./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/ps2-ll_unwindbound10.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_633b88e6-0ddb-42d2-b4d6-cfaa78431fa8/bin/uautomizer-verify-BQ2R08f2Ya/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_633b88e6-0ddb-42d2-b4d6-cfaa78431fa8/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_633b88e6-0ddb-42d2-b4d6-cfaa78431fa8/bin/uautomizer-verify-BQ2R08f2Ya/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_633b88e6-0ddb-42d2-b4d6-cfaa78431fa8/bin/uautomizer-verify-BQ2R08f2Ya/config/AutomizerReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/ps2-ll_unwindbound10.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_633b88e6-0ddb-42d2-b4d6-cfaa78431fa8/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_633b88e6-0ddb-42d2-b4d6-cfaa78431fa8/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 111e613944cc7c4f40e73d8912198083d9e385bb8d4d44cecdc5062eedc235a0 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-29 04:54:46,122 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-29 04:54:46,188 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_633b88e6-0ddb-42d2-b4d6-cfaa78431fa8/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-Overflow-32bit-Automizer_Default.epf [2023-11-29 04:54:46,192 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-29 04:54:46,193 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-29 04:54:46,216 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-29 04:54:46,217 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-29 04:54:46,217 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-29 04:54:46,218 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-29 04:54:46,219 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-29 04:54:46,219 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-29 04:54:46,220 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-29 04:54:46,220 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-29 04:54:46,221 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-29 04:54:46,221 INFO L153 SettingsManager]: * Use SBE=true [2023-11-29 04:54:46,222 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-29 04:54:46,222 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-29 04:54:46,223 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-29 04:54:46,223 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-29 04:54:46,224 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-29 04:54:46,224 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-29 04:54:46,225 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-29 04:54:46,225 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-29 04:54:46,226 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-29 04:54:46,226 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-29 04:54:46,227 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-29 04:54:46,227 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-29 04:54:46,228 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-29 04:54:46,228 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-29 04:54:46,229 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-29 04:54:46,229 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-29 04:54:46,230 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-29 04:54:46,230 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-29 04:54:46,231 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 04:54:46,231 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-29 04:54:46,231 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-29 04:54:46,232 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-29 04:54:46,232 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-29 04:54:46,232 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-29 04:54:46,232 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-29 04:54:46,233 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-29 04:54:46,233 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-29 04:54:46,233 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-29 04:54:46,233 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-29 04:54:46,233 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_633b88e6-0ddb-42d2-b4d6-cfaa78431fa8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_633b88e6-0ddb-42d2-b4d6-cfaa78431fa8/bin/uautomizer-verify-BQ2R08f2Ya Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 111e613944cc7c4f40e73d8912198083d9e385bb8d4d44cecdc5062eedc235a0 [2023-11-29 04:54:46,462 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-29 04:54:46,483 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-29 04:54:46,485 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-29 04:54:46,486 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-29 04:54:46,487 INFO L274 PluginConnector]: CDTParser initialized [2023-11-29 04:54:46,488 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_633b88e6-0ddb-42d2-b4d6-cfaa78431fa8/bin/uautomizer-verify-BQ2R08f2Ya/../../sv-benchmarks/c/nla-digbench-scaling/ps2-ll_unwindbound10.c [2023-11-29 04:54:49,213 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-29 04:54:49,360 INFO L384 CDTParser]: Found 1 translation units. [2023-11-29 04:54:49,360 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_633b88e6-0ddb-42d2-b4d6-cfaa78431fa8/sv-benchmarks/c/nla-digbench-scaling/ps2-ll_unwindbound10.c [2023-11-29 04:54:49,365 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_633b88e6-0ddb-42d2-b4d6-cfaa78431fa8/bin/uautomizer-verify-BQ2R08f2Ya/data/6d464642e/04edda73e96e4643ab78562e8196e0bb/FLAG16e586f21 [2023-11-29 04:54:49,377 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_633b88e6-0ddb-42d2-b4d6-cfaa78431fa8/bin/uautomizer-verify-BQ2R08f2Ya/data/6d464642e/04edda73e96e4643ab78562e8196e0bb [2023-11-29 04:54:49,379 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-29 04:54:49,380 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-29 04:54:49,381 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-29 04:54:49,382 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-29 04:54:49,386 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-29 04:54:49,386 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 04:54:49" (1/1) ... [2023-11-29 04:54:49,387 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@72517206 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:54:49, skipping insertion in model container [2023-11-29 04:54:49,388 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 04:54:49" (1/1) ... [2023-11-29 04:54:49,407 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-29 04:54:49,552 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 04:54:49,562 INFO L202 MainTranslator]: Completed pre-run [2023-11-29 04:54:49,580 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 04:54:49,595 INFO L206 MainTranslator]: Completed translation [2023-11-29 04:54:49,595 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:54:49 WrapperNode [2023-11-29 04:54:49,596 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-29 04:54:49,597 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-29 04:54:49,597 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-29 04:54:49,597 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-29 04:54:49,605 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:54:49" (1/1) ... [2023-11-29 04:54:49,611 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:54:49" (1/1) ... [2023-11-29 04:54:49,631 INFO L138 Inliner]: procedures = 14, calls = 10, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 68 [2023-11-29 04:54:49,632 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-29 04:54:49,633 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-29 04:54:49,633 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-29 04:54:49,633 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-29 04:54:49,644 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:54:49" (1/1) ... [2023-11-29 04:54:49,645 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:54:49" (1/1) ... [2023-11-29 04:54:49,646 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:54:49" (1/1) ... [2023-11-29 04:54:49,657 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 04:54:49,657 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:54:49" (1/1) ... [2023-11-29 04:54:49,658 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:54:49" (1/1) ... [2023-11-29 04:54:49,661 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:54:49" (1/1) ... [2023-11-29 04:54:49,664 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:54:49" (1/1) ... [2023-11-29 04:54:49,665 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:54:49" (1/1) ... [2023-11-29 04:54:49,666 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:54:49" (1/1) ... [2023-11-29 04:54:49,668 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-29 04:54:49,669 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-29 04:54:49,669 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-29 04:54:49,669 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-29 04:54:49,670 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:54:49" (1/1) ... [2023-11-29 04:54:49,676 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 04:54:49,687 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_633b88e6-0ddb-42d2-b4d6-cfaa78431fa8/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:54:49,699 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_633b88e6-0ddb-42d2-b4d6-cfaa78431fa8/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-29 04:54:49,706 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_633b88e6-0ddb-42d2-b4d6-cfaa78431fa8/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-29 04:54:49,730 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-29 04:54:49,730 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-11-29 04:54:49,730 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-29 04:54:49,730 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-29 04:54:49,730 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-11-29 04:54:49,730 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-11-29 04:54:49,785 INFO L241 CfgBuilder]: Building ICFG [2023-11-29 04:54:49,786 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-29 04:54:49,998 INFO L282 CfgBuilder]: Performing block encoding [2023-11-29 04:54:50,023 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-29 04:54:50,023 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-29 04:54:50,024 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 04:54:50 BoogieIcfgContainer [2023-11-29 04:54:50,024 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-29 04:54:50,027 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-29 04:54:50,027 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-29 04:54:50,030 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-29 04:54:50,031 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.11 04:54:49" (1/3) ... [2023-11-29 04:54:50,031 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5d50c7e5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 04:54:50, skipping insertion in model container [2023-11-29 04:54:50,032 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:54:49" (2/3) ... [2023-11-29 04:54:50,032 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5d50c7e5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 04:54:50, skipping insertion in model container [2023-11-29 04:54:50,032 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 04:54:50" (3/3) ... [2023-11-29 04:54:50,034 INFO L112 eAbstractionObserver]: Analyzing ICFG ps2-ll_unwindbound10.c [2023-11-29 04:54:50,053 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-29 04:54:50,054 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 24 error locations. [2023-11-29 04:54:50,099 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-29 04:54:50,104 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;@3606295d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-29 04:54:50,105 INFO L358 AbstractCegarLoop]: Starting to check reachability of 24 error locations. [2023-11-29 04:54:50,108 INFO L276 IsEmpty]: Start isEmpty. Operand has 60 states, 32 states have (on average 1.875) internal successors, (60), 56 states have internal predecessors, (60), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-29 04:54:50,113 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2023-11-29 04:54:50,113 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:54:50,114 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1] [2023-11-29 04:54:50,114 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2023-11-29 04:54:50,120 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:54:50,120 INFO L85 PathProgramCache]: Analyzing trace with hash 119869, now seen corresponding path program 1 times [2023-11-29 04:54:50,129 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:54:50,129 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [382217489] [2023-11-29 04:54:50,130 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:54:50,130 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:54:50,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:54:50,246 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 04:54:50,246 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:54:50,247 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [382217489] [2023-11-29 04:54:50,247 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [382217489] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 04:54:50,247 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 04:54:50,248 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 04:54:50,249 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1867723480] [2023-11-29 04:54:50,250 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 04:54:50,253 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-29 04:54:50,254 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:54:50,281 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-29 04:54:50,282 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-29 04:54:50,284 INFO L87 Difference]: Start difference. First operand has 60 states, 32 states have (on average 1.875) internal successors, (60), 56 states have internal predecessors, (60), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Second operand has 2 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:54:50,313 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:54:50,313 INFO L93 Difference]: Finished difference Result 117 states and 129 transitions. [2023-11-29 04:54:50,315 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-29 04:54:50,316 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 3 [2023-11-29 04:54:50,316 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:54:50,322 INFO L225 Difference]: With dead ends: 117 [2023-11-29 04:54:50,322 INFO L226 Difference]: Without dead ends: 55 [2023-11-29 04:54:50,325 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 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 04:54:50,328 INFO L413 NwaCegarLoop]: 58 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, 58 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 04:54:50,329 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 58 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 04:54:50,343 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states. [2023-11-29 04:54:50,358 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 55. [2023-11-29 04:54:50,359 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55 states, 31 states have (on average 1.7419354838709677) internal successors, (54), 52 states have internal predecessors, (54), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-29 04:54:50,361 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 56 transitions. [2023-11-29 04:54:50,362 INFO L78 Accepts]: Start accepts. Automaton has 55 states and 56 transitions. Word has length 3 [2023-11-29 04:54:50,362 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:54:50,362 INFO L495 AbstractCegarLoop]: Abstraction has 55 states and 56 transitions. [2023-11-29 04:54:50,362 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:54:50,363 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 56 transitions. [2023-11-29 04:54:50,363 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2023-11-29 04:54:50,363 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:54:50,363 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1] [2023-11-29 04:54:50,364 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-29 04:54:50,364 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2023-11-29 04:54:50,365 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:54:50,365 INFO L85 PathProgramCache]: Analyzing trace with hash 118428, now seen corresponding path program 1 times [2023-11-29 04:54:50,365 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:54:50,365 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1034683226] [2023-11-29 04:54:50,366 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:54:50,366 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:54:50,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:54:50,446 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 04:54:50,447 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:54:50,447 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1034683226] [2023-11-29 04:54:50,447 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1034683226] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 04:54:50,448 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 04:54:50,448 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 04:54:50,448 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1723398408] [2023-11-29 04:54:50,448 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 04:54:50,449 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 04:54:50,450 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:54:50,450 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 04:54:50,451 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-29 04:54:50,451 INFO L87 Difference]: Start difference. First operand 55 states and 56 transitions. Second operand has 4 states, 3 states have (on average 1.0) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:54:50,505 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:54:50,505 INFO L93 Difference]: Finished difference Result 76 states and 77 transitions. [2023-11-29 04:54:50,506 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-29 04:54:50,506 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 1.0) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 3 [2023-11-29 04:54:50,506 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:54:50,508 INFO L225 Difference]: With dead ends: 76 [2023-11-29 04:54:50,508 INFO L226 Difference]: Without dead ends: 59 [2023-11-29 04:54:50,508 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 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 04:54:50,510 INFO L413 NwaCegarLoop]: 51 mSDtfsCounter, 4 mSDsluCounter, 100 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 151 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 04:54:50,511 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 151 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 04:54:50,512 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59 states. [2023-11-29 04:54:50,518 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59 to 59. [2023-11-29 04:54:50,519 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 59 states, 35 states have (on average 1.6571428571428573) internal successors, (58), 56 states have internal predecessors, (58), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-29 04:54:50,520 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 60 transitions. [2023-11-29 04:54:50,521 INFO L78 Accepts]: Start accepts. Automaton has 59 states and 60 transitions. Word has length 3 [2023-11-29 04:54:50,521 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:54:50,521 INFO L495 AbstractCegarLoop]: Abstraction has 59 states and 60 transitions. [2023-11-29 04:54:50,522 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 1.0) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:54:50,522 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 60 transitions. [2023-11-29 04:54:50,522 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-11-29 04:54:50,522 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:54:50,523 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-11-29 04:54:50,523 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-29 04:54:50,523 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2023-11-29 04:54:50,524 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:54:50,524 INFO L85 PathProgramCache]: Analyzing trace with hash 1997829763, now seen corresponding path program 1 times [2023-11-29 04:54:50,524 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:54:50,525 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [322015535] [2023-11-29 04:54:50,525 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:54:50,525 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:54:50,538 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 04:54:50,539 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2031476486] [2023-11-29 04:54:50,539 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:54:50,539 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:54:50,540 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_633b88e6-0ddb-42d2-b4d6-cfaa78431fa8/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:54:50,545 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_633b88e6-0ddb-42d2-b4d6-cfaa78431fa8/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:54:50,553 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_633b88e6-0ddb-42d2-b4d6-cfaa78431fa8/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-29 04:54:50,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:54:50,602 INFO L262 TraceCheckSpWp]: Trace formula consists of 40 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-29 04:54:50,606 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:54:50,626 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 04:54:50,627 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 04:54:50,627 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:54:50,627 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [322015535] [2023-11-29 04:54:50,627 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 04:54:50,628 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2031476486] [2023-11-29 04:54:50,628 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2031476486] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 04:54:50,628 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 04:54:50,628 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-29 04:54:50,629 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [826758160] [2023-11-29 04:54:50,629 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 04:54:50,629 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 04:54:50,629 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:54:50,630 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 04:54:50,630 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 04:54:50,631 INFO L87 Difference]: Start difference. First operand 59 states and 60 transitions. Second operand has 3 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:54:50,761 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:54:50,761 INFO L93 Difference]: Finished difference Result 99 states and 101 transitions. [2023-11-29 04:54:50,762 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 04:54:50,762 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2023-11-29 04:54:50,763 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:54:50,764 INFO L225 Difference]: With dead ends: 99 [2023-11-29 04:54:50,764 INFO L226 Difference]: Without dead ends: 95 [2023-11-29 04:54:50,765 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 5 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 04:54:50,766 INFO L413 NwaCegarLoop]: 34 mSDtfsCounter, 33 mSDsluCounter, 26 mSDsCounter, 0 mSdLazyCounter, 51 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 60 SdHoareTripleChecker+Invalid, 54 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 51 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 04:54:50,767 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [34 Valid, 60 Invalid, 54 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 51 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 04:54:50,768 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 95 states. [2023-11-29 04:54:50,774 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 95 to 75. [2023-11-29 04:54:50,775 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 75 states, 50 states have (on average 1.64) internal successors, (82), 71 states have internal predecessors, (82), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-29 04:54:50,776 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 75 states and 86 transitions. [2023-11-29 04:54:50,777 INFO L78 Accepts]: Start accepts. Automaton has 75 states and 86 transitions. Word has length 7 [2023-11-29 04:54:50,777 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:54:50,777 INFO L495 AbstractCegarLoop]: Abstraction has 75 states and 86 transitions. [2023-11-29 04:54:50,777 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:54:50,777 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 86 transitions. [2023-11-29 04:54:50,778 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-11-29 04:54:50,778 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:54:50,778 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 04:54:50,785 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_633b88e6-0ddb-42d2-b4d6-cfaa78431fa8/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-29 04:54:50,980 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_633b88e6-0ddb-42d2-b4d6-cfaa78431fa8/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:54:50,981 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2023-11-29 04:54:50,981 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:54:50,981 INFO L85 PathProgramCache]: Analyzing trace with hash 1803180561, now seen corresponding path program 1 times [2023-11-29 04:54:50,982 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:54:50,982 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1207740249] [2023-11-29 04:54:50,982 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:54:50,982 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:54:50,991 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 04:54:50,991 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [94556958] [2023-11-29 04:54:50,991 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:54:50,992 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:54:50,992 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_633b88e6-0ddb-42d2-b4d6-cfaa78431fa8/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:54:50,993 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_633b88e6-0ddb-42d2-b4d6-cfaa78431fa8/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:54:50,996 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_633b88e6-0ddb-42d2-b4d6-cfaa78431fa8/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-29 04:54:51,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:54:51,041 INFO L262 TraceCheckSpWp]: Trace formula consists of 41 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-29 04:54:51,042 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:54:51,058 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 04:54:51,058 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 04:54:51,059 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:54:51,059 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1207740249] [2023-11-29 04:54:51,059 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 04:54:51,059 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [94556958] [2023-11-29 04:54:51,059 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [94556958] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 04:54:51,060 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 04:54:51,060 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-29 04:54:51,060 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [322106] [2023-11-29 04:54:51,060 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 04:54:51,061 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 04:54:51,061 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:54:51,061 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 04:54:51,062 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 04:54:51,062 INFO L87 Difference]: Start difference. First operand 75 states and 86 transitions. Second operand has 3 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:54:51,145 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:54:51,145 INFO L93 Difference]: Finished difference Result 93 states and 101 transitions. [2023-11-29 04:54:51,146 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 04:54:51,146 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2023-11-29 04:54:51,146 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:54:51,147 INFO L225 Difference]: With dead ends: 93 [2023-11-29 04:54:51,147 INFO L226 Difference]: Without dead ends: 91 [2023-11-29 04:54:51,148 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 6 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 04:54:51,149 INFO L413 NwaCegarLoop]: 30 mSDtfsCounter, 34 mSDsluCounter, 28 mSDsCounter, 0 mSdLazyCounter, 47 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 58 SdHoareTripleChecker+Invalid, 54 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 47 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 04:54:51,150 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [35 Valid, 58 Invalid, 54 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 47 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 04:54:51,151 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 91 states. [2023-11-29 04:54:51,157 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 91 to 76. [2023-11-29 04:54:51,157 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 76 states, 51 states have (on average 1.607843137254902) internal successors, (82), 72 states have internal predecessors, (82), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-29 04:54:51,158 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 76 states and 86 transitions. [2023-11-29 04:54:51,159 INFO L78 Accepts]: Start accepts. Automaton has 76 states and 86 transitions. Word has length 8 [2023-11-29 04:54:51,159 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:54:51,159 INFO L495 AbstractCegarLoop]: Abstraction has 76 states and 86 transitions. [2023-11-29 04:54:51,159 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:54:51,159 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 86 transitions. [2023-11-29 04:54:51,160 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2023-11-29 04:54:51,160 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:54:51,160 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 04:54:51,166 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_633b88e6-0ddb-42d2-b4d6-cfaa78431fa8/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-11-29 04:54:51,364 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_633b88e6-0ddb-42d2-b4d6-cfaa78431fa8/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:54:51,365 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2023-11-29 04:54:51,365 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:54:51,365 INFO L85 PathProgramCache]: Analyzing trace with hash 64022597, now seen corresponding path program 1 times [2023-11-29 04:54:51,366 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:54:51,366 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1111173778] [2023-11-29 04:54:51,366 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:54:51,366 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:54:51,375 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 04:54:51,375 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2087530190] [2023-11-29 04:54:51,375 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:54:51,376 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:54:51,376 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_633b88e6-0ddb-42d2-b4d6-cfaa78431fa8/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:54:51,377 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_633b88e6-0ddb-42d2-b4d6-cfaa78431fa8/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:54:51,378 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_633b88e6-0ddb-42d2-b4d6-cfaa78431fa8/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-29 04:54:51,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:54:51,417 INFO L262 TraceCheckSpWp]: Trace formula consists of 42 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-29 04:54:51,418 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:54:51,432 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 04:54:51,433 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 04:54:51,433 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:54:51,433 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1111173778] [2023-11-29 04:54:51,433 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 04:54:51,433 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2087530190] [2023-11-29 04:54:51,433 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2087530190] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 04:54:51,433 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 04:54:51,433 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-29 04:54:51,434 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1616099037] [2023-11-29 04:54:51,434 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 04:54:51,434 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 04:54:51,434 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:54:51,435 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 04:54:51,435 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 04:54:51,435 INFO L87 Difference]: Start difference. First operand 76 states and 86 transitions. Second operand has 3 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:54:51,518 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:54:51,518 INFO L93 Difference]: Finished difference Result 97 states and 99 transitions. [2023-11-29 04:54:51,519 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 04:54:51,519 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2023-11-29 04:54:51,519 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:54:51,520 INFO L225 Difference]: With dead ends: 97 [2023-11-29 04:54:51,520 INFO L226 Difference]: Without dead ends: 91 [2023-11-29 04:54:51,521 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 7 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 04:54:51,522 INFO L413 NwaCegarLoop]: 36 mSDtfsCounter, 27 mSDsluCounter, 28 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 64 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 04:54:51,522 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [28 Valid, 64 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 04:54:51,524 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 91 states. [2023-11-29 04:54:51,530 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 91 to 80. [2023-11-29 04:54:51,530 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 80 states, 55 states have (on average 1.5272727272727273) internal successors, (84), 76 states have internal predecessors, (84), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-29 04:54:51,531 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 88 transitions. [2023-11-29 04:54:51,532 INFO L78 Accepts]: Start accepts. Automaton has 80 states and 88 transitions. Word has length 9 [2023-11-29 04:54:51,532 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:54:51,532 INFO L495 AbstractCegarLoop]: Abstraction has 80 states and 88 transitions. [2023-11-29 04:54:51,532 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:54:51,532 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 88 transitions. [2023-11-29 04:54:51,533 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2023-11-29 04:54:51,533 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:54:51,533 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 04:54:51,538 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_633b88e6-0ddb-42d2-b4d6-cfaa78431fa8/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2023-11-29 04:54:51,733 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_633b88e6-0ddb-42d2-b4d6-cfaa78431fa8/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:54:51,734 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2023-11-29 04:54:51,734 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:54:51,734 INFO L85 PathProgramCache]: Analyzing trace with hash 1396175367, now seen corresponding path program 1 times [2023-11-29 04:54:51,735 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:54:51,735 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [947093211] [2023-11-29 04:54:51,735 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:54:51,735 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:54:51,741 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 04:54:51,741 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [462750855] [2023-11-29 04:54:51,742 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:54:51,742 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:54:51,742 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_633b88e6-0ddb-42d2-b4d6-cfaa78431fa8/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:54:51,743 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_633b88e6-0ddb-42d2-b4d6-cfaa78431fa8/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:54:51,744 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_633b88e6-0ddb-42d2-b4d6-cfaa78431fa8/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-11-29 04:54:51,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:54:51,778 INFO L262 TraceCheckSpWp]: Trace formula consists of 44 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-29 04:54:51,779 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:54:51,846 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 04:54:51,846 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 04:54:51,846 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:54:51,846 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [947093211] [2023-11-29 04:54:51,846 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 04:54:51,846 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [462750855] [2023-11-29 04:54:51,846 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [462750855] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 04:54:51,847 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 04:54:51,847 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 04:54:51,847 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1554477758] [2023-11-29 04:54:51,847 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 04:54:51,847 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 04:54:51,847 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:54:51,848 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 04:54:51,848 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-29 04:54:51,848 INFO L87 Difference]: Start difference. First operand 80 states and 88 transitions. Second operand has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:54:51,936 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:54:51,936 INFO L93 Difference]: Finished difference Result 91 states and 93 transitions. [2023-11-29 04:54:51,936 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 04:54:51,937 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2023-11-29 04:54:51,937 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:54:51,937 INFO L225 Difference]: With dead ends: 91 [2023-11-29 04:54:51,938 INFO L226 Difference]: Without dead ends: 79 [2023-11-29 04:54:51,938 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 8 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 04:54:51,939 INFO L413 NwaCegarLoop]: 34 mSDtfsCounter, 43 mSDsluCounter, 28 mSDsCounter, 0 mSdLazyCounter, 53 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 44 SdHoareTripleChecker+Valid, 62 SdHoareTripleChecker+Invalid, 64 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 53 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 04:54:51,939 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [44 Valid, 62 Invalid, 64 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 53 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 04:54:51,940 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79 states. [2023-11-29 04:54:51,945 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 79 to 73. [2023-11-29 04:54:51,946 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 73 states, 48 states have (on average 1.5208333333333333) internal successors, (73), 69 states have internal predecessors, (73), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-29 04:54:51,947 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 73 states and 77 transitions. [2023-11-29 04:54:51,947 INFO L78 Accepts]: Start accepts. Automaton has 73 states and 77 transitions. Word has length 11 [2023-11-29 04:54:51,947 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:54:51,947 INFO L495 AbstractCegarLoop]: Abstraction has 73 states and 77 transitions. [2023-11-29 04:54:51,947 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:54:51,947 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 77 transitions. [2023-11-29 04:54:51,948 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2023-11-29 04:54:51,948 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:54:51,948 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 04:54:51,953 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_633b88e6-0ddb-42d2-b4d6-cfaa78431fa8/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2023-11-29 04:54:52,149 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_633b88e6-0ddb-42d2-b4d6-cfaa78431fa8/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2023-11-29 04:54:52,149 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2023-11-29 04:54:52,150 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:54:52,150 INFO L85 PathProgramCache]: Analyzing trace with hash 1158687737, now seen corresponding path program 1 times [2023-11-29 04:54:52,150 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:54:52,150 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1660099263] [2023-11-29 04:54:52,150 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:54:52,150 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:54:52,159 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 04:54:52,159 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [937984243] [2023-11-29 04:54:52,160 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:54:52,160 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:54:52,160 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_633b88e6-0ddb-42d2-b4d6-cfaa78431fa8/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:54:52,161 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_633b88e6-0ddb-42d2-b4d6-cfaa78431fa8/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:54:52,162 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_633b88e6-0ddb-42d2-b4d6-cfaa78431fa8/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-11-29 04:54:52,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:54:52,199 INFO L262 TraceCheckSpWp]: Trace formula consists of 57 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-29 04:54:52,201 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:54:52,239 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 04:54:52,239 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 04:54:52,239 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:54:52,240 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1660099263] [2023-11-29 04:54:52,240 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 04:54:52,240 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [937984243] [2023-11-29 04:54:52,240 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [937984243] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 04:54:52,241 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 04:54:52,241 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 04:54:52,241 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [462321081] [2023-11-29 04:54:52,242 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 04:54:52,242 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 04:54:52,242 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:54:52,243 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 04:54:52,243 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 04:54:52,244 INFO L87 Difference]: Start difference. First operand 73 states and 77 transitions. Second operand has 3 states, 2 states have (on average 9.0) internal successors, (18), 3 states have internal predecessors, (18), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-29 04:54:52,255 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:54:52,255 INFO L93 Difference]: Finished difference Result 73 states and 77 transitions. [2023-11-29 04:54:52,255 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 04:54:52,256 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 9.0) internal successors, (18), 3 states have internal predecessors, (18), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 20 [2023-11-29 04:54:52,256 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:54:52,257 INFO L225 Difference]: With dead ends: 73 [2023-11-29 04:54:52,257 INFO L226 Difference]: Without dead ends: 72 [2023-11-29 04:54:52,257 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 18 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 04:54:52,258 INFO L413 NwaCegarLoop]: 49 mSDtfsCounter, 35 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 53 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 04:54:52,259 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [35 Valid, 53 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 04:54:52,259 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72 states. [2023-11-29 04:54:52,265 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72 to 72. [2023-11-29 04:54:52,265 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 72 states, 48 states have (on average 1.4791666666666667) internal successors, (71), 68 states have internal predecessors, (71), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-29 04:54:52,266 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 72 states and 75 transitions. [2023-11-29 04:54:52,266 INFO L78 Accepts]: Start accepts. Automaton has 72 states and 75 transitions. Word has length 20 [2023-11-29 04:54:52,268 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:54:52,268 INFO L495 AbstractCegarLoop]: Abstraction has 72 states and 75 transitions. [2023-11-29 04:54:52,268 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 9.0) internal successors, (18), 3 states have internal predecessors, (18), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-29 04:54:52,268 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 75 transitions. [2023-11-29 04:54:52,269 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2023-11-29 04:54:52,269 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:54:52,269 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 04:54:52,274 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_633b88e6-0ddb-42d2-b4d6-cfaa78431fa8/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2023-11-29 04:54:52,472 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_633b88e6-0ddb-42d2-b4d6-cfaa78431fa8/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:54:52,473 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2023-11-29 04:54:52,473 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:54:52,473 INFO L85 PathProgramCache]: Analyzing trace with hash 1559581551, now seen corresponding path program 1 times [2023-11-29 04:54:52,473 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:54:52,473 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2133008127] [2023-11-29 04:54:52,473 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:54:52,474 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:54:52,481 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 04:54:52,481 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1163411034] [2023-11-29 04:54:52,481 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:54:52,481 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:54:52,482 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_633b88e6-0ddb-42d2-b4d6-cfaa78431fa8/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:54:52,483 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_633b88e6-0ddb-42d2-b4d6-cfaa78431fa8/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:54:52,484 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_633b88e6-0ddb-42d2-b4d6-cfaa78431fa8/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-11-29 04:54:52,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:54:52,519 INFO L262 TraceCheckSpWp]: Trace formula consists of 58 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-29 04:54:52,520 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:54:52,547 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 04:54:52,547 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 04:54:52,548 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:54:52,548 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2133008127] [2023-11-29 04:54:52,548 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 04:54:52,548 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1163411034] [2023-11-29 04:54:52,548 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1163411034] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 04:54:52,548 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 04:54:52,548 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 04:54:52,549 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [794215414] [2023-11-29 04:54:52,549 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 04:54:52,549 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 04:54:52,549 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:54:52,550 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 04:54:52,550 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 04:54:52,550 INFO L87 Difference]: Start difference. First operand 72 states and 75 transitions. Second operand has 3 states, 2 states have (on average 9.5) internal successors, (19), 3 states have internal predecessors, (19), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-29 04:54:52,563 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:54:52,563 INFO L93 Difference]: Finished difference Result 73 states and 75 transitions. [2023-11-29 04:54:52,563 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 04:54:52,564 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 9.5) internal successors, (19), 3 states have internal predecessors, (19), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 21 [2023-11-29 04:54:52,564 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:54:52,565 INFO L225 Difference]: With dead ends: 73 [2023-11-29 04:54:52,565 INFO L226 Difference]: Without dead ends: 72 [2023-11-29 04:54:52,565 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 19 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 04:54:52,566 INFO L413 NwaCegarLoop]: 51 mSDtfsCounter, 0 mSDsluCounter, 49 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 100 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 04:54:52,566 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 100 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 04:54:52,567 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72 states. [2023-11-29 04:54:52,571 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72 to 72. [2023-11-29 04:54:52,572 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 72 states, 48 states have (on average 1.4583333333333333) internal successors, (70), 68 states have internal predecessors, (70), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-29 04:54:52,572 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 72 states and 74 transitions. [2023-11-29 04:54:52,573 INFO L78 Accepts]: Start accepts. Automaton has 72 states and 74 transitions. Word has length 21 [2023-11-29 04:54:52,573 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:54:52,573 INFO L495 AbstractCegarLoop]: Abstraction has 72 states and 74 transitions. [2023-11-29 04:54:52,573 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 9.5) internal successors, (19), 3 states have internal predecessors, (19), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-29 04:54:52,573 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 74 transitions. [2023-11-29 04:54:52,574 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2023-11-29 04:54:52,574 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:54:52,574 INFO L195 NwaCegarLoop]: trace histogram [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 04:54:52,579 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_633b88e6-0ddb-42d2-b4d6-cfaa78431fa8/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2023-11-29 04:54:52,779 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_633b88e6-0ddb-42d2-b4d6-cfaa78431fa8/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:54:52,780 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2023-11-29 04:54:52,780 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:54:52,780 INFO L85 PathProgramCache]: Analyzing trace with hash -1462148739, now seen corresponding path program 1 times [2023-11-29 04:54:52,780 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:54:52,780 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [322590573] [2023-11-29 04:54:52,781 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:54:52,781 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:54:52,788 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 04:54:52,789 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [57567204] [2023-11-29 04:54:52,789 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:54:52,789 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:54:52,789 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_633b88e6-0ddb-42d2-b4d6-cfaa78431fa8/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:54:52,790 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_633b88e6-0ddb-42d2-b4d6-cfaa78431fa8/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:54:52,791 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_633b88e6-0ddb-42d2-b4d6-cfaa78431fa8/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-11-29 04:54:52,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:54:52,830 INFO L262 TraceCheckSpWp]: Trace formula consists of 65 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-29 04:54:52,832 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:54:52,931 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 04:54:52,932 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 04:54:52,932 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:54:52,932 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [322590573] [2023-11-29 04:54:52,932 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 04:54:52,932 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [57567204] [2023-11-29 04:54:52,932 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [57567204] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 04:54:52,933 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 04:54:52,933 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 04:54:52,933 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1819598523] [2023-11-29 04:54:52,933 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 04:54:52,933 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 04:54:52,934 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:54:52,934 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 04:54:52,934 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-29 04:54:52,934 INFO L87 Difference]: Start difference. First operand 72 states and 74 transitions. Second operand has 4 states, 3 states have (on average 7.333333333333333) internal successors, (22), 4 states have internal predecessors, (22), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-29 04:54:53,004 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:54:53,004 INFO L93 Difference]: Finished difference Result 72 states and 74 transitions. [2023-11-29 04:54:53,004 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 04:54:53,004 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 7.333333333333333) internal successors, (22), 4 states have internal predecessors, (22), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 24 [2023-11-29 04:54:53,005 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:54:53,005 INFO L225 Difference]: With dead ends: 72 [2023-11-29 04:54:53,005 INFO L226 Difference]: Without dead ends: 68 [2023-11-29 04:54:53,005 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 21 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 04:54:53,006 INFO L413 NwaCegarLoop]: 26 mSDtfsCounter, 43 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 55 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 44 SdHoareTripleChecker+Valid, 43 SdHoareTripleChecker+Invalid, 59 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 55 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 04:54:53,006 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [44 Valid, 43 Invalid, 59 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 55 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 04:54:53,007 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states. [2023-11-29 04:54:53,011 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 68. [2023-11-29 04:54:53,012 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 68 states, 48 states have (on average 1.375) internal successors, (66), 64 states have internal predecessors, (66), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-29 04:54:53,012 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 70 transitions. [2023-11-29 04:54:53,012 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 70 transitions. Word has length 24 [2023-11-29 04:54:53,013 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:54:53,013 INFO L495 AbstractCegarLoop]: Abstraction has 68 states and 70 transitions. [2023-11-29 04:54:53,013 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 7.333333333333333) internal successors, (22), 4 states have internal predecessors, (22), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-29 04:54:53,013 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 70 transitions. [2023-11-29 04:54:53,014 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2023-11-29 04:54:53,014 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:54:53,014 INFO L195 NwaCegarLoop]: trace histogram [1, 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 04:54:53,018 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_633b88e6-0ddb-42d2-b4d6-cfaa78431fa8/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2023-11-29 04:54:53,216 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_633b88e6-0ddb-42d2-b4d6-cfaa78431fa8/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:54:53,217 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2023-11-29 04:54:53,217 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:54:53,217 INFO L85 PathProgramCache]: Analyzing trace with hash 1918029427, now seen corresponding path program 1 times [2023-11-29 04:54:53,217 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:54:53,217 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1714322539] [2023-11-29 04:54:53,217 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:54:53,217 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:54:53,223 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 04:54:53,223 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [705249879] [2023-11-29 04:54:53,223 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:54:53,223 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:54:53,224 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_633b88e6-0ddb-42d2-b4d6-cfaa78431fa8/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:54:53,225 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_633b88e6-0ddb-42d2-b4d6-cfaa78431fa8/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:54:53,227 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_633b88e6-0ddb-42d2-b4d6-cfaa78431fa8/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2023-11-29 04:54:53,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:54:53,270 INFO L262 TraceCheckSpWp]: Trace formula consists of 66 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-29 04:54:53,271 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:54:53,359 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 04:54:53,359 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 04:54:53,359 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:54:53,359 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1714322539] [2023-11-29 04:54:53,360 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 04:54:53,360 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [705249879] [2023-11-29 04:54:53,360 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [705249879] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 04:54:53,360 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 04:54:53,360 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 04:54:53,360 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [192196810] [2023-11-29 04:54:53,360 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 04:54:53,361 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 04:54:53,361 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:54:53,361 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 04:54:53,361 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-29 04:54:53,362 INFO L87 Difference]: Start difference. First operand 68 states and 70 transitions. Second operand has 4 states, 3 states have (on average 7.666666666666667) internal successors, (23), 4 states have internal predecessors, (23), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-29 04:54:53,434 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:54:53,434 INFO L93 Difference]: Finished difference Result 71 states and 73 transitions. [2023-11-29 04:54:53,434 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 04:54:53,435 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 7.666666666666667) internal successors, (23), 4 states have internal predecessors, (23), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 25 [2023-11-29 04:54:53,435 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:54:53,435 INFO L225 Difference]: With dead ends: 71 [2023-11-29 04:54:53,436 INFO L226 Difference]: Without dead ends: 70 [2023-11-29 04:54:53,436 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 22 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 04:54:53,437 INFO L413 NwaCegarLoop]: 38 mSDtfsCounter, 0 mSDsluCounter, 34 mSDsCounter, 0 mSdLazyCounter, 79 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 72 SdHoareTripleChecker+Invalid, 79 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 79 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 04:54:53,437 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 72 Invalid, 79 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 79 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 04:54:53,437 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70 states. [2023-11-29 04:54:53,441 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70 to 70. [2023-11-29 04:54:53,441 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 70 states, 50 states have (on average 1.36) internal successors, (68), 66 states have internal predecessors, (68), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-29 04:54:53,442 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 70 states and 72 transitions. [2023-11-29 04:54:53,442 INFO L78 Accepts]: Start accepts. Automaton has 70 states and 72 transitions. Word has length 25 [2023-11-29 04:54:53,442 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:54:53,442 INFO L495 AbstractCegarLoop]: Abstraction has 70 states and 72 transitions. [2023-11-29 04:54:53,442 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 7.666666666666667) internal successors, (23), 4 states have internal predecessors, (23), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-29 04:54:53,443 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 72 transitions. [2023-11-29 04:54:53,443 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2023-11-29 04:54:53,443 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:54:53,443 INFO L195 NwaCegarLoop]: trace histogram [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 04:54:53,449 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_633b88e6-0ddb-42d2-b4d6-cfaa78431fa8/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2023-11-29 04:54:53,648 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_633b88e6-0ddb-42d2-b4d6-cfaa78431fa8/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2023-11-29 04:54:53,649 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2023-11-29 04:54:53,649 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:54:53,649 INFO L85 PathProgramCache]: Analyzing trace with hash 685310549, now seen corresponding path program 1 times [2023-11-29 04:54:53,649 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:54:53,649 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [907758156] [2023-11-29 04:54:53,649 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:54:53,650 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:54:53,658 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 04:54:53,658 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1449813192] [2023-11-29 04:54:53,658 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:54:53,658 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:54:53,659 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_633b88e6-0ddb-42d2-b4d6-cfaa78431fa8/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:54:53,659 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_633b88e6-0ddb-42d2-b4d6-cfaa78431fa8/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:54:53,660 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_633b88e6-0ddb-42d2-b4d6-cfaa78431fa8/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2023-11-29 04:54:53,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:54:53,695 INFO L262 TraceCheckSpWp]: Trace formula consists of 71 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-29 04:54:53,696 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:54:53,747 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 04:54:53,748 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 04:54:53,748 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:54:53,748 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [907758156] [2023-11-29 04:54:53,748 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 04:54:53,748 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1449813192] [2023-11-29 04:54:53,748 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1449813192] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 04:54:53,749 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 04:54:53,749 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-29 04:54:53,749 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [254715116] [2023-11-29 04:54:53,749 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 04:54:53,749 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 04:54:53,749 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:54:53,750 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 04:54:53,750 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-11-29 04:54:53,750 INFO L87 Difference]: Start difference. First operand 70 states and 72 transitions. Second operand has 6 states, 5 states have (on average 5.0) internal successors, (25), 5 states have internal predecessors, (25), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-29 04:54:53,800 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:54:53,800 INFO L93 Difference]: Finished difference Result 70 states and 72 transitions. [2023-11-29 04:54:53,800 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-29 04:54:53,800 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 5.0) internal successors, (25), 5 states have internal predecessors, (25), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 27 [2023-11-29 04:54:53,801 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:54:53,801 INFO L225 Difference]: With dead ends: 70 [2023-11-29 04:54:53,801 INFO L226 Difference]: Without dead ends: 69 [2023-11-29 04:54:53,802 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2023-11-29 04:54:53,802 INFO L413 NwaCegarLoop]: 43 mSDtfsCounter, 33 mSDsluCounter, 86 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 129 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 04:54:53,803 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [33 Valid, 129 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 04:54:53,803 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69 states. [2023-11-29 04:54:53,807 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69 to 69. [2023-11-29 04:54:53,807 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 69 states, 50 states have (on average 1.34) internal successors, (67), 65 states have internal predecessors, (67), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-29 04:54:53,808 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 69 states and 71 transitions. [2023-11-29 04:54:53,808 INFO L78 Accepts]: Start accepts. Automaton has 69 states and 71 transitions. Word has length 27 [2023-11-29 04:54:53,808 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:54:53,808 INFO L495 AbstractCegarLoop]: Abstraction has 69 states and 71 transitions. [2023-11-29 04:54:53,808 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 5.0) internal successors, (25), 5 states have internal predecessors, (25), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-29 04:54:53,809 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 71 transitions. [2023-11-29 04:54:53,809 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2023-11-29 04:54:53,809 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:54:53,810 INFO L195 NwaCegarLoop]: trace histogram [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 04:54:53,815 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_633b88e6-0ddb-42d2-b4d6-cfaa78431fa8/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2023-11-29 04:54:54,010 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_633b88e6-0ddb-42d2-b4d6-cfaa78431fa8/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2023-11-29 04:54:54,010 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2023-11-29 04:54:54,011 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:54:54,011 INFO L85 PathProgramCache]: Analyzing trace with hash -230209420, now seen corresponding path program 1 times [2023-11-29 04:54:54,011 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:54:54,011 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1984202632] [2023-11-29 04:54:54,011 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:54:54,011 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:54:54,018 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 04:54:54,018 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1345554676] [2023-11-29 04:54:54,018 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:54:54,019 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:54:54,019 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_633b88e6-0ddb-42d2-b4d6-cfaa78431fa8/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:54:54,020 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_633b88e6-0ddb-42d2-b4d6-cfaa78431fa8/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:54:54,020 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_633b88e6-0ddb-42d2-b4d6-cfaa78431fa8/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2023-11-29 04:54:54,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:54:54,056 INFO L262 TraceCheckSpWp]: Trace formula consists of 72 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-29 04:54:54,057 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:54:54,108 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 04:54:54,108 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 04:54:54,188 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 04:54:54,189 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:54:54,189 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1984202632] [2023-11-29 04:54:54,189 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 04:54:54,189 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1345554676] [2023-11-29 04:54:54,189 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1345554676] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 04:54:54,189 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 04:54:54,189 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 5] total 9 [2023-11-29 04:54:54,189 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [704302966] [2023-11-29 04:54:54,190 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 04:54:54,190 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-29 04:54:54,190 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:54:54,191 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-29 04:54:54,191 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2023-11-29 04:54:54,191 INFO L87 Difference]: Start difference. First operand 69 states and 71 transitions. Second operand has 10 states, 9 states have (on average 5.777777777777778) internal successors, (52), 10 states have internal predecessors, (52), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-29 04:54:54,310 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:54:54,310 INFO L93 Difference]: Finished difference Result 185 states and 189 transitions. [2023-11-29 04:54:54,310 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-11-29 04:54:54,311 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 5.777777777777778) internal successors, (52), 10 states have internal predecessors, (52), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 28 [2023-11-29 04:54:54,311 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:54:54,312 INFO L225 Difference]: With dead ends: 185 [2023-11-29 04:54:54,312 INFO L226 Difference]: Without dead ends: 170 [2023-11-29 04:54:54,313 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=99, Invalid=173, Unknown=0, NotChecked=0, Total=272 [2023-11-29 04:54:54,313 INFO L413 NwaCegarLoop]: 44 mSDtfsCounter, 119 mSDsluCounter, 297 mSDsCounter, 0 mSdLazyCounter, 53 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 119 SdHoareTripleChecker+Valid, 341 SdHoareTripleChecker+Invalid, 57 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 53 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 04:54:54,314 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [119 Valid, 341 Invalid, 57 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 53 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 04:54:54,314 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 170 states. [2023-11-29 04:54:54,320 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 170 to 124. [2023-11-29 04:54:54,320 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 124 states, 100 states have (on average 1.38) internal successors, (138), 115 states have internal predecessors, (138), 4 states have call successors, (4), 4 states have call predecessors, (4), 4 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2023-11-29 04:54:54,321 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 124 states to 124 states and 146 transitions. [2023-11-29 04:54:54,322 INFO L78 Accepts]: Start accepts. Automaton has 124 states and 146 transitions. Word has length 28 [2023-11-29 04:54:54,322 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:54:54,322 INFO L495 AbstractCegarLoop]: Abstraction has 124 states and 146 transitions. [2023-11-29 04:54:54,322 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 5.777777777777778) internal successors, (52), 10 states have internal predecessors, (52), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-29 04:54:54,322 INFO L276 IsEmpty]: Start isEmpty. Operand 124 states and 146 transitions. [2023-11-29 04:54:54,323 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2023-11-29 04:54:54,323 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:54:54,323 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-11-29 04:54:54,328 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_633b88e6-0ddb-42d2-b4d6-cfaa78431fa8/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2023-11-29 04:54:54,528 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_633b88e6-0ddb-42d2-b4d6-cfaa78431fa8/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2023-11-29 04:54:54,528 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2023-11-29 04:54:54,528 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:54:54,529 INFO L85 PathProgramCache]: Analyzing trace with hash 893986236, now seen corresponding path program 1 times [2023-11-29 04:54:54,529 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:54:54,529 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1875279026] [2023-11-29 04:54:54,529 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:54:54,529 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:54:54,536 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 04:54:54,536 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [111024592] [2023-11-29 04:54:54,536 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:54:54,536 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:54:54,536 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_633b88e6-0ddb-42d2-b4d6-cfaa78431fa8/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:54:54,537 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_633b88e6-0ddb-42d2-b4d6-cfaa78431fa8/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:54:54,540 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_633b88e6-0ddb-42d2-b4d6-cfaa78431fa8/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2023-11-29 04:54:54,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:54:54,578 INFO L262 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-29 04:54:54,579 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:54:54,616 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 04:54:54,617 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 04:54:54,700 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 04:54:54,700 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:54:54,700 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1875279026] [2023-11-29 04:54:54,700 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 04:54:54,700 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [111024592] [2023-11-29 04:54:54,700 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [111024592] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 04:54:54,700 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 04:54:54,701 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 5 [2023-11-29 04:54:54,701 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [863367952] [2023-11-29 04:54:54,701 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 04:54:54,701 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 04:54:54,701 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:54:54,702 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 04:54:54,702 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2023-11-29 04:54:54,702 INFO L87 Difference]: Start difference. First operand 124 states and 146 transitions. Second operand has 6 states, 5 states have (on average 11.0) internal successors, (55), 6 states have internal predecessors, (55), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-29 04:54:54,867 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:54:54,867 INFO L93 Difference]: Finished difference Result 171 states and 180 transitions. [2023-11-29 04:54:54,868 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-29 04:54:54,868 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 11.0) internal successors, (55), 6 states have internal predecessors, (55), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 31 [2023-11-29 04:54:54,868 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:54:54,869 INFO L225 Difference]: With dead ends: 171 [2023-11-29 04:54:54,869 INFO L226 Difference]: Without dead ends: 168 [2023-11-29 04:54:54,870 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=23, Unknown=0, NotChecked=0, Total=42 [2023-11-29 04:54:54,870 INFO L413 NwaCegarLoop]: 35 mSDtfsCounter, 136 mSDsluCounter, 71 mSDsCounter, 0 mSdLazyCounter, 122 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 138 SdHoareTripleChecker+Valid, 106 SdHoareTripleChecker+Invalid, 132 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 122 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 04:54:54,871 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [138 Valid, 106 Invalid, 132 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 122 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 04:54:54,871 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 168 states. [2023-11-29 04:54:54,876 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 168 to 128. [2023-11-29 04:54:54,877 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 128 states, 105 states have (on average 1.3238095238095238) internal successors, (139), 119 states have internal predecessors, (139), 4 states have call successors, (4), 4 states have call predecessors, (4), 4 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2023-11-29 04:54:54,878 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 128 states to 128 states and 147 transitions. [2023-11-29 04:54:54,878 INFO L78 Accepts]: Start accepts. Automaton has 128 states and 147 transitions. Word has length 31 [2023-11-29 04:54:54,878 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:54:54,878 INFO L495 AbstractCegarLoop]: Abstraction has 128 states and 147 transitions. [2023-11-29 04:54:54,878 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 11.0) internal successors, (55), 6 states have internal predecessors, (55), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-29 04:54:54,878 INFO L276 IsEmpty]: Start isEmpty. Operand 128 states and 147 transitions. [2023-11-29 04:54:54,879 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2023-11-29 04:54:54,879 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:54:54,879 INFO L195 NwaCegarLoop]: trace histogram [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 04:54:54,884 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_633b88e6-0ddb-42d2-b4d6-cfaa78431fa8/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2023-11-29 04:54:55,080 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_633b88e6-0ddb-42d2-b4d6-cfaa78431fa8/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2023-11-29 04:54:55,081 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2023-11-29 04:54:55,081 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:54:55,081 INFO L85 PathProgramCache]: Analyzing trace with hash 127315262, now seen corresponding path program 1 times [2023-11-29 04:54:55,081 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:54:55,081 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2132371394] [2023-11-29 04:54:55,081 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:54:55,081 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:54:55,089 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 04:54:55,089 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1585380307] [2023-11-29 04:54:55,089 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:54:55,089 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:54:55,089 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_633b88e6-0ddb-42d2-b4d6-cfaa78431fa8/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:54:55,090 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_633b88e6-0ddb-42d2-b4d6-cfaa78431fa8/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:54:55,091 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_633b88e6-0ddb-42d2-b4d6-cfaa78431fa8/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2023-11-29 04:54:55,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:54:55,132 INFO L262 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-29 04:54:55,133 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:54:55,228 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 04:54:55,228 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 04:54:55,292 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 04:54:55,293 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:54:55,293 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2132371394] [2023-11-29 04:54:55,293 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 04:54:55,293 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1585380307] [2023-11-29 04:54:55,293 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1585380307] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 04:54:55,293 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 04:54:55,293 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 7 [2023-11-29 04:54:55,293 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1064969309] [2023-11-29 04:54:55,294 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 04:54:55,294 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-29 04:54:55,294 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:54:55,295 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-29 04:54:55,295 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56 [2023-11-29 04:54:55,295 INFO L87 Difference]: Start difference. First operand 128 states and 147 transitions. Second operand has 8 states, 7 states have (on average 8.428571428571429) internal successors, (59), 8 states have internal predecessors, (59), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-29 04:54:55,435 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:54:55,435 INFO L93 Difference]: Finished difference Result 148 states and 164 transitions. [2023-11-29 04:54:55,435 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-29 04:54:55,435 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 8.428571428571429) internal successors, (59), 8 states have internal predecessors, (59), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 33 [2023-11-29 04:54:55,435 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:54:55,437 INFO L225 Difference]: With dead ends: 148 [2023-11-29 04:54:55,437 INFO L226 Difference]: Without dead ends: 141 [2023-11-29 04:54:55,437 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=40, Invalid=50, Unknown=0, NotChecked=0, Total=90 [2023-11-29 04:54:55,438 INFO L413 NwaCegarLoop]: 20 mSDtfsCounter, 76 mSDsluCounter, 63 mSDsCounter, 0 mSdLazyCounter, 108 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 77 SdHoareTripleChecker+Valid, 83 SdHoareTripleChecker+Invalid, 124 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 108 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 04:54:55,438 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [77 Valid, 83 Invalid, 124 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 108 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 04:54:55,439 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 141 states. [2023-11-29 04:54:55,445 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 141 to 128. [2023-11-29 04:54:55,445 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 128 states, 109 states have (on average 1.2110091743119267) internal successors, (132), 119 states have internal predecessors, (132), 4 states have call successors, (4), 4 states have call predecessors, (4), 4 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2023-11-29 04:54:55,446 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 128 states to 128 states and 140 transitions. [2023-11-29 04:54:55,446 INFO L78 Accepts]: Start accepts. Automaton has 128 states and 140 transitions. Word has length 33 [2023-11-29 04:54:55,446 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:54:55,446 INFO L495 AbstractCegarLoop]: Abstraction has 128 states and 140 transitions. [2023-11-29 04:54:55,447 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 8.428571428571429) internal successors, (59), 8 states have internal predecessors, (59), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-29 04:54:55,447 INFO L276 IsEmpty]: Start isEmpty. Operand 128 states and 140 transitions. [2023-11-29 04:54:55,447 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2023-11-29 04:54:55,447 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:54:55,447 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-11-29 04:54:55,453 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_633b88e6-0ddb-42d2-b4d6-cfaa78431fa8/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2023-11-29 04:54:55,652 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_633b88e6-0ddb-42d2-b4d6-cfaa78431fa8/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:54:55,653 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2023-11-29 04:54:55,653 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:54:55,653 INFO L85 PathProgramCache]: Analyzing trace with hash 2090884288, now seen corresponding path program 1 times [2023-11-29 04:54:55,653 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:54:55,653 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [270415795] [2023-11-29 04:54:55,653 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:54:55,653 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:54:55,661 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 04:54:55,661 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [926667033] [2023-11-29 04:54:55,661 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:54:55,661 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:54:55,661 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_633b88e6-0ddb-42d2-b4d6-cfaa78431fa8/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:54:55,662 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_633b88e6-0ddb-42d2-b4d6-cfaa78431fa8/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:54:55,663 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_633b88e6-0ddb-42d2-b4d6-cfaa78431fa8/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2023-11-29 04:54:55,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:54:55,700 INFO L262 TraceCheckSpWp]: Trace formula consists of 81 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-29 04:54:55,702 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:54:55,838 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 04:54:55,838 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 04:54:55,838 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:54:55,839 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [270415795] [2023-11-29 04:54:55,839 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 04:54:55,839 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [926667033] [2023-11-29 04:54:55,839 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [926667033] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 04:54:55,839 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 04:54:55,839 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-29 04:54:55,839 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1521085442] [2023-11-29 04:54:55,840 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 04:54:55,840 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 04:54:55,840 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:54:55,840 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 04:54:55,841 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-29 04:54:55,841 INFO L87 Difference]: Start difference. First operand 128 states and 140 transitions. Second operand has 6 states, 5 states have (on average 6.6) internal successors, (33), 6 states have internal predecessors, (33), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-29 04:54:55,904 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:54:55,904 INFO L93 Difference]: Finished difference Result 130 states and 142 transitions. [2023-11-29 04:54:55,904 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-29 04:54:55,905 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 6.6) internal successors, (33), 6 states have internal predecessors, (33), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 35 [2023-11-29 04:54:55,905 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:54:55,906 INFO L225 Difference]: With dead ends: 130 [2023-11-29 04:54:55,906 INFO L226 Difference]: Without dead ends: 116 [2023-11-29 04:54:55,906 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 30 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 04:54:55,907 INFO L413 NwaCegarLoop]: 25 mSDtfsCounter, 85 mSDsluCounter, 18 mSDsCounter, 0 mSdLazyCounter, 55 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 86 SdHoareTripleChecker+Valid, 43 SdHoareTripleChecker+Invalid, 61 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 55 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 04:54:55,907 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [86 Valid, 43 Invalid, 61 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 55 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 04:54:55,908 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 116 states. [2023-11-29 04:54:55,913 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 116 to 116. [2023-11-29 04:54:55,913 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 116 states, 101 states have (on average 1.108910891089109) internal successors, (112), 107 states have internal predecessors, (112), 4 states have call successors, (4), 4 states have call predecessors, (4), 4 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2023-11-29 04:54:55,914 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 116 states to 116 states and 120 transitions. [2023-11-29 04:54:55,914 INFO L78 Accepts]: Start accepts. Automaton has 116 states and 120 transitions. Word has length 35 [2023-11-29 04:54:55,915 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:54:55,915 INFO L495 AbstractCegarLoop]: Abstraction has 116 states and 120 transitions. [2023-11-29 04:54:55,915 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 6.6) internal successors, (33), 6 states have internal predecessors, (33), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-29 04:54:55,915 INFO L276 IsEmpty]: Start isEmpty. Operand 116 states and 120 transitions. [2023-11-29 04:54:55,916 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2023-11-29 04:54:55,916 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:54:55,916 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-11-29 04:54:55,921 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_633b88e6-0ddb-42d2-b4d6-cfaa78431fa8/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2023-11-29 04:54:56,116 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_633b88e6-0ddb-42d2-b4d6-cfaa78431fa8/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2023-11-29 04:54:56,116 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2023-11-29 04:54:56,117 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:54:56,117 INFO L85 PathProgramCache]: Analyzing trace with hash 799435496, now seen corresponding path program 1 times [2023-11-29 04:54:56,117 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:54:56,117 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1871868436] [2023-11-29 04:54:56,117 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:54:56,117 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:54:56,122 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 04:54:56,122 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1524165013] [2023-11-29 04:54:56,122 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:54:56,122 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:54:56,123 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_633b88e6-0ddb-42d2-b4d6-cfaa78431fa8/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:54:56,123 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_633b88e6-0ddb-42d2-b4d6-cfaa78431fa8/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:54:56,124 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_633b88e6-0ddb-42d2-b4d6-cfaa78431fa8/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2023-11-29 04:54:56,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:54:56,164 INFO L262 TraceCheckSpWp]: Trace formula consists of 95 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-29 04:54:56,165 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:54:56,212 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-29 04:54:56,212 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 04:54:56,281 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-29 04:54:56,281 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:54:56,281 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1871868436] [2023-11-29 04:54:56,281 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 04:54:56,281 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1524165013] [2023-11-29 04:54:56,281 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1524165013] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 04:54:56,281 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 04:54:56,282 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 5 [2023-11-29 04:54:56,282 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [38601895] [2023-11-29 04:54:56,282 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 04:54:56,282 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 04:54:56,282 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:54:56,283 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 04:54:56,283 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-29 04:54:56,283 INFO L87 Difference]: Start difference. First operand 116 states and 120 transitions. Second operand has 6 states, 5 states have (on average 14.6) internal successors, (73), 6 states have internal predecessors, (73), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2023-11-29 04:54:56,315 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:54:56,316 INFO L93 Difference]: Finished difference Result 132 states and 135 transitions. [2023-11-29 04:54:56,316 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-29 04:54:56,316 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 14.6) internal successors, (73), 6 states have internal predecessors, (73), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) Word has length 45 [2023-11-29 04:54:56,316 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:54:56,317 INFO L225 Difference]: With dead ends: 132 [2023-11-29 04:54:56,317 INFO L226 Difference]: Without dead ends: 131 [2023-11-29 04:54:56,318 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 84 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 04:54:56,318 INFO L413 NwaCegarLoop]: 32 mSDtfsCounter, 11 mSDsluCounter, 93 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 125 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 04:54:56,319 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 125 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 04:54:56,319 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 131 states. [2023-11-29 04:54:56,325 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 131 to 126. [2023-11-29 04:54:56,325 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 126 states, 110 states have (on average 1.0909090909090908) internal successors, (120), 116 states have internal predecessors, (120), 5 states have call successors, (5), 4 states have call predecessors, (5), 4 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2023-11-29 04:54:56,326 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 126 states to 126 states and 130 transitions. [2023-11-29 04:54:56,326 INFO L78 Accepts]: Start accepts. Automaton has 126 states and 130 transitions. Word has length 45 [2023-11-29 04:54:56,327 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:54:56,327 INFO L495 AbstractCegarLoop]: Abstraction has 126 states and 130 transitions. [2023-11-29 04:54:56,327 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 14.6) internal successors, (73), 6 states have internal predecessors, (73), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2023-11-29 04:54:56,327 INFO L276 IsEmpty]: Start isEmpty. Operand 126 states and 130 transitions. [2023-11-29 04:54:56,328 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2023-11-29 04:54:56,328 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:54:56,328 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1] [2023-11-29 04:54:56,334 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_633b88e6-0ddb-42d2-b4d6-cfaa78431fa8/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Ended with exit code 0 [2023-11-29 04:54:56,532 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_633b88e6-0ddb-42d2-b4d6-cfaa78431fa8/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2023-11-29 04:54:56,533 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2023-11-29 04:54:56,533 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:54:56,533 INFO L85 PathProgramCache]: Analyzing trace with hash 1388648805, now seen corresponding path program 1 times [2023-11-29 04:54:56,533 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:54:56,533 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [927477471] [2023-11-29 04:54:56,533 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:54:56,533 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:54:56,543 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 04:54:56,543 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [959598633] [2023-11-29 04:54:56,543 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:54:56,543 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:54:56,543 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_633b88e6-0ddb-42d2-b4d6-cfaa78431fa8/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:54:56,544 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_633b88e6-0ddb-42d2-b4d6-cfaa78431fa8/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:54:56,548 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_633b88e6-0ddb-42d2-b4d6-cfaa78431fa8/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2023-11-29 04:54:56,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:54:56,600 INFO L262 TraceCheckSpWp]: Trace formula consists of 140 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-29 04:54:56,603 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:54:56,830 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 60 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-11-29 04:54:56,830 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 04:54:57,020 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 60 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-11-29 04:54:57,020 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:54:57,020 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [927477471] [2023-11-29 04:54:57,020 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 04:54:57,021 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [959598633] [2023-11-29 04:54:57,021 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [959598633] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 04:54:57,021 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 04:54:57,021 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 13 [2023-11-29 04:54:57,021 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [312059798] [2023-11-29 04:54:57,021 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 04:54:57,022 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-11-29 04:54:57,022 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:54:57,023 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-11-29 04:54:57,023 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=74, Invalid=108, Unknown=0, NotChecked=0, Total=182 [2023-11-29 04:54:57,023 INFO L87 Difference]: Start difference. First operand 126 states and 130 transitions. Second operand has 14 states, 13 states have (on average 9.153846153846153) internal successors, (119), 14 states have internal predecessors, (119), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2023-11-29 04:54:57,321 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:54:57,321 INFO L93 Difference]: Finished difference Result 195 states and 201 transitions. [2023-11-29 04:54:57,321 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-11-29 04:54:57,322 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 9.153846153846153) internal successors, (119), 14 states have internal predecessors, (119), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) Word has length 73 [2023-11-29 04:54:57,322 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:54:57,323 INFO L225 Difference]: With dead ends: 195 [2023-11-29 04:54:57,323 INFO L226 Difference]: Without dead ends: 194 [2023-11-29 04:54:57,324 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 151 GetRequests, 132 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=180, Invalid=240, Unknown=0, NotChecked=0, Total=420 [2023-11-29 04:54:57,325 INFO L413 NwaCegarLoop]: 16 mSDtfsCounter, 77 mSDsluCounter, 115 mSDsCounter, 0 mSdLazyCounter, 206 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 77 SdHoareTripleChecker+Valid, 131 SdHoareTripleChecker+Invalid, 212 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 206 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-29 04:54:57,325 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [77 Valid, 131 Invalid, 212 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 206 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-29 04:54:57,325 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 194 states. [2023-11-29 04:54:57,333 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 194 to 170. [2023-11-29 04:54:57,334 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 170 states, 152 states have (on average 1.125) internal successors, (171), 158 states have internal predecessors, (171), 7 states have call successors, (7), 4 states have call predecessors, (7), 4 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2023-11-29 04:54:57,335 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 170 states to 170 states and 185 transitions. [2023-11-29 04:54:57,335 INFO L78 Accepts]: Start accepts. Automaton has 170 states and 185 transitions. Word has length 73 [2023-11-29 04:54:57,335 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:54:57,335 INFO L495 AbstractCegarLoop]: Abstraction has 170 states and 185 transitions. [2023-11-29 04:54:57,335 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 9.153846153846153) internal successors, (119), 14 states have internal predecessors, (119), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2023-11-29 04:54:57,336 INFO L276 IsEmpty]: Start isEmpty. Operand 170 states and 185 transitions. [2023-11-29 04:54:57,336 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2023-11-29 04:54:57,337 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:54:57,337 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1] [2023-11-29 04:54:57,342 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_633b88e6-0ddb-42d2-b4d6-cfaa78431fa8/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Ended with exit code 0 [2023-11-29 04:54:57,542 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_633b88e6-0ddb-42d2-b4d6-cfaa78431fa8/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2023-11-29 04:54:57,542 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2023-11-29 04:54:57,543 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:54:57,543 INFO L85 PathProgramCache]: Analyzing trace with hash 1188030000, now seen corresponding path program 2 times [2023-11-29 04:54:57,543 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:54:57,543 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [933092489] [2023-11-29 04:54:57,543 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:54:57,543 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:54:57,552 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 04:54:57,552 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [918435592] [2023-11-29 04:54:57,552 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-29 04:54:57,552 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:54:57,552 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_633b88e6-0ddb-42d2-b4d6-cfaa78431fa8/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:54:57,553 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_633b88e6-0ddb-42d2-b4d6-cfaa78431fa8/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:54:57,556 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_633b88e6-0ddb-42d2-b4d6-cfaa78431fa8/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2023-11-29 04:54:57,606 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-29 04:54:57,606 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 04:54:57,607 INFO L262 TraceCheckSpWp]: Trace formula consists of 153 conjuncts, 9 conjunts are in the unsatisfiable core [2023-11-29 04:54:57,609 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:54:57,841 INFO L134 CoverageAnalysis]: Checked inductivity of 96 backedges. 0 proven. 84 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-11-29 04:54:57,841 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 04:54:58,041 INFO L134 CoverageAnalysis]: Checked inductivity of 96 backedges. 0 proven. 84 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-11-29 04:54:58,041 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:54:58,041 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [933092489] [2023-11-29 04:54:58,041 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 04:54:58,041 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [918435592] [2023-11-29 04:54:58,041 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [918435592] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 04:54:58,041 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 04:54:58,042 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 15 [2023-11-29 04:54:58,042 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1364939291] [2023-11-29 04:54:58,042 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 04:54:58,042 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-11-29 04:54:58,042 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:54:58,043 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-11-29 04:54:58,043 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=91, Invalid=149, Unknown=0, NotChecked=0, Total=240 [2023-11-29 04:54:58,044 INFO L87 Difference]: Start difference. First operand 170 states and 185 transitions. Second operand has 16 states, 15 states have (on average 9.0) internal successors, (135), 16 states have internal predecessors, (135), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2023-11-29 04:54:58,321 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:54:58,321 INFO L93 Difference]: Finished difference Result 205 states and 214 transitions. [2023-11-29 04:54:58,322 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-11-29 04:54:58,322 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 9.0) internal successors, (135), 16 states have internal predecessors, (135), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) Word has length 81 [2023-11-29 04:54:58,322 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:54:58,323 INFO L225 Difference]: With dead ends: 205 [2023-11-29 04:54:58,323 INFO L226 Difference]: Without dead ends: 193 [2023-11-29 04:54:58,324 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 169 GetRequests, 146 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 77 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=249, Invalid=351, Unknown=0, NotChecked=0, Total=600 [2023-11-29 04:54:58,324 INFO L413 NwaCegarLoop]: 17 mSDtfsCounter, 162 mSDsluCounter, 117 mSDsCounter, 0 mSdLazyCounter, 198 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 163 SdHoareTripleChecker+Valid, 134 SdHoareTripleChecker+Invalid, 216 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 198 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-29 04:54:58,325 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [163 Valid, 134 Invalid, 216 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 198 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-29 04:54:58,325 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 193 states. [2023-11-29 04:54:58,333 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 193 to 178. [2023-11-29 04:54:58,334 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 178 states, 160 states have (on average 1.1125) internal successors, (178), 166 states have internal predecessors, (178), 7 states have call successors, (7), 4 states have call predecessors, (7), 4 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2023-11-29 04:54:58,335 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 178 states to 178 states and 192 transitions. [2023-11-29 04:54:58,335 INFO L78 Accepts]: Start accepts. Automaton has 178 states and 192 transitions. Word has length 81 [2023-11-29 04:54:58,335 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:54:58,335 INFO L495 AbstractCegarLoop]: Abstraction has 178 states and 192 transitions. [2023-11-29 04:54:58,336 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 9.0) internal successors, (135), 16 states have internal predecessors, (135), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2023-11-29 04:54:58,336 INFO L276 IsEmpty]: Start isEmpty. Operand 178 states and 192 transitions. [2023-11-29 04:54:58,337 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2023-11-29 04:54:58,337 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:54:58,337 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1] [2023-11-29 04:54:58,342 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_633b88e6-0ddb-42d2-b4d6-cfaa78431fa8/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Ended with exit code 0 [2023-11-29 04:54:58,540 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_633b88e6-0ddb-42d2-b4d6-cfaa78431fa8/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2023-11-29 04:54:58,541 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2023-11-29 04:54:58,541 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:54:58,541 INFO L85 PathProgramCache]: Analyzing trace with hash -1259014999, now seen corresponding path program 2 times [2023-11-29 04:54:58,541 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:54:58,541 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [346908816] [2023-11-29 04:54:58,541 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:54:58,541 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:54:58,550 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 04:54:58,551 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [673172302] [2023-11-29 04:54:58,551 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-29 04:54:58,551 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:54:58,551 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_633b88e6-0ddb-42d2-b4d6-cfaa78431fa8/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:54:58,552 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_633b88e6-0ddb-42d2-b4d6-cfaa78431fa8/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:54:58,553 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_633b88e6-0ddb-42d2-b4d6-cfaa78431fa8/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2023-11-29 04:54:58,603 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-29 04:54:58,604 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 04:54:58,605 INFO L262 TraceCheckSpWp]: Trace formula consists of 183 conjuncts, 11 conjunts are in the unsatisfiable core [2023-11-29 04:54:58,607 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:54:58,752 INFO L134 CoverageAnalysis]: Checked inductivity of 156 backedges. 0 proven. 156 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 04:54:58,752 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 04:54:58,952 INFO L134 CoverageAnalysis]: Checked inductivity of 156 backedges. 0 proven. 132 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2023-11-29 04:54:58,953 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:54:58,953 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [346908816] [2023-11-29 04:54:58,953 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 04:54:58,953 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [673172302] [2023-11-29 04:54:58,953 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [673172302] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 04:54:58,953 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 04:54:58,953 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 11] total 21 [2023-11-29 04:54:58,953 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [72025919] [2023-11-29 04:54:58,953 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 04:54:58,954 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2023-11-29 04:54:58,954 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:54:58,955 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2023-11-29 04:54:58,955 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=131, Invalid=331, Unknown=0, NotChecked=0, Total=462 [2023-11-29 04:54:58,955 INFO L87 Difference]: Start difference. First operand 178 states and 192 transitions. Second operand has 22 states, 21 states have (on average 8.333333333333334) internal successors, (175), 22 states have internal predecessors, (175), 8 states have call successors, (8), 5 states have call predecessors, (8), 5 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2023-11-29 04:54:59,225 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:54:59,226 INFO L93 Difference]: Finished difference Result 292 states and 297 transitions. [2023-11-29 04:54:59,226 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2023-11-29 04:54:59,226 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 21 states have (on average 8.333333333333334) internal successors, (175), 22 states have internal predecessors, (175), 8 states have call successors, (8), 5 states have call predecessors, (8), 5 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) Word has length 100 [2023-11-29 04:54:59,226 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:54:59,228 INFO L225 Difference]: With dead ends: 292 [2023-11-29 04:54:59,228 INFO L226 Difference]: Without dead ends: 288 [2023-11-29 04:54:59,229 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 217 GetRequests, 178 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 289 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=549, Invalid=1091, Unknown=0, NotChecked=0, Total=1640 [2023-11-29 04:54:59,230 INFO L413 NwaCegarLoop]: 30 mSDtfsCounter, 137 mSDsluCounter, 331 mSDsCounter, 0 mSdLazyCounter, 110 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 137 SdHoareTripleChecker+Valid, 361 SdHoareTripleChecker+Invalid, 114 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 110 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 04:54:59,230 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [137 Valid, 361 Invalid, 114 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 110 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 04:54:59,230 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 288 states. [2023-11-29 04:54:59,237 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 288 to 257. [2023-11-29 04:54:59,238 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 257 states, 230 states have (on average 1.1130434782608696) internal successors, (256), 236 states have internal predecessors, (256), 10 states have call successors, (10), 10 states have call predecessors, (10), 10 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2023-11-29 04:54:59,239 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 257 states to 257 states and 276 transitions. [2023-11-29 04:54:59,239 INFO L78 Accepts]: Start accepts. Automaton has 257 states and 276 transitions. Word has length 100 [2023-11-29 04:54:59,239 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:54:59,239 INFO L495 AbstractCegarLoop]: Abstraction has 257 states and 276 transitions. [2023-11-29 04:54:59,240 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 21 states have (on average 8.333333333333334) internal successors, (175), 22 states have internal predecessors, (175), 8 states have call successors, (8), 5 states have call predecessors, (8), 5 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2023-11-29 04:54:59,240 INFO L276 IsEmpty]: Start isEmpty. Operand 257 states and 276 transitions. [2023-11-29 04:54:59,240 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2023-11-29 04:54:59,240 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:54:59,241 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1] [2023-11-29 04:54:59,246 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_633b88e6-0ddb-42d2-b4d6-cfaa78431fa8/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Ended with exit code 0 [2023-11-29 04:54:59,441 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_633b88e6-0ddb-42d2-b4d6-cfaa78431fa8/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:54:59,441 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2023-11-29 04:54:59,442 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:54:59,442 INFO L85 PathProgramCache]: Analyzing trace with hash 633606503, now seen corresponding path program 2 times [2023-11-29 04:54:59,442 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:54:59,442 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1876509294] [2023-11-29 04:54:59,442 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:54:59,442 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:54:59,451 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 04:54:59,452 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [638141017] [2023-11-29 04:54:59,452 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-29 04:54:59,452 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:54:59,452 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_633b88e6-0ddb-42d2-b4d6-cfaa78431fa8/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:54:59,453 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_633b88e6-0ddb-42d2-b4d6-cfaa78431fa8/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:54:59,454 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_633b88e6-0ddb-42d2-b4d6-cfaa78431fa8/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2023-11-29 04:54:59,505 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-29 04:54:59,505 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 04:54:59,506 INFO L262 TraceCheckSpWp]: Trace formula consists of 188 conjuncts, 11 conjunts are in the unsatisfiable core [2023-11-29 04:54:59,507 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:54:59,609 INFO L134 CoverageAnalysis]: Checked inductivity of 168 backedges. 0 proven. 144 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2023-11-29 04:54:59,609 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 04:54:59,820 INFO L134 CoverageAnalysis]: Checked inductivity of 168 backedges. 0 proven. 144 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2023-11-29 04:54:59,820 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:54:59,821 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1876509294] [2023-11-29 04:54:59,821 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 04:54:59,821 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [638141017] [2023-11-29 04:54:59,821 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [638141017] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 04:54:59,821 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 04:54:59,821 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 11 [2023-11-29 04:54:59,821 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1801857177] [2023-11-29 04:54:59,821 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 04:54:59,822 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-29 04:54:59,822 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:54:59,823 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-29 04:54:59,823 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2023-11-29 04:54:59,823 INFO L87 Difference]: Start difference. First operand 257 states and 276 transitions. Second operand has 12 states, 11 states have (on average 15.363636363636363) internal successors, (169), 12 states have internal predecessors, (169), 8 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2023-11-29 04:55:00,179 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:55:00,179 INFO L93 Difference]: Finished difference Result 286 states and 296 transitions. [2023-11-29 04:55:00,179 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-29 04:55:00,180 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 15.363636363636363) internal successors, (169), 12 states have internal predecessors, (169), 8 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) Word has length 103 [2023-11-29 04:55:00,180 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:55:00,182 INFO L225 Difference]: With dead ends: 286 [2023-11-29 04:55:00,182 INFO L226 Difference]: Without dead ends: 280 [2023-11-29 04:55:00,182 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 208 GetRequests, 194 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=94, Invalid=146, Unknown=0, NotChecked=0, Total=240 [2023-11-29 04:55:00,183 INFO L413 NwaCegarLoop]: 66 mSDtfsCounter, 148 mSDsluCounter, 323 mSDsCounter, 0 mSdLazyCounter, 356 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 150 SdHoareTripleChecker+Valid, 389 SdHoareTripleChecker+Invalid, 368 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 356 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-29 04:55:00,183 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [150 Valid, 389 Invalid, 368 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 356 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-29 04:55:00,184 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 280 states. [2023-11-29 04:55:00,197 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 280 to 260. [2023-11-29 04:55:00,197 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 260 states, 233 states have (on average 1.0858369098712446) internal successors, (253), 239 states have internal predecessors, (253), 10 states have call successors, (10), 10 states have call predecessors, (10), 10 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2023-11-29 04:55:00,199 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 260 states to 260 states and 273 transitions. [2023-11-29 04:55:00,199 INFO L78 Accepts]: Start accepts. Automaton has 260 states and 273 transitions. Word has length 103 [2023-11-29 04:55:00,199 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:55:00,199 INFO L495 AbstractCegarLoop]: Abstraction has 260 states and 273 transitions. [2023-11-29 04:55:00,199 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 15.363636363636363) internal successors, (169), 12 states have internal predecessors, (169), 8 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2023-11-29 04:55:00,200 INFO L276 IsEmpty]: Start isEmpty. Operand 260 states and 273 transitions. [2023-11-29 04:55:00,201 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2023-11-29 04:55:00,201 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:55:00,201 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 1, 1] [2023-11-29 04:55:00,207 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_633b88e6-0ddb-42d2-b4d6-cfaa78431fa8/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Forceful destruction successful, exit code 0 [2023-11-29 04:55:00,401 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_633b88e6-0ddb-42d2-b4d6-cfaa78431fa8/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:55:00,401 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2023-11-29 04:55:00,402 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:55:00,402 INFO L85 PathProgramCache]: Analyzing trace with hash 851054419, now seen corresponding path program 2 times [2023-11-29 04:55:00,402 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:55:00,402 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [870335801] [2023-11-29 04:55:00,402 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:55:00,402 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:55:00,410 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 04:55:00,411 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1396345758] [2023-11-29 04:55:00,411 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-29 04:55:00,411 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:55:00,411 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_633b88e6-0ddb-42d2-b4d6-cfaa78431fa8/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:55:00,412 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_633b88e6-0ddb-42d2-b4d6-cfaa78431fa8/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:55:00,417 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_633b88e6-0ddb-42d2-b4d6-cfaa78431fa8/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2023-11-29 04:55:00,453 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-11-29 04:55:00,453 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 04:55:00,454 INFO L262 TraceCheckSpWp]: Trace formula consists of 58 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-29 04:55:00,455 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:55:00,546 INFO L134 CoverageAnalysis]: Checked inductivity of 224 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 216 trivial. 0 not checked. [2023-11-29 04:55:00,547 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 04:55:00,651 INFO L134 CoverageAnalysis]: Checked inductivity of 224 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 216 trivial. 0 not checked. [2023-11-29 04:55:00,651 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:55:00,651 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [870335801] [2023-11-29 04:55:00,652 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 04:55:00,652 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1396345758] [2023-11-29 04:55:00,652 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1396345758] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 04:55:00,652 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 04:55:00,652 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 5 [2023-11-29 04:55:00,652 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [984154774] [2023-11-29 04:55:00,652 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 04:55:00,653 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 04:55:00,653 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:55:00,653 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 04:55:00,653 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-11-29 04:55:00,654 INFO L87 Difference]: Start difference. First operand 260 states and 273 transitions. Second operand has 6 states, 5 states have (on average 9.8) internal successors, (49), 6 states have internal predecessors, (49), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-29 04:55:00,680 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:55:00,680 INFO L93 Difference]: Finished difference Result 260 states and 273 transitions. [2023-11-29 04:55:00,681 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 04:55:00,681 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 9.8) internal successors, (49), 6 states have internal predecessors, (49), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 117 [2023-11-29 04:55:00,681 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:55:00,683 INFO L225 Difference]: With dead ends: 260 [2023-11-29 04:55:00,683 INFO L226 Difference]: Without dead ends: 259 [2023-11-29 04:55:00,684 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 234 GetRequests, 228 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2023-11-29 04:55:00,685 INFO L413 NwaCegarLoop]: 31 mSDtfsCounter, 48 mSDsluCounter, 42 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 73 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 04:55:00,685 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [48 Valid, 73 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 04:55:00,686 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 259 states. [2023-11-29 04:55:00,698 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 259 to 259. [2023-11-29 04:55:00,699 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 259 states, 233 states have (on average 1.0600858369098713) internal successors, (247), 238 states have internal predecessors, (247), 10 states have call successors, (10), 10 states have call predecessors, (10), 10 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2023-11-29 04:55:00,700 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 259 states to 259 states and 267 transitions. [2023-11-29 04:55:00,701 INFO L78 Accepts]: Start accepts. Automaton has 259 states and 267 transitions. Word has length 117 [2023-11-29 04:55:00,701 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:55:00,701 INFO L495 AbstractCegarLoop]: Abstraction has 259 states and 267 transitions. [2023-11-29 04:55:00,701 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 9.8) internal successors, (49), 6 states have internal predecessors, (49), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-29 04:55:00,701 INFO L276 IsEmpty]: Start isEmpty. Operand 259 states and 267 transitions. [2023-11-29 04:55:00,703 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2023-11-29 04:55:00,703 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:55:00,703 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 1, 1] [2023-11-29 04:55:00,709 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_633b88e6-0ddb-42d2-b4d6-cfaa78431fa8/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Ended with exit code 0 [2023-11-29 04:55:00,904 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_633b88e6-0ddb-42d2-b4d6-cfaa78431fa8/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable20 [2023-11-29 04:55:00,904 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2023-11-29 04:55:00,904 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:55:00,904 INFO L85 PathProgramCache]: Analyzing trace with hash 913861449, now seen corresponding path program 2 times [2023-11-29 04:55:00,904 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:55:00,904 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [959319657] [2023-11-29 04:55:00,905 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:55:00,905 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:55:00,917 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 04:55:00,917 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1352719699] [2023-11-29 04:55:00,917 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-29 04:55:00,917 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:55:00,918 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_633b88e6-0ddb-42d2-b4d6-cfaa78431fa8/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:55:00,919 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_633b88e6-0ddb-42d2-b4d6-cfaa78431fa8/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:55:00,921 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_633b88e6-0ddb-42d2-b4d6-cfaa78431fa8/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2023-11-29 04:55:00,959 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-11-29 04:55:00,959 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 04:55:00,959 INFO L262 TraceCheckSpWp]: Trace formula consists of 66 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-29 04:55:00,962 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:55:01,096 INFO L134 CoverageAnalysis]: Checked inductivity of 504 backedges. 90 proven. 0 refuted. 0 times theorem prover too weak. 414 trivial. 0 not checked. [2023-11-29 04:55:01,096 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 04:55:01,096 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:55:01,097 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [959319657] [2023-11-29 04:55:01,097 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 04:55:01,097 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1352719699] [2023-11-29 04:55:01,097 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1352719699] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 04:55:01,097 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 04:55:01,097 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-29 04:55:01,097 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1885967830] [2023-11-29 04:55:01,097 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 04:55:01,098 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-29 04:55:01,098 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:55:01,098 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-29 04:55:01,098 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2023-11-29 04:55:01,099 INFO L87 Difference]: Start difference. First operand 259 states and 267 transitions. Second operand has 7 states, 6 states have (on average 6.333333333333333) internal successors, (38), 7 states have internal predecessors, (38), 2 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-29 04:55:01,191 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:55:01,192 INFO L93 Difference]: Finished difference Result 259 states and 267 transitions. [2023-11-29 04:55:01,192 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-29 04:55:01,193 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 6.333333333333333) internal successors, (38), 7 states have internal predecessors, (38), 2 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 169 [2023-11-29 04:55:01,193 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:55:01,195 INFO L225 Difference]: With dead ends: 259 [2023-11-29 04:55:01,195 INFO L226 Difference]: Without dead ends: 258 [2023-11-29 04:55:01,195 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 169 GetRequests, 163 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2023-11-29 04:55:01,196 INFO L413 NwaCegarLoop]: 18 mSDtfsCounter, 16 mSDsluCounter, 54 mSDsCounter, 0 mSdLazyCounter, 79 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 72 SdHoareTripleChecker+Invalid, 81 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 79 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 04:55:01,196 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 72 Invalid, 81 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 79 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 04:55:01,197 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 258 states. [2023-11-29 04:55:01,210 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 258 to 258. [2023-11-29 04:55:01,211 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 258 states, 233 states have (on average 1.0429184549356223) internal successors, (243), 237 states have internal predecessors, (243), 10 states have call successors, (10), 10 states have call predecessors, (10), 10 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2023-11-29 04:55:01,212 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 258 states to 258 states and 263 transitions. [2023-11-29 04:55:01,212 INFO L78 Accepts]: Start accepts. Automaton has 258 states and 263 transitions. Word has length 169 [2023-11-29 04:55:01,213 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:55:01,213 INFO L495 AbstractCegarLoop]: Abstraction has 258 states and 263 transitions. [2023-11-29 04:55:01,213 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 6.333333333333333) internal successors, (38), 7 states have internal predecessors, (38), 2 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-29 04:55:01,213 INFO L276 IsEmpty]: Start isEmpty. Operand 258 states and 263 transitions. [2023-11-29 04:55:01,215 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2023-11-29 04:55:01,215 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:55:01,215 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 1, 1] [2023-11-29 04:55:01,220 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_633b88e6-0ddb-42d2-b4d6-cfaa78431fa8/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Ended with exit code 0 [2023-11-29 04:55:01,415 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21,21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_633b88e6-0ddb-42d2-b4d6-cfaa78431fa8/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:55:01,415 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2023-11-29 04:55:01,416 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:55:01,416 INFO L85 PathProgramCache]: Analyzing trace with hash 2073367572, now seen corresponding path program 3 times [2023-11-29 04:55:01,416 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:55:01,416 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [999787879] [2023-11-29 04:55:01,416 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:55:01,416 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:55:01,426 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 04:55:01,426 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1105231777] [2023-11-29 04:55:01,426 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-11-29 04:55:01,426 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:55:01,427 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_633b88e6-0ddb-42d2-b4d6-cfaa78431fa8/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:55:01,427 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_633b88e6-0ddb-42d2-b4d6-cfaa78431fa8/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:55:01,428 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_633b88e6-0ddb-42d2-b4d6-cfaa78431fa8/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2023-11-29 04:55:01,931 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2023-11-29 04:55:01,931 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 04:55:01,932 INFO L262 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 11 conjunts are in the unsatisfiable core [2023-11-29 04:55:01,935 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:55:41,905 WARN L876 $PredicateComparison]: unable to prove that (exists ((|ULTIMATE.start_main_~y~0#1| Int)) (let ((.cse0 (* |ULTIMATE.start_main_~y~0#1| |ULTIMATE.start_main_~y~0#1|))) (and (= (mod (+ |ULTIMATE.start_main_~y~0#1| .cse0) 2) 0) (<= .cse0 (+ 9223372036854775806 (* 2 |ULTIMATE.start_main_~y~0#1|))) (<= .cse0 9223372036854775807) (<= |c_ULTIMATE.start_main_~x~0#1| (+ |ULTIMATE.start_main_~y~0#1| (div (+ (* (- 1) |ULTIMATE.start_main_~y~0#1|) .cse0) 2)))))) is different from true [2023-11-29 04:55:45,929 INFO L134 CoverageAnalysis]: Checked inductivity of 560 backedges. 156 proven. 0 refuted. 0 times theorem prover too weak. 402 trivial. 2 not checked. [2023-11-29 04:55:45,929 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 04:55:58,215 INFO L134 CoverageAnalysis]: Checked inductivity of 560 backedges. 116 proven. 0 refuted. 0 times theorem prover too weak. 444 trivial. 0 not checked. [2023-11-29 04:55:58,215 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:55:58,215 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [999787879] [2023-11-29 04:55:58,216 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 04:55:58,216 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1105231777] [2023-11-29 04:55:58,216 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1105231777] provided 1 perfect and 1 imperfect interpolant sequences [2023-11-29 04:55:58,216 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-29 04:55:58,216 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [8] total 13 [2023-11-29 04:55:58,216 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1696714662] [2023-11-29 04:55:58,216 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 04:55:58,217 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-29 04:55:58,217 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:55:58,217 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-29 04:55:58,217 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=120, Unknown=2, NotChecked=22, Total=182 [2023-11-29 04:55:58,218 INFO L87 Difference]: Start difference. First operand 258 states and 263 transitions. Second operand has 8 states, 7 states have (on average 5.857142857142857) internal successors, (41), 8 states have internal predecessors, (41), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-29 04:55:58,490 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:55:58,490 INFO L93 Difference]: Finished difference Result 258 states and 263 transitions. [2023-11-29 04:55:58,491 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-29 04:55:58,491 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 5.857142857142857) internal successors, (41), 8 states have internal predecessors, (41), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 177 [2023-11-29 04:55:58,491 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:55:58,493 INFO L225 Difference]: With dead ends: 258 [2023-11-29 04:55:58,493 INFO L226 Difference]: Without dead ends: 252 [2023-11-29 04:55:58,493 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 356 GetRequests, 340 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 24.0s TimeCoverageRelationStatistics Valid=67, Invalid=207, Unknown=2, NotChecked=30, Total=306 [2023-11-29 04:55:58,494 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 81 mSDsluCounter, 39 mSDsCounter, 0 mSdLazyCounter, 79 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 82 SdHoareTripleChecker+Valid, 51 SdHoareTripleChecker+Invalid, 93 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 79 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 04:55:58,494 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [82 Valid, 51 Invalid, 93 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 79 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 04:55:58,495 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 252 states. [2023-11-29 04:55:58,509 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 252 to 252. [2023-11-29 04:55:58,509 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 252 states, 229 states have (on average 1.0131004366812226) internal successors, (232), 231 states have internal predecessors, (232), 10 states have call successors, (10), 10 states have call predecessors, (10), 10 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2023-11-29 04:55:58,511 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 252 states to 252 states and 252 transitions. [2023-11-29 04:55:58,511 INFO L78 Accepts]: Start accepts. Automaton has 252 states and 252 transitions. Word has length 177 [2023-11-29 04:55:58,511 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:55:58,512 INFO L495 AbstractCegarLoop]: Abstraction has 252 states and 252 transitions. [2023-11-29 04:55:58,512 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 5.857142857142857) internal successors, (41), 8 states have internal predecessors, (41), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-29 04:55:58,512 INFO L276 IsEmpty]: Start isEmpty. Operand 252 states and 252 transitions. [2023-11-29 04:55:58,515 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 245 [2023-11-29 04:55:58,515 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:55:58,515 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 1, 1] [2023-11-29 04:55:58,522 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_633b88e6-0ddb-42d2-b4d6-cfaa78431fa8/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Forceful destruction successful, exit code 0 [2023-11-29 04:55:58,715 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22,22 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_633b88e6-0ddb-42d2-b4d6-cfaa78431fa8/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:55:58,716 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2023-11-29 04:55:58,716 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:55:58,716 INFO L85 PathProgramCache]: Analyzing trace with hash 1588971027, now seen corresponding path program 3 times [2023-11-29 04:55:58,716 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:55:58,716 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [598033599] [2023-11-29 04:55:58,716 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:55:58,716 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:55:58,731 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 04:55:58,731 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [937750445] [2023-11-29 04:55:58,732 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-11-29 04:55:58,732 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:55:58,732 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_633b88e6-0ddb-42d2-b4d6-cfaa78431fa8/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:55:58,733 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_633b88e6-0ddb-42d2-b4d6-cfaa78431fa8/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:55:58,736 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_633b88e6-0ddb-42d2-b4d6-cfaa78431fa8/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process [2023-11-29 04:55:58,798 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2023-11-29 04:55:58,798 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 04:55:58,799 INFO L262 TraceCheckSpWp]: Trace formula consists of 72 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-29 04:55:58,803 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:55:58,872 INFO L134 CoverageAnalysis]: Checked inductivity of 1110 backedges. 219 proven. 0 refuted. 0 times theorem prover too weak. 891 trivial. 0 not checked. [2023-11-29 04:55:58,872 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 04:55:58,873 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:55:58,873 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [598033599] [2023-11-29 04:55:58,873 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 04:55:58,873 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [937750445] [2023-11-29 04:55:58,873 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [937750445] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 04:55:58,873 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 04:55:58,873 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-29 04:55:58,873 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [422056790] [2023-11-29 04:55:58,873 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 04:55:58,874 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 04:55:58,874 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:55:58,875 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 04:55:58,875 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-29 04:55:58,875 INFO L87 Difference]: Start difference. First operand 252 states and 252 transitions. Second operand has 5 states, 4 states have (on average 11.5) internal successors, (46), 5 states have internal predecessors, (46), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-29 04:55:58,922 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:55:58,922 INFO L93 Difference]: Finished difference Result 252 states and 252 transitions. [2023-11-29 04:55:58,922 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-29 04:55:58,922 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 11.5) internal successors, (46), 5 states have internal predecessors, (46), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 244 [2023-11-29 04:55:58,923 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:55:58,925 INFO L225 Difference]: With dead ends: 252 [2023-11-29 04:55:58,925 INFO L226 Difference]: Without dead ends: 251 [2023-11-29 04:55:58,925 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 245 GetRequests, 240 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-11-29 04:55:58,926 INFO L413 NwaCegarLoop]: 23 mSDtfsCounter, 5 mSDsluCounter, 46 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 69 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 04:55:58,926 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 69 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 04:55:58,927 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 251 states. [2023-11-29 04:55:58,940 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 251 to 251. [2023-11-29 04:55:58,941 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 251 states, 229 states have (on average 1.0087336244541485) internal successors, (231), 230 states have internal predecessors, (231), 10 states have call successors, (10), 10 states have call predecessors, (10), 10 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2023-11-29 04:55:58,942 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 251 states to 251 states and 251 transitions. [2023-11-29 04:55:58,943 INFO L78 Accepts]: Start accepts. Automaton has 251 states and 251 transitions. Word has length 244 [2023-11-29 04:55:58,943 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:55:58,943 INFO L495 AbstractCegarLoop]: Abstraction has 251 states and 251 transitions. [2023-11-29 04:55:58,943 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 11.5) internal successors, (46), 5 states have internal predecessors, (46), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-29 04:55:58,944 INFO L276 IsEmpty]: Start isEmpty. Operand 251 states and 251 transitions. [2023-11-29 04:55:58,945 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 248 [2023-11-29 04:55:58,945 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:55:58,946 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 1, 1] [2023-11-29 04:55:58,951 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_633b88e6-0ddb-42d2-b4d6-cfaa78431fa8/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Ended with exit code 0 [2023-11-29 04:55:59,146 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23,23 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_633b88e6-0ddb-42d2-b4d6-cfaa78431fa8/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:55:59,146 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2023-11-29 04:55:59,147 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:55:59,147 INFO L85 PathProgramCache]: Analyzing trace with hash -2093625411, now seen corresponding path program 3 times [2023-11-29 04:55:59,147 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:55:59,147 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1887684317] [2023-11-29 04:55:59,147 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:55:59,147 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:55:59,160 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 04:55:59,161 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1738780276] [2023-11-29 04:55:59,161 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-11-29 04:55:59,161 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:55:59,161 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_633b88e6-0ddb-42d2-b4d6-cfaa78431fa8/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:55:59,162 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_633b88e6-0ddb-42d2-b4d6-cfaa78431fa8/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:55:59,164 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_633b88e6-0ddb-42d2-b4d6-cfaa78431fa8/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Waiting until timeout for monitored process [2023-11-29 04:56:00,525 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) [2023-11-29 04:56:00,525 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 04:56:00,531 INFO L262 TraceCheckSpWp]: Trace formula consists of 410 conjuncts, 23 conjunts are in the unsatisfiable core [2023-11-29 04:56:00,535 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:56:01,075 INFO L134 CoverageAnalysis]: Checked inductivity of 1140 backedges. 1130 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 04:56:01,075 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 04:56:01,531 INFO L134 CoverageAnalysis]: Checked inductivity of 1140 backedges. 950 proven. 10 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2023-11-29 04:56:01,531 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:56:01,531 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1887684317] [2023-11-29 04:56:01,531 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 04:56:01,531 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1738780276] [2023-11-29 04:56:01,531 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1738780276] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 04:56:01,531 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 04:56:01,532 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23, 24] total 24 [2023-11-29 04:56:01,532 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1709584547] [2023-11-29 04:56:01,532 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 04:56:01,533 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2023-11-29 04:56:01,533 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:56:01,534 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2023-11-29 04:56:01,534 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=155, Invalid=397, Unknown=0, NotChecked=0, Total=552 [2023-11-29 04:56:01,535 INFO L87 Difference]: Start difference. First operand 251 states and 251 transitions. Second operand has 24 states, 24 states have (on average 9.583333333333334) internal successors, (230), 24 states have internal predecessors, (230), 10 states have call successors, (20), 11 states have call predecessors, (20), 11 states have return successors, (20), 10 states have call predecessors, (20), 10 states have call successors, (20) [2023-11-29 04:56:01,989 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:56:01,989 INFO L93 Difference]: Finished difference Result 276 states and 276 transitions. [2023-11-29 04:56:01,989 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2023-11-29 04:56:01,990 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 24 states have (on average 9.583333333333334) internal successors, (230), 24 states have internal predecessors, (230), 10 states have call successors, (20), 11 states have call predecessors, (20), 11 states have return successors, (20), 10 states have call predecessors, (20), 10 states have call successors, (20) Word has length 247 [2023-11-29 04:56:01,990 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:56:01,992 INFO L225 Difference]: With dead ends: 276 [2023-11-29 04:56:01,992 INFO L226 Difference]: Without dead ends: 248 [2023-11-29 04:56:01,993 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 513 GetRequests, 449 SyntacticMatches, 21 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 581 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=659, Invalid=1321, Unknown=0, NotChecked=0, Total=1980 [2023-11-29 04:56:01,993 INFO L413 NwaCegarLoop]: 202 mSDtfsCounter, 38 mSDsluCounter, 764 mSDsCounter, 0 mSdLazyCounter, 279 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 966 SdHoareTripleChecker+Invalid, 279 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 279 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-29 04:56:01,994 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [38 Valid, 966 Invalid, 279 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 279 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-29 04:56:01,994 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 248 states. [2023-11-29 04:56:02,005 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 248 to 248. [2023-11-29 04:56:02,005 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 248 states, 227 states have (on average 1.0) internal successors, (227), 227 states have internal predecessors, (227), 10 states have call successors, (10), 10 states have call predecessors, (10), 10 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2023-11-29 04:56:02,007 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 248 states to 248 states and 247 transitions. [2023-11-29 04:56:02,007 INFO L78 Accepts]: Start accepts. Automaton has 248 states and 247 transitions. Word has length 247 [2023-11-29 04:56:02,008 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:56:02,008 INFO L495 AbstractCegarLoop]: Abstraction has 248 states and 247 transitions. [2023-11-29 04:56:02,008 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 9.583333333333334) internal successors, (230), 24 states have internal predecessors, (230), 10 states have call successors, (20), 11 states have call predecessors, (20), 11 states have return successors, (20), 10 states have call predecessors, (20), 10 states have call successors, (20) [2023-11-29 04:56:02,008 INFO L276 IsEmpty]: Start isEmpty. Operand 248 states and 247 transitions. [2023-11-29 04:56:02,010 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 248 [2023-11-29 04:56:02,010 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:56:02,011 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 1, 1, 1, 1] [2023-11-29 04:56:02,017 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_633b88e6-0ddb-42d2-b4d6-cfaa78431fa8/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Ended with exit code 0 [2023-11-29 04:56:02,215 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_633b88e6-0ddb-42d2-b4d6-cfaa78431fa8/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable24 [2023-11-29 04:56:02,215 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2023-11-29 04:56:02,215 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:56:02,215 INFO L85 PathProgramCache]: Analyzing trace with hash -2093626149, now seen corresponding path program 1 times [2023-11-29 04:56:02,215 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:56:02,215 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [999681916] [2023-11-29 04:56:02,215 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:56:02,216 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:56:02,230 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 04:56:02,231 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [788749867] [2023-11-29 04:56:02,231 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:56:02,231 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:56:02,231 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_633b88e6-0ddb-42d2-b4d6-cfaa78431fa8/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:56:02,232 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_633b88e6-0ddb-42d2-b4d6-cfaa78431fa8/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:56:02,233 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_633b88e6-0ddb-42d2-b4d6-cfaa78431fa8/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Waiting until timeout for monitored process [2023-11-29 04:56:02,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:56:02,326 INFO L262 TraceCheckSpWp]: Trace formula consists of 410 conjuncts, 23 conjunts are in the unsatisfiable core [2023-11-29 04:56:02,331 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:56:02,671 INFO L134 CoverageAnalysis]: Checked inductivity of 1120 backedges. 0 proven. 940 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2023-11-29 04:56:02,672 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 04:56:03,463 INFO L134 CoverageAnalysis]: Checked inductivity of 1120 backedges. 0 proven. 940 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2023-11-29 04:56:03,463 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:56:03,463 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [999681916] [2023-11-29 04:56:03,464 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 04:56:03,464 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [788749867] [2023-11-29 04:56:03,464 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [788749867] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 04:56:03,464 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 04:56:03,464 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12] total 23 [2023-11-29 04:56:03,464 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1265418648] [2023-11-29 04:56:03,464 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 04:56:03,465 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2023-11-29 04:56:03,465 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:56:03,466 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2023-11-29 04:56:03,467 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=166, Invalid=386, Unknown=0, NotChecked=0, Total=552 [2023-11-29 04:56:03,468 INFO L87 Difference]: Start difference. First operand 248 states and 247 transitions. Second operand has 24 states, 23 states have (on average 17.26086956521739) internal successors, (397), 24 states have internal predecessors, (397), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2023-11-29 04:56:04,128 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:56:04,128 INFO L93 Difference]: Finished difference Result 248 states and 247 transitions. [2023-11-29 04:56:04,128 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-11-29 04:56:04,129 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 23 states have (on average 17.26086956521739) internal successors, (397), 24 states have internal predecessors, (397), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) Word has length 247 [2023-11-29 04:56:04,130 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:56:04,130 INFO L225 Difference]: With dead ends: 248 [2023-11-29 04:56:04,130 INFO L226 Difference]: Without dead ends: 0 [2023-11-29 04:56:04,131 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 492 GetRequests, 470 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=166, Invalid=386, Unknown=0, NotChecked=0, Total=552 [2023-11-29 04:56:04,132 INFO L413 NwaCegarLoop]: 117 mSDtfsCounter, 0 mSDsluCounter, 1083 mSDsCounter, 0 mSdLazyCounter, 1222 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1200 SdHoareTripleChecker+Invalid, 1222 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1222 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-11-29 04:56:04,132 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1200 Invalid, 1222 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1222 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-11-29 04:56:04,132 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-11-29 04:56:04,133 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-11-29 04:56:04,133 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:56:04,133 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-11-29 04:56:04,133 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 247 [2023-11-29 04:56:04,133 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:56:04,133 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-29 04:56:04,134 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 23 states have (on average 17.26086956521739) internal successors, (397), 24 states have internal predecessors, (397), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2023-11-29 04:56:04,134 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-11-29 04:56:04,134 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-11-29 04:56:04,140 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (23 of 24 remaining) [2023-11-29 04:56:04,141 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (22 of 24 remaining) [2023-11-29 04:56:04,141 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (21 of 24 remaining) [2023-11-29 04:56:04,141 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (20 of 24 remaining) [2023-11-29 04:56:04,142 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (19 of 24 remaining) [2023-11-29 04:56:04,142 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (18 of 24 remaining) [2023-11-29 04:56:04,142 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 24 remaining) [2023-11-29 04:56:04,142 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 24 remaining) [2023-11-29 04:56:04,142 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 24 remaining) [2023-11-29 04:56:04,143 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 24 remaining) [2023-11-29 04:56:04,143 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 24 remaining) [2023-11-29 04:56:04,143 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 24 remaining) [2023-11-29 04:56:04,143 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 24 remaining) [2023-11-29 04:56:04,144 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 24 remaining) [2023-11-29 04:56:04,144 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 24 remaining) [2023-11-29 04:56:04,144 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 24 remaining) [2023-11-29 04:56:04,144 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 24 remaining) [2023-11-29 04:56:04,144 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 24 remaining) [2023-11-29 04:56:04,145 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 24 remaining) [2023-11-29 04:56:04,145 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 24 remaining) [2023-11-29 04:56:04,145 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 24 remaining) [2023-11-29 04:56:04,145 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 24 remaining) [2023-11-29 04:56:04,146 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 24 remaining) [2023-11-29 04:56:04,146 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 24 remaining) [2023-11-29 04:56:04,153 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_633b88e6-0ddb-42d2-b4d6-cfaa78431fa8/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Forceful destruction successful, exit code 0 [2023-11-29 04:56:04,346 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_633b88e6-0ddb-42d2-b4d6-cfaa78431fa8/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable25 [2023-11-29 04:56:04,348 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2023-11-29 04:56:04,829 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 28) no Hoare annotation was computed. [2023-11-29 04:56:04,829 INFO L899 garLoopResultBuilder]: For program point L27-1(line 27) no Hoare annotation was computed. [2023-11-29 04:56:04,829 INFO L899 garLoopResultBuilder]: For program point L27-2(line 27) no Hoare annotation was computed. [2023-11-29 04:56:04,829 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW(line 37) no Hoare annotation was computed. [2023-11-29 04:56:04,829 INFO L899 garLoopResultBuilder]: For program point L27-3(lines 27 36) no Hoare annotation was computed. [2023-11-29 04:56:04,830 INFO L895 garLoopResultBuilder]: At program point L27-5(lines 27 36) the Hoare annotation is: (let ((.cse0 (<= ~counter~0 10)) (.cse1 (<= |ULTIMATE.start_main_~c~0#1| 9223372036854775806)) (.cse2 (<= |ULTIMATE.start_main_~k~0#1| 2147483647)) (.cse3 (<= 0 |ULTIMATE.start_main_~c~0#1|)) (.cse4 (<= |ULTIMATE.start_main_~x~0#1| 4611686018427387903))) (or (and .cse0 .cse1 .cse2 (<= 9 ~counter~0) .cse3 (<= 9 |ULTIMATE.start_main_~x~0#1|) (= 9 |ULTIMATE.start_main_~y~0#1|) .cse4) (and (= 6 |ULTIMATE.start_main_~y~0#1|) .cse0 (<= 6 |ULTIMATE.start_main_~x~0#1|) .cse1 .cse2 (<= 6 ~counter~0) .cse3 .cse4) (and (<= 2 |ULTIMATE.start_main_~x~0#1|) .cse2 (= 2 |ULTIMATE.start_main_~y~0#1|) (<= |ULTIMATE.start_main_~x~0#1| 3) .cse3 (<= |ULTIMATE.start_main_~c~0#1| 9223372036854775805) (= ~counter~0 2)) (and (= |ULTIMATE.start_main_~y~0#1| 4) .cse1 (= ~counter~0 4) .cse2 .cse3 (<= |ULTIMATE.start_main_~x~0#1| 4611686018427387892) (<= 4 |ULTIMATE.start_main_~x~0#1|)) (and (<= |ULTIMATE.start_main_~c~0#1| 1) .cse2 (= |ULTIMATE.start_main_~x~0#1| 1) .cse3 (= |ULTIMATE.start_main_~y~0#1| 1) (= ~counter~0 1)) (and .cse0 (<= 8 |ULTIMATE.start_main_~x~0#1|) .cse1 .cse2 .cse3 (<= 8 ~counter~0) (= |ULTIMATE.start_main_~y~0#1| 8) .cse4) (and (= ~counter~0 3) .cse1 .cse2 (= 3 |ULTIMATE.start_main_~y~0#1|) .cse3 (<= |ULTIMATE.start_main_~x~0#1| 6) (<= 3 |ULTIMATE.start_main_~x~0#1|)) (and (= |ULTIMATE.start_main_~c~0#1| 0) .cse2 (= |ULTIMATE.start_main_~y~0#1| 0) (= ~counter~0 0) (= |ULTIMATE.start_main_~x~0#1| 0)) (and .cse0 (<= 5 |ULTIMATE.start_main_~x~0#1|) (= 5 |ULTIMATE.start_main_~y~0#1|) .cse1 .cse2 .cse3 (<= 5 ~counter~0) (<= |ULTIMATE.start_main_~x~0#1| 4611686018427387897)) (and .cse0 .cse1 (<= 7 |ULTIMATE.start_main_~x~0#1|) (= 7 |ULTIMATE.start_main_~y~0#1|) .cse2 .cse3 (<= 7 ~counter~0) .cse4) (and (= ~counter~0 10) .cse1 .cse2 .cse3 (= |ULTIMATE.start_main_~y~0#1| 10) .cse4 (<= 10 |ULTIMATE.start_main_~x~0#1|)))) [2023-11-29 04:56:04,830 INFO L899 garLoopResultBuilder]: For program point L27-6(lines 27 36) no Hoare annotation was computed. [2023-11-29 04:56:04,830 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW(line 37) no Hoare annotation was computed. [2023-11-29 04:56:04,830 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW(line 35) no Hoare annotation was computed. [2023-11-29 04:56:04,830 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW(line 33) no Hoare annotation was computed. [2023-11-29 04:56:04,830 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW(line 28) no Hoare annotation was computed. [2023-11-29 04:56:04,830 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 27) no Hoare annotation was computed. [2023-11-29 04:56:04,831 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW(line 28) no Hoare annotation was computed. [2023-11-29 04:56:04,831 INFO L899 garLoopResultBuilder]: For program point L28(line 28) no Hoare annotation was computed. [2023-11-29 04:56:04,831 INFO L899 garLoopResultBuilder]: For program point L28-1(line 28) no Hoare annotation was computed. [2023-11-29 04:56:04,831 INFO L899 garLoopResultBuilder]: For program point L28-2(line 28) no Hoare annotation was computed. [2023-11-29 04:56:04,831 INFO L899 garLoopResultBuilder]: For program point L28-3(line 28) no Hoare annotation was computed. [2023-11-29 04:56:04,831 INFO L899 garLoopResultBuilder]: For program point L28-4(line 28) no Hoare annotation was computed. [2023-11-29 04:56:04,831 INFO L899 garLoopResultBuilder]: For program point L28-5(line 28) no Hoare annotation was computed. [2023-11-29 04:56:04,831 INFO L899 garLoopResultBuilder]: For program point L28-6(line 28) no Hoare annotation was computed. [2023-11-29 04:56:04,831 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW(line 37) no Hoare annotation was computed. [2023-11-29 04:56:04,831 INFO L899 garLoopResultBuilder]: For program point L28-7(line 28) no Hoare annotation was computed. [2023-11-29 04:56:04,832 INFO L895 garLoopResultBuilder]: At program point L28-8(line 28) the Hoare annotation is: (let ((.cse3 (<= |ULTIMATE.start_main_~x~0#1| 4611686018427387903)) (.cse4 (<= ~counter~0 10)) (.cse0 (<= |ULTIMATE.start_main_~c~0#1| 9223372036854775806)) (.cse1 (<= |ULTIMATE.start_main_~k~0#1| 2147483647)) (.cse2 (<= 0 |ULTIMATE.start_main_~c~0#1|))) (or (and (= ~counter~0 10) .cse0 .cse1 .cse2 (<= 9 |ULTIMATE.start_main_~x~0#1|) (= 9 |ULTIMATE.start_main_~y~0#1|) .cse3) (and .cse4 (= |ULTIMATE.start_main_~y~0#1| 4) .cse0 .cse1 .cse2 (<= |ULTIMATE.start_main_~x~0#1| 4611686018427387892) (<= 5 ~counter~0) (<= 4 |ULTIMATE.start_main_~x~0#1|)) (and .cse4 (<= 8 |ULTIMATE.start_main_~x~0#1|) .cse0 .cse1 (<= 9 ~counter~0) .cse2 (= |ULTIMATE.start_main_~y~0#1| 8) .cse3) (and (= |ULTIMATE.start_main_~c~0#1| 0) .cse1 (= |ULTIMATE.start_main_~y~0#1| 0) (= ~counter~0 1) (= |ULTIMATE.start_main_~x~0#1| 0)) (and .cse0 (= ~counter~0 4) .cse1 (= 3 |ULTIMATE.start_main_~y~0#1|) .cse2 (<= |ULTIMATE.start_main_~x~0#1| 6) (<= 3 |ULTIMATE.start_main_~x~0#1|)) (and (<= |ULTIMATE.start_main_~c~0#1| 1) .cse1 (= |ULTIMATE.start_main_~x~0#1| 1) .cse2 (= |ULTIMATE.start_main_~y~0#1| 1) (= ~counter~0 2)) (and (= 6 |ULTIMATE.start_main_~y~0#1|) .cse4 (<= 6 |ULTIMATE.start_main_~x~0#1|) .cse0 .cse1 .cse2 (<= 7 ~counter~0) .cse3) (and .cse4 .cse0 (<= 7 |ULTIMATE.start_main_~x~0#1|) (= 7 |ULTIMATE.start_main_~y~0#1|) .cse1 .cse2 (<= 8 ~counter~0) .cse3) (and .cse4 (<= 5 |ULTIMATE.start_main_~x~0#1|) (= 5 |ULTIMATE.start_main_~y~0#1|) .cse0 .cse1 (<= 6 ~counter~0) .cse2 (<= |ULTIMATE.start_main_~x~0#1| 4611686018427387897)) (and (= ~counter~0 3) (<= 2 |ULTIMATE.start_main_~x~0#1|) .cse1 (= 2 |ULTIMATE.start_main_~y~0#1|) (<= |ULTIMATE.start_main_~x~0#1| 3) .cse2 (<= |ULTIMATE.start_main_~c~0#1| 9223372036854775805)))) [2023-11-29 04:56:04,832 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW(line 37) no Hoare annotation was computed. [2023-11-29 04:56:04,832 INFO L899 garLoopResultBuilder]: For program point L28-9(lines 27 36) no Hoare annotation was computed. [2023-11-29 04:56:04,832 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW(line 34) no Hoare annotation was computed. [2023-11-29 04:56:04,832 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW(line 28) no Hoare annotation was computed. [2023-11-29 04:56:04,832 INFO L899 garLoopResultBuilder]: For program point L37(line 37) no Hoare annotation was computed. [2023-11-29 04:56:04,832 INFO L899 garLoopResultBuilder]: For program point L37-1(line 37) no Hoare annotation was computed. [2023-11-29 04:56:04,832 INFO L899 garLoopResultBuilder]: For program point L37-2(line 37) no Hoare annotation was computed. [2023-11-29 04:56:04,832 INFO L899 garLoopResultBuilder]: For program point L37-3(line 37) no Hoare annotation was computed. [2023-11-29 04:56:04,833 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 27) no Hoare annotation was computed. [2023-11-29 04:56:04,833 INFO L899 garLoopResultBuilder]: For program point L33(line 33) no Hoare annotation was computed. [2023-11-29 04:56:04,833 INFO L899 garLoopResultBuilder]: For program point L37-4(line 37) no Hoare annotation was computed. [2023-11-29 04:56:04,833 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2023-11-29 04:56:04,833 INFO L899 garLoopResultBuilder]: For program point L33-1(line 33) no Hoare annotation was computed. [2023-11-29 04:56:04,833 INFO L899 garLoopResultBuilder]: For program point L37-5(line 37) no Hoare annotation was computed. [2023-11-29 04:56:04,833 INFO L899 garLoopResultBuilder]: For program point L37-6(line 37) no Hoare annotation was computed. [2023-11-29 04:56:04,833 INFO L902 garLoopResultBuilder]: At program point L37-7(line 37) the Hoare annotation is: true [2023-11-29 04:56:04,833 INFO L899 garLoopResultBuilder]: For program point L37-8(line 37) no Hoare annotation was computed. [2023-11-29 04:56:04,833 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW(line 28) no Hoare annotation was computed. [2023-11-29 04:56:04,834 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW(line 37) no Hoare annotation was computed. [2023-11-29 04:56:04,834 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW(line 37) no Hoare annotation was computed. [2023-11-29 04:56:04,834 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW(line 34) no Hoare annotation was computed. [2023-11-29 04:56:04,834 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW(line 28) no Hoare annotation was computed. [2023-11-29 04:56:04,834 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2023-11-29 04:56:04,834 INFO L899 garLoopResultBuilder]: For program point L34(line 34) no Hoare annotation was computed. [2023-11-29 04:56:04,834 INFO L899 garLoopResultBuilder]: For program point L34-1(line 34) no Hoare annotation was computed. [2023-11-29 04:56:04,835 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW(line 37) no Hoare annotation was computed. [2023-11-29 04:56:04,835 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 28) no Hoare annotation was computed. [2023-11-29 04:56:04,835 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW(line 37) no Hoare annotation was computed. [2023-11-29 04:56:04,835 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW(line 35) no Hoare annotation was computed. [2023-11-29 04:56:04,835 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW(line 33) no Hoare annotation was computed. [2023-11-29 04:56:04,835 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW(line 28) no Hoare annotation was computed. [2023-11-29 04:56:04,835 INFO L899 garLoopResultBuilder]: For program point L35(line 35) no Hoare annotation was computed. [2023-11-29 04:56:04,835 INFO L899 garLoopResultBuilder]: For program point L35-1(line 35) no Hoare annotation was computed. [2023-11-29 04:56:04,835 INFO L899 garLoopResultBuilder]: For program point L10(lines 10 13) no Hoare annotation was computed. [2023-11-29 04:56:04,835 INFO L899 garLoopResultBuilder]: For program point __VERIFIER_assertEXIT(lines 9 15) no Hoare annotation was computed. [2023-11-29 04:56:04,836 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 9 15) the Hoare annotation is: true [2023-11-29 04:56:04,836 INFO L899 garLoopResultBuilder]: For program point L10-2(lines 9 15) no Hoare annotation was computed. [2023-11-29 04:56:04,839 INFO L445 BasicCegarLoop]: Path program histogram: [3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 04:56:04,841 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-29 04:56:04,858 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.11 04:56:04 BoogieIcfgContainer [2023-11-29 04:56:04,859 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-29 04:56:04,859 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-29 04:56:04,859 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-29 04:56:04,859 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-29 04:56:04,860 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 04:54:50" (3/4) ... [2023-11-29 04:56:04,862 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-29 04:56:04,865 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure __VERIFIER_assert [2023-11-29 04:56:04,870 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges [2023-11-29 04:56:04,870 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2023-11-29 04:56:04,870 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-11-29 04:56:04,871 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-29 04:56:04,962 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_633b88e6-0ddb-42d2-b4d6-cfaa78431fa8/bin/uautomizer-verify-BQ2R08f2Ya/witness.graphml [2023-11-29 04:56:04,963 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_633b88e6-0ddb-42d2-b4d6-cfaa78431fa8/bin/uautomizer-verify-BQ2R08f2Ya/witness.yml [2023-11-29 04:56:04,963 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-29 04:56:04,964 INFO L158 Benchmark]: Toolchain (without parser) took 75583.51ms. Allocated memory was 182.5MB in the beginning and 232.8MB in the end (delta: 50.3MB). Free memory was 132.7MB in the beginning and 75.8MB in the end (delta: 57.0MB). Peak memory consumption was 109.4MB. Max. memory is 16.1GB. [2023-11-29 04:56:04,964 INFO L158 Benchmark]: CDTParser took 0.19ms. Allocated memory is still 182.5MB. Free memory was 148.7MB in the beginning and 148.7MB in the end (delta: 28.3kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-29 04:56:04,965 INFO L158 Benchmark]: CACSL2BoogieTranslator took 214.61ms. Allocated memory is still 182.5MB. Free memory was 132.1MB in the beginning and 122.2MB in the end (delta: 9.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2023-11-29 04:56:04,965 INFO L158 Benchmark]: Boogie Procedure Inliner took 35.27ms. Allocated memory is still 182.5MB. Free memory was 122.2MB in the beginning and 120.3MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-29 04:56:04,965 INFO L158 Benchmark]: Boogie Preprocessor took 35.26ms. Allocated memory is still 182.5MB. Free memory was 120.3MB in the beginning and 118.9MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-29 04:56:04,966 INFO L158 Benchmark]: RCFGBuilder took 355.10ms. Allocated memory is still 182.5MB. Free memory was 118.9MB in the beginning and 104.8MB in the end (delta: 14.1MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2023-11-29 04:56:04,966 INFO L158 Benchmark]: TraceAbstraction took 74832.09ms. Allocated memory was 182.5MB in the beginning and 232.8MB in the end (delta: 50.3MB). Free memory was 104.2MB in the beginning and 81.0MB in the end (delta: 23.2MB). Peak memory consumption was 75.8MB. Max. memory is 16.1GB. [2023-11-29 04:56:04,966 INFO L158 Benchmark]: Witness Printer took 104.11ms. Allocated memory is still 232.8MB. Free memory was 80.0MB in the beginning and 75.8MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-29 04:56:04,968 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19ms. Allocated memory is still 182.5MB. Free memory was 148.7MB in the beginning and 148.7MB in the end (delta: 28.3kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 214.61ms. Allocated memory is still 182.5MB. Free memory was 132.1MB in the beginning and 122.2MB in the end (delta: 9.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 35.27ms. Allocated memory is still 182.5MB. Free memory was 122.2MB in the beginning and 120.3MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 35.26ms. Allocated memory is still 182.5MB. Free memory was 120.3MB in the beginning and 118.9MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 355.10ms. Allocated memory is still 182.5MB. Free memory was 118.9MB in the beginning and 104.8MB in the end (delta: 14.1MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 74832.09ms. Allocated memory was 182.5MB in the beginning and 232.8MB in the end (delta: 50.3MB). Free memory was 104.2MB in the beginning and 81.0MB in the end (delta: 23.2MB). Peak memory consumption was 75.8MB. Max. memory is 16.1GB. * Witness Printer took 104.11ms. Allocated memory is still 232.8MB. Free memory was 80.0MB in the beginning and 75.8MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 27]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 27]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 28]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 28]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 28]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 28]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 28]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 28]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 28]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 28]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 33]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 33]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 34]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 34]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 35]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 35]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 37]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 37]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 37]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 37]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 37]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 37]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 37]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 37]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 60 locations, 24 error locations. Started 1 CEGAR loops. OverallTime: 74.8s, OverallIterations: 26, TraceHistogramMax: 11, PathProgramHistogramMax: 3, EmptinessCheckTime: 0.0s, AutomataDifference: 4.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.5s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1404 SdHoareTripleChecker+Valid, 2.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1391 mSDsluCounter, 4994 SdHoareTripleChecker+Invalid, 2.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 3856 mSDsCounter, 134 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 3297 IncrementalHoareTripleChecker+Invalid, 3431 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 134 mSolverCounterUnsat, 1138 mSDtfsCounter, 3297 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 3215 GetRequests, 2944 SyntacticMatches, 21 SemanticMatches, 250 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 1065 ImplicationChecksByTransitivity, 26.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=260occurred in iteration=20, InterpolantAutomatonStates: 227, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 26 MinimizatonAttempts, 246 StatesRemovedByMinimization, 12 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 4 LocationsWithAnnotation, 17 PreInvPairs, 39 NumberOfFragments, 478 HoareAnnotationTreeSize, 17 FomulaSimplifications, 880 FormulaSimplificationTreeSizeReduction, 0.1s HoareSimplificationTime, 4 FomulaSimplificationsInter, 188 FormulaSimplificationTreeSizeReductionInter, 0.4s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 2.2s SatisfiabilityAnalysisTime, 61.6s InterpolantComputationTime, 1888 NumberOfCodeBlocks, 1288 NumberOfCodeBlocksAsserted, 41 NumberOfCheckSat, 3132 ConstructedInterpolants, 4 QuantifiedInterpolants, 11161 SizeOfPredicates, 45 NumberOfNonLiveVariables, 2647 ConjunctsInSsa, 162 ConjunctsInUnsatCore, 38 InterpolantComputations, 15 PerfectInterpolantSequences, 5924/8772 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 24 specifications checked. All of them hold - InvariantResult [Line: 27]: Loop Invariant Derived loop invariant: ((((((((((((((((((counter <= 10) && (c <= 9223372036854775806)) && (k <= 2147483647)) && (9 <= counter)) && (0 <= c)) && (9 <= x)) && (9 == y)) && (x <= 4611686018427387903)) || ((((((((6 == y) && (counter <= 10)) && (6 <= x)) && (c <= 9223372036854775806)) && (k <= 2147483647)) && (6 <= counter)) && (0 <= c)) && (x <= 4611686018427387903))) || (((((((2 <= x) && (k <= 2147483647)) && (2 == y)) && (x <= 3)) && (0 <= c)) && (c <= 9223372036854775805)) && (counter == 2))) || (((((((y == 4) && (c <= 9223372036854775806)) && (counter == 4)) && (k <= 2147483647)) && (0 <= c)) && (x <= 4611686018427387892)) && (4 <= x))) || ((((((c <= 1) && (k <= 2147483647)) && (x == 1)) && (0 <= c)) && (y == 1)) && (counter == 1))) || ((((((((counter <= 10) && (8 <= x)) && (c <= 9223372036854775806)) && (k <= 2147483647)) && (0 <= c)) && (8 <= counter)) && (y == 8)) && (x <= 4611686018427387903))) || (((((((counter == 3) && (c <= 9223372036854775806)) && (k <= 2147483647)) && (3 == y)) && (0 <= c)) && (x <= 6)) && (3 <= x))) || (((((c == 0) && (k <= 2147483647)) && (y == 0)) && (counter == 0)) && (x == 0))) || ((((((((counter <= 10) && (5 <= x)) && (5 == y)) && (c <= 9223372036854775806)) && (k <= 2147483647)) && (0 <= c)) && (5 <= counter)) && (x <= 4611686018427387897))) || ((((((((counter <= 10) && (c <= 9223372036854775806)) && (7 <= x)) && (7 == y)) && (k <= 2147483647)) && (0 <= c)) && (7 <= counter)) && (x <= 4611686018427387903))) || (((((((counter == 10) && (c <= 9223372036854775806)) && (k <= 2147483647)) && (0 <= c)) && (y == 10)) && (x <= 4611686018427387903)) && (10 <= x))) RESULT: Ultimate proved your program to be correct! [2023-11-29 04:56:05,073 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_633b88e6-0ddb-42d2-b4d6-cfaa78431fa8/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE