29 03:53:52,068 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1077376851] [2023-11-29 03:53:52,068 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 03:53:52,069 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-29 03:53:52,069 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:53:52,069 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-29 03:53:52,069 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=212, Unknown=1, NotChecked=0, Total=272 [2023-11-29 03:53:52,070 INFO L87 Difference]: Start difference. First operand 1325 states and 1776 transitions. Second operand has 12 states, 11 states have (on average 6.0) internal successors, (66), 11 states have internal predecessors, (66), 3 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2023-11-29 03:53:53,139 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:53:53,139 INFO L93 Difference]: Finished difference Result 1361 states and 1789 transitions. [2023-11-29 03:53:53,140 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-11-29 03:53:53,140 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 6.0) internal successors, (66), 11 states have internal predecessors, (66), 3 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) Word has length 97 [2023-11-29 03:53:53,140 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:53:53,142 INFO L225 Difference]: With dead ends: 1361 [2023-11-29 03:53:53,142 INFO L226 Difference]: Without dead ends: 1359 [2023-11-29 03:53:53,142 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 134 GetRequests, 113 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 76 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=115, Invalid=390, Unknown=1, NotChecked=0, Total=506 [2023-11-29 03:53:53,143 INFO L413 NwaCegarLoop]: 92 mSDtfsCounter, 313 mSDsluCounter, 531 mSDsCounter, 0 mSdLazyCounter, 941 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 325 SdHoareTripleChecker+Valid, 623 SdHoareTripleChecker+Invalid, 957 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 941 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-11-29 03:53:53,143 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [325 Valid, 623 Invalid, 957 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 941 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-11-29 03:53:53,144 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1359 states. [2023-11-29 03:53:53,373 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1359 to 1326. [2023-11-29 03:53:53,374 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1326 states, 1124 states have (on average 1.304270462633452) internal successors, (1466), 1169 states have internal predecessors, (1466), 154 states have call successors, (154), 2 states have call predecessors, (154), 2 states have return successors, (154), 154 states have call predecessors, (154), 154 states have call successors, (154) [2023-11-29 03:53:53,376 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1326 states to 1326 states and 1774 transitions. [2023-11-29 03:53:53,376 INFO L78 Accepts]: Start accepts. Automaton has 1326 states and 1774 transitions. Word has length 97 [2023-11-29 03:53:53,376 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:53:53,376 INFO L495 AbstractCegarLoop]: Abstraction has 1326 states and 1774 transitions. [2023-11-29 03:53:53,376 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 6.0) internal successors, (66), 11 states have internal predecessors, (66), 3 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2023-11-29 03:53:53,376 INFO L276 IsEmpty]: Start isEmpty. Operand 1326 states and 1774 transitions. [2023-11-29 03:53:53,377 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2023-11-29 03:53:53,377 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:53:53,377 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:53:53,382 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0345f207-eb94-43c0-b5d4-be7362f6a67e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (64)] Forceful destruction successful, exit code 0 [2023-11-29 03:53:53,577 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 64 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0345f207-eb94-43c0-b5d4-be7362f6a67e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable62 [2023-11-29 03:53:53,578 INFO L420 AbstractCegarLoop]: === Iteration 64 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2023-11-29 03:53:53,578 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:53:53,578 INFO L85 PathProgramCache]: Analyzing trace with hash 1921909280, now seen corresponding path program 1 times [2023-11-29 03:53:53,578 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:53:53,578 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2010591153] [2023-11-29 03:53:53,578 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:53:53,578 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:53:53,585 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 03:53:53,585 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [838969493] [2023-11-29 03:53:53,585 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:53:53,585 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:53:53,586 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0345f207-eb94-43c0-b5d4-be7362f6a67e/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:53:53,586 INFO L229 MonitoredProcess]: Starting monitored process 65 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0345f207-eb94-43c0-b5d4-be7362f6a67e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:53:53,587 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0345f207-eb94-43c0-b5d4-be7362f6a67e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (65)] Waiting until timeout for monitored process [2023-11-29 03:53:53,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:53:53,643 INFO L262 TraceCheckSpWp]: Trace formula consists of 189 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-29 03:53:53,645 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:53:53,694 INFO L134 CoverageAnalysis]: Checked inductivity of 102 backedges. 50 proven. 0 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2023-11-29 03:53:53,694 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 03:53:53,694 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:53:53,694 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2010591153] [2023-11-29 03:53:53,695 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 03:53:53,695 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [838969493] [2023-11-29 03:53:53,695 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [838969493] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:53:53,695 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:53:53,695 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-29 03:53:53,695 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [55052580] [2023-11-29 03:53:53,695 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:53:53,695 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 03:53:53,696 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:53:53,696 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 03:53:53,696 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-29 03:53:53,696 INFO L87 Difference]: Start difference. First operand 1326 states and 1774 transitions. Second operand has 5 states, 5 states have (on average 11.6) internal successors, (58), 5 states have internal predecessors, (58), 3 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2023-11-29 03:53:53,936 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:53:53,936 INFO L93 Difference]: Finished difference Result 1892 states and 2536 transitions. [2023-11-29 03:53:53,936 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-29 03:53:53,937 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.6) internal successors, (58), 5 states have internal predecessors, (58), 3 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) Word has length 99 [2023-11-29 03:53:53,937 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:53:53,938 INFO L225 Difference]: With dead ends: 1892 [2023-11-29 03:53:53,938 INFO L226 Difference]: Without dead ends: 896 [2023-11-29 03:53:53,939 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 99 GetRequests, 95 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2023-11-29 03:53:53,940 INFO L413 NwaCegarLoop]: 112 mSDtfsCounter, 26 mSDsluCounter, 221 mSDsCounter, 0 mSdLazyCounter, 110 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 333 SdHoareTripleChecker+Invalid, 111 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 110 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 03:53:53,940 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [26 Valid, 333 Invalid, 111 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 110 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 03:53:53,941 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 896 states. [2023-11-29 03:53:54,104 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 896 to 870. [2023-11-29 03:53:54,104 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 870 states, 728 states have (on average 1.3214285714285714) internal successors, (962), 773 states have internal predecessors, (962), 94 states have call successors, (94), 2 states have call predecessors, (94), 2 states have return successors, (94), 94 states have call predecessors, (94), 94 states have call successors, (94) [2023-11-29 03:53:54,106 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 870 states to 870 states and 1150 transitions. [2023-11-29 03:53:54,106 INFO L78 Accepts]: Start accepts. Automaton has 870 states and 1150 transitions. Word has length 99 [2023-11-29 03:53:54,107 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:53:54,107 INFO L495 AbstractCegarLoop]: Abstraction has 870 states and 1150 transitions. [2023-11-29 03:53:54,107 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.6) internal successors, (58), 5 states have internal predecessors, (58), 3 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2023-11-29 03:53:54,107 INFO L276 IsEmpty]: Start isEmpty. Operand 870 states and 1150 transitions. [2023-11-29 03:53:54,107 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2023-11-29 03:53:54,108 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:53:54,108 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:53:54,113 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0345f207-eb94-43c0-b5d4-be7362f6a67e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (65)] Ended with exit code 0 [2023-11-29 03:53:54,308 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable63,65 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0345f207-eb94-43c0-b5d4-be7362f6a67e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:53:54,308 INFO L420 AbstractCegarLoop]: === Iteration 65 === Targeting ULTIMATE.startErr47ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2023-11-29 03:53:54,309 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:53:54,309 INFO L85 PathProgramCache]: Analyzing trace with hash 237354532, now seen corresponding path program 1 times [2023-11-29 03:53:54,309 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:53:54,309 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [839955578] [2023-11-29 03:53:54,309 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:53:54,309 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:53:54,318 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 03:53:54,318 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1337834990] [2023-11-29 03:53:54,318 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:53:54,318 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:53:54,318 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0345f207-eb94-43c0-b5d4-be7362f6a67e/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:53:54,319 INFO L229 MonitoredProcess]: Starting monitored process 66 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0345f207-eb94-43c0-b5d4-be7362f6a67e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:53:54,320 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0345f207-eb94-43c0-b5d4-be7362f6a67e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (66)] Waiting until timeout for monitored process [2023-11-29 03:53:54,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:53:54,385 INFO L262 TraceCheckSpWp]: Trace formula consists of 192 conjuncts, 17 conjunts are in the unsatisfiable core [2023-11-29 03:53:54,387 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:53:55,481 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 3 proven. 10 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2023-11-29 03:53:55,481 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 03:53:55,991 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:53:55,991 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [839955578] [2023-11-29 03:53:55,991 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 03:53:55,992 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1337834990] [2023-11-29 03:53:55,992 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1337834990] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 03:53:55,992 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 03:53:55,992 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2023-11-29 03:53:55,992 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [473610712] [2023-11-29 03:53:55,992 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 03:53:55,992 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-29 03:53:55,992 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:53:55,993 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-29 03:53:55,993 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=222, Unknown=0, NotChecked=0, Total=272 [2023-11-29 03:53:55,993 INFO L87 Difference]: Start difference. First operand 870 states and 1150 transitions. Second operand has 12 states, 11 states have (on average 6.090909090909091) internal successors, (67), 11 states have internal predecessors, (67), 3 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2023-11-29 03:53:57,415 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:53:57,415 INFO L93 Difference]: Finished difference Result 898 states and 1161 transitions. [2023-11-29 03:53:57,416 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-11-29 03:53:57,416 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 6.090909090909091) internal successors, (67), 11 states have internal predecessors, (67), 3 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) Word has length 98 [2023-11-29 03:53:57,416 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:53:57,418 INFO L225 Difference]: With dead ends: 898 [2023-11-29 03:53:57,418 INFO L226 Difference]: Without dead ends: 897 [2023-11-29 03:53:57,418 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 135 GetRequests, 115 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 65 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=91, Invalid=371, Unknown=0, NotChecked=0, Total=462 [2023-11-29 03:53:57,418 INFO L413 NwaCegarLoop]: 69 mSDtfsCounter, 240 mSDsluCounter, 430 mSDsCounter, 0 mSdLazyCounter, 912 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 252 SdHoareTripleChecker+Valid, 499 SdHoareTripleChecker+Invalid, 920 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 912 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2023-11-29 03:53:57,419 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [252 Valid, 499 Invalid, 920 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 912 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2023-11-29 03:53:57,420 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 897 states. [2023-11-29 03:53:57,593 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 897 to 871. [2023-11-29 03:53:57,594 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 871 states, 729 states have (on average 1.3209876543209877) internal successors, (963), 774 states have internal predecessors, (963), 94 states have call successors, (94), 2 states have call predecessors, (94), 2 states have return successors, (94), 94 states have call predecessors, (94), 94 states have call successors, (94) [2023-11-29 03:53:57,595 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 871 states to 871 states and 1151 transitions. [2023-11-29 03:53:57,596 INFO L78 Accepts]: Start accepts. Automaton has 871 states and 1151 transitions. Word has length 98 [2023-11-29 03:53:57,596 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:53:57,596 INFO L495 AbstractCegarLoop]: Abstraction has 871 states and 1151 transitions. [2023-11-29 03:53:57,596 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 6.090909090909091) internal successors, (67), 11 states have internal predecessors, (67), 3 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2023-11-29 03:53:57,596 INFO L276 IsEmpty]: Start isEmpty. Operand 871 states and 1151 transitions. [2023-11-29 03:53:57,597 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2023-11-29 03:53:57,597 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:53:57,597 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:53:57,602 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0345f207-eb94-43c0-b5d4-be7362f6a67e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (66)] Ended with exit code 0 [2023-11-29 03:53:57,797 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 66 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0345f207-eb94-43c0-b5d4-be7362f6a67e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable64 [2023-11-29 03:53:57,797 INFO L420 AbstractCegarLoop]: === Iteration 66 === Targeting ULTIMATE.startErr48ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2023-11-29 03:53:57,798 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:53:57,798 INFO L85 PathProgramCache]: Analyzing trace with hash -1231943908, now seen corresponding path program 1 times [2023-11-29 03:53:57,798 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:53:57,798 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1041245633] [2023-11-29 03:53:57,798 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:53:57,798 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:53:57,806 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 03:53:57,806 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1304471487] [2023-11-29 03:53:57,806 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:53:57,806 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:53:57,806 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0345f207-eb94-43c0-b5d4-be7362f6a67e/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:53:57,807 INFO L229 MonitoredProcess]: Starting monitored process 67 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0345f207-eb94-43c0-b5d4-be7362f6a67e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:53:57,808 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0345f207-eb94-43c0-b5d4-be7362f6a67e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (67)] Waiting until timeout for monitored process [2023-11-29 03:53:57,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:53:57,875 INFO L262 TraceCheckSpWp]: Trace formula consists of 193 conjuncts, 52 conjunts are in the unsatisfiable core [2023-11-29 03:53:57,878 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:53:59,411 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2023-11-29 03:53:59,411 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 03:54:02,161 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 2 proven. 14 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2023-11-29 03:54:02,161 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:54:02,161 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1041245633] [2023-11-29 03:54:02,161 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 03:54:02,161 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1304471487] [2023-11-29 03:54:02,161 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1304471487] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 03:54:02,161 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 03:54:02,162 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 14] total 27 [2023-11-29 03:54:02,162 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1385290104] [2023-11-29 03:54:02,162 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 03:54:02,162 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2023-11-29 03:54:02,162 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:54:02,163 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2023-11-29 03:54:02,163 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=102, Invalid=654, Unknown=0, NotChecked=0, Total=756 [2023-11-29 03:54:02,163 INFO L87 Difference]: Start difference. First operand 871 states and 1151 transitions. Second operand has 28 states, 27 states have (on average 4.703703703703703) internal successors, (127), 28 states have internal predecessors, (127), 7 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (12), 5 states have call predecessors, (12), 7 states have call successors, (12) [2023-11-29 03:54:06,423 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.56s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-29 03:54:10,426 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-29 03:54:11,690 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.22s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-29 03:54:18,293 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-29 03:54:23,439 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.27s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-29 03:54:27,525 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.60s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-29 03:54:36,608 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.36s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-29 03:54:50,979 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.51s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-29 03:54:58,709 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:54:58,709 INFO L93 Difference]: Finished difference Result 948 states and 1177 transitions. [2023-11-29 03:54:58,710 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2023-11-29 03:54:58,710 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 27 states have (on average 4.703703703703703) internal successors, (127), 28 states have internal predecessors, (127), 7 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (12), 5 states have call predecessors, (12), 7 states have call successors, (12) Word has length 99 [2023-11-29 03:54:58,710 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:54:58,713 INFO L225 Difference]: With dead ends: 948 [2023-11-29 03:54:58,713 INFO L226 Difference]: Without dead ends: 947 [2023-11-29 03:54:58,713 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 227 GetRequests, 170 SyntacticMatches, 0 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 692 ImplicationChecksByTransitivity, 15.6s TimeCoverageRelationStatistics Valid=625, Invalid=2797, Unknown=0, NotChecked=0, Total=3422 [2023-11-29 03:54:58,714 INFO L413 NwaCegarLoop]: 52 mSDtfsCounter, 1264 mSDsluCounter, 507 mSDsCounter, 0 mSdLazyCounter, 2289 mSolverCounterSat, 194 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 42.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1267 SdHoareTripleChecker+Valid, 559 SdHoareTripleChecker+Invalid, 2485 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 194 IncrementalHoareTripleChecker+Valid, 2289 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 42.6s IncrementalHoareTripleChecker+Time [2023-11-29 03:54:58,714 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1267 Valid, 559 Invalid, 2485 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [194 Valid, 2289 Invalid, 2 Unknown, 0 Unchecked, 42.6s Time] [2023-11-29 03:54:58,715 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 947 states. [2023-11-29 03:54:58,945 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 947 to 872. [2023-11-29 03:54:58,946 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 872 states, 730 states have (on average 1.3205479452054794) internal successors, (964), 775 states have internal predecessors, (964), 94 states have call successors, (94), 2 states have call predecessors, (94), 2 states have return successors, (94), 94 states have call predecessors, (94), 94 states have call successors, (94) [2023-11-29 03:54:58,948 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 872 states to 872 states and 1152 transitions. [2023-11-29 03:54:58,948 INFO L78 Accepts]: Start accepts. Automaton has 872 states and 1152 transitions. Word has length 99 [2023-11-29 03:54:58,948 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:54:58,948 INFO L495 AbstractCegarLoop]: Abstraction has 872 states and 1152 transitions. [2023-11-29 03:54:58,948 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 27 states have (on average 4.703703703703703) internal successors, (127), 28 states have internal predecessors, (127), 7 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (12), 5 states have call predecessors, (12), 7 states have call successors, (12) [2023-11-29 03:54:58,948 INFO L276 IsEmpty]: Start isEmpty. Operand 872 states and 1152 transitions. [2023-11-29 03:54:58,949 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2023-11-29 03:54:58,949 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:54:58,949 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:54:58,955 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0345f207-eb94-43c0-b5d4-be7362f6a67e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (67)] Forceful destruction successful, exit code 0 [2023-11-29 03:54:59,149 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 67 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0345f207-eb94-43c0-b5d4-be7362f6a67e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable65 [2023-11-29 03:54:59,150 INFO L420 AbstractCegarLoop]: === Iteration 67 === Targeting ULTIMATE.startErr49ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2023-11-29 03:54:59,150 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:54:59,150 INFO L85 PathProgramCache]: Analyzing trace with hash 464444710, now seen corresponding path program 1 times [2023-11-29 03:54:59,150 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:54:59,150 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [129944899] [2023-11-29 03:54:59,150 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:54:59,151 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:54:59,158 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 03:54:59,158 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [187063624] [2023-11-29 03:54:59,158 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:54:59,158 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:54:59,158 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0345f207-eb94-43c0-b5d4-be7362f6a67e/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:54:59,159 INFO L229 MonitoredProcess]: Starting monitored process 68 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0345f207-eb94-43c0-b5d4-be7362f6a67e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:54:59,160 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0345f207-eb94-43c0-b5d4-be7362f6a67e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (68)] Waiting until timeout for monitored process [2023-11-29 03:54:59,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:54:59,227 INFO L262 TraceCheckSpWp]: Trace formula consists of 194 conjuncts, 47 conjunts are in the unsatisfiable core [2023-11-29 03:54:59,229 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:55:00,643 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2023-11-29 03:55:00,644 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 03:55:03,186 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2023-11-29 03:55:03,187 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:55:03,187 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [129944899] [2023-11-29 03:55:03,187 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 03:55:03,187 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [187063624] [2023-11-29 03:55:03,187 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [187063624] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 03:55:03,187 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 03:55:03,187 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14] total 26 [2023-11-29 03:55:03,187 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2145775101] [2023-11-29 03:55:03,188 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 03:55:03,188 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2023-11-29 03:55:03,188 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:55:03,189 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2023-11-29 03:55:03,189 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=85, Invalid=617, Unknown=0, NotChecked=0, Total=702 [2023-11-29 03:55:03,189 INFO L87 Difference]: Start difference. First operand 872 states and 1152 transitions. Second operand has 27 states, 26 states have (on average 4.961538461538462) internal successors, (129), 27 states have internal predecessors, (129), 5 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (12), 3 states have call predecessors, (12), 5 states have call successors, (12) [2023-11-29 03:55:10,735 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.97s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-29 03:55:31,256 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:55:31,256 INFO L93 Difference]: Finished difference Result 932 states and 1176 transitions. [2023-11-29 03:55:31,257 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2023-11-29 03:55:31,257 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 26 states have (on average 4.961538461538462) internal successors, (129), 27 states have internal predecessors, (129), 5 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (12), 3 states have call predecessors, (12), 5 states have call successors, (12) Word has length 100 [2023-11-29 03:55:31,257 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:55:31,258 INFO L225 Difference]: With dead ends: 932 [2023-11-29 03:55:31,259 INFO L226 Difference]: Without dead ends: 900 [2023-11-29 03:55:31,259 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 228 GetRequests, 173 SyntacticMatches, 0 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 628 ImplicationChecksByTransitivity, 10.2s TimeCoverageRelationStatistics Valid=590, Invalid=2602, Unknown=0, NotChecked=0, Total=3192 [2023-11-29 03:55:31,260 INFO L413 NwaCegarLoop]: 54 mSDtfsCounter, 847 mSDsluCounter, 475 mSDsCounter, 0 mSdLazyCounter, 2206 mSolverCounterSat, 157 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 19.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 847 SdHoareTripleChecker+Valid, 529 SdHoareTripleChecker+Invalid, 2363 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 157 IncrementalHoareTripleChecker+Valid, 2206 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 19.3s IncrementalHoareTripleChecker+Time [2023-11-29 03:55:31,260 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [847 Valid, 529 Invalid, 2363 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [157 Valid, 2206 Invalid, 0 Unknown, 0 Unchecked, 19.3s Time] [2023-11-29 03:55:31,261 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 900 states. [2023-11-29 03:55:31,528 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 900 to 842. [2023-11-29 03:55:31,528 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 842 states, 700 states have (on average 1.332857142857143) internal successors, (933), 745 states have internal predecessors, (933), 94 states have call successors, (94), 2 states have call predecessors, (94), 2 states have return successors, (94), 94 states have call predecessors, (94), 94 states have call successors, (94) [2023-11-29 03:55:31,530 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 842 states to 842 states and 1121 transitions. [2023-11-29 03:55:31,530 INFO L78 Accepts]: Start accepts. Automaton has 842 states and 1121 transitions. Word has length 100 [2023-11-29 03:55:31,530 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:55:31,530 INFO L495 AbstractCegarLoop]: Abstraction has 842 states and 1121 transitions. [2023-11-29 03:55:31,530 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 26 states have (on average 4.961538461538462) internal successors, (129), 27 states have internal predecessors, (129), 5 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (12), 3 states have call predecessors, (12), 5 states have call successors, (12) [2023-11-29 03:55:31,530 INFO L276 IsEmpty]: Start isEmpty. Operand 842 states and 1121 transitions. [2023-11-29 03:55:31,531 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2023-11-29 03:55:31,531 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:55:31,531 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:55:31,536 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0345f207-eb94-43c0-b5d4-be7362f6a67e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (68)] Forceful destruction successful, exit code 0 [2023-11-29 03:55:31,731 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable66,68 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0345f207-eb94-43c0-b5d4-be7362f6a67e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:55:31,732 INFO L420 AbstractCegarLoop]: === Iteration 68 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2023-11-29 03:55:31,732 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:55:31,732 INFO L85 PathProgramCache]: Analyzing trace with hash 779850655, now seen corresponding path program 1 times [2023-11-29 03:55:31,732 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:55:31,732 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [331596709] [2023-11-29 03:55:31,732 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:55:31,732 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:55:31,739 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 03:55:31,739 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [579213017] [2023-11-29 03:55:31,739 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:55:31,739 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:55:31,739 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0345f207-eb94-43c0-b5d4-be7362f6a67e/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:55:31,740 INFO L229 MonitoredProcess]: Starting monitored process 69 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0345f207-eb94-43c0-b5d4-be7362f6a67e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:55:31,741 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0345f207-eb94-43c0-b5d4-be7362f6a67e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (69)] Waiting until timeout for monitored process [2023-11-29 03:55:31,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:55:31,808 INFO L262 TraceCheckSpWp]: Trace formula consists of 196 conjuncts, 10 conjunts are in the unsatisfiable core [2023-11-29 03:55:31,810 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:55:32,109 INFO L134 CoverageAnalysis]: Checked inductivity of 129 backedges. 24 proven. 6 refuted. 0 times theorem prover too weak. 99 trivial. 0 not checked. [2023-11-29 03:55:32,109 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 03:55:32,276 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:55:32,276 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [331596709] [2023-11-29 03:55:32,276 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 03:55:32,276 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [579213017] [2023-11-29 03:55:32,277 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [579213017] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 03:55:32,277 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 03:55:32,277 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2023-11-29 03:55:32,277 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1189806077] [2023-11-29 03:55:32,277 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 03:55:32,277 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-29 03:55:32,278 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:55:32,278 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-29 03:55:32,278 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2023-11-29 03:55:32,278 INFO L87 Difference]: Start difference. First operand 842 states and 1121 transitions. Second operand has 9 states, 8 states have (on average 7.5) internal successors, (60), 8 states have internal predecessors, (60), 4 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (11), 4 states have call predecessors, (11), 4 states have call successors, (11) [2023-11-29 03:55:33,021 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:55:33,021 INFO L93 Difference]: Finished difference Result 856 states and 1121 transitions. [2023-11-29 03:55:33,022 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-29 03:55:33,022 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 7.5) internal successors, (60), 8 states have internal predecessors, (60), 4 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (11), 4 states have call predecessors, (11), 4 states have call successors, (11) Word has length 106 [2023-11-29 03:55:33,022 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:55:33,023 INFO L225 Difference]: With dead ends: 856 [2023-11-29 03:55:33,023 INFO L226 Difference]: Without dead ends: 855 [2023-11-29 03:55:33,024 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 151 GetRequests, 137 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=67, Invalid=173, Unknown=0, NotChecked=0, Total=240 [2023-11-29 03:55:33,024 INFO L413 NwaCegarLoop]: 89 mSDtfsCounter, 230 mSDsluCounter, 342 mSDsCounter, 0 mSdLazyCounter, 363 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 234 SdHoareTripleChecker+Valid, 431 SdHoareTripleChecker+Invalid, 369 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 363 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-29 03:55:33,024 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [234 Valid, 431 Invalid, 369 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 363 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-29 03:55:33,025 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 855 states. [2023-11-29 03:55:33,262 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 855 to 842. [2023-11-29 03:55:33,263 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 842 states, 700 states have (on average 1.3271428571428572) internal successors, (929), 745 states have internal predecessors, (929), 94 states have call successors, (94), 2 states have call predecessors, (94), 2 states have return successors, (94), 94 states have call predecessors, (94), 94 states have call successors, (94) [2023-11-29 03:55:33,264 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 842 states to 842 states and 1117 transitions. [2023-11-29 03:55:33,264 INFO L78 Accepts]: Start accepts. Automaton has 842 states and 1117 transitions. Word has length 106 [2023-11-29 03:55:33,264 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:55:33,264 INFO L495 AbstractCegarLoop]: Abstraction has 842 states and 1117 transitions. [2023-11-29 03:55:33,265 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 7.5) internal successors, (60), 8 states have internal predecessors, (60), 4 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (11), 4 states have call predecessors, (11), 4 states have call successors, (11) [2023-11-29 03:55:33,265 INFO L276 IsEmpty]: Start isEmpty. Operand 842 states and 1117 transitions. [2023-11-29 03:55:33,265 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2023-11-29 03:55:33,265 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:55:33,265 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:55:33,269 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0345f207-eb94-43c0-b5d4-be7362f6a67e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (69)] Ended with exit code 0 [2023-11-29 03:55:33,465 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 69 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0345f207-eb94-43c0-b5d4-be7362f6a67e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable67 [2023-11-29 03:55:33,466 INFO L420 AbstractCegarLoop]: === Iteration 69 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2023-11-29 03:55:33,466 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:55:33,466 INFO L85 PathProgramCache]: Analyzing trace with hash -1670291419, now seen corresponding path program 1 times [2023-11-29 03:55:33,466 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:55:33,466 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1839321550] [2023-11-29 03:55:33,466 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:55:33,466 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:55:33,471 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 03:55:33,471 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [443514666] [2023-11-29 03:55:33,471 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:55:33,471 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:55:33,471 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0345f207-eb94-43c0-b5d4-be7362f6a67e/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:55:33,472 INFO L229 MonitoredProcess]: Starting monitored process 70 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0345f207-eb94-43c0-b5d4-be7362f6a67e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:55:33,473 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0345f207-eb94-43c0-b5d4-be7362f6a67e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (70)] Waiting until timeout for monitored process [2023-11-29 03:55:33,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:55:33,524 INFO L262 TraceCheckSpWp]: Trace formula consists of 207 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-29 03:55:33,526 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:55:33,604 INFO L134 CoverageAnalysis]: Checked inductivity of 160 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2023-11-29 03:55:33,604 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 03:55:33,705 INFO L134 CoverageAnalysis]: Checked inductivity of 160 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2023-11-29 03:55:33,705 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:55:33,705 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1839321550] [2023-11-29 03:55:33,705 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 03:55:33,705 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [443514666] [2023-11-29 03:55:33,706 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [443514666] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 03:55:33,706 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 03:55:33,706 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 9 [2023-11-29 03:55:33,706 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [294130936] [2023-11-29 03:55:33,706 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 03:55:33,706 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-29 03:55:33,706 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:55:33,707 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-29 03:55:33,707 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2023-11-29 03:55:33,707 INFO L87 Difference]: Start difference. First operand 842 states and 1117 transitions. Second operand has 10 states, 9 states have (on average 12.333333333333334) internal successors, (111), 10 states have internal predecessors, (111), 7 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 7 states have call predecessors, (23), 7 states have call successors, (23) [2023-11-29 03:55:34,786 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:55:34,787 INFO L93 Difference]: Finished difference Result 1002 states and 1299 transitions. [2023-11-29 03:55:34,787 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-29 03:55:34,787 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 12.333333333333334) internal successors, (111), 10 states have internal predecessors, (111), 7 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 7 states have call predecessors, (23), 7 states have call successors, (23) Word has length 113 [2023-11-29 03:55:34,787 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:55:34,789 INFO L225 Difference]: With dead ends: 1002 [2023-11-29 03:55:34,789 INFO L226 Difference]: Without dead ends: 1001 [2023-11-29 03:55:34,789 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 231 GetRequests, 216 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=94, Invalid=178, Unknown=0, NotChecked=0, Total=272 [2023-11-29 03:55:34,790 INFO L413 NwaCegarLoop]: 76 mSDtfsCounter, 746 mSDsluCounter, 422 mSDsCounter, 0 mSdLazyCounter, 401 mSolverCounterSat, 59 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 750 SdHoareTripleChecker+Valid, 498 SdHoareTripleChecker+Invalid, 460 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 401 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-11-29 03:55:34,790 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [750 Valid, 498 Invalid, 460 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 401 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-11-29 03:55:34,791 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1001 states. [2023-11-29 03:55:35,091 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1001 to 966. [2023-11-29 03:55:35,091 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 966 states, 806 states have (on average 1.3114143920595533) internal successors, (1057), 851 states have internal predecessors, (1057), 112 states have call successors, (112), 2 states have call predecessors, (112), 2 states have return successors, (112), 112 states have call predecessors, (112), 112 states have call successors, (112) [2023-11-29 03:55:35,093 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 966 states to 966 states and 1281 transitions. [2023-11-29 03:55:35,093 INFO L78 Accepts]: Start accepts. Automaton has 966 states and 1281 transitions. Word has length 113 [2023-11-29 03:55:35,093 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:55:35,093 INFO L495 AbstractCegarLoop]: Abstraction has 966 states and 1281 transitions. [2023-11-29 03:55:35,093 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 12.333333333333334) internal successors, (111), 10 states have internal predecessors, (111), 7 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 7 states have call predecessors, (23), 7 states have call successors, (23) [2023-11-29 03:55:35,093 INFO L276 IsEmpty]: Start isEmpty. Operand 966 states and 1281 transitions. [2023-11-29 03:55:35,094 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2023-11-29 03:55:35,094 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:55:35,094 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:55:35,099 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0345f207-eb94-43c0-b5d4-be7362f6a67e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (70)] Forceful destruction successful, exit code 0 [2023-11-29 03:55:35,294 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable68,70 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0345f207-eb94-43c0-b5d4-be7362f6a67e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:55:35,295 INFO L420 AbstractCegarLoop]: === Iteration 70 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2023-11-29 03:55:35,295 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:55:35,295 INFO L85 PathProgramCache]: Analyzing trace with hash -239426318, now seen corresponding path program 1 times [2023-11-29 03:55:35,295 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:55:35,295 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1206613924] [2023-11-29 03:55:35,295 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:55:35,295 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:55:35,300 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 03:55:35,300 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1303539658] [2023-11-29 03:55:35,300 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:55:35,300 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:55:35,301 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0345f207-eb94-43c0-b5d4-be7362f6a67e/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:55:35,301 INFO L229 MonitoredProcess]: Starting monitored process 71 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0345f207-eb94-43c0-b5d4-be7362f6a67e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:55:35,302 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0345f207-eb94-43c0-b5d4-be7362f6a67e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (71)] Waiting until timeout for monitored process [2023-11-29 03:55:35,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:55:35,355 INFO L262 TraceCheckSpWp]: Trace formula consists of 208 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-29 03:55:35,357 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:55:35,418 INFO L134 CoverageAnalysis]: Checked inductivity of 161 backedges. 0 proven. 25 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2023-11-29 03:55:35,418 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 03:55:35,520 INFO L134 CoverageAnalysis]: Checked inductivity of 161 backedges. 0 proven. 25 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2023-11-29 03:55:35,520 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:55:35,520 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1206613924] [2023-11-29 03:55:35,521 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 03:55:35,521 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1303539658] [2023-11-29 03:55:35,521 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1303539658] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 03:55:35,521 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 03:55:35,521 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 9 [2023-11-29 03:55:35,521 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1370969962] [2023-11-29 03:55:35,521 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 03:55:35,522 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-29 03:55:35,522 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:55:35,522 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-29 03:55:35,523 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2023-11-29 03:55:35,523 INFO L87 Difference]: Start difference. First operand 966 states and 1281 transitions. Second operand has 10 states, 9 states have (on average 12.555555555555555) internal successors, (113), 10 states have internal predecessors, (113), 7 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 7 states have call predecessors, (23), 7 states have call successors, (23) [2023-11-29 03:55:36,507 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:55:36,507 INFO L93 Difference]: Finished difference Result 1003 states and 1297 transitions. [2023-11-29 03:55:36,508 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-29 03:55:36,508 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 12.555555555555555) internal successors, (113), 10 states have internal predecessors, (113), 7 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 7 states have call predecessors, (23), 7 states have call successors, (23) Word has length 114 [2023-11-29 03:55:36,508 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:55:36,510 INFO L225 Difference]: With dead ends: 1003 [2023-11-29 03:55:36,510 INFO L226 Difference]: Without dead ends: 1001 [2023-11-29 03:55:36,510 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 233 GetRequests, 218 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=94, Invalid=178, Unknown=0, NotChecked=0, Total=272 [2023-11-29 03:55:36,511 INFO L413 NwaCegarLoop]: 80 mSDtfsCounter, 749 mSDsluCounter, 270 mSDsCounter, 0 mSdLazyCounter, 304 mSolverCounterSat, 58 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 753 SdHoareTripleChecker+Valid, 350 SdHoareTripleChecker+Invalid, 362 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 58 IncrementalHoareTripleChecker+Valid, 304 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-11-29 03:55:36,511 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [753 Valid, 350 Invalid, 362 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [58 Valid, 304 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-11-29 03:55:36,512 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1001 states. [2023-11-29 03:55:36,812 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1001 to 911. [2023-11-29 03:55:36,812 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 911 states, 759 states have (on average 1.2779973649538867) internal successors, (970), 803 states have internal predecessors, (970), 105 states have call successors, (105), 2 states have call predecessors, (105), 2 states have return successors, (105), 105 states have call predecessors, (105), 105 states have call successors, (105) [2023-11-29 03:55:36,814 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 911 states to 911 states and 1180 transitions. [2023-11-29 03:55:36,814 INFO L78 Accepts]: Start accepts. Automaton has 911 states and 1180 transitions. Word has length 114 [2023-11-29 03:55:36,815 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:55:36,815 INFO L495 AbstractCegarLoop]: Abstraction has 911 states and 1180 transitions. [2023-11-29 03:55:36,815 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 12.555555555555555) internal successors, (113), 10 states have internal predecessors, (113), 7 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 7 states have call predecessors, (23), 7 states have call successors, (23) [2023-11-29 03:55:36,815 INFO L276 IsEmpty]: Start isEmpty. Operand 911 states and 1180 transitions. [2023-11-29 03:55:36,815 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2023-11-29 03:55:36,815 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:55:36,816 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:55:36,820 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0345f207-eb94-43c0-b5d4-be7362f6a67e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (71)] Forceful destruction successful, exit code 0 [2023-11-29 03:55:37,016 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable69,71 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0345f207-eb94-43c0-b5d4-be7362f6a67e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:55:37,016 INFO L420 AbstractCegarLoop]: === Iteration 71 === Targeting ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2023-11-29 03:55:37,016 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:55:37,016 INFO L85 PathProgramCache]: Analyzing trace with hash 1839546305, now seen corresponding path program 1 times [2023-11-29 03:55:37,017 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:55:37,017 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1280278777] [2023-11-29 03:55:37,017 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:55:37,017 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:55:37,023 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 03:55:37,023 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [639243110] [2023-11-29 03:55:37,023 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:55:37,024 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:55:37,024 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0345f207-eb94-43c0-b5d4-be7362f6a67e/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:55:37,025 INFO L229 MonitoredProcess]: Starting monitored process 72 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0345f207-eb94-43c0-b5d4-be7362f6a67e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:55:37,025 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0345f207-eb94-43c0-b5d4-be7362f6a67e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (72)] Waiting until timeout for monitored process [2023-11-29 03:55:37,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:55:37,088 INFO L262 TraceCheckSpWp]: Trace formula consists of 210 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-29 03:55:37,090 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:55:37,182 INFO L134 CoverageAnalysis]: Checked inductivity of 162 backedges. 26 proven. 0 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2023-11-29 03:55:37,182 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 03:55:37,182 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:55:37,182 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1280278777] [2023-11-29 03:55:37,182 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 03:55:37,182 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [639243110] [2023-11-29 03:55:37,182 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [639243110] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:55:37,182 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:55:37,182 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 03:55:37,183 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1360203447] [2023-11-29 03:55:37,183 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:55:37,183 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 03:55:37,183 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:55:37,183 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 03:55:37,184 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-29 03:55:37,184 INFO L87 Difference]: Start difference. First operand 911 states and 1180 transitions. Second operand has 4 states, 3 states have (on average 20.666666666666668) internal successors, (62), 4 states have internal predecessors, (62), 2 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-11-29 03:55:37,702 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:55:37,702 INFO L93 Difference]: Finished difference Result 924 states and 1180 transitions. [2023-11-29 03:55:37,703 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-29 03:55:37,703 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 20.666666666666668) internal successors, (62), 4 states have internal predecessors, (62), 2 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 116 [2023-11-29 03:55:37,703 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:55:37,705 INFO L225 Difference]: With dead ends: 924 [2023-11-29 03:55:37,705 INFO L226 Difference]: Without dead ends: 923 [2023-11-29 03:55:37,705 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 116 GetRequests, 113 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-29 03:55:37,706 INFO L413 NwaCegarLoop]: 158 mSDtfsCounter, 22 mSDsluCounter, 244 mSDsCounter, 0 mSdLazyCounter, 66 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 402 SdHoareTripleChecker+Invalid, 67 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 66 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 03:55:37,706 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [22 Valid, 402 Invalid, 67 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 66 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 03:55:37,707 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 923 states. [2023-11-29 03:55:38,021 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 923 to 910. [2023-11-29 03:55:38,021 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 910 states, 759 states have (on average 1.2727272727272727) internal successors, (966), 802 states have internal predecessors, (966), 105 states have call successors, (105), 2 states have call predecessors, (105), 2 states have return successors, (105), 105 states have call predecessors, (105), 105 states have call successors, (105) [2023-11-29 03:55:38,023 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 910 states to 910 states and 1176 transitions. [2023-11-29 03:55:38,023 INFO L78 Accepts]: Start accepts. Automaton has 910 states and 1176 transitions. Word has length 116 [2023-11-29 03:55:38,023 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:55:38,024 INFO L495 AbstractCegarLoop]: Abstraction has 910 states and 1176 transitions. [2023-11-29 03:55:38,024 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 20.666666666666668) internal successors, (62), 4 states have internal predecessors, (62), 2 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-11-29 03:55:38,024 INFO L276 IsEmpty]: Start isEmpty. Operand 910 states and 1176 transitions. [2023-11-29 03:55:38,025 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2023-11-29 03:55:38,025 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:55:38,025 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:55:38,029 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0345f207-eb94-43c0-b5d4-be7362f6a67e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (72)] Ended with exit code 0 [2023-11-29 03:55:38,225 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 72 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0345f207-eb94-43c0-b5d4-be7362f6a67e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable70 [2023-11-29 03:55:38,226 INFO L420 AbstractCegarLoop]: === Iteration 72 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2023-11-29 03:55:38,226 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:55:38,226 INFO L85 PathProgramCache]: Analyzing trace with hash 1191362316, now seen corresponding path program 1 times [2023-11-29 03:55:38,226 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:55:38,226 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [913615063] [2023-11-29 03:55:38,226 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:55:38,226 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:55:38,233 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 03:55:38,233 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1608651264] [2023-11-29 03:55:38,233 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:55:38,233 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:55:38,233 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0345f207-eb94-43c0-b5d4-be7362f6a67e/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:55:38,234 INFO L229 MonitoredProcess]: Starting monitored process 73 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0345f207-eb94-43c0-b5d4-be7362f6a67e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:55:38,235 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0345f207-eb94-43c0-b5d4-be7362f6a67e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (73)] Waiting until timeout for monitored process [2023-11-29 03:55:38,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:55:38,304 INFO L262 TraceCheckSpWp]: Trace formula consists of 211 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-29 03:55:38,306 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:55:38,398 INFO L134 CoverageAnalysis]: Checked inductivity of 164 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2023-11-29 03:55:38,398 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 03:55:38,517 INFO L134 CoverageAnalysis]: Checked inductivity of 164 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2023-11-29 03:55:38,517 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:55:38,517 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [913615063] [2023-11-29 03:55:38,517 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 03:55:38,518 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1608651264] [2023-11-29 03:55:38,518 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1608651264] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 03:55:38,518 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 03:55:38,518 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 5 [2023-11-29 03:55:38,518 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [740319239] [2023-11-29 03:55:38,518 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 03:55:38,519 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 03:55:38,519 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:55:38,519 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 03:55:38,519 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-29 03:55:38,519 INFO L87 Difference]: Start difference. First operand 910 states and 1176 transitions. Second operand has 6 states, 5 states have (on average 22.8) internal successors, (114), 6 states have internal predecessors, (114), 5 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 5 states have call predecessors, (20), 5 states have call successors, (20) [2023-11-29 03:55:39,253 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:55:39,253 INFO L93 Difference]: Finished difference Result 1352 states and 1739 transitions. [2023-11-29 03:55:39,254 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-29 03:55:39,254 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 22.8) internal successors, (114), 6 states have internal predecessors, (114), 5 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 5 states have call predecessors, (20), 5 states have call successors, (20) Word has length 117 [2023-11-29 03:55:39,254 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:55:39,256 INFO L225 Difference]: With dead ends: 1352 [2023-11-29 03:55:39,256 INFO L226 Difference]: Without dead ends: 1351 [2023-11-29 03:55:39,257 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 232 GetRequests, 228 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-29 03:55:39,257 INFO L413 NwaCegarLoop]: 121 mSDtfsCounter, 84 mSDsluCounter, 433 mSDsCounter, 0 mSdLazyCounter, 74 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 84 SdHoareTripleChecker+Valid, 554 SdHoareTripleChecker+Invalid, 75 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 74 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-29 03:55:39,257 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [84 Valid, 554 Invalid, 75 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 74 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-29 03:55:39,258 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1351 states. [2023-11-29 03:55:39,729 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1351 to 1242. [2023-11-29 03:55:39,730 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1242 states, 1048 states have (on average 1.299618320610687) internal successors, (1362), 1091 states have internal predecessors, (1362), 148 states have call successors, (148), 2 states have call predecessors, (148), 2 states have return successors, (148), 148 states have call predecessors, (148), 148 states have call successors, (148) [2023-11-29 03:55:39,732 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1242 states to 1242 states and 1658 transitions. [2023-11-29 03:55:39,732 INFO L78 Accepts]: Start accepts. Automaton has 1242 states and 1658 transitions. Word has length 117 [2023-11-29 03:55:39,732 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:55:39,732 INFO L495 AbstractCegarLoop]: Abstraction has 1242 states and 1658 transitions. [2023-11-29 03:55:39,732 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 22.8) internal successors, (114), 6 states have internal predecessors, (114), 5 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 5 states have call predecessors, (20), 5 states have call successors, (20) [2023-11-29 03:55:39,733 INFO L276 IsEmpty]: Start isEmpty. Operand 1242 states and 1658 transitions. [2023-11-29 03:55:39,733 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2023-11-29 03:55:39,733 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:55:39,734 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:55:39,739 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0345f207-eb94-43c0-b5d4-be7362f6a67e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (73)] Forceful destruction successful, exit code 0 [2023-11-29 03:55:39,934 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable71,73 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0345f207-eb94-43c0-b5d4-be7362f6a67e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:55:39,934 INFO L420 AbstractCegarLoop]: === Iteration 73 === Targeting ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2023-11-29 03:55:39,934 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:55:39,935 INFO L85 PathProgramCache]: Analyzing trace with hash -1858586612, now seen corresponding path program 1 times [2023-11-29 03:55:39,935 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:55:39,935 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1777463278] [2023-11-29 03:55:39,935 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:55:39,935 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:55:39,944 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 03:55:39,944 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1792563671] [2023-11-29 03:55:39,944 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:55:39,944 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:55:39,944 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0345f207-eb94-43c0-b5d4-be7362f6a67e/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:55:39,945 INFO L229 MonitoredProcess]: Starting monitored process 74 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0345f207-eb94-43c0-b5d4-be7362f6a67e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:55:39,946 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0345f207-eb94-43c0-b5d4-be7362f6a67e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (74)] Waiting until timeout for monitored process [2023-11-29 03:55:40,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:55:40,013 INFO L262 TraceCheckSpWp]: Trace formula consists of 215 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-29 03:55:40,015 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:55:40,197 INFO L134 CoverageAnalysis]: Checked inductivity of 162 backedges. 0 proven. 26 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2023-11-29 03:55:40,197 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 03:55:40,327 INFO L134 CoverageAnalysis]: Checked inductivity of 162 backedges. 0 proven. 26 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2023-11-29 03:55:40,327 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:55:40,327 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1777463278] [2023-11-29 03:55:40,328 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 03:55:40,328 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1792563671] [2023-11-29 03:55:40,328 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1792563671] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 03:55:40,328 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 03:55:40,328 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 7 [2023-11-29 03:55:40,328 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1516526418] [2023-11-29 03:55:40,328 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 03:55:40,329 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-29 03:55:40,329 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:55:40,329 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-29 03:55:40,329 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2023-11-29 03:55:40,330 INFO L87 Difference]: Start difference. First operand 1242 states and 1658 transitions. Second operand has 8 states, 7 states have (on average 17.142857142857142) internal successors, (120), 8 states have internal predecessors, (120), 5 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 5 states have call predecessors, (20), 5 states have call successors, (20) [2023-11-29 03:55:42,001 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:55:42,001 INFO L93 Difference]: Finished difference Result 2182 states and 2866 transitions. [2023-11-29 03:55:42,002 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-29 03:55:42,002 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 17.142857142857142) internal successors, (120), 8 states have internal predecessors, (120), 5 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 5 states have call predecessors, (20), 5 states have call successors, (20) Word has length 119 [2023-11-29 03:55:42,002 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:55:42,007 INFO L225 Difference]: With dead ends: 2182 [2023-11-29 03:55:42,007 INFO L226 Difference]: Without dead ends: 2181 [2023-11-29 03:55:42,008 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 240 GetRequests, 230 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=56, Invalid=76, Unknown=0, NotChecked=0, Total=132 [2023-11-29 03:55:42,008 INFO L413 NwaCegarLoop]: 93 mSDtfsCounter, 448 mSDsluCounter, 446 mSDsCounter, 0 mSdLazyCounter, 267 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 452 SdHoareTripleChecker+Valid, 539 SdHoareTripleChecker+Invalid, 292 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 267 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-11-29 03:55:42,008 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [452 Valid, 539 Invalid, 292 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 267 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-11-29 03:55:42,011 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2181 states. [2023-11-29 03:55:42,535 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2181 to 1636. [2023-11-29 03:55:42,536 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1636 states, 1394 states have (on average 1.3206599713055953) internal successors, (1841), 1437 states have internal predecessors, (1841), 196 states have call successors, (196), 2 states have call predecessors, (196), 2 states have return successors, (196), 196 states have call predecessors, (196), 196 states have call successors, (196) [2023-11-29 03:55:42,539 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1636 states to 1636 states and 2233 transitions. [2023-11-29 03:55:42,539 INFO L78 Accepts]: Start accepts. Automaton has 1636 states and 2233 transitions. Word has length 119 [2023-11-29 03:55:42,539 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:55:42,539 INFO L495 AbstractCegarLoop]: Abstraction has 1636 states and 2233 transitions. [2023-11-29 03:55:42,539 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 17.142857142857142) internal successors, (120), 8 states have internal predecessors, (120), 5 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 5 states have call predecessors, (20), 5 states have call successors, (20) [2023-11-29 03:55:42,539 INFO L276 IsEmpty]: Start isEmpty. Operand 1636 states and 2233 transitions. [2023-11-29 03:55:42,540 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2023-11-29 03:55:42,540 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:55:42,540 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:55:42,544 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0345f207-eb94-43c0-b5d4-be7362f6a67e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (74)] Forceful destruction successful, exit code 0 [2023-11-29 03:55:42,740 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable72,74 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0345f207-eb94-43c0-b5d4-be7362f6a67e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:55:42,740 INFO L420 AbstractCegarLoop]: === Iteration 74 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2023-11-29 03:55:42,741 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:55:42,741 INFO L85 PathProgramCache]: Analyzing trace with hash -412794397, now seen corresponding path program 1 times [2023-11-29 03:55:42,741 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:55:42,741 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1205441735] [2023-11-29 03:55:42,741 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:55:42,741 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:55:42,748 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 03:55:42,748 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1727729440] [2023-11-29 03:55:42,748 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:55:42,749 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:55:42,749 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0345f207-eb94-43c0-b5d4-be7362f6a67e/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:55:42,750 INFO L229 MonitoredProcess]: Starting monitored process 75 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0345f207-eb94-43c0-b5d4-be7362f6a67e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:55:42,750 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0345f207-eb94-43c0-b5d4-be7362f6a67e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (75)] Waiting until timeout for monitored process [2023-11-29 03:55:42,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:55:42,811 INFO L262 TraceCheckSpWp]: Trace formula consists of 240 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-29 03:55:42,813 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:55:42,897 INFO L134 CoverageAnalysis]: Checked inductivity of 165 backedges. 4 proven. 25 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2023-11-29 03:55:42,897 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 03:55:43,019 INFO L134 CoverageAnalysis]: Checked inductivity of 165 backedges. 4 proven. 25 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2023-11-29 03:55:43,020 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:55:43,020 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1205441735] [2023-11-29 03:55:43,020 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 03:55:43,020 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1727729440] [2023-11-29 03:55:43,020 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1727729440] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 03:55:43,020 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 03:55:43,020 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 13 [2023-11-29 03:55:43,020 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [199869900] [2023-11-29 03:55:43,020 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 03:55:43,021 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-11-29 03:55:43,021 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:55:43,021 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-11-29 03:55:43,021 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=143, Unknown=0, NotChecked=0, Total=182 [2023-11-29 03:55:43,022 INFO L87 Difference]: Start difference. First operand 1636 states and 2233 transitions. Second operand has 14 states, 13 states have (on average 10.692307692307692) internal successors, (139), 14 states have internal predecessors, (139), 7 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 7 states have call predecessors, (23), 7 states have call successors, (23) [2023-11-29 03:55:44,818 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:55:44,818 INFO L93 Difference]: Finished difference Result 1767 states and 2300 transitions. [2023-11-29 03:55:44,819 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2023-11-29 03:55:44,819 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 10.692307692307692) internal successors, (139), 14 states have internal predecessors, (139), 7 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 7 states have call predecessors, (23), 7 states have call successors, (23) Word has length 127 [2023-11-29 03:55:44,819 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:55:44,823 INFO L225 Difference]: With dead ends: 1767 [2023-11-29 03:55:44,823 INFO L226 Difference]: Without dead ends: 1766 [2023-11-29 03:55:44,824 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 267 GetRequests, 240 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 115 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=253, Invalid=559, Unknown=0, NotChecked=0, Total=812 [2023-11-29 03:55:44,824 INFO L413 NwaCegarLoop]: 94 mSDtfsCounter, 1246 mSDsluCounter, 435 mSDsCounter, 0 mSdLazyCounter, 596 mSolverCounterSat, 111 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1246 SdHoareTripleChecker+Valid, 529 SdHoareTripleChecker+Invalid, 707 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 111 IncrementalHoareTripleChecker+Valid, 596 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-11-29 03:55:44,824 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1246 Valid, 529 Invalid, 707 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [111 Valid, 596 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-11-29 03:55:44,826 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1766 states. [2023-11-29 03:55:45,410 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1766 to 1636. [2023-11-29 03:55:45,411 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1636 states, 1394 states have (on average 1.3055954088952655) internal successors, (1820), 1437 states have internal predecessors, (1820), 196 states have call successors, (196), 2 states have call predecessors, (196), 2 states have return successors, (196), 196 states have call predecessors, (196), 196 states have call successors, (196) [2023-11-29 03:55:45,414 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1636 states to 1636 states and 2212 transitions. [2023-11-29 03:55:45,414 INFO L78 Accepts]: Start accepts. Automaton has 1636 states and 2212 transitions. Word has length 127 [2023-11-29 03:55:45,415 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:55:45,415 INFO L495 AbstractCegarLoop]: Abstraction has 1636 states and 2212 transitions. [2023-11-29 03:55:45,415 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 10.692307692307692) internal successors, (139), 14 states have internal predecessors, (139), 7 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 7 states have call predecessors, (23), 7 states have call successors, (23) [2023-11-29 03:55:45,415 INFO L276 IsEmpty]: Start isEmpty. Operand 1636 states and 2212 transitions. [2023-11-29 03:55:45,416 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2023-11-29 03:55:45,416 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:55:45,416 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:55:45,421 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0345f207-eb94-43c0-b5d4-be7362f6a67e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (75)] Ended with exit code 0 [2023-11-29 03:55:45,616 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable73,75 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0345f207-eb94-43c0-b5d4-be7362f6a67e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:55:45,617 INFO L420 AbstractCegarLoop]: === Iteration 75 === Targeting ULTIMATE.startErr33ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2023-11-29 03:55:45,617 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:55:45,617 INFO L85 PathProgramCache]: Analyzing trace with hash -2053136726, now seen corresponding path program 1 times [2023-11-29 03:55:45,617 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:55:45,617 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [418954387] [2023-11-29 03:55:45,617 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:55:45,617 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:55:45,625 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 03:55:45,625 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1235923844] [2023-11-29 03:55:45,626 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:55:45,626 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:55:45,626 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0345f207-eb94-43c0-b5d4-be7362f6a67e/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:55:45,627 INFO L229 MonitoredProcess]: Starting monitored process 76 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0345f207-eb94-43c0-b5d4-be7362f6a67e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:55:45,628 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0345f207-eb94-43c0-b5d4-be7362f6a67e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (76)] Waiting until timeout for monitored process [2023-11-29 03:55:45,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:55:45,699 INFO L262 TraceCheckSpWp]: Trace formula consists of 239 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-29 03:55:45,701 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:55:46,067 INFO L134 CoverageAnalysis]: Checked inductivity of 164 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2023-11-29 03:55:46,067 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 03:55:46,157 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:55:46,157 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [418954387] [2023-11-29 03:55:46,157 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 03:55:46,157 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1235923844] [2023-11-29 03:55:46,157 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1235923844] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 03:55:46,158 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 03:55:46,158 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2023-11-29 03:55:46,158 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2047755976] [2023-11-29 03:55:46,158 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 03:55:46,158 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-29 03:55:46,158 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:55:46,159 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-29 03:55:46,159 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2023-11-29 03:55:46,159 INFO L87 Difference]: Start difference. First operand 1636 states and 2212 transitions. Second operand has 7 states, 6 states have (on average 12.333333333333334) internal successors, (74), 7 states have internal predecessors, (74), 3 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2023-11-29 03:55:47,000 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:55:47,000 INFO L93 Difference]: Finished difference Result 1837 states and 2436 transitions. [2023-11-29 03:55:47,000 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-29 03:55:47,000 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 12.333333333333334) internal successors, (74), 7 states have internal predecessors, (74), 3 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) Word has length 128 [2023-11-29 03:55:47,000 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:55:47,004 INFO L225 Difference]: With dead ends: 1837 [2023-11-29 03:55:47,004 INFO L226 Difference]: Without dead ends: 1836 [2023-11-29 03:55:47,004 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 144 GetRequests, 137 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2023-11-29 03:55:47,004 INFO L413 NwaCegarLoop]: 105 mSDtfsCounter, 179 mSDsluCounter, 353 mSDsCounter, 0 mSdLazyCounter, 254 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 191 SdHoareTripleChecker+Valid, 458 SdHoareTripleChecker+Invalid, 258 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 254 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-29 03:55:47,004 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [191 Valid, 458 Invalid, 258 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 254 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-29 03:55:47,006 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1836 states. [2023-11-29 03:55:47,485 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1836 to 1649. [2023-11-29 03:55:47,487 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1649 states, 1407 states have (on average 1.3034825870646767) internal successors, (1834), 1450 states have internal predecessors, (1834), 196 states have call successors, (196), 2 states have call predecessors, (196), 2 states have return successors, (196), 196 states have call predecessors, (196), 196 states have call successors, (196) [2023-11-29 03:55:47,489 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1649 states to 1649 states and 2226 transitions. [2023-11-29 03:55:47,490 INFO L78 Accepts]: Start accepts. Automaton has 1649 states and 2226 transitions. Word has length 128 [2023-11-29 03:55:47,490 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:55:47,490 INFO L495 AbstractCegarLoop]: Abstraction has 1649 states and 2226 transitions. [2023-11-29 03:55:47,490 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 12.333333333333334) internal successors, (74), 7 states have internal predecessors, (74), 3 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2023-11-29 03:55:47,490 INFO L276 IsEmpty]: Start isEmpty. Operand 1649 states and 2226 transitions. [2023-11-29 03:55:47,491 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2023-11-29 03:55:47,491 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:55:47,491 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:55:47,495 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0345f207-eb94-43c0-b5d4-be7362f6a67e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (76)] Ended with exit code 0 [2023-11-29 03:55:47,691 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable74,76 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0345f207-eb94-43c0-b5d4-be7362f6a67e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:55:47,691 INFO L420 AbstractCegarLoop]: === Iteration 76 === Targeting ULTIMATE.startErr28ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2023-11-29 03:55:47,692 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:55:47,692 INFO L85 PathProgramCache]: Analyzing trace with hash -825593472, now seen corresponding path program 1 times [2023-11-29 03:55:47,692 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:55:47,692 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [221920514] [2023-11-29 03:55:47,692 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:55:47,692 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:55:47,701 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 03:55:47,701 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1715571836] [2023-11-29 03:55:47,701 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:55:47,701 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:55:47,702 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0345f207-eb94-43c0-b5d4-be7362f6a67e/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:55:47,702 INFO L229 MonitoredProcess]: Starting monitored process 77 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0345f207-eb94-43c0-b5d4-be7362f6a67e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:55:47,703 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0345f207-eb94-43c0-b5d4-be7362f6a67e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (77)] Waiting until timeout for monitored process [2023-11-29 03:55:47,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:55:47,782 INFO L262 TraceCheckSpWp]: Trace formula consists of 260 conjuncts, 10 conjunts are in the unsatisfiable core [2023-11-29 03:55:47,785 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:55:48,158 INFO L134 CoverageAnalysis]: Checked inductivity of 172 backedges. 28 proven. 8 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2023-11-29 03:55:48,159 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 03:55:48,242 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:55:48,242 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [221920514] [2023-11-29 03:55:48,242 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 03:55:48,242 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1715571836] [2023-11-29 03:55:48,243 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1715571836] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 03:55:48,243 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 03:55:48,243 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2023-11-29 03:55:48,243 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [756578693] [2023-11-29 03:55:48,243 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 03:55:48,243 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-29 03:55:48,244 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:55:48,244 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-29 03:55:48,244 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=73, Unknown=0, NotChecked=0, Total=110 [2023-11-29 03:55:48,244 INFO L87 Difference]: Start difference. First operand 1649 states and 2226 transitions. Second operand has 9 states, 8 states have (on average 10.25) internal successors, (82), 9 states have internal predecessors, (82), 3 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2023-11-29 03:55:50,025 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:55:50,026 INFO L93 Difference]: Finished difference Result 1743 states and 2273 transitions. [2023-11-29 03:55:50,026 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-29 03:55:50,026 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 10.25) internal successors, (82), 9 states have internal predecessors, (82), 3 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) Word has length 136 [2023-11-29 03:55:50,027 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:55:50,030 INFO L225 Difference]: With dead ends: 1743 [2023-11-29 03:55:50,030 INFO L226 Difference]: Without dead ends: 1742 [2023-11-29 03:55:50,030 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 149 GetRequests, 138 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=55, Invalid=101, Unknown=0, NotChecked=0, Total=156 [2023-11-29 03:55:50,031 INFO L413 NwaCegarLoop]: 206 mSDtfsCounter, 144 mSDsluCounter, 785 mSDsCounter, 0 mSdLazyCounter, 819 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 148 SdHoareTripleChecker+Valid, 991 SdHoareTripleChecker+Invalid, 824 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 819 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2023-11-29 03:55:50,031 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [148 Valid, 991 Invalid, 824 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 819 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2023-11-29 03:55:50,033 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1742 states. [2023-11-29 03:55:50,622 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1742 to 1661. [2023-11-29 03:55:50,623 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1661 states, 1419 states have (on average 1.3016208597603947) internal successors, (1847), 1462 states have internal predecessors, (1847), 196 states have call successors, (196), 2 states have call predecessors, (196), 2 states have return successors, (196), 196 states have call predecessors, (196), 196 states have call successors, (196) [2023-11-29 03:55:50,626 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1661 states to 1661 states and 2239 transitions. [2023-11-29 03:55:50,626 INFO L78 Accepts]: Start accepts. Automaton has 1661 states and 2239 transitions. Word has length 136 [2023-11-29 03:55:50,626 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:55:50,626 INFO L495 AbstractCegarLoop]: Abstraction has 1661 states and 2239 transitions. [2023-11-29 03:55:50,626 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 10.25) internal successors, (82), 9 states have internal predecessors, (82), 3 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2023-11-29 03:55:50,626 INFO L276 IsEmpty]: Start isEmpty. Operand 1661 states and 2239 transitions. [2023-11-29 03:55:50,627 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2023-11-29 03:55:50,627 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:55:50,627 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:55:50,632 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0345f207-eb94-43c0-b5d4-be7362f6a67e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (77)] Ended with exit code 0 [2023-11-29 03:55:50,827 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable75,77 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0345f207-eb94-43c0-b5d4-be7362f6a67e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:55:50,827 INFO L420 AbstractCegarLoop]: === Iteration 77 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2023-11-29 03:55:50,828 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:55:50,828 INFO L85 PathProgramCache]: Analyzing trace with hash 2130022008, now seen corresponding path program 1 times [2023-11-29 03:55:50,828 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:55:50,828 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [676004097] [2023-11-29 03:55:50,828 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:55:50,828 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:55:50,835 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 03:55:50,835 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1541770777] [2023-11-29 03:55:50,835 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:55:50,835 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:55:50,835 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0345f207-eb94-43c0-b5d4-be7362f6a67e/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:55:50,836 INFO L229 MonitoredProcess]: Starting monitored process 78 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0345f207-eb94-43c0-b5d4-be7362f6a67e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:55:50,836 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0345f207-eb94-43c0-b5d4-be7362f6a67e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (78)] Waiting until timeout for monitored process [2023-11-29 03:55:50,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:55:50,895 INFO L262 TraceCheckSpWp]: Trace formula consists of 257 conjuncts, 17 conjunts are in the unsatisfiable core [2023-11-29 03:55:50,896 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:55:51,317 INFO L134 CoverageAnalysis]: Checked inductivity of 174 backedges. 8 proven. 39 refuted. 0 times theorem prover too weak. 127 trivial. 0 not checked. [2023-11-29 03:55:51,317 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 03:55:51,750 INFO L134 CoverageAnalysis]: Checked inductivity of 174 backedges. 8 proven. 39 refuted. 0 times theorem prover too weak. 127 trivial. 0 not checked. [2023-11-29 03:55:51,750 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:55:51,751 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [676004097] [2023-11-29 03:55:51,751 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 03:55:51,751 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1541770777] [2023-11-29 03:55:51,751 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1541770777] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 03:55:51,751 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 03:55:51,751 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13] total 21 [2023-11-29 03:55:51,751 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2041221968] [2023-11-29 03:55:51,751 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 03:55:51,752 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2023-11-29 03:55:51,752 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:55:51,753 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2023-11-29 03:55:51,753 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=356, Unknown=0, NotChecked=0, Total=420 [2023-11-29 03:55:51,753 INFO L87 Difference]: Start difference. First operand 1661 states and 2239 transitions. Second operand has 21 states, 21 states have (on average 7.0) internal successors, (147), 21 states have internal predecessors, (147), 7 states have call successors, (23), 1 states have call predecessors, (23), 2 states have return successors, (24), 6 states have call predecessors, (24), 7 states have call successors, (24) [2023-11-29 03:55:55,230 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:55:55,231 INFO L93 Difference]: Finished difference Result 2740 states and 3712 transitions. [2023-11-29 03:55:55,231 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2023-11-29 03:55:55,231 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 7.0) internal successors, (147), 21 states have internal predecessors, (147), 7 states have call successors, (23), 1 states have call predecessors, (23), 2 states have return successors, (24), 6 states have call predecessors, (24), 7 states have call successors, (24) Word has length 136 [2023-11-29 03:55:55,232 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:55:55,234 INFO L225 Difference]: With dead ends: 2740 [2023-11-29 03:55:55,234 INFO L226 Difference]: Without dead ends: 1900 [2023-11-29 03:55:55,236 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 295 GetRequests, 251 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 400 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=438, Invalid=1632, Unknown=0, NotChecked=0, Total=2070 [2023-11-29 03:55:55,236 INFO L413 NwaCegarLoop]: 105 mSDtfsCounter, 820 mSDsluCounter, 1101 mSDsCounter, 0 mSdLazyCounter, 1500 mSolverCounterSat, 84 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 820 SdHoareTripleChecker+Valid, 1206 SdHoareTripleChecker+Invalid, 1584 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 84 IncrementalHoareTripleChecker+Valid, 1500 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2023-11-29 03:55:55,236 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [820 Valid, 1206 Invalid, 1584 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [84 Valid, 1500 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2023-11-29 03:55:55,238 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1900 states. [2023-11-29 03:55:55,936 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1900 to 1847. [2023-11-29 03:55:55,938 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1847 states, 1585 states have (on average 1.2864353312302839) internal successors, (2039), 1628 states have internal predecessors, (2039), 216 states have call successors, (216), 2 states have call predecessors, (216), 2 states have return successors, (216), 216 states have call predecessors, (216), 216 states have call successors, (216) [2023-11-29 03:55:55,941 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1847 states to 1847 states and 2471 transitions. [2023-11-29 03:55:55,941 INFO L78 Accepts]: Start accepts. Automaton has 1847 states and 2471 transitions. Word has length 136 [2023-11-29 03:55:55,941 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:55:55,941 INFO L495 AbstractCegarLoop]: Abstraction has 1847 states and 2471 transitions. [2023-11-29 03:55:55,941 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 7.0) internal successors, (147), 21 states have internal predecessors, (147), 7 states have call successors, (23), 1 states have call predecessors, (23), 2 states have return successors, (24), 6 states have call predecessors, (24), 7 states have call successors, (24) [2023-11-29 03:55:55,942 INFO L276 IsEmpty]: Start isEmpty. Operand 1847 states and 2471 transitions. [2023-11-29 03:55:55,943 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2023-11-29 03:55:55,943 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:55:55,943 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:55:55,948 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0345f207-eb94-43c0-b5d4-be7362f6a67e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (78)] Ended with exit code 0 [2023-11-29 03:55:56,143 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable76,78 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0345f207-eb94-43c0-b5d4-be7362f6a67e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:55:56,144 INFO L420 AbstractCegarLoop]: === Iteration 78 === Targeting ULTIMATE.startErr29ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2023-11-29 03:55:56,144 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:55:56,144 INFO L85 PathProgramCache]: Analyzing trace with hash 176406295, now seen corresponding path program 1 times [2023-11-29 03:55:56,144 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:55:56,144 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1536972856] [2023-11-29 03:55:56,144 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:55:56,144 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:55:56,153 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 03:55:56,153 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [564036565] [2023-11-29 03:55:56,153 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:55:56,153 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:55:56,153 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0345f207-eb94-43c0-b5d4-be7362f6a67e/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:55:56,154 INFO L229 MonitoredProcess]: Starting monitored process 79 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0345f207-eb94-43c0-b5d4-be7362f6a67e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:55:56,155 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0345f207-eb94-43c0-b5d4-be7362f6a67e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (79)] Waiting until timeout for monitored process [2023-11-29 03:55:56,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:55:56,242 INFO L262 TraceCheckSpWp]: Trace formula consists of 261 conjuncts, 13 conjunts are in the unsatisfiable core [2023-11-29 03:55:56,245 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:55:56,618 INFO L134 CoverageAnalysis]: Checked inductivity of 173 backedges. 0 proven. 37 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2023-11-29 03:55:56,618 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 03:55:56,700 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:55:56,700 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1536972856] [2023-11-29 03:55:56,700 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 03:55:56,700 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [564036565] [2023-11-29 03:55:56,701 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [564036565] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 03:55:56,701 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 03:55:56,701 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2023-11-29 03:55:56,701 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1302601063] [2023-11-29 03:55:56,701 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 03:55:56,701 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-29 03:55:56,702 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:55:56,702 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-29 03:55:56,702 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2023-11-29 03:55:56,702 INFO L87 Difference]: Start difference. First operand 1847 states and 2471 transitions. Second operand has 9 states, 8 states have (on average 10.375) internal successors, (83), 9 states have internal predecessors, (83), 3 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2023-11-29 03:55:57,930 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:55:57,930 INFO L93 Difference]: Finished difference Result 2274 states and 2962 transitions. [2023-11-29 03:55:57,931 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-29 03:55:57,931 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 10.375) internal successors, (83), 9 states have internal predecessors, (83), 3 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) Word has length 137 [2023-11-29 03:55:57,931 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:55:57,934 INFO L225 Difference]: With dead ends: 2274 [2023-11-29 03:55:57,934 INFO L226 Difference]: Without dead ends: 2273 [2023-11-29 03:55:57,934 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 149 GetRequests, 140 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2023-11-29 03:55:57,934 INFO L413 NwaCegarLoop]: 139 mSDtfsCounter, 271 mSDsluCounter, 523 mSDsCounter, 0 mSdLazyCounter, 489 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 287 SdHoareTripleChecker+Valid, 662 SdHoareTripleChecker+Invalid, 493 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 489 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-29 03:55:57,935 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [287 Valid, 662 Invalid, 493 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 489 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-29 03:55:57,936 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2273 states. [2023-11-29 03:55:58,613 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2273 to 1862. [2023-11-29 03:55:58,615 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1862 states, 1600 states have (on average 1.285) internal successors, (2056), 1643 states have internal predecessors, (2056), 216 states have call successors, (216), 2 states have call predecessors, (216), 2 states have return successors, (216), 216 states have call predecessors, (216), 216 states have call successors, (216) [2023-11-29 03:55:58,618 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1862 states to 1862 states and 2488 transitions. [2023-11-29 03:55:58,618 INFO L78 Accepts]: Start accepts. Automaton has 1862 states and 2488 transitions. Word has length 137 [2023-11-29 03:55:58,619 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:55:58,619 INFO L495 AbstractCegarLoop]: Abstraction has 1862 states and 2488 transitions. [2023-11-29 03:55:58,619 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 10.375) internal successors, (83), 9 states have internal predecessors, (83), 3 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2023-11-29 03:55:58,619 INFO L276 IsEmpty]: Start isEmpty. Operand 1862 states and 2488 transitions. [2023-11-29 03:55:58,620 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2023-11-29 03:55:58,620 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:55:58,620 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:55:58,626 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0345f207-eb94-43c0-b5d4-be7362f6a67e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (79)] Ended with exit code 0 [2023-11-29 03:55:58,820 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 79 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0345f207-eb94-43c0-b5d4-be7362f6a67e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable77 [2023-11-29 03:55:58,821 INFO L420 AbstractCegarLoop]: === Iteration 79 === Targeting ULTIMATE.startErr40ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2023-11-29 03:55:58,821 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:55:58,821 INFO L85 PathProgramCache]: Analyzing trace with hash 1650925917, now seen corresponding path program 1 times [2023-11-29 03:55:58,821 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:55:58,821 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1939208893] [2023-11-29 03:55:58,821 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:55:58,822 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:55:58,830 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 03:55:58,830 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [970582946] [2023-11-29 03:55:58,830 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:55:58,830 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:55:58,830 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0345f207-eb94-43c0-b5d4-be7362f6a67e/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:55:58,831 INFO L229 MonitoredProcess]: Starting monitored process 80 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0345f207-eb94-43c0-b5d4-be7362f6a67e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:55:58,834 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0345f207-eb94-43c0-b5d4-be7362f6a67e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (80)] Waiting until timeout for monitored process [2023-11-29 03:55:58,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:55:58,903 INFO L262 TraceCheckSpWp]: Trace formula consists of 251 conjuncts, 44 conjunts are in the unsatisfiable core [2023-11-29 03:55:58,906 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:56:01,308 INFO L134 CoverageAnalysis]: Checked inductivity of 166 backedges. 12 proven. 63 refuted. 0 times theorem prover too weak. 91 trivial. 0 not checked. [2023-11-29 03:56:01,308 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 03:56:05,656 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:56:05,656 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1939208893] [2023-11-29 03:56:05,656 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 03:56:05,656 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [970582946] [2023-11-29 03:56:05,656 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [970582946] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 03:56:05,656 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 03:56:05,656 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17] total 17 [2023-11-29 03:56:05,657 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [785293304] [2023-11-29 03:56:05,657 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 03:56:05,657 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2023-11-29 03:56:05,657 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:56:05,658 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2023-11-29 03:56:05,658 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=108, Invalid=397, Unknown=1, NotChecked=0, Total=506 [2023-11-29 03:56:05,658 INFO L87 Difference]: Start difference. First operand 1862 states and 2488 transitions. Second operand has 18 states, 17 states have (on average 5.235294117647059) internal successors, (89), 18 states have internal predecessors, (89), 6 states have call successors, (12), 1 states have call predecessors, (12), 3 states have return successors, (12), 4 states have call predecessors, (12), 6 states have call successors, (12) [2023-11-29 03:56:08,385 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:56:08,385 INFO L93 Difference]: Finished difference Result 1933 states and 2530 transitions. [2023-11-29 03:56:08,385 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-11-29 03:56:08,386 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 17 states have (on average 5.235294117647059) internal successors, (89), 18 states have internal predecessors, (89), 6 states have call successors, (12), 1 states have call predecessors, (12), 3 states have return successors, (12), 4 states have call predecessors, (12), 6 states have call successors, (12) Word has length 137 [2023-11-29 03:56:08,386 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:56:08,389 INFO L225 Difference]: With dead ends: 1933 [2023-11-29 03:56:08,389 INFO L226 Difference]: Without dead ends: 1931 [2023-11-29 03:56:08,390 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 168 GetRequests, 141 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 164 ImplicationChecksByTransitivity, 4.9s TimeCoverageRelationStatistics Valid=161, Invalid=650, Unknown=1, NotChecked=0, Total=812 [2023-11-29 03:56:08,390 INFO L413 NwaCegarLoop]: 83 mSDtfsCounter, 517 mSDsluCounter, 629 mSDsCounter, 0 mSdLazyCounter, 1652 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 537 SdHoareTripleChecker+Valid, 712 SdHoareTripleChecker+Invalid, 1677 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 1652 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2023-11-29 03:56:08,390 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [537 Valid, 712 Invalid, 1677 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 1652 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2023-11-29 03:56:08,392 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1931 states. [2023-11-29 03:56:09,084 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1931 to 1872. [2023-11-29 03:56:09,085 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1872 states, 1610 states have (on average 1.2832298136645963) internal successors, (2066), 1653 states have internal predecessors, (2066), 216 states have call successors, (216), 2 states have call predecessors, (216), 2 states have return successors, (216), 216 states have call predecessors, (216), 216 states have call successors, (216) [2023-11-29 03:56:09,088 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1872 states to 1872 states and 2498 transitions. [2023-11-29 03:56:09,089 INFO L78 Accepts]: Start accepts. Automaton has 1872 states and 2498 transitions. Word has length 137 [2023-11-29 03:56:09,089 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:56:09,089 INFO L495 AbstractCegarLoop]: Abstraction has 1872 states and 2498 transitions. [2023-11-29 03:56:09,089 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 17 states have (on average 5.235294117647059) internal successors, (89), 18 states have internal predecessors, (89), 6 states have call successors, (12), 1 states have call predecessors, (12), 3 states have return successors, (12), 4 states have call predecessors, (12), 6 states have call successors, (12) [2023-11-29 03:56:09,089 INFO L276 IsEmpty]: Start isEmpty. Operand 1872 states and 2498 transitions. [2023-11-29 03:56:09,090 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2023-11-29 03:56:09,090 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:56:09,090 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:56:09,095 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0345f207-eb94-43c0-b5d4-be7362f6a67e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (80)] Ended with exit code 0 [2023-11-29 03:56:09,290 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 80 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0345f207-eb94-43c0-b5d4-be7362f6a67e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable78 [2023-11-29 03:56:09,291 INFO L420 AbstractCegarLoop]: === Iteration 80 === Targeting ULTIMATE.startErr30ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2023-11-29 03:56:09,291 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:56:09,291 INFO L85 PathProgramCache]: Analyzing trace with hash 1173628002, now seen corresponding path program 1 times [2023-11-29 03:56:09,291 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:56:09,291 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2134042683] [2023-11-29 03:56:09,291 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:56:09,291 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:56:09,299 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 03:56:09,299 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1992243519] [2023-11-29 03:56:09,299 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:56:09,300 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:56:09,300 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0345f207-eb94-43c0-b5d4-be7362f6a67e/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:56:09,300 INFO L229 MonitoredProcess]: Starting monitored process 81 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0345f207-eb94-43c0-b5d4-be7362f6a67e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:56:09,302 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0345f207-eb94-43c0-b5d4-be7362f6a67e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (81)] Waiting until timeout for monitored process [2023-11-29 03:56:09,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:56:09,360 INFO L262 TraceCheckSpWp]: Trace formula consists of 262 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-29 03:56:09,362 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:56:09,441 INFO L134 CoverageAnalysis]: Checked inductivity of 174 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 164 trivial. 0 not checked. [2023-11-29 03:56:09,441 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 03:56:09,788 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:56:09,789 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2134042683] [2023-11-29 03:56:09,789 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 03:56:09,789 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1992243519] [2023-11-29 03:56:09,789 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1992243519] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 03:56:09,789 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 03:56:09,789 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2023-11-29 03:56:09,789 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [745187469] [2023-11-29 03:56:09,789 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 03:56:09,789 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 03:56:09,790 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:56:09,790 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 03:56:09,790 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2023-11-29 03:56:09,790 INFO L87 Difference]: Start difference. First operand 1872 states and 2498 transitions. Second operand has 6 states, 5 states have (on average 12.4) internal successors, (62), 6 states have internal predecessors, (62), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-11-29 03:56:10,968 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:56:10,968 INFO L93 Difference]: Finished difference Result 1922 states and 2523 transitions. [2023-11-29 03:56:10,969 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-29 03:56:10,969 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 12.4) internal successors, (62), 6 states have internal predecessors, (62), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 138 [2023-11-29 03:56:10,969 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:56:10,971 INFO L225 Difference]: With dead ends: 1922 [2023-11-29 03:56:10,971 INFO L226 Difference]: Without dead ends: 1921 [2023-11-29 03:56:10,972 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 154 GetRequests, 144 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=44, Invalid=88, Unknown=0, NotChecked=0, Total=132 [2023-11-29 03:56:10,972 INFO L413 NwaCegarLoop]: 110 mSDtfsCounter, 95 mSDsluCounter, 371 mSDsCounter, 0 mSdLazyCounter, 198 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 95 SdHoareTripleChecker+Valid, 481 SdHoareTripleChecker+Invalid, 203 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 198 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-11-29 03:56:10,972 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [95 Valid, 481 Invalid, 203 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 198 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-11-29 03:56:10,973 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1921 states. [2023-11-29 03:56:11,669 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1921 to 1874. [2023-11-29 03:56:11,670 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1874 states, 1612 states have (on average 1.283498759305211) internal successors, (2069), 1655 states have internal predecessors, (2069), 216 states have call successors, (216), 2 states have call predecessors, (216), 2 states have return successors, (216), 216 states have call predecessors, (216), 216 states have call successors, (216) [2023-11-29 03:56:11,674 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1874 states to 1874 states and 2501 transitions. [2023-11-29 03:56:11,674 INFO L78 Accepts]: Start accepts. Automaton has 1874 states and 2501 transitions. Word has length 138 [2023-11-29 03:56:11,674 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:56:11,674 INFO L495 AbstractCegarLoop]: Abstraction has 1874 states and 2501 transitions. [2023-11-29 03:56:11,674 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 12.4) internal successors, (62), 6 states have internal predecessors, (62), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-11-29 03:56:11,674 INFO L276 IsEmpty]: Start isEmpty. Operand 1874 states and 2501 transitions. [2023-11-29 03:56:11,675 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2023-11-29 03:56:11,675 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:56:11,675 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:56:11,680 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0345f207-eb94-43c0-b5d4-be7362f6a67e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (81)] Ended with exit code 0 [2023-11-29 03:56:11,876 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 81 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0345f207-eb94-43c0-b5d4-be7362f6a67e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable79 [2023-11-29 03:56:11,876 INFO L420 AbstractCegarLoop]: === Iteration 81 === Targeting ULTIMATE.startErr31ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2023-11-29 03:56:11,876 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:56:11,876 INFO L85 PathProgramCache]: Analyzing trace with hash 2022729849, now seen corresponding path program 1 times [2023-11-29 03:56:11,876 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:56:11,876 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [51056848] [2023-11-29 03:56:11,877 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:56:11,877 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:56:11,884 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 03:56:11,884 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1217188034] [2023-11-29 03:56:11,884 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:56:11,884 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:56:11,884 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0345f207-eb94-43c0-b5d4-be7362f6a67e/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:56:11,885 INFO L229 MonitoredProcess]: Starting monitored process 82 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0345f207-eb94-43c0-b5d4-be7362f6a67e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:56:11,886 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0345f207-eb94-43c0-b5d4-be7362f6a67e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (82)] Waiting until timeout for monitored process [2023-11-29 03:56:11,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:56:11,957 INFO L262 TraceCheckSpWp]: Trace formula consists of 263 conjuncts, 12 conjunts are in the unsatisfiable core [2023-11-29 03:56:11,959 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:56:12,534 INFO L134 CoverageAnalysis]: Checked inductivity of 175 backedges. 28 proven. 11 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2023-11-29 03:56:12,535 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 03:56:12,644 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:56:12,644 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [51056848] [2023-11-29 03:56:12,645 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 03:56:12,645 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1217188034] [2023-11-29 03:56:12,645 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1217188034] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 03:56:12,645 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 03:56:12,645 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2023-11-29 03:56:12,645 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1831675858] [2023-11-29 03:56:12,645 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 03:56:12,645 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-29 03:56:12,646 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:56:12,646 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-29 03:56:12,646 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=116, Unknown=0, NotChecked=0, Total=156 [2023-11-29 03:56:12,646 INFO L87 Difference]: Start difference. First operand 1874 states and 2501 transitions. Second operand has 10 states, 9 states have (on average 9.444444444444445) internal successors, (85), 10 states have internal predecessors, (85), 3 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2023-11-29 03:56:14,362 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:56:14,363 INFO L93 Difference]: Finished difference Result 1952 states and 2530 transitions. [2023-11-29 03:56:14,363 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-29 03:56:14,363 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 9.444444444444445) internal successors, (85), 10 states have internal predecessors, (85), 3 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) Word has length 139 [2023-11-29 03:56:14,363 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:56:14,371 INFO L225 Difference]: With dead ends: 1952 [2023-11-29 03:56:14,371 INFO L226 Difference]: Without dead ends: 1951 [2023-11-29 03:56:14,372 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 155 GetRequests, 142 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=58, Invalid=152, Unknown=0, NotChecked=0, Total=210 [2023-11-29 03:56:14,372 INFO L413 NwaCegarLoop]: 195 mSDtfsCounter, 191 mSDsluCounter, 583 mSDsCounter, 0 mSdLazyCounter, 792 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 195 SdHoareTripleChecker+Valid, 778 SdHoareTripleChecker+Invalid, 798 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 792 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-11-29 03:56:14,372 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [195 Valid, 778 Invalid, 798 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 792 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-11-29 03:56:14,373 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1951 states. [2023-11-29 03:56:15,071 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1951 to 1875. [2023-11-29 03:56:15,073 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1875 states, 1613 states have (on average 1.2833230006199627) internal successors, (2070), 1656 states have internal predecessors, (2070), 216 states have call successors, (216), 2 states have call predecessors, (216), 2 states have return successors, (216), 216 states have call predecessors, (216), 216 states have call successors, (216) [2023-11-29 03:56:15,076 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1875 states to 1875 states and 2502 transitions. [2023-11-29 03:56:15,077 INFO L78 Accepts]: Start accepts. Automaton has 1875 states and 2502 transitions. Word has length 139 [2023-11-29 03:56:15,077 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:56:15,077 INFO L495 AbstractCegarLoop]: Abstraction has 1875 states and 2502 transitions. [2023-11-29 03:56:15,077 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 9.444444444444445) internal successors, (85), 10 states have internal predecessors, (85), 3 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2023-11-29 03:56:15,077 INFO L276 IsEmpty]: Start isEmpty. Operand 1875 states and 2502 transitions. [2023-11-29 03:56:15,078 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2023-11-29 03:56:15,078 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:56:15,078 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:56:15,083 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0345f207-eb94-43c0-b5d4-be7362f6a67e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (82)] Ended with exit code 0 [2023-11-29 03:56:15,278 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable80,82 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0345f207-eb94-43c0-b5d4-be7362f6a67e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:56:15,279 INFO L420 AbstractCegarLoop]: === Iteration 82 === Targeting ULTIMATE.startErr42ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2023-11-29 03:56:15,279 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:56:15,279 INFO L85 PathProgramCache]: Analyzing trace with hash 1696879711, now seen corresponding path program 1 times [2023-11-29 03:56:15,279 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:56:15,279 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [140058104] [2023-11-29 03:56:15,279 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:56:15,279 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:56:15,288 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 03:56:15,288 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [160785024] [2023-11-29 03:56:15,289 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:56:15,289 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:56:15,289 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0345f207-eb94-43c0-b5d4-be7362f6a67e/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:56:15,290 INFO L229 MonitoredProcess]: Starting monitored process 83 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0345f207-eb94-43c0-b5d4-be7362f6a67e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:56:15,291 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0345f207-eb94-43c0-b5d4-be7362f6a67e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (83)] Waiting until timeout for monitored process [2023-11-29 03:56:15,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:56:15,363 INFO L262 TraceCheckSpWp]: Trace formula consists of 253 conjuncts, 17 conjunts are in the unsatisfiable core [2023-11-29 03:56:15,365 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:56:16,277 INFO L134 CoverageAnalysis]: Checked inductivity of 166 backedges. 0 proven. 39 refuted. 0 times theorem prover too weak. 127 trivial. 0 not checked. [2023-11-29 03:56:16,277 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 03:56:16,517 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:56:16,517 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [140058104] [2023-11-29 03:56:16,517 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 03:56:16,517 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [160785024] [2023-11-29 03:56:16,517 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [160785024] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 03:56:16,517 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 03:56:16,517 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2023-11-29 03:56:16,518 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1964302199] [2023-11-29 03:56:16,518 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 03:56:16,518 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-11-29 03:56:16,518 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:56:16,518 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-11-29 03:56:16,519 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=228, Unknown=0, NotChecked=0, Total=272 [2023-11-29 03:56:16,519 INFO L87 Difference]: Start difference. First operand 1875 states and 2502 transitions. Second operand has 13 states, 12 states have (on average 7.333333333333333) internal successors, (88), 13 states have internal predecessors, (88), 4 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (12), 3 states have call predecessors, (12), 4 states have call successors, (12) [2023-11-29 03:56:18,372 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:56:18,372 INFO L93 Difference]: Finished difference Result 1912 states and 2519 transitions. [2023-11-29 03:56:18,373 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-11-29 03:56:18,373 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 7.333333333333333) internal successors, (88), 13 states have internal predecessors, (88), 4 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (12), 3 states have call predecessors, (12), 4 states have call successors, (12) Word has length 139 [2023-11-29 03:56:18,373 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:56:18,375 INFO L225 Difference]: With dead ends: 1912 [2023-11-29 03:56:18,375 INFO L226 Difference]: Without dead ends: 1911 [2023-11-29 03:56:18,375 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 178 GetRequests, 151 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 96 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=145, Invalid=667, Unknown=0, NotChecked=0, Total=812 [2023-11-29 03:56:18,375 INFO L413 NwaCegarLoop]: 88 mSDtfsCounter, 446 mSDsluCounter, 493 mSDsCounter, 0 mSdLazyCounter, 1162 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 450 SdHoareTripleChecker+Valid, 581 SdHoareTripleChecker+Invalid, 1198 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 1162 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-11-29 03:56:18,375 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [450 Valid, 581 Invalid, 1198 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 1162 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-11-29 03:56:18,376 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1911 states. [2023-11-29 03:56:18,948 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1911 to 1876. [2023-11-29 03:56:18,949 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1876 states, 1614 states have (on average 1.2831474597273853) internal successors, (2071), 1657 states have internal predecessors, (2071), 216 states have call successors, (216), 2 states have call predecessors, (216), 2 states have return successors, (216), 216 states have call predecessors, (216), 216 states have call successors, (216) [2023-11-29 03:56:18,951 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1876 states to 1876 states and 2503 transitions. [2023-11-29 03:56:18,951 INFO L78 Accepts]: Start accepts. Automaton has 1876 states and 2503 transitions. Word has length 139 [2023-11-29 03:56:18,952 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:56:18,952 INFO L495 AbstractCegarLoop]: Abstraction has 1876 states and 2503 transitions. [2023-11-29 03:56:18,952 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 7.333333333333333) internal successors, (88), 13 states have internal predecessors, (88), 4 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (12), 3 states have call predecessors, (12), 4 states have call successors, (12) [2023-11-29 03:56:18,952 INFO L276 IsEmpty]: Start isEmpty. Operand 1876 states and 2503 transitions. [2023-11-29 03:56:18,952 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2023-11-29 03:56:18,952 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:56:18,952 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:56:18,956 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0345f207-eb94-43c0-b5d4-be7362f6a67e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (83)] Forceful destruction successful, exit code 0 [2023-11-29 03:56:19,153 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable81,83 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0345f207-eb94-43c0-b5d4-be7362f6a67e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:56:19,153 INFO L420 AbstractCegarLoop]: === Iteration 83 === Targeting ULTIMATE.startErr32ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2023-11-29 03:56:19,153 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:56:19,153 INFO L85 PathProgramCache]: Analyzing trace with hash -1719883964, now seen corresponding path program 1 times [2023-11-29 03:56:19,153 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:56:19,153 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1789216289] [2023-11-29 03:56:19,153 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:56:19,153 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:56:19,159 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 03:56:19,160 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2002180387] [2023-11-29 03:56:19,160 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:56:19,160 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:56:19,160 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0345f207-eb94-43c0-b5d4-be7362f6a67e/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:56:19,161 INFO L229 MonitoredProcess]: Starting monitored process 84 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0345f207-eb94-43c0-b5d4-be7362f6a67e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:56:19,161 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0345f207-eb94-43c0-b5d4-be7362f6a67e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (84)] Waiting until timeout for monitored process [2023-11-29 03:56:19,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:56:19,227 INFO L262 TraceCheckSpWp]: Trace formula consists of 270 conjuncts, 11 conjunts are in the unsatisfiable core [2023-11-29 03:56:19,229 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:56:19,618 INFO L134 CoverageAnalysis]: Checked inductivity of 176 backedges. 28 proven. 12 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2023-11-29 03:56:19,618 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 03:56:19,721 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:56:19,722 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1789216289] [2023-11-29 03:56:19,722 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 03:56:19,722 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2002180387] [2023-11-29 03:56:19,722 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2002180387] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 03:56:19,722 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 03:56:19,722 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2023-11-29 03:56:19,722 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1509746751] [2023-11-29 03:56:19,722 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 03:56:19,723 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-29 03:56:19,723 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:56:19,723 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-29 03:56:19,723 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2023-11-29 03:56:19,724 INFO L87 Difference]: Start difference. First operand 1876 states and 2503 transitions. Second operand has 10 states, 9 states have (on average 9.555555555555555) internal successors, (86), 10 states have internal predecessors, (86), 3 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2023-11-29 03:56:21,478 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:56:21,478 INFO L93 Difference]: Finished difference Result 1946 states and 2539 transitions. [2023-11-29 03:56:21,479 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-11-29 03:56:21,479 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 9.555555555555555) internal successors, (86), 10 states have internal predecessors, (86), 3 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) Word has length 140 [2023-11-29 03:56:21,479 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:56:21,481 INFO L225 Difference]: With dead ends: 1946 [2023-11-29 03:56:21,481 INFO L226 Difference]: Without dead ends: 1945 [2023-11-29 03:56:21,482 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 164 GetRequests, 145 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=128, Invalid=292, Unknown=0, NotChecked=0, Total=420 [2023-11-29 03:56:21,482 INFO L413 NwaCegarLoop]: 155 mSDtfsCounter, 244 mSDsluCounter, 453 mSDsCounter, 0 mSdLazyCounter, 663 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 244 SdHoareTripleChecker+Valid, 608 SdHoareTripleChecker+Invalid, 683 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 663 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-11-29 03:56:21,482 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [244 Valid, 608 Invalid, 683 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 663 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-11-29 03:56:21,483 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1945 states. [2023-11-29 03:56:22,301 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1945 to 1895. [2023-11-29 03:56:22,303 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1895 states, 1633 states have (on average 1.281077770973668) internal successors, (2092), 1676 states have internal predecessors, (2092), 216 states have call successors, (216), 2 states have call predecessors, (216), 2 states have return successors, (216), 216 states have call predecessors, (216), 216 states have call successors, (216) [2023-11-29 03:56:22,308 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1895 states to 1895 states and 2524 transitions. [2023-11-29 03:56:22,308 INFO L78 Accepts]: Start accepts. Automaton has 1895 states and 2524 transitions. Word has length 140 [2023-11-29 03:56:22,308 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:56:22,308 INFO L495 AbstractCegarLoop]: Abstraction has 1895 states and 2524 transitions. [2023-11-29 03:56:22,309 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 9.555555555555555) internal successors, (86), 10 states have internal predecessors, (86), 3 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2023-11-29 03:56:22,309 INFO L276 IsEmpty]: Start isEmpty. Operand 1895 states and 2524 transitions. [2023-11-29 03:56:22,310 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2023-11-29 03:56:22,310 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:56:22,310 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:56:22,315 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0345f207-eb94-43c0-b5d4-be7362f6a67e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (84)] Forceful destruction successful, exit code 0 [2023-11-29 03:56:22,510 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable82,84 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0345f207-eb94-43c0-b5d4-be7362f6a67e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:56:22,511 INFO L420 AbstractCegarLoop]: === Iteration 84 === Targeting ULTIMATE.startErr43ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2023-11-29 03:56:22,511 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:56:22,511 INFO L85 PathProgramCache]: Analyzing trace with hash 1063663671, now seen corresponding path program 1 times [2023-11-29 03:56:22,511 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:56:22,511 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1368299003] [2023-11-29 03:56:22,511 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:56:22,511 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:56:22,520 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 03:56:22,520 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [419984898] [2023-11-29 03:56:22,520 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:56:22,521 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:56:22,521 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0345f207-eb94-43c0-b5d4-be7362f6a67e/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:56:22,522 INFO L229 MonitoredProcess]: Starting monitored process 85 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0345f207-eb94-43c0-b5d4-be7362f6a67e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:56:22,523 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0345f207-eb94-43c0-b5d4-be7362f6a67e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (85)] Waiting until timeout for monitored process [2023-11-29 03:56:22,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:56:22,597 INFO L262 TraceCheckSpWp]: Trace formula consists of 254 conjuncts, 17 conjunts are in the unsatisfiable core [2023-11-29 03:56:22,599 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:56:23,423 INFO L134 CoverageAnalysis]: Checked inductivity of 166 backedges. 0 proven. 39 refuted. 0 times theorem prover too weak. 127 trivial. 0 not checked. [2023-11-29 03:56:23,423 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 03:56:23,666 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:56:23,666 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1368299003] [2023-11-29 03:56:23,666 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 03:56:23,666 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [419984898] [2023-11-29 03:56:23,667 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [419984898] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 03:56:23,667 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 03:56:23,667 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2023-11-29 03:56:23,667 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [880420523] [2023-11-29 03:56:23,667 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 03:56:23,667 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-11-29 03:56:23,667 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:56:23,668 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-11-29 03:56:23,668 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=228, Unknown=0, NotChecked=0, Total=272 [2023-11-29 03:56:23,668 INFO L87 Difference]: Start difference. First operand 1895 states and 2524 transitions. Second operand has 13 states, 12 states have (on average 7.416666666666667) internal successors, (89), 13 states have internal predecessors, (89), 4 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (12), 3 states have call predecessors, (12), 4 states have call successors, (12) [2023-11-29 03:56:25,616 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:56:25,616 INFO L93 Difference]: Finished difference Result 1930 states and 2539 transitions. [2023-11-29 03:56:25,617 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-11-29 03:56:25,617 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 7.416666666666667) internal successors, (89), 13 states have internal predecessors, (89), 4 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (12), 3 states have call predecessors, (12), 4 states have call successors, (12) Word has length 140 [2023-11-29 03:56:25,617 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:56:25,619 INFO L225 Difference]: With dead ends: 1930 [2023-11-29 03:56:25,619 INFO L226 Difference]: Without dead ends: 1929 [2023-11-29 03:56:25,620 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 180 GetRequests, 153 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 96 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=145, Invalid=667, Unknown=0, NotChecked=0, Total=812 [2023-11-29 03:56:25,620 INFO L413 NwaCegarLoop]: 89 mSDtfsCounter, 443 mSDsluCounter, 537 mSDsCounter, 0 mSdLazyCounter, 1265 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 447 SdHoareTripleChecker+Valid, 626 SdHoareTripleChecker+Invalid, 1301 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 1265 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-11-29 03:56:25,620 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [447 Valid, 626 Invalid, 1301 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 1265 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-11-29 03:56:25,621 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1929 states. [2023-11-29 03:56:26,338 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1929 to 1894. [2023-11-29 03:56:26,339 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1894 states, 1632 states have (on average 1.28125) internal successors, (2091), 1675 states have internal predecessors, (2091), 216 states have call successors, (216), 2 states have call predecessors, (216), 2 states have return successors, (216), 216 states have call predecessors, (216), 216 states have call successors, (216) [2023-11-29 03:56:26,342 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1894 states to 1894 states and 2523 transitions. [2023-11-29 03:56:26,343 INFO L78 Accepts]: Start accepts. Automaton has 1894 states and 2523 transitions. Word has length 140 [2023-11-29 03:56:26,343 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:56:26,343 INFO L495 AbstractCegarLoop]: Abstraction has 1894 states and 2523 transitions. [2023-11-29 03:56:26,343 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 7.416666666666667) internal successors, (89), 13 states have internal predecessors, (89), 4 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (12), 3 states have call predecessors, (12), 4 states have call successors, (12) [2023-11-29 03:56:26,343 INFO L276 IsEmpty]: Start isEmpty. Operand 1894 states and 2523 transitions. [2023-11-29 03:56:26,344 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2023-11-29 03:56:26,344 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:56:26,344 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:56:26,349 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0345f207-eb94-43c0-b5d4-be7362f6a67e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (85)] Ended with exit code 0 [2023-11-29 03:56:26,545 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable83,85 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0345f207-eb94-43c0-b5d4-be7362f6a67e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:56:26,545 INFO L420 AbstractCegarLoop]: === Iteration 85 === Targeting ULTIMATE.startErr33ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2023-11-29 03:56:26,545 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:56:26,545 INFO L85 PathProgramCache]: Analyzing trace with hash -1776795173, now seen corresponding path program 1 times [2023-11-29 03:56:26,545 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:56:26,545 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1942587108] [2023-11-29 03:56:26,545 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:56:26,546 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:56:26,553 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 03:56:26,553 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [613836849] [2023-11-29 03:56:26,553 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:56:26,553 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:56:26,554 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0345f207-eb94-43c0-b5d4-be7362f6a67e/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:56:26,554 INFO L229 MonitoredProcess]: Starting monitored process 86 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0345f207-eb94-43c0-b5d4-be7362f6a67e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:56:26,555 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0345f207-eb94-43c0-b5d4-be7362f6a67e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (86)] Waiting until timeout for monitored process [2023-11-29 03:56:26,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:56:26,631 INFO L262 TraceCheckSpWp]: Trace formula consists of 271 conjuncts, 11 conjunts are in the unsatisfiable core [2023-11-29 03:56:26,632 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:56:27,028 INFO L134 CoverageAnalysis]: Checked inductivity of 177 backedges. 28 proven. 13 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2023-11-29 03:56:27,028 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 03:56:27,120 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:56:27,120 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1942587108] [2023-11-29 03:56:27,120 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 03:56:27,120 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [613836849] [2023-11-29 03:56:27,120 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [613836849] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 03:56:27,120 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 03:56:27,120 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2023-11-29 03:56:27,121 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1909467669] [2023-11-29 03:56:27,121 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 03:56:27,121 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-29 03:56:27,121 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:56:27,122 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-29 03:56:27,122 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=95, Unknown=0, NotChecked=0, Total=132 [2023-11-29 03:56:27,122 INFO L87 Difference]: Start difference. First operand 1894 states and 2523 transitions. Second operand has 10 states, 9 states have (on average 9.666666666666666) internal successors, (87), 10 states have internal predecessors, (87), 3 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2023-11-29 03:56:28,369 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:56:28,370 INFO L93 Difference]: Finished difference Result 1940 states and 2537 transitions. [2023-11-29 03:56:28,370 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-29 03:56:28,370 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 9.666666666666666) internal successors, (87), 10 states have internal predecessors, (87), 3 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) Word has length 141 [2023-11-29 03:56:28,370 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:56:28,372 INFO L225 Difference]: With dead ends: 1940 [2023-11-29 03:56:28,372 INFO L226 Difference]: Without dead ends: 1939 [2023-11-29 03:56:28,372 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 159 GetRequests, 147 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=55, Invalid=127, Unknown=0, NotChecked=0, Total=182 [2023-11-29 03:56:28,372 INFO L413 NwaCegarLoop]: 205 mSDtfsCounter, 210 mSDsluCounter, 557 mSDsCounter, 0 mSdLazyCounter, 604 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 218 SdHoareTripleChecker+Valid, 762 SdHoareTripleChecker+Invalid, 614 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 604 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-11-29 03:56:28,372 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [218 Valid, 762 Invalid, 614 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 604 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-11-29 03:56:28,373 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1939 states. [2023-11-29 03:56:29,116 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1939 to 1895. [2023-11-29 03:56:29,118 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1895 states, 1633 states have (on average 1.281077770973668) internal successors, (2092), 1676 states have internal predecessors, (2092), 216 states have call successors, (216), 2 states have call predecessors, (216), 2 states have return successors, (216), 216 states have call predecessors, (216), 216 states have call successors, (216) [2023-11-29 03:56:29,121 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1895 states to 1895 states and 2524 transitions. [2023-11-29 03:56:29,121 INFO L78 Accepts]: Start accepts. Automaton has 1895 states and 2524 transitions. Word has length 141 [2023-11-29 03:56:29,121 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:56:29,122 INFO L495 AbstractCegarLoop]: Abstraction has 1895 states and 2524 transitions. [2023-11-29 03:56:29,122 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 9.666666666666666) internal successors, (87), 10 states have internal predecessors, (87), 3 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2023-11-29 03:56:29,122 INFO L276 IsEmpty]: Start isEmpty. Operand 1895 states and 2524 transitions. [2023-11-29 03:56:29,123 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2023-11-29 03:56:29,123 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:56:29,123 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:56:29,128 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0345f207-eb94-43c0-b5d4-be7362f6a67e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (86)] Forceful destruction successful, exit code 0 [2023-11-29 03:56:29,324 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable84,86 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0345f207-eb94-43c0-b5d4-be7362f6a67e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:56:29,324 INFO L420 AbstractCegarLoop]: === Iteration 86 === Targeting ULTIMATE.startErr44ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2023-11-29 03:56:29,324 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:56:29,324 INFO L85 PathProgramCache]: Analyzing trace with hash -1386164383, now seen corresponding path program 1 times [2023-11-29 03:56:29,324 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:56:29,324 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1464626109] [2023-11-29 03:56:29,324 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:56:29,325 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:56:29,333 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 03:56:29,333 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1029121047] [2023-11-29 03:56:29,333 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:56:29,333 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:56:29,333 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0345f207-eb94-43c0-b5d4-be7362f6a67e/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:56:29,334 INFO L229 MonitoredProcess]: Starting monitored process 87 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0345f207-eb94-43c0-b5d4-be7362f6a67e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:56:29,335 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0345f207-eb94-43c0-b5d4-be7362f6a67e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (87)] Waiting until timeout for monitored process [2023-11-29 03:56:29,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:56:29,411 INFO L262 TraceCheckSpWp]: Trace formula consists of 255 conjuncts, 10 conjunts are in the unsatisfiable core [2023-11-29 03:56:29,413 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:56:29,876 INFO L134 CoverageAnalysis]: Checked inductivity of 166 backedges. 28 proven. 2 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2023-11-29 03:56:29,876 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 03:56:30,346 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:56:30,346 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1464626109] [2023-11-29 03:56:30,346 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 03:56:30,346 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1029121047] [2023-11-29 03:56:30,346 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1029121047] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 03:56:30,346 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 03:56:30,346 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2023-11-29 03:56:30,347 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1305813140] [2023-11-29 03:56:30,347 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 03:56:30,347 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-29 03:56:30,347 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:56:30,348 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-29 03:56:30,348 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=143, Unknown=0, NotChecked=0, Total=182 [2023-11-29 03:56:30,348 INFO L87 Difference]: Start difference. First operand 1895 states and 2524 transitions. Second operand has 9 states, 8 states have (on average 10.875) internal successors, (87), 9 states have internal predecessors, (87), 3 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2023-11-29 03:56:33,428 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:56:33,428 INFO L93 Difference]: Finished difference Result 2337 states and 3091 transitions. [2023-11-29 03:56:33,429 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-11-29 03:56:33,429 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 10.875) internal successors, (87), 9 states have internal predecessors, (87), 3 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) Word has length 141 [2023-11-29 03:56:33,429 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:56:33,432 INFO L225 Difference]: With dead ends: 2337 [2023-11-29 03:56:33,432 INFO L226 Difference]: Without dead ends: 2334 [2023-11-29 03:56:33,432 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 176 GetRequests, 158 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=89, Invalid=291, Unknown=0, NotChecked=0, Total=380 [2023-11-29 03:56:33,432 INFO L413 NwaCegarLoop]: 184 mSDtfsCounter, 129 mSDsluCounter, 614 mSDsCounter, 0 mSdLazyCounter, 1046 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 137 SdHoareTripleChecker+Valid, 798 SdHoareTripleChecker+Invalid, 1056 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 1046 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2023-11-29 03:56:33,433 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [137 Valid, 798 Invalid, 1056 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 1046 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2023-11-29 03:56:33,434 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2334 states. [2023-11-29 03:56:34,160 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2334 to 1902. [2023-11-29 03:56:34,162 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1902 states, 1640 states have (on average 1.2810975609756097) internal successors, (2101), 1683 states have internal predecessors, (2101), 216 states have call successors, (216), 2 states have call predecessors, (216), 2 states have return successors, (216), 216 states have call predecessors, (216), 216 states have call successors, (216) [2023-11-29 03:56:34,165 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1902 states to 1902 states and 2533 transitions. [2023-11-29 03:56:34,165 INFO L78 Accepts]: Start accepts. Automaton has 1902 states and 2533 transitions. Word has length 141 [2023-11-29 03:56:34,166 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:56:34,166 INFO L495 AbstractCegarLoop]: Abstraction has 1902 states and 2533 transitions. [2023-11-29 03:56:34,166 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 10.875) internal successors, (87), 9 states have internal predecessors, (87), 3 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2023-11-29 03:56:34,166 INFO L276 IsEmpty]: Start isEmpty. Operand 1902 states and 2533 transitions. [2023-11-29 03:56:34,167 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2023-11-29 03:56:34,167 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:56:34,167 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:56:34,172 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0345f207-eb94-43c0-b5d4-be7362f6a67e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (87)] Ended with exit code 0 [2023-11-29 03:56:34,367 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable85,87 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0345f207-eb94-43c0-b5d4-be7362f6a67e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:56:34,368 INFO L420 AbstractCegarLoop]: === Iteration 87 === Targeting ULTIMATE.startErr34ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2023-11-29 03:56:34,368 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:56:34,368 INFO L85 PathProgramCache]: Analyzing trace with hash 753924646, now seen corresponding path program 1 times [2023-11-29 03:56:34,368 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:56:34,368 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1581470618] [2023-11-29 03:56:34,368 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:56:34,368 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:56:34,379 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 03:56:34,379 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [18370237] [2023-11-29 03:56:34,379 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:56:34,379 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:56:34,379 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0345f207-eb94-43c0-b5d4-be7362f6a67e/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:56:34,380 INFO L229 MonitoredProcess]: Starting monitored process 88 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0345f207-eb94-43c0-b5d4-be7362f6a67e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:56:34,381 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0345f207-eb94-43c0-b5d4-be7362f6a67e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (88)] Waiting until timeout for monitored process [2023-11-29 03:56:34,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:56:34,456 INFO L262 TraceCheckSpWp]: Trace formula consists of 272 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-29 03:56:34,458 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:56:34,622 INFO L134 CoverageAnalysis]: Checked inductivity of 178 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 164 trivial. 0 not checked. [2023-11-29 03:56:34,622 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 03:56:38,829 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:56:38,829 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1581470618] [2023-11-29 03:56:38,829 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 03:56:38,829 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [18370237] [2023-11-29 03:56:38,829 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [18370237] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 03:56:38,829 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 03:56:38,829 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2023-11-29 03:56:38,830 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1051036308] [2023-11-29 03:56:38,830 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 03:56:38,830 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 03:56:38,830 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:56:38,830 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 03:56:38,830 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=51, Unknown=1, NotChecked=0, Total=72 [2023-11-29 03:56:38,831 INFO L87 Difference]: Start difference. First operand 1902 states and 2533 transitions. Second operand has 6 states, 5 states have (on average 13.2) internal successors, (66), 6 states have internal predecessors, (66), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-11-29 03:56:39,649 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:56:39,650 INFO L93 Difference]: Finished difference Result 1949 states and 2552 transitions. [2023-11-29 03:56:39,650 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-29 03:56:39,650 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 13.2) internal successors, (66), 6 states have internal predecessors, (66), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 142 [2023-11-29 03:56:39,650 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:56:39,652 INFO L225 Difference]: With dead ends: 1949 [2023-11-29 03:56:39,653 INFO L226 Difference]: Without dead ends: 1948 [2023-11-29 03:56:39,653 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 160 GetRequests, 152 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 4.2s TimeCoverageRelationStatistics Valid=25, Invalid=64, Unknown=1, NotChecked=0, Total=90 [2023-11-29 03:56:39,653 INFO L413 NwaCegarLoop]: 170 mSDtfsCounter, 90 mSDsluCounter, 365 mSDsCounter, 0 mSdLazyCounter, 140 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 94 SdHoareTripleChecker+Valid, 535 SdHoareTripleChecker+Invalid, 141 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 140 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 03:56:39,653 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [94 Valid, 535 Invalid, 141 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 140 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 03:56:39,654 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1948 states. [2023-11-29 03:56:40,338 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1948 to 1905. [2023-11-29 03:56:40,339 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1905 states, 1643 states have (on average 1.2818015824710896) internal successors, (2106), 1686 states have internal predecessors, (2106), 216 states have call successors, (216), 2 states have call predecessors, (216), 2 states have return successors, (216), 216 states have call predecessors, (216), 216 states have call successors, (216) [2023-11-29 03:56:40,343 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1905 states to 1905 states and 2538 transitions. [2023-11-29 03:56:40,343 INFO L78 Accepts]: Start accepts. Automaton has 1905 states and 2538 transitions. Word has length 142 [2023-11-29 03:56:40,343 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:56:40,343 INFO L495 AbstractCegarLoop]: Abstraction has 1905 states and 2538 transitions. [2023-11-29 03:56:40,343 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 13.2) internal successors, (66), 6 states have internal predecessors, (66), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-11-29 03:56:40,343 INFO L276 IsEmpty]: Start isEmpty. Operand 1905 states and 2538 transitions. [2023-11-29 03:56:40,344 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2023-11-29 03:56:40,344 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:56:40,344 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:56:40,349 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0345f207-eb94-43c0-b5d4-be7362f6a67e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (88)] Forceful destruction successful, exit code 0 [2023-11-29 03:56:40,544 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable86,88 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0345f207-eb94-43c0-b5d4-be7362f6a67e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:56:40,545 INFO L420 AbstractCegarLoop]: === Iteration 88 === Targeting ULTIMATE.startErr45ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2023-11-29 03:56:40,545 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:56:40,545 INFO L85 PathProgramCache]: Analyzing trace with hash -21422727, now seen corresponding path program 1 times [2023-11-29 03:56:40,545 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:56:40,545 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [648095311] [2023-11-29 03:56:40,545 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:56:40,545 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:56:40,553 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 03:56:40,553 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [776367727] [2023-11-29 03:56:40,553 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:56:40,553 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:56:40,553 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0345f207-eb94-43c0-b5d4-be7362f6a67e/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:56:40,554 INFO L229 MonitoredProcess]: Starting monitored process 89 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0345f207-eb94-43c0-b5d4-be7362f6a67e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:56:40,555 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0345f207-eb94-43c0-b5d4-be7362f6a67e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (89)] Waiting until timeout for monitored process [2023-11-29 03:56:40,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:56:40,634 INFO L262 TraceCheckSpWp]: Trace formula consists of 256 conjuncts, 42 conjunts are in the unsatisfiable core [2023-11-29 03:56:40,636 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:56:44,282 INFO L134 CoverageAnalysis]: Checked inductivity of 166 backedges. 12 proven. 54 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2023-11-29 03:56:44,282 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 03:56:49,058 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:56:49,059 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [648095311] [2023-11-29 03:56:49,059 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 03:56:49,059 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [776367727] [2023-11-29 03:56:49,059 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [776367727] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 03:56:49,059 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 03:56:49,059 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14] total 14 [2023-11-29 03:56:49,059 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [971933159] [2023-11-29 03:56:49,059 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 03:56:49,059 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2023-11-29 03:56:49,059 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:56:49,060 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2023-11-29 03:56:49,060 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=330, Unknown=1, NotChecked=0, Total=380 [2023-11-29 03:56:49,060 INFO L87 Difference]: Start difference. First operand 1905 states and 2538 transitions. Second operand has 15 states, 14 states have (on average 6.5) internal successors, (91), 15 states have internal predecessors, (91), 5 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (12), 4 states have call predecessors, (12), 5 states have call successors, (12) [2023-11-29 03:56:52,950 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:56:52,950 INFO L93 Difference]: Finished difference Result 1937 states and 2550 transitions. [2023-11-29 03:56:52,951 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-11-29 03:56:52,951 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 6.5) internal successors, (91), 15 states have internal predecessors, (91), 5 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (12), 4 states have call predecessors, (12), 5 states have call successors, (12) Word has length 142 [2023-11-29 03:56:52,951 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:56:52,953 INFO L225 Difference]: With dead ends: 1937 [2023-11-29 03:56:52,953 INFO L226 Difference]: Without dead ends: 1936 [2023-11-29 03:56:52,954 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 178 GetRequests, 154 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 86 ImplicationChecksByTransitivity, 5.7s TimeCoverageRelationStatistics Valid=84, Invalid=565, Unknown=1, NotChecked=0, Total=650 [2023-11-29 03:56:52,954 INFO L413 NwaCegarLoop]: 108 mSDtfsCounter, 309 mSDsluCounter, 732 mSDsCounter, 0 mSdLazyCounter, 1870 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 321 SdHoareTripleChecker+Valid, 840 SdHoareTripleChecker+Invalid, 1893 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 1870 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2023-11-29 03:56:52,954 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [321 Valid, 840 Invalid, 1893 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 1870 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2023-11-29 03:56:52,955 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1936 states. [2023-11-29 03:56:53,663 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1936 to 1907. [2023-11-29 03:56:53,664 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1907 states, 1645 states have (on average 1.2814589665653495) internal successors, (2108), 1688 states have internal predecessors, (2108), 216 states have call successors, (216), 2 states have call predecessors, (216), 2 states have return successors, (216), 216 states have call predecessors, (216), 216 states have call successors, (216) [2023-11-29 03:56:53,667 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1907 states to 1907 states and 2540 transitions. [2023-11-29 03:56:53,667 INFO L78 Accepts]: Start accepts. Automaton has 1907 states and 2540 transitions. Word has length 142 [2023-11-29 03:56:53,668 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:56:53,668 INFO L495 AbstractCegarLoop]: Abstraction has 1907 states and 2540 transitions. [2023-11-29 03:56:53,668 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 6.5) internal successors, (91), 15 states have internal predecessors, (91), 5 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (12), 4 states have call predecessors, (12), 5 states have call successors, (12) [2023-11-29 03:56:53,668 INFO L276 IsEmpty]: Start isEmpty. Operand 1907 states and 2540 transitions. [2023-11-29 03:56:53,669 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2023-11-29 03:56:53,669 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:56:53,669 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:56:53,673 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0345f207-eb94-43c0-b5d4-be7362f6a67e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (89)] Ended with exit code 0 [2023-11-29 03:56:53,869 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 89 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0345f207-eb94-43c0-b5d4-be7362f6a67e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable87 [2023-11-29 03:56:53,869 INFO L420 AbstractCegarLoop]: === Iteration 89 === Targeting ULTIMATE.startErr35ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2023-11-29 03:56:53,870 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:56:53,870 INFO L85 PathProgramCache]: Analyzing trace with hash 1896827709, now seen corresponding path program 1 times [2023-11-29 03:56:53,870 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:56:53,870 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [70945591] [2023-11-29 03:56:53,870 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:56:53,870 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:56:53,878 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 03:56:53,878 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1807077128] [2023-11-29 03:56:53,878 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:56:53,878 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:56:53,878 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0345f207-eb94-43c0-b5d4-be7362f6a67e/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:56:53,879 INFO L229 MonitoredProcess]: Starting monitored process 90 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0345f207-eb94-43c0-b5d4-be7362f6a67e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:56:53,880 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0345f207-eb94-43c0-b5d4-be7362f6a67e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (90)] Waiting until timeout for monitored process [2023-11-29 03:56:53,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:56:53,960 INFO L262 TraceCheckSpWp]: Trace formula consists of 273 conjuncts, 13 conjunts are in the unsatisfiable core [2023-11-29 03:56:53,962 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:56:54,601 INFO L134 CoverageAnalysis]: Checked inductivity of 179 backedges. 28 proven. 15 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2023-11-29 03:56:54,602 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 03:56:54,721 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:56:54,721 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [70945591] [2023-11-29 03:56:54,721 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 03:56:54,721 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1807077128] [2023-11-29 03:56:54,721 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1807077128] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 03:56:54,722 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 03:56:54,722 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2023-11-29 03:56:54,722 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [858379416] [2023-11-29 03:56:54,722 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 03:56:54,722 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-11-29 03:56:54,722 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:56:54,723 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-11-29 03:56:54,723 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=140, Unknown=0, NotChecked=0, Total=182 [2023-11-29 03:56:54,723 INFO L87 Difference]: Start difference. First operand 1907 states and 2540 transitions. Second operand has 11 states, 10 states have (on average 8.9) internal successors, (89), 11 states have internal predecessors, (89), 3 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2023-11-29 03:56:56,557 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:56:56,557 INFO L93 Difference]: Finished difference Result 1997 states and 2566 transitions. [2023-11-29 03:56:56,557 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2023-11-29 03:56:56,557 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 8.9) internal successors, (89), 11 states have internal predecessors, (89), 3 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) Word has length 143 [2023-11-29 03:56:56,558 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:56:56,560 INFO L225 Difference]: With dead ends: 1997 [2023-11-29 03:56:56,560 INFO L226 Difference]: Without dead ends: 1995 [2023-11-29 03:56:56,561 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 172 GetRequests, 149 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 81 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=152, Invalid=448, Unknown=0, NotChecked=0, Total=600 [2023-11-29 03:56:56,561 INFO L413 NwaCegarLoop]: 151 mSDtfsCounter, 486 mSDsluCounter, 577 mSDsCounter, 0 mSdLazyCounter, 859 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 494 SdHoareTripleChecker+Valid, 728 SdHoareTripleChecker+Invalid, 898 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 859 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-11-29 03:56:56,561 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [494 Valid, 728 Invalid, 898 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 859 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-11-29 03:56:56,562 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1995 states. [2023-11-29 03:56:57,259 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1995 to 1909. [2023-11-29 03:56:57,261 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1909 states, 1647 states have (on average 1.2780813600485732) internal successors, (2105), 1690 states have internal predecessors, (2105), 216 states have call successors, (216), 2 states have call predecessors, (216), 2 states have return successors, (216), 216 states have call predecessors, (216), 216 states have call successors, (216) [2023-11-29 03:56:57,265 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1909 states to 1909 states and 2537 transitions. [2023-11-29 03:56:57,265 INFO L78 Accepts]: Start accepts. Automaton has 1909 states and 2537 transitions. Word has length 143 [2023-11-29 03:56:57,265 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:56:57,265 INFO L495 AbstractCegarLoop]: Abstraction has 1909 states and 2537 transitions. [2023-11-29 03:56:57,265 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 8.9) internal successors, (89), 11 states have internal predecessors, (89), 3 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2023-11-29 03:56:57,265 INFO L276 IsEmpty]: Start isEmpty. Operand 1909 states and 2537 transitions. [2023-11-29 03:56:57,266 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2023-11-29 03:56:57,266 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:56:57,266 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:56:57,271 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0345f207-eb94-43c0-b5d4-be7362f6a67e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (90)] Ended with exit code 0 [2023-11-29 03:56:57,467 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable88,90 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0345f207-eb94-43c0-b5d4-be7362f6a67e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:56:57,467 INFO L420 AbstractCegarLoop]: === Iteration 90 === Targeting ULTIMATE.startErr46ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2023-11-29 03:56:57,467 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:56:57,467 INFO L85 PathProgramCache]: Analyzing trace with hash -664104349, now seen corresponding path program 1 times [2023-11-29 03:56:57,467 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:56:57,467 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [303909932] [2023-11-29 03:56:57,467 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:56:57,467 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:56:57,475 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 03:56:57,475 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [157537166] [2023-11-29 03:56:57,475 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:56:57,475 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:56:57,475 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0345f207-eb94-43c0-b5d4-be7362f6a67e/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:56:57,476 INFO L229 MonitoredProcess]: Starting monitored process 91 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0345f207-eb94-43c0-b5d4-be7362f6a67e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:56:57,477 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0345f207-eb94-43c0-b5d4-be7362f6a67e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (91)] Waiting until timeout for monitored process [2023-11-29 03:56:57,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:56:57,552 INFO L262 TraceCheckSpWp]: Trace formula consists of 257 conjuncts, 24 conjunts are in the unsatisfiable core [2023-11-29 03:56:57,554 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:56:59,117 INFO L134 CoverageAnalysis]: Checked inductivity of 166 backedges. 0 proven. 39 refuted. 0 times theorem prover too weak. 127 trivial. 0 not checked. [2023-11-29 03:56:59,117 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 03:57:00,524 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:57:00,524 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [303909932] [2023-11-29 03:57:00,524 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 03:57:00,524 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [157537166] [2023-11-29 03:57:00,524 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [157537166] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 03:57:00,524 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 03:57:00,524 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15] total 15 [2023-11-29 03:57:00,524 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1609488898] [2023-11-29 03:57:00,525 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 03:57:00,525 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-11-29 03:57:00,525 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:57:00,525 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-11-29 03:57:00,526 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=398, Unknown=1, NotChecked=0, Total=462 [2023-11-29 03:57:00,526 INFO L87 Difference]: Start difference. First operand 1909 states and 2537 transitions. Second operand has 16 states, 15 states have (on average 6.133333333333334) internal successors, (92), 16 states have internal predecessors, (92), 4 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (12), 3 states have call predecessors, (12), 4 states have call successors, (12) [2023-11-29 03:57:02,872 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:57:02,872 INFO L93 Difference]: Finished difference Result 1938 states and 2546 transitions. [2023-11-29 03:57:02,872 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2023-11-29 03:57:02,872 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 6.133333333333334) internal successors, (92), 16 states have internal predecessors, (92), 4 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (12), 3 states have call predecessors, (12), 4 states have call successors, (12) Word has length 143 [2023-11-29 03:57:02,873 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:57:02,875 INFO L225 Difference]: With dead ends: 1938 [2023-11-29 03:57:02,876 INFO L226 Difference]: Without dead ends: 1937 [2023-11-29 03:57:02,876 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 188 GetRequests, 154 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 193 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=189, Invalid=1070, Unknown=1, NotChecked=0, Total=1260 [2023-11-29 03:57:02,877 INFO L413 NwaCegarLoop]: 81 mSDtfsCounter, 428 mSDsluCounter, 425 mSDsCounter, 0 mSdLazyCounter, 1460 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 432 SdHoareTripleChecker+Valid, 506 SdHoareTripleChecker+Invalid, 1495 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 1460 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2023-11-29 03:57:02,877 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [432 Valid, 506 Invalid, 1495 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 1460 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2023-11-29 03:57:02,878 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1937 states. [2023-11-29 03:57:03,556 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1937 to 1910. [2023-11-29 03:57:03,557 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1910 states, 1648 states have (on average 1.2779126213592233) internal successors, (2106), 1691 states have internal predecessors, (2106), 216 states have call successors, (216), 2 states have call predecessors, (216), 2 states have return successors, (216), 216 states have call predecessors, (216), 216 states have call successors, (216) [2023-11-29 03:57:03,561 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1910 states to 1910 states and 2538 transitions. [2023-11-29 03:57:03,561 INFO L78 Accepts]: Start accepts. Automaton has 1910 states and 2538 transitions. Word has length 143 [2023-11-29 03:57:03,561 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:57:03,561 INFO L495 AbstractCegarLoop]: Abstraction has 1910 states and 2538 transitions. [2023-11-29 03:57:03,561 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 6.133333333333334) internal successors, (92), 16 states have internal predecessors, (92), 4 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (12), 3 states have call predecessors, (12), 4 states have call successors, (12) [2023-11-29 03:57:03,561 INFO L276 IsEmpty]: Start isEmpty. Operand 1910 states and 2538 transitions. [2023-11-29 03:57:03,563 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2023-11-29 03:57:03,563 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:57:03,563 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:57:03,568 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0345f207-eb94-43c0-b5d4-be7362f6a67e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (91)] Ended with exit code 0 [2023-11-29 03:57:03,763 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 91 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0345f207-eb94-43c0-b5d4-be7362f6a67e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable89 [2023-11-29 03:57:03,763 INFO L420 AbstractCegarLoop]: === Iteration 91 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2023-11-29 03:57:03,764 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:57:03,764 INFO L85 PathProgramCache]: Analyzing trace with hash 604739689, now seen corresponding path program 1 times [2023-11-29 03:57:03,764 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:57:03,764 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [456741946] [2023-11-29 03:57:03,764 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:57:03,764 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:57:03,773 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 03:57:03,773 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1963718341] [2023-11-29 03:57:03,773 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:57:03,774 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:57:03,774 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0345f207-eb94-43c0-b5d4-be7362f6a67e/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:57:03,775 INFO L229 MonitoredProcess]: Starting monitored process 92 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0345f207-eb94-43c0-b5d4-be7362f6a67e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:57:03,776 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0345f207-eb94-43c0-b5d4-be7362f6a67e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (92)] Waiting until timeout for monitored process [2023-11-29 03:57:03,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:57:03,847 INFO L262 TraceCheckSpWp]: Trace formula consists of 255 conjuncts, 12 conjunts are in the unsatisfiable core [2023-11-29 03:57:03,849 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:57:04,135 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 98 proven. 35 refuted. 0 times theorem prover too weak. 131 trivial. 0 not checked. [2023-11-29 03:57:04,135 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 03:57:04,523 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 32 proven. 37 refuted. 0 times theorem prover too weak. 195 trivial. 0 not checked. [2023-11-29 03:57:04,523 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:57:04,524 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [456741946] [2023-11-29 03:57:04,524 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 03:57:04,524 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1963718341] [2023-11-29 03:57:04,524 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1963718341] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 03:57:04,524 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 03:57:04,524 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 18 [2023-11-29 03:57:04,524 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [341649232] [2023-11-29 03:57:04,524 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 03:57:04,525 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2023-11-29 03:57:04,525 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:57:04,525 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2023-11-29 03:57:04,525 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=249, Unknown=0, NotChecked=0, Total=306 [2023-11-29 03:57:04,525 INFO L87 Difference]: Start difference. First operand 1910 states and 2538 transitions. Second operand has 18 states, 18 states have (on average 8.222222222222221) internal successors, (148), 18 states have internal predecessors, (148), 8 states have call successors, (27), 2 states have call predecessors, (27), 3 states have return successors, (28), 7 states have call predecessors, (28), 8 states have call successors, (28) [2023-11-29 03:57:05,754 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:57:05,755 INFO L93 Difference]: Finished difference Result 2408 states and 3234 transitions. [2023-11-29 03:57:05,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2023-11-29 03:57:05,755 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 8.222222222222221) internal successors, (148), 18 states have internal predecessors, (148), 8 states have call successors, (27), 2 states have call predecessors, (27), 3 states have return successors, (28), 7 states have call predecessors, (28), 8 states have call successors, (28) Word has length 145 [2023-11-29 03:57:05,755 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:57:05,757 INFO L225 Difference]: With dead ends: 2408 [2023-11-29 03:57:05,757 INFO L226 Difference]: Without dead ends: 1104 [2023-11-29 03:57:05,759 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 303 GetRequests, 271 SyntacticMatches, 1 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 151 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=233, Invalid=823, Unknown=0, NotChecked=0, Total=1056 [2023-11-29 03:57:05,759 INFO L413 NwaCegarLoop]: 76 mSDtfsCounter, 501 mSDsluCounter, 588 mSDsCounter, 0 mSdLazyCounter, 897 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 505 SdHoareTripleChecker+Valid, 664 SdHoareTripleChecker+Invalid, 935 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 897 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-11-29 03:57:05,759 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [505 Valid, 664 Invalid, 935 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 897 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-11-29 03:57:05,760 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1104 states. [2023-11-29 03:57:06,111 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1104 to 1079. [2023-11-29 03:57:06,112 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1079 states, 913 states have (on average 1.3132530120481927) internal successors, (1199), 956 states have internal predecessors, (1199), 120 states have call successors, (120), 2 states have call predecessors, (120), 2 states have return successors, (120), 120 states have call predecessors, (120), 120 states have call successors, (120) [2023-11-29 03:57:06,114 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1079 states to 1079 states and 1439 transitions. [2023-11-29 03:57:06,114 INFO L78 Accepts]: Start accepts. Automaton has 1079 states and 1439 transitions. Word has length 145 [2023-11-29 03:57:06,114 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:57:06,114 INFO L495 AbstractCegarLoop]: Abstraction has 1079 states and 1439 transitions. [2023-11-29 03:57:06,114 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 8.222222222222221) internal successors, (148), 18 states have internal predecessors, (148), 8 states have call successors, (27), 2 states have call predecessors, (27), 3 states have return successors, (28), 7 states have call predecessors, (28), 8 states have call successors, (28) [2023-11-29 03:57:06,114 INFO L276 IsEmpty]: Start isEmpty. Operand 1079 states and 1439 transitions. [2023-11-29 03:57:06,115 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2023-11-29 03:57:06,115 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:57:06,115 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:57:06,119 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0345f207-eb94-43c0-b5d4-be7362f6a67e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (92)] Ended with exit code 0 [2023-11-29 03:57:06,315 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable90,92 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0345f207-eb94-43c0-b5d4-be7362f6a67e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:57:06,316 INFO L420 AbstractCegarLoop]: === Iteration 92 === Targeting ULTIMATE.startErr47ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2023-11-29 03:57:06,316 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:57:06,316 INFO L85 PathProgramCache]: Analyzing trace with hash 887601851, now seen corresponding path program 1 times [2023-11-29 03:57:06,316 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:57:06,316 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [397575806] [2023-11-29 03:57:06,316 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:57:06,316 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:57:06,324 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 03:57:06,325 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1460395570] [2023-11-29 03:57:06,325 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:57:06,325 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:57:06,325 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0345f207-eb94-43c0-b5d4-be7362f6a67e/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:57:06,326 INFO L229 MonitoredProcess]: Starting monitored process 93 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0345f207-eb94-43c0-b5d4-be7362f6a67e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:57:06,327 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0345f207-eb94-43c0-b5d4-be7362f6a67e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (93)] Waiting until timeout for monitored process [2023-11-29 03:57:06,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:57:06,390 INFO L262 TraceCheckSpWp]: Trace formula consists of 258 conjuncts, 23 conjunts are in the unsatisfiable core [2023-11-29 03:57:06,392 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:57:08,548 INFO L134 CoverageAnalysis]: Checked inductivity of 166 backedges. 0 proven. 39 refuted. 0 times theorem prover too weak. 127 trivial. 0 not checked. [2023-11-29 03:57:08,548 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 03:57:09,720 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:57:09,720 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [397575806] [2023-11-29 03:57:09,720 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 03:57:09,720 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1460395570] [2023-11-29 03:57:09,720 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1460395570] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 03:57:09,720 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 03:57:09,720 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15] total 15 [2023-11-29 03:57:09,720 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1179589914] [2023-11-29 03:57:09,721 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 03:57:09,721 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-11-29 03:57:09,721 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:57:09,721 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-11-29 03:57:09,722 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=403, Unknown=0, NotChecked=0, Total=462 [2023-11-29 03:57:09,722 INFO L87 Difference]: Start difference. First operand 1079 states and 1439 transitions. Second operand has 16 states, 15 states have (on average 6.2) internal successors, (93), 16 states have internal predecessors, (93), 4 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (12), 3 states have call predecessors, (12), 4 states have call successors, (12) [2023-11-29 03:57:12,307 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:57:12,308 INFO L93 Difference]: Finished difference Result 1089 states and 1444 transitions. [2023-11-29 03:57:12,308 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2023-11-29 03:57:12,308 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 6.2) internal successors, (93), 16 states have internal predecessors, (93), 4 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (12), 3 states have call predecessors, (12), 4 states have call successors, (12) Word has length 144 [2023-11-29 03:57:12,308 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:57:12,310 INFO L225 Difference]: With dead ends: 1089 [2023-11-29 03:57:12,310 INFO L226 Difference]: Without dead ends: 1088 [2023-11-29 03:57:12,310 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 190 GetRequests, 156 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 167 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=174, Invalid=1086, Unknown=0, NotChecked=0, Total=1260 [2023-11-29 03:57:12,311 INFO L413 NwaCegarLoop]: 67 mSDtfsCounter, 311 mSDsluCounter, 400 mSDsCounter, 0 mSdLazyCounter, 1509 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 315 SdHoareTripleChecker+Valid, 467 SdHoareTripleChecker+Invalid, 1533 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 1509 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2023-11-29 03:57:12,311 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [315 Valid, 467 Invalid, 1533 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 1509 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2023-11-29 03:57:12,312 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1088 states. [2023-11-29 03:57:12,721 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1088 to 1080. [2023-11-29 03:57:12,722 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1080 states, 914 states have (on average 1.312910284463895) internal successors, (1200), 957 states have internal predecessors, (1200), 120 states have call successors, (120), 2 states have call predecessors, (120), 2 states have return successors, (120), 120 states have call predecessors, (120), 120 states have call successors, (120) [2023-11-29 03:57:12,724 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1080 states to 1080 states and 1440 transitions. [2023-11-29 03:57:12,724 INFO L78 Accepts]: Start accepts. Automaton has 1080 states and 1440 transitions. Word has length 144 [2023-11-29 03:57:12,724 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:57:12,724 INFO L495 AbstractCegarLoop]: Abstraction has 1080 states and 1440 transitions. [2023-11-29 03:57:12,724 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 6.2) internal successors, (93), 16 states have internal predecessors, (93), 4 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (12), 3 states have call predecessors, (12), 4 states have call successors, (12) [2023-11-29 03:57:12,724 INFO L276 IsEmpty]: Start isEmpty. Operand 1080 states and 1440 transitions. [2023-11-29 03:57:12,725 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2023-11-29 03:57:12,725 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:57:12,725 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:57:12,730 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0345f207-eb94-43c0-b5d4-be7362f6a67e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (93)] Ended with exit code 0 [2023-11-29 03:57:12,925 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable91,93 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0345f207-eb94-43c0-b5d4-be7362f6a67e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:57:12,926 INFO L420 AbstractCegarLoop]: === Iteration 93 === Targeting ULTIMATE.startErr48ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2023-11-29 03:57:12,926 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:57:12,926 INFO L85 PathProgramCache]: Analyzing trace with hash 1745853797, now seen corresponding path program 1 times [2023-11-29 03:57:12,926 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:57:12,926 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1379999566] [2023-11-29 03:57:12,926 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:57:12,926 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:57:12,936 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 03:57:12,936 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2059711292] [2023-11-29 03:57:12,936 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:57:12,936 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:57:12,936 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0345f207-eb94-43c0-b5d4-be7362f6a67e/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:57:12,937 INFO L229 MonitoredProcess]: Starting monitored process 94 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0345f207-eb94-43c0-b5d4-be7362f6a67e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:57:12,938 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0345f207-eb94-43c0-b5d4-be7362f6a67e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (94)] Waiting until timeout for monitored process [2023-11-29 03:57:13,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:57:13,016 INFO L262 TraceCheckSpWp]: Trace formula consists of 259 conjuncts, 49 conjunts are in the unsatisfiable core [2023-11-29 03:57:13,018 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:57:15,030 INFO L134 CoverageAnalysis]: Checked inductivity of 166 backedges. 15 proven. 36 refuted. 0 times theorem prover too weak. 115 trivial. 0 not checked. [2023-11-29 03:57:15,030 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 03:57:16,981 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:57:16,982 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1379999566] [2023-11-29 03:57:16,982 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 03:57:16,982 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2059711292] [2023-11-29 03:57:16,982 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2059711292] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 03:57:16,982 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 03:57:16,982 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16] total 16 [2023-11-29 03:57:16,982 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1492409146] [2023-11-29 03:57:16,982 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 03:57:16,983 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2023-11-29 03:57:16,983 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:57:16,983 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2023-11-29 03:57:16,983 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=533, Unknown=0, NotChecked=0, Total=600 [2023-11-29 03:57:16,984 INFO L87 Difference]: Start difference. First operand 1080 states and 1440 transitions. Second operand has 17 states, 16 states have (on average 5.875) internal successors, (94), 17 states have internal predecessors, (94), 4 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (12), 4 states have call predecessors, (12), 4 states have call successors, (12) [2023-11-29 03:57:21,090 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:57:21,091 INFO L93 Difference]: Finished difference Result 1090 states and 1445 transitions. [2023-11-29 03:57:21,091 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2023-11-29 03:57:21,091 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 5.875) internal successors, (94), 17 states have internal predecessors, (94), 4 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (12), 4 states have call predecessors, (12), 4 states have call successors, (12) Word has length 145 [2023-11-29 03:57:21,091 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:57:21,093 INFO L225 Difference]: With dead ends: 1090 [2023-11-29 03:57:21,093 INFO L226 Difference]: Without dead ends: 1089 [2023-11-29 03:57:21,093 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 204 GetRequests, 171 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 170 ImplicationChecksByTransitivity, 3.8s TimeCoverageRelationStatistics Valid=131, Invalid=1059, Unknown=0, NotChecked=0, Total=1190 [2023-11-29 03:57:21,093 INFO L413 NwaCegarLoop]: 80 mSDtfsCounter, 167 mSDsluCounter, 485 mSDsCounter, 0 mSdLazyCounter, 1744 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 167 SdHoareTripleChecker+Valid, 565 SdHoareTripleChecker+Invalid, 1771 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 1744 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2023-11-29 03:57:21,094 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [167 Valid, 565 Invalid, 1771 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 1744 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2023-11-29 03:57:21,094 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1089 states. [2023-11-29 03:57:21,481 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1089 to 1081. [2023-11-29 03:57:21,482 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1081 states, 915 states have (on average 1.312568306010929) internal successors, (1201), 958 states have internal predecessors, (1201), 120 states have call successors, (120), 2 states have call predecessors, (120), 2 states have return successors, (120), 120 states have call predecessors, (120), 120 states have call successors, (120) [2023-11-29 03:57:21,484 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1081 states to 1081 states and 1441 transitions. [2023-11-29 03:57:21,484 INFO L78 Accepts]: Start accepts. Automaton has 1081 states and 1441 transitions. Word has length 145 [2023-11-29 03:57:21,484 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:57:21,484 INFO L495 AbstractCegarLoop]: Abstraction has 1081 states and 1441 transitions. [2023-11-29 03:57:21,484 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 5.875) internal successors, (94), 17 states have internal predecessors, (94), 4 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (12), 4 states have call predecessors, (12), 4 states have call successors, (12) [2023-11-29 03:57:21,484 INFO L276 IsEmpty]: Start isEmpty. Operand 1081 states and 1441 transitions. [2023-11-29 03:57:21,485 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2023-11-29 03:57:21,485 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:57:21,485 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:57:21,490 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0345f207-eb94-43c0-b5d4-be7362f6a67e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (94)] Ended with exit code 0 [2023-11-29 03:57:21,685 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 94 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0345f207-eb94-43c0-b5d4-be7362f6a67e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable92 [2023-11-29 03:57:21,686 INFO L420 AbstractCegarLoop]: === Iteration 94 === Targeting ULTIMATE.startErr36ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2023-11-29 03:57:21,686 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:57:21,686 INFO L85 PathProgramCache]: Analyzing trace with hash -490387768, now seen corresponding path program 1 times [2023-11-29 03:57:21,686 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:57:21,686 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [708637665] [2023-11-29 03:57:21,686 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:57:21,686 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:57:21,696 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 03:57:21,696 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [123665654] [2023-11-29 03:57:21,696 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:57:21,696 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:57:21,696 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0345f207-eb94-43c0-b5d4-be7362f6a67e/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:57:21,697 INFO L229 MonitoredProcess]: Starting monitored process 95 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0345f207-eb94-43c0-b5d4-be7362f6a67e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:57:21,698 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0345f207-eb94-43c0-b5d4-be7362f6a67e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (95)] Waiting until timeout for monitored process [2023-11-29 03:57:21,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:57:21,785 INFO L262 TraceCheckSpWp]: Trace formula consists of 279 conjuncts, 30 conjunts are in the unsatisfiable core [2023-11-29 03:57:21,787 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:57:22,633 INFO L134 CoverageAnalysis]: Checked inductivity of 183 backedges. 3 proven. 53 refuted. 0 times theorem prover too weak. 127 trivial. 0 not checked. [2023-11-29 03:57:22,633 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 03:57:22,847 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:57:22,847 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [708637665] [2023-11-29 03:57:22,847 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 03:57:22,848 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [123665654] [2023-11-29 03:57:22,848 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [123665654] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 03:57:22,848 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 03:57:22,848 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15] total 15 [2023-11-29 03:57:22,848 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [114055353] [2023-11-29 03:57:22,848 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 03:57:22,848 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-11-29 03:57:22,848 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:57:22,849 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-11-29 03:57:22,849 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=328, Unknown=0, NotChecked=0, Total=380 [2023-11-29 03:57:22,849 INFO L87 Difference]: Start difference. First operand 1081 states and 1441 transitions. Second operand has 16 states, 15 states have (on average 6.333333333333333) internal successors, (95), 15 states have internal predecessors, (95), 4 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (12), 4 states have call predecessors, (12), 4 states have call successors, (12) [2023-11-29 03:57:25,320 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:57:25,320 INFO L93 Difference]: Finished difference Result 1779 states and 2395 transitions. [2023-11-29 03:57:25,320 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2023-11-29 03:57:25,320 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 6.333333333333333) internal successors, (95), 15 states have internal predecessors, (95), 4 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (12), 4 states have call predecessors, (12), 4 states have call successors, (12) Word has length 146 [2023-11-29 03:57:25,321 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:57:25,324 INFO L225 Difference]: With dead ends: 1779 [2023-11-29 03:57:25,324 INFO L226 Difference]: Without dead ends: 1777 [2023-11-29 03:57:25,324 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 181 GetRequests, 149 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 142 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=160, Invalid=962, Unknown=0, NotChecked=0, Total=1122 [2023-11-29 03:57:25,325 INFO L413 NwaCegarLoop]: 149 mSDtfsCounter, 868 mSDsluCounter, 1165 mSDsCounter, 0 mSdLazyCounter, 2588 mSolverCounterSat, 76 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 872 SdHoareTripleChecker+Valid, 1314 SdHoareTripleChecker+Invalid, 2664 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 76 IncrementalHoareTripleChecker+Valid, 2588 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2023-11-29 03:57:25,325 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [872 Valid, 1314 Invalid, 2664 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [76 Valid, 2588 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2023-11-29 03:57:25,327 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1777 states. [2023-11-29 03:57:26,049 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1777 to 1687. [2023-11-29 03:57:26,050 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1687 states, 1445 states have (on average 1.3501730103806229) internal successors, (1951), 1488 states have internal predecessors, (1951), 196 states have call successors, (196), 2 states have call predecessors, (196), 2 states have return successors, (196), 196 states have call predecessors, (196), 196 states have call successors, (196) [2023-11-29 03:57:26,054 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1687 states to 1687 states and 2343 transitions. [2023-11-29 03:57:26,054 INFO L78 Accepts]: Start accepts. Automaton has 1687 states and 2343 transitions. Word has length 146 [2023-11-29 03:57:26,054 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:57:26,054 INFO L495 AbstractCegarLoop]: Abstraction has 1687 states and 2343 transitions. [2023-11-29 03:57:26,054 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 6.333333333333333) internal successors, (95), 15 states have internal predecessors, (95), 4 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (12), 4 states have call predecessors, (12), 4 states have call successors, (12) [2023-11-29 03:57:26,054 INFO L276 IsEmpty]: Start isEmpty. Operand 1687 states and 2343 transitions. [2023-11-29 03:57:26,055 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2023-11-29 03:57:26,055 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:57:26,055 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:57:26,062 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0345f207-eb94-43c0-b5d4-be7362f6a67e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (95)] Forceful destruction successful, exit code 0 [2023-11-29 03:57:26,256 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable93,95 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0345f207-eb94-43c0-b5d4-be7362f6a67e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:57:26,256 INFO L420 AbstractCegarLoop]: === Iteration 95 === Targeting ULTIMATE.startErr49ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2023-11-29 03:57:26,256 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:57:26,256 INFO L85 PathProgramCache]: Analyzing trace with hash -1713106947, now seen corresponding path program 1 times [2023-11-29 03:57:26,256 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:57:26,256 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1168290282] [2023-11-29 03:57:26,257 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:57:26,257 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:57:26,265 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 03:57:26,265 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [208421005] [2023-11-29 03:57:26,265 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:57:26,265 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:57:26,265 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0345f207-eb94-43c0-b5d4-be7362f6a67e/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:57:26,266 INFO L229 MonitoredProcess]: Starting monitored process 96 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0345f207-eb94-43c0-b5d4-be7362f6a67e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:57:26,267 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0345f207-eb94-43c0-b5d4-be7362f6a67e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (96)] Waiting until timeout for monitored process [2023-11-29 03:57:26,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:57:26,348 INFO L262 TraceCheckSpWp]: Trace formula consists of 260 conjuncts, 54 conjunts are in the unsatisfiable core [2023-11-29 03:57:26,350 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:57:28,660 INFO L134 CoverageAnalysis]: Checked inductivity of 166 backedges. 12 proven. 54 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2023-11-29 03:57:28,660 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 03:57:37,089 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:57:37,089 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1168290282] [2023-11-29 03:57:37,089 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 03:57:37,089 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [208421005] [2023-11-29 03:57:37,089 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [208421005] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 03:57:37,089 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 03:57:37,089 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17] total 17 [2023-11-29 03:57:37,090 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [708878178] [2023-11-29 03:57:37,090 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 03:57:37,090 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2023-11-29 03:57:37,090 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:57:37,090 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2023-11-29 03:57:37,091 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=99, Invalid=831, Unknown=0, NotChecked=0, Total=930 [2023-11-29 03:57:37,091 INFO L87 Difference]: Start difference. First operand 1687 states and 2343 transitions. Second operand has 18 states, 17 states have (on average 5.588235294117647) internal successors, (95), 18 states have internal predecessors, (95), 5 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (12), 4 states have call predecessors, (12), 5 states have call successors, (12) [2023-11-29 03:57:42,737 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:57:42,737 INFO L93 Difference]: Finished difference Result 1695 states and 2346 transitions. [2023-11-29 03:57:42,737 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2023-11-29 03:57:42,737 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 17 states have (on average 5.588235294117647) internal successors, (95), 18 states have internal predecessors, (95), 5 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (12), 4 states have call predecessors, (12), 5 states have call successors, (12) Word has length 146 [2023-11-29 03:57:42,738 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:57:42,739 INFO L225 Difference]: With dead ends: 1695 [2023-11-29 03:57:42,739 INFO L226 Difference]: Without dead ends: 1663 [2023-11-29 03:57:42,740 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 261 GetRequests, 224 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 210 ImplicationChecksByTransitivity, 9.3s TimeCoverageRelationStatistics Valid=161, Invalid=1321, Unknown=0, NotChecked=0, Total=1482 [2023-11-29 03:57:42,740 INFO L413 NwaCegarLoop]: 81 mSDtfsCounter, 136 mSDsluCounter, 533 mSDsCounter, 0 mSdLazyCounter, 1894 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 144 SdHoareTripleChecker+Valid, 614 SdHoareTripleChecker+Invalid, 1913 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 1894 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2023-11-29 03:57:42,740 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [144 Valid, 614 Invalid, 1913 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 1894 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2023-11-29 03:57:42,741 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1663 states. [2023-11-29 03:57:43,408 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1663 to 1657. [2023-11-29 03:57:43,409 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1657 states, 1415 states have (on average 1.3568904593639577) internal successors, (1920), 1458 states have internal predecessors, (1920), 196 states have call successors, (196), 2 states have call predecessors, (196), 2 states have return successors, (196), 196 states have call predecessors, (196), 196 states have call successors, (196) [2023-11-29 03:57:43,413 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1657 states to 1657 states and 2312 transitions. [2023-11-29 03:57:43,413 INFO L78 Accepts]: Start accepts. Automaton has 1657 states and 2312 transitions. Word has length 146 [2023-11-29 03:57:43,413 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:57:43,413 INFO L495 AbstractCegarLoop]: Abstraction has 1657 states and 2312 transitions. [2023-11-29 03:57:43,413 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 17 states have (on average 5.588235294117647) internal successors, (95), 18 states have internal predecessors, (95), 5 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (12), 4 states have call predecessors, (12), 5 states have call successors, (12) [2023-11-29 03:57:43,413 INFO L276 IsEmpty]: Start isEmpty. Operand 1657 states and 2312 transitions. [2023-11-29 03:57:43,414 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2023-11-29 03:57:43,414 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:57:43,414 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:57:43,419 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0345f207-eb94-43c0-b5d4-be7362f6a67e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (96)] Ended with exit code 0 [2023-11-29 03:57:43,614 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable94,96 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0345f207-eb94-43c0-b5d4-be7362f6a67e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:57:43,615 INFO L420 AbstractCegarLoop]: === Iteration 96 === Targeting ULTIMATE.startErr37ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2023-11-29 03:57:43,615 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:57:43,615 INFO L85 PathProgramCache]: Analyzing trace with hash 1977848546, now seen corresponding path program 1 times [2023-11-29 03:57:43,615 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:57:43,615 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1729777284] [2023-11-29 03:57:43,615 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:57:43,615 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:57:43,624 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 03:57:43,625 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1828170044] [2023-11-29 03:57:43,625 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:57:43,625 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:57:43,625 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0345f207-eb94-43c0-b5d4-be7362f6a67e/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:57:43,626 INFO L229 MonitoredProcess]: Starting monitored process 97 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0345f207-eb94-43c0-b5d4-be7362f6a67e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:57:43,627 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0345f207-eb94-43c0-b5d4-be7362f6a67e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (97)] Waiting until timeout for monitored process [2023-11-29 03:57:43,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:57:43,709 INFO L262 TraceCheckSpWp]: Trace formula consists of 280 conjuncts, 30 conjunts are in the unsatisfiable core [2023-11-29 03:57:43,711 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:57:44,750 INFO L134 CoverageAnalysis]: Checked inductivity of 183 backedges. 3 proven. 53 refuted. 0 times theorem prover too weak. 127 trivial. 0 not checked. [2023-11-29 03:57:44,750 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 03:57:45,004 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:57:45,004 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1729777284] [2023-11-29 03:57:45,004 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 03:57:45,004 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1828170044] [2023-11-29 03:57:45,005 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1828170044] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 03:57:45,005 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 03:57:45,005 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15] total 15 [2023-11-29 03:57:45,005 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [909189165] [2023-11-29 03:57:45,005 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 03:57:45,005 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-11-29 03:57:45,005 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:57:45,006 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-11-29 03:57:45,006 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=327, Unknown=0, NotChecked=0, Total=380 [2023-11-29 03:57:45,006 INFO L87 Difference]: Start difference. First operand 1657 states and 2312 transitions. Second operand has 16 states, 15 states have (on average 6.4) internal successors, (96), 15 states have internal predecessors, (96), 4 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (12), 4 states have call predecessors, (12), 4 states have call successors, (12) [2023-11-29 03:57:47,602 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:57:47,602 INFO L93 Difference]: Finished difference Result 1747 states and 2351 transitions. [2023-11-29 03:57:47,602 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2023-11-29 03:57:47,603 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 6.4) internal successors, (96), 15 states have internal predecessors, (96), 4 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (12), 4 states have call predecessors, (12), 4 states have call successors, (12) Word has length 147 [2023-11-29 03:57:47,603 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:57:47,605 INFO L225 Difference]: With dead ends: 1747 [2023-11-29 03:57:47,605 INFO L226 Difference]: Without dead ends: 1745 [2023-11-29 03:57:47,605 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 183 GetRequests, 151 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 151 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=165, Invalid=957, Unknown=0, NotChecked=0, Total=1122 [2023-11-29 03:57:47,606 INFO L413 NwaCegarLoop]: 145 mSDtfsCounter, 890 mSDsluCounter, 1026 mSDsCounter, 0 mSdLazyCounter, 2058 mSolverCounterSat, 78 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 894 SdHoareTripleChecker+Valid, 1171 SdHoareTripleChecker+Invalid, 2136 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 78 IncrementalHoareTripleChecker+Valid, 2058 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2023-11-29 03:57:47,606 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [894 Valid, 1171 Invalid, 2136 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [78 Valid, 2058 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2023-11-29 03:57:47,607 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1745 states. [2023-11-29 03:57:48,280 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1745 to 1658. [2023-11-29 03:57:48,281 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1658 states, 1416 states have (on average 1.3559322033898304) internal successors, (1920), 1459 states have internal predecessors, (1920), 196 states have call successors, (196), 2 states have call predecessors, (196), 2 states have return successors, (196), 196 states have call predecessors, (196), 196 states have call successors, (196) [2023-11-29 03:57:48,285 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1658 states to 1658 states and 2312 transitions. [2023-11-29 03:57:48,285 INFO L78 Accepts]: Start accepts. Automaton has 1658 states and 2312 transitions. Word has length 147 [2023-11-29 03:57:48,285 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:57:48,285 INFO L495 AbstractCegarLoop]: Abstraction has 1658 states and 2312 transitions. [2023-11-29 03:57:48,285 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 6.4) internal successors, (96), 15 states have internal predecessors, (96), 4 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (12), 4 states have call predecessors, (12), 4 states have call successors, (12) [2023-11-29 03:57:48,285 INFO L276 IsEmpty]: Start isEmpty. Operand 1658 states and 2312 transitions. [2023-11-29 03:57:48,286 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2023-11-29 03:57:48,286 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:57:48,287 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:57:48,293 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0345f207-eb94-43c0-b5d4-be7362f6a67e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (97)] Ended with exit code 0 [2023-11-29 03:57:48,487 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable95,97 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0345f207-eb94-43c0-b5d4-be7362f6a67e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:57:48,487 INFO L420 AbstractCegarLoop]: === Iteration 97 === Targeting ULTIMATE.startErr38ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2023-11-29 03:57:48,487 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:57:48,488 INFO L85 PathProgramCache]: Analyzing trace with hash 1183762954, now seen corresponding path program 1 times [2023-11-29 03:57:48,488 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:57:48,488 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1269816081] [2023-11-29 03:57:48,488 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:57:48,488 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:57:48,496 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 03:57:48,496 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1981119703] [2023-11-29 03:57:48,496 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:57:48,497 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:57:48,497 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0345f207-eb94-43c0-b5d4-be7362f6a67e/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:57:48,498 INFO L229 MonitoredProcess]: Starting monitored process 98 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0345f207-eb94-43c0-b5d4-be7362f6a67e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:57:48,499 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0345f207-eb94-43c0-b5d4-be7362f6a67e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (98)] Waiting until timeout for monitored process [2023-11-29 03:57:48,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:57:48,583 INFO L262 TraceCheckSpWp]: Trace formula consists of 281 conjuncts, 29 conjunts are in the unsatisfiable core [2023-11-29 03:57:48,586 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:58:00,370 INFO L134 CoverageAnalysis]: Checked inductivity of 183 backedges. 3 proven. 53 refuted. 0 times theorem prover too weak. 127 trivial. 0 not checked. [2023-11-29 03:58:00,370 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 03:58:08,997 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:58:08,997 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1269816081] [2023-11-29 03:58:08,998 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 03:58:08,998 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1981119703] [2023-11-29 03:58:08,998 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1981119703] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 03:58:08,998 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 03:58:08,998 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16] total 16 [2023-11-29 03:58:08,998 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1977023438] [2023-11-29 03:58:08,998 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 03:58:08,998 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2023-11-29 03:58:08,999 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:58:08,999 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2023-11-29 03:58:08,999 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=439, Unknown=5, NotChecked=0, Total=506 [2023-11-29 03:58:08,999 INFO L87 Difference]: Start difference. First operand 1658 states and 2312 transitions. Second operand has 17 states, 16 states have (on average 6.0625) internal successors, (97), 16 states have internal predecessors, (97), 4 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (12), 4 states have call predecessors, (12), 4 states have call successors, (12) [2023-11-29 03:58:14,019 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 03:58:21,607 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.79s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 03:58:25,435 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.82s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 03:58:33,372 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.59s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 03:58:36,601 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.20s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 03:58:43,963 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 03:58:47,983 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 03:58:51,851 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.86s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 03:58:59,400 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.88s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 03:59:02,867 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.45s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 03:59:05,744 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.87s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 03:59:09,309 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.47s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 03:59:13,328 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 03:59:17,513 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.68s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 03:59:21,379 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.85s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 03:59:24,720 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.31s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 03:59:28,508 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.76s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 03:59:31,997 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.40s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 03:59:36,037 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 03:59:39,932 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.86s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 03:59:43,843 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.84s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 03:59:47,923 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 03:59:51,407 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.45s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 03:59:55,490 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.99s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 03:59:59,034 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.50s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 04:00:02,823 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.78s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 04:00:07,500 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.73s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 04:00:11,011 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.48s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 04:00:15,122 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.70s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 04:00:17,865 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.73s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 04:00:25,408 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.79s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 04:00:28,610 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.19s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 04:00:32,627 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.60s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 04:00:37,080 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 04:00:37,500 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:00:37,500 INFO L93 Difference]: Finished difference Result 1753 states and 2357 transitions. [2023-11-29 04:00:37,501 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2023-11-29 04:00:37,501 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 6.0625) internal successors, (97), 16 states have internal predecessors, (97), 4 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (12), 4 states have call predecessors, (12), 4 states have call successors, (12) Word has length 148 [2023-11-29 04:00:37,501 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:00:37,503 INFO L225 Difference]: With dead ends: 1753 [2023-11-29 04:00:37,503 INFO L226 Difference]: Without dead ends: 1751 [2023-11-29 04:00:37,503 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 187 GetRequests, 150 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 220 ImplicationChecksByTransitivity, 37.6s TimeCoverageRelationStatistics Valid=186, Invalid=1291, Unknown=5, NotChecked=0, Total=1482 [2023-11-29 04:00:37,504 INFO L413 NwaCegarLoop]: 146 mSDtfsCounter, 892 mSDsluCounter, 1138 mSDsCounter, 0 mSdLazyCounter, 2291 mSolverCounterSat, 76 mSolverCounterUnsat, 35 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 129.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 896 SdHoareTripleChecker+Valid, 1284 SdHoareTripleChecker+Invalid, 2402 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 76 IncrementalHoareTripleChecker+Valid, 2291 IncrementalHoareTripleChecker+Invalid, 35 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 129.5s IncrementalHoareTripleChecker+Time [2023-11-29 04:00:37,504 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [896 Valid, 1284 Invalid, 2402 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [76 Valid, 2291 Invalid, 35 Unknown, 0 Unchecked, 129.5s Time] [2023-11-29 04:00:37,505 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1751 states. [2023-11-29 04:00:38,208 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1751 to 1659. [2023-11-29 04:00:38,210 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1659 states, 1417 states have (on average 1.347212420606916) internal successors, (1909), 1460 states have internal predecessors, (1909), 196 states have call successors, (196), 2 states have call predecessors, (196), 2 states have return successors, (196), 196 states have call predecessors, (196), 196 states have call successors, (196) [2023-11-29 04:00:38,213 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1659 states to 1659 states and 2301 transitions. [2023-11-29 04:00:38,213 INFO L78 Accepts]: Start accepts. Automaton has 1659 states and 2301 transitions. Word has length 148 [2023-11-29 04:00:38,213 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:00:38,213 INFO L495 AbstractCegarLoop]: Abstraction has 1659 states and 2301 transitions. [2023-11-29 04:00:38,213 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 6.0625) internal successors, (97), 16 states have internal predecessors, (97), 4 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (12), 4 states have call predecessors, (12), 4 states have call successors, (12) [2023-11-29 04:00:38,214 INFO L276 IsEmpty]: Start isEmpty. Operand 1659 states and 2301 transitions. [2023-11-29 04:00:38,214 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2023-11-29 04:00:38,214 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:00:38,215 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 04:00:38,219 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0345f207-eb94-43c0-b5d4-be7362f6a67e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (98)] Ended with exit code 0 [2023-11-29 04:00:38,415 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable96,98 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0345f207-eb94-43c0-b5d4-be7362f6a67e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:00:38,415 INFO L420 AbstractCegarLoop]: === Iteration 98 === Targeting ULTIMATE.startErr39ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2023-11-29 04:00:38,415 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:00:38,415 INFO L85 PathProgramCache]: Analyzing trace with hash -1958053916, now seen corresponding path program 1 times [2023-11-29 04:00:38,415 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:00:38,416 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [401339914] [2023-11-29 04:00:38,416 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:00:38,416 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:00:38,424 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 04:00:38,424 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1327513644] [2023-11-29 04:00:38,424 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:00:38,424 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:00:38,424 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0345f207-eb94-43c0-b5d4-be7362f6a67e/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:00:38,425 INFO L229 MonitoredProcess]: Starting monitored process 99 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0345f207-eb94-43c0-b5d4-be7362f6a67e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:00:38,426 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0345f207-eb94-43c0-b5d4-be7362f6a67e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (99)] Waiting until timeout for monitored process [2023-11-29 04:00:38,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:00:38,510 INFO L262 TraceCheckSpWp]: Trace formula consists of 282 conjuncts, 36 conjunts are in the unsatisfiable core [2023-11-29 04:00:38,512 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:00:40,686 INFO L134 CoverageAnalysis]: Checked inductivity of 183 backedges. 3 proven. 53 refuted. 0 times theorem prover too weak. 127 trivial. 0 not checked. [2023-11-29 04:00:40,686 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 04:00:41,742 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:00:41,742 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [401339914] [2023-11-29 04:00:41,742 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 04:00:41,742 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1327513644] [2023-11-29 04:00:41,743 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1327513644] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 04:00:41,743 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 04:00:41,743 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18] total 18 [2023-11-29 04:00:41,743 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1799528371] [2023-11-29 04:00:41,743 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 04:00:41,744 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2023-11-29 04:00:41,744 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:00:41,744 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2023-11-29 04:00:41,744 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=525, Unknown=0, NotChecked=0, Total=600 [2023-11-29 04:00:41,745 INFO L87 Difference]: Start difference. First operand 1659 states and 2301 transitions. Second operand has 19 states, 18 states have (on average 5.444444444444445) internal successors, (98), 18 states have internal predecessors, (98), 4 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (12), 4 states have call predecessors, (12), 4 states have call successors, (12) [2023-11-29 04:00:49,477 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:00:49,478 INFO L93 Difference]: Finished difference Result 2224 states and 3064 transitions. [2023-11-29 04:00:49,478 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2023-11-29 04:00:49,478 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 18 states have (on average 5.444444444444445) internal successors, (98), 18 states have internal predecessors, (98), 4 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (12), 4 states have call predecessors, (12), 4 states have call successors, (12) Word has length 149 [2023-11-29 04:00:49,479 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:00:49,481 INFO L225 Difference]: With dead ends: 2224 [2023-11-29 04:00:49,481 INFO L226 Difference]: Without dead ends: 2222 [2023-11-29 04:00:49,482 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 190 GetRequests, 150 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 242 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=212, Invalid=1510, Unknown=0, NotChecked=0, Total=1722 [2023-11-29 04:00:49,482 INFO L413 NwaCegarLoop]: 139 mSDtfsCounter, 819 mSDsluCounter, 1133 mSDsCounter, 0 mSdLazyCounter, 3224 mSolverCounterSat, 70 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 823 SdHoareTripleChecker+Valid, 1272 SdHoareTripleChecker+Invalid, 3294 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 70 IncrementalHoareTripleChecker+Valid, 3224 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.6s IncrementalHoareTripleChecker+Time [2023-11-29 04:00:49,482 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [823 Valid, 1272 Invalid, 3294 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [70 Valid, 3224 Invalid, 0 Unknown, 0 Unchecked, 5.6s Time] [2023-11-29 04:00:49,484 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2222 states. [2023-11-29 04:00:50,332 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2222 to 2041. [2023-11-29 04:00:50,334 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2041 states, 1751 states have (on average 1.3666476299257566) internal successors, (2393), 1794 states have internal predecessors, (2393), 244 states have call successors, (244), 2 states have call predecessors, (244), 2 states have return successors, (244), 244 states have call predecessors, (244), 244 states have call successors, (244) [2023-11-29 04:00:50,338 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2041 states to 2041 states and 2881 transitions. [2023-11-29 04:00:50,338 INFO L78 Accepts]: Start accepts. Automaton has 2041 states and 2881 transitions. Word has length 149 [2023-11-29 04:00:50,338 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:00:50,338 INFO L495 AbstractCegarLoop]: Abstraction has 2041 states and 2881 transitions. [2023-11-29 04:00:50,338 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 18 states have (on average 5.444444444444445) internal successors, (98), 18 states have internal predecessors, (98), 4 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (12), 4 states have call predecessors, (12), 4 states have call successors, (12) [2023-11-29 04:00:50,339 INFO L276 IsEmpty]: Start isEmpty. Operand 2041 states and 2881 transitions. [2023-11-29 04:00:50,339 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2023-11-29 04:00:50,339 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:00:50,340 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 04:00:50,344 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0345f207-eb94-43c0-b5d4-be7362f6a67e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (99)] Ended with exit code 0 [2023-11-29 04:00:50,540 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable97,99 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0345f207-eb94-43c0-b5d4-be7362f6a67e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:00:50,540 INFO L420 AbstractCegarLoop]: === Iteration 99 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2023-11-29 04:00:50,540 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:00:50,541 INFO L85 PathProgramCache]: Analyzing trace with hash -1959497559, now seen corresponding path program 2 times [2023-11-29 04:00:50,541 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:00:50,541 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1919301542] [2023-11-29 04:00:50,541 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:00:50,541 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:00:50,550 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 04:00:50,551 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1973986187] [2023-11-29 04:00:50,551 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-29 04:00:50,551 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:00:50,551 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0345f207-eb94-43c0-b5d4-be7362f6a67e/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:00:50,552 INFO L229 MonitoredProcess]: Starting monitored process 100 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0345f207-eb94-43c0-b5d4-be7362f6a67e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:00:50,553 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0345f207-eb94-43c0-b5d4-be7362f6a67e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (100)] Waiting until timeout for monitored process [2023-11-29 04:00:50,638 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-29 04:00:50,639 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 04:00:50,640 INFO L262 TraceCheckSpWp]: Trace formula consists of 289 conjuncts, 22 conjunts are in the unsatisfiable core [2023-11-29 04:00:50,643 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:00:51,147 INFO L134 CoverageAnalysis]: Checked inductivity of 193 backedges. 21 proven. 45 refuted. 0 times theorem prover too weak. 127 trivial. 0 not checked. [2023-11-29 04:00:51,148 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 04:00:51,743 INFO L134 CoverageAnalysis]: Checked inductivity of 193 backedges. 15 proven. 51 refuted. 0 times theorem prover too weak. 127 trivial. 0 not checked. [2023-11-29 04:00:51,743 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:00:51,743 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1919301542] [2023-11-29 04:00:51,743 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 04:00:51,743 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1973986187] [2023-11-29 04:00:51,743 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1973986187] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 04:00:51,743 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 04:00:51,744 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14] total 22 [2023-11-29 04:00:51,744 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [815372853] [2023-11-29 04:00:51,744 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 04:00:51,744 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2023-11-29 04:00:51,745 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:00:51,745 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2023-11-29 04:00:51,745 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=396, Unknown=0, NotChecked=0, Total=462 [2023-11-29 04:00:51,745 INFO L87 Difference]: Start difference. First operand 2041 states and 2881 transitions. Second operand has 22 states, 22 states have (on average 7.681818181818182) internal successors, (169), 20 states have internal predecessors, (169), 7 states have call successors, (22), 1 states have call predecessors, (22), 2 states have return successors, (23), 7 states have call predecessors, (23), 7 states have call successors, (23) [2023-11-29 04:00:54,165 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:00:54,165 INFO L93 Difference]: Finished difference Result 2393 states and 3276 transitions. [2023-11-29 04:00:54,166 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2023-11-29 04:00:54,166 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 7.681818181818182) internal successors, (169), 20 states have internal predecessors, (169), 7 states have call successors, (22), 1 states have call predecessors, (22), 2 states have return successors, (23), 7 states have call predecessors, (23), 7 states have call successors, (23) Word has length 149 [2023-11-29 04:00:54,166 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:00:54,168 INFO L225 Difference]: With dead ends: 2393 [2023-11-29 04:00:54,168 INFO L226 Difference]: Without dead ends: 1180 [2023-11-29 04:00:54,170 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 320 GetRequests, 275 SyntacticMatches, 1 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 353 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=432, Invalid=1638, Unknown=0, NotChecked=0, Total=2070 [2023-11-29 04:00:54,170 INFO L413 NwaCegarLoop]: 122 mSDtfsCounter, 971 mSDsluCounter, 1024 mSDsCounter, 0 mSdLazyCounter, 1465 mSolverCounterSat, 100 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 971 SdHoareTripleChecker+Valid, 1146 SdHoareTripleChecker+Invalid, 1565 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 100 IncrementalHoareTripleChecker+Valid, 1465 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2023-11-29 04:00:54,170 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [971 Valid, 1146 Invalid, 1565 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [100 Valid, 1465 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2023-11-29 04:00:54,171 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1180 states. [2023-11-29 04:00:54,549 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1180 to 988. [2023-11-29 04:00:54,550 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 988 states, 848 states have (on average 1.1851415094339623) internal successors, (1005), 873 states have internal predecessors, (1005), 112 states have call successors, (112), 2 states have call predecessors, (112), 2 states have return successors, (112), 112 states have call predecessors, (112), 112 states have call successors, (112) [2023-11-29 04:00:54,552 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 988 states to 988 states and 1229 transitions. [2023-11-29 04:00:54,552 INFO L78 Accepts]: Start accepts. Automaton has 988 states and 1229 transitions. Word has length 149 [2023-11-29 04:00:54,552 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:00:54,552 INFO L495 AbstractCegarLoop]: Abstraction has 988 states and 1229 transitions. [2023-11-29 04:00:54,552 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 7.681818181818182) internal successors, (169), 20 states have internal predecessors, (169), 7 states have call successors, (22), 1 states have call predecessors, (22), 2 states have return successors, (23), 7 states have call predecessors, (23), 7 states have call successors, (23) [2023-11-29 04:00:54,553 INFO L276 IsEmpty]: Start isEmpty. Operand 988 states and 1229 transitions. [2023-11-29 04:00:54,553 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2023-11-29 04:00:54,553 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:00:54,554 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 04:00:54,558 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0345f207-eb94-43c0-b5d4-be7362f6a67e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (100)] Ended with exit code 0 [2023-11-29 04:00:54,754 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 100 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0345f207-eb94-43c0-b5d4-be7362f6a67e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable98 [2023-11-29 04:00:54,754 INFO L420 AbstractCegarLoop]: === Iteration 100 === Targeting ULTIMATE.startErr40ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2023-11-29 04:00:54,754 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:00:54,754 INFO L85 PathProgramCache]: Analyzing trace with hash -570129076, now seen corresponding path program 2 times [2023-11-29 04:00:54,755 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:00:54,755 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [223893413] [2023-11-29 04:00:54,755 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:00:54,755 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:00:54,764 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 04:00:54,764 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [225903112] [2023-11-29 04:00:54,765 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-29 04:00:54,765 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:00:54,765 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0345f207-eb94-43c0-b5d4-be7362f6a67e/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:00:54,766 INFO L229 MonitoredProcess]: Starting monitored process 101 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0345f207-eb94-43c0-b5d4-be7362f6a67e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:00:54,767 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0345f207-eb94-43c0-b5d4-be7362f6a67e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (101)] Waiting until timeout for monitored process [2023-11-29 04:00:54,849 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-29 04:00:54,849 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 04:00:54,851 INFO L262 TraceCheckSpWp]: Trace formula consists of 283 conjuncts, 18 conjunts are in the unsatisfiable core [2023-11-29 04:00:54,853 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:00:55,771 INFO L134 CoverageAnalysis]: Checked inductivity of 183 backedges. 0 proven. 47 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2023-11-29 04:00:55,772 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 04:00:56,296 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:00:56,296 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [223893413] [2023-11-29 04:00:56,296 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 04:00:56,296 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [225903112] [2023-11-29 04:00:56,296 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [225903112] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 04:00:56,296 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 04:00:56,296 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2023-11-29 04:00:56,296 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [181880384] [2023-11-29 04:00:56,297 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 04:00:56,297 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-11-29 04:00:56,297 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:00:56,297 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-11-29 04:00:56,298 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=289, Unknown=0, NotChecked=0, Total=342 [2023-11-29 04:00:56,298 INFO L87 Difference]: Start difference. First operand 988 states and 1229 transitions. Second operand has 14 states, 13 states have (on average 7.384615384615385) internal successors, (96), 14 states have internal predecessors, (96), 3 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2023-11-29 04:00:58,609 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:00:58,609 INFO L93 Difference]: Finished difference Result 1041 states and 1252 transitions. [2023-11-29 04:00:58,610 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-11-29 04:00:58,610 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 7.384615384615385) internal successors, (96), 14 states have internal predecessors, (96), 3 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) Word has length 150 [2023-11-29 04:00:58,610 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:00:58,611 INFO L225 Difference]: With dead ends: 1041 [2023-11-29 04:00:58,611 INFO L226 Difference]: Without dead ends: 1040 [2023-11-29 04:00:58,612 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 184 GetRequests, 158 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 103 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=122, Invalid=634, Unknown=0, NotChecked=0, Total=756 [2023-11-29 04:00:58,612 INFO L413 NwaCegarLoop]: 133 mSDtfsCounter, 450 mSDsluCounter, 958 mSDsCounter, 0 mSdLazyCounter, 1372 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 454 SdHoareTripleChecker+Valid, 1091 SdHoareTripleChecker+Invalid, 1415 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 1372 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2023-11-29 04:00:58,612 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [454 Valid, 1091 Invalid, 1415 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 1372 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2023-11-29 04:00:58,613 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1040 states. [2023-11-29 04:00:59,020 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1040 to 990. [2023-11-29 04:00:59,020 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 990 states, 850 states have (on average 1.1858823529411764) internal successors, (1008), 875 states have internal predecessors, (1008), 112 states have call successors, (112), 2 states have call predecessors, (112), 2 states have return successors, (112), 112 states have call predecessors, (112), 112 states have call successors, (112) [2023-11-29 04:00:59,022 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 990 states to 990 states and 1232 transitions. [2023-11-29 04:00:59,022 INFO L78 Accepts]: Start accepts. Automaton has 990 states and 1232 transitions. Word has length 150 [2023-11-29 04:00:59,023 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:00:59,023 INFO L495 AbstractCegarLoop]: Abstraction has 990 states and 1232 transitions. [2023-11-29 04:00:59,023 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 7.384615384615385) internal successors, (96), 14 states have internal predecessors, (96), 3 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2023-11-29 04:00:59,023 INFO L276 IsEmpty]: Start isEmpty. Operand 990 states and 1232 transitions. [2023-11-29 04:00:59,024 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2023-11-29 04:00:59,024 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:00:59,024 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 04:00:59,029 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0345f207-eb94-43c0-b5d4-be7362f6a67e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (101)] Ended with exit code 0 [2023-11-29 04:00:59,224 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 101 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0345f207-eb94-43c0-b5d4-be7362f6a67e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable99 [2023-11-29 04:00:59,225 INFO L420 AbstractCegarLoop]: === Iteration 101 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2023-11-29 04:00:59,225 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:00:59,225 INFO L85 PathProgramCache]: Analyzing trace with hash -436068868, now seen corresponding path program 1 times [2023-11-29 04:00:59,225 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:00:59,225 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1052389734] [2023-11-29 04:00:59,225 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:00:59,226 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:00:59,235 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 04:00:59,235 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [615016674] [2023-11-29 04:00:59,235 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:00:59,235 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:00:59,235 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0345f207-eb94-43c0-b5d4-be7362f6a67e/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:00:59,236 INFO L229 MonitoredProcess]: Starting monitored process 102 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0345f207-eb94-43c0-b5d4-be7362f6a67e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:00:59,238 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0345f207-eb94-43c0-b5d4-be7362f6a67e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (102)] Waiting until timeout for monitored process [2023-11-29 04:00:59,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:00:59,317 INFO L262 TraceCheckSpWp]: Trace formula consists of 263 conjuncts, 16 conjunts are in the unsatisfiable core [2023-11-29 04:00:59,319 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:00:59,569 INFO L134 CoverageAnalysis]: Checked inductivity of 318 backedges. 176 proven. 6 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2023-11-29 04:00:59,569 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 04:00:59,823 INFO L134 CoverageAnalysis]: Checked inductivity of 318 backedges. 54 proven. 32 refuted. 0 times theorem prover too weak. 232 trivial. 0 not checked. [2023-11-29 04:00:59,823 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:00:59,823 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1052389734] [2023-11-29 04:00:59,823 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 04:00:59,823 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [615016674] [2023-11-29 04:00:59,823 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [615016674] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 04:00:59,823 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 04:00:59,824 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 17 [2023-11-29 04:00:59,824 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2055488604] [2023-11-29 04:00:59,824 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 04:00:59,824 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2023-11-29 04:00:59,824 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:00:59,825 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2023-11-29 04:00:59,825 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=229, Unknown=0, NotChecked=0, Total=272 [2023-11-29 04:00:59,825 INFO L87 Difference]: Start difference. First operand 990 states and 1232 transitions. Second operand has 17 states, 17 states have (on average 8.588235294117647) internal successors, (146), 15 states have internal predecessors, (146), 8 states have call successors, (29), 2 states have call predecessors, (29), 3 states have return successors, (30), 9 states have call predecessors, (30), 8 states have call successors, (30) [2023-11-29 04:01:00,928 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:01:00,928 INFO L93 Difference]: Finished difference Result 1011 states and 1244 transitions. [2023-11-29 04:01:00,928 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-29 04:01:00,929 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 8.588235294117647) internal successors, (146), 15 states have internal predecessors, (146), 8 states have call successors, (29), 2 states have call predecessors, (29), 3 states have return successors, (30), 9 states have call predecessors, (30), 8 states have call successors, (30) Word has length 153 [2023-11-29 04:01:00,929 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:01:00,930 INFO L225 Difference]: With dead ends: 1011 [2023-11-29 04:01:00,930 INFO L226 Difference]: Without dead ends: 815 [2023-11-29 04:01:00,931 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 310 GetRequests, 289 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 53 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=106, Invalid=400, Unknown=0, NotChecked=0, Total=506 [2023-11-29 04:01:00,932 INFO L413 NwaCegarLoop]: 55 mSDtfsCounter, 236 mSDsluCounter, 416 mSDsCounter, 0 mSdLazyCounter, 700 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 240 SdHoareTripleChecker+Valid, 471 SdHoareTripleChecker+Invalid, 721 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 700 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-11-29 04:01:00,932 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [240 Valid, 471 Invalid, 721 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 700 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-11-29 04:01:00,932 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 815 states. [2023-11-29 04:01:01,284 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 815 to 815. [2023-11-29 04:01:01,285 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 815 states, 696 states have (on average 1.206896551724138) internal successors, (840), 720 states have internal predecessors, (840), 92 states have call successors, (92), 2 states have call predecessors, (92), 2 states have return successors, (92), 92 states have call predecessors, (92), 92 states have call successors, (92) [2023-11-29 04:01:01,287 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 815 states to 815 states and 1024 transitions. [2023-11-29 04:01:01,287 INFO L78 Accepts]: Start accepts. Automaton has 815 states and 1024 transitions. Word has length 153 [2023-11-29 04:01:01,287 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:01:01,287 INFO L495 AbstractCegarLoop]: Abstraction has 815 states and 1024 transitions. [2023-11-29 04:01:01,287 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 8.588235294117647) internal successors, (146), 15 states have internal predecessors, (146), 8 states have call successors, (29), 2 states have call predecessors, (29), 3 states have return successors, (30), 9 states have call predecessors, (30), 8 states have call successors, (30) [2023-11-29 04:01:01,287 INFO L276 IsEmpty]: Start isEmpty. Operand 815 states and 1024 transitions. [2023-11-29 04:01:01,288 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2023-11-29 04:01:01,288 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:01:01,288 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 04:01:01,293 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0345f207-eb94-43c0-b5d4-be7362f6a67e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (102)] Ended with exit code 0 [2023-11-29 04:01:01,488 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 102 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0345f207-eb94-43c0-b5d4-be7362f6a67e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable100 [2023-11-29 04:01:01,489 INFO L420 AbstractCegarLoop]: === Iteration 102 === Targeting ULTIMATE.startErr41ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2023-11-29 04:01:01,489 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:01:01,489 INFO L85 PathProgramCache]: Analyzing trace with hash -494131994, now seen corresponding path program 1 times [2023-11-29 04:01:01,489 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:01:01,489 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1550296315] [2023-11-29 04:01:01,489 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:01:01,489 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:01:01,497 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 04:01:01,498 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1244458041] [2023-11-29 04:01:01,498 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:01:01,498 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:01:01,498 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0345f207-eb94-43c0-b5d4-be7362f6a67e/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:01:01,499 INFO L229 MonitoredProcess]: Starting monitored process 103 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0345f207-eb94-43c0-b5d4-be7362f6a67e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:01:01,499 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0345f207-eb94-43c0-b5d4-be7362f6a67e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (103)] Waiting until timeout for monitored process [2023-11-29 04:01:01,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:01:01,588 INFO L262 TraceCheckSpWp]: Trace formula consists of 284 conjuncts, 43 conjunts are in the unsatisfiable core [2023-11-29 04:01:01,590 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:01:03,197 INFO L134 CoverageAnalysis]: Checked inductivity of 183 backedges. 3 proven. 53 refuted. 0 times theorem prover too weak. 127 trivial. 0 not checked. [2023-11-29 04:01:03,197 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 04:01:04,118 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:01:04,118 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1550296315] [2023-11-29 04:01:04,118 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 04:01:04,118 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1244458041] [2023-11-29 04:01:04,118 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1244458041] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 04:01:04,118 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 04:01:04,119 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18] total 18 [2023-11-29 04:01:04,119 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1255161503] [2023-11-29 04:01:04,119 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 04:01:04,119 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2023-11-29 04:01:04,119 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:01:04,120 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2023-11-29 04:01:04,120 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=83, Invalid=567, Unknown=0, NotChecked=0, Total=650 [2023-11-29 04:01:04,120 INFO L87 Difference]: Start difference. First operand 815 states and 1024 transitions. Second operand has 19 states, 18 states have (on average 5.555555555555555) internal successors, (100), 18 states have internal predecessors, (100), 4 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (12), 4 states have call predecessors, (12), 4 states have call successors, (12) [2023-11-29 04:01:07,177 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:01:07,177 INFO L93 Difference]: Finished difference Result 850 states and 1044 transitions. [2023-11-29 04:01:07,178 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2023-11-29 04:01:07,178 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 18 states have (on average 5.555555555555555) internal successors, (100), 18 states have internal predecessors, (100), 4 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (12), 4 states have call predecessors, (12), 4 states have call successors, (12) Word has length 151 [2023-11-29 04:01:07,178 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:01:07,179 INFO L225 Difference]: With dead ends: 850 [2023-11-29 04:01:07,179 INFO L226 Difference]: Without dead ends: 848 [2023-11-29 04:01:07,180 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 193 GetRequests, 153 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 242 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=218, Invalid=1504, Unknown=0, NotChecked=0, Total=1722 [2023-11-29 04:01:07,180 INFO L413 NwaCegarLoop]: 72 mSDtfsCounter, 537 mSDsluCounter, 687 mSDsCounter, 0 mSdLazyCounter, 2256 mSolverCounterSat, 51 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 537 SdHoareTripleChecker+Valid, 759 SdHoareTripleChecker+Invalid, 2307 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 2256 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2023-11-29 04:01:07,180 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [537 Valid, 759 Invalid, 2307 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [51 Valid, 2256 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2023-11-29 04:01:07,181 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 848 states. [2023-11-29 04:01:07,539 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 848 to 817. [2023-11-29 04:01:07,540 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 817 states, 698 states have (on average 1.1991404011461317) internal successors, (837), 722 states have internal predecessors, (837), 92 states have call successors, (92), 2 states have call predecessors, (92), 2 states have return successors, (92), 92 states have call predecessors, (92), 92 states have call successors, (92) [2023-11-29 04:01:07,541 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 817 states to 817 states and 1021 transitions. [2023-11-29 04:01:07,541 INFO L78 Accepts]: Start accepts. Automaton has 817 states and 1021 transitions. Word has length 151 [2023-11-29 04:01:07,542 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:01:07,542 INFO L495 AbstractCegarLoop]: Abstraction has 817 states and 1021 transitions. [2023-11-29 04:01:07,542 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 18 states have (on average 5.555555555555555) internal successors, (100), 18 states have internal predecessors, (100), 4 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (12), 4 states have call predecessors, (12), 4 states have call successors, (12) [2023-11-29 04:01:07,542 INFO L276 IsEmpty]: Start isEmpty. Operand 817 states and 1021 transitions. [2023-11-29 04:01:07,543 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2023-11-29 04:01:07,543 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:01:07,543 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 04:01:07,548 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0345f207-eb94-43c0-b5d4-be7362f6a67e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (103)] Ended with exit code 0 [2023-11-29 04:01:07,743 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 103 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0345f207-eb94-43c0-b5d4-be7362f6a67e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable101 [2023-11-29 04:01:07,743 INFO L420 AbstractCegarLoop]: === Iteration 103 === Targeting ULTIMATE.startErr42ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2023-11-29 04:01:07,744 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:01:07,744 INFO L85 PathProgramCache]: Analyzing trace with hash 1861777550, now seen corresponding path program 2 times [2023-11-29 04:01:07,744 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:01:07,744 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [761963232] [2023-11-29 04:01:07,744 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:01:07,744 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:01:07,753 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 04:01:07,754 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1342096471] [2023-11-29 04:01:07,754 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-29 04:01:07,754 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:01:07,754 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0345f207-eb94-43c0-b5d4-be7362f6a67e/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:01:07,755 INFO L229 MonitoredProcess]: Starting monitored process 104 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0345f207-eb94-43c0-b5d4-be7362f6a67e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:01:07,756 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0345f207-eb94-43c0-b5d4-be7362f6a67e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (104)] Waiting until timeout for monitored process [2023-11-29 04:01:07,840 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-29 04:01:07,840 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 04:01:07,842 INFO L262 TraceCheckSpWp]: Trace formula consists of 285 conjuncts, 21 conjunts are in the unsatisfiable core [2023-11-29 04:01:07,845 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:01:09,207 INFO L134 CoverageAnalysis]: Checked inductivity of 183 backedges. 3 proven. 53 refuted. 0 times theorem prover too weak. 127 trivial. 0 not checked. [2023-11-29 04:01:09,207 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 04:01:09,473 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:01:09,474 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [761963232] [2023-11-29 04:01:09,474 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 04:01:09,474 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1342096471] [2023-11-29 04:01:09,474 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1342096471] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 04:01:09,474 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 04:01:09,474 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16] total 16 [2023-11-29 04:01:09,474 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1104903474] [2023-11-29 04:01:09,474 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 04:01:09,475 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2023-11-29 04:01:09,475 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:01:09,475 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2023-11-29 04:01:09,476 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=83, Invalid=337, Unknown=0, NotChecked=0, Total=420 [2023-11-29 04:01:09,476 INFO L87 Difference]: Start difference. First operand 817 states and 1021 transitions. Second operand has 17 states, 16 states have (on average 6.3125) internal successors, (101), 16 states have internal predecessors, (101), 4 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (12), 4 states have call predecessors, (12), 4 states have call successors, (12) [2023-11-29 04:01:11,838 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:01:11,838 INFO L93 Difference]: Finished difference Result 862 states and 1040 transitions. [2023-11-29 04:01:11,839 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2023-11-29 04:01:11,839 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 6.3125) internal successors, (101), 16 states have internal predecessors, (101), 4 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (12), 4 states have call predecessors, (12), 4 states have call successors, (12) Word has length 152 [2023-11-29 04:01:11,839 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:01:11,840 INFO L225 Difference]: With dead ends: 862 [2023-11-29 04:01:11,840 INFO L226 Difference]: Without dead ends: 861 [2023-11-29 04:01:11,840 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 189 GetRequests, 160 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 176 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=175, Invalid=755, Unknown=0, NotChecked=0, Total=930 [2023-11-29 04:01:11,840 INFO L413 NwaCegarLoop]: 95 mSDtfsCounter, 555 mSDsluCounter, 751 mSDsCounter, 0 mSdLazyCounter, 1490 mSolverCounterSat, 48 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 559 SdHoareTripleChecker+Valid, 846 SdHoareTripleChecker+Invalid, 1538 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 48 IncrementalHoareTripleChecker+Valid, 1490 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2023-11-29 04:01:11,841 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [559 Valid, 846 Invalid, 1538 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [48 Valid, 1490 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2023-11-29 04:01:11,841 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 861 states. [2023-11-29 04:01:12,125 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 861 to 819. [2023-11-29 04:01:12,125 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 819 states, 700 states have (on average 1.2) internal successors, (840), 724 states have internal predecessors, (840), 92 states have call successors, (92), 2 states have call predecessors, (92), 2 states have return successors, (92), 92 states have call predecessors, (92), 92 states have call successors, (92) [2023-11-29 04:01:12,126 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 819 states to 819 states and 1024 transitions. [2023-11-29 04:01:12,126 INFO L78 Accepts]: Start accepts. Automaton has 819 states and 1024 transitions. Word has length 152 [2023-11-29 04:01:12,127 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:01:12,127 INFO L495 AbstractCegarLoop]: Abstraction has 819 states and 1024 transitions. [2023-11-29 04:01:12,127 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 6.3125) internal successors, (101), 16 states have internal predecessors, (101), 4 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (12), 4 states have call predecessors, (12), 4 states have call successors, (12) [2023-11-29 04:01:12,127 INFO L276 IsEmpty]: Start isEmpty. Operand 819 states and 1024 transitions. [2023-11-29 04:01:12,127 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2023-11-29 04:01:12,127 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:01:12,128 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 04:01:12,132 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0345f207-eb94-43c0-b5d4-be7362f6a67e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (104)] Ended with exit code 0 [2023-11-29 04:01:12,328 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 104 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0345f207-eb94-43c0-b5d4-be7362f6a67e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable102 [2023-11-29 04:01:12,328 INFO L420 AbstractCegarLoop]: === Iteration 104 === Targeting ULTIMATE.startErr43ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2023-11-29 04:01:12,328 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:01:12,328 INFO L85 PathProgramCache]: Analyzing trace with hash 1880529384, now seen corresponding path program 2 times [2023-11-29 04:01:12,328 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:01:12,328 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [199765997] [2023-11-29 04:01:12,329 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:01:12,329 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:01:12,336 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 04:01:12,336 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [586965889] [2023-11-29 04:01:12,336 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-29 04:01:12,336 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:01:12,336 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0345f207-eb94-43c0-b5d4-be7362f6a67e/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:01:12,337 INFO L229 MonitoredProcess]: Starting monitored process 105 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0345f207-eb94-43c0-b5d4-be7362f6a67e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:01:12,338 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0345f207-eb94-43c0-b5d4-be7362f6a67e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (105)] Waiting until timeout for monitored process [2023-11-29 04:01:12,396 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-29 04:01:12,396 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 04:01:12,397 INFO L262 TraceCheckSpWp]: Trace formula consists of 286 conjuncts, 21 conjunts are in the unsatisfiable core [2023-11-29 04:01:12,399 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:01:13,602 INFO L134 CoverageAnalysis]: Checked inductivity of 183 backedges. 3 proven. 53 refuted. 0 times theorem prover too weak. 127 trivial. 0 not checked. [2023-11-29 04:01:13,602 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 04:01:13,862 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:01:13,863 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [199765997] [2023-11-29 04:01:13,863 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 04:01:13,863 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [586965889] [2023-11-29 04:01:13,863 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [586965889] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 04:01:13,863 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 04:01:13,863 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16] total 16 [2023-11-29 04:01:13,863 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [244551373] [2023-11-29 04:01:13,863 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 04:01:13,864 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2023-11-29 04:01:13,864 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:01:13,864 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2023-11-29 04:01:13,864 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=83, Invalid=337, Unknown=0, NotChecked=0, Total=420 [2023-11-29 04:01:13,864 INFO L87 Difference]: Start difference. First operand 819 states and 1024 transitions. Second operand has 17 states, 16 states have (on average 6.375) internal successors, (102), 16 states have internal predecessors, (102), 4 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (12), 4 states have call predecessors, (12), 4 states have call successors, (12) [2023-11-29 04:01:15,811 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:01:15,811 INFO L93 Difference]: Finished difference Result 861 states and 1039 transitions. [2023-11-29 04:01:15,812 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2023-11-29 04:01:15,812 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 6.375) internal successors, (102), 16 states have internal predecessors, (102), 4 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (12), 4 states have call predecessors, (12), 4 states have call successors, (12) Word has length 153 [2023-11-29 04:01:15,812 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:01:15,813 INFO L225 Difference]: With dead ends: 861 [2023-11-29 04:01:15,814 INFO L226 Difference]: Without dead ends: 860 [2023-11-29 04:01:15,814 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 191 GetRequests, 162 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 176 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=175, Invalid=755, Unknown=0, NotChecked=0, Total=930 [2023-11-29 04:01:15,814 INFO L413 NwaCegarLoop]: 95 mSDtfsCounter, 436 mSDsluCounter, 741 mSDsCounter, 0 mSdLazyCounter, 1293 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 440 SdHoareTripleChecker+Valid, 836 SdHoareTripleChecker+Invalid, 1329 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 1293 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2023-11-29 04:01:15,814 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [440 Valid, 836 Invalid, 1329 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 1293 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2023-11-29 04:01:15,815 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 860 states. [2023-11-29 04:01:16,173 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 860 to 820. [2023-11-29 04:01:16,174 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 820 states, 701 states have (on average 1.1997146932952925) internal successors, (841), 725 states have internal predecessors, (841), 92 states have call successors, (92), 2 states have call predecessors, (92), 2 states have return successors, (92), 92 states have call predecessors, (92), 92 states have call successors, (92) [2023-11-29 04:01:16,175 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 820 states to 820 states and 1025 transitions. [2023-11-29 04:01:16,175 INFO L78 Accepts]: Start accepts. Automaton has 820 states and 1025 transitions. Word has length 153 [2023-11-29 04:01:16,175 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:01:16,176 INFO L495 AbstractCegarLoop]: Abstraction has 820 states and 1025 transitions. [2023-11-29 04:01:16,176 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 6.375) internal successors, (102), 16 states have internal predecessors, (102), 4 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (12), 4 states have call predecessors, (12), 4 states have call successors, (12) [2023-11-29 04:01:16,176 INFO L276 IsEmpty]: Start isEmpty. Operand 820 states and 1025 transitions. [2023-11-29 04:01:16,176 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2023-11-29 04:01:16,176 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:01:16,176 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 04:01:16,181 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0345f207-eb94-43c0-b5d4-be7362f6a67e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (105)] Forceful destruction successful, exit code 0 [2023-11-29 04:01:16,377 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 105 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0345f207-eb94-43c0-b5d4-be7362f6a67e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable103 [2023-11-29 04:01:16,377 INFO L420 AbstractCegarLoop]: === Iteration 105 === Targeting ULTIMATE.startErr44ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2023-11-29 04:01:16,377 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:01:16,377 INFO L85 PathProgramCache]: Analyzing trace with hash -1833131056, now seen corresponding path program 2 times [2023-11-29 04:01:16,377 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:01:16,377 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2001716427] [2023-11-29 04:01:16,377 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:01:16,378 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:01:16,386 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 04:01:16,387 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1193062962] [2023-11-29 04:01:16,387 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-29 04:01:16,387 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:01:16,387 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0345f207-eb94-43c0-b5d4-be7362f6a67e/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:01:16,388 INFO L229 MonitoredProcess]: Starting monitored process 106 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0345f207-eb94-43c0-b5d4-be7362f6a67e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:01:16,389 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0345f207-eb94-43c0-b5d4-be7362f6a67e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (106)] Waiting until timeout for monitored process [2023-11-29 04:01:16,466 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-29 04:01:16,466 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 04:01:16,468 INFO L262 TraceCheckSpWp]: Trace formula consists of 287 conjuncts, 24 conjunts are in the unsatisfiable core [2023-11-29 04:01:16,470 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:01:20,386 INFO L134 CoverageAnalysis]: Checked inductivity of 183 backedges. 15 proven. 53 refuted. 0 times theorem prover too weak. 115 trivial. 0 not checked. [2023-11-29 04:01:20,387 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 04:01:21,845 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:01:21,845 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2001716427] [2023-11-29 04:01:21,845 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 04:01:21,845 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1193062962] [2023-11-29 04:01:21,845 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1193062962] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 04:01:21,845 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 04:01:21,845 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16] total 16 [2023-11-29 04:01:21,845 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [968030468] [2023-11-29 04:01:21,845 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 04:01:21,846 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2023-11-29 04:01:21,846 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:01:21,846 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2023-11-29 04:01:21,846 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=442, Unknown=0, NotChecked=0, Total=506 [2023-11-29 04:01:21,847 INFO L87 Difference]: Start difference. First operand 820 states and 1025 transitions. Second operand has 17 states, 16 states have (on average 6.4375) internal successors, (103), 17 states have internal predecessors, (103), 4 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (12), 4 states have call predecessors, (12), 4 states have call successors, (12) [2023-11-29 04:01:33,823 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.51s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-29 04:01:38,817 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:01:38,817 INFO L93 Difference]: Finished difference Result 854 states and 1040 transitions. [2023-11-29 04:01:38,818 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2023-11-29 04:01:38,818 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 6.4375) internal successors, (103), 17 states have internal predecessors, (103), 4 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (12), 4 states have call predecessors, (12), 4 states have call successors, (12) Word has length 154 [2023-11-29 04:01:38,818 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:01:38,819 INFO L225 Difference]: With dead ends: 854 [2023-11-29 04:01:38,819 INFO L226 Difference]: Without dead ends: 853 [2023-11-29 04:01:38,819 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 198 GetRequests, 162 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 229 ImplicationChecksByTransitivity, 6.7s TimeCoverageRelationStatistics Valid=174, Invalid=1232, Unknown=0, NotChecked=0, Total=1406 [2023-11-29 04:01:38,820 INFO L413 NwaCegarLoop]: 75 mSDtfsCounter, 408 mSDsluCounter, 838 mSDsCounter, 0 mSdLazyCounter, 1949 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 412 SdHoareTripleChecker+Valid, 913 SdHoareTripleChecker+Invalid, 1983 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 1949 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.0s IncrementalHoareTripleChecker+Time [2023-11-29 04:01:38,820 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [412 Valid, 913 Invalid, 1983 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 1949 Invalid, 0 Unknown, 0 Unchecked, 13.0s Time] [2023-11-29 04:01:38,820 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 853 states. [2023-11-29 04:01:39,132 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 853 to 821. [2023-11-29 04:01:39,132 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 821 states, 702 states have (on average 1.1994301994301995) internal successors, (842), 726 states have internal predecessors, (842), 92 states have call successors, (92), 2 states have call predecessors, (92), 2 states have return successors, (92), 92 states have call predecessors, (92), 92 states have call successors, (92) [2023-11-29 04:01:39,134 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 821 states to 821 states and 1026 transitions. [2023-11-29 04:01:39,134 INFO L78 Accepts]: Start accepts. Automaton has 821 states and 1026 transitions. Word has length 154 [2023-11-29 04:01:39,134 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:01:39,134 INFO L495 AbstractCegarLoop]: Abstraction has 821 states and 1026 transitions. [2023-11-29 04:01:39,134 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 6.4375) internal successors, (103), 17 states have internal predecessors, (103), 4 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (12), 4 states have call predecessors, (12), 4 states have call successors, (12) [2023-11-29 04:01:39,134 INFO L276 IsEmpty]: Start isEmpty. Operand 821 states and 1026 transitions. [2023-11-29 04:01:39,135 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2023-11-29 04:01:39,135 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:01:39,135 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 04:01:39,139 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0345f207-eb94-43c0-b5d4-be7362f6a67e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (106)] Ended with exit code 0 [2023-11-29 04:01:39,335 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 106 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0345f207-eb94-43c0-b5d4-be7362f6a67e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable104 [2023-11-29 04:01:39,335 INFO L420 AbstractCegarLoop]: === Iteration 106 === Targeting ULTIMATE.startErr45ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2023-11-29 04:01:39,336 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:01:39,336 INFO L85 PathProgramCache]: Analyzing trace with hash -992487702, now seen corresponding path program 2 times [2023-11-29 04:01:39,336 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:01:39,336 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1856986130] [2023-11-29 04:01:39,336 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:01:39,336 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:01:39,345 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 04:01:39,345 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [661388481] [2023-11-29 04:01:39,345 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-29 04:01:39,345 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:01:39,345 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0345f207-eb94-43c0-b5d4-be7362f6a67e/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:01:39,346 INFO L229 MonitoredProcess]: Starting monitored process 107 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0345f207-eb94-43c0-b5d4-be7362f6a67e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:01:39,347 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0345f207-eb94-43c0-b5d4-be7362f6a67e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (107)] Waiting until timeout for monitored process [2023-11-29 04:01:39,408 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-29 04:01:39,408 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 04:01:39,409 INFO L262 TraceCheckSpWp]: Trace formula consists of 288 conjuncts, 21 conjunts are in the unsatisfiable core [2023-11-29 04:01:39,411 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:01:39,814 INFO L134 CoverageAnalysis]: Checked inductivity of 183 backedges. 12 proven. 48 refuted. 0 times theorem prover too weak. 123 trivial. 0 not checked. [2023-11-29 04:01:39,814 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 04:01:40,095 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:01:40,095 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1856986130] [2023-11-29 04:01:40,096 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 04:01:40,096 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [661388481] [2023-11-29 04:01:40,096 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [661388481] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 04:01:40,096 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 04:01:40,096 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2023-11-29 04:01:40,096 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [682396365] [2023-11-29 04:01:40,096 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 04:01:40,096 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-29 04:01:40,096 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:01:40,097 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-29 04:01:40,097 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=169, Unknown=0, NotChecked=0, Total=210 [2023-11-29 04:01:40,097 INFO L87 Difference]: Start difference. First operand 821 states and 1026 transitions. Second operand has 12 states, 11 states have (on average 8.818181818181818) internal successors, (97), 12 states have internal predecessors, (97), 3 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2023-11-29 04:01:40,962 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:01:40,962 INFO L93 Difference]: Finished difference Result 821 states and 1026 transitions. [2023-11-29 04:01:40,963 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-11-29 04:01:40,963 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 8.818181818181818) internal successors, (97), 12 states have internal predecessors, (97), 3 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) Word has length 155 [2023-11-29 04:01:40,963 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:01:40,964 INFO L225 Difference]: With dead ends: 821 [2023-11-29 04:01:40,964 INFO L226 Difference]: Without dead ends: 818 [2023-11-29 04:01:40,965 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 188 GetRequests, 172 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=58, Invalid=248, Unknown=0, NotChecked=0, Total=306 [2023-11-29 04:01:40,965 INFO L413 NwaCegarLoop]: 64 mSDtfsCounter, 50 mSDsluCounter, 269 mSDsCounter, 0 mSdLazyCounter, 468 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 50 SdHoareTripleChecker+Valid, 333 SdHoareTripleChecker+Invalid, 472 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 468 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-29 04:01:40,965 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [50 Valid, 333 Invalid, 472 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 468 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-29 04:01:40,966 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 818 states. [2023-11-29 04:01:41,317 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 818 to 818. [2023-11-29 04:01:41,318 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 818 states, 702 states have (on average 1.1951566951566952) internal successors, (839), 723 states have internal predecessors, (839), 92 states have call successors, (92), 2 states have call predecessors, (92), 2 states have return successors, (92), 92 states have call predecessors, (92), 92 states have call successors, (92) [2023-11-29 04:01:41,319 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 818 states to 818 states and 1023 transitions. [2023-11-29 04:01:41,319 INFO L78 Accepts]: Start accepts. Automaton has 818 states and 1023 transitions. Word has length 155 [2023-11-29 04:01:41,319 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:01:41,319 INFO L495 AbstractCegarLoop]: Abstraction has 818 states and 1023 transitions. [2023-11-29 04:01:41,319 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 8.818181818181818) internal successors, (97), 12 states have internal predecessors, (97), 3 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2023-11-29 04:01:41,319 INFO L276 IsEmpty]: Start isEmpty. Operand 818 states and 1023 transitions. [2023-11-29 04:01:41,320 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2023-11-29 04:01:41,320 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:01:41,320 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 04:01:41,324 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0345f207-eb94-43c0-b5d4-be7362f6a67e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (107)] Forceful destruction successful, exit code 0 [2023-11-29 04:01:41,520 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 107 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0345f207-eb94-43c0-b5d4-be7362f6a67e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable105 [2023-11-29 04:01:41,520 INFO L420 AbstractCegarLoop]: === Iteration 107 === Targeting ULTIMATE.startErr46ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2023-11-29 04:01:41,521 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:01:41,521 INFO L85 PathProgramCache]: Analyzing trace with hash -702347502, now seen corresponding path program 2 times [2023-11-29 04:01:41,521 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:01:41,521 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [597821754] [2023-11-29 04:01:41,521 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:01:41,521 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:01:41,527 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 04:01:41,528 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [581775615] [2023-11-29 04:01:41,528 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-29 04:01:41,528 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:01:41,528 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0345f207-eb94-43c0-b5d4-be7362f6a67e/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:01:41,529 INFO L229 MonitoredProcess]: Starting monitored process 108 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0345f207-eb94-43c0-b5d4-be7362f6a67e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:01:41,530 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0345f207-eb94-43c0-b5d4-be7362f6a67e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (108)] Waiting until timeout for monitored process [2023-11-29 04:01:41,598 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-29 04:01:41,599 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 04:01:41,600 INFO L262 TraceCheckSpWp]: Trace formula consists of 289 conjuncts, 30 conjunts are in the unsatisfiable core [2023-11-29 04:01:41,602 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:01:43,299 INFO L134 CoverageAnalysis]: Checked inductivity of 183 backedges. 3 proven. 53 refuted. 0 times theorem prover too weak. 127 trivial. 0 not checked. [2023-11-29 04:01:43,299 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 04:01:59,785 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:01:59,785 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [597821754] [2023-11-29 04:01:59,786 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 04:01:59,786 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [581775615] [2023-11-29 04:01:59,786 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [581775615] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 04:01:59,786 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 04:01:59,786 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17] total 17 [2023-11-29 04:01:59,786 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1002362050] [2023-11-29 04:01:59,786 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 04:01:59,786 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2023-11-29 04:01:59,787 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:01:59,787 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2023-11-29 04:01:59,787 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=97, Invalid=405, Unknown=4, NotChecked=0, Total=506 [2023-11-29 04:01:59,787 INFO L87 Difference]: Start difference. First operand 818 states and 1023 transitions. Second operand has 18 states, 17 states have (on average 6.176470588235294) internal successors, (105), 17 states have internal predecessors, (105), 4 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (12), 4 states have call predecessors, (12), 4 states have call successors, (12) [2023-11-29 04:02:01,523 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:02:01,524 INFO L93 Difference]: Finished difference Result 855 states and 1033 transitions. [2023-11-29 04:02:01,524 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2023-11-29 04:02:01,524 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 17 states have (on average 6.176470588235294) internal successors, (105), 17 states have internal predecessors, (105), 4 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (12), 4 states have call predecessors, (12), 4 states have call successors, (12) Word has length 156 [2023-11-29 04:02:01,525 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:02:01,526 INFO L225 Difference]: With dead ends: 855 [2023-11-29 04:02:01,526 INFO L226 Difference]: Without dead ends: 854 [2023-11-29 04:02:01,526 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 194 GetRequests, 166 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 162 ImplicationChecksByTransitivity, 16.7s TimeCoverageRelationStatistics Valid=168, Invalid=698, Unknown=4, NotChecked=0, Total=870 [2023-11-29 04:02:01,526 INFO L413 NwaCegarLoop]: 94 mSDtfsCounter, 400 mSDsluCounter, 824 mSDsCounter, 0 mSdLazyCounter, 1314 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 404 SdHoareTripleChecker+Valid, 918 SdHoareTripleChecker+Invalid, 1348 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 1314 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2023-11-29 04:02:01,526 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [404 Valid, 918 Invalid, 1348 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 1314 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2023-11-29 04:02:01,527 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 854 states. [2023-11-29 04:02:01,884 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 854 to 820. [2023-11-29 04:02:01,885 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 820 states, 704 states have (on average 1.1946022727272727) internal successors, (841), 725 states have internal predecessors, (841), 92 states have call successors, (92), 2 states have call predecessors, (92), 2 states have return successors, (92), 92 states have call predecessors, (92), 92 states have call successors, (92) [2023-11-29 04:02:01,886 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 820 states to 820 states and 1025 transitions. [2023-11-29 04:02:01,886 INFO L78 Accepts]: Start accepts. Automaton has 820 states and 1025 transitions. Word has length 156 [2023-11-29 04:02:01,886 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:02:01,886 INFO L495 AbstractCegarLoop]: Abstraction has 820 states and 1025 transitions. [2023-11-29 04:02:01,887 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 17 states have (on average 6.176470588235294) internal successors, (105), 17 states have internal predecessors, (105), 4 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (12), 4 states have call predecessors, (12), 4 states have call successors, (12) [2023-11-29 04:02:01,887 INFO L276 IsEmpty]: Start isEmpty. Operand 820 states and 1025 transitions. [2023-11-29 04:02:01,887 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2023-11-29 04:02:01,887 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:02:01,887 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 04:02:01,893 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0345f207-eb94-43c0-b5d4-be7362f6a67e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (108)] Forceful destruction successful, exit code 0 [2023-11-29 04:02:02,088 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 108 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0345f207-eb94-43c0-b5d4-be7362f6a67e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable106 [2023-11-29 04:02:02,088 INFO L420 AbstractCegarLoop]: === Iteration 108 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2023-11-29 04:02:02,088 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:02:02,088 INFO L85 PathProgramCache]: Analyzing trace with hash -1787191976, now seen corresponding path program 1 times [2023-11-29 04:02:02,088 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:02:02,088 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1245004397] [2023-11-29 04:02:02,088 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:02:02,088 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:02:02,095 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 04:02:02,095 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1551627765] [2023-11-29 04:02:02,095 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:02:02,095 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:02:02,095 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0345f207-eb94-43c0-b5d4-be7362f6a67e/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:02:02,096 INFO L229 MonitoredProcess]: Starting monitored process 109 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0345f207-eb94-43c0-b5d4-be7362f6a67e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:02:02,097 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0345f207-eb94-43c0-b5d4-be7362f6a67e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (109)] Waiting until timeout for monitored process [2023-11-29 04:02:02,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:02:02,158 INFO L262 TraceCheckSpWp]: Trace formula consists of 287 conjuncts, 13 conjunts are in the unsatisfiable core [2023-11-29 04:02:02,160 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:02:02,401 INFO L134 CoverageAnalysis]: Checked inductivity of 270 backedges. 101 proven. 38 refuted. 0 times theorem prover too weak. 131 trivial. 0 not checked. [2023-11-29 04:02:02,401 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 04:02:02,755 INFO L134 CoverageAnalysis]: Checked inductivity of 270 backedges. 35 proven. 40 refuted. 0 times theorem prover too weak. 195 trivial. 0 not checked. [2023-11-29 04:02:02,756 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:02:02,756 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1245004397] [2023-11-29 04:02:02,756 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 04:02:02,756 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1551627765] [2023-11-29 04:02:02,756 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1551627765] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 04:02:02,756 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 04:02:02,756 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12] total 19 [2023-11-29 04:02:02,756 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1506072791] [2023-11-29 04:02:02,756 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 04:02:02,757 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2023-11-29 04:02:02,757 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:02:02,757 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2023-11-29 04:02:02,757 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=283, Unknown=0, NotChecked=0, Total=342 [2023-11-29 04:02:02,757 INFO L87 Difference]: Start difference. First operand 820 states and 1025 transitions. Second operand has 19 states, 19 states have (on average 8.421052631578947) internal successors, (160), 17 states have internal predecessors, (160), 8 states have call successors, (26), 2 states have call predecessors, (26), 3 states have return successors, (27), 8 states have call predecessors, (27), 8 states have call successors, (27) [2023-11-29 04:02:03,579 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:02:03,579 INFO L93 Difference]: Finished difference Result 876 states and 1076 transitions. [2023-11-29 04:02:03,580 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-11-29 04:02:03,580 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 8.421052631578947) internal successors, (160), 17 states have internal predecessors, (160), 8 states have call successors, (26), 2 states have call predecessors, (26), 3 states have return successors, (27), 8 states have call predecessors, (27), 8 states have call successors, (27) Word has length 158 [2023-11-29 04:02:03,580 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:02:03,580 INFO L225 Difference]: With dead ends: 876 [2023-11-29 04:02:03,580 INFO L226 Difference]: Without dead ends: 261 [2023-11-29 04:02:03,581 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 325 GetRequests, 296 SyntacticMatches, 1 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 99 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=192, Invalid=678, Unknown=0, NotChecked=0, Total=870 [2023-11-29 04:02:03,581 INFO L413 NwaCegarLoop]: 69 mSDtfsCounter, 326 mSDsluCounter, 524 mSDsCounter, 0 mSdLazyCounter, 653 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 326 SdHoareTripleChecker+Valid, 593 SdHoareTripleChecker+Invalid, 685 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 653 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-11-29 04:02:03,581 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [326 Valid, 593 Invalid, 685 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 653 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-11-29 04:02:03,582 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 261 states. [2023-11-29 04:02:03,665 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 261 to 255. [2023-11-29 04:02:03,665 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 255 states, 213 states have (on average 1.1173708920187793) internal successors, (238), 228 states have internal predecessors, (238), 24 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2023-11-29 04:02:03,665 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 255 states to 255 states and 286 transitions. [2023-11-29 04:02:03,665 INFO L78 Accepts]: Start accepts. Automaton has 255 states and 286 transitions. Word has length 158 [2023-11-29 04:02:03,665 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:02:03,666 INFO L495 AbstractCegarLoop]: Abstraction has 255 states and 286 transitions. [2023-11-29 04:02:03,666 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 8.421052631578947) internal successors, (160), 17 states have internal predecessors, (160), 8 states have call successors, (26), 2 states have call predecessors, (26), 3 states have return successors, (27), 8 states have call predecessors, (27), 8 states have call successors, (27) [2023-11-29 04:02:03,666 INFO L276 IsEmpty]: Start isEmpty. Operand 255 states and 286 transitions. [2023-11-29 04:02:03,666 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2023-11-29 04:02:03,666 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:02:03,666 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 04:02:03,672 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0345f207-eb94-43c0-b5d4-be7362f6a67e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (109)] Forceful destruction successful, exit code 0 [2023-11-29 04:02:03,867 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 109 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0345f207-eb94-43c0-b5d4-be7362f6a67e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable107 [2023-11-29 04:02:03,867 INFO L420 AbstractCegarLoop]: === Iteration 109 === Targeting ULTIMATE.startErr47ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2023-11-29 04:02:03,867 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:02:03,867 INFO L85 PathProgramCache]: Analyzing trace with hash -297935892, now seen corresponding path program 2 times [2023-11-29 04:02:03,867 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:02:03,868 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [378547031] [2023-11-29 04:02:03,868 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:02:03,868 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:02:03,876 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 04:02:03,876 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [6168383] [2023-11-29 04:02:03,876 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-29 04:02:03,876 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:02:03,876 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0345f207-eb94-43c0-b5d4-be7362f6a67e/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:02:03,877 INFO L229 MonitoredProcess]: Starting monitored process 110 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0345f207-eb94-43c0-b5d4-be7362f6a67e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:02:03,878 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0345f207-eb94-43c0-b5d4-be7362f6a67e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (110)] Waiting until timeout for monitored process [2023-11-29 04:02:03,969 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-29 04:02:03,969 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 04:02:03,971 INFO L262 TraceCheckSpWp]: Trace formula consists of 290 conjuncts, 28 conjunts are in the unsatisfiable core [2023-11-29 04:02:03,973 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:02:06,234 INFO L134 CoverageAnalysis]: Checked inductivity of 183 backedges. 3 proven. 53 refuted. 0 times theorem prover too weak. 127 trivial. 0 not checked. [2023-11-29 04:02:06,235 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 04:02:06,799 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:02:06,799 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [378547031] [2023-11-29 04:02:06,799 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 04:02:06,799 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [6168383] [2023-11-29 04:02:06,799 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [6168383] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 04:02:06,799 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 04:02:06,800 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19] total 19 [2023-11-29 04:02:06,800 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [197486530] [2023-11-29 04:02:06,800 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 04:02:06,800 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2023-11-29 04:02:06,800 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:02:06,800 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2023-11-29 04:02:06,801 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=106, Invalid=544, Unknown=0, NotChecked=0, Total=650 [2023-11-29 04:02:06,801 INFO L87 Difference]: Start difference. First operand 255 states and 286 transitions. Second operand has 20 states, 19 states have (on average 5.578947368421052) internal successors, (106), 19 states have internal predecessors, (106), 4 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (12), 4 states have call predecessors, (12), 4 states have call successors, (12) [2023-11-29 04:02:08,688 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:02:08,688 INFO L93 Difference]: Finished difference Result 261 states and 291 transitions. [2023-11-29 04:02:08,689 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2023-11-29 04:02:08,689 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 19 states have (on average 5.578947368421052) internal successors, (106), 19 states have internal predecessors, (106), 4 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (12), 4 states have call predecessors, (12), 4 states have call successors, (12) Word has length 157 [2023-11-29 04:02:08,689 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:02:08,690 INFO L225 Difference]: With dead ends: 261 [2023-11-29 04:02:08,690 INFO L226 Difference]: Without dead ends: 260 [2023-11-29 04:02:08,690 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 198 GetRequests, 165 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 246 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=192, Invalid=998, Unknown=0, NotChecked=0, Total=1190 [2023-11-29 04:02:08,690 INFO L413 NwaCegarLoop]: 58 mSDtfsCounter, 225 mSDsluCounter, 471 mSDsCounter, 0 mSdLazyCounter, 1298 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 225 SdHoareTripleChecker+Valid, 529 SdHoareTripleChecker+Invalid, 1320 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 1298 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2023-11-29 04:02:08,690 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [225 Valid, 529 Invalid, 1320 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 1298 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2023-11-29 04:02:08,691 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 260 states. [2023-11-29 04:02:08,795 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 260 to 256. [2023-11-29 04:02:08,795 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 256 states, 214 states have (on average 1.1168224299065421) internal successors, (239), 229 states have internal predecessors, (239), 24 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2023-11-29 04:02:08,795 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 256 states to 256 states and 287 transitions. [2023-11-29 04:02:08,796 INFO L78 Accepts]: Start accepts. Automaton has 256 states and 287 transitions. Word has length 157 [2023-11-29 04:02:08,796 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:02:08,796 INFO L495 AbstractCegarLoop]: Abstraction has 256 states and 287 transitions. [2023-11-29 04:02:08,796 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 19 states have (on average 5.578947368421052) internal successors, (106), 19 states have internal predecessors, (106), 4 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (12), 4 states have call predecessors, (12), 4 states have call successors, (12) [2023-11-29 04:02:08,796 INFO L276 IsEmpty]: Start isEmpty. Operand 256 states and 287 transitions. [2023-11-29 04:02:08,796 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2023-11-29 04:02:08,796 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:02:08,797 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 04:02:08,802 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0345f207-eb94-43c0-b5d4-be7362f6a67e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (110)] Ended with exit code 0 [2023-11-29 04:02:08,997 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable108,110 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0345f207-eb94-43c0-b5d4-be7362f6a67e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:02:08,997 INFO L420 AbstractCegarLoop]: === Iteration 110 === Targeting ULTIMATE.startErr48ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2023-11-29 04:02:08,997 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:02:08,997 INFO L85 PathProgramCache]: Analyzing trace with hash -646077868, now seen corresponding path program 2 times [2023-11-29 04:02:08,997 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:02:08,998 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1332741003] [2023-11-29 04:02:08,998 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:02:08,998 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:02:09,006 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 04:02:09,006 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [833707629] [2023-11-29 04:02:09,006 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-29 04:02:09,006 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:02:09,006 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0345f207-eb94-43c0-b5d4-be7362f6a67e/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:02:09,007 INFO L229 MonitoredProcess]: Starting monitored process 111 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0345f207-eb94-43c0-b5d4-be7362f6a67e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:02:09,008 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0345f207-eb94-43c0-b5d4-be7362f6a67e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (111)] Waiting until timeout for monitored process [2023-11-29 04:02:09,088 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-29 04:02:09,088 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 04:02:09,091 INFO L262 TraceCheckSpWp]: Trace formula consists of 291 conjuncts, 71 conjunts are in the unsatisfiable core [2023-11-29 04:02:09,093 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:02:11,667 INFO L134 CoverageAnalysis]: Checked inductivity of 183 backedges. 12 proven. 56 refuted. 0 times theorem prover too weak. 115 trivial. 0 not checked. [2023-11-29 04:02:11,667 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 04:02:19,514 WARN L876 $PredicateComparison]: unable to prove that (let ((.cse4 (* |c_ULTIMATE.start_main_~x~0#1| |c_ULTIMATE.start_main_~p~0#1|))) (let ((.cse0 (+ .cse4 (* |c_ULTIMATE.start_main_~y~0#1| |c_ULTIMATE.start_main_~r~0#1|))) (.cse1 (* |c_ULTIMATE.start_main_~x~0#1| |c_ULTIMATE.start_main_~d~0#1| |c_ULTIMATE.start_main_~q~0#1|)) (.cse2 (* |c_ULTIMATE.start_main_~x~0#1| |c_ULTIMATE.start_main_~q~0#1|)) (.cse3 (* |c_ULTIMATE.start_main_~x~0#1| |c_ULTIMATE.start_main_~k~0#1| |c_ULTIMATE.start_main_~q~0#1|))) (or (< .cse0 (+ .cse1 (* |c_ULTIMATE.start_main_~y~0#1| |c_ULTIMATE.start_main_~s~0#1|) .cse2 9223372036854775809 (* |c_ULTIMATE.start_main_~y~0#1| |c_ULTIMATE.start_main_~d~0#1| |c_ULTIMATE.start_main_~s~0#1|) .cse3 (* |c_ULTIMATE.start_main_~y~0#1| |c_ULTIMATE.start_main_~s~0#1| |c_ULTIMATE.start_main_~k~0#1|))) (not (= .cse0 |c_ULTIMATE.start_main_~a~0#1|)) (< (+ .cse1 .cse2 9223372036854775808 .cse3) .cse4) (not (= |c_ULTIMATE.start_main_~c~0#1| (* 2 |c_ULTIMATE.start_main_~v~0#1|)))))) is different from true [2023-11-29 04:03:35,501 INFO L134 CoverageAnalysis]: Checked inductivity of 183 backedges. 12 proven. 56 refuted. 0 times theorem prover too weak. 115 trivial. 0 not checked. [2023-11-29 04:03:35,502 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:03:35,502 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1332741003] [2023-11-29 04:03:35,502 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 04:03:35,502 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [833707629] [2023-11-29 04:03:35,502 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [833707629] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 04:03:35,502 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 04:03:35,503 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 20] total 38 [2023-11-29 04:03:35,503 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1315024627] [2023-11-29 04:03:35,503 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 04:03:35,503 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 39 states [2023-11-29 04:03:35,503 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:03:35,504 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 39 interpolants. [2023-11-29 04:03:35,505 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=165, Invalid=1244, Unknown=1, NotChecked=72, Total=1482 [2023-11-29 04:03:35,505 INFO L87 Difference]: Start difference. First operand 256 states and 287 transitions. Second operand has 39 states, 38 states have (on average 5.394736842105263) internal successors, (205), 39 states have internal predecessors, (205), 7 states have call successors, (20), 1 states have call predecessors, (20), 2 states have return successors, (20), 5 states have call predecessors, (20), 7 states have call successors, (20) [2023-11-29 04:03:42,518 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.54s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-29 04:04:02,401 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.49s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-29 04:04:29,681 WARN L293 SmtUtils]: Spent 10.02s on a formula simplification. DAG size of input: 103 DAG size of output: 65 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-11-29 04:04:45,696 WARN L293 SmtUtils]: Spent 9.69s on a formula simplification. DAG size of input: 103 DAG size of output: 66 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-11-29 04:04:52,845 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.15s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers []