./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/bresenham-ll_valuebound100.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_3b2c6dc8-a580-46e1-b422-81b2f1468bab/bin/uautomizer-verify-BQ2R08f2Ya/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2c6dc8-a580-46e1-b422-81b2f1468bab/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_3b2c6dc8-a580-46e1-b422-81b2f1468bab/bin/uautomizer-verify-BQ2R08f2Ya/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2c6dc8-a580-46e1-b422-81b2f1468bab/bin/uautomizer-verify-BQ2R08f2Ya/config/AutomizerReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/bresenham-ll_valuebound100.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2c6dc8-a580-46e1-b422-81b2f1468bab/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_3b2c6dc8-a580-46e1-b422-81b2f1468bab/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 13f01b13f842e70fa5dc0726b8b5b83cfbe12eb21a3c45812a2355ca865a56c3 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-29 07:01:37,225 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-29 07:01:37,292 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2c6dc8-a580-46e1-b422-81b2f1468bab/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-Overflow-32bit-Automizer_Default.epf [2023-11-29 07:01:37,298 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-29 07:01:37,299 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-29 07:01:37,325 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-29 07:01:37,326 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-29 07:01:37,327 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-29 07:01:37,327 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-29 07:01:37,328 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-29 07:01:37,328 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-29 07:01:37,329 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-29 07:01:37,330 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-29 07:01:37,330 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-29 07:01:37,331 INFO L153 SettingsManager]: * Use SBE=true [2023-11-29 07:01:37,331 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-29 07:01:37,332 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-29 07:01:37,332 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-29 07:01:37,333 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-29 07:01:37,333 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-29 07:01:37,334 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-29 07:01:37,335 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-29 07:01:37,335 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-29 07:01:37,335 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-29 07:01:37,336 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-29 07:01:37,336 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-29 07:01:37,337 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-29 07:01:37,337 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-29 07:01:37,338 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-29 07:01:37,338 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-29 07:01:37,338 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-29 07:01:37,339 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-29 07:01:37,339 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-29 07:01:37,340 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 07:01:37,340 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-29 07:01:37,341 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-29 07:01:37,341 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-29 07:01:37,341 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-29 07:01:37,342 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-29 07:01:37,342 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-29 07:01:37,342 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-29 07:01:37,343 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-29 07:01:37,343 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-29 07:01:37,343 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-29 07:01:37,343 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_3b2c6dc8-a580-46e1-b422-81b2f1468bab/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2c6dc8-a580-46e1-b422-81b2f1468bab/bin/uautomizer-verify-BQ2R08f2Ya Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 13f01b13f842e70fa5dc0726b8b5b83cfbe12eb21a3c45812a2355ca865a56c3 [2023-11-29 07:01:37,561 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-29 07:01:37,593 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-29 07:01:37,595 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-29 07:01:37,596 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-29 07:01:37,597 INFO L274 PluginConnector]: CDTParser initialized [2023-11-29 07:01:37,598 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2c6dc8-a580-46e1-b422-81b2f1468bab/bin/uautomizer-verify-BQ2R08f2Ya/../../sv-benchmarks/c/nla-digbench-scaling/bresenham-ll_valuebound100.c [2023-11-29 07:01:40,464 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-29 07:01:40,626 INFO L384 CDTParser]: Found 1 translation units. [2023-11-29 07:01:40,627 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2c6dc8-a580-46e1-b422-81b2f1468bab/sv-benchmarks/c/nla-digbench-scaling/bresenham-ll_valuebound100.c [2023-11-29 07:01:40,634 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2c6dc8-a580-46e1-b422-81b2f1468bab/bin/uautomizer-verify-BQ2R08f2Ya/data/1a375080d/23f81112ae1746728b81aebc010a43ec/FLAGfdb81f75e [2023-11-29 07:01:40,646 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2c6dc8-a580-46e1-b422-81b2f1468bab/bin/uautomizer-verify-BQ2R08f2Ya/data/1a375080d/23f81112ae1746728b81aebc010a43ec [2023-11-29 07:01:40,648 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-29 07:01:40,649 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-29 07:01:40,650 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-29 07:01:40,650 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-29 07:01:40,655 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-29 07:01:40,656 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 07:01:40" (1/1) ... [2023-11-29 07:01:40,657 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@14599b9d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:01:40, skipping insertion in model container [2023-11-29 07:01:40,657 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 07:01:40" (1/1) ... [2023-11-29 07:01:40,680 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-29 07:01:40,846 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 07:01:40,857 INFO L202 MainTranslator]: Completed pre-run [2023-11-29 07:01:40,878 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 07:01:40,892 INFO L206 MainTranslator]: Completed translation [2023-11-29 07:01:40,893 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:01:40 WrapperNode [2023-11-29 07:01:40,893 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-29 07:01:40,894 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-29 07:01:40,894 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-29 07:01:40,894 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-29 07:01:40,901 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:01:40" (1/1) ... [2023-11-29 07:01:40,908 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:01:40" (1/1) ... [2023-11-29 07:01:40,934 INFO L138 Inliner]: procedures = 14, calls = 12, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 116 [2023-11-29 07:01:40,934 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-29 07:01:40,935 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-29 07:01:40,935 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-29 07:01:40,935 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-29 07:01:40,947 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:01:40" (1/1) ... [2023-11-29 07:01:40,947 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:01:40" (1/1) ... [2023-11-29 07:01:40,949 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:01:40" (1/1) ... [2023-11-29 07:01:40,960 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 07:01:40,960 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:01:40" (1/1) ... [2023-11-29 07:01:40,961 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:01:40" (1/1) ... [2023-11-29 07:01:40,965 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:01:40" (1/1) ... [2023-11-29 07:01:40,968 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:01:40" (1/1) ... [2023-11-29 07:01:40,970 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:01:40" (1/1) ... [2023-11-29 07:01:40,971 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:01:40" (1/1) ... [2023-11-29 07:01:40,973 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-29 07:01:40,974 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-29 07:01:40,974 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-29 07:01:40,974 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-29 07:01:40,975 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:01:40" (1/1) ... [2023-11-29 07:01:40,981 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 07:01:40,992 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2c6dc8-a580-46e1-b422-81b2f1468bab/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 07:01:41,007 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2c6dc8-a580-46e1-b422-81b2f1468bab/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-29 07:01:41,010 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2c6dc8-a580-46e1-b422-81b2f1468bab/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-29 07:01:41,039 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-29 07:01:41,040 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-29 07:01:41,040 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-29 07:01:41,040 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-11-29 07:01:41,040 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-29 07:01:41,040 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-29 07:01:41,040 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-11-29 07:01:41,040 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-11-29 07:01:41,097 INFO L241 CfgBuilder]: Building ICFG [2023-11-29 07:01:41,099 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-29 07:01:41,424 INFO L282 CfgBuilder]: Performing block encoding [2023-11-29 07:01:41,450 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-29 07:01:41,450 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-29 07:01:41,450 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 07:01:41 BoogieIcfgContainer [2023-11-29 07:01:41,451 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-29 07:01:41,453 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-29 07:01:41,454 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-29 07:01:41,456 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-29 07:01:41,456 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.11 07:01:40" (1/3) ... [2023-11-29 07:01:41,457 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1b1673cd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 07:01:41, skipping insertion in model container [2023-11-29 07:01:41,457 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:01:40" (2/3) ... [2023-11-29 07:01:41,457 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1b1673cd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 07:01:41, skipping insertion in model container [2023-11-29 07:01:41,458 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 07:01:41" (3/3) ... [2023-11-29 07:01:41,459 INFO L112 eAbstractionObserver]: Analyzing ICFG bresenham-ll_valuebound100.c [2023-11-29 07:01:41,474 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-29 07:01:41,475 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 58 error locations. [2023-11-29 07:01:41,520 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-29 07:01:41,526 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;@78f31404, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-29 07:01:41,526 INFO L358 AbstractCegarLoop]: Starting to check reachability of 58 error locations. [2023-11-29 07:01:41,530 INFO L276 IsEmpty]: Start isEmpty. Operand has 136 states, 71 states have (on average 1.9014084507042253) internal successors, (135), 129 states have internal predecessors, (135), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2023-11-29 07:01:41,536 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2023-11-29 07:01:41,536 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 07:01:41,536 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 07:01:41,537 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2023-11-29 07:01:41,540 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 07:01:41,541 INFO L85 PathProgramCache]: Analyzing trace with hash 1031300897, now seen corresponding path program 1 times [2023-11-29 07:01:41,550 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 07:01:41,550 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [314354647] [2023-11-29 07:01:41,550 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:01:41,551 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 07:01:41,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:01:41,676 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 07:01:41,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:01:41,685 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-29 07:01:41,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:01:41,694 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-29 07:01:41,694 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 07:01:41,694 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [314354647] [2023-11-29 07:01:41,695 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [314354647] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 07:01:41,695 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 07:01:41,696 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 07:01:41,697 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1567637788] [2023-11-29 07:01:41,698 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 07:01:41,702 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-29 07:01:41,702 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 07:01:41,734 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-29 07:01:41,735 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-29 07:01:41,738 INFO L87 Difference]: Start difference. First operand has 136 states, 71 states have (on average 1.9014084507042253) internal successors, (135), 129 states have internal predecessors, (135), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) Second operand has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-29 07:01:41,774 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 07:01:41,774 INFO L93 Difference]: Finished difference Result 270 states and 287 transitions. [2023-11-29 07:01:41,775 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-29 07:01:41,777 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) Word has length 13 [2023-11-29 07:01:41,777 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 07:01:41,784 INFO L225 Difference]: With dead ends: 270 [2023-11-29 07:01:41,784 INFO L226 Difference]: Without dead ends: 133 [2023-11-29 07:01:41,787 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 8 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 07:01:41,791 INFO L413 NwaCegarLoop]: 137 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, 137 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 07:01:41,792 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 137 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 07:01:41,807 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 133 states. [2023-11-29 07:01:41,828 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 133 to 133. [2023-11-29 07:01:41,829 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 133 states, 70 states have (on average 1.8428571428571427) internal successors, (129), 127 states have internal predecessors, (129), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-11-29 07:01:41,832 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 133 states to 133 states and 135 transitions. [2023-11-29 07:01:41,833 INFO L78 Accepts]: Start accepts. Automaton has 133 states and 135 transitions. Word has length 13 [2023-11-29 07:01:41,834 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 07:01:41,834 INFO L495 AbstractCegarLoop]: Abstraction has 133 states and 135 transitions. [2023-11-29 07:01:41,834 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-29 07:01:41,834 INFO L276 IsEmpty]: Start isEmpty. Operand 133 states and 135 transitions. [2023-11-29 07:01:41,835 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2023-11-29 07:01:41,836 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 07:01:41,836 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 07:01:41,836 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-29 07:01:41,836 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2023-11-29 07:01:41,837 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 07:01:41,837 INFO L85 PathProgramCache]: Analyzing trace with hash 638333469, now seen corresponding path program 1 times [2023-11-29 07:01:41,838 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 07:01:41,838 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1518808740] [2023-11-29 07:01:41,838 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:01:41,838 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 07:01:41,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:01:41,913 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 07:01:41,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:01:41,933 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-29 07:01:41,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:01:41,945 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-29 07:01:41,945 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 07:01:41,945 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1518808740] [2023-11-29 07:01:41,946 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1518808740] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 07:01:41,946 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 07:01:41,946 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 07:01:41,946 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [325680825] [2023-11-29 07:01:41,946 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 07:01:41,947 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 07:01:41,948 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 07:01:41,948 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 07:01:41,949 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 07:01:41,949 INFO L87 Difference]: Start difference. First operand 133 states and 135 transitions. Second operand has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 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 07:01:42,044 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 07:01:42,044 INFO L93 Difference]: Finished difference Result 133 states and 135 transitions. [2023-11-29 07:01:42,045 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 07:01:42,045 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 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 13 [2023-11-29 07:01:42,045 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 07:01:42,047 INFO L225 Difference]: With dead ends: 133 [2023-11-29 07:01:42,047 INFO L226 Difference]: Without dead ends: 129 [2023-11-29 07:01:42,047 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 07:01:42,049 INFO L413 NwaCegarLoop]: 71 mSDtfsCounter, 117 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 61 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 118 SdHoareTripleChecker+Valid, 81 SdHoareTripleChecker+Invalid, 64 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 61 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 07:01:42,049 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [118 Valid, 81 Invalid, 64 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 61 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 07:01:42,050 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 129 states. [2023-11-29 07:01:42,058 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 129 to 129. [2023-11-29 07:01:42,059 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 129 states, 70 states have (on average 1.7857142857142858) internal successors, (125), 123 states have internal predecessors, (125), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-11-29 07:01:42,061 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 129 states to 129 states and 131 transitions. [2023-11-29 07:01:42,061 INFO L78 Accepts]: Start accepts. Automaton has 129 states and 131 transitions. Word has length 13 [2023-11-29 07:01:42,062 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 07:01:42,063 INFO L495 AbstractCegarLoop]: Abstraction has 129 states and 131 transitions. [2023-11-29 07:01:42,063 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 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 07:01:42,063 INFO L276 IsEmpty]: Start isEmpty. Operand 129 states and 131 transitions. [2023-11-29 07:01:42,063 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2023-11-29 07:01:42,064 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 07:01:42,064 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 07:01:42,064 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-29 07:01:42,064 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2023-11-29 07:01:42,065 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 07:01:42,065 INFO L85 PathProgramCache]: Analyzing trace with hash -1686498902, now seen corresponding path program 1 times [2023-11-29 07:01:42,065 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 07:01:42,065 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1126891640] [2023-11-29 07:01:42,065 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:01:42,066 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 07:01:42,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:01:42,101 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 07:01:42,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:01:42,106 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-29 07:01:42,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:01:42,115 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-29 07:01:42,115 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 07:01:42,116 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1126891640] [2023-11-29 07:01:42,116 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1126891640] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 07:01:42,116 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 07:01:42,116 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 07:01:42,116 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [718385588] [2023-11-29 07:01:42,116 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 07:01:42,117 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 07:01:42,117 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 07:01:42,117 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 07:01:42,118 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 07:01:42,118 INFO L87 Difference]: Start difference. First operand 129 states and 131 transitions. Second operand has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 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 07:01:42,197 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 07:01:42,197 INFO L93 Difference]: Finished difference Result 129 states and 131 transitions. [2023-11-29 07:01:42,197 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 07:01:42,198 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 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 14 [2023-11-29 07:01:42,198 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 07:01:42,199 INFO L225 Difference]: With dead ends: 129 [2023-11-29 07:01:42,199 INFO L226 Difference]: Without dead ends: 125 [2023-11-29 07:01:42,200 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 07:01:42,201 INFO L413 NwaCegarLoop]: 71 mSDtfsCounter, 112 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 57 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 113 SdHoareTripleChecker+Valid, 81 SdHoareTripleChecker+Invalid, 60 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 57 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 07:01:42,201 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [113 Valid, 81 Invalid, 60 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 57 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 07:01:42,203 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 125 states. [2023-11-29 07:01:42,209 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 125 to 125. [2023-11-29 07:01:42,210 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 125 states, 70 states have (on average 1.7285714285714286) internal successors, (121), 119 states have internal predecessors, (121), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-11-29 07:01:42,211 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125 states to 125 states and 127 transitions. [2023-11-29 07:01:42,211 INFO L78 Accepts]: Start accepts. Automaton has 125 states and 127 transitions. Word has length 14 [2023-11-29 07:01:42,211 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 07:01:42,211 INFO L495 AbstractCegarLoop]: Abstraction has 125 states and 127 transitions. [2023-11-29 07:01:42,212 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 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 07:01:42,212 INFO L276 IsEmpty]: Start isEmpty. Operand 125 states and 127 transitions. [2023-11-29 07:01:42,212 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2023-11-29 07:01:42,212 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 07:01:42,213 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 07:01:42,213 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-29 07:01:42,213 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2023-11-29 07:01:42,213 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 07:01:42,214 INFO L85 PathProgramCache]: Analyzing trace with hash -741858369, now seen corresponding path program 1 times [2023-11-29 07:01:42,214 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 07:01:42,214 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [166151409] [2023-11-29 07:01:42,214 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:01:42,214 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 07:01:42,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:01:42,263 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 07:01:42,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:01:42,271 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-29 07:01:42,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:01:42,279 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-29 07:01:42,279 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 07:01:42,280 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [166151409] [2023-11-29 07:01:42,280 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [166151409] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 07:01:42,280 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 07:01:42,280 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 07:01:42,280 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1226165057] [2023-11-29 07:01:42,280 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 07:01:42,281 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 07:01:42,281 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 07:01:42,281 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 07:01:42,282 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-29 07:01:42,282 INFO L87 Difference]: Start difference. First operand 125 states and 127 transitions. Second operand has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 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 07:01:42,406 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 07:01:42,406 INFO L93 Difference]: Finished difference Result 125 states and 127 transitions. [2023-11-29 07:01:42,407 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 07:01:42,407 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 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 15 [2023-11-29 07:01:42,407 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 07:01:42,408 INFO L225 Difference]: With dead ends: 125 [2023-11-29 07:01:42,408 INFO L226 Difference]: Without dead ends: 122 [2023-11-29 07:01:42,409 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 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 07:01:42,410 INFO L413 NwaCegarLoop]: 57 mSDtfsCounter, 219 mSDsluCounter, 18 mSDsCounter, 0 mSdLazyCounter, 69 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 219 SdHoareTripleChecker+Valid, 75 SdHoareTripleChecker+Invalid, 74 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 69 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 07:01:42,410 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [219 Valid, 75 Invalid, 74 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 69 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 07:01:42,411 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 122 states. [2023-11-29 07:01:42,417 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 122 to 122. [2023-11-29 07:01:42,418 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 122 states, 70 states have (on average 1.6857142857142857) internal successors, (118), 116 states have internal predecessors, (118), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-11-29 07:01:42,419 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 122 states to 122 states and 124 transitions. [2023-11-29 07:01:42,419 INFO L78 Accepts]: Start accepts. Automaton has 122 states and 124 transitions. Word has length 15 [2023-11-29 07:01:42,419 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 07:01:42,419 INFO L495 AbstractCegarLoop]: Abstraction has 122 states and 124 transitions. [2023-11-29 07:01:42,420 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 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 07:01:42,420 INFO L276 IsEmpty]: Start isEmpty. Operand 122 states and 124 transitions. [2023-11-29 07:01:42,420 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2023-11-29 07:01:42,420 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 07:01:42,421 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 07:01:42,421 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-29 07:01:42,421 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2023-11-29 07:01:42,421 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 07:01:42,421 INFO L85 PathProgramCache]: Analyzing trace with hash -1522772916, now seen corresponding path program 1 times [2023-11-29 07:01:42,422 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 07:01:42,422 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1616701277] [2023-11-29 07:01:42,422 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:01:42,422 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 07:01:42,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:01:42,465 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 07:01:42,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:01:42,472 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-29 07:01:42,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:01:42,480 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-29 07:01:42,480 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 07:01:42,481 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1616701277] [2023-11-29 07:01:42,481 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1616701277] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 07:01:42,481 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 07:01:42,481 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 07:01:42,481 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1919865036] [2023-11-29 07:01:42,481 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 07:01:42,482 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 07:01:42,482 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 07:01:42,483 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 07:01:42,483 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-29 07:01:42,483 INFO L87 Difference]: Start difference. First operand 122 states and 124 transitions. Second operand has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 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 07:01:42,602 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 07:01:42,602 INFO L93 Difference]: Finished difference Result 122 states and 124 transitions. [2023-11-29 07:01:42,602 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 07:01:42,602 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 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 16 [2023-11-29 07:01:42,603 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 07:01:42,604 INFO L225 Difference]: With dead ends: 122 [2023-11-29 07:01:42,604 INFO L226 Difference]: Without dead ends: 119 [2023-11-29 07:01:42,604 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 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 07:01:42,605 INFO L413 NwaCegarLoop]: 57 mSDtfsCounter, 212 mSDsluCounter, 18 mSDsCounter, 0 mSdLazyCounter, 66 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 212 SdHoareTripleChecker+Valid, 75 SdHoareTripleChecker+Invalid, 71 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 66 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 07:01:42,606 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [212 Valid, 75 Invalid, 71 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 66 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 07:01:42,607 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 119 states. [2023-11-29 07:01:42,614 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 119 to 119. [2023-11-29 07:01:42,614 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 119 states, 70 states have (on average 1.6428571428571428) internal successors, (115), 113 states have internal predecessors, (115), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-11-29 07:01:42,615 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 119 states to 119 states and 121 transitions. [2023-11-29 07:01:42,615 INFO L78 Accepts]: Start accepts. Automaton has 119 states and 121 transitions. Word has length 16 [2023-11-29 07:01:42,615 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 07:01:42,616 INFO L495 AbstractCegarLoop]: Abstraction has 119 states and 121 transitions. [2023-11-29 07:01:42,616 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 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 07:01:42,616 INFO L276 IsEmpty]: Start isEmpty. Operand 119 states and 121 transitions. [2023-11-29 07:01:42,616 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2023-11-29 07:01:42,617 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 07:01:42,617 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 07:01:42,617 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-29 07:01:42,617 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2023-11-29 07:01:42,618 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 07:01:42,618 INFO L85 PathProgramCache]: Analyzing trace with hash 1199077326, now seen corresponding path program 1 times [2023-11-29 07:01:42,618 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 07:01:42,618 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [99227095] [2023-11-29 07:01:42,618 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:01:42,618 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 07:01:42,628 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 07:01:42,629 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1478057965] [2023-11-29 07:01:42,629 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:01:42,629 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 07:01:42,629 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2c6dc8-a580-46e1-b422-81b2f1468bab/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 07:01:42,635 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2c6dc8-a580-46e1-b422-81b2f1468bab/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 07:01:42,642 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2c6dc8-a580-46e1-b422-81b2f1468bab/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-29 07:01:42,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:01:42,694 INFO L262 TraceCheckSpWp]: Trace formula consists of 55 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-29 07:01:42,699 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 07:01:42,715 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-29 07:01:42,715 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 07:01:42,715 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 07:01:42,715 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [99227095] [2023-11-29 07:01:42,716 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 07:01:42,716 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1478057965] [2023-11-29 07:01:42,716 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1478057965] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 07:01:42,716 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 07:01:42,716 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 07:01:42,716 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1007779569] [2023-11-29 07:01:42,717 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 07:01:42,717 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 07:01:42,717 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 07:01:42,718 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 07:01:42,718 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 07:01:42,718 INFO L87 Difference]: Start difference. First operand 119 states and 121 transitions. Second operand has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-29 07:01:42,766 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 07:01:42,766 INFO L93 Difference]: Finished difference Result 222 states and 226 transitions. [2023-11-29 07:01:42,766 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 07:01:42,767 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 18 [2023-11-29 07:01:42,767 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 07:01:42,768 INFO L225 Difference]: With dead ends: 222 [2023-11-29 07:01:42,768 INFO L226 Difference]: Without dead ends: 216 [2023-11-29 07:01:42,769 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 16 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 07:01:42,770 INFO L413 NwaCegarLoop]: 111 mSDtfsCounter, 95 mSDsluCounter, 103 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 96 SdHoareTripleChecker+Valid, 214 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 07:01:42,770 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [96 Valid, 214 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 07:01:42,771 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 216 states. [2023-11-29 07:01:42,780 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 216 to 144. [2023-11-29 07:01:42,781 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 144 states, 94 states have (on average 1.6382978723404256) internal successors, (154), 137 states have internal predecessors, (154), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2023-11-29 07:01:42,782 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 144 states to 144 states and 162 transitions. [2023-11-29 07:01:42,782 INFO L78 Accepts]: Start accepts. Automaton has 144 states and 162 transitions. Word has length 18 [2023-11-29 07:01:42,782 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 07:01:42,782 INFO L495 AbstractCegarLoop]: Abstraction has 144 states and 162 transitions. [2023-11-29 07:01:42,782 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-29 07:01:42,783 INFO L276 IsEmpty]: Start isEmpty. Operand 144 states and 162 transitions. [2023-11-29 07:01:42,783 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2023-11-29 07:01:42,783 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 07:01:42,783 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 07:01:42,798 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2c6dc8-a580-46e1-b422-81b2f1468bab/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-29 07:01:42,986 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2c6dc8-a580-46e1-b422-81b2f1468bab/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2023-11-29 07:01:42,986 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2023-11-29 07:01:42,987 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 07:01:42,987 INFO L85 PathProgramCache]: Analyzing trace with hash 1262076752, now seen corresponding path program 1 times [2023-11-29 07:01:42,987 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 07:01:42,987 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [227655499] [2023-11-29 07:01:42,988 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:01:42,988 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 07:01:42,996 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 07:01:42,997 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [133728712] [2023-11-29 07:01:42,997 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:01:42,997 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 07:01:42,997 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2c6dc8-a580-46e1-b422-81b2f1468bab/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 07:01:42,998 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2c6dc8-a580-46e1-b422-81b2f1468bab/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 07:01:43,002 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2c6dc8-a580-46e1-b422-81b2f1468bab/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-29 07:01:43,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:01:43,051 INFO L262 TraceCheckSpWp]: Trace formula consists of 59 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-29 07:01:43,053 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 07:01:43,065 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-29 07:01:43,065 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 07:01:43,065 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 07:01:43,065 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [227655499] [2023-11-29 07:01:43,065 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 07:01:43,065 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [133728712] [2023-11-29 07:01:43,066 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [133728712] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 07:01:43,066 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 07:01:43,066 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 07:01:43,066 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [205064083] [2023-11-29 07:01:43,066 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 07:01:43,066 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 07:01:43,067 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 07:01:43,067 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 07:01:43,067 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 07:01:43,067 INFO L87 Difference]: Start difference. First operand 144 states and 162 transitions. Second operand has 3 states, 2 states have (on average 6.5) internal successors, (13), 3 states have internal predecessors, (13), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-29 07:01:43,116 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 07:01:43,116 INFO L93 Difference]: Finished difference Result 247 states and 267 transitions. [2023-11-29 07:01:43,116 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 07:01:43,117 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 6.5) internal successors, (13), 3 states have internal predecessors, (13), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 20 [2023-11-29 07:01:43,117 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 07:01:43,118 INFO L225 Difference]: With dead ends: 247 [2023-11-29 07:01:43,118 INFO L226 Difference]: Without dead ends: 241 [2023-11-29 07:01:43,119 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 07:01:43,120 INFO L413 NwaCegarLoop]: 110 mSDtfsCounter, 93 mSDsluCounter, 102 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 94 SdHoareTripleChecker+Valid, 212 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 07:01:43,120 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [94 Valid, 212 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 07:01:43,121 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 241 states. [2023-11-29 07:01:43,131 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 241 to 193. [2023-11-29 07:01:43,132 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 193 states, 142 states have (on average 1.647887323943662) internal successors, (234), 185 states have internal predecessors, (234), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2023-11-29 07:01:43,133 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 193 states to 193 states and 244 transitions. [2023-11-29 07:01:43,133 INFO L78 Accepts]: Start accepts. Automaton has 193 states and 244 transitions. Word has length 20 [2023-11-29 07:01:43,133 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 07:01:43,140 INFO L495 AbstractCegarLoop]: Abstraction has 193 states and 244 transitions. [2023-11-29 07:01:43,140 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 6.5) internal successors, (13), 3 states have internal predecessors, (13), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-29 07:01:43,140 INFO L276 IsEmpty]: Start isEmpty. Operand 193 states and 244 transitions. [2023-11-29 07:01:43,141 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2023-11-29 07:01:43,141 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 07:01:43,141 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 07:01:43,146 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2c6dc8-a580-46e1-b422-81b2f1468bab/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2023-11-29 07:01:43,345 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2c6dc8-a580-46e1-b422-81b2f1468bab/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2023-11-29 07:01:43,346 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2023-11-29 07:01:43,346 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 07:01:43,347 INFO L85 PathProgramCache]: Analyzing trace with hash 1674983122, now seen corresponding path program 1 times [2023-11-29 07:01:43,347 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 07:01:43,347 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1694792552] [2023-11-29 07:01:43,347 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:01:43,347 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 07:01:43,355 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 07:01:43,355 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1005130473] [2023-11-29 07:01:43,355 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:01:43,356 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 07:01:43,356 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2c6dc8-a580-46e1-b422-81b2f1468bab/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 07:01:43,357 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2c6dc8-a580-46e1-b422-81b2f1468bab/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 07:01:43,359 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2c6dc8-a580-46e1-b422-81b2f1468bab/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-29 07:01:43,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:01:43,403 INFO L262 TraceCheckSpWp]: Trace formula consists of 63 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-29 07:01:43,404 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 07:01:43,433 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-29 07:01:43,434 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 07:01:43,434 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 07:01:43,434 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1694792552] [2023-11-29 07:01:43,434 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 07:01:43,434 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1005130473] [2023-11-29 07:01:43,434 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1005130473] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 07:01:43,435 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 07:01:43,435 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 07:01:43,435 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [274858323] [2023-11-29 07:01:43,435 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 07:01:43,435 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 07:01:43,435 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 07:01:43,436 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 07:01:43,436 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-29 07:01:43,436 INFO L87 Difference]: Start difference. First operand 193 states and 244 transitions. Second operand has 4 states, 3 states have (on average 5.0) internal successors, (15), 4 states have internal predecessors, (15), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-29 07:01:43,592 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 07:01:43,592 INFO L93 Difference]: Finished difference Result 272 states and 315 transitions. [2023-11-29 07:01:43,593 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-29 07:01:43,593 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 5.0) internal successors, (15), 4 states have internal predecessors, (15), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 22 [2023-11-29 07:01:43,593 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 07:01:43,594 INFO L225 Difference]: With dead ends: 272 [2023-11-29 07:01:43,595 INFO L226 Difference]: Without dead ends: 270 [2023-11-29 07:01:43,595 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 19 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 07:01:43,596 INFO L413 NwaCegarLoop]: 73 mSDtfsCounter, 177 mSDsluCounter, 177 mSDsCounter, 0 mSdLazyCounter, 113 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 177 SdHoareTripleChecker+Valid, 250 SdHoareTripleChecker+Invalid, 119 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 113 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 07:01:43,596 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [177 Valid, 250 Invalid, 119 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 113 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 07:01:43,597 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 270 states. [2023-11-29 07:01:43,605 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 270 to 194. [2023-11-29 07:01:43,606 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 194 states, 143 states have (on average 1.6363636363636365) internal successors, (234), 186 states have internal predecessors, (234), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2023-11-29 07:01:43,607 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 194 states to 194 states and 244 transitions. [2023-11-29 07:01:43,607 INFO L78 Accepts]: Start accepts. Automaton has 194 states and 244 transitions. Word has length 22 [2023-11-29 07:01:43,607 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 07:01:43,607 INFO L495 AbstractCegarLoop]: Abstraction has 194 states and 244 transitions. [2023-11-29 07:01:43,608 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 5.0) internal successors, (15), 4 states have internal predecessors, (15), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-29 07:01:43,608 INFO L276 IsEmpty]: Start isEmpty. Operand 194 states and 244 transitions. [2023-11-29 07:01:43,608 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2023-11-29 07:01:43,608 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 07:01:43,608 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 07:01:43,613 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2c6dc8-a580-46e1-b422-81b2f1468bab/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2023-11-29 07:01:43,813 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2c6dc8-a580-46e1-b422-81b2f1468bab/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2023-11-29 07:01:43,813 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2023-11-29 07:01:43,814 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 07:01:43,814 INFO L85 PathProgramCache]: Analyzing trace with hash 384869294, now seen corresponding path program 1 times [2023-11-29 07:01:43,814 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 07:01:43,814 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1351405875] [2023-11-29 07:01:43,814 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:01:43,814 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 07:01:43,822 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 07:01:43,822 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1291611196] [2023-11-29 07:01:43,823 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:01:43,823 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 07:01:43,823 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2c6dc8-a580-46e1-b422-81b2f1468bab/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 07:01:43,824 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2c6dc8-a580-46e1-b422-81b2f1468bab/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 07:01:43,825 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2c6dc8-a580-46e1-b422-81b2f1468bab/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-11-29 07:01:43,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:01:43,868 INFO L262 TraceCheckSpWp]: Trace formula consists of 64 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-29 07:01:43,870 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 07:01:43,888 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-29 07:01:43,888 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 07:01:43,889 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 07:01:43,889 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1351405875] [2023-11-29 07:01:43,889 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 07:01:43,889 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1291611196] [2023-11-29 07:01:43,889 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1291611196] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 07:01:43,889 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 07:01:43,889 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 07:01:43,889 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1062752784] [2023-11-29 07:01:43,889 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 07:01:43,890 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 07:01:43,890 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 07:01:43,890 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 07:01:43,890 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-29 07:01:43,891 INFO L87 Difference]: Start difference. First operand 194 states and 244 transitions. Second operand has 4 states, 3 states have (on average 5.333333333333333) internal successors, (16), 4 states have internal predecessors, (16), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-29 07:01:44,031 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 07:01:44,031 INFO L93 Difference]: Finished difference Result 270 states and 313 transitions. [2023-11-29 07:01:44,032 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-29 07:01:44,032 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 5.333333333333333) internal successors, (16), 4 states have internal predecessors, (16), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 23 [2023-11-29 07:01:44,032 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 07:01:44,034 INFO L225 Difference]: With dead ends: 270 [2023-11-29 07:01:44,034 INFO L226 Difference]: Without dead ends: 268 [2023-11-29 07:01:44,034 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 20 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 07:01:44,035 INFO L413 NwaCegarLoop]: 75 mSDtfsCounter, 172 mSDsluCounter, 177 mSDsCounter, 0 mSdLazyCounter, 111 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 172 SdHoareTripleChecker+Valid, 252 SdHoareTripleChecker+Invalid, 117 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 111 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 07:01:44,035 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [172 Valid, 252 Invalid, 117 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 111 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 07:01:44,036 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 268 states. [2023-11-29 07:01:44,043 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 268 to 195. [2023-11-29 07:01:44,044 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 195 states, 144 states have (on average 1.625) internal successors, (234), 187 states have internal predecessors, (234), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2023-11-29 07:01:44,045 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 195 states to 195 states and 244 transitions. [2023-11-29 07:01:44,045 INFO L78 Accepts]: Start accepts. Automaton has 195 states and 244 transitions. Word has length 23 [2023-11-29 07:01:44,045 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 07:01:44,045 INFO L495 AbstractCegarLoop]: Abstraction has 195 states and 244 transitions. [2023-11-29 07:01:44,046 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 5.333333333333333) internal successors, (16), 4 states have internal predecessors, (16), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-29 07:01:44,046 INFO L276 IsEmpty]: Start isEmpty. Operand 195 states and 244 transitions. [2023-11-29 07:01:44,046 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2023-11-29 07:01:44,047 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 07:01:44,047 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 07:01:44,051 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2c6dc8-a580-46e1-b422-81b2f1468bab/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2023-11-29 07:01:44,250 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2c6dc8-a580-46e1-b422-81b2f1468bab/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 07:01:44,250 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2023-11-29 07:01:44,251 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 07:01:44,251 INFO L85 PathProgramCache]: Analyzing trace with hash -953953708, now seen corresponding path program 1 times [2023-11-29 07:01:44,251 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 07:01:44,251 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1545337348] [2023-11-29 07:01:44,251 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:01:44,251 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 07:01:44,258 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 07:01:44,258 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [809817846] [2023-11-29 07:01:44,259 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:01:44,259 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 07:01:44,259 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2c6dc8-a580-46e1-b422-81b2f1468bab/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 07:01:44,260 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2c6dc8-a580-46e1-b422-81b2f1468bab/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 07:01:44,261 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2c6dc8-a580-46e1-b422-81b2f1468bab/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-11-29 07:01:44,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:01:44,302 INFO L262 TraceCheckSpWp]: Trace formula consists of 65 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-29 07:01:44,303 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 07:01:44,323 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-29 07:01:44,323 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 07:01:44,323 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 07:01:44,324 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1545337348] [2023-11-29 07:01:44,324 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 07:01:44,324 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [809817846] [2023-11-29 07:01:44,324 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [809817846] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 07:01:44,324 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 07:01:44,324 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 07:01:44,324 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [573839321] [2023-11-29 07:01:44,324 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 07:01:44,325 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 07:01:44,325 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 07:01:44,325 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 07:01:44,325 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-29 07:01:44,325 INFO L87 Difference]: Start difference. First operand 195 states and 244 transitions. Second operand has 4 states, 3 states have (on average 5.666666666666667) internal successors, (17), 4 states have internal predecessors, (17), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-29 07:01:44,452 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 07:01:44,452 INFO L93 Difference]: Finished difference Result 257 states and 273 transitions. [2023-11-29 07:01:44,452 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-29 07:01:44,452 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 5.666666666666667) internal successors, (17), 4 states have internal predecessors, (17), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 24 [2023-11-29 07:01:44,453 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 07:01:44,454 INFO L225 Difference]: With dead ends: 257 [2023-11-29 07:01:44,454 INFO L226 Difference]: Without dead ends: 255 [2023-11-29 07:01:44,455 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 21 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 07:01:44,455 INFO L413 NwaCegarLoop]: 75 mSDtfsCounter, 194 mSDsluCounter, 176 mSDsCounter, 0 mSdLazyCounter, 114 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 194 SdHoareTripleChecker+Valid, 251 SdHoareTripleChecker+Invalid, 120 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 114 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 07:01:44,456 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [194 Valid, 251 Invalid, 120 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 114 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 07:01:44,456 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 255 states. [2023-11-29 07:01:44,465 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 255 to 195. [2023-11-29 07:01:44,466 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 195 states, 144 states have (on average 1.6041666666666667) internal successors, (231), 187 states have internal predecessors, (231), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2023-11-29 07:01:44,467 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 195 states to 195 states and 241 transitions. [2023-11-29 07:01:44,467 INFO L78 Accepts]: Start accepts. Automaton has 195 states and 241 transitions. Word has length 24 [2023-11-29 07:01:44,467 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 07:01:44,467 INFO L495 AbstractCegarLoop]: Abstraction has 195 states and 241 transitions. [2023-11-29 07:01:44,467 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 5.666666666666667) internal successors, (17), 4 states have internal predecessors, (17), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-29 07:01:44,467 INFO L276 IsEmpty]: Start isEmpty. Operand 195 states and 241 transitions. [2023-11-29 07:01:44,468 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2023-11-29 07:01:44,468 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 07:01:44,468 INFO L195 NwaCegarLoop]: trace histogram [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 07:01:44,473 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2c6dc8-a580-46e1-b422-81b2f1468bab/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2023-11-29 07:01:44,670 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2c6dc8-a580-46e1-b422-81b2f1468bab/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 07:01:44,670 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2023-11-29 07:01:44,671 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 07:01:44,671 INFO L85 PathProgramCache]: Analyzing trace with hash 492206192, now seen corresponding path program 1 times [2023-11-29 07:01:44,671 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 07:01:44,671 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [127479365] [2023-11-29 07:01:44,671 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:01:44,671 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 07:01:44,678 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 07:01:44,678 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2091379400] [2023-11-29 07:01:44,679 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:01:44,679 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 07:01:44,679 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2c6dc8-a580-46e1-b422-81b2f1468bab/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 07:01:44,680 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2c6dc8-a580-46e1-b422-81b2f1468bab/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 07:01:44,681 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2c6dc8-a580-46e1-b422-81b2f1468bab/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-11-29 07:01:44,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:01:44,724 INFO L262 TraceCheckSpWp]: Trace formula consists of 66 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-29 07:01:44,727 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 07:01:44,755 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-29 07:01:44,755 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 07:01:44,756 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 07:01:44,756 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [127479365] [2023-11-29 07:01:44,756 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 07:01:44,756 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2091379400] [2023-11-29 07:01:44,756 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2091379400] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 07:01:44,756 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 07:01:44,756 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 07:01:44,759 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [143097185] [2023-11-29 07:01:44,759 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 07:01:44,760 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 07:01:44,760 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 07:01:44,760 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 07:01:44,760 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-29 07:01:44,761 INFO L87 Difference]: Start difference. First operand 195 states and 241 transitions. Second operand has 4 states, 3 states have (on average 6.0) internal successors, (18), 4 states have internal predecessors, (18), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-29 07:01:44,885 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 07:01:44,885 INFO L93 Difference]: Finished difference Result 255 states and 270 transitions. [2023-11-29 07:01:44,885 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-29 07:01:44,885 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 6.0) internal successors, (18), 4 states have internal predecessors, (18), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 25 [2023-11-29 07:01:44,885 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 07:01:44,887 INFO L225 Difference]: With dead ends: 255 [2023-11-29 07:01:44,887 INFO L226 Difference]: Without dead ends: 253 [2023-11-29 07:01:44,887 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 22 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 07:01:44,888 INFO L413 NwaCegarLoop]: 81 mSDtfsCounter, 189 mSDsluCounter, 176 mSDsCounter, 0 mSdLazyCounter, 112 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 189 SdHoareTripleChecker+Valid, 257 SdHoareTripleChecker+Invalid, 118 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 112 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 07:01:44,888 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [189 Valid, 257 Invalid, 118 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 112 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 07:01:44,889 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 253 states. [2023-11-29 07:01:44,897 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 253 to 195. [2023-11-29 07:01:44,898 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 195 states, 144 states have (on average 1.5833333333333333) internal successors, (228), 187 states have internal predecessors, (228), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2023-11-29 07:01:44,899 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 195 states to 195 states and 238 transitions. [2023-11-29 07:01:44,899 INFO L78 Accepts]: Start accepts. Automaton has 195 states and 238 transitions. Word has length 25 [2023-11-29 07:01:44,899 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 07:01:44,899 INFO L495 AbstractCegarLoop]: Abstraction has 195 states and 238 transitions. [2023-11-29 07:01:44,899 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 6.0) internal successors, (18), 4 states have internal predecessors, (18), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-29 07:01:44,900 INFO L276 IsEmpty]: Start isEmpty. Operand 195 states and 238 transitions. [2023-11-29 07:01:44,900 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2023-11-29 07:01:44,900 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 07:01:44,900 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 07:01:44,905 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2c6dc8-a580-46e1-b422-81b2f1468bab/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2023-11-29 07:01:45,104 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2c6dc8-a580-46e1-b422-81b2f1468bab/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 07:01:45,105 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2023-11-29 07:01:45,105 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 07:01:45,105 INFO L85 PathProgramCache]: Analyzing trace with hash -1921477162, now seen corresponding path program 1 times [2023-11-29 07:01:45,105 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 07:01:45,105 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1568037181] [2023-11-29 07:01:45,106 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:01:45,106 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 07:01:45,112 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 07:01:45,112 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1893054085] [2023-11-29 07:01:45,112 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:01:45,112 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 07:01:45,113 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2c6dc8-a580-46e1-b422-81b2f1468bab/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 07:01:45,114 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2c6dc8-a580-46e1-b422-81b2f1468bab/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 07:01:45,117 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2c6dc8-a580-46e1-b422-81b2f1468bab/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-11-29 07:01:45,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:01:45,156 INFO L262 TraceCheckSpWp]: Trace formula consists of 67 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-29 07:01:45,157 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 07:01:45,189 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-29 07:01:45,189 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 07:01:45,189 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 07:01:45,190 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1568037181] [2023-11-29 07:01:45,201 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 07:01:45,201 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1893054085] [2023-11-29 07:01:45,202 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1893054085] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 07:01:45,202 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 07:01:45,202 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-29 07:01:45,202 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1298947513] [2023-11-29 07:01:45,202 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 07:01:45,202 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 07:01:45,203 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 07:01:45,203 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 07:01:45,203 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-29 07:01:45,203 INFO L87 Difference]: Start difference. First operand 195 states and 238 transitions. Second operand has 5 states, 4 states have (on average 4.75) internal successors, (19), 5 states have internal predecessors, (19), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-29 07:01:45,346 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 07:01:45,346 INFO L93 Difference]: Finished difference Result 264 states and 303 transitions. [2023-11-29 07:01:45,346 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-29 07:01:45,346 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 4.75) internal successors, (19), 5 states have internal predecessors, (19), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 26 [2023-11-29 07:01:45,347 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 07:01:45,348 INFO L225 Difference]: With dead ends: 264 [2023-11-29 07:01:45,348 INFO L226 Difference]: Without dead ends: 262 [2023-11-29 07:01:45,348 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2023-11-29 07:01:45,349 INFO L413 NwaCegarLoop]: 75 mSDtfsCounter, 233 mSDsluCounter, 178 mSDsCounter, 0 mSdLazyCounter, 118 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 233 SdHoareTripleChecker+Valid, 253 SdHoareTripleChecker+Invalid, 127 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 118 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 07:01:45,349 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [233 Valid, 253 Invalid, 127 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 118 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 07:01:45,350 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 262 states. [2023-11-29 07:01:45,358 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 262 to 198. [2023-11-29 07:01:45,358 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 198 states, 147 states have (on average 1.564625850340136) internal successors, (230), 190 states have internal predecessors, (230), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2023-11-29 07:01:45,359 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 198 states to 198 states and 240 transitions. [2023-11-29 07:01:45,360 INFO L78 Accepts]: Start accepts. Automaton has 198 states and 240 transitions. Word has length 26 [2023-11-29 07:01:45,360 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 07:01:45,360 INFO L495 AbstractCegarLoop]: Abstraction has 198 states and 240 transitions. [2023-11-29 07:01:45,360 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 4.75) internal successors, (19), 5 states have internal predecessors, (19), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-29 07:01:45,360 INFO L276 IsEmpty]: Start isEmpty. Operand 198 states and 240 transitions. [2023-11-29 07:01:45,361 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2023-11-29 07:01:45,361 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 07:01:45,361 INFO L195 NwaCegarLoop]: trace histogram [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 07:01:45,366 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2c6dc8-a580-46e1-b422-81b2f1468bab/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2023-11-29 07:01:45,565 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2c6dc8-a580-46e1-b422-81b2f1468bab/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 07:01:45,566 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2023-11-29 07:01:45,566 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 07:01:45,566 INFO L85 PathProgramCache]: Analyzing trace with hash 563750194, now seen corresponding path program 1 times [2023-11-29 07:01:45,566 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 07:01:45,566 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [4321530] [2023-11-29 07:01:45,566 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:01:45,566 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 07:01:45,572 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 07:01:45,572 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [690428480] [2023-11-29 07:01:45,572 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:01:45,573 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 07:01:45,573 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2c6dc8-a580-46e1-b422-81b2f1468bab/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 07:01:45,574 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2c6dc8-a580-46e1-b422-81b2f1468bab/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 07:01:45,575 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2c6dc8-a580-46e1-b422-81b2f1468bab/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2023-11-29 07:01:45,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:01:45,612 INFO L262 TraceCheckSpWp]: Trace formula consists of 68 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-29 07:01:45,613 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 07:01:45,672 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-29 07:01:45,673 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 07:01:45,673 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 07:01:45,673 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [4321530] [2023-11-29 07:01:45,673 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 07:01:45,673 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [690428480] [2023-11-29 07:01:45,673 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [690428480] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 07:01:45,673 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 07:01:45,673 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-29 07:01:45,674 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2118494375] [2023-11-29 07:01:45,674 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 07:01:45,674 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 07:01:45,674 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 07:01:45,675 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 07:01:45,675 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-29 07:01:45,675 INFO L87 Difference]: Start difference. First operand 198 states and 240 transitions. Second operand has 5 states, 4 states have (on average 5.0) internal successors, (20), 5 states have internal predecessors, (20), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-29 07:01:45,890 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 07:01:45,890 INFO L93 Difference]: Finished difference Result 266 states and 301 transitions. [2023-11-29 07:01:45,890 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-29 07:01:45,891 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 5.0) internal successors, (20), 5 states have internal predecessors, (20), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 27 [2023-11-29 07:01:45,891 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 07:01:45,892 INFO L225 Difference]: With dead ends: 266 [2023-11-29 07:01:45,893 INFO L226 Difference]: Without dead ends: 264 [2023-11-29 07:01:45,893 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-11-29 07:01:45,894 INFO L413 NwaCegarLoop]: 70 mSDtfsCounter, 238 mSDsluCounter, 214 mSDsCounter, 0 mSdLazyCounter, 205 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 238 SdHoareTripleChecker+Valid, 284 SdHoareTripleChecker+Invalid, 212 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 205 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-29 07:01:45,894 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [238 Valid, 284 Invalid, 212 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 205 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-29 07:01:45,895 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 264 states. [2023-11-29 07:01:45,903 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 264 to 199. [2023-11-29 07:01:45,903 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 199 states, 148 states have (on average 1.554054054054054) internal successors, (230), 191 states have internal predecessors, (230), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2023-11-29 07:01:45,904 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 199 states to 199 states and 240 transitions. [2023-11-29 07:01:45,904 INFO L78 Accepts]: Start accepts. Automaton has 199 states and 240 transitions. Word has length 27 [2023-11-29 07:01:45,905 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 07:01:45,905 INFO L495 AbstractCegarLoop]: Abstraction has 199 states and 240 transitions. [2023-11-29 07:01:45,905 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 5.0) internal successors, (20), 5 states have internal predecessors, (20), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-29 07:01:45,905 INFO L276 IsEmpty]: Start isEmpty. Operand 199 states and 240 transitions. [2023-11-29 07:01:45,905 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2023-11-29 07:01:45,905 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 07:01:45,906 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 07:01:45,910 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2c6dc8-a580-46e1-b422-81b2f1468bab/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2023-11-29 07:01:46,110 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2c6dc8-a580-46e1-b422-81b2f1468bab/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2023-11-29 07:01:46,110 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2023-11-29 07:01:46,110 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 07:01:46,111 INFO L85 PathProgramCache]: Analyzing trace with hash 296386904, now seen corresponding path program 1 times [2023-11-29 07:01:46,111 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 07:01:46,111 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [667387750] [2023-11-29 07:01:46,111 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:01:46,111 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 07:01:46,116 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 07:01:46,117 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1531621964] [2023-11-29 07:01:46,117 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:01:46,117 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 07:01:46,117 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2c6dc8-a580-46e1-b422-81b2f1468bab/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 07:01:46,118 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2c6dc8-a580-46e1-b422-81b2f1468bab/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 07:01:46,119 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2c6dc8-a580-46e1-b422-81b2f1468bab/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2023-11-29 07:01:46,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:01:46,160 INFO L262 TraceCheckSpWp]: Trace formula consists of 69 conjuncts, 12 conjunts are in the unsatisfiable core [2023-11-29 07:01:46,161 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 07:01:46,343 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-29 07:01:46,343 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 07:01:46,514 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-29 07:01:46,514 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 07:01:46,514 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [667387750] [2023-11-29 07:01:46,514 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 07:01:46,514 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1531621964] [2023-11-29 07:01:46,514 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1531621964] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 07:01:46,514 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 07:01:46,515 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 12 [2023-11-29 07:01:46,515 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1252754817] [2023-11-29 07:01:46,515 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 07:01:46,515 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-11-29 07:01:46,515 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 07:01:46,516 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-11-29 07:01:46,516 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2023-11-29 07:01:46,516 INFO L87 Difference]: Start difference. First operand 199 states and 240 transitions. Second operand has 13 states, 12 states have (on average 3.5833333333333335) internal successors, (43), 13 states have internal predecessors, (43), 3 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (4), 2 states have call predecessors, (4), 3 states have call successors, (4) [2023-11-29 07:01:47,024 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 07:01:47,024 INFO L93 Difference]: Finished difference Result 264 states and 299 transitions. [2023-11-29 07:01:47,025 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-29 07:01:47,025 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 3.5833333333333335) internal successors, (43), 13 states have internal predecessors, (43), 3 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (4), 2 states have call predecessors, (4), 3 states have call successors, (4) Word has length 28 [2023-11-29 07:01:47,025 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 07:01:47,026 INFO L225 Difference]: With dead ends: 264 [2023-11-29 07:01:47,027 INFO L226 Difference]: Without dead ends: 233 [2023-11-29 07:01:47,027 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=76, Invalid=230, Unknown=0, NotChecked=0, Total=306 [2023-11-29 07:01:47,028 INFO L413 NwaCegarLoop]: 68 mSDtfsCounter, 417 mSDsluCounter, 338 mSDsCounter, 0 mSdLazyCounter, 504 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 417 SdHoareTripleChecker+Valid, 406 SdHoareTripleChecker+Invalid, 517 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 504 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-29 07:01:47,028 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [417 Valid, 406 Invalid, 517 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 504 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-29 07:01:47,028 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 233 states. [2023-11-29 07:01:47,038 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 233 to 189. [2023-11-29 07:01:47,038 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 189 states, 138 states have (on average 1.5797101449275361) internal successors, (218), 181 states have internal predecessors, (218), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2023-11-29 07:01:47,042 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 189 states to 189 states and 228 transitions. [2023-11-29 07:01:47,042 INFO L78 Accepts]: Start accepts. Automaton has 189 states and 228 transitions. Word has length 28 [2023-11-29 07:01:47,042 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 07:01:47,042 INFO L495 AbstractCegarLoop]: Abstraction has 189 states and 228 transitions. [2023-11-29 07:01:47,043 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 3.5833333333333335) internal successors, (43), 13 states have internal predecessors, (43), 3 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (4), 2 states have call predecessors, (4), 3 states have call successors, (4) [2023-11-29 07:01:47,043 INFO L276 IsEmpty]: Start isEmpty. Operand 189 states and 228 transitions. [2023-11-29 07:01:47,043 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2023-11-29 07:01:47,043 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 07:01:47,044 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 07:01:47,048 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2c6dc8-a580-46e1-b422-81b2f1468bab/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2023-11-29 07:01:47,246 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2c6dc8-a580-46e1-b422-81b2f1468bab/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 07:01:47,246 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2023-11-29 07:01:47,247 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 07:01:47,247 INFO L85 PathProgramCache]: Analyzing trace with hash 598059508, now seen corresponding path program 1 times [2023-11-29 07:01:47,247 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 07:01:47,247 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1094614554] [2023-11-29 07:01:47,247 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:01:47,248 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 07:01:47,255 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 07:01:47,255 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [263029775] [2023-11-29 07:01:47,256 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:01:47,256 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 07:01:47,256 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2c6dc8-a580-46e1-b422-81b2f1468bab/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 07:01:47,257 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2c6dc8-a580-46e1-b422-81b2f1468bab/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 07:01:47,261 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2c6dc8-a580-46e1-b422-81b2f1468bab/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2023-11-29 07:01:47,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:01:47,301 INFO L262 TraceCheckSpWp]: Trace formula consists of 70 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-29 07:01:47,302 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 07:01:47,396 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-29 07:01:47,396 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 07:01:47,479 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-29 07:01:47,480 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 07:01:47,480 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1094614554] [2023-11-29 07:01:47,480 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 07:01:47,480 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [263029775] [2023-11-29 07:01:47,480 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [263029775] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 07:01:47,480 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 07:01:47,481 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2023-11-29 07:01:47,481 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1388127639] [2023-11-29 07:01:47,481 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 07:01:47,481 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-29 07:01:47,481 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 07:01:47,482 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-29 07:01:47,482 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2023-11-29 07:01:47,482 INFO L87 Difference]: Start difference. First operand 189 states and 228 transitions. Second operand has 9 states, 8 states have (on average 5.625) internal successors, (45), 9 states have internal predecessors, (45), 3 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (4), 2 states have call predecessors, (4), 3 states have call successors, (4) [2023-11-29 07:01:47,647 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 07:01:47,647 INFO L93 Difference]: Finished difference Result 189 states and 228 transitions. [2023-11-29 07:01:47,647 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-29 07:01:47,648 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 5.625) internal successors, (45), 9 states have internal predecessors, (45), 3 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (4), 2 states have call predecessors, (4), 3 states have call successors, (4) Word has length 29 [2023-11-29 07:01:47,648 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 07:01:47,649 INFO L225 Difference]: With dead ends: 189 [2023-11-29 07:01:47,649 INFO L226 Difference]: Without dead ends: 187 [2023-11-29 07:01:47,650 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2023-11-29 07:01:47,650 INFO L413 NwaCegarLoop]: 77 mSDtfsCounter, 112 mSDsluCounter, 186 mSDsCounter, 0 mSdLazyCounter, 208 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 113 SdHoareTripleChecker+Valid, 263 SdHoareTripleChecker+Invalid, 212 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 208 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 07:01:47,651 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [113 Valid, 263 Invalid, 212 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 208 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 07:01:47,651 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 187 states. [2023-11-29 07:01:47,661 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 187 to 187. [2023-11-29 07:01:47,661 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 187 states, 138 states have (on average 1.5434782608695652) internal successors, (213), 179 states have internal predecessors, (213), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2023-11-29 07:01:47,662 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 187 states to 187 states and 223 transitions. [2023-11-29 07:01:47,663 INFO L78 Accepts]: Start accepts. Automaton has 187 states and 223 transitions. Word has length 29 [2023-11-29 07:01:47,663 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 07:01:47,663 INFO L495 AbstractCegarLoop]: Abstraction has 187 states and 223 transitions. [2023-11-29 07:01:47,663 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 5.625) internal successors, (45), 9 states have internal predecessors, (45), 3 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (4), 2 states have call predecessors, (4), 3 states have call successors, (4) [2023-11-29 07:01:47,663 INFO L276 IsEmpty]: Start isEmpty. Operand 187 states and 223 transitions. [2023-11-29 07:01:47,664 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2023-11-29 07:01:47,664 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 07:01:47,664 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 07:01:47,669 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2c6dc8-a580-46e1-b422-81b2f1468bab/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2023-11-29 07:01:47,864 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2c6dc8-a580-46e1-b422-81b2f1468bab/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2023-11-29 07:01:47,865 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2023-11-29 07:01:47,865 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 07:01:47,865 INFO L85 PathProgramCache]: Analyzing trace with hash 1266536540, now seen corresponding path program 1 times [2023-11-29 07:01:47,865 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 07:01:47,865 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1121265295] [2023-11-29 07:01:47,865 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:01:47,865 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 07:01:47,872 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 07:01:47,872 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [64959357] [2023-11-29 07:01:47,872 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:01:47,872 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 07:01:47,872 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2c6dc8-a580-46e1-b422-81b2f1468bab/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 07:01:47,873 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2c6dc8-a580-46e1-b422-81b2f1468bab/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 07:01:47,874 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2c6dc8-a580-46e1-b422-81b2f1468bab/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2023-11-29 07:01:47,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:01:47,910 INFO L262 TraceCheckSpWp]: Trace formula consists of 73 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-29 07:01:47,912 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 07:01:48,010 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-29 07:01:48,010 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 07:01:48,010 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 07:01:48,010 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1121265295] [2023-11-29 07:01:48,011 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 07:01:48,011 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [64959357] [2023-11-29 07:01:48,011 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [64959357] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 07:01:48,011 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 07:01:48,011 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-29 07:01:48,011 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [592994320] [2023-11-29 07:01:48,011 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 07:01:48,012 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 07:01:48,012 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 07:01:48,012 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 07:01:48,013 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-11-29 07:01:48,013 INFO L87 Difference]: Start difference. First operand 187 states and 223 transitions. Second operand has 6 states, 5 states have (on average 5.6) internal successors, (28), 6 states have internal predecessors, (28), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-29 07:01:48,196 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 07:01:48,197 INFO L93 Difference]: Finished difference Result 187 states and 223 transitions. [2023-11-29 07:01:48,197 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-29 07:01:48,197 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 5.6) internal successors, (28), 6 states have internal predecessors, (28), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 32 [2023-11-29 07:01:48,197 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 07:01:48,199 INFO L225 Difference]: With dead ends: 187 [2023-11-29 07:01:48,199 INFO L226 Difference]: Without dead ends: 185 [2023-11-29 07:01:48,199 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2023-11-29 07:01:48,200 INFO L413 NwaCegarLoop]: 63 mSDtfsCounter, 144 mSDsluCounter, 127 mSDsCounter, 0 mSdLazyCounter, 221 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 145 SdHoareTripleChecker+Valid, 190 SdHoareTripleChecker+Invalid, 224 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 221 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-29 07:01:48,200 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [145 Valid, 190 Invalid, 224 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 221 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-29 07:01:48,201 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 185 states. [2023-11-29 07:01:48,208 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 185 to 185. [2023-11-29 07:01:48,209 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 185 states, 138 states have (on average 1.5072463768115942) internal successors, (208), 177 states have internal predecessors, (208), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2023-11-29 07:01:48,210 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 185 states to 185 states and 218 transitions. [2023-11-29 07:01:48,210 INFO L78 Accepts]: Start accepts. Automaton has 185 states and 218 transitions. Word has length 32 [2023-11-29 07:01:48,210 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 07:01:48,210 INFO L495 AbstractCegarLoop]: Abstraction has 185 states and 218 transitions. [2023-11-29 07:01:48,211 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 5.6) internal successors, (28), 6 states have internal predecessors, (28), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-29 07:01:48,211 INFO L276 IsEmpty]: Start isEmpty. Operand 185 states and 218 transitions. [2023-11-29 07:01:48,211 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2023-11-29 07:01:48,211 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 07:01:48,212 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 07:01:48,218 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2c6dc8-a580-46e1-b422-81b2f1468bab/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2023-11-29 07:01:48,418 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15,12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2c6dc8-a580-46e1-b422-81b2f1468bab/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 07:01:48,418 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2023-11-29 07:01:48,418 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 07:01:48,419 INFO L85 PathProgramCache]: Analyzing trace with hash 607927160, now seen corresponding path program 1 times [2023-11-29 07:01:48,419 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 07:01:48,419 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [974719299] [2023-11-29 07:01:48,419 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:01:48,419 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 07:01:48,425 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 07:01:48,425 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1380981422] [2023-11-29 07:01:48,425 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:01:48,425 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 07:01:48,426 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2c6dc8-a580-46e1-b422-81b2f1468bab/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 07:01:48,426 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2c6dc8-a580-46e1-b422-81b2f1468bab/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 07:01:48,429 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2c6dc8-a580-46e1-b422-81b2f1468bab/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2023-11-29 07:01:48,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:01:48,466 INFO L262 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 17 conjunts are in the unsatisfiable core [2023-11-29 07:01:48,468 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 07:01:48,781 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-29 07:01:48,781 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 07:01:48,781 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 07:01:48,781 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [974719299] [2023-11-29 07:01:48,781 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 07:01:48,781 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1380981422] [2023-11-29 07:01:48,782 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1380981422] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 07:01:48,782 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 07:01:48,782 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-11-29 07:01:48,782 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [372288794] [2023-11-29 07:01:48,782 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 07:01:48,782 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-29 07:01:48,783 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 07:01:48,783 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-29 07:01:48,783 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2023-11-29 07:01:48,784 INFO L87 Difference]: Start difference. First operand 185 states and 218 transitions. Second operand has 9 states, 8 states have (on average 3.25) internal successors, (26), 9 states have internal predecessors, (26), 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 07:01:49,156 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 07:01:49,156 INFO L93 Difference]: Finished difference Result 227 states and 258 transitions. [2023-11-29 07:01:49,156 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-29 07:01:49,156 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.25) internal successors, (26), 9 states have internal predecessors, (26), 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 07:01:49,156 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 07:01:49,158 INFO L225 Difference]: With dead ends: 227 [2023-11-29 07:01:49,158 INFO L226 Difference]: Without dead ends: 226 [2023-11-29 07:01:49,158 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=47, Invalid=109, Unknown=0, NotChecked=0, Total=156 [2023-11-29 07:01:49,158 INFO L413 NwaCegarLoop]: 48 mSDtfsCounter, 246 mSDsluCounter, 184 mSDsCounter, 0 mSdLazyCounter, 474 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 247 SdHoareTripleChecker+Valid, 232 SdHoareTripleChecker+Invalid, 477 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 474 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-29 07:01:49,159 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [247 Valid, 232 Invalid, 477 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 474 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-29 07:01:49,159 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 226 states. [2023-11-29 07:01:49,166 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 226 to 185. [2023-11-29 07:01:49,167 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 185 states, 138 states have (on average 1.5) internal successors, (207), 177 states have internal predecessors, (207), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2023-11-29 07:01:49,168 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 185 states to 185 states and 217 transitions. [2023-11-29 07:01:49,168 INFO L78 Accepts]: Start accepts. Automaton has 185 states and 217 transitions. Word has length 33 [2023-11-29 07:01:49,168 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 07:01:49,168 INFO L495 AbstractCegarLoop]: Abstraction has 185 states and 217 transitions. [2023-11-29 07:01:49,168 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.25) internal successors, (26), 9 states have internal predecessors, (26), 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 07:01:49,168 INFO L276 IsEmpty]: Start isEmpty. Operand 185 states and 217 transitions. [2023-11-29 07:01:49,169 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2023-11-29 07:01:49,169 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 07:01:49,169 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 07:01:49,174 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2c6dc8-a580-46e1-b422-81b2f1468bab/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2023-11-29 07:01:49,369 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2c6dc8-a580-46e1-b422-81b2f1468bab/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2023-11-29 07:01:49,369 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2023-11-29 07:01:49,370 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 07:01:49,370 INFO L85 PathProgramCache]: Analyzing trace with hash 1665872862, now seen corresponding path program 1 times [2023-11-29 07:01:49,370 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 07:01:49,370 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2103377138] [2023-11-29 07:01:49,370 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:01:49,370 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 07:01:49,374 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 07:01:49,374 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1003676399] [2023-11-29 07:01:49,374 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:01:49,375 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 07:01:49,375 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2c6dc8-a580-46e1-b422-81b2f1468bab/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 07:01:49,375 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2c6dc8-a580-46e1-b422-81b2f1468bab/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 07:01:49,377 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2c6dc8-a580-46e1-b422-81b2f1468bab/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2023-11-29 07:01:49,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:01:49,414 INFO L262 TraceCheckSpWp]: Trace formula consists of 75 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-29 07:01:49,415 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 07:01:49,465 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-29 07:01:49,465 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 07:01:49,465 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 07:01:49,465 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2103377138] [2023-11-29 07:01:49,465 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 07:01:49,466 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1003676399] [2023-11-29 07:01:49,466 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1003676399] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 07:01:49,466 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 07:01:49,466 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 07:01:49,466 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1708246250] [2023-11-29 07:01:49,466 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 07:01:49,466 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 07:01:49,466 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 07:01:49,466 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 07:01:49,467 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-29 07:01:49,467 INFO L87 Difference]: Start difference. First operand 185 states and 217 transitions. Second operand has 4 states, 3 states have (on average 9.0) internal successors, (27), 4 states have internal predecessors, (27), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-29 07:01:49,584 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 07:01:49,584 INFO L93 Difference]: Finished difference Result 202 states and 233 transitions. [2023-11-29 07:01:49,585 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 07:01:49,585 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 9.0) internal successors, (27), 4 states have internal predecessors, (27), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 34 [2023-11-29 07:01:49,585 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 07:01:49,586 INFO L225 Difference]: With dead ends: 202 [2023-11-29 07:01:49,586 INFO L226 Difference]: Without dead ends: 201 [2023-11-29 07:01:49,587 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-29 07:01:49,587 INFO L413 NwaCegarLoop]: 85 mSDtfsCounter, 36 mSDsluCounter, 55 mSDsCounter, 0 mSdLazyCounter, 103 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 37 SdHoareTripleChecker+Valid, 140 SdHoareTripleChecker+Invalid, 104 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 103 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 07:01:49,588 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [37 Valid, 140 Invalid, 104 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 103 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 07:01:49,588 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 201 states. [2023-11-29 07:01:49,596 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 201 to 185. [2023-11-29 07:01:49,597 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 185 states, 138 states have (on average 1.4927536231884058) internal successors, (206), 177 states have internal predecessors, (206), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2023-11-29 07:01:49,598 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 185 states to 185 states and 216 transitions. [2023-11-29 07:01:49,598 INFO L78 Accepts]: Start accepts. Automaton has 185 states and 216 transitions. Word has length 34 [2023-11-29 07:01:49,598 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 07:01:49,598 INFO L495 AbstractCegarLoop]: Abstraction has 185 states and 216 transitions. [2023-11-29 07:01:49,599 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 9.0) internal successors, (27), 4 states have internal predecessors, (27), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-29 07:01:49,599 INFO L276 IsEmpty]: Start isEmpty. Operand 185 states and 216 transitions. [2023-11-29 07:01:49,599 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2023-11-29 07:01:49,600 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 07:01:49,600 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 07:01:49,605 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2c6dc8-a580-46e1-b422-81b2f1468bab/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2023-11-29 07:01:49,801 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2c6dc8-a580-46e1-b422-81b2f1468bab/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2023-11-29 07:01:49,801 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2023-11-29 07:01:49,802 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 07:01:49,802 INFO L85 PathProgramCache]: Analyzing trace with hash 102451258, now seen corresponding path program 1 times [2023-11-29 07:01:49,802 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 07:01:49,802 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1113218434] [2023-11-29 07:01:49,802 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:01:49,802 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 07:01:49,807 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 07:01:49,807 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1910381480] [2023-11-29 07:01:49,807 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:01:49,807 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 07:01:49,807 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2c6dc8-a580-46e1-b422-81b2f1468bab/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 07:01:49,808 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2c6dc8-a580-46e1-b422-81b2f1468bab/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 07:01:49,810 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2c6dc8-a580-46e1-b422-81b2f1468bab/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2023-11-29 07:01:49,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:01:49,845 INFO L262 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-29 07:01:49,846 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 07:01:49,905 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-29 07:01:49,905 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 07:01:49,905 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 07:01:49,905 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1113218434] [2023-11-29 07:01:49,905 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 07:01:49,905 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1910381480] [2023-11-29 07:01:49,905 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1910381480] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 07:01:49,906 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 07:01:49,906 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 07:01:49,906 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [770267219] [2023-11-29 07:01:49,906 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 07:01:49,906 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 07:01:49,906 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 07:01:49,907 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 07:01:49,907 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-29 07:01:49,907 INFO L87 Difference]: Start difference. First operand 185 states and 216 transitions. Second operand has 4 states, 3 states have (on average 9.333333333333334) internal successors, (28), 4 states have internal predecessors, (28), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-29 07:01:50,073 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 07:01:50,074 INFO L93 Difference]: Finished difference Result 201 states and 232 transitions. [2023-11-29 07:01:50,074 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 07:01:50,074 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 9.333333333333334) internal successors, (28), 4 states have internal predecessors, (28), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 35 [2023-11-29 07:01:50,074 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 07:01:50,075 INFO L225 Difference]: With dead ends: 201 [2023-11-29 07:01:50,076 INFO L226 Difference]: Without dead ends: 200 [2023-11-29 07:01:50,076 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 32 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 07:01:50,077 INFO L413 NwaCegarLoop]: 87 mSDtfsCounter, 16 mSDsluCounter, 83 mSDsCounter, 0 mSdLazyCounter, 180 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 170 SdHoareTripleChecker+Invalid, 180 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 180 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-29 07:01:50,077 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 170 Invalid, 180 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 180 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-29 07:01:50,078 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 200 states. [2023-11-29 07:01:50,083 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 200 to 185. [2023-11-29 07:01:50,084 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 185 states, 138 states have (on average 1.4855072463768115) internal successors, (205), 177 states have internal predecessors, (205), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2023-11-29 07:01:50,084 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 185 states to 185 states and 215 transitions. [2023-11-29 07:01:50,085 INFO L78 Accepts]: Start accepts. Automaton has 185 states and 215 transitions. Word has length 35 [2023-11-29 07:01:50,085 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 07:01:50,085 INFO L495 AbstractCegarLoop]: Abstraction has 185 states and 215 transitions. [2023-11-29 07:01:50,085 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 9.333333333333334) internal successors, (28), 4 states have internal predecessors, (28), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-29 07:01:50,085 INFO L276 IsEmpty]: Start isEmpty. Operand 185 states and 215 transitions. [2023-11-29 07:01:50,086 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2023-11-29 07:01:50,086 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 07:01:50,086 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 07:01:50,090 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2c6dc8-a580-46e1-b422-81b2f1468bab/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Ended with exit code 0 [2023-11-29 07:01:50,290 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2c6dc8-a580-46e1-b422-81b2f1468bab/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 07:01:50,290 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2023-11-29 07:01:50,290 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 07:01:50,291 INFO L85 PathProgramCache]: Analyzing trace with hash -1145505025, now seen corresponding path program 1 times [2023-11-29 07:01:50,291 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 07:01:50,291 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [393996306] [2023-11-29 07:01:50,291 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:01:50,291 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 07:01:50,296 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 07:01:50,297 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [968317120] [2023-11-29 07:01:50,297 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:01:50,297 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 07:01:50,297 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2c6dc8-a580-46e1-b422-81b2f1468bab/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 07:01:50,298 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2c6dc8-a580-46e1-b422-81b2f1468bab/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 07:01:50,299 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2c6dc8-a580-46e1-b422-81b2f1468bab/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2023-11-29 07:01:50,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:01:50,335 INFO L262 TraceCheckSpWp]: Trace formula consists of 90 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-29 07:01:50,336 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 07:01:50,445 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-29 07:01:50,445 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 07:01:50,445 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 07:01:50,445 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [393996306] [2023-11-29 07:01:50,445 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 07:01:50,445 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [968317120] [2023-11-29 07:01:50,445 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [968317120] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 07:01:50,446 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 07:01:50,446 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-29 07:01:50,446 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1485260475] [2023-11-29 07:01:50,446 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 07:01:50,446 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 07:01:50,446 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 07:01:50,447 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 07:01:50,447 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-29 07:01:50,447 INFO L87 Difference]: Start difference. First operand 185 states and 215 transitions. Second operand has 5 states, 4 states have (on average 9.0) internal successors, (36), 5 states have internal predecessors, (36), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-11-29 07:01:50,566 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 07:01:50,567 INFO L93 Difference]: Finished difference Result 200 states and 231 transitions. [2023-11-29 07:01:50,567 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-29 07:01:50,567 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 9.0) internal successors, (36), 5 states have internal predecessors, (36), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Word has length 45 [2023-11-29 07:01:50,567 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 07:01:50,568 INFO L225 Difference]: With dead ends: 200 [2023-11-29 07:01:50,568 INFO L226 Difference]: Without dead ends: 198 [2023-11-29 07:01:50,569 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2023-11-29 07:01:50,569 INFO L413 NwaCegarLoop]: 55 mSDtfsCounter, 277 mSDsluCounter, 61 mSDsCounter, 0 mSdLazyCounter, 128 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 278 SdHoareTripleChecker+Valid, 116 SdHoareTripleChecker+Invalid, 132 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 128 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 07:01:50,570 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [278 Valid, 116 Invalid, 132 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 128 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 07:01:50,570 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 198 states. [2023-11-29 07:01:50,575 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 198 to 194. [2023-11-29 07:01:50,576 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 194 states, 147 states have (on average 1.4625850340136055) internal successors, (215), 186 states have internal predecessors, (215), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2023-11-29 07:01:50,577 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 194 states to 194 states and 225 transitions. [2023-11-29 07:01:50,577 INFO L78 Accepts]: Start accepts. Automaton has 194 states and 225 transitions. Word has length 45 [2023-11-29 07:01:50,577 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 07:01:50,577 INFO L495 AbstractCegarLoop]: Abstraction has 194 states and 225 transitions. [2023-11-29 07:01:50,577 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 9.0) internal successors, (36), 5 states have internal predecessors, (36), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-11-29 07:01:50,578 INFO L276 IsEmpty]: Start isEmpty. Operand 194 states and 225 transitions. [2023-11-29 07:01:50,578 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2023-11-29 07:01:50,578 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 07:01:50,579 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 07:01:50,583 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2c6dc8-a580-46e1-b422-81b2f1468bab/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Ended with exit code 0 [2023-11-29 07:01:50,779 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2c6dc8-a580-46e1-b422-81b2f1468bab/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 07:01:50,779 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2023-11-29 07:01:50,779 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 07:01:50,780 INFO L85 PathProgramCache]: Analyzing trace with hash -1150917302, now seen corresponding path program 1 times [2023-11-29 07:01:50,780 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 07:01:50,780 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1506784457] [2023-11-29 07:01:50,780 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:01:50,780 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 07:01:50,785 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 07:01:50,786 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [185657920] [2023-11-29 07:01:50,786 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:01:50,786 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 07:01:50,786 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2c6dc8-a580-46e1-b422-81b2f1468bab/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 07:01:50,787 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2c6dc8-a580-46e1-b422-81b2f1468bab/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 07:01:50,789 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2c6dc8-a580-46e1-b422-81b2f1468bab/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2023-11-29 07:01:50,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:01:50,829 INFO L262 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-29 07:01:50,830 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 07:01:50,890 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-29 07:01:50,891 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 07:01:50,891 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 07:01:50,891 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1506784457] [2023-11-29 07:01:50,891 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 07:01:50,891 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [185657920] [2023-11-29 07:01:50,891 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [185657920] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 07:01:50,891 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 07:01:50,891 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-29 07:01:50,892 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2143389308] [2023-11-29 07:01:50,892 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 07:01:50,892 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 07:01:50,892 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 07:01:50,892 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 07:01:50,893 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-29 07:01:50,893 INFO L87 Difference]: Start difference. First operand 194 states and 225 transitions. Second operand has 5 states, 4 states have (on average 9.25) internal successors, (37), 5 states have internal predecessors, (37), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-11-29 07:01:51,021 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 07:01:51,022 INFO L93 Difference]: Finished difference Result 198 states and 229 transitions. [2023-11-29 07:01:51,022 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-29 07:01:51,022 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 9.25) internal successors, (37), 5 states have internal predecessors, (37), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 46 [2023-11-29 07:01:51,022 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 07:01:51,023 INFO L225 Difference]: With dead ends: 198 [2023-11-29 07:01:51,024 INFO L226 Difference]: Without dead ends: 197 [2023-11-29 07:01:51,024 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2023-11-29 07:01:51,024 INFO L413 NwaCegarLoop]: 67 mSDtfsCounter, 140 mSDsluCounter, 116 mSDsCounter, 0 mSdLazyCounter, 176 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 141 SdHoareTripleChecker+Valid, 183 SdHoareTripleChecker+Invalid, 177 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 176 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 07:01:51,025 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [141 Valid, 183 Invalid, 177 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 176 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 07:01:51,026 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 197 states. [2023-11-29 07:01:51,033 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 197 to 195. [2023-11-29 07:01:51,034 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 195 states, 148 states have (on average 1.4594594594594594) internal successors, (216), 187 states have internal predecessors, (216), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2023-11-29 07:01:51,035 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 195 states to 195 states and 226 transitions. [2023-11-29 07:01:51,035 INFO L78 Accepts]: Start accepts. Automaton has 195 states and 226 transitions. Word has length 46 [2023-11-29 07:01:51,035 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 07:01:51,035 INFO L495 AbstractCegarLoop]: Abstraction has 195 states and 226 transitions. [2023-11-29 07:01:51,036 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 9.25) internal successors, (37), 5 states have internal predecessors, (37), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-11-29 07:01:51,036 INFO L276 IsEmpty]: Start isEmpty. Operand 195 states and 226 transitions. [2023-11-29 07:01:51,036 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2023-11-29 07:01:51,036 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 07:01:51,036 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 07:01:51,042 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2c6dc8-a580-46e1-b422-81b2f1468bab/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Forceful destruction successful, exit code 0 [2023-11-29 07:01:51,237 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2c6dc8-a580-46e1-b422-81b2f1468bab/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable20 [2023-11-29 07:01:51,237 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr34ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2023-11-29 07:01:51,237 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 07:01:51,237 INFO L85 PathProgramCache]: Analyzing trace with hash 2070039148, now seen corresponding path program 1 times [2023-11-29 07:01:51,237 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 07:01:51,238 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [885881932] [2023-11-29 07:01:51,238 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:01:51,238 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 07:01:51,244 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 07:01:51,244 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2141139611] [2023-11-29 07:01:51,244 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:01:51,244 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 07:01:51,244 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2c6dc8-a580-46e1-b422-81b2f1468bab/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 07:01:51,245 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2c6dc8-a580-46e1-b422-81b2f1468bab/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 07:01:51,246 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2c6dc8-a580-46e1-b422-81b2f1468bab/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2023-11-29 07:01:51,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:01:51,286 INFO L262 TraceCheckSpWp]: Trace formula consists of 96 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-29 07:01:51,287 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 07:01:51,332 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-29 07:01:51,332 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 07:01:51,332 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 07:01:51,332 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [885881932] [2023-11-29 07:01:51,332 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 07:01:51,332 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2141139611] [2023-11-29 07:01:51,333 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2141139611] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 07:01:51,333 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 07:01:51,333 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 07:01:51,333 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [918576815] [2023-11-29 07:01:51,333 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 07:01:51,333 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 07:01:51,333 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 07:01:51,334 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 07:01:51,334 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-29 07:01:51,334 INFO L87 Difference]: Start difference. First operand 195 states and 226 transitions. Second operand has 4 states, 3 states have (on average 13.0) internal successors, (39), 4 states have internal predecessors, (39), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-11-29 07:01:51,371 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 07:01:51,371 INFO L93 Difference]: Finished difference Result 195 states and 226 transitions. [2023-11-29 07:01:51,373 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 07:01:51,374 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 13.0) internal successors, (39), 4 states have internal predecessors, (39), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 48 [2023-11-29 07:01:51,374 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 07:01:51,375 INFO L225 Difference]: With dead ends: 195 [2023-11-29 07:01:51,375 INFO L226 Difference]: Without dead ends: 194 [2023-11-29 07:01:51,376 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 45 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 07:01:51,376 INFO L413 NwaCegarLoop]: 97 mSDtfsCounter, 74 mSDsluCounter, 112 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 74 SdHoareTripleChecker+Valid, 209 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 07:01:51,377 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [74 Valid, 209 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 07:01:51,377 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 194 states. [2023-11-29 07:01:51,385 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 194 to 194. [2023-11-29 07:01:51,385 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 194 states, 148 states have (on average 1.445945945945946) internal successors, (214), 186 states have internal predecessors, (214), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2023-11-29 07:01:51,386 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 194 states to 194 states and 224 transitions. [2023-11-29 07:01:51,387 INFO L78 Accepts]: Start accepts. Automaton has 194 states and 224 transitions. Word has length 48 [2023-11-29 07:01:51,387 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 07:01:51,387 INFO L495 AbstractCegarLoop]: Abstraction has 194 states and 224 transitions. [2023-11-29 07:01:51,387 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 13.0) internal successors, (39), 4 states have internal predecessors, (39), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-11-29 07:01:51,387 INFO L276 IsEmpty]: Start isEmpty. Operand 194 states and 224 transitions. [2023-11-29 07:01:51,388 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2023-11-29 07:01:51,388 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 07:01:51,388 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 07:01:51,393 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2c6dc8-a580-46e1-b422-81b2f1468bab/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Ended with exit code 0 [2023-11-29 07:01:51,590 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2c6dc8-a580-46e1-b422-81b2f1468bab/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable21 [2023-11-29 07:01:51,590 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr31ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2023-11-29 07:01:51,590 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 07:01:51,591 INFO L85 PathProgramCache]: Analyzing trace with hash -1643991946, now seen corresponding path program 1 times [2023-11-29 07:01:51,591 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 07:01:51,591 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [626870118] [2023-11-29 07:01:51,591 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:01:51,591 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 07:01:51,595 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 07:01:51,596 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [167138562] [2023-11-29 07:01:51,596 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:01:51,596 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 07:01:51,596 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2c6dc8-a580-46e1-b422-81b2f1468bab/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 07:01:51,597 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2c6dc8-a580-46e1-b422-81b2f1468bab/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 07:01:51,597 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2c6dc8-a580-46e1-b422-81b2f1468bab/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2023-11-29 07:01:51,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:01:51,631 INFO L262 TraceCheckSpWp]: Trace formula consists of 93 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-29 07:01:51,633 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 07:01:51,791 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-29 07:01:51,791 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 07:01:51,792 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 07:01:51,792 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [626870118] [2023-11-29 07:01:51,792 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 07:01:51,792 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [167138562] [2023-11-29 07:01:51,792 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [167138562] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 07:01:51,792 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 07:01:51,792 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-29 07:01:51,792 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [480837368] [2023-11-29 07:01:51,792 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 07:01:51,793 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 07:01:51,793 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 07:01:51,793 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 07:01:51,793 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2023-11-29 07:01:51,793 INFO L87 Difference]: Start difference. First operand 194 states and 224 transitions. Second operand has 5 states, 4 states have (on average 9.75) internal successors, (39), 5 states have internal predecessors, (39), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-11-29 07:01:51,901 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 07:01:51,901 INFO L93 Difference]: Finished difference Result 196 states and 226 transitions. [2023-11-29 07:01:51,901 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-29 07:01:51,901 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 9.75) internal successors, (39), 5 states have internal predecessors, (39), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Word has length 48 [2023-11-29 07:01:51,902 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 07:01:51,903 INFO L225 Difference]: With dead ends: 196 [2023-11-29 07:01:51,903 INFO L226 Difference]: Without dead ends: 195 [2023-11-29 07:01:51,903 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2023-11-29 07:01:51,904 INFO L413 NwaCegarLoop]: 54 mSDtfsCounter, 108 mSDsluCounter, 59 mSDsCounter, 0 mSdLazyCounter, 127 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 109 SdHoareTripleChecker+Valid, 113 SdHoareTripleChecker+Invalid, 127 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 127 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 07:01:51,904 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [109 Valid, 113 Invalid, 127 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 127 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 07:01:51,904 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 195 states. [2023-11-29 07:01:51,909 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 195 to 195. [2023-11-29 07:01:51,910 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 195 states, 149 states have (on average 1.4429530201342282) internal successors, (215), 187 states have internal predecessors, (215), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2023-11-29 07:01:51,910 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 195 states to 195 states and 225 transitions. [2023-11-29 07:01:51,910 INFO L78 Accepts]: Start accepts. Automaton has 195 states and 225 transitions. Word has length 48 [2023-11-29 07:01:51,911 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 07:01:51,911 INFO L495 AbstractCegarLoop]: Abstraction has 195 states and 225 transitions. [2023-11-29 07:01:51,911 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 9.75) internal successors, (39), 5 states have internal predecessors, (39), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-11-29 07:01:51,911 INFO L276 IsEmpty]: Start isEmpty. Operand 195 states and 225 transitions. [2023-11-29 07:01:51,911 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2023-11-29 07:01:51,911 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 07:01:51,911 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 07:01:51,915 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2c6dc8-a580-46e1-b422-81b2f1468bab/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Ended with exit code 0 [2023-11-29 07:01:52,112 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2c6dc8-a580-46e1-b422-81b2f1468bab/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable22 [2023-11-29 07:01:52,112 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr35ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2023-11-29 07:01:52,112 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 07:01:52,112 INFO L85 PathProgramCache]: Analyzing trace with hash -253295723, now seen corresponding path program 1 times [2023-11-29 07:01:52,112 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 07:01:52,112 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1307727578] [2023-11-29 07:01:52,113 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:01:52,113 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 07:01:52,117 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 07:01:52,118 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1492205297] [2023-11-29 07:01:52,118 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:01:52,118 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 07:01:52,118 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2c6dc8-a580-46e1-b422-81b2f1468bab/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 07:01:52,119 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2c6dc8-a580-46e1-b422-81b2f1468bab/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 07:01:52,122 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2c6dc8-a580-46e1-b422-81b2f1468bab/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2023-11-29 07:01:52,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:01:52,159 INFO L262 TraceCheckSpWp]: Trace formula consists of 97 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-29 07:01:52,160 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 07:01:52,190 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-29 07:01:52,190 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 07:01:52,190 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 07:01:52,190 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1307727578] [2023-11-29 07:01:52,190 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 07:01:52,190 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1492205297] [2023-11-29 07:01:52,190 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1492205297] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 07:01:52,190 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 07:01:52,191 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 07:01:52,191 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1972686714] [2023-11-29 07:01:52,191 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 07:01:52,191 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 07:01:52,191 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 07:01:52,192 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 07:01:52,192 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-29 07:01:52,192 INFO L87 Difference]: Start difference. First operand 195 states and 225 transitions. Second operand has 4 states, 3 states have (on average 13.333333333333334) internal successors, (40), 4 states have internal predecessors, (40), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-11-29 07:01:52,225 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 07:01:52,225 INFO L93 Difference]: Finished difference Result 206 states and 237 transitions. [2023-11-29 07:01:52,225 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 07:01:52,225 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 13.333333333333334) internal successors, (40), 4 states have internal predecessors, (40), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 49 [2023-11-29 07:01:52,225 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 07:01:52,227 INFO L225 Difference]: With dead ends: 206 [2023-11-29 07:01:52,227 INFO L226 Difference]: Without dead ends: 205 [2023-11-29 07:01:52,227 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 46 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 07:01:52,227 INFO L413 NwaCegarLoop]: 109 mSDtfsCounter, 13 mSDsluCounter, 206 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 315 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 07:01:52,228 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 315 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 07:01:52,228 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 205 states. [2023-11-29 07:01:52,236 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 205 to 203. [2023-11-29 07:01:52,236 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 203 states, 157 states have (on average 1.4331210191082802) internal successors, (225), 195 states have internal predecessors, (225), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2023-11-29 07:01:52,237 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 203 states to 203 states and 235 transitions. [2023-11-29 07:01:52,237 INFO L78 Accepts]: Start accepts. Automaton has 203 states and 235 transitions. Word has length 49 [2023-11-29 07:01:52,238 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 07:01:52,238 INFO L495 AbstractCegarLoop]: Abstraction has 203 states and 235 transitions. [2023-11-29 07:01:52,238 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 13.333333333333334) internal successors, (40), 4 states have internal predecessors, (40), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-11-29 07:01:52,238 INFO L276 IsEmpty]: Start isEmpty. Operand 203 states and 235 transitions. [2023-11-29 07:01:52,238 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2023-11-29 07:01:52,238 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 07:01:52,238 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 07:01:52,243 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2c6dc8-a580-46e1-b422-81b2f1468bab/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Ended with exit code 0 [2023-11-29 07:01:52,439 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2c6dc8-a580-46e1-b422-81b2f1468bab/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable23 [2023-11-29 07:01:52,439 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr32ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2023-11-29 07:01:52,439 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 07:01:52,439 INFO L85 PathProgramCache]: Analyzing trace with hash 575857347, now seen corresponding path program 1 times [2023-11-29 07:01:52,439 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 07:01:52,440 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [248071597] [2023-11-29 07:01:52,440 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:01:52,440 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 07:01:52,445 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 07:01:52,445 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [195579553] [2023-11-29 07:01:52,445 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:01:52,446 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 07:01:52,446 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2c6dc8-a580-46e1-b422-81b2f1468bab/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 07:01:52,446 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2c6dc8-a580-46e1-b422-81b2f1468bab/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 07:01:52,447 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2c6dc8-a580-46e1-b422-81b2f1468bab/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2023-11-29 07:01:52,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:01:52,486 INFO L262 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-29 07:01:52,487 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 07:01:52,518 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-29 07:01:52,518 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 07:01:52,518 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 07:01:52,518 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [248071597] [2023-11-29 07:01:52,519 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 07:01:52,519 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [195579553] [2023-11-29 07:01:52,519 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [195579553] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 07:01:52,519 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 07:01:52,519 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 07:01:52,519 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1847315852] [2023-11-29 07:01:52,519 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 07:01:52,519 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 07:01:52,519 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 07:01:52,520 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 07:01:52,520 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-29 07:01:52,520 INFO L87 Difference]: Start difference. First operand 203 states and 235 transitions. Second operand has 4 states, 3 states have (on average 13.333333333333334) internal successors, (40), 4 states have internal predecessors, (40), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-11-29 07:01:52,550 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 07:01:52,550 INFO L93 Difference]: Finished difference Result 203 states and 235 transitions. [2023-11-29 07:01:52,550 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 07:01:52,550 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 13.333333333333334) internal successors, (40), 4 states have internal predecessors, (40), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 49 [2023-11-29 07:01:52,550 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 07:01:52,551 INFO L225 Difference]: With dead ends: 203 [2023-11-29 07:01:52,551 INFO L226 Difference]: Without dead ends: 201 [2023-11-29 07:01:52,552 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 46 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 07:01:52,552 INFO L413 NwaCegarLoop]: 95 mSDtfsCounter, 71 mSDsluCounter, 110 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 71 SdHoareTripleChecker+Valid, 205 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 07:01:52,553 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [71 Valid, 205 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 07:01:52,553 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 201 states. [2023-11-29 07:01:52,561 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 201 to 201. [2023-11-29 07:01:52,562 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 201 states, 157 states have (on average 1.414012738853503) internal successors, (222), 193 states have internal predecessors, (222), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2023-11-29 07:01:52,563 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 201 states to 201 states and 232 transitions. [2023-11-29 07:01:52,563 INFO L78 Accepts]: Start accepts. Automaton has 201 states and 232 transitions. Word has length 49 [2023-11-29 07:01:52,563 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 07:01:52,563 INFO L495 AbstractCegarLoop]: Abstraction has 201 states and 232 transitions. [2023-11-29 07:01:52,563 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 13.333333333333334) internal successors, (40), 4 states have internal predecessors, (40), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-11-29 07:01:52,563 INFO L276 IsEmpty]: Start isEmpty. Operand 201 states and 232 transitions. [2023-11-29 07:01:52,564 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2023-11-29 07:01:52,564 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 07:01:52,564 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 07:01:52,569 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2c6dc8-a580-46e1-b422-81b2f1468bab/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Forceful destruction successful, exit code 0 [2023-11-29 07:01:52,764 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2c6dc8-a580-46e1-b422-81b2f1468bab/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable24 [2023-11-29 07:01:52,764 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr33ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2023-11-29 07:01:52,764 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 07:01:52,765 INFO L85 PathProgramCache]: Analyzing trace with hash 671708696, now seen corresponding path program 1 times [2023-11-29 07:01:52,765 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 07:01:52,765 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [12061653] [2023-11-29 07:01:52,765 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:01:52,765 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 07:01:52,770 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 07:01:52,770 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [505846892] [2023-11-29 07:01:52,770 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:01:52,770 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 07:01:52,770 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2c6dc8-a580-46e1-b422-81b2f1468bab/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 07:01:52,771 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2c6dc8-a580-46e1-b422-81b2f1468bab/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 07:01:52,772 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2c6dc8-a580-46e1-b422-81b2f1468bab/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2023-11-29 07:01:52,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:01:52,813 INFO L262 TraceCheckSpWp]: Trace formula consists of 99 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-29 07:01:52,814 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 07:01:52,844 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-29 07:01:52,844 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 07:01:52,844 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 07:01:52,844 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [12061653] [2023-11-29 07:01:52,844 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 07:01:52,844 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [505846892] [2023-11-29 07:01:52,844 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [505846892] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 07:01:52,844 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 07:01:52,844 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 07:01:52,845 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1752036346] [2023-11-29 07:01:52,845 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 07:01:52,845 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 07:01:52,845 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 07:01:52,845 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 07:01:52,846 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-29 07:01:52,846 INFO L87 Difference]: Start difference. First operand 201 states and 232 transitions. Second operand has 4 states, 3 states have (on average 13.666666666666666) internal successors, (41), 4 states have internal predecessors, (41), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-11-29 07:01:52,888 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 07:01:52,888 INFO L93 Difference]: Finished difference Result 239 states and 246 transitions. [2023-11-29 07:01:52,888 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 07:01:52,888 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 13.666666666666666) internal successors, (41), 4 states have internal predecessors, (41), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 50 [2023-11-29 07:01:52,888 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 07:01:52,890 INFO L225 Difference]: With dead ends: 239 [2023-11-29 07:01:52,890 INFO L226 Difference]: Without dead ends: 238 [2023-11-29 07:01:52,890 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 47 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 07:01:52,891 INFO L413 NwaCegarLoop]: 101 mSDtfsCounter, 59 mSDsluCounter, 196 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 59 SdHoareTripleChecker+Valid, 297 SdHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 07:01:52,891 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [59 Valid, 297 Invalid, 44 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 07:01:52,892 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 238 states. [2023-11-29 07:01:52,900 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 238 to 209. [2023-11-29 07:01:52,901 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 209 states, 165 states have (on average 1.4) internal successors, (231), 201 states have internal predecessors, (231), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2023-11-29 07:01:52,902 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 209 states to 209 states and 241 transitions. [2023-11-29 07:01:52,902 INFO L78 Accepts]: Start accepts. Automaton has 209 states and 241 transitions. Word has length 50 [2023-11-29 07:01:52,902 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 07:01:52,902 INFO L495 AbstractCegarLoop]: Abstraction has 209 states and 241 transitions. [2023-11-29 07:01:52,902 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 13.666666666666666) internal successors, (41), 4 states have internal predecessors, (41), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-11-29 07:01:52,902 INFO L276 IsEmpty]: Start isEmpty. Operand 209 states and 241 transitions. [2023-11-29 07:01:52,903 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2023-11-29 07:01:52,903 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 07:01:52,903 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 07:01:52,907 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2c6dc8-a580-46e1-b422-81b2f1468bab/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Ended with exit code 0 [2023-11-29 07:01:53,103 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2c6dc8-a580-46e1-b422-81b2f1468bab/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable25 [2023-11-29 07:01:53,104 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2023-11-29 07:01:53,104 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 07:01:53,104 INFO L85 PathProgramCache]: Analyzing trace with hash 1395947735, now seen corresponding path program 1 times [2023-11-29 07:01:53,104 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 07:01:53,104 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1847141807] [2023-11-29 07:01:53,104 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:01:53,104 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 07:01:53,109 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 07:01:53,109 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1767978802] [2023-11-29 07:01:53,109 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:01:53,109 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 07:01:53,109 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2c6dc8-a580-46e1-b422-81b2f1468bab/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 07:01:53,110 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2c6dc8-a580-46e1-b422-81b2f1468bab/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 07:01:53,110 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2c6dc8-a580-46e1-b422-81b2f1468bab/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process [2023-11-29 07:01:53,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:01:53,148 INFO L262 TraceCheckSpWp]: Trace formula consists of 101 conjuncts, 9 conjunts are in the unsatisfiable core [2023-11-29 07:01:53,150 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 07:01:53,329 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-29 07:01:53,330 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 07:01:53,330 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 07:01:53,330 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1847141807] [2023-11-29 07:01:53,330 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 07:01:53,330 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1767978802] [2023-11-29 07:01:53,330 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1767978802] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 07:01:53,330 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 07:01:53,330 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-29 07:01:53,330 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [511875949] [2023-11-29 07:01:53,330 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 07:01:53,331 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-29 07:01:53,331 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 07:01:53,331 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-29 07:01:53,331 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2023-11-29 07:01:53,331 INFO L87 Difference]: Start difference. First operand 209 states and 241 transitions. Second operand has 8 states, 7 states have (on average 6.428571428571429) internal successors, (45), 8 states have internal predecessors, (45), 2 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) [2023-11-29 07:01:53,523 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 07:01:53,523 INFO L93 Difference]: Finished difference Result 209 states and 241 transitions. [2023-11-29 07:01:53,524 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-29 07:01:53,524 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 6.428571428571429) internal successors, (45), 8 states have internal predecessors, (45), 2 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) Word has length 51 [2023-11-29 07:01:53,524 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 07:01:53,525 INFO L225 Difference]: With dead ends: 209 [2023-11-29 07:01:53,525 INFO L226 Difference]: Without dead ends: 207 [2023-11-29 07:01:53,526 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2023-11-29 07:01:53,526 INFO L413 NwaCegarLoop]: 70 mSDtfsCounter, 163 mSDsluCounter, 223 mSDsCounter, 0 mSdLazyCounter, 356 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 164 SdHoareTripleChecker+Valid, 293 SdHoareTripleChecker+Invalid, 357 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 356 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-29 07:01:53,527 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [164 Valid, 293 Invalid, 357 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 356 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-29 07:01:53,527 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 207 states. [2023-11-29 07:01:53,533 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 207 to 207. [2023-11-29 07:01:53,533 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 207 states, 165 states have (on average 1.3757575757575757) internal successors, (227), 199 states have internal predecessors, (227), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2023-11-29 07:01:53,534 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 207 states to 207 states and 237 transitions. [2023-11-29 07:01:53,535 INFO L78 Accepts]: Start accepts. Automaton has 207 states and 237 transitions. Word has length 51 [2023-11-29 07:01:53,535 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 07:01:53,538 INFO L495 AbstractCegarLoop]: Abstraction has 207 states and 237 transitions. [2023-11-29 07:01:53,538 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 6.428571428571429) internal successors, (45), 8 states have internal predecessors, (45), 2 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) [2023-11-29 07:01:53,538 INFO L276 IsEmpty]: Start isEmpty. Operand 207 states and 237 transitions. [2023-11-29 07:01:53,539 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2023-11-29 07:01:53,539 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 07:01:53,539 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 07:01:53,544 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2c6dc8-a580-46e1-b422-81b2f1468bab/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Ended with exit code 0 [2023-11-29 07:01:53,741 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2c6dc8-a580-46e1-b422-81b2f1468bab/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2023-11-29 07:01:53,742 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2023-11-29 07:01:53,742 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 07:01:53,742 INFO L85 PathProgramCache]: Analyzing trace with hash 324706881, now seen corresponding path program 1 times [2023-11-29 07:01:53,742 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 07:01:53,742 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [749600462] [2023-11-29 07:01:53,742 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:01:53,742 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 07:01:53,748 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 07:01:53,748 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1758782603] [2023-11-29 07:01:53,748 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:01:53,748 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 07:01:53,748 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2c6dc8-a580-46e1-b422-81b2f1468bab/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 07:01:53,749 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2c6dc8-a580-46e1-b422-81b2f1468bab/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 07:01:53,750 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2c6dc8-a580-46e1-b422-81b2f1468bab/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Waiting until timeout for monitored process [2023-11-29 07:01:53,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:01:53,785 INFO L262 TraceCheckSpWp]: Trace formula consists of 102 conjuncts, 9 conjunts are in the unsatisfiable core [2023-11-29 07:01:53,786 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 07:01:53,933 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-29 07:01:53,933 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 07:01:54,178 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 07:01:54,178 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [749600462] [2023-11-29 07:01:54,178 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 07:01:54,178 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1758782603] [2023-11-29 07:01:54,178 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1758782603] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 07:01:54,178 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 07:01:54,178 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2023-11-29 07:01:54,178 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [573459210] [2023-11-29 07:01:54,179 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 07:01:54,179 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-29 07:01:54,179 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 07:01:54,179 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-29 07:01:54,180 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2023-11-29 07:01:54,180 INFO L87 Difference]: Start difference. First operand 207 states and 237 transitions. Second operand has 8 states, 7 states have (on average 6.571428571428571) internal successors, (46), 8 states have internal predecessors, (46), 2 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) [2023-11-29 07:01:54,389 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 07:01:54,389 INFO L93 Difference]: Finished difference Result 358 states and 416 transitions. [2023-11-29 07:01:54,389 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-29 07:01:54,389 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 6.571428571428571) internal successors, (46), 8 states have internal predecessors, (46), 2 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) Word has length 52 [2023-11-29 07:01:54,389 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 07:01:54,391 INFO L225 Difference]: With dead ends: 358 [2023-11-29 07:01:54,391 INFO L226 Difference]: Without dead ends: 356 [2023-11-29 07:01:54,391 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 55 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=42, Invalid=114, Unknown=0, NotChecked=0, Total=156 [2023-11-29 07:01:54,392 INFO L413 NwaCegarLoop]: 54 mSDtfsCounter, 208 mSDsluCounter, 257 mSDsCounter, 0 mSdLazyCounter, 348 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 210 SdHoareTripleChecker+Valid, 311 SdHoareTripleChecker+Invalid, 349 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 348 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-29 07:01:54,392 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [210 Valid, 311 Invalid, 349 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 348 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-29 07:01:54,393 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 356 states. [2023-11-29 07:01:54,405 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 356 to 257. [2023-11-29 07:01:54,405 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 257 states, 213 states have (on average 1.403755868544601) internal successors, (299), 247 states have internal predecessors, (299), 7 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2023-11-29 07:01:54,407 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 257 states to 257 states and 313 transitions. [2023-11-29 07:01:54,407 INFO L78 Accepts]: Start accepts. Automaton has 257 states and 313 transitions. Word has length 52 [2023-11-29 07:01:54,407 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 07:01:54,407 INFO L495 AbstractCegarLoop]: Abstraction has 257 states and 313 transitions. [2023-11-29 07:01:54,407 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 6.571428571428571) internal successors, (46), 8 states have internal predecessors, (46), 2 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) [2023-11-29 07:01:54,408 INFO L276 IsEmpty]: Start isEmpty. Operand 257 states and 313 transitions. [2023-11-29 07:01:54,408 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2023-11-29 07:01:54,408 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 07:01:54,408 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 07:01:54,412 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2c6dc8-a580-46e1-b422-81b2f1468bab/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Ended with exit code 0 [2023-11-29 07:01:54,609 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2c6dc8-a580-46e1-b422-81b2f1468bab/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable27 [2023-11-29 07:01:54,609 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2023-11-29 07:01:54,609 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 07:01:54,609 INFO L85 PathProgramCache]: Analyzing trace with hash 1076398939, now seen corresponding path program 1 times [2023-11-29 07:01:54,609 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 07:01:54,609 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2051333647] [2023-11-29 07:01:54,609 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:01:54,609 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 07:01:54,615 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 07:01:54,615 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [861464865] [2023-11-29 07:01:54,615 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:01:54,615 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 07:01:54,619 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2c6dc8-a580-46e1-b422-81b2f1468bab/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 07:01:54,619 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2c6dc8-a580-46e1-b422-81b2f1468bab/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 07:01:54,620 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2c6dc8-a580-46e1-b422-81b2f1468bab/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Waiting until timeout for monitored process [2023-11-29 07:01:54,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:01:54,658 INFO L262 TraceCheckSpWp]: Trace formula consists of 109 conjuncts, 10 conjunts are in the unsatisfiable core [2023-11-29 07:01:54,660 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 07:01:54,981 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 6 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-29 07:01:54,982 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 07:01:55,118 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 07:01:55,118 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2051333647] [2023-11-29 07:01:55,118 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 07:01:55,118 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [861464865] [2023-11-29 07:01:55,118 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [861464865] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 07:01:55,118 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 07:01:55,118 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2023-11-29 07:01:55,118 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1995777222] [2023-11-29 07:01:55,118 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 07:01:55,119 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-29 07:01:55,119 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 07:01:55,119 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-29 07:01:55,119 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2023-11-29 07:01:55,120 INFO L87 Difference]: Start difference. First operand 257 states and 313 transitions. Second operand has 9 states, 8 states have (on average 6.125) internal successors, (49), 9 states have internal predecessors, (49), 2 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) [2023-11-29 07:01:55,580 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 07:01:55,580 INFO L93 Difference]: Finished difference Result 257 states and 313 transitions. [2023-11-29 07:01:55,581 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-29 07:01:55,581 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 6.125) internal successors, (49), 9 states have internal predecessors, (49), 2 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) Word has length 55 [2023-11-29 07:01:55,581 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 07:01:55,583 INFO L225 Difference]: With dead ends: 257 [2023-11-29 07:01:55,583 INFO L226 Difference]: Without dead ends: 255 [2023-11-29 07:01:55,584 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 59 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=80, Invalid=226, Unknown=0, NotChecked=0, Total=306 [2023-11-29 07:01:55,585 INFO L413 NwaCegarLoop]: 42 mSDtfsCounter, 310 mSDsluCounter, 135 mSDsCounter, 0 mSdLazyCounter, 471 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 310 SdHoareTripleChecker+Valid, 177 SdHoareTripleChecker+Invalid, 476 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 471 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-29 07:01:55,585 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [310 Valid, 177 Invalid, 476 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 471 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-29 07:01:55,586 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 255 states. [2023-11-29 07:01:55,599 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 255 to 255. [2023-11-29 07:01:55,599 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 255 states, 213 states have (on average 1.375586854460094) internal successors, (293), 245 states have internal predecessors, (293), 7 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2023-11-29 07:01:55,600 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 255 states to 255 states and 307 transitions. [2023-11-29 07:01:55,600 INFO L78 Accepts]: Start accepts. Automaton has 255 states and 307 transitions. Word has length 55 [2023-11-29 07:01:55,601 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 07:01:55,601 INFO L495 AbstractCegarLoop]: Abstraction has 255 states and 307 transitions. [2023-11-29 07:01:55,601 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 6.125) internal successors, (49), 9 states have internal predecessors, (49), 2 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) [2023-11-29 07:01:55,601 INFO L276 IsEmpty]: Start isEmpty. Operand 255 states and 307 transitions. [2023-11-29 07:01:55,601 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2023-11-29 07:01:55,601 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 07:01:55,601 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 07:01:55,606 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2c6dc8-a580-46e1-b422-81b2f1468bab/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Ended with exit code 0 [2023-11-29 07:01:55,802 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2c6dc8-a580-46e1-b422-81b2f1468bab/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable28 [2023-11-29 07:01:55,802 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2023-11-29 07:01:55,802 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 07:01:55,802 INFO L85 PathProgramCache]: Analyzing trace with hash -991371195, now seen corresponding path program 1 times [2023-11-29 07:01:55,803 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 07:01:55,803 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1993526305] [2023-11-29 07:01:55,803 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:01:55,803 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 07:01:55,808 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 07:01:55,808 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [850503757] [2023-11-29 07:01:55,808 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:01:55,808 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 07:01:55,808 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2c6dc8-a580-46e1-b422-81b2f1468bab/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 07:01:55,809 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2c6dc8-a580-46e1-b422-81b2f1468bab/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 07:01:55,810 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2c6dc8-a580-46e1-b422-81b2f1468bab/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Waiting until timeout for monitored process [2023-11-29 07:01:55,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:01:55,856 INFO L262 TraceCheckSpWp]: Trace formula consists of 110 conjuncts, 16 conjunts are in the unsatisfiable core [2023-11-29 07:01:55,857 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 07:01:56,003 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-29 07:01:56,003 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 07:01:56,791 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-29 07:01:56,791 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 07:01:56,791 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1993526305] [2023-11-29 07:01:56,791 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 07:01:56,791 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [850503757] [2023-11-29 07:01:56,791 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [850503757] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 07:01:56,791 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 07:01:56,792 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 16 [2023-11-29 07:01:56,792 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [904741231] [2023-11-29 07:01:56,792 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 07:01:56,792 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2023-11-29 07:01:56,792 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 07:01:56,793 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2023-11-29 07:01:56,793 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=227, Unknown=0, NotChecked=0, Total=272 [2023-11-29 07:01:56,793 INFO L87 Difference]: Start difference. First operand 255 states and 307 transitions. Second operand has 17 states, 16 states have (on average 5.75) internal successors, (92), 17 states have internal predecessors, (92), 5 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (6), 4 states have call predecessors, (6), 5 states have call successors, (6) [2023-11-29 07:02:06,599 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 07:02:06,599 INFO L93 Difference]: Finished difference Result 460 states and 534 transitions. [2023-11-29 07:02:06,600 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2023-11-29 07:02:06,600 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 5.75) internal successors, (92), 17 states have internal predecessors, (92), 5 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (6), 4 states have call predecessors, (6), 5 states have call successors, (6) Word has length 56 [2023-11-29 07:02:06,600 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 07:02:06,603 INFO L225 Difference]: With dead ends: 460 [2023-11-29 07:02:06,603 INFO L226 Difference]: Without dead ends: 456 [2023-11-29 07:02:06,603 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 127 GetRequests, 95 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 176 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=270, Invalid=852, Unknown=0, NotChecked=0, Total=1122 [2023-11-29 07:02:06,604 INFO L413 NwaCegarLoop]: 40 mSDtfsCounter, 933 mSDsluCounter, 294 mSDsCounter, 0 mSdLazyCounter, 1021 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 933 SdHoareTripleChecker+Valid, 334 SdHoareTripleChecker+Invalid, 1050 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 1021 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.0s IncrementalHoareTripleChecker+Time [2023-11-29 07:02:06,604 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [933 Valid, 334 Invalid, 1050 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 1021 Invalid, 0 Unknown, 0 Unchecked, 9.0s Time] [2023-11-29 07:02:06,605 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 456 states. [2023-11-29 07:02:06,615 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 456 to 299. [2023-11-29 07:02:06,616 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 299 states, 256 states have (on average 1.359375) internal successors, (348), 288 states have internal predecessors, (348), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2023-11-29 07:02:06,617 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 299 states to 299 states and 364 transitions. [2023-11-29 07:02:06,617 INFO L78 Accepts]: Start accepts. Automaton has 299 states and 364 transitions. Word has length 56 [2023-11-29 07:02:06,617 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 07:02:06,617 INFO L495 AbstractCegarLoop]: Abstraction has 299 states and 364 transitions. [2023-11-29 07:02:06,617 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 5.75) internal successors, (92), 17 states have internal predecessors, (92), 5 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (6), 4 states have call predecessors, (6), 5 states have call successors, (6) [2023-11-29 07:02:06,617 INFO L276 IsEmpty]: Start isEmpty. Operand 299 states and 364 transitions. [2023-11-29 07:02:06,618 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2023-11-29 07:02:06,618 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 07:02:06,618 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 07:02:06,623 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2c6dc8-a580-46e1-b422-81b2f1468bab/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Ended with exit code 0 [2023-11-29 07:02:06,818 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,26 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2c6dc8-a580-46e1-b422-81b2f1468bab/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 07:02:06,819 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2023-11-29 07:02:06,819 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 07:02:06,819 INFO L85 PathProgramCache]: Analyzing trace with hash -1477004917, now seen corresponding path program 1 times [2023-11-29 07:02:06,819 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 07:02:06,819 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [841212302] [2023-11-29 07:02:06,819 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:02:06,819 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 07:02:06,825 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 07:02:06,825 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1106164560] [2023-11-29 07:02:06,825 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:02:06,825 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 07:02:06,825 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2c6dc8-a580-46e1-b422-81b2f1468bab/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 07:02:06,826 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2c6dc8-a580-46e1-b422-81b2f1468bab/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 07:02:06,827 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2c6dc8-a580-46e1-b422-81b2f1468bab/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Waiting until timeout for monitored process [2023-11-29 07:02:06,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:02:06,873 INFO L262 TraceCheckSpWp]: Trace formula consists of 113 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-29 07:02:06,875 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 07:02:06,987 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-29 07:02:06,987 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 07:02:07,152 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 07:02:07,152 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [841212302] [2023-11-29 07:02:07,152 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 07:02:07,152 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1106164560] [2023-11-29 07:02:07,153 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1106164560] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 07:02:07,153 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 07:02:07,153 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2023-11-29 07:02:07,153 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1095208374] [2023-11-29 07:02:07,153 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 07:02:07,153 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 07:02:07,153 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 07:02:07,154 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 07:02:07,154 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2023-11-29 07:02:07,154 INFO L87 Difference]: Start difference. First operand 299 states and 364 transitions. Second operand has 6 states, 5 states have (on average 9.6) internal successors, (48), 6 states have internal predecessors, (48), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-11-29 07:02:07,480 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 07:02:07,480 INFO L93 Difference]: Finished difference Result 324 states and 367 transitions. [2023-11-29 07:02:07,480 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-29 07:02:07,480 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 9.6) internal successors, (48), 6 states have internal predecessors, (48), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 57 [2023-11-29 07:02:07,481 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 07:02:07,482 INFO L225 Difference]: With dead ends: 324 [2023-11-29 07:02:07,482 INFO L226 Difference]: Without dead ends: 322 [2023-11-29 07:02:07,483 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 66 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=67, Invalid=143, Unknown=0, NotChecked=0, Total=210 [2023-11-29 07:02:07,483 INFO L413 NwaCegarLoop]: 111 mSDtfsCounter, 234 mSDsluCounter, 225 mSDsCounter, 0 mSdLazyCounter, 323 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 236 SdHoareTripleChecker+Valid, 336 SdHoareTripleChecker+Invalid, 326 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 323 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-29 07:02:07,483 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [236 Valid, 336 Invalid, 326 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 323 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-29 07:02:07,484 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 322 states. [2023-11-29 07:02:07,495 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 322 to 297. [2023-11-29 07:02:07,495 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 297 states, 256 states have (on average 1.34375) internal successors, (344), 286 states have internal predecessors, (344), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2023-11-29 07:02:07,496 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 297 states to 297 states and 360 transitions. [2023-11-29 07:02:07,496 INFO L78 Accepts]: Start accepts. Automaton has 297 states and 360 transitions. Word has length 57 [2023-11-29 07:02:07,496 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 07:02:07,496 INFO L495 AbstractCegarLoop]: Abstraction has 297 states and 360 transitions. [2023-11-29 07:02:07,497 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 9.6) internal successors, (48), 6 states have internal predecessors, (48), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-11-29 07:02:07,497 INFO L276 IsEmpty]: Start isEmpty. Operand 297 states and 360 transitions. [2023-11-29 07:02:07,497 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2023-11-29 07:02:07,497 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 07:02:07,497 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, 1, 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 07:02:07,501 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2c6dc8-a580-46e1-b422-81b2f1468bab/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Ended with exit code 0 [2023-11-29 07:02:07,698 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 27 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2c6dc8-a580-46e1-b422-81b2f1468bab/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable30 [2023-11-29 07:02:07,698 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2023-11-29 07:02:07,698 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 07:02:07,698 INFO L85 PathProgramCache]: Analyzing trace with hash 1457487889, now seen corresponding path program 1 times [2023-11-29 07:02:07,699 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 07:02:07,699 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [93017006] [2023-11-29 07:02:07,699 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:02:07,699 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 07:02:07,704 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 07:02:07,704 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [571359012] [2023-11-29 07:02:07,704 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:02:07,704 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 07:02:07,704 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2c6dc8-a580-46e1-b422-81b2f1468bab/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 07:02:07,705 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2c6dc8-a580-46e1-b422-81b2f1468bab/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 07:02:07,706 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2c6dc8-a580-46e1-b422-81b2f1468bab/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Waiting until timeout for monitored process [2023-11-29 07:02:07,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:02:07,748 INFO L262 TraceCheckSpWp]: Trace formula consists of 114 conjuncts, 11 conjunts are in the unsatisfiable core [2023-11-29 07:02:07,749 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 07:02:07,976 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-29 07:02:07,976 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 07:02:08,191 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 07:02:08,191 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [93017006] [2023-11-29 07:02:08,191 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 07:02:08,191 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [571359012] [2023-11-29 07:02:08,191 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [571359012] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 07:02:08,191 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 07:02:08,191 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2023-11-29 07:02:08,191 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1858555460] [2023-11-29 07:02:08,192 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 07:02:08,192 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-29 07:02:08,192 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 07:02:08,192 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-29 07:02:08,193 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=114, Unknown=0, NotChecked=0, Total=156 [2023-11-29 07:02:08,193 INFO L87 Difference]: Start difference. First operand 297 states and 360 transitions. Second operand has 9 states, 8 states have (on average 6.5) internal successors, (52), 9 states have internal predecessors, (52), 3 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) [2023-11-29 07:02:08,572 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 07:02:08,572 INFO L93 Difference]: Finished difference Result 412 states and 455 transitions. [2023-11-29 07:02:08,573 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-29 07:02:08,573 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 6.5) internal successors, (52), 9 states have internal predecessors, (52), 3 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) Word has length 58 [2023-11-29 07:02:08,573 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 07:02:08,575 INFO L225 Difference]: With dead ends: 412 [2023-11-29 07:02:08,575 INFO L226 Difference]: Without dead ends: 410 [2023-11-29 07:02:08,576 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 65 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=68, Invalid=172, Unknown=0, NotChecked=0, Total=240 [2023-11-29 07:02:08,576 INFO L413 NwaCegarLoop]: 57 mSDtfsCounter, 335 mSDsluCounter, 306 mSDsCounter, 0 mSdLazyCounter, 369 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 338 SdHoareTripleChecker+Valid, 363 SdHoareTripleChecker+Invalid, 372 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 369 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-29 07:02:08,577 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [338 Valid, 363 Invalid, 372 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 369 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-29 07:02:08,577 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 410 states. [2023-11-29 07:02:08,594 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 410 to 334. [2023-11-29 07:02:08,594 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 334 states, 292 states have (on average 1.3664383561643836) internal successors, (399), 322 states have internal predecessors, (399), 9 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2023-11-29 07:02:08,596 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 334 states to 334 states and 417 transitions. [2023-11-29 07:02:08,596 INFO L78 Accepts]: Start accepts. Automaton has 334 states and 417 transitions. Word has length 58 [2023-11-29 07:02:08,596 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 07:02:08,596 INFO L495 AbstractCegarLoop]: Abstraction has 334 states and 417 transitions. [2023-11-29 07:02:08,596 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 6.5) internal successors, (52), 9 states have internal predecessors, (52), 3 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) [2023-11-29 07:02:08,596 INFO L276 IsEmpty]: Start isEmpty. Operand 334 states and 417 transitions. [2023-11-29 07:02:08,597 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2023-11-29 07:02:08,597 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 07:02:08,597 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 07:02:08,601 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2c6dc8-a580-46e1-b422-81b2f1468bab/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Ended with exit code 0 [2023-11-29 07:02:08,797 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31,28 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2c6dc8-a580-46e1-b422-81b2f1468bab/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 07:02:08,797 INFO L420 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2023-11-29 07:02:08,798 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 07:02:08,798 INFO L85 PathProgramCache]: Analyzing trace with hash -1744077345, now seen corresponding path program 1 times [2023-11-29 07:02:08,798 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 07:02:08,798 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1090339715] [2023-11-29 07:02:08,798 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:02:08,798 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 07:02:08,803 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 07:02:08,803 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1350433968] [2023-11-29 07:02:08,803 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:02:08,803 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 07:02:08,804 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2c6dc8-a580-46e1-b422-81b2f1468bab/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 07:02:08,804 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2c6dc8-a580-46e1-b422-81b2f1468bab/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 07:02:08,805 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2c6dc8-a580-46e1-b422-81b2f1468bab/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Waiting until timeout for monitored process [2023-11-29 07:02:08,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:02:08,849 INFO L262 TraceCheckSpWp]: Trace formula consists of 113 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-29 07:02:08,850 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 07:02:08,896 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2023-11-29 07:02:08,896 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 07:02:08,944 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2023-11-29 07:02:08,944 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 07:02:08,944 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1090339715] [2023-11-29 07:02:08,944 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 07:02:08,944 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1350433968] [2023-11-29 07:02:08,944 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1350433968] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 07:02:08,944 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 07:02:08,944 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 5 [2023-11-29 07:02:08,944 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1096416082] [2023-11-29 07:02:08,944 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 07:02:08,945 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 07:02:08,945 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 07:02:08,945 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 07:02:08,945 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-11-29 07:02:08,946 INFO L87 Difference]: Start difference. First operand 334 states and 417 transitions. Second operand has 6 states, 5 states have (on average 10.2) internal successors, (51), 6 states have internal predecessors, (51), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-11-29 07:02:09,109 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 07:02:09,109 INFO L93 Difference]: Finished difference Result 381 states and 448 transitions. [2023-11-29 07:02:09,109 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-29 07:02:09,109 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 10.2) internal successors, (51), 6 states have internal predecessors, (51), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 59 [2023-11-29 07:02:09,109 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 07:02:09,111 INFO L225 Difference]: With dead ends: 381 [2023-11-29 07:02:09,111 INFO L226 Difference]: Without dead ends: 379 [2023-11-29 07:02:09,111 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 118 GetRequests, 110 SyntacticMatches, 2 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-11-29 07:02:09,112 INFO L413 NwaCegarLoop]: 89 mSDtfsCounter, 244 mSDsluCounter, 195 mSDsCounter, 0 mSdLazyCounter, 199 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 245 SdHoareTripleChecker+Valid, 284 SdHoareTripleChecker+Invalid, 210 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 199 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 07:02:09,112 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [245 Valid, 284 Invalid, 210 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 199 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 07:02:09,112 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 379 states. [2023-11-29 07:02:09,126 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 379 to 335. [2023-11-29 07:02:09,126 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 335 states, 293 states have (on average 1.3549488054607508) internal successors, (397), 323 states have internal predecessors, (397), 9 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2023-11-29 07:02:09,128 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 335 states to 335 states and 415 transitions. [2023-11-29 07:02:09,128 INFO L78 Accepts]: Start accepts. Automaton has 335 states and 415 transitions. Word has length 59 [2023-11-29 07:02:09,129 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 07:02:09,129 INFO L495 AbstractCegarLoop]: Abstraction has 335 states and 415 transitions. [2023-11-29 07:02:09,129 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 10.2) internal successors, (51), 6 states have internal predecessors, (51), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-11-29 07:02:09,129 INFO L276 IsEmpty]: Start isEmpty. Operand 335 states and 415 transitions. [2023-11-29 07:02:09,130 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2023-11-29 07:02:09,130 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 07:02:09,130 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 07:02:09,135 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2c6dc8-a580-46e1-b422-81b2f1468bab/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Forceful destruction successful, exit code 0 [2023-11-29 07:02:09,330 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32,29 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2c6dc8-a580-46e1-b422-81b2f1468bab/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 07:02:09,331 INFO L420 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2023-11-29 07:02:09,331 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 07:02:09,331 INFO L85 PathProgramCache]: Analyzing trace with hash 1768177225, now seen corresponding path program 1 times [2023-11-29 07:02:09,331 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 07:02:09,331 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1880337317] [2023-11-29 07:02:09,331 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:02:09,332 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 07:02:09,338 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 07:02:09,338 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2056620543] [2023-11-29 07:02:09,338 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:02:09,338 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 07:02:09,338 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2c6dc8-a580-46e1-b422-81b2f1468bab/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 07:02:09,339 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2c6dc8-a580-46e1-b422-81b2f1468bab/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 07:02:09,340 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2c6dc8-a580-46e1-b422-81b2f1468bab/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Waiting until timeout for monitored process [2023-11-29 07:02:09,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:02:09,385 INFO L262 TraceCheckSpWp]: Trace formula consists of 114 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-29 07:02:09,386 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 07:02:09,434 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2023-11-29 07:02:09,434 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 07:02:09,488 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2023-11-29 07:02:09,489 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 07:02:09,489 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1880337317] [2023-11-29 07:02:09,489 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 07:02:09,489 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2056620543] [2023-11-29 07:02:09,489 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2056620543] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 07:02:09,489 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 07:02:09,489 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 5 [2023-11-29 07:02:09,489 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [13916446] [2023-11-29 07:02:09,490 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 07:02:09,490 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 07:02:09,490 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 07:02:09,490 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 07:02:09,491 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-11-29 07:02:09,491 INFO L87 Difference]: Start difference. First operand 335 states and 415 transitions. Second operand has 6 states, 5 states have (on average 10.4) internal successors, (52), 6 states have internal predecessors, (52), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-11-29 07:02:09,651 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 07:02:09,651 INFO L93 Difference]: Finished difference Result 379 states and 444 transitions. [2023-11-29 07:02:09,651 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-29 07:02:09,651 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 10.4) internal successors, (52), 6 states have internal predecessors, (52), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 60 [2023-11-29 07:02:09,651 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 07:02:09,653 INFO L225 Difference]: With dead ends: 379 [2023-11-29 07:02:09,653 INFO L226 Difference]: Without dead ends: 377 [2023-11-29 07:02:09,654 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 120 GetRequests, 112 SyntacticMatches, 2 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-11-29 07:02:09,654 INFO L413 NwaCegarLoop]: 96 mSDtfsCounter, 260 mSDsluCounter, 162 mSDsCounter, 0 mSdLazyCounter, 173 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 261 SdHoareTripleChecker+Valid, 258 SdHoareTripleChecker+Invalid, 185 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 173 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 07:02:09,655 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [261 Valid, 258 Invalid, 185 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 173 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 07:02:09,655 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 377 states. [2023-11-29 07:02:09,673 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 377 to 336. [2023-11-29 07:02:09,674 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 336 states, 294 states have (on average 1.3435374149659864) internal successors, (395), 324 states have internal predecessors, (395), 9 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2023-11-29 07:02:09,675 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 336 states to 336 states and 413 transitions. [2023-11-29 07:02:09,675 INFO L78 Accepts]: Start accepts. Automaton has 336 states and 413 transitions. Word has length 60 [2023-11-29 07:02:09,676 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 07:02:09,676 INFO L495 AbstractCegarLoop]: Abstraction has 336 states and 413 transitions. [2023-11-29 07:02:09,676 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 10.4) internal successors, (52), 6 states have internal predecessors, (52), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-11-29 07:02:09,676 INFO L276 IsEmpty]: Start isEmpty. Operand 336 states and 413 transitions. [2023-11-29 07:02:09,676 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2023-11-29 07:02:09,677 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 07:02:09,677 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 07:02:09,682 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2c6dc8-a580-46e1-b422-81b2f1468bab/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Ended with exit code 0 [2023-11-29 07:02:09,881 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33,30 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2c6dc8-a580-46e1-b422-81b2f1468bab/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 07:02:09,882 INFO L420 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2023-11-29 07:02:09,882 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 07:02:09,882 INFO L85 PathProgramCache]: Analyzing trace with hash -1021080799, now seen corresponding path program 1 times [2023-11-29 07:02:09,882 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 07:02:09,882 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [495346324] [2023-11-29 07:02:09,882 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:02:09,882 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 07:02:09,888 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 07:02:09,888 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1633632332] [2023-11-29 07:02:09,888 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:02:09,888 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 07:02:09,888 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2c6dc8-a580-46e1-b422-81b2f1468bab/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 07:02:09,889 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2c6dc8-a580-46e1-b422-81b2f1468bab/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 07:02:09,890 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2c6dc8-a580-46e1-b422-81b2f1468bab/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Waiting until timeout for monitored process [2023-11-29 07:02:09,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:02:09,933 INFO L262 TraceCheckSpWp]: Trace formula consists of 115 conjuncts, 18 conjunts are in the unsatisfiable core [2023-11-29 07:02:09,934 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 07:02:10,502 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 3 proven. 9 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-29 07:02:10,502 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 07:02:10,731 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 07:02:10,731 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [495346324] [2023-11-29 07:02:10,731 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 07:02:10,731 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1633632332] [2023-11-29 07:02:10,731 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1633632332] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 07:02:10,731 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 07:02:10,731 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2023-11-29 07:02:10,731 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [315848704] [2023-11-29 07:02:10,731 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 07:02:10,732 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-11-29 07:02:10,732 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 07:02:10,732 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-11-29 07:02:10,733 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=194, Unknown=0, NotChecked=0, Total=240 [2023-11-29 07:02:10,733 INFO L87 Difference]: Start difference. First operand 336 states and 413 transitions. Second operand has 11 states, 10 states have (on average 5.2) internal successors, (52), 11 states have internal predecessors, (52), 3 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-11-29 07:02:11,575 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 07:02:11,576 INFO L93 Difference]: Finished difference Result 375 states and 438 transitions. [2023-11-29 07:02:11,576 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-11-29 07:02:11,576 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 5.2) internal successors, (52), 11 states have internal predecessors, (52), 3 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Word has length 61 [2023-11-29 07:02:11,576 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 07:02:11,578 INFO L225 Difference]: With dead ends: 375 [2023-11-29 07:02:11,578 INFO L226 Difference]: Without dead ends: 373 [2023-11-29 07:02:11,579 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 89 GetRequests, 68 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 68 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=128, Invalid=378, Unknown=0, NotChecked=0, Total=506 [2023-11-29 07:02:11,579 INFO L413 NwaCegarLoop]: 35 mSDtfsCounter, 370 mSDsluCounter, 207 mSDsCounter, 0 mSdLazyCounter, 791 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 371 SdHoareTripleChecker+Valid, 242 SdHoareTripleChecker+Invalid, 800 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 791 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-11-29 07:02:11,580 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [371 Valid, 242 Invalid, 800 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 791 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-11-29 07:02:11,580 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 373 states. [2023-11-29 07:02:11,594 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 373 to 337. [2023-11-29 07:02:11,594 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 337 states, 295 states have (on average 1.3322033898305086) internal successors, (393), 325 states have internal predecessors, (393), 9 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2023-11-29 07:02:11,596 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 337 states to 337 states and 411 transitions. [2023-11-29 07:02:11,596 INFO L78 Accepts]: Start accepts. Automaton has 337 states and 411 transitions. Word has length 61 [2023-11-29 07:02:11,597 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 07:02:11,597 INFO L495 AbstractCegarLoop]: Abstraction has 337 states and 411 transitions. [2023-11-29 07:02:11,597 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 5.2) internal successors, (52), 11 states have internal predecessors, (52), 3 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-11-29 07:02:11,597 INFO L276 IsEmpty]: Start isEmpty. Operand 337 states and 411 transitions. [2023-11-29 07:02:11,597 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2023-11-29 07:02:11,597 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 07:02:11,598 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 07:02:11,602 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2c6dc8-a580-46e1-b422-81b2f1468bab/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Forceful destruction successful, exit code 0 [2023-11-29 07:02:11,798 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34,31 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2c6dc8-a580-46e1-b422-81b2f1468bab/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 07:02:11,798 INFO L420 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2023-11-29 07:02:11,798 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 07:02:11,799 INFO L85 PathProgramCache]: Analyzing trace with hash -2097599729, now seen corresponding path program 1 times [2023-11-29 07:02:11,799 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 07:02:11,799 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [476178958] [2023-11-29 07:02:11,799 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:02:11,799 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 07:02:11,803 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 07:02:11,803 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1814718996] [2023-11-29 07:02:11,804 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:02:11,804 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 07:02:11,804 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2c6dc8-a580-46e1-b422-81b2f1468bab/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 07:02:11,804 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2c6dc8-a580-46e1-b422-81b2f1468bab/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 07:02:11,805 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2c6dc8-a580-46e1-b422-81b2f1468bab/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Waiting until timeout for monitored process [2023-11-29 07:02:11,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:02:11,847 INFO L262 TraceCheckSpWp]: Trace formula consists of 119 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-29 07:02:11,848 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 07:02:11,993 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-29 07:02:11,993 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 07:02:12,330 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 07:02:12,330 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [476178958] [2023-11-29 07:02:12,330 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 07:02:12,330 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1814718996] [2023-11-29 07:02:12,330 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1814718996] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 07:02:12,330 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 07:02:12,330 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2023-11-29 07:02:12,331 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1436559885] [2023-11-29 07:02:12,331 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 07:02:12,331 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-29 07:02:12,331 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 07:02:12,331 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-29 07:02:12,331 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2023-11-29 07:02:12,331 INFO L87 Difference]: Start difference. First operand 337 states and 411 transitions. Second operand has 7 states, 6 states have (on average 8.666666666666666) internal successors, (52), 7 states have internal predecessors, (52), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-11-29 07:02:12,801 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 07:02:12,801 INFO L93 Difference]: Finished difference Result 370 states and 431 transitions. [2023-11-29 07:02:12,801 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-11-29 07:02:12,801 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 8.666666666666666) internal successors, (52), 7 states have internal predecessors, (52), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 61 [2023-11-29 07:02:12,801 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 07:02:12,803 INFO L225 Difference]: With dead ends: 370 [2023-11-29 07:02:12,803 INFO L226 Difference]: Without dead ends: 368 [2023-11-29 07:02:12,803 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 91 GetRequests, 72 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=120, Invalid=300, Unknown=0, NotChecked=0, Total=420 [2023-11-29 07:02:12,804 INFO L413 NwaCegarLoop]: 101 mSDtfsCounter, 316 mSDsluCounter, 243 mSDsCounter, 0 mSdLazyCounter, 448 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 316 SdHoareTripleChecker+Valid, 344 SdHoareTripleChecker+Invalid, 456 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 448 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-29 07:02:12,804 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [316 Valid, 344 Invalid, 456 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 448 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-29 07:02:12,805 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 368 states. [2023-11-29 07:02:12,817 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 368 to 335. [2023-11-29 07:02:12,817 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 335 states, 295 states have (on average 1.3152542372881355) internal successors, (388), 323 states have internal predecessors, (388), 9 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2023-11-29 07:02:12,818 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 335 states to 335 states and 406 transitions. [2023-11-29 07:02:12,818 INFO L78 Accepts]: Start accepts. Automaton has 335 states and 406 transitions. Word has length 61 [2023-11-29 07:02:12,818 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 07:02:12,819 INFO L495 AbstractCegarLoop]: Abstraction has 335 states and 406 transitions. [2023-11-29 07:02:12,819 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 8.666666666666666) internal successors, (52), 7 states have internal predecessors, (52), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-11-29 07:02:12,819 INFO L276 IsEmpty]: Start isEmpty. Operand 335 states and 406 transitions. [2023-11-29 07:02:12,819 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2023-11-29 07:02:12,819 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 07:02:12,819 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 07:02:12,823 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2c6dc8-a580-46e1-b422-81b2f1468bab/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Forceful destruction successful, exit code 0 [2023-11-29 07:02:13,019 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35,32 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2c6dc8-a580-46e1-b422-81b2f1468bab/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 07:02:13,020 INFO L420 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2023-11-29 07:02:13,020 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 07:02:13,020 INFO L85 PathProgramCache]: Analyzing trace with hash -601082091, now seen corresponding path program 1 times [2023-11-29 07:02:13,020 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 07:02:13,020 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2113734715] [2023-11-29 07:02:13,020 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:02:13,020 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 07:02:13,025 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 07:02:13,025 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1163439957] [2023-11-29 07:02:13,025 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:02:13,026 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 07:02:13,026 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2c6dc8-a580-46e1-b422-81b2f1468bab/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 07:02:13,026 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2c6dc8-a580-46e1-b422-81b2f1468bab/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 07:02:13,027 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2c6dc8-a580-46e1-b422-81b2f1468bab/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (33)] Waiting until timeout for monitored process [2023-11-29 07:02:13,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:02:13,069 INFO L262 TraceCheckSpWp]: Trace formula consists of 120 conjuncts, 11 conjunts are in the unsatisfiable core [2023-11-29 07:02:13,071 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 07:02:13,182 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-29 07:02:13,182 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 07:02:13,905 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-29 07:02:13,905 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 07:02:13,905 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2113734715] [2023-11-29 07:02:13,905 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 07:02:13,905 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1163439957] [2023-11-29 07:02:13,905 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1163439957] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 07:02:13,905 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 07:02:13,905 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 11 [2023-11-29 07:02:13,906 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [68448144] [2023-11-29 07:02:13,906 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 07:02:13,906 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-29 07:02:13,906 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 07:02:13,906 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-29 07:02:13,907 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2023-11-29 07:02:13,907 INFO L87 Difference]: Start difference. First operand 335 states and 406 transitions. Second operand has 12 states, 11 states have (on average 9.090909090909092) internal successors, (100), 12 states have internal predecessors, (100), 4 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 4 states have call predecessors, (6), 4 states have call successors, (6) [2023-11-29 07:02:19,400 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.16s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-29 07:02:28,886 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 07:02:28,886 INFO L93 Difference]: Finished difference Result 497 states and 536 transitions. [2023-11-29 07:02:28,887 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-11-29 07:02:28,887 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 9.090909090909092) internal successors, (100), 12 states have internal predecessors, (100), 4 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 4 states have call predecessors, (6), 4 states have call successors, (6) Word has length 62 [2023-11-29 07:02:28,887 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 07:02:28,890 INFO L225 Difference]: With dead ends: 497 [2023-11-29 07:02:28,890 INFO L226 Difference]: Without dead ends: 495 [2023-11-29 07:02:28,890 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 132 GetRequests, 112 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 83 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=149, Invalid=313, Unknown=0, NotChecked=0, Total=462 [2023-11-29 07:02:28,890 INFO L413 NwaCegarLoop]: 82 mSDtfsCounter, 991 mSDsluCounter, 409 mSDsCounter, 0 mSdLazyCounter, 635 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 991 SdHoareTripleChecker+Valid, 491 SdHoareTripleChecker+Invalid, 655 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 635 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.2s IncrementalHoareTripleChecker+Time [2023-11-29 07:02:28,890 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [991 Valid, 491 Invalid, 655 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 635 Invalid, 0 Unknown, 0 Unchecked, 13.2s Time] [2023-11-29 07:02:28,891 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 495 states. [2023-11-29 07:02:28,905 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 495 to 372. [2023-11-29 07:02:28,905 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 372 states, 331 states have (on average 1.3232628398791542) internal successors, (438), 359 states have internal predecessors, (438), 10 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2023-11-29 07:02:28,906 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 372 states to 372 states and 458 transitions. [2023-11-29 07:02:28,906 INFO L78 Accepts]: Start accepts. Automaton has 372 states and 458 transitions. Word has length 62 [2023-11-29 07:02:28,907 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 07:02:28,907 INFO L495 AbstractCegarLoop]: Abstraction has 372 states and 458 transitions. [2023-11-29 07:02:28,907 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 9.090909090909092) internal successors, (100), 12 states have internal predecessors, (100), 4 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 4 states have call predecessors, (6), 4 states have call successors, (6) [2023-11-29 07:02:28,907 INFO L276 IsEmpty]: Start isEmpty. Operand 372 states and 458 transitions. [2023-11-29 07:02:28,907 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2023-11-29 07:02:28,907 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 07:02:28,907 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 07:02:28,912 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2c6dc8-a580-46e1-b422-81b2f1468bab/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (33)] Forceful destruction successful, exit code 0 [2023-11-29 07:02:29,112 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 33 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2c6dc8-a580-46e1-b422-81b2f1468bab/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable36 [2023-11-29 07:02:29,112 INFO L420 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2023-11-29 07:02:29,112 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 07:02:29,112 INFO L85 PathProgramCache]: Analyzing trace with hash -1453675567, now seen corresponding path program 1 times [2023-11-29 07:02:29,112 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 07:02:29,112 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [956893869] [2023-11-29 07:02:29,113 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:02:29,113 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 07:02:29,118 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 07:02:29,118 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [311664609] [2023-11-29 07:02:29,118 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:02:29,118 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 07:02:29,118 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2c6dc8-a580-46e1-b422-81b2f1468bab/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 07:02:29,119 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2c6dc8-a580-46e1-b422-81b2f1468bab/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 07:02:29,120 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2c6dc8-a580-46e1-b422-81b2f1468bab/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (34)] Waiting until timeout for monitored process [2023-11-29 07:02:29,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:02:29,162 INFO L262 TraceCheckSpWp]: Trace formula consists of 121 conjuncts, 9 conjunts are in the unsatisfiable core [2023-11-29 07:02:29,163 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 07:02:29,363 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-29 07:02:29,364 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 07:02:29,599 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 07:02:29,599 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [956893869] [2023-11-29 07:02:29,599 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 07:02:29,599 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [311664609] [2023-11-29 07:02:29,599 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [311664609] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 07:02:29,599 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 07:02:29,599 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2023-11-29 07:02:29,600 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1097800341] [2023-11-29 07:02:29,600 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 07:02:29,600 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-29 07:02:29,600 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 07:02:29,601 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-29 07:02:29,601 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=192, Unknown=0, NotChecked=0, Total=240 [2023-11-29 07:02:29,601 INFO L87 Difference]: Start difference. First operand 372 states and 458 transitions. Second operand has 9 states, 8 states have (on average 6.75) internal successors, (54), 9 states have internal predecessors, (54), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-11-29 07:02:30,286 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 07:02:30,286 INFO L93 Difference]: Finished difference Result 573 states and 711 transitions. [2023-11-29 07:02:30,287 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-29 07:02:30,287 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 6.75) internal successors, (54), 9 states have internal predecessors, (54), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 63 [2023-11-29 07:02:30,287 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 07:02:30,289 INFO L225 Difference]: With dead ends: 573 [2023-11-29 07:02:30,289 INFO L226 Difference]: Without dead ends: 571 [2023-11-29 07:02:30,289 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 92 GetRequests, 72 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=109, Invalid=353, Unknown=0, NotChecked=0, Total=462 [2023-11-29 07:02:30,290 INFO L413 NwaCegarLoop]: 89 mSDtfsCounter, 253 mSDsluCounter, 313 mSDsCounter, 0 mSdLazyCounter, 767 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 253 SdHoareTripleChecker+Valid, 402 SdHoareTripleChecker+Invalid, 777 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 767 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-11-29 07:02:30,290 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [253 Valid, 402 Invalid, 777 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 767 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-11-29 07:02:30,291 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 571 states. [2023-11-29 07:02:30,310 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 571 to 520. [2023-11-29 07:02:30,311 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 520 states, 475 states have (on average 1.3494736842105264) internal successors, (641), 503 states have internal predecessors, (641), 14 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2023-11-29 07:02:30,312 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 520 states to 520 states and 669 transitions. [2023-11-29 07:02:30,312 INFO L78 Accepts]: Start accepts. Automaton has 520 states and 669 transitions. Word has length 63 [2023-11-29 07:02:30,312 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 07:02:30,313 INFO L495 AbstractCegarLoop]: Abstraction has 520 states and 669 transitions. [2023-11-29 07:02:30,313 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 6.75) internal successors, (54), 9 states have internal predecessors, (54), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-11-29 07:02:30,313 INFO L276 IsEmpty]: Start isEmpty. Operand 520 states and 669 transitions. [2023-11-29 07:02:30,313 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2023-11-29 07:02:30,313 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 07:02:30,313 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 07:02:30,317 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2c6dc8-a580-46e1-b422-81b2f1468bab/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (34)] Ended with exit code 0 [2023-11-29 07:02:30,514 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37,34 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2c6dc8-a580-46e1-b422-81b2f1468bab/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 07:02:30,514 INFO L420 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2023-11-29 07:02:30,514 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 07:02:30,514 INFO L85 PathProgramCache]: Analyzing trace with hash -2114269545, now seen corresponding path program 1 times [2023-11-29 07:02:30,514 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 07:02:30,514 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [26330641] [2023-11-29 07:02:30,514 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:02:30,514 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 07:02:30,519 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 07:02:30,519 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [352803379] [2023-11-29 07:02:30,519 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:02:30,520 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 07:02:30,520 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2c6dc8-a580-46e1-b422-81b2f1468bab/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 07:02:30,520 INFO L229 MonitoredProcess]: Starting monitored process 35 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2c6dc8-a580-46e1-b422-81b2f1468bab/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 07:02:30,521 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2c6dc8-a580-46e1-b422-81b2f1468bab/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (35)] Waiting until timeout for monitored process [2023-11-29 07:02:30,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:02:30,567 INFO L262 TraceCheckSpWp]: Trace formula consists of 122 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-29 07:02:30,568 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 07:02:30,739 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-29 07:02:30,739 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 07:02:30,904 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 07:02:30,904 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [26330641] [2023-11-29 07:02:30,904 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 07:02:30,904 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [352803379] [2023-11-29 07:02:30,904 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [352803379] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 07:02:30,904 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 07:02:30,904 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2023-11-29 07:02:30,905 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [18369057] [2023-11-29 07:02:30,905 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 07:02:30,905 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-29 07:02:30,905 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 07:02:30,905 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-29 07:02:30,906 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=145, Unknown=0, NotChecked=0, Total=182 [2023-11-29 07:02:30,906 INFO L87 Difference]: Start difference. First operand 520 states and 669 transitions. Second operand has 8 states, 7 states have (on average 7.857142857142857) internal successors, (55), 8 states have internal predecessors, (55), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-11-29 07:02:31,534 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 07:02:31,534 INFO L93 Difference]: Finished difference Result 548 states and 684 transitions. [2023-11-29 07:02:31,534 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2023-11-29 07:02:31,534 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 7.857142857142857) internal successors, (55), 8 states have internal predecessors, (55), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 64 [2023-11-29 07:02:31,534 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 07:02:31,537 INFO L225 Difference]: With dead ends: 548 [2023-11-29 07:02:31,537 INFO L226 Difference]: Without dead ends: 546 [2023-11-29 07:02:31,538 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 101 GetRequests, 76 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 87 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=194, Invalid=508, Unknown=0, NotChecked=0, Total=702 [2023-11-29 07:02:31,538 INFO L413 NwaCegarLoop]: 101 mSDtfsCounter, 379 mSDsluCounter, 243 mSDsCounter, 0 mSdLazyCounter, 460 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 379 SdHoareTripleChecker+Valid, 344 SdHoareTripleChecker+Invalid, 471 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 460 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-29 07:02:31,538 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [379 Valid, 344 Invalid, 471 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 460 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-29 07:02:31,539 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 546 states. [2023-11-29 07:02:31,560 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 546 to 518. [2023-11-29 07:02:31,560 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 518 states, 475 states have (on average 1.328421052631579) internal successors, (631), 501 states have internal predecessors, (631), 14 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2023-11-29 07:02:31,562 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 518 states to 518 states and 659 transitions. [2023-11-29 07:02:31,562 INFO L78 Accepts]: Start accepts. Automaton has 518 states and 659 transitions. Word has length 64 [2023-11-29 07:02:31,562 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 07:02:31,562 INFO L495 AbstractCegarLoop]: Abstraction has 518 states and 659 transitions. [2023-11-29 07:02:31,562 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 7.857142857142857) internal successors, (55), 8 states have internal predecessors, (55), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-11-29 07:02:31,562 INFO L276 IsEmpty]: Start isEmpty. Operand 518 states and 659 transitions. [2023-11-29 07:02:31,562 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2023-11-29 07:02:31,563 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 07:02:31,563 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 07:02:31,567 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2c6dc8-a580-46e1-b422-81b2f1468bab/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (35)] Ended with exit code 0 [2023-11-29 07:02:31,763 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 35 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2c6dc8-a580-46e1-b422-81b2f1468bab/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable38 [2023-11-29 07:02:31,763 INFO L420 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2023-11-29 07:02:31,763 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 07:02:31,763 INFO L85 PathProgramCache]: Analyzing trace with hash -1117846381, now seen corresponding path program 1 times [2023-11-29 07:02:31,763 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 07:02:31,764 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1125556160] [2023-11-29 07:02:31,764 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:02:31,764 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 07:02:31,768 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 07:02:31,768 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [331223904] [2023-11-29 07:02:31,769 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:02:31,769 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 07:02:31,769 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2c6dc8-a580-46e1-b422-81b2f1468bab/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 07:02:31,770 INFO L229 MonitoredProcess]: Starting monitored process 36 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2c6dc8-a580-46e1-b422-81b2f1468bab/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 07:02:31,770 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2c6dc8-a580-46e1-b422-81b2f1468bab/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (36)] Waiting until timeout for monitored process [2023-11-29 07:02:31,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:02:31,814 INFO L262 TraceCheckSpWp]: Trace formula consists of 123 conjuncts, 9 conjunts are in the unsatisfiable core [2023-11-29 07:02:31,816 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 07:02:32,047 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-29 07:02:32,048 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 07:02:32,357 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 07:02:32,357 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1125556160] [2023-11-29 07:02:32,357 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 07:02:32,357 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [331223904] [2023-11-29 07:02:32,357 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [331223904] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 07:02:32,358 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 07:02:32,358 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2023-11-29 07:02:32,358 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1333550174] [2023-11-29 07:02:32,358 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 07:02:32,358 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-29 07:02:32,358 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 07:02:32,359 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-29 07:02:32,359 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=192, Unknown=0, NotChecked=0, Total=240 [2023-11-29 07:02:32,359 INFO L87 Difference]: Start difference. First operand 518 states and 659 transitions. Second operand has 9 states, 8 states have (on average 7.0) internal successors, (56), 9 states have internal predecessors, (56), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-11-29 07:02:33,334 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 07:02:33,334 INFO L93 Difference]: Finished difference Result 567 states and 693 transitions. [2023-11-29 07:02:33,335 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-29 07:02:33,335 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 7.0) internal successors, (56), 9 states have internal predecessors, (56), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 65 [2023-11-29 07:02:33,335 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 07:02:33,337 INFO L225 Difference]: With dead ends: 567 [2023-11-29 07:02:33,337 INFO L226 Difference]: Without dead ends: 565 [2023-11-29 07:02:33,338 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 97 GetRequests, 76 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=134, Invalid=372, Unknown=0, NotChecked=0, Total=506 [2023-11-29 07:02:33,338 INFO L413 NwaCegarLoop]: 54 mSDtfsCounter, 287 mSDsluCounter, 199 mSDsCounter, 0 mSdLazyCounter, 537 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 287 SdHoareTripleChecker+Valid, 253 SdHoareTripleChecker+Invalid, 547 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 537 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-11-29 07:02:33,338 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [287 Valid, 253 Invalid, 547 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 537 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-11-29 07:02:33,339 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 565 states. [2023-11-29 07:02:33,378 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 565 to 519. [2023-11-29 07:02:33,378 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 519 states, 476 states have (on average 1.319327731092437) internal successors, (628), 502 states have internal predecessors, (628), 14 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2023-11-29 07:02:33,381 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 519 states to 519 states and 656 transitions. [2023-11-29 07:02:33,381 INFO L78 Accepts]: Start accepts. Automaton has 519 states and 656 transitions. Word has length 65 [2023-11-29 07:02:33,381 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 07:02:33,381 INFO L495 AbstractCegarLoop]: Abstraction has 519 states and 656 transitions. [2023-11-29 07:02:33,381 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 7.0) internal successors, (56), 9 states have internal predecessors, (56), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-11-29 07:02:33,381 INFO L276 IsEmpty]: Start isEmpty. Operand 519 states and 656 transitions. [2023-11-29 07:02:33,382 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2023-11-29 07:02:33,382 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 07:02:33,382 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 07:02:33,387 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2c6dc8-a580-46e1-b422-81b2f1468bab/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (36)] Forceful destruction successful, exit code 0 [2023-11-29 07:02:33,582 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 36 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2c6dc8-a580-46e1-b422-81b2f1468bab/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable39 [2023-11-29 07:02:33,582 INFO L420 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2023-11-29 07:02:33,583 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 07:02:33,583 INFO L85 PathProgramCache]: Analyzing trace with hash 687793999, now seen corresponding path program 1 times [2023-11-29 07:02:33,583 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 07:02:33,583 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1130974546] [2023-11-29 07:02:33,583 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:02:33,583 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 07:02:33,588 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 07:02:33,588 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1049383554] [2023-11-29 07:02:33,588 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:02:33,588 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 07:02:33,588 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2c6dc8-a580-46e1-b422-81b2f1468bab/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 07:02:33,589 INFO L229 MonitoredProcess]: Starting monitored process 37 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2c6dc8-a580-46e1-b422-81b2f1468bab/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 07:02:33,590 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2c6dc8-a580-46e1-b422-81b2f1468bab/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (37)] Waiting until timeout for monitored process [2023-11-29 07:02:33,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:02:33,629 INFO L262 TraceCheckSpWp]: Trace formula consists of 120 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-29 07:02:33,630 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 07:02:33,709 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 17 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-29 07:02:33,709 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 07:02:33,835 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 11 proven. 6 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-29 07:02:33,835 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 07:02:33,835 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1130974546] [2023-11-29 07:02:33,835 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 07:02:33,835 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1049383554] [2023-11-29 07:02:33,836 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1049383554] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 07:02:33,836 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 07:02:33,836 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 7 [2023-11-29 07:02:33,836 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1144855176] [2023-11-29 07:02:33,836 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 07:02:33,836 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-29 07:02:33,836 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 07:02:33,837 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-29 07:02:33,837 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2023-11-29 07:02:33,837 INFO L87 Difference]: Start difference. First operand 519 states and 656 transitions. Second operand has 8 states, 7 states have (on average 14.714285714285714) internal successors, (103), 8 states have internal predecessors, (103), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2023-11-29 07:02:34,150 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 07:02:34,150 INFO L93 Difference]: Finished difference Result 565 states and 687 transitions. [2023-11-29 07:02:34,151 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-29 07:02:34,151 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 14.714285714285714) internal successors, (103), 8 states have internal predecessors, (103), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) Word has length 66 [2023-11-29 07:02:34,151 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 07:02:34,154 INFO L225 Difference]: With dead ends: 565 [2023-11-29 07:02:34,154 INFO L226 Difference]: Without dead ends: 563 [2023-11-29 07:02:34,154 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 135 GetRequests, 124 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=62, Invalid=94, Unknown=0, NotChecked=0, Total=156 [2023-11-29 07:02:34,154 INFO L413 NwaCegarLoop]: 77 mSDtfsCounter, 203 mSDsluCounter, 146 mSDsCounter, 0 mSdLazyCounter, 355 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 205 SdHoareTripleChecker+Valid, 223 SdHoareTripleChecker+Invalid, 366 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 355 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-29 07:02:34,155 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [205 Valid, 223 Invalid, 366 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 355 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-29 07:02:34,155 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 563 states. [2023-11-29 07:02:34,180 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 563 to 532. [2023-11-29 07:02:34,180 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 532 states, 489 states have (on average 1.296523517382413) internal successors, (634), 515 states have internal predecessors, (634), 14 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2023-11-29 07:02:34,182 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 532 states to 532 states and 662 transitions. [2023-11-29 07:02:34,182 INFO L78 Accepts]: Start accepts. Automaton has 532 states and 662 transitions. Word has length 66 [2023-11-29 07:02:34,182 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 07:02:34,182 INFO L495 AbstractCegarLoop]: Abstraction has 532 states and 662 transitions. [2023-11-29 07:02:34,182 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 14.714285714285714) internal successors, (103), 8 states have internal predecessors, (103), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2023-11-29 07:02:34,183 INFO L276 IsEmpty]: Start isEmpty. Operand 532 states and 662 transitions. [2023-11-29 07:02:34,183 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2023-11-29 07:02:34,183 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 07:02:34,183 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 07:02:34,187 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2c6dc8-a580-46e1-b422-81b2f1468bab/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (37)] Forceful destruction successful, exit code 0 [2023-11-29 07:02:34,383 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40,37 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2c6dc8-a580-46e1-b422-81b2f1468bab/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 07:02:34,384 INFO L420 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2023-11-29 07:02:34,384 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 07:02:34,384 INFO L85 PathProgramCache]: Analyzing trace with hash -153222425, now seen corresponding path program 1 times [2023-11-29 07:02:34,384 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 07:02:34,384 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [662961672] [2023-11-29 07:02:34,390 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:02:34,390 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 07:02:34,397 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 07:02:34,397 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1586070749] [2023-11-29 07:02:34,398 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:02:34,398 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 07:02:34,398 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2c6dc8-a580-46e1-b422-81b2f1468bab/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 07:02:34,399 INFO L229 MonitoredProcess]: Starting monitored process 38 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2c6dc8-a580-46e1-b422-81b2f1468bab/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 07:02:34,402 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2c6dc8-a580-46e1-b422-81b2f1468bab/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (38)] Waiting until timeout for monitored process [2023-11-29 07:02:34,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:02:34,451 INFO L262 TraceCheckSpWp]: Trace formula consists of 121 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-29 07:02:34,453 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 07:02:34,520 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-29 07:02:34,520 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 07:02:34,520 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 07:02:34,520 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [662961672] [2023-11-29 07:02:34,520 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 07:02:34,520 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1586070749] [2023-11-29 07:02:34,520 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1586070749] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 07:02:34,520 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 07:02:34,521 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-29 07:02:34,521 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1916819523] [2023-11-29 07:02:34,521 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 07:02:34,521 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 07:02:34,521 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 07:02:34,521 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 07:02:34,522 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-29 07:02:34,522 INFO L87 Difference]: Start difference. First operand 532 states and 662 transitions. Second operand has 5 states, 4 states have (on average 14.5) internal successors, (58), 5 states have internal predecessors, (58), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2023-11-29 07:02:34,726 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 07:02:34,727 INFO L93 Difference]: Finished difference Result 838 states and 1050 transitions. [2023-11-29 07:02:34,727 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-29 07:02:34,727 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 14.5) internal successors, (58), 5 states have internal predecessors, (58), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 67 [2023-11-29 07:02:34,727 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 07:02:34,731 INFO L225 Difference]: With dead ends: 838 [2023-11-29 07:02:34,731 INFO L226 Difference]: Without dead ends: 836 [2023-11-29 07:02:34,731 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 63 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2023-11-29 07:02:34,732 INFO L413 NwaCegarLoop]: 107 mSDtfsCounter, 108 mSDsluCounter, 156 mSDsCounter, 0 mSdLazyCounter, 185 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 109 SdHoareTripleChecker+Valid, 263 SdHoareTripleChecker+Invalid, 190 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 185 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 07:02:34,732 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [109 Valid, 263 Invalid, 190 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 185 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 07:02:34,733 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 836 states. [2023-11-29 07:02:34,765 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 836 to 712. [2023-11-29 07:02:34,766 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 712 states, 664 states have (on average 1.2966867469879517) internal successors, (861), 690 states have internal predecessors, (861), 19 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2023-11-29 07:02:34,768 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 712 states to 712 states and 899 transitions. [2023-11-29 07:02:34,768 INFO L78 Accepts]: Start accepts. Automaton has 712 states and 899 transitions. Word has length 67 [2023-11-29 07:02:34,768 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 07:02:34,768 INFO L495 AbstractCegarLoop]: Abstraction has 712 states and 899 transitions. [2023-11-29 07:02:34,768 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 14.5) internal successors, (58), 5 states have internal predecessors, (58), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2023-11-29 07:02:34,769 INFO L276 IsEmpty]: Start isEmpty. Operand 712 states and 899 transitions. [2023-11-29 07:02:34,769 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2023-11-29 07:02:34,769 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 07:02:34,769 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 07:02:34,773 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2c6dc8-a580-46e1-b422-81b2f1468bab/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (38)] Ended with exit code 0 [2023-11-29 07:02:34,973 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41,38 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2c6dc8-a580-46e1-b422-81b2f1468bab/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 07:02:34,974 INFO L420 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2023-11-29 07:02:34,974 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 07:02:34,974 INFO L85 PathProgramCache]: Analyzing trace with hash -454927791, now seen corresponding path program 1 times [2023-11-29 07:02:34,974 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 07:02:34,974 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1445204471] [2023-11-29 07:02:34,974 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:02:34,975 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 07:02:34,981 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 07:02:34,982 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1200673133] [2023-11-29 07:02:34,982 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:02:34,982 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 07:02:34,982 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2c6dc8-a580-46e1-b422-81b2f1468bab/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 07:02:34,983 INFO L229 MonitoredProcess]: Starting monitored process 39 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2c6dc8-a580-46e1-b422-81b2f1468bab/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 07:02:34,984 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2c6dc8-a580-46e1-b422-81b2f1468bab/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (39)] Waiting until timeout for monitored process [2023-11-29 07:02:35,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:02:35,036 INFO L262 TraceCheckSpWp]: Trace formula consists of 122 conjuncts, 9 conjunts are in the unsatisfiable core [2023-11-29 07:02:35,038 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 07:02:35,333 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-29 07:02:35,333 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 07:02:35,333 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 07:02:35,333 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1445204471] [2023-11-29 07:02:35,333 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 07:02:35,333 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1200673133] [2023-11-29 07:02:35,333 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1200673133] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 07:02:35,334 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 07:02:35,334 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-29 07:02:35,334 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [14212829] [2023-11-29 07:02:35,334 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 07:02:35,334 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-29 07:02:35,334 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 07:02:35,334 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-29 07:02:35,335 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2023-11-29 07:02:35,335 INFO L87 Difference]: Start difference. First operand 712 states and 899 transitions. Second operand has 8 states, 7 states have (on average 8.857142857142858) internal successors, (62), 8 states have internal predecessors, (62), 2 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) [2023-11-29 07:02:35,577 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 07:02:35,578 INFO L93 Difference]: Finished difference Result 736 states and 912 transitions. [2023-11-29 07:02:35,578 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-29 07:02:35,578 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 8.857142857142858) internal successors, (62), 8 states have internal predecessors, (62), 2 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) Word has length 68 [2023-11-29 07:02:35,578 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 07:02:35,582 INFO L225 Difference]: With dead ends: 736 [2023-11-29 07:02:35,582 INFO L226 Difference]: Without dead ends: 734 [2023-11-29 07:02:35,582 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 61 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2023-11-29 07:02:35,583 INFO L413 NwaCegarLoop]: 60 mSDtfsCounter, 178 mSDsluCounter, 207 mSDsCounter, 0 mSdLazyCounter, 422 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 180 SdHoareTripleChecker+Valid, 267 SdHoareTripleChecker+Invalid, 426 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 422 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-29 07:02:35,583 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [180 Valid, 267 Invalid, 426 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 422 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-29 07:02:35,584 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 734 states. [2023-11-29 07:02:35,615 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 734 to 719. [2023-11-29 07:02:35,616 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 719 states, 671 states have (on average 1.2891207153502235) internal successors, (865), 697 states have internal predecessors, (865), 19 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2023-11-29 07:02:35,618 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 719 states to 719 states and 903 transitions. [2023-11-29 07:02:35,618 INFO L78 Accepts]: Start accepts. Automaton has 719 states and 903 transitions. Word has length 68 [2023-11-29 07:02:35,618 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 07:02:35,618 INFO L495 AbstractCegarLoop]: Abstraction has 719 states and 903 transitions. [2023-11-29 07:02:35,619 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 8.857142857142858) internal successors, (62), 8 states have internal predecessors, (62), 2 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) [2023-11-29 07:02:35,619 INFO L276 IsEmpty]: Start isEmpty. Operand 719 states and 903 transitions. [2023-11-29 07:02:35,619 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2023-11-29 07:02:35,619 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 07:02:35,620 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, 1, 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 07:02:35,624 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2c6dc8-a580-46e1-b422-81b2f1468bab/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (39)] Forceful destruction successful, exit code 0 [2023-11-29 07:02:35,821 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42,39 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2c6dc8-a580-46e1-b422-81b2f1468bab/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 07:02:35,821 INFO L420 AbstractCegarLoop]: === Iteration 44 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2023-11-29 07:02:35,821 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 07:02:35,821 INFO L85 PathProgramCache]: Analyzing trace with hash -1735424739, now seen corresponding path program 1 times [2023-11-29 07:02:35,821 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 07:02:35,821 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [260842533] [2023-11-29 07:02:35,822 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:02:35,822 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 07:02:35,827 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 07:02:35,827 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [800023484] [2023-11-29 07:02:35,827 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:02:35,828 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 07:02:35,828 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2c6dc8-a580-46e1-b422-81b2f1468bab/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 07:02:35,828 INFO L229 MonitoredProcess]: Starting monitored process 40 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2c6dc8-a580-46e1-b422-81b2f1468bab/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 07:02:35,829 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2c6dc8-a580-46e1-b422-81b2f1468bab/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (40)] Waiting until timeout for monitored process [2023-11-29 07:02:35,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:02:35,873 INFO L262 TraceCheckSpWp]: Trace formula consists of 128 conjuncts, 18 conjunts are in the unsatisfiable core [2023-11-29 07:02:35,875 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 07:02:36,319 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 3 proven. 17 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-29 07:02:36,319 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 07:02:36,678 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 07:02:36,678 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [260842533] [2023-11-29 07:02:36,678 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 07:02:36,678 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [800023484] [2023-11-29 07:02:36,678 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [800023484] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 07:02:36,678 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 07:02:36,678 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2023-11-29 07:02:36,679 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [403681637] [2023-11-29 07:02:36,679 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 07:02:36,679 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-11-29 07:02:36,679 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 07:02:36,679 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-11-29 07:02:36,680 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=353, Unknown=0, NotChecked=0, Total=420 [2023-11-29 07:02:36,680 INFO L87 Difference]: Start difference. First operand 719 states and 903 transitions. Second operand has 13 states, 12 states have (on average 5.333333333333333) internal successors, (64), 13 states have internal predecessors, (64), 2 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) [2023-11-29 07:02:37,386 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 07:02:37,387 INFO L93 Difference]: Finished difference Result 769 states and 947 transitions. [2023-11-29 07:02:37,387 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-11-29 07:02:37,387 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 5.333333333333333) internal successors, (64), 13 states have internal predecessors, (64), 2 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) Word has length 70 [2023-11-29 07:02:37,387 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 07:02:37,391 INFO L225 Difference]: With dead ends: 769 [2023-11-29 07:02:37,391 INFO L226 Difference]: Without dead ends: 768 [2023-11-29 07:02:37,391 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 106 GetRequests, 81 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 128 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=125, Invalid=577, Unknown=0, NotChecked=0, Total=702 [2023-11-29 07:02:37,392 INFO L413 NwaCegarLoop]: 47 mSDtfsCounter, 283 mSDsluCounter, 316 mSDsCounter, 0 mSdLazyCounter, 1006 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 284 SdHoareTripleChecker+Valid, 363 SdHoareTripleChecker+Invalid, 1010 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1006 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-11-29 07:02:37,392 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [284 Valid, 363 Invalid, 1010 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 1006 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-11-29 07:02:37,393 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 768 states. [2023-11-29 07:02:37,430 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 768 to 719. [2023-11-29 07:02:37,431 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 719 states, 671 states have (on average 1.2876304023845007) internal successors, (864), 697 states have internal predecessors, (864), 19 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2023-11-29 07:02:37,433 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 719 states to 719 states and 902 transitions. [2023-11-29 07:02:37,433 INFO L78 Accepts]: Start accepts. Automaton has 719 states and 902 transitions. Word has length 70 [2023-11-29 07:02:37,433 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 07:02:37,434 INFO L495 AbstractCegarLoop]: Abstraction has 719 states and 902 transitions. [2023-11-29 07:02:37,434 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 5.333333333333333) internal successors, (64), 13 states have internal predecessors, (64), 2 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) [2023-11-29 07:02:37,434 INFO L276 IsEmpty]: Start isEmpty. Operand 719 states and 902 transitions. [2023-11-29 07:02:37,434 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2023-11-29 07:02:37,434 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 07:02:37,434 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 07:02:37,438 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2c6dc8-a580-46e1-b422-81b2f1468bab/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (40)] Ended with exit code 0 [2023-11-29 07:02:37,635 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 40 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2c6dc8-a580-46e1-b422-81b2f1468bab/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable43 [2023-11-29 07:02:37,635 INFO L420 AbstractCegarLoop]: === Iteration 45 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2023-11-29 07:02:37,635 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 07:02:37,635 INFO L85 PathProgramCache]: Analyzing trace with hash 2036408025, now seen corresponding path program 1 times [2023-11-29 07:02:37,635 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 07:02:37,635 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [717000047] [2023-11-29 07:02:37,636 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:02:37,636 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 07:02:37,640 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 07:02:37,641 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1146940887] [2023-11-29 07:02:37,641 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:02:37,641 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 07:02:37,641 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2c6dc8-a580-46e1-b422-81b2f1468bab/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 07:02:37,642 INFO L229 MonitoredProcess]: Starting monitored process 41 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2c6dc8-a580-46e1-b422-81b2f1468bab/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 07:02:37,643 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2c6dc8-a580-46e1-b422-81b2f1468bab/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (41)] Waiting until timeout for monitored process [2023-11-29 07:02:37,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:02:37,685 INFO L262 TraceCheckSpWp]: Trace formula consists of 129 conjuncts, 12 conjunts are in the unsatisfiable core [2023-11-29 07:02:37,686 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 07:02:37,974 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-29 07:02:37,975 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 07:02:38,252 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-29 07:02:38,252 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 07:02:38,252 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [717000047] [2023-11-29 07:02:38,252 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 07:02:38,252 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1146940887] [2023-11-29 07:02:38,252 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1146940887] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 07:02:38,252 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 07:02:38,252 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 15 [2023-11-29 07:02:38,252 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1103668764] [2023-11-29 07:02:38,252 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 07:02:38,253 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-11-29 07:02:38,253 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 07:02:38,253 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-11-29 07:02:38,254 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=195, Unknown=0, NotChecked=0, Total=240 [2023-11-29 07:02:38,254 INFO L87 Difference]: Start difference. First operand 719 states and 902 transitions. Second operand has 16 states, 15 states have (on average 7.533333333333333) internal successors, (113), 16 states have internal predecessors, (113), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2023-11-29 07:02:39,634 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 07:02:39,635 INFO L93 Difference]: Finished difference Result 872 states and 1067 transitions. [2023-11-29 07:02:39,635 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2023-11-29 07:02:39,635 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 7.533333333333333) internal successors, (113), 16 states have internal predecessors, (113), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) Word has length 71 [2023-11-29 07:02:39,635 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 07:02:39,640 INFO L225 Difference]: With dead ends: 872 [2023-11-29 07:02:39,640 INFO L226 Difference]: Without dead ends: 870 [2023-11-29 07:02:39,640 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 154 GetRequests, 126 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 148 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=185, Invalid=685, Unknown=0, NotChecked=0, Total=870 [2023-11-29 07:02:39,641 INFO L413 NwaCegarLoop]: 40 mSDtfsCounter, 507 mSDsluCounter, 268 mSDsCounter, 0 mSdLazyCounter, 994 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 508 SdHoareTripleChecker+Valid, 308 SdHoareTripleChecker+Invalid, 1020 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 994 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2023-11-29 07:02:39,641 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [508 Valid, 308 Invalid, 1020 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 994 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2023-11-29 07:02:39,642 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 870 states. [2023-11-29 07:02:39,675 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 870 to 718. [2023-11-29 07:02:39,676 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 718 states, 670 states have (on average 1.2895522388059701) internal successors, (864), 696 states have internal predecessors, (864), 19 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2023-11-29 07:02:39,677 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 718 states to 718 states and 902 transitions. [2023-11-29 07:02:39,678 INFO L78 Accepts]: Start accepts. Automaton has 718 states and 902 transitions. Word has length 71 [2023-11-29 07:02:39,678 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 07:02:39,678 INFO L495 AbstractCegarLoop]: Abstraction has 718 states and 902 transitions. [2023-11-29 07:02:39,678 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 7.533333333333333) internal successors, (113), 16 states have internal predecessors, (113), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2023-11-29 07:02:39,678 INFO L276 IsEmpty]: Start isEmpty. Operand 718 states and 902 transitions. [2023-11-29 07:02:39,678 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2023-11-29 07:02:39,678 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 07:02:39,678 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 07:02:39,682 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2c6dc8-a580-46e1-b422-81b2f1468bab/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (41)] Ended with exit code 0 [2023-11-29 07:02:39,879 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 41 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2c6dc8-a580-46e1-b422-81b2f1468bab/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable44 [2023-11-29 07:02:39,879 INFO L420 AbstractCegarLoop]: === Iteration 46 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2023-11-29 07:02:39,879 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 07:02:39,879 INFO L85 PathProgramCache]: Analyzing trace with hash -1295860577, now seen corresponding path program 1 times [2023-11-29 07:02:39,880 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 07:02:39,880 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1709893429] [2023-11-29 07:02:39,880 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:02:39,880 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 07:02:39,886 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 07:02:39,886 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [261622813] [2023-11-29 07:02:39,886 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:02:39,886 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 07:02:39,886 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2c6dc8-a580-46e1-b422-81b2f1468bab/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 07:02:39,887 INFO L229 MonitoredProcess]: Starting monitored process 42 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2c6dc8-a580-46e1-b422-81b2f1468bab/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 07:02:39,888 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2c6dc8-a580-46e1-b422-81b2f1468bab/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (42)] Waiting until timeout for monitored process [2023-11-29 07:02:39,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:02:39,928 INFO L262 TraceCheckSpWp]: Trace formula consists of 130 conjuncts, 11 conjunts are in the unsatisfiable core [2023-11-29 07:02:39,929 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 07:02:40,299 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 0 proven. 19 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-29 07:02:40,299 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 07:02:40,870 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 07:02:40,870 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1709893429] [2023-11-29 07:02:40,870 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 07:02:40,870 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [261622813] [2023-11-29 07:02:40,871 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [261622813] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 07:02:40,871 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 07:02:40,871 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2023-11-29 07:02:40,871 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1088942556] [2023-11-29 07:02:40,871 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 07:02:40,871 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-29 07:02:40,871 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 07:02:40,872 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-29 07:02:40,872 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=184, Unknown=0, NotChecked=0, Total=240 [2023-11-29 07:02:40,872 INFO L87 Difference]: Start difference. First operand 718 states and 902 transitions. Second operand has 9 states, 8 states have (on average 7.875) internal successors, (63), 9 states have internal predecessors, (63), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-11-29 07:02:42,254 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 07:02:42,254 INFO L93 Difference]: Finished difference Result 749 states and 928 transitions. [2023-11-29 07:02:42,255 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-29 07:02:42,255 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 7.875) internal successors, (63), 9 states have internal predecessors, (63), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 72 [2023-11-29 07:02:42,255 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 07:02:42,258 INFO L225 Difference]: With dead ends: 749 [2023-11-29 07:02:42,258 INFO L226 Difference]: Without dead ends: 747 [2023-11-29 07:02:42,258 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 107 GetRequests, 90 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=89, Invalid=253, Unknown=0, NotChecked=0, Total=342 [2023-11-29 07:02:42,259 INFO L413 NwaCegarLoop]: 60 mSDtfsCounter, 97 mSDsluCounter, 218 mSDsCounter, 0 mSdLazyCounter, 607 mSolverCounterSat, 4 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 97 SdHoareTripleChecker+Valid, 278 SdHoareTripleChecker+Invalid, 612 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 607 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2023-11-29 07:02:42,259 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [97 Valid, 278 Invalid, 612 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 607 Invalid, 1 Unknown, 0 Unchecked, 1.2s Time] [2023-11-29 07:02:42,259 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 747 states. [2023-11-29 07:02:42,291 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 747 to 721. [2023-11-29 07:02:42,292 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 721 states, 673 states have (on average 1.286775631500743) internal successors, (866), 699 states have internal predecessors, (866), 19 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2023-11-29 07:02:42,294 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 721 states to 721 states and 904 transitions. [2023-11-29 07:02:42,294 INFO L78 Accepts]: Start accepts. Automaton has 721 states and 904 transitions. Word has length 72 [2023-11-29 07:02:42,294 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 07:02:42,294 INFO L495 AbstractCegarLoop]: Abstraction has 721 states and 904 transitions. [2023-11-29 07:02:42,294 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 7.875) internal successors, (63), 9 states have internal predecessors, (63), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-11-29 07:02:42,294 INFO L276 IsEmpty]: Start isEmpty. Operand 721 states and 904 transitions. [2023-11-29 07:02:42,294 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2023-11-29 07:02:42,294 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 07:02:42,295 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 07:02:42,299 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2c6dc8-a580-46e1-b422-81b2f1468bab/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (42)] Ended with exit code 0 [2023-11-29 07:02:42,495 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 42 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2c6dc8-a580-46e1-b422-81b2f1468bab/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable45 [2023-11-29 07:02:42,495 INFO L420 AbstractCegarLoop]: === Iteration 47 === Targeting ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2023-11-29 07:02:42,495 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 07:02:42,495 INFO L85 PathProgramCache]: Analyzing trace with hash -2099405738, now seen corresponding path program 1 times [2023-11-29 07:02:42,496 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 07:02:42,496 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1301279106] [2023-11-29 07:02:42,496 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:02:42,496 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 07:02:42,502 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 07:02:42,502 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1162257136] [2023-11-29 07:02:42,502 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:02:42,503 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 07:02:42,503 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2c6dc8-a580-46e1-b422-81b2f1468bab/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 07:02:42,503 INFO L229 MonitoredProcess]: Starting monitored process 43 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2c6dc8-a580-46e1-b422-81b2f1468bab/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 07:02:42,504 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2c6dc8-a580-46e1-b422-81b2f1468bab/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (43)] Waiting until timeout for monitored process [2023-11-29 07:02:42,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:02:42,551 INFO L262 TraceCheckSpWp]: Trace formula consists of 136 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-29 07:02:42,553 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 07:02:42,760 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 25 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2023-11-29 07:02:42,760 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 07:02:42,885 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 25 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2023-11-29 07:02:42,885 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 07:02:42,885 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1301279106] [2023-11-29 07:02:42,886 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 07:02:42,886 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1162257136] [2023-11-29 07:02:42,886 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1162257136] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 07:02:42,886 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 07:02:42,886 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 9 [2023-11-29 07:02:42,886 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [876152800] [2023-11-29 07:02:42,886 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 07:02:42,886 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-29 07:02:42,887 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 07:02:42,887 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-29 07:02:42,887 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2023-11-29 07:02:42,887 INFO L87 Difference]: Start difference. First operand 721 states and 904 transitions. Second operand has 10 states, 9 states have (on average 13.555555555555555) internal successors, (122), 10 states have internal predecessors, (122), 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 07:02:43,286 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 07:02:43,286 INFO L93 Difference]: Finished difference Result 970 states and 1173 transitions. [2023-11-29 07:02:43,287 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-29 07:02:43,287 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 13.555555555555555) internal successors, (122), 10 states have internal predecessors, (122), 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 78 [2023-11-29 07:02:43,287 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 07:02:43,291 INFO L225 Difference]: With dead ends: 970 [2023-11-29 07:02:43,291 INFO L226 Difference]: Without dead ends: 968 [2023-11-29 07:02:43,292 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 159 GetRequests, 146 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=77, Invalid=133, Unknown=0, NotChecked=0, Total=210 [2023-11-29 07:02:43,292 INFO L413 NwaCegarLoop]: 54 mSDtfsCounter, 1403 mSDsluCounter, 193 mSDsCounter, 0 mSdLazyCounter, 319 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1404 SdHoareTripleChecker+Valid, 247 SdHoareTripleChecker+Invalid, 349 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 319 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-29 07:02:43,292 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1404 Valid, 247 Invalid, 349 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 319 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-29 07:02:43,293 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 968 states. [2023-11-29 07:02:43,368 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 968 to 816. [2023-11-29 07:02:43,369 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 816 states, 765 states have (on average 1.2823529411764707) internal successors, (981), 791 states have internal predecessors, (981), 22 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (22), 22 states have call predecessors, (22), 22 states have call successors, (22) [2023-11-29 07:02:43,371 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 816 states to 816 states and 1025 transitions. [2023-11-29 07:02:43,371 INFO L78 Accepts]: Start accepts. Automaton has 816 states and 1025 transitions. Word has length 78 [2023-11-29 07:02:43,372 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 07:02:43,372 INFO L495 AbstractCegarLoop]: Abstraction has 816 states and 1025 transitions. [2023-11-29 07:02:43,372 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 13.555555555555555) internal successors, (122), 10 states have internal predecessors, (122), 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 07:02:43,372 INFO L276 IsEmpty]: Start isEmpty. Operand 816 states and 1025 transitions. [2023-11-29 07:02:43,373 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2023-11-29 07:02:43,373 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 07:02:43,373 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 07:02:43,378 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2c6dc8-a580-46e1-b422-81b2f1468bab/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (43)] Ended with exit code 0 [2023-11-29 07:02:43,573 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 43 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2c6dc8-a580-46e1-b422-81b2f1468bab/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable46 [2023-11-29 07:02:43,574 INFO L420 AbstractCegarLoop]: === Iteration 48 === Targeting ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2023-11-29 07:02:43,574 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 07:02:43,574 INFO L85 PathProgramCache]: Analyzing trace with hash -657068333, now seen corresponding path program 1 times [2023-11-29 07:02:43,574 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 07:02:43,574 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1555469356] [2023-11-29 07:02:43,574 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:02:43,574 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 07:02:43,583 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 07:02:43,583 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [20025962] [2023-11-29 07:02:43,583 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:02:43,583 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 07:02:43,584 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2c6dc8-a580-46e1-b422-81b2f1468bab/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 07:02:43,584 INFO L229 MonitoredProcess]: Starting monitored process 44 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2c6dc8-a580-46e1-b422-81b2f1468bab/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 07:02:43,585 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2c6dc8-a580-46e1-b422-81b2f1468bab/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (44)] Waiting until timeout for monitored process [2023-11-29 07:02:43,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:02:43,640 INFO L262 TraceCheckSpWp]: Trace formula consists of 137 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-29 07:02:43,642 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 07:02:43,808 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 26 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2023-11-29 07:02:43,808 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 07:02:43,988 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 26 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2023-11-29 07:02:43,988 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 07:02:43,988 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1555469356] [2023-11-29 07:02:43,988 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 07:02:43,989 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [20025962] [2023-11-29 07:02:43,989 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [20025962] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 07:02:43,989 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 07:02:43,989 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 9 [2023-11-29 07:02:43,989 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [636534914] [2023-11-29 07:02:43,989 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 07:02:43,990 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-29 07:02:43,990 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 07:02:43,990 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-29 07:02:43,990 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2023-11-29 07:02:43,990 INFO L87 Difference]: Start difference. First operand 816 states and 1025 transitions. Second operand has 10 states, 9 states have (on average 13.777777777777779) internal successors, (124), 10 states have internal predecessors, (124), 6 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 6 states have call predecessors, (8), 6 states have call successors, (8) [2023-11-29 07:02:44,512 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 07:02:44,512 INFO L93 Difference]: Finished difference Result 1004 states and 1209 transitions. [2023-11-29 07:02:44,513 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-29 07:02:44,513 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 13.777777777777779) internal successors, (124), 10 states have internal predecessors, (124), 6 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 6 states have call predecessors, (8), 6 states have call successors, (8) Word has length 79 [2023-11-29 07:02:44,513 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 07:02:44,518 INFO L225 Difference]: With dead ends: 1004 [2023-11-29 07:02:44,518 INFO L226 Difference]: Without dead ends: 1003 [2023-11-29 07:02:44,519 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 164 GetRequests, 148 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=103, Invalid=203, Unknown=0, NotChecked=0, Total=306 [2023-11-29 07:02:44,520 INFO L413 NwaCegarLoop]: 73 mSDtfsCounter, 466 mSDsluCounter, 232 mSDsCounter, 0 mSdLazyCounter, 478 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 467 SdHoareTripleChecker+Valid, 305 SdHoareTripleChecker+Invalid, 492 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 478 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-29 07:02:44,520 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [467 Valid, 305 Invalid, 492 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 478 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-29 07:02:44,521 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1003 states. [2023-11-29 07:02:44,580 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1003 to 819. [2023-11-29 07:02:44,581 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 819 states, 768 states have (on average 1.2760416666666667) internal successors, (980), 794 states have internal predecessors, (980), 22 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (22), 22 states have call predecessors, (22), 22 states have call successors, (22) [2023-11-29 07:02:44,582 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 819 states to 819 states and 1024 transitions. [2023-11-29 07:02:44,582 INFO L78 Accepts]: Start accepts. Automaton has 819 states and 1024 transitions. Word has length 79 [2023-11-29 07:02:44,583 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 07:02:44,583 INFO L495 AbstractCegarLoop]: Abstraction has 819 states and 1024 transitions. [2023-11-29 07:02:44,583 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 13.777777777777779) internal successors, (124), 10 states have internal predecessors, (124), 6 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 6 states have call predecessors, (8), 6 states have call successors, (8) [2023-11-29 07:02:44,583 INFO L276 IsEmpty]: Start isEmpty. Operand 819 states and 1024 transitions. [2023-11-29 07:02:44,583 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2023-11-29 07:02:44,584 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 07:02:44,584 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 07:02:44,589 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2c6dc8-a580-46e1-b422-81b2f1468bab/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (44)] Ended with exit code 0 [2023-11-29 07:02:44,784 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 44 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2c6dc8-a580-46e1-b422-81b2f1468bab/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable47 [2023-11-29 07:02:44,784 INFO L420 AbstractCegarLoop]: === Iteration 49 === Targeting ULTIMATE.startErr37ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2023-11-29 07:02:44,784 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 07:02:44,785 INFO L85 PathProgramCache]: Analyzing trace with hash 1641946656, now seen corresponding path program 1 times [2023-11-29 07:02:44,785 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 07:02:44,785 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [268140092] [2023-11-29 07:02:44,785 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:02:44,785 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 07:02:44,791 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 07:02:44,791 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1615929564] [2023-11-29 07:02:44,791 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:02:44,791 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 07:02:44,791 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2c6dc8-a580-46e1-b422-81b2f1468bab/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 07:02:44,792 INFO L229 MonitoredProcess]: Starting monitored process 45 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2c6dc8-a580-46e1-b422-81b2f1468bab/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 07:02:44,793 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2c6dc8-a580-46e1-b422-81b2f1468bab/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (45)] Waiting until timeout for monitored process [2023-11-29 07:02:44,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:02:44,843 INFO L262 TraceCheckSpWp]: Trace formula consists of 142 conjuncts, 13 conjunts are in the unsatisfiable core [2023-11-29 07:02:44,844 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 07:02:44,990 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2023-11-29 07:02:44,990 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 07:02:45,118 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2023-11-29 07:02:45,118 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 07:02:45,118 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [268140092] [2023-11-29 07:02:45,119 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 07:02:45,119 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1615929564] [2023-11-29 07:02:45,119 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1615929564] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 07:02:45,119 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 07:02:45,119 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 11 [2023-11-29 07:02:45,119 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [471021976] [2023-11-29 07:02:45,119 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 07:02:45,119 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-29 07:02:45,120 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 07:02:45,120 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-29 07:02:45,120 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2023-11-29 07:02:45,120 INFO L87 Difference]: Start difference. First operand 819 states and 1024 transitions. Second operand has 12 states, 11 states have (on average 11.0) internal successors, (121), 12 states have internal predecessors, (121), 5 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 5 states have call predecessors, (6), 5 states have call successors, (6) [2023-11-29 07:02:47,486 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 07:02:47,486 INFO L93 Difference]: Finished difference Result 944 states and 1152 transitions. [2023-11-29 07:02:47,486 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-29 07:02:47,486 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 11.0) internal successors, (121), 12 states have internal predecessors, (121), 5 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 5 states have call predecessors, (6), 5 states have call successors, (6) Word has length 80 [2023-11-29 07:02:47,487 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 07:02:47,490 INFO L225 Difference]: With dead ends: 944 [2023-11-29 07:02:47,490 INFO L226 Difference]: Without dead ends: 941 [2023-11-29 07:02:47,490 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 164 GetRequests, 148 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=86, Invalid=220, Unknown=0, NotChecked=0, Total=306 [2023-11-29 07:02:47,491 INFO L413 NwaCegarLoop]: 123 mSDtfsCounter, 399 mSDsluCounter, 738 mSDsCounter, 0 mSdLazyCounter, 358 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 399 SdHoareTripleChecker+Valid, 861 SdHoareTripleChecker+Invalid, 366 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 358 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2023-11-29 07:02:47,491 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [399 Valid, 861 Invalid, 366 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 358 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2023-11-29 07:02:47,492 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 941 states. [2023-11-29 07:02:47,535 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 941 to 847. [2023-11-29 07:02:47,535 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 847 states, 795 states have (on average 1.270440251572327) internal successors, (1010), 821 states have internal predecessors, (1010), 23 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) [2023-11-29 07:02:47,536 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 847 states to 847 states and 1056 transitions. [2023-11-29 07:02:47,537 INFO L78 Accepts]: Start accepts. Automaton has 847 states and 1056 transitions. Word has length 80 [2023-11-29 07:02:47,537 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 07:02:47,537 INFO L495 AbstractCegarLoop]: Abstraction has 847 states and 1056 transitions. [2023-11-29 07:02:47,537 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 11.0) internal successors, (121), 12 states have internal predecessors, (121), 5 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 5 states have call predecessors, (6), 5 states have call successors, (6) [2023-11-29 07:02:47,537 INFO L276 IsEmpty]: Start isEmpty. Operand 847 states and 1056 transitions. [2023-11-29 07:02:47,537 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2023-11-29 07:02:47,537 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 07:02:47,537 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 07:02:47,542 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2c6dc8-a580-46e1-b422-81b2f1468bab/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (45)] Forceful destruction successful, exit code 0 [2023-11-29 07:02:47,738 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 45 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2c6dc8-a580-46e1-b422-81b2f1468bab/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable48 [2023-11-29 07:02:47,738 INFO L420 AbstractCegarLoop]: === Iteration 50 === Targeting ULTIMATE.startErr31ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2023-11-29 07:02:47,738 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 07:02:47,738 INFO L85 PathProgramCache]: Analyzing trace with hash 498464703, now seen corresponding path program 1 times [2023-11-29 07:02:47,738 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 07:02:47,738 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [964540984] [2023-11-29 07:02:47,739 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:02:47,739 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 07:02:47,745 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 07:02:47,746 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [506993827] [2023-11-29 07:02:47,746 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:02:47,746 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 07:02:47,746 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2c6dc8-a580-46e1-b422-81b2f1468bab/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 07:02:47,747 INFO L229 MonitoredProcess]: Starting monitored process 46 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2c6dc8-a580-46e1-b422-81b2f1468bab/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 07:02:47,747 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2c6dc8-a580-46e1-b422-81b2f1468bab/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (46)] Waiting until timeout for monitored process [2023-11-29 07:02:47,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:02:47,795 INFO L262 TraceCheckSpWp]: Trace formula consists of 139 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-29 07:02:47,796 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 07:02:47,939 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2023-11-29 07:02:47,939 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 07:02:48,130 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2023-11-29 07:02:48,130 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 07:02:48,130 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [964540984] [2023-11-29 07:02:48,131 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 07:02:48,131 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [506993827] [2023-11-29 07:02:48,131 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [506993827] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 07:02:48,131 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 07:02:48,131 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 7 [2023-11-29 07:02:48,131 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [470672357] [2023-11-29 07:02:48,131 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 07:02:48,132 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-29 07:02:48,132 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 07:02:48,132 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-29 07:02:48,132 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2023-11-29 07:02:48,133 INFO L87 Difference]: Start difference. First operand 847 states and 1056 transitions. Second operand has 8 states, 7 states have (on average 17.571428571428573) internal successors, (123), 8 states have internal predecessors, (123), 5 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 5 states have call predecessors, (6), 5 states have call successors, (6) [2023-11-29 07:02:48,986 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 07:02:48,986 INFO L93 Difference]: Finished difference Result 1336 states and 1631 transitions. [2023-11-29 07:02:48,986 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-29 07:02:48,986 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 17.571428571428573) internal successors, (123), 8 states have internal predecessors, (123), 5 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 5 states have call predecessors, (6), 5 states have call successors, (6) Word has length 81 [2023-11-29 07:02:48,987 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 07:02:48,993 INFO L225 Difference]: With dead ends: 1336 [2023-11-29 07:02:48,993 INFO L226 Difference]: Without dead ends: 1335 [2023-11-29 07:02:48,993 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 165 GetRequests, 154 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=58, Invalid=98, Unknown=0, NotChecked=0, Total=156 [2023-11-29 07:02:48,994 INFO L413 NwaCegarLoop]: 102 mSDtfsCounter, 299 mSDsluCounter, 364 mSDsCounter, 0 mSdLazyCounter, 613 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 299 SdHoareTripleChecker+Valid, 466 SdHoareTripleChecker+Invalid, 623 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 613 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-11-29 07:02:48,994 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [299 Valid, 466 Invalid, 623 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 613 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-11-29 07:02:48,995 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1335 states. [2023-11-29 07:02:49,058 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1335 to 1072. [2023-11-29 07:02:49,059 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1072 states, 1013 states have (on average 1.2892398815399801) internal successors, (1306), 1039 states have internal predecessors, (1306), 30 states have call successors, (30), 2 states have call predecessors, (30), 2 states have return successors, (30), 30 states have call predecessors, (30), 30 states have call successors, (30) [2023-11-29 07:02:49,060 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1072 states to 1072 states and 1366 transitions. [2023-11-29 07:02:49,060 INFO L78 Accepts]: Start accepts. Automaton has 1072 states and 1366 transitions. Word has length 81 [2023-11-29 07:02:49,060 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 07:02:49,060 INFO L495 AbstractCegarLoop]: Abstraction has 1072 states and 1366 transitions. [2023-11-29 07:02:49,061 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 17.571428571428573) internal successors, (123), 8 states have internal predecessors, (123), 5 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 5 states have call predecessors, (6), 5 states have call successors, (6) [2023-11-29 07:02:49,061 INFO L276 IsEmpty]: Start isEmpty. Operand 1072 states and 1366 transitions. [2023-11-29 07:02:49,061 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2023-11-29 07:02:49,061 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 07:02:49,061 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 07:02:49,065 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2c6dc8-a580-46e1-b422-81b2f1468bab/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (46)] Forceful destruction successful, exit code 0 [2023-11-29 07:02:49,261 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 46 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2c6dc8-a580-46e1-b422-81b2f1468bab/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable49 [2023-11-29 07:02:49,262 INFO L420 AbstractCegarLoop]: === Iteration 51 === Targeting ULTIMATE.startErr35ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2023-11-29 07:02:49,262 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 07:02:49,262 INFO L85 PathProgramCache]: Analyzing trace with hash 1738350956, now seen corresponding path program 1 times [2023-11-29 07:02:49,262 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 07:02:49,262 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2032457120] [2023-11-29 07:02:49,262 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:02:49,262 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 07:02:49,269 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 07:02:49,269 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [160802113] [2023-11-29 07:02:49,269 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:02:49,269 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 07:02:49,269 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2c6dc8-a580-46e1-b422-81b2f1468bab/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 07:02:49,270 INFO L229 MonitoredProcess]: Starting monitored process 47 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2c6dc8-a580-46e1-b422-81b2f1468bab/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 07:02:49,271 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2c6dc8-a580-46e1-b422-81b2f1468bab/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (47)] Waiting until timeout for monitored process [2023-11-29 07:02:49,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:02:49,315 INFO L262 TraceCheckSpWp]: Trace formula consists of 143 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-29 07:02:49,316 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 07:02:49,375 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 0 proven. 29 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2023-11-29 07:02:49,375 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 07:02:49,452 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 0 proven. 29 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2023-11-29 07:02:49,452 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 07:02:49,452 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2032457120] [2023-11-29 07:02:49,452 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 07:02:49,452 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [160802113] [2023-11-29 07:02:49,452 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [160802113] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 07:02:49,452 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 07:02:49,452 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 9 [2023-11-29 07:02:49,453 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [413596473] [2023-11-29 07:02:49,453 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 07:02:49,453 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-29 07:02:49,453 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 07:02:49,454 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-29 07:02:49,454 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2023-11-29 07:02:49,454 INFO L87 Difference]: Start difference. First operand 1072 states and 1366 transitions. Second operand has 10 states, 9 states have (on average 13.88888888888889) internal successors, (125), 10 states have internal predecessors, (125), 5 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 5 states have call predecessors, (6), 5 states have call successors, (6) [2023-11-29 07:02:49,876 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 07:02:49,876 INFO L93 Difference]: Finished difference Result 1590 states and 1972 transitions. [2023-11-29 07:02:49,876 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-29 07:02:49,876 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 13.88888888888889) internal successors, (125), 10 states have internal predecessors, (125), 5 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 5 states have call predecessors, (6), 5 states have call successors, (6) Word has length 82 [2023-11-29 07:02:49,876 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 07:02:49,882 INFO L225 Difference]: With dead ends: 1590 [2023-11-29 07:02:49,882 INFO L226 Difference]: Without dead ends: 1589 [2023-11-29 07:02:49,882 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 166 GetRequests, 154 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182 [2023-11-29 07:02:49,883 INFO L413 NwaCegarLoop]: 89 mSDtfsCounter, 218 mSDsluCounter, 402 mSDsCounter, 0 mSdLazyCounter, 97 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 218 SdHoareTripleChecker+Valid, 491 SdHoareTripleChecker+Invalid, 98 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 97 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-29 07:02:49,883 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [218 Valid, 491 Invalid, 98 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 97 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-29 07:02:49,884 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1589 states. [2023-11-29 07:02:49,973 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1589 to 1311. [2023-11-29 07:02:49,974 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1311 states, 1247 states have (on average 1.280673616680032) internal successors, (1597), 1273 states have internal predecessors, (1597), 35 states have call successors, (35), 2 states have call predecessors, (35), 2 states have return successors, (35), 35 states have call predecessors, (35), 35 states have call successors, (35) [2023-11-29 07:02:49,976 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1311 states to 1311 states and 1667 transitions. [2023-11-29 07:02:49,976 INFO L78 Accepts]: Start accepts. Automaton has 1311 states and 1667 transitions. Word has length 82 [2023-11-29 07:02:49,976 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 07:02:49,976 INFO L495 AbstractCegarLoop]: Abstraction has 1311 states and 1667 transitions. [2023-11-29 07:02:49,976 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 13.88888888888889) internal successors, (125), 10 states have internal predecessors, (125), 5 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 5 states have call predecessors, (6), 5 states have call successors, (6) [2023-11-29 07:02:49,976 INFO L276 IsEmpty]: Start isEmpty. Operand 1311 states and 1667 transitions. [2023-11-29 07:02:49,977 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2023-11-29 07:02:49,977 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 07:02:49,977 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 07:02:49,980 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2c6dc8-a580-46e1-b422-81b2f1468bab/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (47)] Ended with exit code 0 [2023-11-29 07:02:50,177 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50,47 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2c6dc8-a580-46e1-b422-81b2f1468bab/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 07:02:50,177 INFO L420 AbstractCegarLoop]: === Iteration 52 === Targeting ULTIMATE.startErr30ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2023-11-29 07:02:50,177 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 07:02:50,178 INFO L85 PathProgramCache]: Analyzing trace with hash 634608902, now seen corresponding path program 1 times [2023-11-29 07:02:50,178 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 07:02:50,178 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [255259956] [2023-11-29 07:02:50,178 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:02:50,178 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 07:02:50,183 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 07:02:50,183 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1950843384] [2023-11-29 07:02:50,183 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:02:50,183 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 07:02:50,184 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2c6dc8-a580-46e1-b422-81b2f1468bab/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 07:02:50,184 INFO L229 MonitoredProcess]: Starting monitored process 48 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2c6dc8-a580-46e1-b422-81b2f1468bab/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 07:02:50,185 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2c6dc8-a580-46e1-b422-81b2f1468bab/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (48)] Waiting until timeout for monitored process [2023-11-29 07:02:50,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:02:50,231 INFO L262 TraceCheckSpWp]: Trace formula consists of 146 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-29 07:02:50,233 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 07:02:50,437 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 0 proven. 27 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2023-11-29 07:02:50,437 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 07:02:50,652 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 0 proven. 27 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2023-11-29 07:02:50,653 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 07:02:50,653 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [255259956] [2023-11-29 07:02:50,653 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 07:02:50,653 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1950843384] [2023-11-29 07:02:50,653 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1950843384] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 07:02:50,653 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 07:02:50,653 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 9 [2023-11-29 07:02:50,653 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [419569599] [2023-11-29 07:02:50,653 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 07:02:50,654 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-29 07:02:50,654 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 07:02:50,654 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-29 07:02:50,654 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2023-11-29 07:02:50,654 INFO L87 Difference]: Start difference. First operand 1311 states and 1667 transitions. Second operand has 10 states, 9 states have (on average 14.88888888888889) internal successors, (134), 10 states have internal predecessors, (134), 6 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 6 states have call predecessors, (8), 6 states have call successors, (8) [2023-11-29 07:02:51,569 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 07:02:51,569 INFO L93 Difference]: Finished difference Result 1454 states and 1799 transitions. [2023-11-29 07:02:51,570 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-29 07:02:51,570 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 14.88888888888889) internal successors, (134), 10 states have internal predecessors, (134), 6 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 6 states have call predecessors, (8), 6 states have call successors, (8) Word has length 84 [2023-11-29 07:02:51,570 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 07:02:51,575 INFO L225 Difference]: With dead ends: 1454 [2023-11-29 07:02:51,575 INFO L226 Difference]: Without dead ends: 1453 [2023-11-29 07:02:51,575 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 170 GetRequests, 158 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=72, Invalid=110, Unknown=0, NotChecked=0, Total=182 [2023-11-29 07:02:51,576 INFO L413 NwaCegarLoop]: 84 mSDtfsCounter, 686 mSDsluCounter, 315 mSDsCounter, 0 mSdLazyCounter, 582 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 686 SdHoareTripleChecker+Valid, 399 SdHoareTripleChecker+Invalid, 603 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 582 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-11-29 07:02:51,576 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [686 Valid, 399 Invalid, 603 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 582 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-11-29 07:02:51,577 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1453 states. [2023-11-29 07:02:51,647 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1453 to 1337. [2023-11-29 07:02:51,648 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1337 states, 1273 states have (on average 1.2741555380989789) internal successors, (1622), 1299 states have internal predecessors, (1622), 35 states have call successors, (35), 2 states have call predecessors, (35), 2 states have return successors, (35), 35 states have call predecessors, (35), 35 states have call successors, (35) [2023-11-29 07:02:51,649 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1337 states to 1337 states and 1692 transitions. [2023-11-29 07:02:51,650 INFO L78 Accepts]: Start accepts. Automaton has 1337 states and 1692 transitions. Word has length 84 [2023-11-29 07:02:51,650 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 07:02:51,650 INFO L495 AbstractCegarLoop]: Abstraction has 1337 states and 1692 transitions. [2023-11-29 07:02:51,650 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 14.88888888888889) internal successors, (134), 10 states have internal predecessors, (134), 6 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 6 states have call predecessors, (8), 6 states have call successors, (8) [2023-11-29 07:02:51,650 INFO L276 IsEmpty]: Start isEmpty. Operand 1337 states and 1692 transitions. [2023-11-29 07:02:51,650 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2023-11-29 07:02:51,650 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 07:02:51,650 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 07:02:51,654 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2c6dc8-a580-46e1-b422-81b2f1468bab/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (48)] Forceful destruction successful, exit code 0 [2023-11-29 07:02:51,851 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 48 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2c6dc8-a580-46e1-b422-81b2f1468bab/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable51 [2023-11-29 07:02:51,851 INFO L420 AbstractCegarLoop]: === Iteration 53 === Targeting ULTIMATE.startErr31ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2023-11-29 07:02:51,851 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 07:02:51,851 INFO L85 PathProgramCache]: Analyzing trace with hash -1801960399, now seen corresponding path program 1 times [2023-11-29 07:02:51,851 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 07:02:51,851 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [493495897] [2023-11-29 07:02:51,851 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:02:51,852 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 07:02:51,857 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 07:02:51,857 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [434525151] [2023-11-29 07:02:51,857 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:02:51,858 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 07:02:51,858 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2c6dc8-a580-46e1-b422-81b2f1468bab/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 07:02:51,858 INFO L229 MonitoredProcess]: Starting monitored process 49 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2c6dc8-a580-46e1-b422-81b2f1468bab/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 07:02:51,859 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2c6dc8-a580-46e1-b422-81b2f1468bab/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (49)] Waiting until timeout for monitored process [2023-11-29 07:02:51,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:02:51,903 INFO L262 TraceCheckSpWp]: Trace formula consists of 147 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-29 07:02:51,905 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 07:02:52,241 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2023-11-29 07:02:52,241 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 07:02:52,522 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2023-11-29 07:02:52,523 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 07:02:52,523 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [493495897] [2023-11-29 07:02:52,523 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 07:02:52,523 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [434525151] [2023-11-29 07:02:52,523 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [434525151] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 07:02:52,523 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 07:02:52,523 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 13 [2023-11-29 07:02:52,523 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1378860339] [2023-11-29 07:02:52,523 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 07:02:52,524 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-11-29 07:02:52,524 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 07:02:52,524 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-11-29 07:02:52,524 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=126, Unknown=0, NotChecked=0, Total=182 [2023-11-29 07:02:52,525 INFO L87 Difference]: Start difference. First operand 1337 states and 1692 transitions. Second operand has 14 states, 13 states have (on average 10.384615384615385) internal successors, (135), 14 states have internal predecessors, (135), 7 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2023-11-29 07:02:53,487 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 07:02:53,487 INFO L93 Difference]: Finished difference Result 1411 states and 1762 transitions. [2023-11-29 07:02:53,487 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-11-29 07:02:53,487 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 10.384615384615385) internal successors, (135), 14 states have internal predecessors, (135), 7 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) Word has length 85 [2023-11-29 07:02:53,488 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 07:02:53,492 INFO L225 Difference]: With dead ends: 1411 [2023-11-29 07:02:53,492 INFO L226 Difference]: Without dead ends: 1410 [2023-11-29 07:02:53,493 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 177 GetRequests, 156 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 80 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=178, Invalid=328, Unknown=0, NotChecked=0, Total=506 [2023-11-29 07:02:53,493 INFO L413 NwaCegarLoop]: 72 mSDtfsCounter, 566 mSDsluCounter, 323 mSDsCounter, 0 mSdLazyCounter, 767 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 567 SdHoareTripleChecker+Valid, 395 SdHoareTripleChecker+Invalid, 783 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 767 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-11-29 07:02:53,493 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [567 Valid, 395 Invalid, 783 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 767 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-11-29 07:02:53,494 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1410 states. [2023-11-29 07:02:53,569 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1410 to 1337. [2023-11-29 07:02:53,570 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1337 states, 1273 states have (on average 1.2717989002356638) internal successors, (1619), 1299 states have internal predecessors, (1619), 35 states have call successors, (35), 2 states have call predecessors, (35), 2 states have return successors, (35), 35 states have call predecessors, (35), 35 states have call successors, (35) [2023-11-29 07:02:53,572 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1337 states to 1337 states and 1689 transitions. [2023-11-29 07:02:53,572 INFO L78 Accepts]: Start accepts. Automaton has 1337 states and 1689 transitions. Word has length 85 [2023-11-29 07:02:53,572 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 07:02:53,572 INFO L495 AbstractCegarLoop]: Abstraction has 1337 states and 1689 transitions. [2023-11-29 07:02:53,572 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 10.384615384615385) internal successors, (135), 14 states have internal predecessors, (135), 7 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2023-11-29 07:02:53,573 INFO L276 IsEmpty]: Start isEmpty. Operand 1337 states and 1689 transitions. [2023-11-29 07:02:53,573 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2023-11-29 07:02:53,573 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 07:02:53,573 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 07:02:53,577 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2c6dc8-a580-46e1-b422-81b2f1468bab/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (49)] Ended with exit code 0 [2023-11-29 07:02:53,773 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 49 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2c6dc8-a580-46e1-b422-81b2f1468bab/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable52 [2023-11-29 07:02:53,774 INFO L420 AbstractCegarLoop]: === Iteration 54 === Targeting ULTIMATE.startErr43ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2023-11-29 07:02:53,774 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 07:02:53,774 INFO L85 PathProgramCache]: Analyzing trace with hash -1903468058, now seen corresponding path program 1 times [2023-11-29 07:02:53,774 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 07:02:53,774 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [226216026] [2023-11-29 07:02:53,774 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:02:53,774 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 07:02:53,781 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 07:02:53,781 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1490839158] [2023-11-29 07:02:53,781 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:02:53,782 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 07:02:53,782 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2c6dc8-a580-46e1-b422-81b2f1468bab/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 07:02:53,782 INFO L229 MonitoredProcess]: Starting monitored process 50 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2c6dc8-a580-46e1-b422-81b2f1468bab/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 07:02:53,783 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2c6dc8-a580-46e1-b422-81b2f1468bab/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (50)] Waiting until timeout for monitored process [2023-11-29 07:02:53,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:02:53,829 INFO L262 TraceCheckSpWp]: Trace formula consists of 152 conjuncts, 14 conjunts are in the unsatisfiable core [2023-11-29 07:02:53,831 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 07:02:53,988 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2023-11-29 07:02:53,988 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 07:02:54,133 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2023-11-29 07:02:54,134 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 07:02:54,134 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [226216026] [2023-11-29 07:02:54,134 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 07:02:54,134 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1490839158] [2023-11-29 07:02:54,134 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1490839158] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 07:02:54,134 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 07:02:54,134 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 13 [2023-11-29 07:02:54,134 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [387022362] [2023-11-29 07:02:54,135 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 07:02:54,135 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-11-29 07:02:54,135 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 07:02:54,135 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-11-29 07:02:54,136 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=143, Unknown=0, NotChecked=0, Total=182 [2023-11-29 07:02:54,136 INFO L87 Difference]: Start difference. First operand 1337 states and 1689 transitions. Second operand has 14 states, 13 states have (on average 10.23076923076923) internal successors, (133), 14 states have internal predecessors, (133), 5 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 5 states have call predecessors, (6), 5 states have call successors, (6) [2023-11-29 07:02:55,536 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 07:02:55,536 INFO L93 Difference]: Finished difference Result 1447 states and 1794 transitions. [2023-11-29 07:02:55,537 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2023-11-29 07:02:55,537 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 10.23076923076923) internal successors, (133), 14 states have internal predecessors, (133), 5 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 5 states have call predecessors, (6), 5 states have call successors, (6) Word has length 86 [2023-11-29 07:02:55,537 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 07:02:55,542 INFO L225 Difference]: With dead ends: 1447 [2023-11-29 07:02:55,542 INFO L226 Difference]: Without dead ends: 1446 [2023-11-29 07:02:55,542 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 183 GetRequests, 158 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 97 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=176, Invalid=526, Unknown=0, NotChecked=0, Total=702 [2023-11-29 07:02:55,543 INFO L413 NwaCegarLoop]: 76 mSDtfsCounter, 620 mSDsluCounter, 488 mSDsCounter, 0 mSdLazyCounter, 715 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 621 SdHoareTripleChecker+Valid, 564 SdHoareTripleChecker+Invalid, 730 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 715 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2023-11-29 07:02:55,543 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [621 Valid, 564 Invalid, 730 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 715 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2023-11-29 07:02:55,544 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1446 states. [2023-11-29 07:02:55,613 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1446 to 1349. [2023-11-29 07:02:55,619 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1349 states, 1285 states have (on average 1.272373540856031) internal successors, (1635), 1311 states have internal predecessors, (1635), 35 states have call successors, (35), 2 states have call predecessors, (35), 2 states have return successors, (35), 35 states have call predecessors, (35), 35 states have call successors, (35) [2023-11-29 07:02:55,620 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1349 states to 1349 states and 1705 transitions. [2023-11-29 07:02:55,621 INFO L78 Accepts]: Start accepts. Automaton has 1349 states and 1705 transitions. Word has length 86 [2023-11-29 07:02:55,621 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 07:02:55,621 INFO L495 AbstractCegarLoop]: Abstraction has 1349 states and 1705 transitions. [2023-11-29 07:02:55,621 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 10.23076923076923) internal successors, (133), 14 states have internal predecessors, (133), 5 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 5 states have call predecessors, (6), 5 states have call successors, (6) [2023-11-29 07:02:55,621 INFO L276 IsEmpty]: Start isEmpty. Operand 1349 states and 1705 transitions. [2023-11-29 07:02:55,622 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2023-11-29 07:02:55,622 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 07:02:55,622 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 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 07:02:55,626 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2c6dc8-a580-46e1-b422-81b2f1468bab/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (50)] Forceful destruction successful, exit code 0 [2023-11-29 07:02:55,822 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable53,50 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2c6dc8-a580-46e1-b422-81b2f1468bab/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 07:02:55,823 INFO L420 AbstractCegarLoop]: === Iteration 55 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2023-11-29 07:02:55,823 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 07:02:55,823 INFO L85 PathProgramCache]: Analyzing trace with hash 295167100, now seen corresponding path program 1 times [2023-11-29 07:02:55,823 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 07:02:55,823 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [454128185] [2023-11-29 07:02:55,823 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:02:55,823 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 07:02:55,829 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 07:02:55,830 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1989968522] [2023-11-29 07:02:55,830 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:02:55,830 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 07:02:55,830 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2c6dc8-a580-46e1-b422-81b2f1468bab/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 07:02:55,831 INFO L229 MonitoredProcess]: Starting monitored process 51 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2c6dc8-a580-46e1-b422-81b2f1468bab/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 07:02:55,832 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2c6dc8-a580-46e1-b422-81b2f1468bab/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (51)] Waiting until timeout for monitored process [2023-11-29 07:02:55,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:02:55,883 INFO L262 TraceCheckSpWp]: Trace formula consists of 156 conjuncts, 16 conjunts are in the unsatisfiable core [2023-11-29 07:02:55,885 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 07:02:56,355 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 0 proven. 34 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-11-29 07:02:56,355 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 07:02:56,835 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 07:02:56,835 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [454128185] [2023-11-29 07:02:56,835 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 07:02:56,835 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1989968522] [2023-11-29 07:02:56,835 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1989968522] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 07:02:56,835 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 07:02:56,835 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2023-11-29 07:02:56,836 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1125682224] [2023-11-29 07:02:56,836 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 07:02:56,836 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-11-29 07:02:56,836 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 07:02:56,837 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-11-29 07:02:56,837 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=222, Unknown=0, NotChecked=0, Total=272 [2023-11-29 07:02:56,837 INFO L87 Difference]: Start difference. First operand 1349 states and 1705 transitions. Second operand has 13 states, 12 states have (on average 6.5) internal successors, (78), 13 states have internal predecessors, (78), 4 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 4 states have call successors, (4) [2023-11-29 07:02:57,850 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 07:02:57,850 INFO L93 Difference]: Finished difference Result 1394 states and 1741 transitions. [2023-11-29 07:02:57,850 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-11-29 07:02:57,850 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 6.5) internal successors, (78), 13 states have internal predecessors, (78), 4 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 4 states have call successors, (4) Word has length 89 [2023-11-29 07:02:57,851 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 07:02:57,857 INFO L225 Difference]: With dead ends: 1394 [2023-11-29 07:02:57,857 INFO L226 Difference]: Without dead ends: 1392 [2023-11-29 07:02:57,858 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 108 GetRequests, 86 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=109, Invalid=443, Unknown=0, NotChecked=0, Total=552 [2023-11-29 07:02:57,858 INFO L413 NwaCegarLoop]: 90 mSDtfsCounter, 212 mSDsluCounter, 648 mSDsCounter, 0 mSdLazyCounter, 1428 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 213 SdHoareTripleChecker+Valid, 738 SdHoareTripleChecker+Invalid, 1431 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1428 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-11-29 07:02:57,858 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [213 Valid, 738 Invalid, 1431 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1428 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-11-29 07:02:57,860 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1392 states. [2023-11-29 07:02:57,970 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1392 to 1349. [2023-11-29 07:02:57,972 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1349 states, 1285 states have (on average 1.270817120622568) internal successors, (1633), 1311 states have internal predecessors, (1633), 35 states have call successors, (35), 2 states have call predecessors, (35), 2 states have return successors, (35), 35 states have call predecessors, (35), 35 states have call successors, (35) [2023-11-29 07:02:57,975 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1349 states to 1349 states and 1703 transitions. [2023-11-29 07:02:57,975 INFO L78 Accepts]: Start accepts. Automaton has 1349 states and 1703 transitions. Word has length 89 [2023-11-29 07:02:57,975 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 07:02:57,975 INFO L495 AbstractCegarLoop]: Abstraction has 1349 states and 1703 transitions. [2023-11-29 07:02:57,975 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 6.5) internal successors, (78), 13 states have internal predecessors, (78), 4 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 4 states have call successors, (4) [2023-11-29 07:02:57,975 INFO L276 IsEmpty]: Start isEmpty. Operand 1349 states and 1703 transitions. [2023-11-29 07:02:57,976 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2023-11-29 07:02:57,976 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 07:02:57,976 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 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 07:02:57,980 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2c6dc8-a580-46e1-b422-81b2f1468bab/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (51)] Forceful destruction successful, exit code 0 [2023-11-29 07:02:58,177 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable54,51 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2c6dc8-a580-46e1-b422-81b2f1468bab/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 07:02:58,177 INFO L420 AbstractCegarLoop]: === Iteration 56 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2023-11-29 07:02:58,177 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 07:02:58,177 INFO L85 PathProgramCache]: Analyzing trace with hash 32804096, now seen corresponding path program 1 times [2023-11-29 07:02:58,177 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 07:02:58,177 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [885901589] [2023-11-29 07:02:58,177 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:02:58,178 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 07:02:58,185 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 07:02:58,185 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1024314866] [2023-11-29 07:02:58,185 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:02:58,185 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 07:02:58,185 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2c6dc8-a580-46e1-b422-81b2f1468bab/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 07:02:58,186 INFO L229 MonitoredProcess]: Starting monitored process 52 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2c6dc8-a580-46e1-b422-81b2f1468bab/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 07:02:58,188 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2c6dc8-a580-46e1-b422-81b2f1468bab/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (52)] Waiting until timeout for monitored process [2023-11-29 07:02:58,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:02:58,239 INFO L262 TraceCheckSpWp]: Trace formula consists of 164 conjuncts, 21 conjunts are in the unsatisfiable core [2023-11-29 07:02:58,241 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 07:02:58,750 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 3 proven. 39 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-11-29 07:02:58,751 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 07:03:00,986 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 3 proven. 39 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-11-29 07:03:00,987 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 07:03:00,987 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [885901589] [2023-11-29 07:03:00,987 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 07:03:00,987 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1024314866] [2023-11-29 07:03:00,987 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1024314866] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 07:03:00,987 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 07:03:00,987 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13] total 24 [2023-11-29 07:03:00,987 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [846186229] [2023-11-29 07:03:00,987 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 07:03:00,988 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2023-11-29 07:03:00,988 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 07:03:00,988 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2023-11-29 07:03:00,989 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=112, Invalid=488, Unknown=0, NotChecked=0, Total=600 [2023-11-29 07:03:00,989 INFO L87 Difference]: Start difference. First operand 1349 states and 1703 transitions. Second operand has 25 states, 24 states have (on average 6.458333333333333) internal successors, (155), 25 states have internal predecessors, (155), 5 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (7), 7 states have call predecessors, (7), 5 states have call successors, (7) [2023-11-29 07:03:14,158 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 07:03:14,159 INFO L93 Difference]: Finished difference Result 1643 states and 2022 transitions. [2023-11-29 07:03:14,159 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2023-11-29 07:03:14,159 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 24 states have (on average 6.458333333333333) internal successors, (155), 25 states have internal predecessors, (155), 5 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (7), 7 states have call predecessors, (7), 5 states have call successors, (7) Word has length 93 [2023-11-29 07:03:14,159 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 07:03:14,164 INFO L225 Difference]: With dead ends: 1643 [2023-11-29 07:03:14,164 INFO L226 Difference]: Without dead ends: 1639 [2023-11-29 07:03:14,165 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 213 GetRequests, 161 SyntacticMatches, 0 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 634 ImplicationChecksByTransitivity, 3.6s TimeCoverageRelationStatistics Valid=668, Invalid=2194, Unknown=0, NotChecked=0, Total=2862 [2023-11-29 07:03:14,165 INFO L413 NwaCegarLoop]: 58 mSDtfsCounter, 1278 mSDsluCounter, 666 mSDsCounter, 0 mSdLazyCounter, 2461 mSolverCounterSat, 53 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1278 SdHoareTripleChecker+Valid, 724 SdHoareTripleChecker+Invalid, 2514 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 2461 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.4s IncrementalHoareTripleChecker+Time [2023-11-29 07:03:14,165 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1278 Valid, 724 Invalid, 2514 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 2461 Invalid, 0 Unknown, 0 Unchecked, 11.4s Time] [2023-11-29 07:03:14,167 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1639 states. [2023-11-29 07:03:14,241 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1639 to 1410. [2023-11-29 07:03:14,241 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1410 states, 1344 states have (on average 1.2581845238095237) internal successors, (1691), 1370 states have internal predecessors, (1691), 37 states have call successors, (37), 2 states have call predecessors, (37), 2 states have return successors, (37), 37 states have call predecessors, (37), 37 states have call successors, (37) [2023-11-29 07:03:14,244 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1410 states to 1410 states and 1765 transitions. [2023-11-29 07:03:14,244 INFO L78 Accepts]: Start accepts. Automaton has 1410 states and 1765 transitions. Word has length 93 [2023-11-29 07:03:14,244 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 07:03:14,244 INFO L495 AbstractCegarLoop]: Abstraction has 1410 states and 1765 transitions. [2023-11-29 07:03:14,244 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 24 states have (on average 6.458333333333333) internal successors, (155), 25 states have internal predecessors, (155), 5 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (7), 7 states have call predecessors, (7), 5 states have call successors, (7) [2023-11-29 07:03:14,244 INFO L276 IsEmpty]: Start isEmpty. Operand 1410 states and 1765 transitions. [2023-11-29 07:03:14,245 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2023-11-29 07:03:14,245 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 07:03:14,245 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 07:03:14,249 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2c6dc8-a580-46e1-b422-81b2f1468bab/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (52)] Ended with exit code 0 [2023-11-29 07:03:14,446 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 52 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2c6dc8-a580-46e1-b422-81b2f1468bab/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable55 [2023-11-29 07:03:14,446 INFO L420 AbstractCegarLoop]: === Iteration 57 === Targeting ULTIMATE.startErr51ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2023-11-29 07:03:14,446 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 07:03:14,446 INFO L85 PathProgramCache]: Analyzing trace with hash 1298429678, now seen corresponding path program 1 times [2023-11-29 07:03:14,447 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 07:03:14,447 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [545725182] [2023-11-29 07:03:14,447 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:03:14,447 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 07:03:14,454 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 07:03:14,454 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [868289838] [2023-11-29 07:03:14,454 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:03:14,454 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 07:03:14,455 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2c6dc8-a580-46e1-b422-81b2f1468bab/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 07:03:14,455 INFO L229 MonitoredProcess]: Starting monitored process 53 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2c6dc8-a580-46e1-b422-81b2f1468bab/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 07:03:14,457 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2c6dc8-a580-46e1-b422-81b2f1468bab/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (53)] Waiting until timeout for monitored process [2023-11-29 07:03:14,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:03:14,510 INFO L262 TraceCheckSpWp]: Trace formula consists of 160 conjuncts, 37 conjunts are in the unsatisfiable core [2023-11-29 07:03:14,512 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 07:03:15,582 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 6 proven. 21 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-29 07:03:15,583 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 07:03:17,632 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 6 proven. 21 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-29 07:03:17,632 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 07:03:17,632 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [545725182] [2023-11-29 07:03:17,632 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 07:03:17,632 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [868289838] [2023-11-29 07:03:17,633 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [868289838] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 07:03:17,633 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 07:03:17,633 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 18] total 33 [2023-11-29 07:03:17,633 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1849004771] [2023-11-29 07:03:17,633 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 07:03:17,633 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2023-11-29 07:03:17,633 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 07:03:17,634 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2023-11-29 07:03:17,634 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=188, Invalid=934, Unknown=0, NotChecked=0, Total=1122 [2023-11-29 07:03:17,634 INFO L87 Difference]: Start difference. First operand 1410 states and 1765 transitions. Second operand has 34 states, 33 states have (on average 4.909090909090909) internal successors, (162), 32 states have internal predecessors, (162), 5 states have call successors, (6), 1 states have call predecessors, (6), 3 states have return successors, (7), 7 states have call predecessors, (7), 5 states have call successors, (7) [2023-11-29 07:03:20,070 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.06s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-29 07:03:31,911 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 07:03:31,912 INFO L93 Difference]: Finished difference Result 1489 states and 1842 transitions. [2023-11-29 07:03:31,912 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2023-11-29 07:03:31,912 INFO L78 Accepts]: Start accepts. Automaton has has 34 states, 33 states have (on average 4.909090909090909) internal successors, (162), 32 states have internal predecessors, (162), 5 states have call successors, (6), 1 states have call predecessors, (6), 3 states have return successors, (7), 7 states have call predecessors, (7), 5 states have call successors, (7) Word has length 94 [2023-11-29 07:03:31,913 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 07:03:31,917 INFO L225 Difference]: With dead ends: 1489 [2023-11-29 07:03:31,917 INFO L226 Difference]: Without dead ends: 1463 [2023-11-29 07:03:31,918 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 220 GetRequests, 154 SyntacticMatches, 0 SemanticMatches, 66 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1146 ImplicationChecksByTransitivity, 5.2s TimeCoverageRelationStatistics Valid=959, Invalid=3597, Unknown=0, NotChecked=0, Total=4556 [2023-11-29 07:03:31,918 INFO L413 NwaCegarLoop]: 24 mSDtfsCounter, 1052 mSDsluCounter, 368 mSDsCounter, 0 mSdLazyCounter, 2490 mSolverCounterSat, 62 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1053 SdHoareTripleChecker+Valid, 392 SdHoareTripleChecker+Invalid, 2552 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 2490 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.5s IncrementalHoareTripleChecker+Time [2023-11-29 07:03:31,918 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1053 Valid, 392 Invalid, 2552 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 2490 Invalid, 0 Unknown, 0 Unchecked, 10.5s Time] [2023-11-29 07:03:31,920 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1463 states. [2023-11-29 07:03:32,053 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1463 to 1416. [2023-11-29 07:03:32,054 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1416 states, 1350 states have (on average 1.2562962962962962) internal successors, (1696), 1376 states have internal predecessors, (1696), 37 states have call successors, (37), 2 states have call predecessors, (37), 2 states have return successors, (37), 37 states have call predecessors, (37), 37 states have call successors, (37) [2023-11-29 07:03:32,056 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1416 states to 1416 states and 1770 transitions. [2023-11-29 07:03:32,056 INFO L78 Accepts]: Start accepts. Automaton has 1416 states and 1770 transitions. Word has length 94 [2023-11-29 07:03:32,056 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 07:03:32,056 INFO L495 AbstractCegarLoop]: Abstraction has 1416 states and 1770 transitions. [2023-11-29 07:03:32,057 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 33 states have (on average 4.909090909090909) internal successors, (162), 32 states have internal predecessors, (162), 5 states have call successors, (6), 1 states have call predecessors, (6), 3 states have return successors, (7), 7 states have call predecessors, (7), 5 states have call successors, (7) [2023-11-29 07:03:32,057 INFO L276 IsEmpty]: Start isEmpty. Operand 1416 states and 1770 transitions. [2023-11-29 07:03:32,057 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2023-11-29 07:03:32,057 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 07:03:32,058 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 07:03:32,064 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2c6dc8-a580-46e1-b422-81b2f1468bab/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (53)] Ended with exit code 0 [2023-11-29 07:03:32,258 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable56,53 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2c6dc8-a580-46e1-b422-81b2f1468bab/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 07:03:32,258 INFO L420 AbstractCegarLoop]: === Iteration 58 === Targeting ULTIMATE.startErr56ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2023-11-29 07:03:32,258 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 07:03:32,259 INFO L85 PathProgramCache]: Analyzing trace with hash -2115616630, now seen corresponding path program 1 times [2023-11-29 07:03:32,259 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 07:03:32,259 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [865857402] [2023-11-29 07:03:32,259 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:03:32,259 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 07:03:32,266 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 07:03:32,266 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1517514365] [2023-11-29 07:03:32,266 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:03:32,266 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 07:03:32,266 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2c6dc8-a580-46e1-b422-81b2f1468bab/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 07:03:32,267 INFO L229 MonitoredProcess]: Starting monitored process 54 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2c6dc8-a580-46e1-b422-81b2f1468bab/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 07:03:32,268 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2c6dc8-a580-46e1-b422-81b2f1468bab/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (54)] Waiting until timeout for monitored process [2023-11-29 07:03:32,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:03:32,332 INFO L262 TraceCheckSpWp]: Trace formula consists of 157 conjuncts, 9 conjunts are in the unsatisfiable core [2023-11-29 07:03:32,333 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 07:03:32,749 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2023-11-29 07:03:32,749 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 07:03:32,917 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2023-11-29 07:03:32,918 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 07:03:32,918 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [865857402] [2023-11-29 07:03:32,918 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 07:03:32,918 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1517514365] [2023-11-29 07:03:32,918 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1517514365] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 07:03:32,918 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 07:03:32,918 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 15 [2023-11-29 07:03:32,918 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1764581375] [2023-11-29 07:03:32,918 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 07:03:32,919 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-11-29 07:03:32,919 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 07:03:32,919 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-11-29 07:03:32,919 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=193, Unknown=0, NotChecked=0, Total=240 [2023-11-29 07:03:32,919 INFO L87 Difference]: Start difference. First operand 1416 states and 1770 transitions. Second operand has 16 states, 15 states have (on average 10.066666666666666) internal successors, (151), 16 states have internal predecessors, (151), 5 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 5 states have call predecessors, (6), 5 states have call successors, (6) [2023-11-29 07:03:33,946 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 07:03:33,947 INFO L93 Difference]: Finished difference Result 1458 states and 1810 transitions. [2023-11-29 07:03:33,947 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2023-11-29 07:03:33,947 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 10.066666666666666) internal successors, (151), 16 states have internal predecessors, (151), 5 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 5 states have call predecessors, (6), 5 states have call successors, (6) Word has length 95 [2023-11-29 07:03:33,947 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 07:03:33,950 INFO L225 Difference]: With dead ends: 1458 [2023-11-29 07:03:33,951 INFO L226 Difference]: Without dead ends: 1457 [2023-11-29 07:03:33,951 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 202 GetRequests, 174 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 175 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=182, Invalid=688, Unknown=0, NotChecked=0, Total=870 [2023-11-29 07:03:33,952 INFO L413 NwaCegarLoop]: 65 mSDtfsCounter, 199 mSDsluCounter, 506 mSDsCounter, 0 mSdLazyCounter, 1149 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 199 SdHoareTripleChecker+Valid, 571 SdHoareTripleChecker+Invalid, 1158 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 1149 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-11-29 07:03:33,952 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [199 Valid, 571 Invalid, 1158 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 1149 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-11-29 07:03:33,953 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1457 states. [2023-11-29 07:03:34,041 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1457 to 1431. [2023-11-29 07:03:34,042 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1431 states, 1365 states have (on average 1.2534798534798535) internal successors, (1711), 1391 states have internal predecessors, (1711), 37 states have call successors, (37), 2 states have call predecessors, (37), 2 states have return successors, (37), 37 states have call predecessors, (37), 37 states have call successors, (37) [2023-11-29 07:03:34,044 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1431 states to 1431 states and 1785 transitions. [2023-11-29 07:03:34,044 INFO L78 Accepts]: Start accepts. Automaton has 1431 states and 1785 transitions. Word has length 95 [2023-11-29 07:03:34,044 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 07:03:34,044 INFO L495 AbstractCegarLoop]: Abstraction has 1431 states and 1785 transitions. [2023-11-29 07:03:34,045 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 10.066666666666666) internal successors, (151), 16 states have internal predecessors, (151), 5 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 5 states have call predecessors, (6), 5 states have call successors, (6) [2023-11-29 07:03:34,045 INFO L276 IsEmpty]: Start isEmpty. Operand 1431 states and 1785 transitions. [2023-11-29 07:03:34,045 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2023-11-29 07:03:34,045 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 07:03:34,045 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 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 07:03:34,049 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2c6dc8-a580-46e1-b422-81b2f1468bab/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (54)] Ended with exit code 0 [2023-11-29 07:03:34,245 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable57,54 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2c6dc8-a580-46e1-b422-81b2f1468bab/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 07:03:34,246 INFO L420 AbstractCegarLoop]: === Iteration 59 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2023-11-29 07:03:34,246 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 07:03:34,246 INFO L85 PathProgramCache]: Analyzing trace with hash 2078295400, now seen corresponding path program 1 times [2023-11-29 07:03:34,246 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 07:03:34,246 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1408079716] [2023-11-29 07:03:34,246 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:03:34,246 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 07:03:34,253 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 07:03:34,253 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1334160420] [2023-11-29 07:03:34,253 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:03:34,253 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 07:03:34,253 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2c6dc8-a580-46e1-b422-81b2f1468bab/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 07:03:34,254 INFO L229 MonitoredProcess]: Starting monitored process 55 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2c6dc8-a580-46e1-b422-81b2f1468bab/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 07:03:34,255 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2c6dc8-a580-46e1-b422-81b2f1468bab/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (55)] Waiting until timeout for monitored process [2023-11-29 07:03:34,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:03:34,305 INFO L262 TraceCheckSpWp]: Trace formula consists of 167 conjuncts, 11 conjunts are in the unsatisfiable core [2023-11-29 07:03:34,306 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 07:03:34,823 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 25 proven. 20 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2023-11-29 07:03:34,824 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 07:03:35,236 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 07:03:35,236 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1408079716] [2023-11-29 07:03:35,236 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 07:03:35,236 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1334160420] [2023-11-29 07:03:35,236 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1334160420] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 07:03:35,236 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 07:03:35,236 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2023-11-29 07:03:35,236 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [785026603] [2023-11-29 07:03:35,237 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 07:03:35,237 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-29 07:03:35,237 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 07:03:35,237 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-29 07:03:35,237 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=251, Unknown=0, NotChecked=0, Total=306 [2023-11-29 07:03:35,238 INFO L87 Difference]: Start difference. First operand 1431 states and 1785 transitions. Second operand has 12 states, 11 states have (on average 7.454545454545454) internal successors, (82), 12 states have internal predecessors, (82), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2023-11-29 07:03:38,711 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 07:03:38,711 INFO L93 Difference]: Finished difference Result 1517 states and 1832 transitions. [2023-11-29 07:03:38,711 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2023-11-29 07:03:38,711 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 7.454545454545454) internal successors, (82), 12 states have internal predecessors, (82), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) Word has length 96 [2023-11-29 07:03:38,712 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 07:03:38,714 INFO L225 Difference]: With dead ends: 1517 [2023-11-29 07:03:38,714 INFO L226 Difference]: Without dead ends: 1515 [2023-11-29 07:03:38,714 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 133 GetRequests, 103 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 154 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=238, Invalid=754, Unknown=0, NotChecked=0, Total=992 [2023-11-29 07:03:38,715 INFO L413 NwaCegarLoop]: 121 mSDtfsCounter, 358 mSDsluCounter, 569 mSDsCounter, 0 mSdLazyCounter, 1195 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 358 SdHoareTripleChecker+Valid, 690 SdHoareTripleChecker+Invalid, 1212 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 1195 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2023-11-29 07:03:38,715 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [358 Valid, 690 Invalid, 1212 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 1195 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2023-11-29 07:03:38,716 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1515 states. [2023-11-29 07:03:38,801 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1515 to 1429. [2023-11-29 07:03:38,802 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1429 states, 1365 states have (on average 1.2388278388278389) internal successors, (1691), 1389 states have internal predecessors, (1691), 37 states have call successors, (37), 2 states have call predecessors, (37), 2 states have return successors, (37), 37 states have call predecessors, (37), 37 states have call successors, (37) [2023-11-29 07:03:38,803 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1429 states to 1429 states and 1765 transitions. [2023-11-29 07:03:38,804 INFO L78 Accepts]: Start accepts. Automaton has 1429 states and 1765 transitions. Word has length 96 [2023-11-29 07:03:38,804 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 07:03:38,804 INFO L495 AbstractCegarLoop]: Abstraction has 1429 states and 1765 transitions. [2023-11-29 07:03:38,804 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 7.454545454545454) internal successors, (82), 12 states have internal predecessors, (82), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2023-11-29 07:03:38,804 INFO L276 IsEmpty]: Start isEmpty. Operand 1429 states and 1765 transitions. [2023-11-29 07:03:38,805 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2023-11-29 07:03:38,805 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 07:03:38,805 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 07:03:38,810 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2c6dc8-a580-46e1-b422-81b2f1468bab/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (55)] Ended with exit code 0 [2023-11-29 07:03:39,005 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable58,55 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2c6dc8-a580-46e1-b422-81b2f1468bab/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 07:03:39,006 INFO L420 AbstractCegarLoop]: === Iteration 60 === Targeting ULTIMATE.startErr57ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2023-11-29 07:03:39,006 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 07:03:39,006 INFO L85 PathProgramCache]: Analyzing trace with hash -1159605914, now seen corresponding path program 1 times [2023-11-29 07:03:39,006 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 07:03:39,006 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [772154813] [2023-11-29 07:03:39,006 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:03:39,006 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 07:03:39,011 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 07:03:39,012 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2012071442] [2023-11-29 07:03:39,012 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:03:39,012 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 07:03:39,012 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2c6dc8-a580-46e1-b422-81b2f1468bab/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 07:03:39,013 INFO L229 MonitoredProcess]: Starting monitored process 56 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2c6dc8-a580-46e1-b422-81b2f1468bab/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 07:03:39,013 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2c6dc8-a580-46e1-b422-81b2f1468bab/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (56)] Waiting until timeout for monitored process [2023-11-29 07:03:39,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:03:39,060 INFO L262 TraceCheckSpWp]: Trace formula consists of 158 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-29 07:03:39,061 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 07:03:39,136 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2023-11-29 07:03:39,136 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 07:03:39,136 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 07:03:39,136 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [772154813] [2023-11-29 07:03:39,136 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 07:03:39,137 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2012071442] [2023-11-29 07:03:39,137 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2012071442] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 07:03:39,137 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 07:03:39,137 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 07:03:39,137 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [201189701] [2023-11-29 07:03:39,137 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 07:03:39,137 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 07:03:39,137 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 07:03:39,138 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 07:03:39,138 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-29 07:03:39,138 INFO L87 Difference]: Start difference. First operand 1429 states and 1765 transitions. Second operand has 4 states, 3 states have (on average 21.0) internal successors, (63), 4 states have internal predecessors, (63), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-11-29 07:03:39,327 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 07:03:39,327 INFO L93 Difference]: Finished difference Result 1444 states and 1770 transitions. [2023-11-29 07:03:39,327 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 07:03:39,328 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 21.0) internal successors, (63), 4 states have internal predecessors, (63), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 96 [2023-11-29 07:03:39,328 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 07:03:39,330 INFO L225 Difference]: With dead ends: 1444 [2023-11-29 07:03:39,330 INFO L226 Difference]: Without dead ends: 1421 [2023-11-29 07:03:39,330 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 95 GetRequests, 93 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 07:03:39,331 INFO L413 NwaCegarLoop]: 84 mSDtfsCounter, 36 mSDsluCounter, 92 mSDsCounter, 0 mSdLazyCounter, 82 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 37 SdHoareTripleChecker+Valid, 176 SdHoareTripleChecker+Invalid, 83 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 82 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 07:03:39,331 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [37 Valid, 176 Invalid, 83 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 82 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 07:03:39,332 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1421 states. [2023-11-29 07:03:39,419 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1421 to 1411. [2023-11-29 07:03:39,419 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1411 states, 1347 states have (on average 1.2405345211581291) internal successors, (1671), 1371 states have internal predecessors, (1671), 37 states have call successors, (37), 2 states have call predecessors, (37), 2 states have return successors, (37), 37 states have call predecessors, (37), 37 states have call successors, (37) [2023-11-29 07:03:39,421 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1411 states to 1411 states and 1745 transitions. [2023-11-29 07:03:39,421 INFO L78 Accepts]: Start accepts. Automaton has 1411 states and 1745 transitions. Word has length 96 [2023-11-29 07:03:39,421 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 07:03:39,421 INFO L495 AbstractCegarLoop]: Abstraction has 1411 states and 1745 transitions. [2023-11-29 07:03:39,421 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 21.0) internal successors, (63), 4 states have internal predecessors, (63), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-11-29 07:03:39,422 INFO L276 IsEmpty]: Start isEmpty. Operand 1411 states and 1745 transitions. [2023-11-29 07:03:39,422 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2023-11-29 07:03:39,422 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 07:03:39,422 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 07:03:39,427 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2c6dc8-a580-46e1-b422-81b2f1468bab/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (56)] Forceful destruction successful, exit code 0 [2023-11-29 07:03:39,623 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable59,56 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2c6dc8-a580-46e1-b422-81b2f1468bab/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 07:03:39,623 INFO L420 AbstractCegarLoop]: === Iteration 61 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2023-11-29 07:03:39,623 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 07:03:39,623 INFO L85 PathProgramCache]: Analyzing trace with hash 82089066, now seen corresponding path program 1 times [2023-11-29 07:03:39,624 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 07:03:39,624 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [946100683] [2023-11-29 07:03:39,624 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:03:39,624 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 07:03:39,631 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 07:03:39,631 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1245813679] [2023-11-29 07:03:39,631 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:03:39,631 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 07:03:39,631 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2c6dc8-a580-46e1-b422-81b2f1468bab/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 07:03:39,632 INFO L229 MonitoredProcess]: Starting monitored process 57 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2c6dc8-a580-46e1-b422-81b2f1468bab/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 07:03:39,633 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2c6dc8-a580-46e1-b422-81b2f1468bab/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (57)] Waiting until timeout for monitored process [2023-11-29 07:03:39,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:03:39,691 INFO L262 TraceCheckSpWp]: Trace formula consists of 169 conjuncts, 18 conjunts are in the unsatisfiable core [2023-11-29 07:03:39,693 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 07:03:40,975 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 22 proven. 27 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2023-11-29 07:03:40,975 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 07:03:48,381 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 07:03:48,381 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [946100683] [2023-11-29 07:03:48,381 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 07:03:48,381 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1245813679] [2023-11-29 07:03:48,381 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1245813679] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 07:03:48,381 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 07:03:48,381 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14] total 14 [2023-11-29 07:03:48,382 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [259781174] [2023-11-29 07:03:48,382 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 07:03:48,382 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2023-11-29 07:03:48,382 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 07:03:48,382 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2023-11-29 07:03:48,383 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=81, Invalid=424, Unknown=1, NotChecked=0, Total=506 [2023-11-29 07:03:48,383 INFO L87 Difference]: Start difference. First operand 1411 states and 1745 transitions. Second operand has 15 states, 14 states have (on average 6.0) internal successors, (84), 15 states have internal predecessors, (84), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2023-11-29 07:03:51,800 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 07:03:51,800 INFO L93 Difference]: Finished difference Result 1456 states and 1758 transitions. [2023-11-29 07:03:51,801 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2023-11-29 07:03:51,801 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 6.0) internal successors, (84), 15 states have internal predecessors, (84), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) Word has length 98 [2023-11-29 07:03:51,801 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 07:03:51,803 INFO L225 Difference]: With dead ends: 1456 [2023-11-29 07:03:51,803 INFO L226 Difference]: Without dead ends: 1455 [2023-11-29 07:03:51,803 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 133 GetRequests, 102 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 213 ImplicationChecksByTransitivity, 9.7s TimeCoverageRelationStatistics Valid=194, Invalid=861, Unknown=1, NotChecked=0, Total=1056 [2023-11-29 07:03:51,804 INFO L413 NwaCegarLoop]: 81 mSDtfsCounter, 452 mSDsluCounter, 401 mSDsCounter, 0 mSdLazyCounter, 1640 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 453 SdHoareTripleChecker+Valid, 482 SdHoareTripleChecker+Invalid, 1651 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 1640 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2023-11-29 07:03:51,804 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [453 Valid, 482 Invalid, 1651 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 1640 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2023-11-29 07:03:51,805 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1455 states. [2023-11-29 07:03:51,913 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1455 to 1411. [2023-11-29 07:03:51,914 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1411 states, 1347 states have (on average 1.2360801781737194) internal successors, (1665), 1371 states have internal predecessors, (1665), 37 states have call successors, (37), 2 states have call predecessors, (37), 2 states have return successors, (37), 37 states have call predecessors, (37), 37 states have call successors, (37) [2023-11-29 07:03:51,916 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1411 states to 1411 states and 1739 transitions. [2023-11-29 07:03:51,916 INFO L78 Accepts]: Start accepts. Automaton has 1411 states and 1739 transitions. Word has length 98 [2023-11-29 07:03:51,916 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 07:03:51,916 INFO L495 AbstractCegarLoop]: Abstraction has 1411 states and 1739 transitions. [2023-11-29 07:03:51,916 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 6.0) internal successors, (84), 15 states have internal predecessors, (84), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2023-11-29 07:03:51,917 INFO L276 IsEmpty]: Start isEmpty. Operand 1411 states and 1739 transitions. [2023-11-29 07:03:51,917 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2023-11-29 07:03:51,917 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 07:03:51,918 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 07:03:51,922 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2c6dc8-a580-46e1-b422-81b2f1468bab/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (57)] Ended with exit code 0 [2023-11-29 07:03:52,118 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable60,57 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2c6dc8-a580-46e1-b422-81b2f1468bab/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 07:03:52,118 INFO L420 AbstractCegarLoop]: === Iteration 62 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2023-11-29 07:03:52,118 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 07:03:52,118 INFO L85 PathProgramCache]: Analyzing trace with hash 1064445514, now seen corresponding path program 1 times [2023-11-29 07:03:52,119 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 07:03:52,119 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [437974268] [2023-11-29 07:03:52,119 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:03:52,119 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 07:03:52,124 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 07:03:52,125 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1022093488] [2023-11-29 07:03:52,125 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:03:52,125 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 07:03:52,125 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2c6dc8-a580-46e1-b422-81b2f1468bab/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 07:03:52,126 INFO L229 MonitoredProcess]: Starting monitored process 58 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2c6dc8-a580-46e1-b422-81b2f1468bab/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 07:03:52,126 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2c6dc8-a580-46e1-b422-81b2f1468bab/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (58)] Waiting until timeout for monitored process [2023-11-29 07:03:52,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:03:52,177 INFO L262 TraceCheckSpWp]: Trace formula consists of 174 conjuncts, 16 conjunts are in the unsatisfiable core [2023-11-29 07:03:52,179 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 07:03:55,447 INFO L134 CoverageAnalysis]: Checked inductivity of 67 backedges. 24 proven. 38 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-11-29 07:03:55,448 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 07:03:57,086 INFO L134 CoverageAnalysis]: Checked inductivity of 67 backedges. 6 proven. 56 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-11-29 07:03:57,086 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 07:03:57,086 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [437974268] [2023-11-29 07:03:57,086 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 07:03:57,086 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1022093488] [2023-11-29 07:03:57,086 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1022093488] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 07:03:57,086 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 07:03:57,086 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14] total 25 [2023-11-29 07:03:57,087 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1229070994] [2023-11-29 07:03:57,087 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 07:03:57,087 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2023-11-29 07:03:57,087 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 07:03:57,088 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2023-11-29 07:03:57,088 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=89, Invalid=561, Unknown=0, NotChecked=0, Total=650 [2023-11-29 07:03:57,088 INFO L87 Difference]: Start difference. First operand 1411 states and 1739 transitions. Second operand has 26 states, 25 states have (on average 6.8) internal successors, (170), 24 states have internal predecessors, (170), 5 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (6), 5 states have call predecessors, (6), 5 states have call successors, (6) [2023-11-29 07:04:02,314 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [1] [2023-11-29 07:04:24,659 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.58s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 07:04:48,623 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.99s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 07:04:53,828 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 07:04:53,828 INFO L93 Difference]: Finished difference Result 1557 states and 1900 transitions. [2023-11-29 07:04:53,829 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 68 states. [2023-11-29 07:04:53,829 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 25 states have (on average 6.8) internal successors, (170), 24 states have internal predecessors, (170), 5 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (6), 5 states have call predecessors, (6), 5 states have call successors, (6) Word has length 103 [2023-11-29 07:04:53,829 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 07:04:53,831 INFO L225 Difference]: With dead ends: 1557 [2023-11-29 07:04:53,831 INFO L226 Difference]: Without dead ends: 1556 [2023-11-29 07:04:53,832 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 267 GetRequests, 179 SyntacticMatches, 1 SemanticMatches, 87 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2074 ImplicationChecksByTransitivity, 31.6s TimeCoverageRelationStatistics Valid=1622, Invalid=6208, Unknown=2, NotChecked=0, Total=7832 [2023-11-29 07:04:53,832 INFO L413 NwaCegarLoop]: 36 mSDtfsCounter, 780 mSDsluCounter, 380 mSDsCounter, 0 mSdLazyCounter, 2272 mSolverCounterSat, 37 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 26.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 780 SdHoareTripleChecker+Valid, 416 SdHoareTripleChecker+Invalid, 2310 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 2272 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 26.7s IncrementalHoareTripleChecker+Time [2023-11-29 07:04:53,832 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [780 Valid, 416 Invalid, 2310 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 2272 Invalid, 1 Unknown, 0 Unchecked, 26.7s Time] [2023-11-29 07:04:53,834 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1556 states. [2023-11-29 07:04:53,943 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1556 to 1411. [2023-11-29 07:04:53,944 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1411 states, 1347 states have (on average 1.2301410541945064) internal successors, (1657), 1371 states have internal predecessors, (1657), 37 states have call successors, (37), 2 states have call predecessors, (37), 2 states have return successors, (37), 37 states have call predecessors, (37), 37 states have call successors, (37) [2023-11-29 07:04:53,946 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1411 states to 1411 states and 1731 transitions. [2023-11-29 07:04:53,946 INFO L78 Accepts]: Start accepts. Automaton has 1411 states and 1731 transitions. Word has length 103 [2023-11-29 07:04:53,946 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 07:04:53,946 INFO L495 AbstractCegarLoop]: Abstraction has 1411 states and 1731 transitions. [2023-11-29 07:04:53,946 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 25 states have (on average 6.8) internal successors, (170), 24 states have internal predecessors, (170), 5 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (6), 5 states have call predecessors, (6), 5 states have call successors, (6) [2023-11-29 07:04:53,946 INFO L276 IsEmpty]: Start isEmpty. Operand 1411 states and 1731 transitions. [2023-11-29 07:04:53,947 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2023-11-29 07:04:53,947 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 07:04:53,947 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 07:04:53,952 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2c6dc8-a580-46e1-b422-81b2f1468bab/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (58)] Ended with exit code 0 [2023-11-29 07:04:54,147 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable61,58 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2c6dc8-a580-46e1-b422-81b2f1468bab/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 07:04:54,148 INFO L420 AbstractCegarLoop]: === Iteration 63 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2023-11-29 07:04:54,148 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 07:04:54,148 INFO L85 PathProgramCache]: Analyzing trace with hash 1369125232, now seen corresponding path program 1 times [2023-11-29 07:04:54,148 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 07:04:54,148 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1523874792] [2023-11-29 07:04:54,148 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:04:54,148 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 07:04:54,154 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 07:04:54,154 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [780052681] [2023-11-29 07:04:54,154 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:04:54,154 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 07:04:54,154 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2c6dc8-a580-46e1-b422-81b2f1468bab/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 07:04:54,155 INFO L229 MonitoredProcess]: Starting monitored process 59 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2c6dc8-a580-46e1-b422-81b2f1468bab/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 07:04:54,156 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2c6dc8-a580-46e1-b422-81b2f1468bab/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (59)] Waiting until timeout for monitored process [2023-11-29 07:04:54,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:04:54,210 INFO L262 TraceCheckSpWp]: Trace formula consists of 175 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-29 07:04:54,211 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 07:04:54,465 INFO L134 CoverageAnalysis]: Checked inductivity of 69 backedges. 0 proven. 61 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2023-11-29 07:04:54,465 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 07:04:54,669 INFO L134 CoverageAnalysis]: Checked inductivity of 69 backedges. 0 proven. 61 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2023-11-29 07:04:54,669 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 07:04:54,669 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1523874792] [2023-11-29 07:04:54,669 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 07:04:54,670 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [780052681] [2023-11-29 07:04:54,670 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [780052681] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 07:04:54,670 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 07:04:54,670 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 11 [2023-11-29 07:04:54,670 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1240633247] [2023-11-29 07:04:54,670 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 07:04:54,671 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-29 07:04:54,671 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 07:04:54,671 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-29 07:04:54,671 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=96, Unknown=0, NotChecked=0, Total=132 [2023-11-29 07:04:54,671 INFO L87 Difference]: Start difference. First operand 1411 states and 1731 transitions. Second operand has 12 states, 11 states have (on average 15.363636363636363) internal successors, (169), 12 states have internal predecessors, (169), 5 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 5 states have call predecessors, (6), 5 states have call successors, (6) [2023-11-29 07:04:55,790 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 07:04:55,790 INFO L93 Difference]: Finished difference Result 2281 states and 2749 transitions. [2023-11-29 07:04:55,791 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2023-11-29 07:04:55,791 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), 5 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 5 states have call predecessors, (6), 5 states have call successors, (6) Word has length 104 [2023-11-29 07:04:55,791 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 07:04:55,794 INFO L225 Difference]: With dead ends: 2281 [2023-11-29 07:04:55,794 INFO L226 Difference]: Without dead ends: 1920 [2023-11-29 07:04:55,795 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 221 GetRequests, 196 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 150 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=173, Invalid=529, Unknown=0, NotChecked=0, Total=702 [2023-11-29 07:04:55,795 INFO L413 NwaCegarLoop]: 106 mSDtfsCounter, 572 mSDsluCounter, 407 mSDsCounter, 0 mSdLazyCounter, 900 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 573 SdHoareTripleChecker+Valid, 513 SdHoareTripleChecker+Invalid, 925 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 900 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-11-29 07:04:55,796 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [573 Valid, 513 Invalid, 925 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 900 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-11-29 07:04:55,798 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1920 states. [2023-11-29 07:04:55,933 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1920 to 1560. [2023-11-29 07:04:55,934 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1560 states, 1490 states have (on average 1.238255033557047) internal successors, (1845), 1514 states have internal predecessors, (1845), 43 states have call successors, (43), 2 states have call predecessors, (43), 2 states have return successors, (43), 43 states have call predecessors, (43), 43 states have call successors, (43) [2023-11-29 07:04:55,936 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1560 states to 1560 states and 1931 transitions. [2023-11-29 07:04:55,936 INFO L78 Accepts]: Start accepts. Automaton has 1560 states and 1931 transitions. Word has length 104 [2023-11-29 07:04:55,936 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 07:04:55,936 INFO L495 AbstractCegarLoop]: Abstraction has 1560 states and 1931 transitions. [2023-11-29 07:04:55,936 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), 5 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 5 states have call predecessors, (6), 5 states have call successors, (6) [2023-11-29 07:04:55,936 INFO L276 IsEmpty]: Start isEmpty. Operand 1560 states and 1931 transitions. [2023-11-29 07:04:55,937 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2023-11-29 07:04:55,937 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 07:04:55,937 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 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 07:04:55,942 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2c6dc8-a580-46e1-b422-81b2f1468bab/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (59)] Forceful destruction successful, exit code 0 [2023-11-29 07:04:56,137 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable62,59 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2c6dc8-a580-46e1-b422-81b2f1468bab/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 07:04:56,137 INFO L420 AbstractCegarLoop]: === Iteration 64 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2023-11-29 07:04:56,138 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 07:04:56,138 INFO L85 PathProgramCache]: Analyzing trace with hash -506790680, now seen corresponding path program 1 times [2023-11-29 07:04:56,138 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 07:04:56,138 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1667483051] [2023-11-29 07:04:56,138 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:04:56,138 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 07:04:56,145 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 07:04:56,145 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [716849984] [2023-11-29 07:04:56,145 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:04:56,146 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 07:04:56,146 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2c6dc8-a580-46e1-b422-81b2f1468bab/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 07:04:56,146 INFO L229 MonitoredProcess]: Starting monitored process 60 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2c6dc8-a580-46e1-b422-81b2f1468bab/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 07:04:56,147 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2c6dc8-a580-46e1-b422-81b2f1468bab/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (60)] Waiting until timeout for monitored process [2023-11-29 07:04:56,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:04:56,199 INFO L262 TraceCheckSpWp]: Trace formula consists of 176 conjuncts, 21 conjunts are in the unsatisfiable core [2023-11-29 07:04:56,201 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 07:04:56,874 INFO L134 CoverageAnalysis]: Checked inductivity of 71 backedges. 0 proven. 63 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2023-11-29 07:04:56,874 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 07:04:57,367 INFO L134 CoverageAnalysis]: Checked inductivity of 71 backedges. 5 proven. 58 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2023-11-29 07:04:57,367 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 07:04:57,367 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1667483051] [2023-11-29 07:04:57,367 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 07:04:57,367 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [716849984] [2023-11-29 07:04:57,367 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [716849984] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 07:04:57,368 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 07:04:57,368 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 9] total 19 [2023-11-29 07:04:57,368 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [740924871] [2023-11-29 07:04:57,368 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 07:04:57,368 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2023-11-29 07:04:57,368 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 07:04:57,369 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2023-11-29 07:04:57,369 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=305, Unknown=0, NotChecked=0, Total=380 [2023-11-29 07:04:57,369 INFO L87 Difference]: Start difference. First operand 1560 states and 1931 transitions. Second operand has 20 states, 19 states have (on average 9.0) internal successors, (171), 20 states have internal predecessors, (171), 5 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 5 states have call predecessors, (6), 5 states have call successors, (6) [2023-11-29 07:05:00,593 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 07:05:00,593 INFO L93 Difference]: Finished difference Result 2397 states and 2947 transitions. [2023-11-29 07:05:00,593 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2023-11-29 07:05:00,594 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 19 states have (on average 9.0) internal successors, (171), 20 states have internal predecessors, (171), 5 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 5 states have call predecessors, (6), 5 states have call successors, (6) Word has length 105 [2023-11-29 07:05:00,594 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 07:05:00,598 INFO L225 Difference]: With dead ends: 2397 [2023-11-29 07:05:00,598 INFO L226 Difference]: Without dead ends: 2396 [2023-11-29 07:05:00,599 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 236 GetRequests, 190 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 535 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=441, Invalid=1815, Unknown=0, NotChecked=0, Total=2256 [2023-11-29 07:05:00,599 INFO L413 NwaCegarLoop]: 67 mSDtfsCounter, 632 mSDsluCounter, 554 mSDsCounter, 0 mSdLazyCounter, 1954 mSolverCounterSat, 44 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 633 SdHoareTripleChecker+Valid, 621 SdHoareTripleChecker+Invalid, 1998 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 1954 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2023-11-29 07:05:00,599 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [633 Valid, 621 Invalid, 1998 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 1954 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2023-11-29 07:05:00,601 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2396 states. [2023-11-29 07:05:00,805 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2396 to 2033. [2023-11-29 07:05:00,806 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2033 states, 1947 states have (on average 1.2542372881355932) internal successors, (2442), 1971 states have internal predecessors, (2442), 59 states have call successors, (59), 2 states have call predecessors, (59), 2 states have return successors, (59), 59 states have call predecessors, (59), 59 states have call successors, (59) [2023-11-29 07:05:00,809 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2033 states to 2033 states and 2560 transitions. [2023-11-29 07:05:00,809 INFO L78 Accepts]: Start accepts. Automaton has 2033 states and 2560 transitions. Word has length 105 [2023-11-29 07:05:00,809 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 07:05:00,809 INFO L495 AbstractCegarLoop]: Abstraction has 2033 states and 2560 transitions. [2023-11-29 07:05:00,809 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 19 states have (on average 9.0) internal successors, (171), 20 states have internal predecessors, (171), 5 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 5 states have call predecessors, (6), 5 states have call successors, (6) [2023-11-29 07:05:00,809 INFO L276 IsEmpty]: Start isEmpty. Operand 2033 states and 2560 transitions. [2023-11-29 07:05:00,810 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2023-11-29 07:05:00,810 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 07:05:00,810 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 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 07:05:00,815 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2c6dc8-a580-46e1-b422-81b2f1468bab/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (60)] Ended with exit code 0 [2023-11-29 07:05:01,010 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable63,60 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2c6dc8-a580-46e1-b422-81b2f1468bab/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 07:05:01,011 INFO L420 AbstractCegarLoop]: === Iteration 65 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2023-11-29 07:05:01,011 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 07:05:01,011 INFO L85 PathProgramCache]: Analyzing trace with hash 729925260, now seen corresponding path program 2 times [2023-11-29 07:05:01,011 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 07:05:01,011 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [999804575] [2023-11-29 07:05:01,011 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:05:01,011 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 07:05:01,017 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 07:05:01,017 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1252837924] [2023-11-29 07:05:01,018 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-29 07:05:01,018 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 07:05:01,018 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2c6dc8-a580-46e1-b422-81b2f1468bab/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 07:05:01,019 INFO L229 MonitoredProcess]: Starting monitored process 61 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2c6dc8-a580-46e1-b422-81b2f1468bab/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 07:05:01,020 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2c6dc8-a580-46e1-b422-81b2f1468bab/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (61)] Waiting until timeout for monitored process [2023-11-29 07:05:01,076 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-29 07:05:01,076 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 07:05:01,077 INFO L262 TraceCheckSpWp]: Trace formula consists of 176 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-29 07:05:01,079 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 07:05:01,347 INFO L134 CoverageAnalysis]: Checked inductivity of 71 backedges. 0 proven. 63 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2023-11-29 07:05:01,347 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 07:05:01,545 INFO L134 CoverageAnalysis]: Checked inductivity of 71 backedges. 0 proven. 63 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2023-11-29 07:05:01,546 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 07:05:01,546 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [999804575] [2023-11-29 07:05:01,546 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 07:05:01,546 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1252837924] [2023-11-29 07:05:01,546 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1252837924] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 07:05:01,546 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 07:05:01,546 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 11 [2023-11-29 07:05:01,546 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1324431400] [2023-11-29 07:05:01,546 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 07:05:01,547 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-29 07:05:01,547 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 07:05:01,547 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-29 07:05:01,547 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=96, Unknown=0, NotChecked=0, Total=132 [2023-11-29 07:05:01,547 INFO L87 Difference]: Start difference. First operand 2033 states and 2560 transitions. Second operand has 12 states, 11 states have (on average 15.545454545454545) internal successors, (171), 12 states have internal predecessors, (171), 5 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 5 states have call predecessors, (6), 5 states have call successors, (6) [2023-11-29 07:05:02,911 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 07:05:02,911 INFO L93 Difference]: Finished difference Result 2610 states and 3183 transitions. [2023-11-29 07:05:02,911 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2023-11-29 07:05:02,911 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 15.545454545454545) internal successors, (171), 12 states have internal predecessors, (171), 5 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 5 states have call predecessors, (6), 5 states have call successors, (6) Word has length 105 [2023-11-29 07:05:02,912 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 07:05:02,915 INFO L225 Difference]: With dead ends: 2610 [2023-11-29 07:05:02,915 INFO L226 Difference]: Without dead ends: 2121 [2023-11-29 07:05:02,917 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 223 GetRequests, 198 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 150 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=173, Invalid=529, Unknown=0, NotChecked=0, Total=702 [2023-11-29 07:05:02,917 INFO L413 NwaCegarLoop]: 103 mSDtfsCounter, 491 mSDsluCounter, 506 mSDsCounter, 0 mSdLazyCounter, 1087 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 492 SdHoareTripleChecker+Valid, 609 SdHoareTripleChecker+Invalid, 1114 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 1087 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2023-11-29 07:05:02,917 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [492 Valid, 609 Invalid, 1114 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 1087 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2023-11-29 07:05:02,919 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2121 states. [2023-11-29 07:05:03,112 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2121 to 1902. [2023-11-29 07:05:03,113 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1902 states, 1821 states have (on average 1.2520593080724876) internal successors, (2280), 1845 states have internal predecessors, (2280), 54 states have call successors, (54), 2 states have call predecessors, (54), 2 states have return successors, (54), 54 states have call predecessors, (54), 54 states have call successors, (54) [2023-11-29 07:05:03,115 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1902 states to 1902 states and 2388 transitions. [2023-11-29 07:05:03,115 INFO L78 Accepts]: Start accepts. Automaton has 1902 states and 2388 transitions. Word has length 105 [2023-11-29 07:05:03,115 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 07:05:03,115 INFO L495 AbstractCegarLoop]: Abstraction has 1902 states and 2388 transitions. [2023-11-29 07:05:03,115 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 15.545454545454545) internal successors, (171), 12 states have internal predecessors, (171), 5 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 5 states have call predecessors, (6), 5 states have call successors, (6) [2023-11-29 07:05:03,116 INFO L276 IsEmpty]: Start isEmpty. Operand 1902 states and 2388 transitions. [2023-11-29 07:05:03,116 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2023-11-29 07:05:03,116 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 07:05:03,116 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 07:05:03,120 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2c6dc8-a580-46e1-b422-81b2f1468bab/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (61)] Ended with exit code 0 [2023-11-29 07:05:03,317 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 61 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2c6dc8-a580-46e1-b422-81b2f1468bab/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable64 [2023-11-29 07:05:03,317 INFO L420 AbstractCegarLoop]: === Iteration 66 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2023-11-29 07:05:03,317 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 07:05:03,317 INFO L85 PathProgramCache]: Analyzing trace with hash -1257976168, now seen corresponding path program 2 times [2023-11-29 07:05:03,317 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 07:05:03,318 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1512341491] [2023-11-29 07:05:03,318 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:05:03,318 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 07:05:03,325 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 07:05:03,326 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1492120150] [2023-11-29 07:05:03,326 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-29 07:05:03,326 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 07:05:03,326 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2c6dc8-a580-46e1-b422-81b2f1468bab/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 07:05:03,327 INFO L229 MonitoredProcess]: Starting monitored process 62 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2c6dc8-a580-46e1-b422-81b2f1468bab/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 07:05:03,328 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2c6dc8-a580-46e1-b422-81b2f1468bab/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (62)] Waiting until timeout for monitored process [2023-11-29 07:05:03,382 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-29 07:05:03,382 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 07:05:03,383 INFO L262 TraceCheckSpWp]: Trace formula consists of 182 conjuncts, 23 conjunts are in the unsatisfiable core [2023-11-29 07:05:03,385 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 07:05:04,861 INFO L134 CoverageAnalysis]: Checked inductivity of 75 backedges. 3 proven. 67 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-11-29 07:05:04,861 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 07:05:07,178 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 07:05:07,178 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1512341491] [2023-11-29 07:05:07,178 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 07:05:07,178 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1492120150] [2023-11-29 07:05:07,179 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1492120150] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 07:05:07,179 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 07:05:07,179 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16] total 16 [2023-11-29 07:05:07,179 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2072380268] [2023-11-29 07:05:07,179 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 07:05:07,179 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2023-11-29 07:05:07,179 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 07:05:07,180 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2023-11-29 07:05:07,180 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=87, Invalid=563, Unknown=0, NotChecked=0, Total=650 [2023-11-29 07:05:07,180 INFO L87 Difference]: Start difference. First operand 1902 states and 2388 transitions. Second operand has 17 states, 16 states have (on average 6.0) internal successors, (96), 17 states have internal predecessors, (96), 3 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 3 states have call successors, (4) [2023-11-29 07:05:10,182 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 07:05:10,182 INFO L93 Difference]: Finished difference Result 1923 states and 2402 transitions. [2023-11-29 07:05:10,182 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2023-11-29 07:05:10,182 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 6.0) internal successors, (96), 17 states have internal predecessors, (96), 3 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 3 states have call successors, (4) Word has length 107 [2023-11-29 07:05:10,182 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 07:05:10,186 INFO L225 Difference]: With dead ends: 1923 [2023-11-29 07:05:10,186 INFO L226 Difference]: Without dead ends: 1922 [2023-11-29 07:05:10,186 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 145 GetRequests, 112 SyntacticMatches, 1 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 236 ImplicationChecksByTransitivity, 3.7s TimeCoverageRelationStatistics Valid=159, Invalid=963, Unknown=0, NotChecked=0, Total=1122 [2023-11-29 07:05:10,187 INFO L413 NwaCegarLoop]: 74 mSDtfsCounter, 272 mSDsluCounter, 642 mSDsCounter, 0 mSdLazyCounter, 2029 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 273 SdHoareTripleChecker+Valid, 716 SdHoareTripleChecker+Invalid, 2033 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 2029 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2023-11-29 07:05:10,187 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [273 Valid, 716 Invalid, 2033 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 2029 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2023-11-29 07:05:10,189 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1922 states. [2023-11-29 07:05:10,458 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1922 to 1902. [2023-11-29 07:05:10,460 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1902 states, 1821 states have (on average 1.2515101592531577) internal successors, (2279), 1845 states have internal predecessors, (2279), 54 states have call successors, (54), 2 states have call predecessors, (54), 2 states have return successors, (54), 54 states have call predecessors, (54), 54 states have call successors, (54) [2023-11-29 07:05:10,463 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1902 states to 1902 states and 2387 transitions. [2023-11-29 07:05:10,463 INFO L78 Accepts]: Start accepts. Automaton has 1902 states and 2387 transitions. Word has length 107 [2023-11-29 07:05:10,464 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 07:05:10,464 INFO L495 AbstractCegarLoop]: Abstraction has 1902 states and 2387 transitions. [2023-11-29 07:05:10,464 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 6.0) internal successors, (96), 17 states have internal predecessors, (96), 3 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 3 states have call successors, (4) [2023-11-29 07:05:10,464 INFO L276 IsEmpty]: Start isEmpty. Operand 1902 states and 2387 transitions. [2023-11-29 07:05:10,465 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2023-11-29 07:05:10,465 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 07:05:10,465 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 07:05:10,469 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2c6dc8-a580-46e1-b422-81b2f1468bab/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (62)] Ended with exit code 0 [2023-11-29 07:05:10,665 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 62 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2c6dc8-a580-46e1-b422-81b2f1468bab/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable65 [2023-11-29 07:05:10,665 INFO L420 AbstractCegarLoop]: === Iteration 67 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2023-11-29 07:05:10,666 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 07:05:10,666 INFO L85 PathProgramCache]: Analyzing trace with hash -2029284518, now seen corresponding path program 2 times [2023-11-29 07:05:10,666 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 07:05:10,666 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [750887759] [2023-11-29 07:05:10,666 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:05:10,666 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 07:05:10,674 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 07:05:10,674 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1547681521] [2023-11-29 07:05:10,674 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-29 07:05:10,674 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 07:05:10,675 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2c6dc8-a580-46e1-b422-81b2f1468bab/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 07:05:10,675 INFO L229 MonitoredProcess]: Starting monitored process 63 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2c6dc8-a580-46e1-b422-81b2f1468bab/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 07:05:10,676 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2c6dc8-a580-46e1-b422-81b2f1468bab/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (63)] Waiting until timeout for monitored process [2023-11-29 07:05:10,731 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-29 07:05:10,731 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 07:05:10,732 INFO L262 TraceCheckSpWp]: Trace formula consists of 184 conjuncts, 16 conjunts are in the unsatisfiable core [2023-11-29 07:05:10,734 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 07:05:11,317 INFO L134 CoverageAnalysis]: Checked inductivity of 79 backedges. 0 proven. 71 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2023-11-29 07:05:11,317 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 07:05:11,885 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 07:05:11,886 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [750887759] [2023-11-29 07:05:11,886 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 07:05:11,886 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1547681521] [2023-11-29 07:05:11,886 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1547681521] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 07:05:11,886 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 07:05:11,886 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2023-11-29 07:05:11,886 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [644094952] [2023-11-29 07:05:11,886 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 07:05:11,887 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-11-29 07:05:11,887 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 07:05:11,887 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-11-29 07:05:11,887 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=248, Unknown=0, NotChecked=0, Total=306 [2023-11-29 07:05:11,887 INFO L87 Difference]: Start difference. First operand 1902 states and 2387 transitions. Second operand has 11 states, 10 states have (on average 9.5) internal successors, (95), 11 states have internal predecessors, (95), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2023-11-29 07:05:13,731 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 07:05:13,732 INFO L93 Difference]: Finished difference Result 1920 states and 2401 transitions. [2023-11-29 07:05:13,732 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-29 07:05:13,732 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 9.5) internal successors, (95), 11 states have internal predecessors, (95), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) Word has length 109 [2023-11-29 07:05:13,732 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 07:05:13,735 INFO L225 Difference]: With dead ends: 1920 [2023-11-29 07:05:13,735 INFO L226 Difference]: Without dead ends: 1919 [2023-11-29 07:05:13,736 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 144 GetRequests, 125 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 51 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=91, Invalid=329, Unknown=0, NotChecked=0, Total=420 [2023-11-29 07:05:13,736 INFO L413 NwaCegarLoop]: 72 mSDtfsCounter, 94 mSDsluCounter, 286 mSDsCounter, 0 mSdLazyCounter, 814 mSolverCounterSat, 3 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 94 SdHoareTripleChecker+Valid, 358 SdHoareTripleChecker+Invalid, 819 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 814 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2023-11-29 07:05:13,736 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [94 Valid, 358 Invalid, 819 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 814 Invalid, 2 Unknown, 0 Unchecked, 1.6s Time] [2023-11-29 07:05:13,738 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1919 states. [2023-11-29 07:05:13,923 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1919 to 1902. [2023-11-29 07:05:13,924 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1902 states, 1821 states have (on average 1.2509610104338276) internal successors, (2278), 1845 states have internal predecessors, (2278), 54 states have call successors, (54), 2 states have call predecessors, (54), 2 states have return successors, (54), 54 states have call predecessors, (54), 54 states have call successors, (54) [2023-11-29 07:05:13,926 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1902 states to 1902 states and 2386 transitions. [2023-11-29 07:05:13,927 INFO L78 Accepts]: Start accepts. Automaton has 1902 states and 2386 transitions. Word has length 109 [2023-11-29 07:05:13,927 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 07:05:13,927 INFO L495 AbstractCegarLoop]: Abstraction has 1902 states and 2386 transitions. [2023-11-29 07:05:13,927 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 9.5) internal successors, (95), 11 states have internal predecessors, (95), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2023-11-29 07:05:13,927 INFO L276 IsEmpty]: Start isEmpty. Operand 1902 states and 2386 transitions. [2023-11-29 07:05:13,928 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2023-11-29 07:05:13,928 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 07:05:13,928 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, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 07:05:13,932 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2c6dc8-a580-46e1-b422-81b2f1468bab/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (63)] Ended with exit code 0 [2023-11-29 07:05:14,128 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 63 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2c6dc8-a580-46e1-b422-81b2f1468bab/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable66 [2023-11-29 07:05:14,128 INFO L420 AbstractCegarLoop]: === Iteration 68 === Targeting ULTIMATE.startErr30ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2023-11-29 07:05:14,129 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 07:05:14,129 INFO L85 PathProgramCache]: Analyzing trace with hash 1574299393, now seen corresponding path program 1 times [2023-11-29 07:05:14,129 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 07:05:14,129 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [57758852] [2023-11-29 07:05:14,129 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:05:14,129 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 07:05:14,134 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 07:05:14,134 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1015502493] [2023-11-29 07:05:14,135 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:05:14,135 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 07:05:14,135 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2c6dc8-a580-46e1-b422-81b2f1468bab/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 07:05:14,136 INFO L229 MonitoredProcess]: Starting monitored process 64 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2c6dc8-a580-46e1-b422-81b2f1468bab/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 07:05:14,136 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2c6dc8-a580-46e1-b422-81b2f1468bab/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (64)] Waiting until timeout for monitored process [2023-11-29 07:05:14,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:05:14,183 INFO L262 TraceCheckSpWp]: Trace formula consists of 184 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-29 07:05:14,185 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 07:05:14,616 INFO L134 CoverageAnalysis]: Checked inductivity of 89 backedges. 0 proven. 73 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2023-11-29 07:05:14,617 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 07:05:14,791 INFO L134 CoverageAnalysis]: Checked inductivity of 89 backedges. 0 proven. 73 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2023-11-29 07:05:14,792 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 07:05:14,792 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [57758852] [2023-11-29 07:05:14,792 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 07:05:14,792 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1015502493] [2023-11-29 07:05:14,792 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1015502493] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 07:05:14,792 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 07:05:14,792 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 11 [2023-11-29 07:05:14,792 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [104722774] [2023-11-29 07:05:14,792 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 07:05:14,793 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-29 07:05:14,793 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 07:05:14,793 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-29 07:05:14,793 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2023-11-29 07:05:14,793 INFO L87 Difference]: Start difference. First operand 1902 states and 2386 transitions. Second operand has 12 states, 11 states have (on average 16.545454545454547) internal successors, (182), 12 states have internal predecessors, (182), 10 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2023-11-29 07:05:15,542 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 07:05:15,542 INFO L93 Difference]: Finished difference Result 2177 states and 2684 transitions. [2023-11-29 07:05:15,542 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-29 07:05:15,542 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 16.545454545454547) internal successors, (182), 12 states have internal predecessors, (182), 10 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) Word has length 113 [2023-11-29 07:05:15,543 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 07:05:15,545 INFO L225 Difference]: With dead ends: 2177 [2023-11-29 07:05:15,545 INFO L226 Difference]: Without dead ends: 2176 [2023-11-29 07:05:15,545 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 227 GetRequests, 214 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=82, Invalid=128, Unknown=0, NotChecked=0, Total=210 [2023-11-29 07:05:15,546 INFO L413 NwaCegarLoop]: 85 mSDtfsCounter, 687 mSDsluCounter, 300 mSDsCounter, 0 mSdLazyCounter, 594 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 688 SdHoareTripleChecker+Valid, 385 SdHoareTripleChecker+Invalid, 615 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 594 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-11-29 07:05:15,546 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [688 Valid, 385 Invalid, 615 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 594 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-11-29 07:05:15,548 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2176 states. [2023-11-29 07:05:15,756 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2176 to 1853. [2023-11-29 07:05:15,757 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1853 states, 1774 states have (on average 1.241826381059752) internal successors, (2203), 1797 states have internal predecessors, (2203), 53 states have call successors, (53), 2 states have call predecessors, (53), 2 states have return successors, (53), 53 states have call predecessors, (53), 53 states have call successors, (53) [2023-11-29 07:05:15,759 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1853 states to 1853 states and 2309 transitions. [2023-11-29 07:05:15,759 INFO L78 Accepts]: Start accepts. Automaton has 1853 states and 2309 transitions. Word has length 113 [2023-11-29 07:05:15,760 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 07:05:15,760 INFO L495 AbstractCegarLoop]: Abstraction has 1853 states and 2309 transitions. [2023-11-29 07:05:15,760 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 16.545454545454547) internal successors, (182), 12 states have internal predecessors, (182), 10 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2023-11-29 07:05:15,760 INFO L276 IsEmpty]: Start isEmpty. Operand 1853 states and 2309 transitions. [2023-11-29 07:05:15,760 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2023-11-29 07:05:15,761 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 07:05:15,761 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, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 07:05:15,766 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2c6dc8-a580-46e1-b422-81b2f1468bab/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (64)] Forceful destruction successful, exit code 0 [2023-11-29 07:05:15,961 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 64 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2c6dc8-a580-46e1-b422-81b2f1468bab/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable67 [2023-11-29 07:05:15,961 INFO L420 AbstractCegarLoop]: === Iteration 69 === Targeting ULTIMATE.startErr37ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2023-11-29 07:05:15,961 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 07:05:15,962 INFO L85 PathProgramCache]: Analyzing trace with hash 1814693225, now seen corresponding path program 1 times [2023-11-29 07:05:15,962 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 07:05:15,962 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [463131085] [2023-11-29 07:05:15,962 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:05:15,962 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 07:05:15,969 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 07:05:15,969 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1337258267] [2023-11-29 07:05:15,969 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:05:15,969 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 07:05:15,970 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2c6dc8-a580-46e1-b422-81b2f1468bab/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 07:05:15,970 INFO L229 MonitoredProcess]: Starting monitored process 65 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2c6dc8-a580-46e1-b422-81b2f1468bab/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 07:05:15,971 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2c6dc8-a580-46e1-b422-81b2f1468bab/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (65)] Waiting until timeout for monitored process [2023-11-29 07:05:16,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:05:16,022 INFO L262 TraceCheckSpWp]: Trace formula consists of 188 conjuncts, 10 conjunts are in the unsatisfiable core [2023-11-29 07:05:16,024 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 07:05:16,325 INFO L134 CoverageAnalysis]: Checked inductivity of 83 backedges. 0 proven. 67 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2023-11-29 07:05:16,326 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 07:05:16,670 INFO L134 CoverageAnalysis]: Checked inductivity of 83 backedges. 0 proven. 67 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2023-11-29 07:05:16,671 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 07:05:16,671 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [463131085] [2023-11-29 07:05:16,671 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 07:05:16,671 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1337258267] [2023-11-29 07:05:16,671 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1337258267] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 07:05:16,671 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 07:05:16,671 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 18 [2023-11-29 07:05:16,671 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2146576391] [2023-11-29 07:05:16,671 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 07:05:16,672 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2023-11-29 07:05:16,672 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 07:05:16,672 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2023-11-29 07:05:16,672 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=244, Unknown=0, NotChecked=0, Total=306 [2023-11-29 07:05:16,672 INFO L87 Difference]: Start difference. First operand 1853 states and 2309 transitions. Second operand has 18 states, 18 states have (on average 9.722222222222221) internal successors, (175), 18 states have internal predecessors, (175), 7 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 7 states have call predecessors, (8), 7 states have call successors, (8) [2023-11-29 07:05:17,560 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 07:05:17,561 INFO L93 Difference]: Finished difference Result 1885 states and 2338 transitions. [2023-11-29 07:05:17,561 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2023-11-29 07:05:17,561 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 9.722222222222221) internal successors, (175), 18 states have internal predecessors, (175), 7 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 7 states have call predecessors, (8), 7 states have call successors, (8) Word has length 113 [2023-11-29 07:05:17,561 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 07:05:17,564 INFO L225 Difference]: With dead ends: 1885 [2023-11-29 07:05:17,564 INFO L226 Difference]: Without dead ends: 1849 [2023-11-29 07:05:17,565 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 237 GetRequests, 208 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 139 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=193, Invalid=737, Unknown=0, NotChecked=0, Total=930 [2023-11-29 07:05:17,565 INFO L413 NwaCegarLoop]: 99 mSDtfsCounter, 113 mSDsluCounter, 543 mSDsCounter, 0 mSdLazyCounter, 888 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 113 SdHoareTripleChecker+Valid, 642 SdHoareTripleChecker+Invalid, 897 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 888 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-11-29 07:05:17,565 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [113 Valid, 642 Invalid, 897 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 888 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-11-29 07:05:17,567 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1849 states. [2023-11-29 07:05:17,749 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1849 to 1847. [2023-11-29 07:05:17,750 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1847 states, 1768 states have (on average 1.240950226244344) internal successors, (2194), 1791 states have internal predecessors, (2194), 53 states have call successors, (53), 2 states have call predecessors, (53), 2 states have return successors, (53), 53 states have call predecessors, (53), 53 states have call successors, (53) [2023-11-29 07:05:17,752 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1847 states to 1847 states and 2300 transitions. [2023-11-29 07:05:17,753 INFO L78 Accepts]: Start accepts. Automaton has 1847 states and 2300 transitions. Word has length 113 [2023-11-29 07:05:17,753 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 07:05:17,753 INFO L495 AbstractCegarLoop]: Abstraction has 1847 states and 2300 transitions. [2023-11-29 07:05:17,753 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 9.722222222222221) internal successors, (175), 18 states have internal predecessors, (175), 7 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 7 states have call predecessors, (8), 7 states have call successors, (8) [2023-11-29 07:05:17,753 INFO L276 IsEmpty]: Start isEmpty. Operand 1847 states and 2300 transitions. [2023-11-29 07:05:17,754 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2023-11-29 07:05:17,754 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 07:05:17,754 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 07:05:17,759 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2c6dc8-a580-46e1-b422-81b2f1468bab/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (65)] Ended with exit code 0 [2023-11-29 07:05:17,954 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 65 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2c6dc8-a580-46e1-b422-81b2f1468bab/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable68 [2023-11-29 07:05:17,954 INFO L420 AbstractCegarLoop]: === Iteration 70 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2023-11-29 07:05:17,954 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 07:05:17,955 INFO L85 PathProgramCache]: Analyzing trace with hash -15507615, now seen corresponding path program 2 times [2023-11-29 07:05:17,955 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 07:05:17,955 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [230993126] [2023-11-29 07:05:17,955 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:05:17,955 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 07:05:17,961 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 07:05:17,961 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1736170790] [2023-11-29 07:05:17,961 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-29 07:05:17,962 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 07:05:17,962 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2c6dc8-a580-46e1-b422-81b2f1468bab/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 07:05:17,963 INFO L229 MonitoredProcess]: Starting monitored process 66 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2c6dc8-a580-46e1-b422-81b2f1468bab/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 07:05:17,964 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2c6dc8-a580-46e1-b422-81b2f1468bab/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (66)] Waiting until timeout for monitored process [2023-11-29 07:05:18,028 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-29 07:05:18,028 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 07:05:18,029 INFO L262 TraceCheckSpWp]: Trace formula consists of 194 conjuncts, 13 conjunts are in the unsatisfiable core [2023-11-29 07:05:18,031 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 07:05:18,415 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 3 proven. 96 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2023-11-29 07:05:18,415 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 07:05:18,565 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 07:05:18,565 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [230993126] [2023-11-29 07:05:18,565 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 07:05:18,565 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1736170790] [2023-11-29 07:05:18,565 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1736170790] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 07:05:18,565 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 07:05:18,565 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2023-11-29 07:05:18,565 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1822482018] [2023-11-29 07:05:18,565 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 07:05:18,566 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-29 07:05:18,566 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 07:05:18,566 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-29 07:05:18,566 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=155, Unknown=0, NotChecked=0, Total=210 [2023-11-29 07:05:18,566 INFO L87 Difference]: Start difference. First operand 1847 states and 2300 transitions. Second operand has 12 states, 11 states have (on average 9.272727272727273) internal successors, (102), 12 states have internal predecessors, (102), 4 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 4 states have call successors, (5) [2023-11-29 07:05:19,069 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 07:05:19,069 INFO L93 Difference]: Finished difference Result 1970 states and 2417 transitions. [2023-11-29 07:05:19,070 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-29 07:05:19,070 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 9.272727272727273) internal successors, (102), 12 states have internal predecessors, (102), 4 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 4 states have call successors, (5) Word has length 118 [2023-11-29 07:05:19,070 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 07:05:19,072 INFO L225 Difference]: With dead ends: 1970 [2023-11-29 07:05:19,072 INFO L226 Difference]: Without dead ends: 1968 [2023-11-29 07:05:19,072 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 134 GetRequests, 117 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=95, Invalid=247, Unknown=0, NotChecked=0, Total=342 [2023-11-29 07:05:19,073 INFO L413 NwaCegarLoop]: 45 mSDtfsCounter, 308 mSDsluCounter, 264 mSDsCounter, 0 mSdLazyCounter, 420 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 310 SdHoareTripleChecker+Valid, 309 SdHoareTripleChecker+Invalid, 421 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 420 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-29 07:05:19,073 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [310 Valid, 309 Invalid, 421 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 420 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-29 07:05:19,075 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1968 states. [2023-11-29 07:05:19,250 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1968 to 1859. [2023-11-29 07:05:19,252 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1859 states, 1780 states have (on average 1.2382022471910112) internal successors, (2204), 1803 states have internal predecessors, (2204), 53 states have call successors, (53), 2 states have call predecessors, (53), 2 states have return successors, (53), 53 states have call predecessors, (53), 53 states have call successors, (53) [2023-11-29 07:05:19,254 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1859 states to 1859 states and 2310 transitions. [2023-11-29 07:05:19,255 INFO L78 Accepts]: Start accepts. Automaton has 1859 states and 2310 transitions. Word has length 118 [2023-11-29 07:05:19,255 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 07:05:19,255 INFO L495 AbstractCegarLoop]: Abstraction has 1859 states and 2310 transitions. [2023-11-29 07:05:19,255 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 9.272727272727273) internal successors, (102), 12 states have internal predecessors, (102), 4 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 4 states have call successors, (5) [2023-11-29 07:05:19,255 INFO L276 IsEmpty]: Start isEmpty. Operand 1859 states and 2310 transitions. [2023-11-29 07:05:19,256 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2023-11-29 07:05:19,256 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 07:05:19,256 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, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 07:05:19,262 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2c6dc8-a580-46e1-b422-81b2f1468bab/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (66)] Forceful destruction successful, exit code 0 [2023-11-29 07:05:19,457 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 66 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2c6dc8-a580-46e1-b422-81b2f1468bab/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable69 [2023-11-29 07:05:19,457 INFO L420 AbstractCegarLoop]: === Iteration 71 === Targeting ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2023-11-29 07:05:19,457 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 07:05:19,457 INFO L85 PathProgramCache]: Analyzing trace with hash 1839062559, now seen corresponding path program 1 times [2023-11-29 07:05:19,457 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 07:05:19,457 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [861140098] [2023-11-29 07:05:19,457 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:05:19,457 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 07:05:19,463 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 07:05:19,463 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2046034561] [2023-11-29 07:05:19,463 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:05:19,463 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 07:05:19,463 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2c6dc8-a580-46e1-b422-81b2f1468bab/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 07:05:19,464 INFO L229 MonitoredProcess]: Starting monitored process 67 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2c6dc8-a580-46e1-b422-81b2f1468bab/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 07:05:19,465 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2c6dc8-a580-46e1-b422-81b2f1468bab/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (67)] Waiting until timeout for monitored process [2023-11-29 07:05:19,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:05:19,523 INFO L262 TraceCheckSpWp]: Trace formula consists of 198 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-29 07:05:19,524 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 07:05:19,685 INFO L134 CoverageAnalysis]: Checked inductivity of 93 backedges. 0 proven. 77 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2023-11-29 07:05:19,685 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 07:05:20,233 INFO L134 CoverageAnalysis]: Checked inductivity of 93 backedges. 0 proven. 77 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2023-11-29 07:05:20,233 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 07:05:20,233 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [861140098] [2023-11-29 07:05:20,233 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 07:05:20,233 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2046034561] [2023-11-29 07:05:20,233 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2046034561] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 07:05:20,233 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 07:05:20,233 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 11 [2023-11-29 07:05:20,233 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [993866946] [2023-11-29 07:05:20,234 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 07:05:20,234 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-29 07:05:20,234 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 07:05:20,234 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-29 07:05:20,234 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=94, Unknown=0, NotChecked=0, Total=132 [2023-11-29 07:05:20,235 INFO L87 Difference]: Start difference. First operand 1859 states and 2310 transitions. Second operand has 12 states, 11 states have (on average 17.181818181818183) internal successors, (189), 12 states have internal predecessors, (189), 7 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 7 states have call predecessors, (8), 7 states have call successors, (8) [2023-11-29 07:05:21,721 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 07:05:21,722 INFO L93 Difference]: Finished difference Result 2258 states and 2760 transitions. [2023-11-29 07:05:21,722 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-11-29 07:05:21,722 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 17.181818181818183) internal successors, (189), 12 states have internal predecessors, (189), 7 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 7 states have call predecessors, (8), 7 states have call successors, (8) Word has length 119 [2023-11-29 07:05:21,723 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 07:05:21,724 INFO L225 Difference]: With dead ends: 2258 [2023-11-29 07:05:21,724 INFO L226 Difference]: Without dead ends: 2257 [2023-11-29 07:05:21,725 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 249 GetRequests, 226 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 114 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=188, Invalid=412, Unknown=0, NotChecked=0, Total=600 [2023-11-29 07:05:21,725 INFO L413 NwaCegarLoop]: 81 mSDtfsCounter, 534 mSDsluCounter, 463 mSDsCounter, 0 mSdLazyCounter, 826 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 534 SdHoareTripleChecker+Valid, 544 SdHoareTripleChecker+Invalid, 852 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 826 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2023-11-29 07:05:21,725 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [534 Valid, 544 Invalid, 852 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 826 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2023-11-29 07:05:21,727 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2257 states. [2023-11-29 07:05:21,923 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2257 to 1995. [2023-11-29 07:05:21,924 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1995 states, 1912 states have (on average 1.2432008368200838) internal successors, (2377), 1935 states have internal predecessors, (2377), 57 states have call successors, (57), 2 states have call predecessors, (57), 2 states have return successors, (57), 57 states have call predecessors, (57), 57 states have call successors, (57) [2023-11-29 07:05:21,926 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1995 states to 1995 states and 2491 transitions. [2023-11-29 07:05:21,926 INFO L78 Accepts]: Start accepts. Automaton has 1995 states and 2491 transitions. Word has length 119 [2023-11-29 07:05:21,927 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 07:05:21,927 INFO L495 AbstractCegarLoop]: Abstraction has 1995 states and 2491 transitions. [2023-11-29 07:05:21,927 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 17.181818181818183) internal successors, (189), 12 states have internal predecessors, (189), 7 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 7 states have call predecessors, (8), 7 states have call successors, (8) [2023-11-29 07:05:21,927 INFO L276 IsEmpty]: Start isEmpty. Operand 1995 states and 2491 transitions. [2023-11-29 07:05:21,927 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2023-11-29 07:05:21,927 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 07:05:21,928 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, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 07:05:21,932 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2c6dc8-a580-46e1-b422-81b2f1468bab/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (67)] Forceful destruction successful, exit code 0 [2023-11-29 07:05:22,128 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable70,67 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2c6dc8-a580-46e1-b422-81b2f1468bab/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 07:05:22,128 INFO L420 AbstractCegarLoop]: === Iteration 72 === Targeting ULTIMATE.startErr33ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2023-11-29 07:05:22,128 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 07:05:22,128 INFO L85 PathProgramCache]: Analyzing trace with hash -707769978, now seen corresponding path program 1 times [2023-11-29 07:05:22,128 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 07:05:22,129 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1347608810] [2023-11-29 07:05:22,129 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:05:22,129 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 07:05:22,136 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 07:05:22,136 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1881497013] [2023-11-29 07:05:22,136 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:05:22,136 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 07:05:22,136 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2c6dc8-a580-46e1-b422-81b2f1468bab/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 07:05:22,137 INFO L229 MonitoredProcess]: Starting monitored process 68 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2c6dc8-a580-46e1-b422-81b2f1468bab/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 07:05:22,138 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2c6dc8-a580-46e1-b422-81b2f1468bab/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (68)] Waiting until timeout for monitored process [2023-11-29 07:05:22,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:05:22,189 INFO L262 TraceCheckSpWp]: Trace formula consists of 199 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-29 07:05:22,190 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 07:05:22,272 INFO L134 CoverageAnalysis]: Checked inductivity of 93 backedges. 0 proven. 52 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2023-11-29 07:05:22,272 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 07:05:22,374 INFO L134 CoverageAnalysis]: Checked inductivity of 93 backedges. 0 proven. 52 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2023-11-29 07:05:22,374 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 07:05:22,374 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1347608810] [2023-11-29 07:05:22,375 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 07:05:22,375 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1881497013] [2023-11-29 07:05:22,375 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1881497013] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 07:05:22,375 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 07:05:22,375 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 9 [2023-11-29 07:05:22,375 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1742867412] [2023-11-29 07:05:22,375 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 07:05:22,376 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-29 07:05:22,376 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 07:05:22,376 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-29 07:05:22,376 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2023-11-29 07:05:22,376 INFO L87 Difference]: Start difference. First operand 1995 states and 2491 transitions. Second operand has 10 states, 9 states have (on average 16.11111111111111) internal successors, (145), 10 states have internal predecessors, (145), 5 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 5 states have call predecessors, (6), 5 states have call successors, (6) [2023-11-29 07:05:22,858 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 07:05:22,858 INFO L93 Difference]: Finished difference Result 2876 states and 3581 transitions. [2023-11-29 07:05:22,858 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-29 07:05:22,858 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 16.11111111111111) internal successors, (145), 10 states have internal predecessors, (145), 5 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 5 states have call predecessors, (6), 5 states have call successors, (6) Word has length 120 [2023-11-29 07:05:22,859 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 07:05:22,860 INFO L225 Difference]: With dead ends: 2876 [2023-11-29 07:05:22,861 INFO L226 Difference]: Without dead ends: 2875 [2023-11-29 07:05:22,861 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 242 GetRequests, 230 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182 [2023-11-29 07:05:22,861 INFO L413 NwaCegarLoop]: 122 mSDtfsCounter, 216 mSDsluCounter, 551 mSDsCounter, 0 mSdLazyCounter, 127 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 216 SdHoareTripleChecker+Valid, 673 SdHoareTripleChecker+Invalid, 131 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 127 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-29 07:05:22,861 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [216 Valid, 673 Invalid, 131 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 127 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-29 07:05:22,863 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2875 states. [2023-11-29 07:05:23,125 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2875 to 2645. [2023-11-29 07:05:23,126 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2645 states, 2544 states have (on average 1.2523584905660377) internal successors, (3186), 2567 states have internal predecessors, (3186), 75 states have call successors, (75), 2 states have call predecessors, (75), 2 states have return successors, (75), 75 states have call predecessors, (75), 75 states have call successors, (75) [2023-11-29 07:05:23,129 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2645 states to 2645 states and 3336 transitions. [2023-11-29 07:05:23,129 INFO L78 Accepts]: Start accepts. Automaton has 2645 states and 3336 transitions. Word has length 120 [2023-11-29 07:05:23,129 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 07:05:23,129 INFO L495 AbstractCegarLoop]: Abstraction has 2645 states and 3336 transitions. [2023-11-29 07:05:23,129 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 16.11111111111111) internal successors, (145), 10 states have internal predecessors, (145), 5 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 5 states have call predecessors, (6), 5 states have call successors, (6) [2023-11-29 07:05:23,130 INFO L276 IsEmpty]: Start isEmpty. Operand 2645 states and 3336 transitions. [2023-11-29 07:05:23,130 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2023-11-29 07:05:23,130 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 07:05:23,130 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, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 07:05:23,135 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2c6dc8-a580-46e1-b422-81b2f1468bab/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (68)] Forceful destruction successful, exit code 0 [2023-11-29 07:05:23,331 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable71,68 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2c6dc8-a580-46e1-b422-81b2f1468bab/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 07:05:23,331 INFO L420 AbstractCegarLoop]: === Iteration 73 === Targeting ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2023-11-29 07:05:23,331 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 07:05:23,331 INFO L85 PathProgramCache]: Analyzing trace with hash 1176364586, now seen corresponding path program 1 times [2023-11-29 07:05:23,331 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 07:05:23,331 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [575330920] [2023-11-29 07:05:23,332 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:05:23,332 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 07:05:23,339 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 07:05:23,339 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [313531011] [2023-11-29 07:05:23,339 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:05:23,339 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 07:05:23,339 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2c6dc8-a580-46e1-b422-81b2f1468bab/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 07:05:23,340 INFO L229 MonitoredProcess]: Starting monitored process 69 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2c6dc8-a580-46e1-b422-81b2f1468bab/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 07:05:23,341 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2c6dc8-a580-46e1-b422-81b2f1468bab/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (69)] Waiting until timeout for monitored process [2023-11-29 07:05:23,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:05:23,395 INFO L262 TraceCheckSpWp]: Trace formula consists of 199 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-29 07:05:23,397 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 07:05:23,652 INFO L134 CoverageAnalysis]: Checked inductivity of 93 backedges. 0 proven. 77 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2023-11-29 07:05:23,652 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 07:05:24,052 INFO L134 CoverageAnalysis]: Checked inductivity of 93 backedges. 0 proven. 77 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2023-11-29 07:05:24,052 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 07:05:24,053 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [575330920] [2023-11-29 07:05:24,053 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 07:05:24,053 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [313531011] [2023-11-29 07:05:24,053 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [313531011] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 07:05:24,053 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 07:05:24,053 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 11 [2023-11-29 07:05:24,053 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1950526435] [2023-11-29 07:05:24,053 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 07:05:24,054 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-29 07:05:24,054 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 07:05:24,054 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-29 07:05:24,054 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2023-11-29 07:05:24,054 INFO L87 Difference]: Start difference. First operand 2645 states and 3336 transitions. Second operand has 12 states, 11 states have (on average 17.818181818181817) internal successors, (196), 12 states have internal predecessors, (196), 8 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 8 states have call predecessors, (10), 8 states have call successors, (10) [2023-11-29 07:05:25,039 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 07:05:25,039 INFO L93 Difference]: Finished difference Result 2701 states and 3382 transitions. [2023-11-29 07:05:25,039 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-11-29 07:05:25,040 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 17.818181818181817) internal successors, (196), 12 states have internal predecessors, (196), 8 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 8 states have call predecessors, (10), 8 states have call successors, (10) Word has length 120 [2023-11-29 07:05:25,040 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 07:05:25,042 INFO L225 Difference]: With dead ends: 2701 [2023-11-29 07:05:25,042 INFO L226 Difference]: Without dead ends: 2700 [2023-11-29 07:05:25,042 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 246 GetRequests, 228 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=139, Invalid=241, Unknown=0, NotChecked=0, Total=380 [2023-11-29 07:05:25,042 INFO L413 NwaCegarLoop]: 81 mSDtfsCounter, 625 mSDsluCounter, 359 mSDsCounter, 0 mSdLazyCounter, 605 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 625 SdHoareTripleChecker+Valid, 440 SdHoareTripleChecker+Invalid, 639 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 605 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-11-29 07:05:25,043 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [625 Valid, 440 Invalid, 639 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 605 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-11-29 07:05:25,044 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2700 states. [2023-11-29 07:05:25,433 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2700 to 2644. [2023-11-29 07:05:25,435 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2644 states, 2544 states have (on average 1.2382075471698113) internal successors, (3150), 2566 states have internal predecessors, (3150), 75 states have call successors, (75), 2 states have call predecessors, (75), 2 states have return successors, (75), 75 states have call predecessors, (75), 75 states have call successors, (75) [2023-11-29 07:05:25,440 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2644 states to 2644 states and 3300 transitions. [2023-11-29 07:05:25,440 INFO L78 Accepts]: Start accepts. Automaton has 2644 states and 3300 transitions. Word has length 120 [2023-11-29 07:05:25,440 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 07:05:25,440 INFO L495 AbstractCegarLoop]: Abstraction has 2644 states and 3300 transitions. [2023-11-29 07:05:25,441 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 17.818181818181817) internal successors, (196), 12 states have internal predecessors, (196), 8 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 8 states have call predecessors, (10), 8 states have call successors, (10) [2023-11-29 07:05:25,441 INFO L276 IsEmpty]: Start isEmpty. Operand 2644 states and 3300 transitions. [2023-11-29 07:05:25,442 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2023-11-29 07:05:25,442 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 07:05:25,442 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 07:05:25,446 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2c6dc8-a580-46e1-b422-81b2f1468bab/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (69)] Ended with exit code 0 [2023-11-29 07:05:25,642 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable72,69 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2c6dc8-a580-46e1-b422-81b2f1468bab/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 07:05:25,642 INFO L420 AbstractCegarLoop]: === Iteration 74 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2023-11-29 07:05:25,643 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 07:05:25,643 INFO L85 PathProgramCache]: Analyzing trace with hash 2109607269, now seen corresponding path program 2 times [2023-11-29 07:05:25,643 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 07:05:25,643 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1462134001] [2023-11-29 07:05:25,643 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:05:25,643 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 07:05:25,651 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 07:05:25,651 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [422329783] [2023-11-29 07:05:25,652 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-29 07:05:25,652 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 07:05:25,652 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2c6dc8-a580-46e1-b422-81b2f1468bab/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 07:05:25,653 INFO L229 MonitoredProcess]: Starting monitored process 70 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2c6dc8-a580-46e1-b422-81b2f1468bab/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 07:05:25,653 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2c6dc8-a580-46e1-b422-81b2f1468bab/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (70)] Waiting until timeout for monitored process [2023-11-29 07:05:25,724 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-29 07:05:25,725 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 07:05:25,726 INFO L262 TraceCheckSpWp]: Trace formula consists of 202 conjuncts, 14 conjunts are in the unsatisfiable core [2023-11-29 07:05:25,727 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 07:05:26,163 INFO L134 CoverageAnalysis]: Checked inductivity of 124 backedges. 3 proven. 108 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2023-11-29 07:05:26,163 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 07:05:26,329 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 07:05:26,330 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1462134001] [2023-11-29 07:05:26,330 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 07:05:26,330 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [422329783] [2023-11-29 07:05:26,330 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [422329783] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 07:05:26,330 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 07:05:26,330 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2023-11-29 07:05:26,330 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [171206458] [2023-11-29 07:05:26,330 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 07:05:26,330 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-11-29 07:05:26,330 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 07:05:26,331 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-11-29 07:05:26,331 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=212, Unknown=0, NotChecked=0, Total=272 [2023-11-29 07:05:26,331 INFO L87 Difference]: Start difference. First operand 2644 states and 3300 transitions. Second operand has 13 states, 12 states have (on average 8.833333333333334) internal successors, (106), 13 states have internal predecessors, (106), 4 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 4 states have call successors, (5) [2023-11-29 07:05:27,287 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 07:05:27,287 INFO L93 Difference]: Finished difference Result 2770 states and 3428 transitions. [2023-11-29 07:05:27,287 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-11-29 07:05:27,288 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 8.833333333333334) internal successors, (106), 13 states have internal predecessors, (106), 4 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 4 states have call successors, (5) Word has length 122 [2023-11-29 07:05:27,288 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 07:05:27,290 INFO L225 Difference]: With dead ends: 2770 [2023-11-29 07:05:27,290 INFO L226 Difference]: Without dead ends: 2768 [2023-11-29 07:05:27,290 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 147 GetRequests, 123 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 114 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=171, Invalid=479, Unknown=0, NotChecked=0, Total=650 [2023-11-29 07:05:27,291 INFO L413 NwaCegarLoop]: 33 mSDtfsCounter, 509 mSDsluCounter, 228 mSDsCounter, 0 mSdLazyCounter, 576 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 510 SdHoareTripleChecker+Valid, 261 SdHoareTripleChecker+Invalid, 585 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 576 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-11-29 07:05:27,291 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [510 Valid, 261 Invalid, 585 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 576 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-11-29 07:05:27,292 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2768 states. [2023-11-29 07:05:27,555 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2768 to 2644. [2023-11-29 07:05:27,556 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2644 states, 2544 states have (on average 1.23624213836478) internal successors, (3145), 2566 states have internal predecessors, (3145), 75 states have call successors, (75), 2 states have call predecessors, (75), 2 states have return successors, (75), 75 states have call predecessors, (75), 75 states have call successors, (75) [2023-11-29 07:05:27,559 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2644 states to 2644 states and 3295 transitions. [2023-11-29 07:05:27,559 INFO L78 Accepts]: Start accepts. Automaton has 2644 states and 3295 transitions. Word has length 122 [2023-11-29 07:05:27,559 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 07:05:27,559 INFO L495 AbstractCegarLoop]: Abstraction has 2644 states and 3295 transitions. [2023-11-29 07:05:27,560 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 8.833333333333334) internal successors, (106), 13 states have internal predecessors, (106), 4 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 4 states have call successors, (5) [2023-11-29 07:05:27,560 INFO L276 IsEmpty]: Start isEmpty. Operand 2644 states and 3295 transitions. [2023-11-29 07:05:27,561 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2023-11-29 07:05:27,561 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 07:05:27,561 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, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 07:05:27,565 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2c6dc8-a580-46e1-b422-81b2f1468bab/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (70)] Ended with exit code 0 [2023-11-29 07:05:27,761 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 70 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2c6dc8-a580-46e1-b422-81b2f1468bab/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable73 [2023-11-29 07:05:27,761 INFO L420 AbstractCegarLoop]: === Iteration 75 === Targeting ULTIMATE.startErr56ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2023-11-29 07:05:27,762 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 07:05:27,762 INFO L85 PathProgramCache]: Analyzing trace with hash -1087371409, now seen corresponding path program 1 times [2023-11-29 07:05:27,762 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 07:05:27,762 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1824873679] [2023-11-29 07:05:27,762 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:05:27,762 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 07:05:27,770 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 07:05:27,770 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [682515994] [2023-11-29 07:05:27,770 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:05:27,770 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 07:05:27,770 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2c6dc8-a580-46e1-b422-81b2f1468bab/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 07:05:27,771 INFO L229 MonitoredProcess]: Starting monitored process 71 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2c6dc8-a580-46e1-b422-81b2f1468bab/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 07:05:27,772 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2c6dc8-a580-46e1-b422-81b2f1468bab/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (71)] Waiting until timeout for monitored process [2023-11-29 07:05:27,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:05:27,826 INFO L262 TraceCheckSpWp]: Trace formula consists of 211 conjuncts, 13 conjunts are in the unsatisfiable core [2023-11-29 07:05:27,828 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 07:05:28,284 INFO L134 CoverageAnalysis]: Checked inductivity of 83 backedges. 0 proven. 67 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2023-11-29 07:05:28,284 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 07:05:28,590 INFO L134 CoverageAnalysis]: Checked inductivity of 83 backedges. 22 proven. 45 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2023-11-29 07:05:28,590 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 07:05:28,590 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1824873679] [2023-11-29 07:05:28,590 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 07:05:28,590 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [682515994] [2023-11-29 07:05:28,590 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [682515994] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 07:05:28,591 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 07:05:28,591 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12] total 23 [2023-11-29 07:05:28,591 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [888041109] [2023-11-29 07:05:28,591 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 07:05:28,592 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2023-11-29 07:05:28,592 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 07:05:28,592 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2023-11-29 07:05:28,592 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=85, Invalid=467, Unknown=0, NotChecked=0, Total=552 [2023-11-29 07:05:28,593 INFO L87 Difference]: Start difference. First operand 2644 states and 3295 transitions. Second operand has 24 states, 23 states have (on average 9.347826086956522) internal successors, (215), 24 states have internal predecessors, (215), 7 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 7 states have call predecessors, (8), 7 states have call successors, (8) [2023-11-29 07:05:30,626 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 07:05:30,626 INFO L93 Difference]: Finished difference Result 2890 states and 3571 transitions. [2023-11-29 07:05:30,627 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2023-11-29 07:05:30,627 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 23 states have (on average 9.347826086956522) internal successors, (215), 24 states have internal predecessors, (215), 7 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 7 states have call predecessors, (8), 7 states have call successors, (8) Word has length 132 [2023-11-29 07:05:30,627 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 07:05:30,629 INFO L225 Difference]: With dead ends: 2890 [2023-11-29 07:05:30,630 INFO L226 Difference]: Without dead ends: 2889 [2023-11-29 07:05:30,630 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 289 GetRequests, 240 SyntacticMatches, 0 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 581 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=369, Invalid=2181, Unknown=0, NotChecked=0, Total=2550 [2023-11-29 07:05:30,630 INFO L413 NwaCegarLoop]: 102 mSDtfsCounter, 462 mSDsluCounter, 936 mSDsCounter, 0 mSdLazyCounter, 2042 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 462 SdHoareTripleChecker+Valid, 1038 SdHoareTripleChecker+Invalid, 2054 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 2042 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2023-11-29 07:05:30,631 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [462 Valid, 1038 Invalid, 2054 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 2042 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2023-11-29 07:05:30,632 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2889 states. [2023-11-29 07:05:30,912 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2889 to 2799. [2023-11-29 07:05:30,914 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2799 states, 2695 states have (on average 1.2404452690166976) internal successors, (3343), 2717 states have internal predecessors, (3343), 79 states have call successors, (79), 2 states have call predecessors, (79), 2 states have return successors, (79), 79 states have call predecessors, (79), 79 states have call successors, (79) [2023-11-29 07:05:30,917 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2799 states to 2799 states and 3501 transitions. [2023-11-29 07:05:30,917 INFO L78 Accepts]: Start accepts. Automaton has 2799 states and 3501 transitions. Word has length 132 [2023-11-29 07:05:30,917 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 07:05:30,917 INFO L495 AbstractCegarLoop]: Abstraction has 2799 states and 3501 transitions. [2023-11-29 07:05:30,917 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 23 states have (on average 9.347826086956522) internal successors, (215), 24 states have internal predecessors, (215), 7 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 7 states have call predecessors, (8), 7 states have call successors, (8) [2023-11-29 07:05:30,917 INFO L276 IsEmpty]: Start isEmpty. Operand 2799 states and 3501 transitions. [2023-11-29 07:05:30,918 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2023-11-29 07:05:30,919 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 07:05:30,919 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 07:05:30,923 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2c6dc8-a580-46e1-b422-81b2f1468bab/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (71)] Ended with exit code 0 [2023-11-29 07:05:31,119 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 71 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2c6dc8-a580-46e1-b422-81b2f1468bab/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable74 [2023-11-29 07:05:31,119 INFO L420 AbstractCegarLoop]: === Iteration 76 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2023-11-29 07:05:31,119 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 07:05:31,120 INFO L85 PathProgramCache]: Analyzing trace with hash -1124290319, now seen corresponding path program 2 times [2023-11-29 07:05:31,120 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 07:05:31,120 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1084305362] [2023-11-29 07:05:31,120 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:05:31,120 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 07:05:31,126 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 07:05:31,126 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1802952862] [2023-11-29 07:05:31,126 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-29 07:05:31,127 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 07:05:31,127 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2c6dc8-a580-46e1-b422-81b2f1468bab/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 07:05:31,128 INFO L229 MonitoredProcess]: Starting monitored process 72 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2c6dc8-a580-46e1-b422-81b2f1468bab/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 07:05:31,128 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2c6dc8-a580-46e1-b422-81b2f1468bab/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (72)] Waiting until timeout for monitored process [2023-11-29 07:05:31,184 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-29 07:05:31,184 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 07:05:31,185 INFO L262 TraceCheckSpWp]: Trace formula consists of 222 conjuncts, 19 conjunts are in the unsatisfiable core [2023-11-29 07:05:31,188 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 07:05:31,836 INFO L134 CoverageAnalysis]: Checked inductivity of 130 backedges. 0 proven. 117 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2023-11-29 07:05:31,836 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 07:05:31,995 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 07:05:31,996 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1084305362] [2023-11-29 07:05:31,996 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 07:05:31,996 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1802952862] [2023-11-29 07:05:31,996 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1802952862] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 07:05:31,996 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 07:05:31,996 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16] total 16 [2023-11-29 07:05:31,996 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [415027667] [2023-11-29 07:05:31,996 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 07:05:31,997 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2023-11-29 07:05:31,997 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 07:05:31,997 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2023-11-29 07:05:31,997 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=88, Invalid=332, Unknown=0, NotChecked=0, Total=420 [2023-11-29 07:05:31,997 INFO L87 Difference]: Start difference. First operand 2799 states and 3501 transitions. Second operand has 17 states, 16 states have (on average 7.25) internal successors, (116), 17 states have internal predecessors, (116), 5 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 4 states have call predecessors, (5), 5 states have call successors, (5) [2023-11-29 07:05:33,591 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 07:05:33,591 INFO L93 Difference]: Finished difference Result 3079 states and 3776 transitions. [2023-11-29 07:05:33,591 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2023-11-29 07:05:33,592 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 7.25) internal successors, (116), 17 states have internal predecessors, (116), 5 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 4 states have call predecessors, (5), 5 states have call successors, (5) Word has length 132 [2023-11-29 07:05:33,592 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 07:05:33,594 INFO L225 Difference]: With dead ends: 3079 [2023-11-29 07:05:33,594 INFO L226 Difference]: Without dead ends: 3077 [2023-11-29 07:05:33,594 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 171 GetRequests, 131 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 276 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=383, Invalid=1339, Unknown=0, NotChecked=0, Total=1722 [2023-11-29 07:05:33,595 INFO L413 NwaCegarLoop]: 119 mSDtfsCounter, 746 mSDsluCounter, 1163 mSDsCounter, 0 mSdLazyCounter, 2024 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 748 SdHoareTripleChecker+Valid, 1282 SdHoareTripleChecker+Invalid, 2033 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 2024 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-11-29 07:05:33,595 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [748 Valid, 1282 Invalid, 2033 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 2024 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-11-29 07:05:33,596 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3077 states. [2023-11-29 07:05:33,880 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3077 to 2865. [2023-11-29 07:05:33,882 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2865 states, 2761 states have (on average 1.2350597609561753) internal successors, (3410), 2783 states have internal predecessors, (3410), 79 states have call successors, (79), 2 states have call predecessors, (79), 2 states have return successors, (79), 79 states have call predecessors, (79), 79 states have call successors, (79) [2023-11-29 07:05:33,885 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2865 states to 2865 states and 3568 transitions. [2023-11-29 07:05:33,885 INFO L78 Accepts]: Start accepts. Automaton has 2865 states and 3568 transitions. Word has length 132 [2023-11-29 07:05:33,885 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 07:05:33,885 INFO L495 AbstractCegarLoop]: Abstraction has 2865 states and 3568 transitions. [2023-11-29 07:05:33,885 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 7.25) internal successors, (116), 17 states have internal predecessors, (116), 5 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 4 states have call predecessors, (5), 5 states have call successors, (5) [2023-11-29 07:05:33,885 INFO L276 IsEmpty]: Start isEmpty. Operand 2865 states and 3568 transitions. [2023-11-29 07:05:33,886 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2023-11-29 07:05:33,886 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 07:05:33,886 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, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 07:05:33,890 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2c6dc8-a580-46e1-b422-81b2f1468bab/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (72)] Ended with exit code 0 [2023-11-29 07:05:34,086 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable75,72 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2c6dc8-a580-46e1-b422-81b2f1468bab/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 07:05:34,087 INFO L420 AbstractCegarLoop]: === Iteration 77 === Targeting ULTIMATE.startErr57ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2023-11-29 07:05:34,087 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 07:05:34,087 INFO L85 PathProgramCache]: Analyzing trace with hash 651224865, now seen corresponding path program 1 times [2023-11-29 07:05:34,087 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 07:05:34,087 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [861495669] [2023-11-29 07:05:34,087 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:05:34,087 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 07:05:34,095 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 07:05:34,095 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1854347195] [2023-11-29 07:05:34,095 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:05:34,095 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 07:05:34,095 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2c6dc8-a580-46e1-b422-81b2f1468bab/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 07:05:34,096 INFO L229 MonitoredProcess]: Starting monitored process 73 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2c6dc8-a580-46e1-b422-81b2f1468bab/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 07:05:34,097 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2c6dc8-a580-46e1-b422-81b2f1468bab/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (73)] Waiting until timeout for monitored process [2023-11-29 07:05:34,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:05:34,153 INFO L262 TraceCheckSpWp]: Trace formula consists of 212 conjuncts, 11 conjunts are in the unsatisfiable core [2023-11-29 07:05:34,155 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 07:05:34,536 INFO L134 CoverageAnalysis]: Checked inductivity of 83 backedges. 0 proven. 67 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2023-11-29 07:05:34,536 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 07:05:34,882 INFO L134 CoverageAnalysis]: Checked inductivity of 83 backedges. 0 proven. 67 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2023-11-29 07:05:34,882 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 07:05:34,882 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [861495669] [2023-11-29 07:05:34,882 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 07:05:34,882 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1854347195] [2023-11-29 07:05:34,882 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1854347195] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 07:05:34,882 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 07:05:34,883 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 18 [2023-11-29 07:05:34,883 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [248341703] [2023-11-29 07:05:34,883 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 07:05:34,883 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2023-11-29 07:05:34,883 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 07:05:34,884 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2023-11-29 07:05:34,884 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=251, Unknown=0, NotChecked=0, Total=306 [2023-11-29 07:05:34,884 INFO L87 Difference]: Start difference. First operand 2865 states and 3568 transitions. Second operand has 18 states, 18 states have (on average 10.833333333333334) internal successors, (195), 18 states have internal predecessors, (195), 7 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 7 states have call predecessors, (8), 7 states have call successors, (8) [2023-11-29 07:05:35,979 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 07:05:35,979 INFO L93 Difference]: Finished difference Result 2872 states and 3574 transitions. [2023-11-29 07:05:35,980 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2023-11-29 07:05:35,980 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 10.833333333333334) internal successors, (195), 18 states have internal predecessors, (195), 7 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 7 states have call predecessors, (8), 7 states have call successors, (8) Word has length 133 [2023-11-29 07:05:35,980 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 07:05:35,982 INFO L225 Difference]: With dead ends: 2872 [2023-11-29 07:05:35,982 INFO L226 Difference]: Without dead ends: 2849 [2023-11-29 07:05:35,982 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 276 GetRequests, 248 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 131 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=165, Invalid=705, Unknown=0, NotChecked=0, Total=870 [2023-11-29 07:05:35,983 INFO L413 NwaCegarLoop]: 96 mSDtfsCounter, 104 mSDsluCounter, 611 mSDsCounter, 0 mSdLazyCounter, 1075 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 104 SdHoareTripleChecker+Valid, 707 SdHoareTripleChecker+Invalid, 1084 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 1075 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-11-29 07:05:35,983 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [104 Valid, 707 Invalid, 1084 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 1075 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-11-29 07:05:35,984 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2849 states. [2023-11-29 07:05:36,265 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2849 to 2849. [2023-11-29 07:05:36,266 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2849 states, 2745 states have (on average 1.2360655737704918) internal successors, (3393), 2767 states have internal predecessors, (3393), 79 states have call successors, (79), 2 states have call predecessors, (79), 2 states have return successors, (79), 79 states have call predecessors, (79), 79 states have call successors, (79) [2023-11-29 07:05:36,269 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2849 states to 2849 states and 3551 transitions. [2023-11-29 07:05:36,270 INFO L78 Accepts]: Start accepts. Automaton has 2849 states and 3551 transitions. Word has length 133 [2023-11-29 07:05:36,270 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 07:05:36,270 INFO L495 AbstractCegarLoop]: Abstraction has 2849 states and 3551 transitions. [2023-11-29 07:05:36,270 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 10.833333333333334) internal successors, (195), 18 states have internal predecessors, (195), 7 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 7 states have call predecessors, (8), 7 states have call successors, (8) [2023-11-29 07:05:36,270 INFO L276 IsEmpty]: Start isEmpty. Operand 2849 states and 3551 transitions. [2023-11-29 07:05:36,271 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2023-11-29 07:05:36,271 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 07:05:36,271 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, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 07:05:36,275 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2c6dc8-a580-46e1-b422-81b2f1468bab/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (73)] Ended with exit code 0 [2023-11-29 07:05:36,471 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable76,73 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2c6dc8-a580-46e1-b422-81b2f1468bab/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 07:05:36,472 INFO L420 AbstractCegarLoop]: === Iteration 78 === Targeting ULTIMATE.startErr53ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2023-11-29 07:05:36,472 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 07:05:36,472 INFO L85 PathProgramCache]: Analyzing trace with hash -233726485, now seen corresponding path program 1 times [2023-11-29 07:05:36,472 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 07:05:36,472 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [282739609] [2023-11-29 07:05:36,472 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:05:36,472 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 07:05:36,481 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 07:05:36,481 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [689044182] [2023-11-29 07:05:36,481 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:05:36,481 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 07:05:36,481 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2c6dc8-a580-46e1-b422-81b2f1468bab/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 07:05:36,482 INFO L229 MonitoredProcess]: Starting monitored process 74 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2c6dc8-a580-46e1-b422-81b2f1468bab/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 07:05:36,483 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2c6dc8-a580-46e1-b422-81b2f1468bab/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (74)] Waiting until timeout for monitored process [2023-11-29 07:05:36,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:05:36,539 INFO L262 TraceCheckSpWp]: Trace formula consists of 216 conjuncts, 10 conjunts are in the unsatisfiable core [2023-11-29 07:05:36,541 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 07:05:36,812 INFO L134 CoverageAnalysis]: Checked inductivity of 91 backedges. 0 proven. 75 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2023-11-29 07:05:36,812 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 07:05:37,048 INFO L134 CoverageAnalysis]: Checked inductivity of 91 backedges. 0 proven. 75 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2023-11-29 07:05:37,049 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 07:05:37,049 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [282739609] [2023-11-29 07:05:37,049 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 07:05:37,049 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [689044182] [2023-11-29 07:05:37,049 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [689044182] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 07:05:37,049 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 07:05:37,049 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 16 [2023-11-29 07:05:37,049 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1309978000] [2023-11-29 07:05:37,049 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 07:05:37,049 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2023-11-29 07:05:37,049 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 07:05:37,050 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2023-11-29 07:05:37,050 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=218, Unknown=0, NotChecked=0, Total=272 [2023-11-29 07:05:37,050 INFO L87 Difference]: Start difference. First operand 2849 states and 3551 transitions. Second operand has 17 states, 16 states have (on average 10.25) internal successors, (164), 17 states have internal predecessors, (164), 5 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 5 states have call predecessors, (6), 5 states have call successors, (6) [2023-11-29 07:05:37,967 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 07:05:37,967 INFO L93 Difference]: Finished difference Result 2863 states and 3564 transitions. [2023-11-29 07:05:37,967 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2023-11-29 07:05:37,968 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 10.25) internal successors, (164), 17 states have internal predecessors, (164), 5 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 5 states have call predecessors, (6), 5 states have call successors, (6) Word has length 133 [2023-11-29 07:05:37,968 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 07:05:37,969 INFO L225 Difference]: With dead ends: 2863 [2023-11-29 07:05:37,969 INFO L226 Difference]: Without dead ends: 2862 [2023-11-29 07:05:37,970 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 281 GetRequests, 246 SyntacticMatches, 3 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 213 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=222, Invalid=900, Unknown=0, NotChecked=0, Total=1122 [2023-11-29 07:05:37,970 INFO L413 NwaCegarLoop]: 62 mSDtfsCounter, 284 mSDsluCounter, 380 mSDsCounter, 0 mSdLazyCounter, 817 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 285 SdHoareTripleChecker+Valid, 442 SdHoareTripleChecker+Invalid, 834 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 817 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-29 07:05:37,970 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [285 Valid, 442 Invalid, 834 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 817 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-29 07:05:37,972 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2862 states. [2023-11-29 07:05:38,250 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2862 to 2854. [2023-11-29 07:05:38,252 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2854 states, 2750 states have (on average 1.2356363636363636) internal successors, (3398), 2772 states have internal predecessors, (3398), 79 states have call successors, (79), 2 states have call predecessors, (79), 2 states have return successors, (79), 79 states have call predecessors, (79), 79 states have call successors, (79) [2023-11-29 07:05:38,255 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2854 states to 2854 states and 3556 transitions. [2023-11-29 07:05:38,255 INFO L78 Accepts]: Start accepts. Automaton has 2854 states and 3556 transitions. Word has length 133 [2023-11-29 07:05:38,255 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 07:05:38,255 INFO L495 AbstractCegarLoop]: Abstraction has 2854 states and 3556 transitions. [2023-11-29 07:05:38,255 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 10.25) internal successors, (164), 17 states have internal predecessors, (164), 5 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 5 states have call predecessors, (6), 5 states have call successors, (6) [2023-11-29 07:05:38,255 INFO L276 IsEmpty]: Start isEmpty. Operand 2854 states and 3556 transitions. [2023-11-29 07:05:38,256 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2023-11-29 07:05:38,256 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 07:05:38,256 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 07:05:38,261 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2c6dc8-a580-46e1-b422-81b2f1468bab/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (74)] Forceful destruction successful, exit code 0 [2023-11-29 07:05:38,457 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable77,74 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2c6dc8-a580-46e1-b422-81b2f1468bab/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 07:05:38,457 INFO L420 AbstractCegarLoop]: === Iteration 79 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2023-11-29 07:05:38,457 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 07:05:38,457 INFO L85 PathProgramCache]: Analyzing trace with hash -1668941835, now seen corresponding path program 2 times [2023-11-29 07:05:38,457 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 07:05:38,458 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [394441826] [2023-11-29 07:05:38,458 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:05:38,458 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 07:05:38,466 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 07:05:38,466 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1042751462] [2023-11-29 07:05:38,466 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-29 07:05:38,466 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 07:05:38,466 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2c6dc8-a580-46e1-b422-81b2f1468bab/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 07:05:38,467 INFO L229 MonitoredProcess]: Starting monitored process 75 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2c6dc8-a580-46e1-b422-81b2f1468bab/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 07:05:38,468 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2c6dc8-a580-46e1-b422-81b2f1468bab/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (75)] Waiting until timeout for monitored process [2023-11-29 07:05:38,524 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-29 07:05:38,524 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 07:05:38,525 INFO L262 TraceCheckSpWp]: Trace formula consists of 228 conjuncts, 23 conjunts are in the unsatisfiable core [2023-11-29 07:05:38,527 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 07:05:38,823 INFO L134 CoverageAnalysis]: Checked inductivity of 142 backedges. 0 proven. 126 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2023-11-29 07:05:38,824 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 07:05:42,929 INFO L134 CoverageAnalysis]: Checked inductivity of 142 backedges. 0 proven. 126 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2023-11-29 07:05:42,929 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 07:05:42,929 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [394441826] [2023-11-29 07:05:42,929 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 07:05:42,929 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1042751462] [2023-11-29 07:05:42,929 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1042751462] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 07:05:42,929 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 07:05:42,930 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 10] total 20 [2023-11-29 07:05:42,930 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [772623812] [2023-11-29 07:05:42,930 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 07:05:42,930 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2023-11-29 07:05:42,930 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 07:05:42,931 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2023-11-29 07:05:42,931 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=87, Invalid=333, Unknown=0, NotChecked=0, Total=420 [2023-11-29 07:05:42,931 INFO L87 Difference]: Start difference. First operand 2854 states and 3556 transitions. Second operand has 21 states, 20 states have (on average 11.4) internal successors, (228), 21 states have internal predecessors, (228), 8 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 8 states have call predecessors, (10), 8 states have call successors, (10) [2023-11-29 07:06:18,491 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.26s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-29 07:06:46,586 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 07:06:46,586 INFO L93 Difference]: Finished difference Result 5476 states and 6914 transitions. [2023-11-29 07:06:46,586 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2023-11-29 07:06:46,587 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 20 states have (on average 11.4) internal successors, (228), 21 states have internal predecessors, (228), 8 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 8 states have call predecessors, (10), 8 states have call successors, (10) Word has length 136 [2023-11-29 07:06:46,587 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 07:06:46,591 INFO L225 Difference]: With dead ends: 5476 [2023-11-29 07:06:46,591 INFO L226 Difference]: Without dead ends: 5474 [2023-11-29 07:06:46,591 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 295 GetRequests, 251 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 500 ImplicationChecksByTransitivity, 9.2s TimeCoverageRelationStatistics Valid=550, Invalid=1520, Unknown=0, NotChecked=0, Total=2070 [2023-11-29 07:06:46,592 INFO L413 NwaCegarLoop]: 143 mSDtfsCounter, 2211 mSDsluCounter, 1334 mSDsCounter, 0 mSdLazyCounter, 2068 mSolverCounterSat, 54 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 57.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2211 SdHoareTripleChecker+Valid, 1477 SdHoareTripleChecker+Invalid, 2122 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 2068 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 57.5s IncrementalHoareTripleChecker+Time [2023-11-29 07:06:46,592 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2211 Valid, 1477 Invalid, 2122 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 2068 Invalid, 0 Unknown, 0 Unchecked, 57.5s Time] [2023-11-29 07:06:46,595 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5474 states. [2023-11-29 07:06:47,121 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5474 to 4781. [2023-11-29 07:06:47,124 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4781 states, 4613 states have (on average 1.243442445263386) internal successors, (5736), 4635 states have internal predecessors, (5736), 143 states have call successors, (143), 2 states have call predecessors, (143), 2 states have return successors, (143), 143 states have call predecessors, (143), 143 states have call successors, (143) [2023-11-29 07:06:47,129 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4781 states to 4781 states and 6022 transitions. [2023-11-29 07:06:47,129 INFO L78 Accepts]: Start accepts. Automaton has 4781 states and 6022 transitions. Word has length 136 [2023-11-29 07:06:47,129 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 07:06:47,129 INFO L495 AbstractCegarLoop]: Abstraction has 4781 states and 6022 transitions. [2023-11-29 07:06:47,129 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 20 states have (on average 11.4) internal successors, (228), 21 states have internal predecessors, (228), 8 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 8 states have call predecessors, (10), 8 states have call successors, (10) [2023-11-29 07:06:47,129 INFO L276 IsEmpty]: Start isEmpty. Operand 4781 states and 6022 transitions. [2023-11-29 07:06:47,130 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2023-11-29 07:06:47,130 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 07:06:47,130 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, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 07:06:47,135 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2c6dc8-a580-46e1-b422-81b2f1468bab/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (75)] Forceful destruction successful, exit code 0 [2023-11-29 07:06:47,330 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable78,75 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2c6dc8-a580-46e1-b422-81b2f1468bab/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 07:06:47,331 INFO L420 AbstractCegarLoop]: === Iteration 80 === Targeting ULTIMATE.startErr56ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2023-11-29 07:06:47,331 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 07:06:47,331 INFO L85 PathProgramCache]: Analyzing trace with hash -803558943, now seen corresponding path program 1 times [2023-11-29 07:06:47,331 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 07:06:47,331 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [716323841] [2023-11-29 07:06:47,331 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:06:47,331 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 07:06:47,338 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 07:06:47,338 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [164486224] [2023-11-29 07:06:47,338 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:06:47,338 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 07:06:47,339 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2c6dc8-a580-46e1-b422-81b2f1468bab/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 07:06:47,339 INFO L229 MonitoredProcess]: Starting monitored process 76 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2c6dc8-a580-46e1-b422-81b2f1468bab/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 07:06:47,340 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2c6dc8-a580-46e1-b422-81b2f1468bab/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (76)] Waiting until timeout for monitored process [2023-11-29 07:06:47,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:06:47,398 INFO L262 TraceCheckSpWp]: Trace formula consists of 219 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-29 07:06:47,400 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 07:06:47,537 INFO L134 CoverageAnalysis]: Checked inductivity of 91 backedges. 75 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2023-11-29 07:06:47,537 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 07:06:47,537 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 07:06:47,537 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [716323841] [2023-11-29 07:06:47,537 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 07:06:47,537 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [164486224] [2023-11-29 07:06:47,537 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [164486224] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 07:06:47,537 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 07:06:47,537 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-29 07:06:47,538 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [112774803] [2023-11-29 07:06:47,538 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 07:06:47,538 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-29 07:06:47,538 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 07:06:47,538 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-29 07:06:47,538 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2023-11-29 07:06:47,538 INFO L87 Difference]: Start difference. First operand 4781 states and 6022 transitions. Second operand has 8 states, 7 states have (on average 16.714285714285715) internal successors, (117), 8 states have internal predecessors, (117), 4 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 4 states have call predecessors, (5), 4 states have call successors, (5) [2023-11-29 07:06:48,309 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 07:06:48,309 INFO L93 Difference]: Finished difference Result 4844 states and 6074 transitions. [2023-11-29 07:06:48,309 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-29 07:06:48,309 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 16.714285714285715) internal successors, (117), 8 states have internal predecessors, (117), 4 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 4 states have call predecessors, (5), 4 states have call successors, (5) Word has length 136 [2023-11-29 07:06:48,310 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 07:06:48,313 INFO L225 Difference]: With dead ends: 4844 [2023-11-29 07:06:48,313 INFO L226 Difference]: Without dead ends: 4843 [2023-11-29 07:06:48,314 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 138 GetRequests, 129 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2023-11-29 07:06:48,314 INFO L413 NwaCegarLoop]: 134 mSDtfsCounter, 192 mSDsluCounter, 295 mSDsCounter, 0 mSdLazyCounter, 251 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 193 SdHoareTripleChecker+Valid, 429 SdHoareTripleChecker+Invalid, 252 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 251 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-29 07:06:48,314 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [193 Valid, 429 Invalid, 252 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 251 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-29 07:06:48,317 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4843 states. [2023-11-29 07:06:48,826 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4843 to 4499. [2023-11-29 07:06:48,828 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4499 states, 4340 states have (on average 1.2426267281105992) internal successors, (5393), 4362 states have internal predecessors, (5393), 134 states have call successors, (134), 2 states have call predecessors, (134), 2 states have return successors, (134), 134 states have call predecessors, (134), 134 states have call successors, (134) [2023-11-29 07:06:48,833 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4499 states to 4499 states and 5661 transitions. [2023-11-29 07:06:48,833 INFO L78 Accepts]: Start accepts. Automaton has 4499 states and 5661 transitions. Word has length 136 [2023-11-29 07:06:48,833 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 07:06:48,834 INFO L495 AbstractCegarLoop]: Abstraction has 4499 states and 5661 transitions. [2023-11-29 07:06:48,834 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 16.714285714285715) internal successors, (117), 8 states have internal predecessors, (117), 4 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 4 states have call predecessors, (5), 4 states have call successors, (5) [2023-11-29 07:06:48,834 INFO L276 IsEmpty]: Start isEmpty. Operand 4499 states and 5661 transitions. [2023-11-29 07:06:48,834 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2023-11-29 07:06:48,834 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 07:06:48,835 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, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 07:06:48,839 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2c6dc8-a580-46e1-b422-81b2f1468bab/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (76)] Forceful destruction successful, exit code 0 [2023-11-29 07:06:49,035 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable79,76 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2c6dc8-a580-46e1-b422-81b2f1468bab/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 07:06:49,035 INFO L420 AbstractCegarLoop]: === Iteration 81 === Targeting ULTIMATE.startErr57ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2023-11-29 07:06:49,036 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 07:06:49,036 INFO L85 PathProgramCache]: Analyzing trace with hash 859476719, now seen corresponding path program 1 times [2023-11-29 07:06:49,036 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 07:06:49,036 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1258985515] [2023-11-29 07:06:49,036 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:06:49,036 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 07:06:49,047 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 07:06:49,047 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1860727782] [2023-11-29 07:06:49,047 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:06:49,047 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 07:06:49,047 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2c6dc8-a580-46e1-b422-81b2f1468bab/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 07:06:49,049 INFO L229 MonitoredProcess]: Starting monitored process 77 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2c6dc8-a580-46e1-b422-81b2f1468bab/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 07:06:49,050 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2c6dc8-a580-46e1-b422-81b2f1468bab/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (77)] Waiting until timeout for monitored process [2023-11-29 07:06:49,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:06:49,134 INFO L262 TraceCheckSpWp]: Trace formula consists of 220 conjuncts, 30 conjunts are in the unsatisfiable core [2023-11-29 07:06:49,135 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 07:06:49,851 INFO L134 CoverageAnalysis]: Checked inductivity of 91 backedges. 6 proven. 75 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-11-29 07:06:49,851 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 07:06:50,439 INFO L134 CoverageAnalysis]: Checked inductivity of 91 backedges. 6 proven. 75 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-11-29 07:06:50,439 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 07:06:50,439 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1258985515] [2023-11-29 07:06:50,440 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 07:06:50,440 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1860727782] [2023-11-29 07:06:50,440 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1860727782] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 07:06:50,440 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 07:06:50,440 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17] total 32 [2023-11-29 07:06:50,440 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2062778589] [2023-11-29 07:06:50,440 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 07:06:50,441 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 33 states [2023-11-29 07:06:50,441 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 07:06:50,441 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2023-11-29 07:06:50,441 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=136, Invalid=920, Unknown=0, NotChecked=0, Total=1056 [2023-11-29 07:06:50,442 INFO L87 Difference]: Start difference. First operand 4499 states and 5661 transitions. Second operand has 33 states, 32 states have (on average 7.1875) internal successors, (230), 33 states have internal predecessors, (230), 7 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 7 states have call predecessors, (8), 7 states have call successors, (8) [2023-11-29 07:06:58,109 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 07:06:58,109 INFO L93 Difference]: Finished difference Result 4815 states and 6014 transitions. [2023-11-29 07:06:58,109 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 68 states. [2023-11-29 07:06:58,109 INFO L78 Accepts]: Start accepts. Automaton has has 33 states, 32 states have (on average 7.1875) internal successors, (230), 33 states have internal predecessors, (230), 7 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 7 states have call predecessors, (8), 7 states have call successors, (8) Word has length 137 [2023-11-29 07:06:58,110 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 07:06:58,113 INFO L225 Difference]: With dead ends: 4815 [2023-11-29 07:06:58,113 INFO L226 Difference]: Without dead ends: 4778 [2023-11-29 07:06:58,115 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 329 GetRequests, 241 SyntacticMatches, 0 SemanticMatches, 88 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2090 ImplicationChecksByTransitivity, 3.4s TimeCoverageRelationStatistics Valid=1336, Invalid=6674, Unknown=0, NotChecked=0, Total=8010 [2023-11-29 07:06:58,115 INFO L413 NwaCegarLoop]: 36 mSDtfsCounter, 1324 mSDsluCounter, 726 mSDsCounter, 0 mSdLazyCounter, 3820 mSolverCounterSat, 70 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1325 SdHoareTripleChecker+Valid, 762 SdHoareTripleChecker+Invalid, 3890 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 70 IncrementalHoareTripleChecker+Valid, 3820 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time [2023-11-29 07:06:58,115 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1325 Valid, 762 Invalid, 3890 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [70 Valid, 3820 Invalid, 0 Unknown, 0 Unchecked, 4.2s Time] [2023-11-29 07:06:58,117 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4778 states. [2023-11-29 07:06:58,650 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4778 to 4674. [2023-11-29 07:06:58,653 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4674 states, 4511 states have (on average 1.2445134116603858) internal successors, (5614), 4533 states have internal predecessors, (5614), 138 states have call successors, (138), 2 states have call predecessors, (138), 2 states have return successors, (138), 138 states have call predecessors, (138), 138 states have call successors, (138) [2023-11-29 07:06:58,658 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4674 states to 4674 states and 5890 transitions. [2023-11-29 07:06:58,658 INFO L78 Accepts]: Start accepts. Automaton has 4674 states and 5890 transitions. Word has length 137 [2023-11-29 07:06:58,658 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 07:06:58,659 INFO L495 AbstractCegarLoop]: Abstraction has 4674 states and 5890 transitions. [2023-11-29 07:06:58,659 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 33 states, 32 states have (on average 7.1875) internal successors, (230), 33 states have internal predecessors, (230), 7 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 7 states have call predecessors, (8), 7 states have call successors, (8) [2023-11-29 07:06:58,659 INFO L276 IsEmpty]: Start isEmpty. Operand 4674 states and 5890 transitions. [2023-11-29 07:06:58,659 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2023-11-29 07:06:58,659 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 07:06:58,660 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 07:06:58,664 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2c6dc8-a580-46e1-b422-81b2f1468bab/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (77)] Ended with exit code 0 [2023-11-29 07:06:58,860 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable80,77 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2c6dc8-a580-46e1-b422-81b2f1468bab/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 07:06:58,860 INFO L420 AbstractCegarLoop]: === Iteration 82 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2023-11-29 07:06:58,860 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 07:06:58,860 INFO L85 PathProgramCache]: Analyzing trace with hash 594040203, now seen corresponding path program 2 times [2023-11-29 07:06:58,861 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 07:06:58,861 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1414291367] [2023-11-29 07:06:58,861 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:06:58,861 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 07:06:58,868 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 07:06:58,868 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1073448131] [2023-11-29 07:06:58,868 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-29 07:06:58,869 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 07:06:58,869 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2c6dc8-a580-46e1-b422-81b2f1468bab/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 07:06:58,869 INFO L229 MonitoredProcess]: Starting monitored process 78 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2c6dc8-a580-46e1-b422-81b2f1468bab/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 07:06:58,870 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2c6dc8-a580-46e1-b422-81b2f1468bab/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (78)] Waiting until timeout for monitored process [2023-11-29 07:06:58,928 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-29 07:06:58,928 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 07:06:58,930 INFO L262 TraceCheckSpWp]: Trace formula consists of 228 conjuncts, 12 conjunts are in the unsatisfiable core [2023-11-29 07:06:58,931 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 07:06:59,446 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 8 proven. 126 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2023-11-29 07:06:59,446 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 07:06:59,921 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 07:06:59,921 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1414291367] [2023-11-29 07:06:59,921 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 07:06:59,921 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1073448131] [2023-11-29 07:06:59,921 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1073448131] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 07:06:59,921 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 07:06:59,921 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2023-11-29 07:06:59,921 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2052114189] [2023-11-29 07:06:59,921 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 07:06:59,922 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-11-29 07:06:59,922 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 07:06:59,922 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-11-29 07:06:59,922 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=225, Unknown=0, NotChecked=0, Total=272 [2023-11-29 07:06:59,922 INFO L87 Difference]: Start difference. First operand 4674 states and 5890 transitions. Second operand has 11 states, 10 states have (on average 12.1) internal successors, (121), 11 states have internal predecessors, (121), 4 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 4 states have call predecessors, (5), 4 states have call successors, (5) [2023-11-29 07:07:02,653 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 07:07:02,654 INFO L93 Difference]: Finished difference Result 5218 states and 6577 transitions. [2023-11-29 07:07:02,654 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-11-29 07:07:02,654 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 12.1) internal successors, (121), 11 states have internal predecessors, (121), 4 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 4 states have call predecessors, (5), 4 states have call successors, (5) Word has length 140 [2023-11-29 07:07:02,655 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 07:07:02,659 INFO L225 Difference]: With dead ends: 5218 [2023-11-29 07:07:02,659 INFO L226 Difference]: Without dead ends: 5217 [2023-11-29 07:07:02,660 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 178 GetRequests, 155 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=147, Invalid=453, Unknown=0, NotChecked=0, Total=600 [2023-11-29 07:07:02,661 INFO L413 NwaCegarLoop]: 120 mSDtfsCounter, 167 mSDsluCounter, 454 mSDsCounter, 0 mSdLazyCounter, 1265 mSolverCounterSat, 5 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 167 SdHoareTripleChecker+Valid, 574 SdHoareTripleChecker+Invalid, 1272 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 1265 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2023-11-29 07:07:02,661 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [167 Valid, 574 Invalid, 1272 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 1265 Invalid, 2 Unknown, 0 Unchecked, 1.7s Time] [2023-11-29 07:07:02,665 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5217 states. [2023-11-29 07:07:03,279 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5217 to 5080. [2023-11-29 07:07:03,280 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5080 states, 4904 states have (on average 1.2434747145187601) internal successors, (6098), 4926 states have internal predecessors, (6098), 151 states have call successors, (151), 2 states have call predecessors, (151), 2 states have return successors, (151), 151 states have call predecessors, (151), 151 states have call successors, (151) [2023-11-29 07:07:03,286 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5080 states to 5080 states and 6400 transitions. [2023-11-29 07:07:03,286 INFO L78 Accepts]: Start accepts. Automaton has 5080 states and 6400 transitions. Word has length 140 [2023-11-29 07:07:03,287 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 07:07:03,287 INFO L495 AbstractCegarLoop]: Abstraction has 5080 states and 6400 transitions. [2023-11-29 07:07:03,287 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 12.1) internal successors, (121), 11 states have internal predecessors, (121), 4 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 4 states have call predecessors, (5), 4 states have call successors, (5) [2023-11-29 07:07:03,287 INFO L276 IsEmpty]: Start isEmpty. Operand 5080 states and 6400 transitions. [2023-11-29 07:07:03,288 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2023-11-29 07:07:03,288 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 07:07:03,288 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 07:07:03,292 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2c6dc8-a580-46e1-b422-81b2f1468bab/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (78)] Ended with exit code 0 [2023-11-29 07:07:03,488 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 78 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2c6dc8-a580-46e1-b422-81b2f1468bab/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable81 [2023-11-29 07:07:03,488 INFO L420 AbstractCegarLoop]: === Iteration 83 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2023-11-29 07:07:03,488 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 07:07:03,488 INFO L85 PathProgramCache]: Analyzing trace with hash 1235377195, now seen corresponding path program 2 times [2023-11-29 07:07:03,489 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 07:07:03,489 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [464403479] [2023-11-29 07:07:03,489 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:07:03,489 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 07:07:03,495 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 07:07:03,495 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [584315914] [2023-11-29 07:07:03,495 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-29 07:07:03,495 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 07:07:03,495 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2c6dc8-a580-46e1-b422-81b2f1468bab/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 07:07:03,496 INFO L229 MonitoredProcess]: Starting monitored process 79 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2c6dc8-a580-46e1-b422-81b2f1468bab/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 07:07:03,497 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2c6dc8-a580-46e1-b422-81b2f1468bab/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (79)] Waiting until timeout for monitored process [2023-11-29 07:07:03,555 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-29 07:07:03,556 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 07:07:03,557 INFO L262 TraceCheckSpWp]: Trace formula consists of 229 conjuncts, 13 conjunts are in the unsatisfiable core [2023-11-29 07:07:03,559 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 07:07:04,137 INFO L134 CoverageAnalysis]: Checked inductivity of 153 backedges. 0 proven. 137 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2023-11-29 07:07:04,137 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 07:07:04,977 INFO L134 CoverageAnalysis]: Checked inductivity of 153 backedges. 0 proven. 137 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2023-11-29 07:07:04,977 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 07:07:04,978 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [464403479] [2023-11-29 07:07:04,978 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 07:07:04,978 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [584315914] [2023-11-29 07:07:04,978 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [584315914] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 07:07:04,978 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 07:07:04,978 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12] total 23 [2023-11-29 07:07:04,978 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [498725123] [2023-11-29 07:07:04,978 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 07:07:04,978 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2023-11-29 07:07:04,978 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 07:07:04,979 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2023-11-29 07:07:04,979 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=122, Invalid=430, Unknown=0, NotChecked=0, Total=552 [2023-11-29 07:07:04,979 INFO L87 Difference]: Start difference. First operand 5080 states and 6400 transitions. Second operand has 24 states, 23 states have (on average 10.130434782608695) internal successors, (233), 24 states have internal predecessors, (233), 7 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 7 states have call predecessors, (8), 7 states have call successors, (8) [2023-11-29 07:07:09,260 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 07:07:09,260 INFO L93 Difference]: Finished difference Result 6918 states and 8702 transitions. [2023-11-29 07:07:09,261 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 59 states. [2023-11-29 07:07:09,261 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 23 states have (on average 10.130434782608695) internal successors, (233), 24 states have internal predecessors, (233), 7 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 7 states have call predecessors, (8), 7 states have call successors, (8) Word has length 141 [2023-11-29 07:07:09,261 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 07:07:09,266 INFO L225 Difference]: With dead ends: 6918 [2023-11-29 07:07:09,266 INFO L226 Difference]: Without dead ends: 6916 [2023-11-29 07:07:09,267 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 328 GetRequests, 258 SyntacticMatches, 0 SemanticMatches, 70 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1290 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=1147, Invalid=3965, Unknown=0, NotChecked=0, Total=5112 [2023-11-29 07:07:09,267 INFO L413 NwaCegarLoop]: 106 mSDtfsCounter, 718 mSDsluCounter, 870 mSDsCounter, 0 mSdLazyCounter, 2302 mSolverCounterSat, 60 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 719 SdHoareTripleChecker+Valid, 976 SdHoareTripleChecker+Invalid, 2362 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 2302 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2023-11-29 07:07:09,268 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [719 Valid, 976 Invalid, 2362 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 2302 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2023-11-29 07:07:09,271 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6916 states. [2023-11-29 07:07:10,051 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6916 to 5906. [2023-11-29 07:07:10,054 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5906 states, 5703 states have (on average 1.2432053305277924) internal successors, (7090), 5725 states have internal predecessors, (7090), 178 states have call successors, (178), 2 states have call predecessors, (178), 2 states have return successors, (178), 178 states have call predecessors, (178), 178 states have call successors, (178) [2023-11-29 07:07:10,063 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5906 states to 5906 states and 7446 transitions. [2023-11-29 07:07:10,064 INFO L78 Accepts]: Start accepts. Automaton has 5906 states and 7446 transitions. Word has length 141 [2023-11-29 07:07:10,064 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 07:07:10,064 INFO L495 AbstractCegarLoop]: Abstraction has 5906 states and 7446 transitions. [2023-11-29 07:07:10,064 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 23 states have (on average 10.130434782608695) internal successors, (233), 24 states have internal predecessors, (233), 7 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 7 states have call predecessors, (8), 7 states have call successors, (8) [2023-11-29 07:07:10,064 INFO L276 IsEmpty]: Start isEmpty. Operand 5906 states and 7446 transitions. [2023-11-29 07:07:10,066 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2023-11-29 07:07:10,066 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 07:07:10,066 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 07:07:10,071 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2c6dc8-a580-46e1-b422-81b2f1468bab/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (79)] Ended with exit code 0 [2023-11-29 07:07:10,267 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable82,79 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2c6dc8-a580-46e1-b422-81b2f1468bab/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 07:07:10,267 INFO L420 AbstractCegarLoop]: === Iteration 84 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2023-11-29 07:07:10,267 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 07:07:10,267 INFO L85 PathProgramCache]: Analyzing trace with hash -16095747, now seen corresponding path program 3 times [2023-11-29 07:07:10,267 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 07:07:10,267 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [325261508] [2023-11-29 07:07:10,268 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:07:10,268 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 07:07:10,277 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 07:07:10,278 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1743475436] [2023-11-29 07:07:10,278 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-11-29 07:07:10,278 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 07:07:10,278 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2c6dc8-a580-46e1-b422-81b2f1468bab/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 07:07:10,279 INFO L229 MonitoredProcess]: Starting monitored process 80 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2c6dc8-a580-46e1-b422-81b2f1468bab/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 07:07:10,279 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2c6dc8-a580-46e1-b422-81b2f1468bab/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (80)] Waiting until timeout for monitored process [2023-11-29 07:07:11,624 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2023-11-29 07:07:11,624 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 07:07:11,626 INFO L262 TraceCheckSpWp]: Trace formula consists of 128 conjuncts, 38 conjunts are in the unsatisfiable core [2023-11-29 07:07:11,628 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 07:07:18,526 INFO L134 CoverageAnalysis]: Checked inductivity of 166 backedges. 103 proven. 14 refuted. 0 times theorem prover too weak. 49 trivial. 0 not checked. [2023-11-29 07:07:18,526 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 07:07:21,338 INFO L134 CoverageAnalysis]: Checked inductivity of 166 backedges. 103 proven. 14 refuted. 0 times theorem prover too weak. 49 trivial. 0 not checked. [2023-11-29 07:07:21,338 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 07:07:21,339 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [325261508] [2023-11-29 07:07:21,339 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 07:07:21,339 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1743475436] [2023-11-29 07:07:21,339 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1743475436] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 07:07:21,339 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 07:07:21,339 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21, 17] total 36 [2023-11-29 07:07:21,339 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [572872847] [2023-11-29 07:07:21,339 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 07:07:21,339 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 37 states [2023-11-29 07:07:21,339 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 07:07:21,340 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 37 interpolants. [2023-11-29 07:07:21,340 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=160, Invalid=1172, Unknown=0, NotChecked=0, Total=1332 [2023-11-29 07:07:21,340 INFO L87 Difference]: Start difference. First operand 5906 states and 7446 transitions. Second operand has 37 states, 36 states have (on average 5.083333333333333) internal successors, (183), 35 states have internal predecessors, (183), 5 states have call successors, (7), 1 states have call predecessors, (7), 3 states have return successors, (8), 5 states have call predecessors, (8), 5 states have call successors, (8) [2023-11-29 07:07:29,424 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.23s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 07:07:33,355 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.08s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 07:07:36,320 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.25s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 07:07:41,013 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.32s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 07:08:02,784 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.09s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 07:08:19,660 WARN L293 SmtUtils]: Spent 16.06s on a formula simplification. DAG size of input: 89 DAG size of output: 88 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-11-29 07:09:22,636 WARN L293 SmtUtils]: Spent 43.80s on a formula simplification. DAG size of input: 88 DAG size of output: 88 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-11-29 07:09:24,497 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.85s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 07:09:25,085 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 07:09:25,085 INFO L93 Difference]: Finished difference Result 5906 states and 7446 transitions. [2023-11-29 07:09:25,085 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2023-11-29 07:09:25,086 INFO L78 Accepts]: Start accepts. Automaton has has 37 states, 36 states have (on average 5.083333333333333) internal successors, (183), 35 states have internal predecessors, (183), 5 states have call successors, (7), 1 states have call predecessors, (7), 3 states have return successors, (8), 5 states have call predecessors, (8), 5 states have call successors, (8) Word has length 144 [2023-11-29 07:09:25,086 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 07:09:25,091 INFO L225 Difference]: With dead ends: 5906 [2023-11-29 07:09:25,091 INFO L226 Difference]: Without dead ends: 5900 [2023-11-29 07:09:25,092 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 322 GetRequests, 255 SyntacticMatches, 1 SemanticMatches, 66 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 932 ImplicationChecksByTransitivity, 105.7s TimeCoverageRelationStatistics Valid=985, Invalid=3568, Unknown=3, NotChecked=0, Total=4556 [2023-11-29 07:09:25,092 INFO L413 NwaCegarLoop]: 13 mSDtfsCounter, 924 mSDsluCounter, 162 mSDsCounter, 0 mSdLazyCounter, 945 mSolverCounterSat, 77 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 21.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 924 SdHoareTripleChecker+Valid, 175 SdHoareTripleChecker+Invalid, 1022 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 77 IncrementalHoareTripleChecker+Valid, 945 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 21.7s IncrementalHoareTripleChecker+Time [2023-11-29 07:09:25,093 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [924 Valid, 175 Invalid, 1022 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [77 Valid, 945 Invalid, 0 Unknown, 0 Unchecked, 21.7s Time] [2023-11-29 07:09:25,098 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5900 states. [2023-11-29 07:09:26,075 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5900 to 5187. [2023-11-29 07:09:26,078 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5187 states, 5011 states have (on average 1.1484733586110556) internal successors, (5755), 5027 states have internal predecessors, (5755), 157 states have call successors, (157), 2 states have call predecessors, (157), 2 states have return successors, (157), 157 states have call predecessors, (157), 157 states have call successors, (157) [2023-11-29 07:09:26,085 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5187 states to 5187 states and 6069 transitions. [2023-11-29 07:09:26,085 INFO L78 Accepts]: Start accepts. Automaton has 5187 states and 6069 transitions. Word has length 144 [2023-11-29 07:09:26,085 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 07:09:26,085 INFO L495 AbstractCegarLoop]: Abstraction has 5187 states and 6069 transitions. [2023-11-29 07:09:26,085 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 37 states, 36 states have (on average 5.083333333333333) internal successors, (183), 35 states have internal predecessors, (183), 5 states have call successors, (7), 1 states have call predecessors, (7), 3 states have return successors, (8), 5 states have call predecessors, (8), 5 states have call successors, (8) [2023-11-29 07:09:26,086 INFO L276 IsEmpty]: Start isEmpty. Operand 5187 states and 6069 transitions. [2023-11-29 07:09:26,086 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2023-11-29 07:09:26,086 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 07:09:26,087 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 07:09:26,093 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2c6dc8-a580-46e1-b422-81b2f1468bab/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (80)] Forceful destruction successful, exit code 0 [2023-11-29 07:09:26,287 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable83,80 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2c6dc8-a580-46e1-b422-81b2f1468bab/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 07:09:26,287 INFO L420 AbstractCegarLoop]: === Iteration 85 === Targeting ULTIMATE.startErr37ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2023-11-29 07:09:26,287 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 07:09:26,288 INFO L85 PathProgramCache]: Analyzing trace with hash 793111360, now seen corresponding path program 2 times [2023-11-29 07:09:26,288 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 07:09:26,288 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [121469739] [2023-11-29 07:09:26,288 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:09:26,288 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 07:09:26,296 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 07:09:26,296 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1101752861] [2023-11-29 07:09:26,296 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-29 07:09:26,297 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 07:09:26,297 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2c6dc8-a580-46e1-b422-81b2f1468bab/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 07:09:26,298 INFO L229 MonitoredProcess]: Starting monitored process 81 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2c6dc8-a580-46e1-b422-81b2f1468bab/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 07:09:26,299 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2c6dc8-a580-46e1-b422-81b2f1468bab/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (81)] Waiting until timeout for monitored process [2023-11-29 07:09:26,380 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-29 07:09:26,380 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 07:09:26,381 INFO L262 TraceCheckSpWp]: Trace formula consists of 234 conjuncts, 13 conjunts are in the unsatisfiable core [2023-11-29 07:09:26,383 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 07:09:26,923 INFO L134 CoverageAnalysis]: Checked inductivity of 170 backedges. 0 proven. 142 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2023-11-29 07:09:26,923 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 07:09:27,647 INFO L134 CoverageAnalysis]: Checked inductivity of 170 backedges. 0 proven. 142 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2023-11-29 07:09:27,647 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 07:09:27,647 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [121469739] [2023-11-29 07:09:27,647 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 07:09:27,647 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1101752861] [2023-11-29 07:09:27,647 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1101752861] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 07:09:27,647 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 07:09:27,647 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13] total 24 [2023-11-29 07:09:27,648 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [75075115] [2023-11-29 07:09:27,648 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 07:09:27,648 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2023-11-29 07:09:27,648 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 07:09:27,649 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2023-11-29 07:09:27,649 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=93, Invalid=459, Unknown=0, NotChecked=0, Total=552 [2023-11-29 07:09:27,649 INFO L87 Difference]: Start difference. First operand 5187 states and 6069 transitions. Second operand has 24 states, 24 states have (on average 9.625) internal successors, (231), 24 states have internal predecessors, (231), 9 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 9 states have call predecessors, (10), 9 states have call successors, (10) [2023-11-29 07:09:30,389 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 07:09:30,389 INFO L93 Difference]: Finished difference Result 5415 states and 6316 transitions. [2023-11-29 07:09:30,390 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2023-11-29 07:09:30,390 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 24 states have (on average 9.625) internal successors, (231), 24 states have internal predecessors, (231), 9 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 9 states have call predecessors, (10), 9 states have call successors, (10) Word has length 146 [2023-11-29 07:09:30,390 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 07:09:30,395 INFO L225 Difference]: With dead ends: 5415 [2023-11-29 07:09:30,396 INFO L226 Difference]: Without dead ends: 5327 [2023-11-29 07:09:30,397 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 321 GetRequests, 268 SyntacticMatches, 0 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 573 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=520, Invalid=2450, Unknown=0, NotChecked=0, Total=2970 [2023-11-29 07:09:30,397 INFO L413 NwaCegarLoop]: 99 mSDtfsCounter, 290 mSDsluCounter, 854 mSDsCounter, 0 mSdLazyCounter, 1823 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 290 SdHoareTripleChecker+Valid, 953 SdHoareTripleChecker+Invalid, 1852 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 1823 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2023-11-29 07:09:30,397 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [290 Valid, 953 Invalid, 1852 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 1823 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2023-11-29 07:09:30,400 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5327 states. [2023-11-29 07:09:31,393 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5327 to 5296. [2023-11-29 07:09:31,395 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5296 states, 5116 states have (on average 1.147185301016419) internal successors, (5869), 5132 states have internal predecessors, (5869), 161 states have call successors, (161), 2 states have call predecessors, (161), 2 states have return successors, (161), 161 states have call predecessors, (161), 161 states have call successors, (161) [2023-11-29 07:09:31,402 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5296 states to 5296 states and 6191 transitions. [2023-11-29 07:09:31,402 INFO L78 Accepts]: Start accepts. Automaton has 5296 states and 6191 transitions. Word has length 146 [2023-11-29 07:09:31,402 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 07:09:31,402 INFO L495 AbstractCegarLoop]: Abstraction has 5296 states and 6191 transitions. [2023-11-29 07:09:31,403 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 9.625) internal successors, (231), 24 states have internal predecessors, (231), 9 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 9 states have call predecessors, (10), 9 states have call successors, (10) [2023-11-29 07:09:31,403 INFO L276 IsEmpty]: Start isEmpty. Operand 5296 states and 6191 transitions. [2023-11-29 07:09:31,404 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2023-11-29 07:09:31,404 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 07:09:31,404 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 07:09:31,409 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2c6dc8-a580-46e1-b422-81b2f1468bab/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (81)] Forceful destruction successful, exit code 0 [2023-11-29 07:09:31,604 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable84,81 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2c6dc8-a580-46e1-b422-81b2f1468bab/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 07:09:31,605 INFO L420 AbstractCegarLoop]: === Iteration 86 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2023-11-29 07:09:31,605 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 07:09:31,605 INFO L85 PathProgramCache]: Analyzing trace with hash -498968071, now seen corresponding path program 2 times [2023-11-29 07:09:31,605 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 07:09:31,605 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1284988718] [2023-11-29 07:09:31,605 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:09:31,605 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 07:09:31,614 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 07:09:31,615 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1449263205] [2023-11-29 07:09:31,615 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-29 07:09:31,615 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 07:09:31,615 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2c6dc8-a580-46e1-b422-81b2f1468bab/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 07:09:31,616 INFO L229 MonitoredProcess]: Starting monitored process 82 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2c6dc8-a580-46e1-b422-81b2f1468bab/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 07:09:31,617 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2c6dc8-a580-46e1-b422-81b2f1468bab/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (82)] Waiting until timeout for monitored process [2023-11-29 07:09:31,693 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-29 07:09:31,694 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 07:09:31,696 INFO L262 TraceCheckSpWp]: Trace formula consists of 237 conjuncts, 50 conjunts are in the unsatisfiable core [2023-11-29 07:09:31,698 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 07:09:32,902 INFO L134 CoverageAnalysis]: Checked inductivity of 169 backedges. 3 proven. 156 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-11-29 07:09:32,902 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 07:09:35,644 INFO L134 CoverageAnalysis]: Checked inductivity of 169 backedges. 107 proven. 33 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2023-11-29 07:09:35,645 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 07:09:35,645 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1284988718] [2023-11-29 07:09:35,645 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 07:09:35,645 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1449263205] [2023-11-29 07:09:35,645 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1449263205] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 07:09:35,645 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 07:09:35,645 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 11] total 29 [2023-11-29 07:09:35,645 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1226404618] [2023-11-29 07:09:35,645 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 07:09:35,646 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2023-11-29 07:09:35,646 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 07:09:35,647 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2023-11-29 07:09:35,647 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=96, Invalid=774, Unknown=0, NotChecked=0, Total=870 [2023-11-29 07:09:35,647 INFO L87 Difference]: Start difference. First operand 5296 states and 6191 transitions. Second operand has 30 states, 29 states have (on average 7.896551724137931) internal successors, (229), 30 states have internal predecessors, (229), 6 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 5 states have call predecessors, (8), 6 states have call successors, (8) [2023-11-29 07:09:45,687 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 07:09:45,687 INFO L93 Difference]: Finished difference Result 5337 states and 6230 transitions. [2023-11-29 07:09:45,687 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2023-11-29 07:09:45,688 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 29 states have (on average 7.896551724137931) internal successors, (229), 30 states have internal predecessors, (229), 6 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 5 states have call predecessors, (8), 6 states have call successors, (8) Word has length 145 [2023-11-29 07:09:45,688 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 07:09:45,692 INFO L225 Difference]: With dead ends: 5337 [2023-11-29 07:09:45,692 INFO L226 Difference]: Without dead ends: 5334 [2023-11-29 07:09:45,692 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 324 GetRequests, 267 SyntacticMatches, 0 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 514 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=378, Invalid=3044, Unknown=0, NotChecked=0, Total=3422 [2023-11-29 07:09:45,693 INFO L413 NwaCegarLoop]: 25 mSDtfsCounter, 532 mSDsluCounter, 229 mSDsCounter, 0 mSdLazyCounter, 2646 mSolverCounterSat, 44 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 532 SdHoareTripleChecker+Valid, 254 SdHoareTripleChecker+Invalid, 2690 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 2646 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.3s IncrementalHoareTripleChecker+Time [2023-11-29 07:09:45,693 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [532 Valid, 254 Invalid, 2690 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 2646 Invalid, 0 Unknown, 0 Unchecked, 7.3s Time] [2023-11-29 07:09:45,695 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5334 states. [2023-11-29 07:09:46,584 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5334 to 5297. [2023-11-29 07:09:46,586 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5297 states, 5118 states have (on average 1.139116842516608) internal successors, (5830), 5133 states have internal predecessors, (5830), 161 states have call successors, (161), 2 states have call predecessors, (161), 2 states have return successors, (161), 161 states have call predecessors, (161), 161 states have call successors, (161) [2023-11-29 07:09:46,592 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5297 states to 5297 states and 6152 transitions. [2023-11-29 07:09:46,592 INFO L78 Accepts]: Start accepts. Automaton has 5297 states and 6152 transitions. Word has length 145 [2023-11-29 07:09:46,592 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 07:09:46,592 INFO L495 AbstractCegarLoop]: Abstraction has 5297 states and 6152 transitions. [2023-11-29 07:09:46,592 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 29 states have (on average 7.896551724137931) internal successors, (229), 30 states have internal predecessors, (229), 6 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 5 states have call predecessors, (8), 6 states have call successors, (8) [2023-11-29 07:09:46,592 INFO L276 IsEmpty]: Start isEmpty. Operand 5297 states and 6152 transitions. [2023-11-29 07:09:46,593 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2023-11-29 07:09:46,593 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 07:09:46,593 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 07:09:46,598 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2c6dc8-a580-46e1-b422-81b2f1468bab/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (82)] Ended with exit code 0 [2023-11-29 07:09:46,794 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable85,82 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2c6dc8-a580-46e1-b422-81b2f1468bab/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 07:09:46,794 INFO L420 AbstractCegarLoop]: === Iteration 87 === Targeting ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2023-11-29 07:09:46,794 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 07:09:46,794 INFO L85 PathProgramCache]: Analyzing trace with hash 1971518020, now seen corresponding path program 1 times [2023-11-29 07:09:46,794 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 07:09:46,795 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [160893732] [2023-11-29 07:09:46,795 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:09:46,795 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 07:09:46,803 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 07:09:46,803 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [36229039] [2023-11-29 07:09:46,803 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:09:46,803 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 07:09:46,804 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2c6dc8-a580-46e1-b422-81b2f1468bab/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 07:09:46,804 INFO L229 MonitoredProcess]: Starting monitored process 83 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2c6dc8-a580-46e1-b422-81b2f1468bab/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 07:09:46,805 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2c6dc8-a580-46e1-b422-81b2f1468bab/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (83)] Waiting until timeout for monitored process [2023-11-29 07:09:46,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:09:46,865 INFO L262 TraceCheckSpWp]: Trace formula consists of 236 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-29 07:09:46,867 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 07:09:47,521 INFO L134 CoverageAnalysis]: Checked inductivity of 179 backedges. 0 proven. 151 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2023-11-29 07:09:47,521 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 07:09:47,786 INFO L134 CoverageAnalysis]: Checked inductivity of 179 backedges. 0 proven. 151 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2023-11-29 07:09:47,786 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 07:09:47,786 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [160893732] [2023-11-29 07:09:47,786 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 07:09:47,787 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [36229039] [2023-11-29 07:09:47,787 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [36229039] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 07:09:47,787 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 07:09:47,787 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 13 [2023-11-29 07:09:47,787 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [46554379] [2023-11-29 07:09:47,787 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 07:09:47,788 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-11-29 07:09:47,788 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 07:09:47,789 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-11-29 07:09:47,789 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=128, Unknown=0, NotChecked=0, Total=182 [2023-11-29 07:09:47,789 INFO L87 Difference]: Start difference. First operand 5297 states and 6152 transitions. Second operand has 14 states, 13 states have (on average 18.615384615384617) internal successors, (242), 14 states have internal predecessors, (242), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2023-11-29 07:09:49,596 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 07:09:49,596 INFO L93 Difference]: Finished difference Result 5841 states and 6743 transitions. [2023-11-29 07:09:49,597 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-11-29 07:09:49,597 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 18.615384615384617) internal successors, (242), 14 states have internal predecessors, (242), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) Word has length 148 [2023-11-29 07:09:49,597 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 07:09:49,602 INFO L225 Difference]: With dead ends: 5841 [2023-11-29 07:09:49,602 INFO L226 Difference]: Without dead ends: 5840 [2023-11-29 07:09:49,603 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 303 GetRequests, 282 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 83 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=188, Invalid=318, Unknown=0, NotChecked=0, Total=506 [2023-11-29 07:09:49,603 INFO L413 NwaCegarLoop]: 67 mSDtfsCounter, 1052 mSDsluCounter, 442 mSDsCounter, 0 mSdLazyCounter, 781 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1053 SdHoareTripleChecker+Valid, 509 SdHoareTripleChecker+Invalid, 820 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 781 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-11-29 07:09:49,603 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1053 Valid, 509 Invalid, 820 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 781 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-11-29 07:09:49,606 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5840 states. [2023-11-29 07:09:50,615 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5840 to 4999. [2023-11-29 07:09:50,617 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4999 states, 4829 states have (on average 1.133153862083247) internal successors, (5472), 4844 states have internal predecessors, (5472), 152 states have call successors, (152), 2 states have call predecessors, (152), 2 states have return successors, (152), 152 states have call predecessors, (152), 152 states have call successors, (152) [2023-11-29 07:09:50,624 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4999 states to 4999 states and 5776 transitions. [2023-11-29 07:09:50,624 INFO L78 Accepts]: Start accepts. Automaton has 4999 states and 5776 transitions. Word has length 148 [2023-11-29 07:09:50,624 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 07:09:50,624 INFO L495 AbstractCegarLoop]: Abstraction has 4999 states and 5776 transitions. [2023-11-29 07:09:50,625 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 18.615384615384617) internal successors, (242), 14 states have internal predecessors, (242), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2023-11-29 07:09:50,625 INFO L276 IsEmpty]: Start isEmpty. Operand 4999 states and 5776 transitions. [2023-11-29 07:09:50,626 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2023-11-29 07:09:50,626 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 07:09:50,626 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 07:09:50,631 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2c6dc8-a580-46e1-b422-81b2f1468bab/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (83)] Forceful destruction successful, exit code 0 [2023-11-29 07:09:50,826 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable86,83 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2c6dc8-a580-46e1-b422-81b2f1468bab/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 07:09:50,826 INFO L420 AbstractCegarLoop]: === Iteration 88 === Targeting ULTIMATE.startErr37ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2023-11-29 07:09:50,827 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 07:09:50,827 INFO L85 PathProgramCache]: Analyzing trace with hash 171425038, now seen corresponding path program 3 times [2023-11-29 07:09:50,827 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 07:09:50,827 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1254109927] [2023-11-29 07:09:50,827 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:09:50,827 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 07:09:50,836 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 07:09:50,836 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1807759296] [2023-11-29 07:09:50,837 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-11-29 07:09:50,837 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 07:09:50,837 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2c6dc8-a580-46e1-b422-81b2f1468bab/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 07:09:50,838 INFO L229 MonitoredProcess]: Starting monitored process 84 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2c6dc8-a580-46e1-b422-81b2f1468bab/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 07:09:50,839 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2c6dc8-a580-46e1-b422-81b2f1468bab/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (84)] Waiting until timeout for monitored process [2023-11-29 07:09:50,973 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2023-11-29 07:09:50,973 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 07:09:50,974 INFO L262 TraceCheckSpWp]: Trace formula consists of 142 conjuncts, 27 conjunts are in the unsatisfiable core [2023-11-29 07:09:50,977 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 07:09:52,618 INFO L134 CoverageAnalysis]: Checked inductivity of 174 backedges. 85 proven. 3 refuted. 0 times theorem prover too weak. 86 trivial. 0 not checked. [2023-11-29 07:09:52,618 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 07:10:18,042 INFO L134 CoverageAnalysis]: Checked inductivity of 174 backedges. 88 proven. 0 refuted. 0 times theorem prover too weak. 86 trivial. 0 not checked. [2023-11-29 07:10:18,043 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 07:10:18,043 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1254109927] [2023-11-29 07:10:18,043 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 07:10:18,043 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1807759296] [2023-11-29 07:10:18,043 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1807759296] provided 1 perfect and 1 imperfect interpolant sequences [2023-11-29 07:10:18,043 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-29 07:10:18,043 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [17] total 29 [2023-11-29 07:10:18,043 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [838147890] [2023-11-29 07:10:18,043 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 07:10:18,044 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2023-11-29 07:10:18,044 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 07:10:18,044 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2023-11-29 07:10:18,044 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=147, Invalid=723, Unknown=0, NotChecked=0, Total=870 [2023-11-29 07:10:18,044 INFO L87 Difference]: Start difference. First operand 4999 states and 5776 transitions. Second operand has 15 states, 14 states have (on average 6.214285714285714) internal successors, (87), 14 states have internal predecessors, (87), 2 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-29 07:10:27,701 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [1] [2023-11-29 07:10:36,419 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [1] [2023-11-29 07:10:38,292 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.87s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [1] [2023-11-29 07:10:51,310 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [1] [2023-11-29 07:11:06,772 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.50s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [1] [2023-11-29 07:11:08,168 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.40s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [1] [2023-11-29 07:11:12,205 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [1] [2023-11-29 07:11:18,363 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [1] [2023-11-29 07:11:22,448 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [1] [2023-11-29 07:11:28,253 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [1] [2023-11-29 07:11:32,257 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [1] [2023-11-29 07:11:42,289 WARN L293 SmtUtils]: Spent 5.28s on a formula simplification that was a NOOP. DAG size: 52 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-11-29 07:11:43,922 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.31s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [1] [2023-11-29 07:11:48,165 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.53s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [1] [2023-11-29 07:11:50,834 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [1] [2023-11-29 07:11:55,873 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [1] [2023-11-29 07:12:15,848 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [1] [2023-11-29 07:12:29,420 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [1] [2023-11-29 07:12:32,537 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.42s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [1] [2023-11-29 07:12:34,439 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.69s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [1] [2023-11-29 07:12:57,249 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.13s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [1] [2023-11-29 07:12:59,775 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.19s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [1] [2023-11-29 07:13:04,265 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [1] [2023-11-29 07:13:06,577 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.02s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [1] [2023-11-29 07:13:08,089 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.51s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [1] [2023-11-29 07:13:13,385 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [1] [2023-11-29 07:13:21,956 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.01s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [1] [2023-11-29 07:13:27,376 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 07:13:27,376 INFO L93 Difference]: Finished difference Result 5014 states and 5791 transitions. [2023-11-29 07:13:27,377 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2023-11-29 07:13:27,377 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 6.214285714285714) internal successors, (87), 14 states have internal predecessors, (87), 2 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 150 [2023-11-29 07:13:27,377 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 07:13:27,383 INFO L225 Difference]: With dead ends: 5014 [2023-11-29 07:13:27,383 INFO L226 Difference]: Without dead ends: 5013 [2023-11-29 07:13:27,384 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 316 GetRequests, 275 SyntacticMatches, 0 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 475 ImplicationChecksByTransitivity, 84.9s TimeCoverageRelationStatistics Valid=342, Invalid=1459, Unknown=5, NotChecked=0, Total=1806 [2023-11-29 07:13:27,385 INFO L413 NwaCegarLoop]: 48 mSDtfsCounter, 435 mSDsluCounter, 274 mSDsCounter, 0 mSdLazyCounter, 678 mSolverCounterSat, 29 mSolverCounterUnsat, 13 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 112.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 435 SdHoareTripleChecker+Valid, 322 SdHoareTripleChecker+Invalid, 720 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 678 IncrementalHoareTripleChecker+Invalid, 13 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 112.5s IncrementalHoareTripleChecker+Time [2023-11-29 07:13:27,385 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [435 Valid, 322 Invalid, 720 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 678 Invalid, 13 Unknown, 0 Unchecked, 112.5s Time] [2023-11-29 07:13:27,389 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5013 states. [2023-11-29 07:13:28,473 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5013 to 5007. [2023-11-29 07:13:28,476 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5007 states, 4837 states have (on average 1.1314864585486872) internal successors, (5473), 4852 states have internal predecessors, (5473), 152 states have call successors, (152), 2 states have call predecessors, (152), 2 states have return successors, (152), 152 states have call predecessors, (152), 152 states have call successors, (152) [2023-11-29 07:13:28,483 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5007 states to 5007 states and 5777 transitions. [2023-11-29 07:13:28,483 INFO L78 Accepts]: Start accepts. Automaton has 5007 states and 5777 transitions. Word has length 150 [2023-11-29 07:13:28,483 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 07:13:28,483 INFO L495 AbstractCegarLoop]: Abstraction has 5007 states and 5777 transitions. [2023-11-29 07:13:28,483 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 6.214285714285714) internal successors, (87), 14 states have internal predecessors, (87), 2 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-29 07:13:28,483 INFO L276 IsEmpty]: Start isEmpty. Operand 5007 states and 5777 transitions. [2023-11-29 07:13:28,484 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2023-11-29 07:13:28,484 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 07:13:28,485 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 07:13:28,490 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2c6dc8-a580-46e1-b422-81b2f1468bab/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (84)] Forceful destruction successful, exit code 0 [2023-11-29 07:13:28,685 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 84 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2c6dc8-a580-46e1-b422-81b2f1468bab/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable87 [2023-11-29 07:13:28,685 INFO L420 AbstractCegarLoop]: === Iteration 89 === Targeting ULTIMATE.startErr37ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2023-11-29 07:13:28,685 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 07:13:28,686 INFO L85 PathProgramCache]: Analyzing trace with hash -185818446, now seen corresponding path program 4 times [2023-11-29 07:13:28,686 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 07:13:28,686 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1053062442] [2023-11-29 07:13:28,686 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:13:28,686 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 07:13:28,694 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 07:13:28,694 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1973099871] [2023-11-29 07:13:28,694 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2023-11-29 07:13:28,694 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 07:13:28,694 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2c6dc8-a580-46e1-b422-81b2f1468bab/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 07:13:28,695 INFO L229 MonitoredProcess]: Starting monitored process 85 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2c6dc8-a580-46e1-b422-81b2f1468bab/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 07:13:28,696 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2c6dc8-a580-46e1-b422-81b2f1468bab/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (85)] Waiting until timeout for monitored process [2023-11-29 07:13:28,762 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2023-11-29 07:13:28,762 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 07:13:28,763 INFO L262 TraceCheckSpWp]: Trace formula consists of 242 conjuncts, 15 conjunts are in the unsatisfiable core [2023-11-29 07:13:28,766 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 07:13:29,393 INFO L134 CoverageAnalysis]: Checked inductivity of 174 backedges. 0 proven. 146 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2023-11-29 07:13:29,393 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 07:13:30,274 INFO L134 CoverageAnalysis]: Checked inductivity of 174 backedges. 0 proven. 146 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2023-11-29 07:13:30,274 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 07:13:30,274 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1053062442] [2023-11-29 07:13:30,274 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 07:13:30,274 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1973099871] [2023-11-29 07:13:30,274 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1973099871] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 07:13:30,274 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 07:13:30,274 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13] total 24 [2023-11-29 07:13:30,275 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2060229961] [2023-11-29 07:13:30,275 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 07:13:30,275 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2023-11-29 07:13:30,275 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 07:13:30,276 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2023-11-29 07:13:30,276 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=86, Invalid=466, Unknown=0, NotChecked=0, Total=552 [2023-11-29 07:13:30,276 INFO L87 Difference]: Start difference. First operand 5007 states and 5777 transitions. Second operand has 24 states, 24 states have (on average 9.958333333333334) internal successors, (239), 24 states have internal predecessors, (239), 9 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 9 states have call predecessors, (10), 9 states have call successors, (10) [2023-11-29 07:13:34,205 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 07:13:34,205 INFO L93 Difference]: Finished difference Result 5076 states and 5843 transitions. [2023-11-29 07:13:34,205 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2023-11-29 07:13:34,206 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 24 states have (on average 9.958333333333334) internal successors, (239), 24 states have internal predecessors, (239), 9 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 9 states have call predecessors, (10), 9 states have call successors, (10) Word has length 150 [2023-11-29 07:13:34,206 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 07:13:34,209 INFO L225 Difference]: With dead ends: 5076 [2023-11-29 07:13:34,210 INFO L226 Difference]: Without dead ends: 5013 [2023-11-29 07:13:34,210 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 329 GetRequests, 276 SyntacticMatches, 0 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 580 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=503, Invalid=2467, Unknown=0, NotChecked=0, Total=2970 [2023-11-29 07:13:34,211 INFO L413 NwaCegarLoop]: 115 mSDtfsCounter, 242 mSDsluCounter, 944 mSDsCounter, 0 mSdLazyCounter, 2023 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 242 SdHoareTripleChecker+Valid, 1059 SdHoareTripleChecker+Invalid, 2062 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 2023 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2023-11-29 07:13:34,211 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [242 Valid, 1059 Invalid, 2062 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 2023 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2023-11-29 07:13:34,213 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5013 states. [2023-11-29 07:13:35,274 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5013 to 4989. [2023-11-29 07:13:35,277 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4989 states, 4819 states have (on average 1.1305250051877982) internal successors, (5448), 4834 states have internal predecessors, (5448), 152 states have call successors, (152), 2 states have call predecessors, (152), 2 states have return successors, (152), 152 states have call predecessors, (152), 152 states have call successors, (152) [2023-11-29 07:13:35,283 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4989 states to 4989 states and 5752 transitions. [2023-11-29 07:13:35,283 INFO L78 Accepts]: Start accepts. Automaton has 4989 states and 5752 transitions. Word has length 150 [2023-11-29 07:13:35,283 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 07:13:35,284 INFO L495 AbstractCegarLoop]: Abstraction has 4989 states and 5752 transitions. [2023-11-29 07:13:35,284 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 9.958333333333334) internal successors, (239), 24 states have internal predecessors, (239), 9 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 9 states have call predecessors, (10), 9 states have call successors, (10) [2023-11-29 07:13:35,284 INFO L276 IsEmpty]: Start isEmpty. Operand 4989 states and 5752 transitions. [2023-11-29 07:13:35,285 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2023-11-29 07:13:35,285 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 07:13:35,285 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 07:13:35,290 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2c6dc8-a580-46e1-b422-81b2f1468bab/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (85)] Ended with exit code 0 [2023-11-29 07:13:35,485 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 85 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2c6dc8-a580-46e1-b422-81b2f1468bab/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable88 [2023-11-29 07:13:35,486 INFO L420 AbstractCegarLoop]: === Iteration 90 === Targeting ULTIMATE.startErr31ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2023-11-29 07:13:35,486 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 07:13:35,486 INFO L85 PathProgramCache]: Analyzing trace with hash 396602129, now seen corresponding path program 1 times [2023-11-29 07:13:35,486 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 07:13:35,486 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1484639385] [2023-11-29 07:13:35,486 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:13:35,486 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 07:13:35,497 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 07:13:35,497 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1087679433] [2023-11-29 07:13:35,497 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:13:35,497 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 07:13:35,498 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2c6dc8-a580-46e1-b422-81b2f1468bab/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 07:13:35,499 INFO L229 MonitoredProcess]: Starting monitored process 86 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2c6dc8-a580-46e1-b422-81b2f1468bab/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 07:13:35,500 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2c6dc8-a580-46e1-b422-81b2f1468bab/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (86)] Waiting until timeout for monitored process [2023-11-29 07:13:35,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:13:35,566 INFO L262 TraceCheckSpWp]: Trace formula consists of 239 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-29 07:13:35,568 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 07:13:35,899 INFO L134 CoverageAnalysis]: Checked inductivity of 179 backedges. 6 proven. 145 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2023-11-29 07:13:35,900 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 07:13:36,570 INFO L134 CoverageAnalysis]: Checked inductivity of 179 backedges. 31 proven. 120 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2023-11-29 07:13:36,571 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 07:13:36,571 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1484639385] [2023-11-29 07:13:36,571 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 07:13:36,571 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1087679433] [2023-11-29 07:13:36,571 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1087679433] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 07:13:36,571 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 07:13:36,571 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 14 [2023-11-29 07:13:36,571 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [453435260] [2023-11-29 07:13:36,571 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 07:13:36,572 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-11-29 07:13:36,572 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 07:13:36,573 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-11-29 07:13:36,573 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=130, Unknown=0, NotChecked=0, Total=182 [2023-11-29 07:13:36,573 INFO L87 Difference]: Start difference. First operand 4989 states and 5752 transitions. Second operand has 14 states, 14 states have (on average 16.928571428571427) internal successors, (237), 14 states have internal predecessors, (237), 9 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 9 states have call predecessors, (10), 9 states have call successors, (10) [2023-11-29 07:13:38,894 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 07:13:38,894 INFO L93 Difference]: Finished difference Result 7420 states and 8592 transitions. [2023-11-29 07:13:38,895 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2023-11-29 07:13:38,895 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 16.928571428571427) internal successors, (237), 14 states have internal predecessors, (237), 9 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 9 states have call predecessors, (10), 9 states have call successors, (10) Word has length 151 [2023-11-29 07:13:38,895 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 07:13:38,901 INFO L225 Difference]: With dead ends: 7420 [2023-11-29 07:13:38,901 INFO L226 Difference]: Without dead ends: 6551 [2023-11-29 07:13:38,903 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 313 GetRequests, 288 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 126 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=204, Invalid=498, Unknown=0, NotChecked=0, Total=702 [2023-11-29 07:13:38,903 INFO L413 NwaCegarLoop]: 155 mSDtfsCounter, 400 mSDsluCounter, 688 mSDsCounter, 0 mSdLazyCounter, 1097 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 400 SdHoareTripleChecker+Valid, 843 SdHoareTripleChecker+Invalid, 1120 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 1097 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-11-29 07:13:38,903 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [400 Valid, 843 Invalid, 1120 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 1097 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-11-29 07:13:38,907 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6551 states. [2023-11-29 07:13:40,204 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6551 to 6326. [2023-11-29 07:13:40,206 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6326 states, 6112 states have (on average 1.131053664921466) internal successors, (6913), 6127 states have internal predecessors, (6913), 196 states have call successors, (196), 2 states have call predecessors, (196), 2 states have return successors, (196), 196 states have call predecessors, (196), 196 states have call successors, (196) [2023-11-29 07:13:40,215 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6326 states to 6326 states and 7305 transitions. [2023-11-29 07:13:40,215 INFO L78 Accepts]: Start accepts. Automaton has 6326 states and 7305 transitions. Word has length 151 [2023-11-29 07:13:40,215 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 07:13:40,215 INFO L495 AbstractCegarLoop]: Abstraction has 6326 states and 7305 transitions. [2023-11-29 07:13:40,215 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 16.928571428571427) internal successors, (237), 14 states have internal predecessors, (237), 9 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 9 states have call predecessors, (10), 9 states have call successors, (10) [2023-11-29 07:13:40,215 INFO L276 IsEmpty]: Start isEmpty. Operand 6326 states and 7305 transitions. [2023-11-29 07:13:40,217 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2023-11-29 07:13:40,217 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 07:13:40,217 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 07:13:40,222 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2c6dc8-a580-46e1-b422-81b2f1468bab/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (86)] Ended with exit code 0 [2023-11-29 07:13:40,417 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 86 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2c6dc8-a580-46e1-b422-81b2f1468bab/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable89 [2023-11-29 07:13:40,417 INFO L420 AbstractCegarLoop]: === Iteration 91 === Targeting ULTIMATE.startErr31ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2023-11-29 07:13:40,418 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 07:13:40,418 INFO L85 PathProgramCache]: Analyzing trace with hash 1873988099, now seen corresponding path program 2 times [2023-11-29 07:13:40,418 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 07:13:40,418 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2009315709] [2023-11-29 07:13:40,418 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:13:40,418 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 07:13:40,427 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 07:13:40,427 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [430877872] [2023-11-29 07:13:40,427 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-29 07:13:40,427 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 07:13:40,427 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2c6dc8-a580-46e1-b422-81b2f1468bab/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 07:13:40,428 INFO L229 MonitoredProcess]: Starting monitored process 87 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2c6dc8-a580-46e1-b422-81b2f1468bab/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 07:13:40,429 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2c6dc8-a580-46e1-b422-81b2f1468bab/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (87)] Waiting until timeout for monitored process [2023-11-29 07:13:40,529 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-29 07:13:40,530 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 07:13:40,531 INFO L262 TraceCheckSpWp]: Trace formula consists of 247 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-29 07:13:40,534 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 07:13:41,250 INFO L134 CoverageAnalysis]: Checked inductivity of 189 backedges. 0 proven. 161 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2023-11-29 07:13:41,250 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 07:13:41,742 INFO L134 CoverageAnalysis]: Checked inductivity of 189 backedges. 0 proven. 161 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2023-11-29 07:13:41,742 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 07:13:41,742 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2009315709] [2023-11-29 07:13:41,743 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 07:13:41,743 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [430877872] [2023-11-29 07:13:41,743 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [430877872] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 07:13:41,743 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 07:13:41,743 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 13 [2023-11-29 07:13:41,743 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1855927106] [2023-11-29 07:13:41,743 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 07:13:41,744 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-11-29 07:13:41,744 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 07:13:41,745 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-11-29 07:13:41,745 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=128, Unknown=0, NotChecked=0, Total=182 [2023-11-29 07:13:41,745 INFO L87 Difference]: Start difference. First operand 6326 states and 7305 transitions. Second operand has 14 states, 13 states have (on average 19.692307692307693) internal successors, (256), 14 states have internal predecessors, (256), 10 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 10 states have call predecessors, (12), 10 states have call successors, (12) [2023-11-29 07:13:45,448 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 07:13:45,448 INFO L93 Difference]: Finished difference Result 7363 states and 8461 transitions. [2023-11-29 07:13:45,449 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2023-11-29 07:13:45,449 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 19.692307692307693) internal successors, (256), 14 states have internal predecessors, (256), 10 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 10 states have call predecessors, (12), 10 states have call successors, (12) Word has length 155 [2023-11-29 07:13:45,449 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 07:13:45,455 INFO L225 Difference]: With dead ends: 7363 [2023-11-29 07:13:45,456 INFO L226 Difference]: Without dead ends: 7362 [2023-11-29 07:13:45,457 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 323 GetRequests, 296 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 135 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=263, Invalid=549, Unknown=0, NotChecked=0, Total=812 [2023-11-29 07:13:45,457 INFO L413 NwaCegarLoop]: 101 mSDtfsCounter, 675 mSDsluCounter, 668 mSDsCounter, 0 mSdLazyCounter, 1243 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 676 SdHoareTripleChecker+Valid, 769 SdHoareTripleChecker+Invalid, 1268 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 1243 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2023-11-29 07:13:45,457 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [676 Valid, 769 Invalid, 1268 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 1243 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2023-11-29 07:13:45,460 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7362 states. [2023-11-29 07:13:46,967 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7362 to 6805. [2023-11-29 07:13:46,969 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6805 states, 6577 states have (on average 1.1290862095180174) internal successors, (7426), 6592 states have internal predecessors, (7426), 210 states have call successors, (210), 2 states have call predecessors, (210), 2 states have return successors, (210), 210 states have call predecessors, (210), 210 states have call successors, (210) [2023-11-29 07:13:46,977 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6805 states to 6805 states and 7846 transitions. [2023-11-29 07:13:46,977 INFO L78 Accepts]: Start accepts. Automaton has 6805 states and 7846 transitions. Word has length 155 [2023-11-29 07:13:46,977 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 07:13:46,977 INFO L495 AbstractCegarLoop]: Abstraction has 6805 states and 7846 transitions. [2023-11-29 07:13:46,977 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 19.692307692307693) internal successors, (256), 14 states have internal predecessors, (256), 10 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 10 states have call predecessors, (12), 10 states have call successors, (12) [2023-11-29 07:13:46,977 INFO L276 IsEmpty]: Start isEmpty. Operand 6805 states and 7846 transitions. [2023-11-29 07:13:46,978 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2023-11-29 07:13:46,978 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 07:13:46,978 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 07:13:46,982 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2c6dc8-a580-46e1-b422-81b2f1468bab/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (87)] Forceful destruction successful, exit code 0 [2023-11-29 07:13:47,178 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable90,87 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2c6dc8-a580-46e1-b422-81b2f1468bab/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 07:13:47,179 INFO L420 AbstractCegarLoop]: === Iteration 92 === Targeting ULTIMATE.startErr43ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2023-11-29 07:13:47,179 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 07:13:47,179 INFO L85 PathProgramCache]: Analyzing trace with hash 381785684, now seen corresponding path program 1 times [2023-11-29 07:13:47,179 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 07:13:47,179 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1205102320] [2023-11-29 07:13:47,179 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:13:47,179 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 07:13:47,186 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 07:13:47,186 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2089389203] [2023-11-29 07:13:47,186 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:13:47,186 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 07:13:47,186 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2c6dc8-a580-46e1-b422-81b2f1468bab/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 07:13:47,187 INFO L229 MonitoredProcess]: Starting monitored process 88 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2c6dc8-a580-46e1-b422-81b2f1468bab/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 07:13:47,187 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2c6dc8-a580-46e1-b422-81b2f1468bab/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (88)] Waiting until timeout for monitored process [2023-11-29 07:13:47,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:13:47,253 INFO L262 TraceCheckSpWp]: Trace formula consists of 252 conjuncts, 27 conjunts are in the unsatisfiable core [2023-11-29 07:13:47,254 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 07:13:47,612 INFO L134 CoverageAnalysis]: Checked inductivity of 174 backedges. 0 proven. 146 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2023-11-29 07:13:47,612 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 07:13:48,019 INFO L134 CoverageAnalysis]: Checked inductivity of 174 backedges. 0 proven. 146 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2023-11-29 07:13:48,019 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 07:13:48,019 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1205102320] [2023-11-29 07:13:48,019 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 07:13:48,019 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2089389203] [2023-11-29 07:13:48,019 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2089389203] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 07:13:48,019 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 07:13:48,020 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13] total 25 [2023-11-29 07:13:48,020 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [580474710] [2023-11-29 07:13:48,020 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 07:13:48,020 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2023-11-29 07:13:48,020 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 07:13:48,021 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2023-11-29 07:13:48,021 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=101, Invalid=549, Unknown=0, NotChecked=0, Total=650 [2023-11-29 07:13:48,021 INFO L87 Difference]: Start difference. First operand 6805 states and 7846 transitions. Second operand has 26 states, 25 states have (on average 10.12) internal successors, (253), 26 states have internal predecessors, (253), 9 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 9 states have call predecessors, (10), 9 states have call successors, (10) [2023-11-29 07:13:50,240 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.74s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-29 07:13:55,499 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 07:13:55,499 INFO L93 Difference]: Finished difference Result 7073 states and 8122 transitions. [2023-11-29 07:13:55,500 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2023-11-29 07:13:55,500 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 25 states have (on average 10.12) internal successors, (253), 26 states have internal predecessors, (253), 9 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 9 states have call predecessors, (10), 9 states have call successors, (10) Word has length 156 [2023-11-29 07:13:55,500 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 07:13:55,506 INFO L225 Difference]: With dead ends: 7073 [2023-11-29 07:13:55,507 INFO L226 Difference]: Without dead ends: 7071 [2023-11-29 07:13:55,508 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 342 GetRequests, 286 SyntacticMatches, 0 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 573 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=662, Invalid=2644, Unknown=0, NotChecked=0, Total=3306 [2023-11-29 07:13:55,508 INFO L413 NwaCegarLoop]: 103 mSDtfsCounter, 813 mSDsluCounter, 1446 mSDsCounter, 0 mSdLazyCounter, 2049 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 814 SdHoareTripleChecker+Valid, 1549 SdHoareTripleChecker+Invalid, 2077 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 2049 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.8s IncrementalHoareTripleChecker+Time [2023-11-29 07:13:55,508 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [814 Valid, 1549 Invalid, 2077 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 2049 Invalid, 0 Unknown, 0 Unchecked, 4.8s Time] [2023-11-29 07:13:55,512 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7071 states. [2023-11-29 07:13:57,034 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7071 to 6892. [2023-11-29 07:13:57,038 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6892 states, 6662 states have (on average 1.127889522665866) internal successors, (7514), 6677 states have internal predecessors, (7514), 212 states have call successors, (212), 2 states have call predecessors, (212), 2 states have return successors, (212), 212 states have call predecessors, (212), 212 states have call successors, (212) [2023-11-29 07:13:57,046 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6892 states to 6892 states and 7938 transitions. [2023-11-29 07:13:57,046 INFO L78 Accepts]: Start accepts. Automaton has 6892 states and 7938 transitions. Word has length 156 [2023-11-29 07:13:57,046 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 07:13:57,046 INFO L495 AbstractCegarLoop]: Abstraction has 6892 states and 7938 transitions. [2023-11-29 07:13:57,046 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 25 states have (on average 10.12) internal successors, (253), 26 states have internal predecessors, (253), 9 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 9 states have call predecessors, (10), 9 states have call successors, (10) [2023-11-29 07:13:57,046 INFO L276 IsEmpty]: Start isEmpty. Operand 6892 states and 7938 transitions. [2023-11-29 07:13:57,047 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2023-11-29 07:13:57,047 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 07:13:57,047 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 07:13:57,051 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2c6dc8-a580-46e1-b422-81b2f1468bab/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (88)] Ended with exit code 0 [2023-11-29 07:13:57,247 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable91,88 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2c6dc8-a580-46e1-b422-81b2f1468bab/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 07:13:57,248 INFO L420 AbstractCegarLoop]: === Iteration 93 === Targeting ULTIMATE.startErr31ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2023-11-29 07:13:57,248 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 07:13:57,248 INFO L85 PathProgramCache]: Analyzing trace with hash 748914513, now seen corresponding path program 2 times [2023-11-29 07:13:57,248 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 07:13:57,248 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [3572404] [2023-11-29 07:13:57,248 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:13:57,248 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 07:13:57,255 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 07:13:57,255 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1457999261] [2023-11-29 07:13:57,255 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-29 07:13:57,255 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 07:13:57,255 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2c6dc8-a580-46e1-b422-81b2f1468bab/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 07:13:57,256 INFO L229 MonitoredProcess]: Starting monitored process 89 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2c6dc8-a580-46e1-b422-81b2f1468bab/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 07:13:57,257 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2c6dc8-a580-46e1-b422-81b2f1468bab/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (89)] Waiting until timeout for monitored process [2023-11-29 07:13:57,318 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-29 07:13:57,319 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 07:13:57,320 INFO L262 TraceCheckSpWp]: Trace formula consists of 255 conjuncts, 12 conjunts are in the unsatisfiable core [2023-11-29 07:13:57,321 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 07:13:58,124 INFO L134 CoverageAnalysis]: Checked inductivity of 211 backedges. 0 proven. 183 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2023-11-29 07:13:58,124 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 07:13:58,900 INFO L134 CoverageAnalysis]: Checked inductivity of 211 backedges. 0 proven. 183 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2023-11-29 07:13:58,900 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 07:13:58,901 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [3572404] [2023-11-29 07:13:58,901 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 07:13:58,901 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1457999261] [2023-11-29 07:13:58,901 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1457999261] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 07:13:58,901 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 07:13:58,901 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 21 [2023-11-29 07:13:58,901 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [571802705] [2023-11-29 07:13:58,901 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 07:13:58,902 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2023-11-29 07:13:58,902 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 07:13:58,903 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2023-11-29 07:13:58,903 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=114, Invalid=348, Unknown=0, NotChecked=0, Total=462 [2023-11-29 07:13:58,903 INFO L87 Difference]: Start difference. First operand 6892 states and 7938 transitions. Second operand has 22 states, 21 states have (on average 12.523809523809524) internal successors, (263), 22 states have internal predecessors, (263), 11 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2023-11-29 07:14:03,128 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 07:14:03,128 INFO L93 Difference]: Finished difference Result 7194 states and 8263 transitions. [2023-11-29 07:14:03,129 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2023-11-29 07:14:03,129 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 21 states have (on average 12.523809523809524) internal successors, (263), 22 states have internal predecessors, (263), 11 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) Word has length 159 [2023-11-29 07:14:03,129 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 07:14:03,136 INFO L225 Difference]: With dead ends: 7194 [2023-11-29 07:14:03,136 INFO L226 Difference]: Without dead ends: 7193 [2023-11-29 07:14:03,137 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 339 GetRequests, 296 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 420 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=571, Invalid=1409, Unknown=0, NotChecked=0, Total=1980 [2023-11-29 07:14:03,137 INFO L413 NwaCegarLoop]: 104 mSDtfsCounter, 591 mSDsluCounter, 697 mSDsCounter, 0 mSdLazyCounter, 1781 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 592 SdHoareTripleChecker+Valid, 801 SdHoareTripleChecker+Invalid, 1818 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 1781 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2023-11-29 07:14:03,137 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [592 Valid, 801 Invalid, 1818 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 1781 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2023-11-29 07:14:03,141 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7193 states. [2023-11-29 07:14:04,713 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7193 to 7050. [2023-11-29 07:14:04,717 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7050 states, 6815 states have (on average 1.1273661041819516) internal successors, (7683), 6830 states have internal predecessors, (7683), 217 states have call successors, (217), 2 states have call predecessors, (217), 2 states have return successors, (217), 217 states have call predecessors, (217), 217 states have call successors, (217) [2023-11-29 07:14:04,726 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7050 states to 7050 states and 8117 transitions. [2023-11-29 07:14:04,726 INFO L78 Accepts]: Start accepts. Automaton has 7050 states and 8117 transitions. Word has length 159 [2023-11-29 07:14:04,726 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 07:14:04,726 INFO L495 AbstractCegarLoop]: Abstraction has 7050 states and 8117 transitions. [2023-11-29 07:14:04,727 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 21 states have (on average 12.523809523809524) internal successors, (263), 22 states have internal predecessors, (263), 11 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2023-11-29 07:14:04,727 INFO L276 IsEmpty]: Start isEmpty. Operand 7050 states and 8117 transitions. [2023-11-29 07:14:04,728 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2023-11-29 07:14:04,728 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 07:14:04,728 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 07:14:04,733 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2c6dc8-a580-46e1-b422-81b2f1468bab/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (89)] Ended with exit code 0 [2023-11-29 07:14:04,928 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable92,89 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2c6dc8-a580-46e1-b422-81b2f1468bab/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 07:14:04,929 INFO L420 AbstractCegarLoop]: === Iteration 94 === Targeting ULTIMATE.startErr56ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2023-11-29 07:14:04,929 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 07:14:04,929 INFO L85 PathProgramCache]: Analyzing trace with hash 1518767978, now seen corresponding path program 2 times [2023-11-29 07:14:04,929 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 07:14:04,929 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1582623634] [2023-11-29 07:14:04,929 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:14:04,929 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 07:14:04,938 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 07:14:04,938 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [908465714] [2023-11-29 07:14:04,938 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-29 07:14:04,938 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 07:14:04,939 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2c6dc8-a580-46e1-b422-81b2f1468bab/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 07:14:04,940 INFO L229 MonitoredProcess]: Starting monitored process 90 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2c6dc8-a580-46e1-b422-81b2f1468bab/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 07:14:04,940 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2c6dc8-a580-46e1-b422-81b2f1468bab/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (90)] Waiting until timeout for monitored process [2023-11-29 07:14:04,996 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-11-29 07:14:04,996 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 07:14:04,997 INFO L262 TraceCheckSpWp]: Trace formula consists of 100 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-29 07:14:04,999 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 07:14:05,166 INFO L134 CoverageAnalysis]: Checked inductivity of 178 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 178 trivial. 0 not checked. [2023-11-29 07:14:05,166 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 07:14:05,167 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 07:14:05,167 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1582623634] [2023-11-29 07:14:05,167 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 07:14:05,167 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [908465714] [2023-11-29 07:14:05,167 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [908465714] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 07:14:05,167 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 07:14:05,167 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 07:14:05,167 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1743776168] [2023-11-29 07:14:05,167 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 07:14:05,168 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 07:14:05,168 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 07:14:05,168 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 07:14:05,168 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-29 07:14:05,168 INFO L87 Difference]: Start difference. First operand 7050 states and 8117 transitions. Second operand has 4 states, 3 states have (on average 20.666666666666668) internal successors, (62), 4 states have internal predecessors, (62), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-11-29 07:14:07,117 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 07:14:07,117 INFO L93 Difference]: Finished difference Result 7052 states and 8117 transitions. [2023-11-29 07:14:07,118 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 07:14:07,118 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 20.666666666666668) internal successors, (62), 4 states have internal predecessors, (62), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 161 [2023-11-29 07:14:07,118 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 07:14:07,122 INFO L225 Difference]: With dead ends: 7052 [2023-11-29 07:14:07,122 INFO L226 Difference]: Without dead ends: 7030 [2023-11-29 07:14:07,123 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 160 GetRequests, 158 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 07:14:07,123 INFO L413 NwaCegarLoop]: 88 mSDtfsCounter, 17 mSDsluCounter, 95 mSDsCounter, 0 mSdLazyCounter, 128 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 183 SdHoareTripleChecker+Invalid, 130 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 128 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-29 07:14:07,123 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 183 Invalid, 130 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 128 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-29 07:14:07,126 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7030 states. [2023-11-29 07:14:09,021 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7030 to 7029. [2023-11-29 07:14:09,025 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7029 states, 6794 states have (on average 1.1273182219605535) internal successors, (7659), 6809 states have internal predecessors, (7659), 217 states have call successors, (217), 2 states have call predecessors, (217), 2 states have return successors, (217), 217 states have call predecessors, (217), 217 states have call successors, (217) [2023-11-29 07:14:09,035 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7029 states to 7029 states and 8093 transitions. [2023-11-29 07:14:09,035 INFO L78 Accepts]: Start accepts. Automaton has 7029 states and 8093 transitions. Word has length 161 [2023-11-29 07:14:09,035 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 07:14:09,035 INFO L495 AbstractCegarLoop]: Abstraction has 7029 states and 8093 transitions. [2023-11-29 07:14:09,035 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 20.666666666666668) internal successors, (62), 4 states have internal predecessors, (62), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-11-29 07:14:09,036 INFO L276 IsEmpty]: Start isEmpty. Operand 7029 states and 8093 transitions. [2023-11-29 07:14:09,037 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2023-11-29 07:14:09,038 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 07:14:09,038 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 07:14:09,043 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2c6dc8-a580-46e1-b422-81b2f1468bab/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (90)] Ended with exit code 0 [2023-11-29 07:14:09,238 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable93,90 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2c6dc8-a580-46e1-b422-81b2f1468bab/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 07:14:09,238 INFO L420 AbstractCegarLoop]: === Iteration 95 === Targeting ULTIMATE.startErr51ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2023-11-29 07:14:09,239 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 07:14:09,239 INFO L85 PathProgramCache]: Analyzing trace with hash -611426980, now seen corresponding path program 1 times [2023-11-29 07:14:09,239 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 07:14:09,239 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1421683700] [2023-11-29 07:14:09,239 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:14:09,239 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 07:14:09,250 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 07:14:09,250 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1127354554] [2023-11-29 07:14:09,250 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:14:09,250 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 07:14:09,250 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2c6dc8-a580-46e1-b422-81b2f1468bab/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 07:14:09,251 INFO L229 MonitoredProcess]: Starting monitored process 91 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2c6dc8-a580-46e1-b422-81b2f1468bab/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 07:14:09,252 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2c6dc8-a580-46e1-b422-81b2f1468bab/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (91)] Waiting until timeout for monitored process [2023-11-29 07:14:09,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:14:09,332 INFO L262 TraceCheckSpWp]: Trace formula consists of 260 conjuncts, 13 conjunts are in the unsatisfiable core [2023-11-29 07:14:09,335 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 07:14:10,015 INFO L134 CoverageAnalysis]: Checked inductivity of 174 backedges. 0 proven. 146 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2023-11-29 07:14:10,015 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 07:14:11,039 INFO L134 CoverageAnalysis]: Checked inductivity of 174 backedges. 0 proven. 146 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2023-11-29 07:14:11,039 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 07:14:11,039 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1421683700] [2023-11-29 07:14:11,039 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 07:14:11,039 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1127354554] [2023-11-29 07:14:11,040 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1127354554] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 07:14:11,040 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 07:14:11,040 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12] total 23 [2023-11-29 07:14:11,040 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2126357045] [2023-11-29 07:14:11,040 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 07:14:11,041 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2023-11-29 07:14:11,041 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 07:14:11,042 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2023-11-29 07:14:11,042 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=122, Invalid=430, Unknown=0, NotChecked=0, Total=552 [2023-11-29 07:14:11,042 INFO L87 Difference]: Start difference. First operand 7029 states and 8093 transitions. Second operand has 24 states, 23 states have (on average 11.695652173913043) internal successors, (269), 24 states have internal predecessors, (269), 9 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 9 states have call predecessors, (10), 9 states have call successors, (10) [2023-11-29 07:14:15,455 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 07:14:15,456 INFO L93 Difference]: Finished difference Result 7103 states and 8159 transitions. [2023-11-29 07:14:15,456 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2023-11-29 07:14:15,456 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 23 states have (on average 11.695652173913043) internal successors, (269), 24 states have internal predecessors, (269), 9 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 9 states have call predecessors, (10), 9 states have call successors, (10) Word has length 164 [2023-11-29 07:14:15,456 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 07:14:15,462 INFO L225 Difference]: With dead ends: 7103 [2023-11-29 07:14:15,462 INFO L226 Difference]: Without dead ends: 7102 [2023-11-29 07:14:15,463 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 360 GetRequests, 304 SyntacticMatches, 0 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 744 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=741, Invalid=2565, Unknown=0, NotChecked=0, Total=3306 [2023-11-29 07:14:15,463 INFO L413 NwaCegarLoop]: 100 mSDtfsCounter, 745 mSDsluCounter, 675 mSDsCounter, 0 mSdLazyCounter, 1660 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 746 SdHoareTripleChecker+Valid, 775 SdHoareTripleChecker+Invalid, 1699 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 1660 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2023-11-29 07:14:15,463 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [746 Valid, 775 Invalid, 1699 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 1660 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2023-11-29 07:14:15,466 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7102 states. [2023-11-29 07:14:16,830 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7102 to 7043. [2023-11-29 07:14:16,833 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7043 states, 6808 states have (on average 1.126909518213866) internal successors, (7672), 6823 states have internal predecessors, (7672), 217 states have call successors, (217), 2 states have call predecessors, (217), 2 states have return successors, (217), 217 states have call predecessors, (217), 217 states have call successors, (217) [2023-11-29 07:14:16,842 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7043 states to 7043 states and 8106 transitions. [2023-11-29 07:14:16,842 INFO L78 Accepts]: Start accepts. Automaton has 7043 states and 8106 transitions. Word has length 164 [2023-11-29 07:14:16,842 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 07:14:16,843 INFO L495 AbstractCegarLoop]: Abstraction has 7043 states and 8106 transitions. [2023-11-29 07:14:16,843 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 23 states have (on average 11.695652173913043) internal successors, (269), 24 states have internal predecessors, (269), 9 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 9 states have call predecessors, (10), 9 states have call successors, (10) [2023-11-29 07:14:16,843 INFO L276 IsEmpty]: Start isEmpty. Operand 7043 states and 8106 transitions. [2023-11-29 07:14:16,844 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2023-11-29 07:14:16,844 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 07:14:16,844 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 07:14:16,849 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2c6dc8-a580-46e1-b422-81b2f1468bab/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (91)] Ended with exit code 0 [2023-11-29 07:14:17,045 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable94,91 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2c6dc8-a580-46e1-b422-81b2f1468bab/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 07:14:17,045 INFO L420 AbstractCegarLoop]: === Iteration 96 === Targeting ULTIMATE.startErr53ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2023-11-29 07:14:17,045 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 07:14:17,045 INFO L85 PathProgramCache]: Analyzing trace with hash 829197086, now seen corresponding path program 1 times [2023-11-29 07:14:17,045 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 07:14:17,045 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1364352586] [2023-11-29 07:14:17,045 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:14:17,045 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 07:14:17,054 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 07:14:17,054 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1311969818] [2023-11-29 07:14:17,054 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:14:17,055 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 07:14:17,055 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2c6dc8-a580-46e1-b422-81b2f1468bab/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 07:14:17,056 INFO L229 MonitoredProcess]: Starting monitored process 92 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2c6dc8-a580-46e1-b422-81b2f1468bab/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 07:14:17,056 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2c6dc8-a580-46e1-b422-81b2f1468bab/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (92)] Waiting until timeout for monitored process [2023-11-29 07:14:17,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:14:17,139 INFO L262 TraceCheckSpWp]: Trace formula consists of 262 conjuncts, 29 conjunts are in the unsatisfiable core [2023-11-29 07:14:17,143 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 07:14:21,100 INFO L134 CoverageAnalysis]: Checked inductivity of 174 backedges. 0 proven. 146 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2023-11-29 07:14:21,100 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 07:14:22,816 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 07:14:22,816 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1364352586] [2023-11-29 07:14:22,816 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 07:14:22,817 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1311969818] [2023-11-29 07:14:22,817 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1311969818] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 07:14:22,817 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 07:14:22,817 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18] total 18 [2023-11-29 07:14:22,817 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [487030896] [2023-11-29 07:14:22,817 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 07:14:22,818 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2023-11-29 07:14:22,818 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 07:14:22,818 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2023-11-29 07:14:22,818 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=165, Invalid=647, Unknown=0, NotChecked=0, Total=812 [2023-11-29 07:14:22,818 INFO L87 Difference]: Start difference. First operand 7043 states and 8106 transitions. Second operand has 19 states, 18 states have (on average 7.888888888888889) internal successors, (142), 19 states have internal predecessors, (142), 5 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 5 states have call predecessors, (6), 5 states have call successors, (6) [2023-11-29 07:14:27,118 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 07:14:27,118 INFO L93 Difference]: Finished difference Result 7062 states and 8124 transitions. [2023-11-29 07:14:27,118 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2023-11-29 07:14:27,119 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 18 states have (on average 7.888888888888889) internal successors, (142), 19 states have internal predecessors, (142), 5 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 5 states have call predecessors, (6), 5 states have call successors, (6) Word has length 166 [2023-11-29 07:14:27,119 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 07:14:27,125 INFO L225 Difference]: With dead ends: 7062 [2023-11-29 07:14:27,125 INFO L226 Difference]: Without dead ends: 7043 [2023-11-29 07:14:27,127 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 227 GetRequests, 194 SyntacticMatches, 1 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 163 ImplicationChecksByTransitivity, 3.7s TimeCoverageRelationStatistics Valid=226, Invalid=896, Unknown=0, NotChecked=0, Total=1122 [2023-11-29 07:14:27,127 INFO L413 NwaCegarLoop]: 76 mSDtfsCounter, 63 mSDsluCounter, 621 mSDsCounter, 0 mSdLazyCounter, 2122 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 63 SdHoareTripleChecker+Valid, 697 SdHoareTripleChecker+Invalid, 2123 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 2122 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2023-11-29 07:14:27,127 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [63 Valid, 697 Invalid, 2123 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 2122 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2023-11-29 07:14:27,131 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7043 states. [2023-11-29 07:14:28,706 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7043 to 7043. [2023-11-29 07:14:28,709 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7043 states, 6808 states have (on average 1.126762632197415) internal successors, (7671), 6823 states have internal predecessors, (7671), 217 states have call successors, (217), 2 states have call predecessors, (217), 2 states have return successors, (217), 217 states have call predecessors, (217), 217 states have call successors, (217) [2023-11-29 07:14:28,718 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7043 states to 7043 states and 8105 transitions. [2023-11-29 07:14:28,719 INFO L78 Accepts]: Start accepts. Automaton has 7043 states and 8105 transitions. Word has length 166 [2023-11-29 07:14:28,719 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 07:14:28,719 INFO L495 AbstractCegarLoop]: Abstraction has 7043 states and 8105 transitions. [2023-11-29 07:14:28,719 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 18 states have (on average 7.888888888888889) internal successors, (142), 19 states have internal predecessors, (142), 5 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 5 states have call predecessors, (6), 5 states have call successors, (6) [2023-11-29 07:14:28,719 INFO L276 IsEmpty]: Start isEmpty. Operand 7043 states and 8105 transitions. [2023-11-29 07:14:28,720 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2023-11-29 07:14:28,720 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 07:14:28,721 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 07:14:28,725 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2c6dc8-a580-46e1-b422-81b2f1468bab/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (92)] Ended with exit code 0 [2023-11-29 07:14:28,921 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 92 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2c6dc8-a580-46e1-b422-81b2f1468bab/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable95 [2023-11-29 07:14:28,921 INFO L420 AbstractCegarLoop]: === Iteration 97 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2023-11-29 07:14:28,921 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 07:14:28,921 INFO L85 PathProgramCache]: Analyzing trace with hash -1946222084, now seen corresponding path program 2 times [2023-11-29 07:14:28,922 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 07:14:28,922 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [640326523] [2023-11-29 07:14:28,922 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:14:28,922 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 07:14:28,931 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 07:14:28,931 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2086645964] [2023-11-29 07:14:28,932 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-29 07:14:28,932 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 07:14:28,932 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2c6dc8-a580-46e1-b422-81b2f1468bab/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 07:14:28,933 INFO L229 MonitoredProcess]: Starting monitored process 93 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2c6dc8-a580-46e1-b422-81b2f1468bab/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 07:14:28,935 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2c6dc8-a580-46e1-b422-81b2f1468bab/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (93)] Waiting until timeout for monitored process [2023-11-29 07:14:29,053 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-29 07:14:29,053 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 07:14:29,055 INFO L262 TraceCheckSpWp]: Trace formula consists of 269 conjuncts, 32 conjunts are in the unsatisfiable core [2023-11-29 07:14:29,057 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 07:14:31,538 INFO L134 CoverageAnalysis]: Checked inductivity of 238 backedges. 24 proven. 189 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2023-11-29 07:14:31,538 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 07:14:37,061 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 07:14:37,062 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [640326523] [2023-11-29 07:14:37,062 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 07:14:37,062 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2086645964] [2023-11-29 07:14:37,062 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2086645964] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 07:14:37,062 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 07:14:37,062 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [22] total 22 [2023-11-29 07:14:37,062 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1958694120] [2023-11-29 07:14:37,062 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 07:14:37,063 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2023-11-29 07:14:37,063 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 07:14:37,063 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2023-11-29 07:14:37,064 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=116, Invalid=814, Unknown=0, NotChecked=0, Total=930 [2023-11-29 07:14:37,064 INFO L87 Difference]: Start difference. First operand 7043 states and 8105 transitions. Second operand has 23 states, 22 states have (on average 6.681818181818182) internal successors, (147), 23 states have internal predecessors, (147), 6 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (6), 5 states have call predecessors, (6), 6 states have call successors, (6) [2023-11-29 07:14:44,348 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 07:14:44,348 INFO L93 Difference]: Finished difference Result 7123 states and 8180 transitions. [2023-11-29 07:14:44,348 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2023-11-29 07:14:44,348 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 22 states have (on average 6.681818181818182) internal successors, (147), 23 states have internal predecessors, (147), 6 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (6), 5 states have call predecessors, (6), 6 states have call successors, (6) Word has length 168 [2023-11-29 07:14:44,349 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 07:14:44,353 INFO L225 Difference]: With dead ends: 7123 [2023-11-29 07:14:44,353 INFO L226 Difference]: Without dead ends: 7122 [2023-11-29 07:14:44,354 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 207 GetRequests, 163 SyntacticMatches, 1 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 388 ImplicationChecksByTransitivity, 7.9s TimeCoverageRelationStatistics Valid=260, Invalid=1720, Unknown=0, NotChecked=0, Total=1980 [2023-11-29 07:14:44,354 INFO L413 NwaCegarLoop]: 88 mSDtfsCounter, 370 mSDsluCounter, 931 mSDsCounter, 0 mSdLazyCounter, 3858 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 371 SdHoareTripleChecker+Valid, 1019 SdHoareTripleChecker+Invalid, 3865 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 3858 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2023-11-29 07:14:44,354 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [371 Valid, 1019 Invalid, 3865 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 3858 Invalid, 0 Unknown, 0 Unchecked, 3.3s Time] [2023-11-29 07:14:44,357 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7122 states. [2023-11-29 07:14:45,707 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7122 to 7043. [2023-11-29 07:14:45,712 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7043 states, 6808 states have (on average 1.1254406580493537) internal successors, (7662), 6823 states have internal predecessors, (7662), 217 states have call successors, (217), 2 states have call predecessors, (217), 2 states have return successors, (217), 217 states have call predecessors, (217), 217 states have call successors, (217) [2023-11-29 07:14:45,722 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7043 states to 7043 states and 8096 transitions. [2023-11-29 07:14:45,722 INFO L78 Accepts]: Start accepts. Automaton has 7043 states and 8096 transitions. Word has length 168 [2023-11-29 07:14:45,722 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 07:14:45,722 INFO L495 AbstractCegarLoop]: Abstraction has 7043 states and 8096 transitions. [2023-11-29 07:14:45,722 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 22 states have (on average 6.681818181818182) internal successors, (147), 23 states have internal predecessors, (147), 6 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (6), 5 states have call predecessors, (6), 6 states have call successors, (6) [2023-11-29 07:14:45,723 INFO L276 IsEmpty]: Start isEmpty. Operand 7043 states and 8096 transitions. [2023-11-29 07:14:45,724 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2023-11-29 07:14:45,725 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 07:14:45,725 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 07:14:45,730 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2c6dc8-a580-46e1-b422-81b2f1468bab/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (93)] Forceful destruction successful, exit code 0 [2023-11-29 07:14:45,925 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 93 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2c6dc8-a580-46e1-b422-81b2f1468bab/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable96 [2023-11-29 07:14:45,925 INFO L420 AbstractCegarLoop]: === Iteration 98 === Targeting ULTIMATE.startErr51ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2023-11-29 07:14:45,926 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 07:14:45,926 INFO L85 PathProgramCache]: Analyzing trace with hash 1401075662, now seen corresponding path program 2 times [2023-11-29 07:14:45,926 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 07:14:45,926 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1795698048] [2023-11-29 07:14:45,926 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:14:45,926 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 07:14:45,936 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 07:14:45,936 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1732357711] [2023-11-29 07:14:45,936 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-29 07:14:45,936 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 07:14:45,936 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2c6dc8-a580-46e1-b422-81b2f1468bab/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 07:14:45,937 INFO L229 MonitoredProcess]: Starting monitored process 94 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2c6dc8-a580-46e1-b422-81b2f1468bab/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 07:14:45,938 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2c6dc8-a580-46e1-b422-81b2f1468bab/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (94)] Waiting until timeout for monitored process [2023-11-29 07:14:46,083 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-29 07:14:46,083 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 07:14:46,085 INFO L262 TraceCheckSpWp]: Trace formula consists of 268 conjuncts, 14 conjunts are in the unsatisfiable core [2023-11-29 07:14:46,087 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 07:14:46,905 INFO L134 CoverageAnalysis]: Checked inductivity of 190 backedges. 162 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2023-11-29 07:14:46,905 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 07:14:46,905 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 07:14:46,905 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1795698048] [2023-11-29 07:14:46,905 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 07:14:46,905 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1732357711] [2023-11-29 07:14:46,906 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1732357711] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 07:14:46,906 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 07:14:46,906 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2023-11-29 07:14:46,906 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [542333882] [2023-11-29 07:14:46,906 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 07:14:46,906 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2023-11-29 07:14:46,906 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 07:14:46,907 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2023-11-29 07:14:46,907 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=156, Unknown=0, NotChecked=0, Total=210 [2023-11-29 07:14:46,907 INFO L87 Difference]: Start difference. First operand 7043 states and 8096 transitions. Second operand has 15 states, 14 states have (on average 10.285714285714286) internal successors, (144), 15 states have internal predecessors, (144), 5 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 5 states have call predecessors, (6), 5 states have call successors, (6) [2023-11-29 07:14:50,907 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 07:14:50,908 INFO L93 Difference]: Finished difference Result 7139 states and 8182 transitions. [2023-11-29 07:14:50,908 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-11-29 07:14:50,908 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 10.285714285714286) internal successors, (144), 15 states have internal predecessors, (144), 5 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 5 states have call predecessors, (6), 5 states have call successors, (6) Word has length 168 [2023-11-29 07:14:50,908 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 07:14:50,915 INFO L225 Difference]: With dead ends: 7139 [2023-11-29 07:14:50,915 INFO L226 Difference]: Without dead ends: 7138 [2023-11-29 07:14:50,916 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 175 GetRequests, 154 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 77 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=133, Invalid=373, Unknown=0, NotChecked=0, Total=506 [2023-11-29 07:14:50,916 INFO L413 NwaCegarLoop]: 134 mSDtfsCounter, 284 mSDsluCounter, 471 mSDsCounter, 0 mSdLazyCounter, 732 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 284 SdHoareTripleChecker+Valid, 605 SdHoareTripleChecker+Invalid, 736 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 732 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2023-11-29 07:14:50,916 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [284 Valid, 605 Invalid, 736 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 732 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2023-11-29 07:14:50,920 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7138 states. [2023-11-29 07:14:52,497 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7138 to 7025. [2023-11-29 07:14:52,501 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7025 states, 6790 states have (on average 1.1250368188512518) internal successors, (7639), 6805 states have internal predecessors, (7639), 217 states have call successors, (217), 2 states have call predecessors, (217), 2 states have return successors, (217), 217 states have call predecessors, (217), 217 states have call successors, (217) [2023-11-29 07:14:52,510 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7025 states to 7025 states and 8073 transitions. [2023-11-29 07:14:52,511 INFO L78 Accepts]: Start accepts. Automaton has 7025 states and 8073 transitions. Word has length 168 [2023-11-29 07:14:52,511 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 07:14:52,511 INFO L495 AbstractCegarLoop]: Abstraction has 7025 states and 8073 transitions. [2023-11-29 07:14:52,511 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 10.285714285714286) internal successors, (144), 15 states have internal predecessors, (144), 5 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 5 states have call predecessors, (6), 5 states have call successors, (6) [2023-11-29 07:14:52,511 INFO L276 IsEmpty]: Start isEmpty. Operand 7025 states and 8073 transitions. [2023-11-29 07:14:52,512 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2023-11-29 07:14:52,512 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 07:14:52,513 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 07:14:52,517 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2c6dc8-a580-46e1-b422-81b2f1468bab/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (94)] Ended with exit code 0 [2023-11-29 07:14:52,713 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 94 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2c6dc8-a580-46e1-b422-81b2f1468bab/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable97 [2023-11-29 07:14:52,713 INFO L420 AbstractCegarLoop]: === Iteration 99 === Targeting ULTIMATE.startErr52ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2023-11-29 07:14:52,713 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 07:14:52,714 INFO L85 PathProgramCache]: Analyzing trace with hash 483672728, now seen corresponding path program 1 times [2023-11-29 07:14:52,714 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 07:14:52,714 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1224154043] [2023-11-29 07:14:52,714 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:14:52,714 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 07:14:52,725 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 07:14:52,725 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [835982757] [2023-11-29 07:14:52,725 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:14:52,725 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 07:14:52,725 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2c6dc8-a580-46e1-b422-81b2f1468bab/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 07:14:52,727 INFO L229 MonitoredProcess]: Starting monitored process 95 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2c6dc8-a580-46e1-b422-81b2f1468bab/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 07:14:52,727 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2c6dc8-a580-46e1-b422-81b2f1468bab/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (95)] Waiting until timeout for monitored process [2023-11-29 07:14:52,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:14:52,814 INFO L262 TraceCheckSpWp]: Trace formula consists of 269 conjuncts, 29 conjunts are in the unsatisfiable core [2023-11-29 07:14:52,817 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 07:15:02,035 INFO L134 CoverageAnalysis]: Checked inductivity of 190 backedges. 9 proven. 162 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2023-11-29 07:15:02,035 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 07:15:05,434 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 07:15:05,434 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1224154043] [2023-11-29 07:15:05,434 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 07:15:05,434 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [835982757] [2023-11-29 07:15:05,434 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [835982757] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 07:15:05,434 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 07:15:05,434 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23] total 23 [2023-11-29 07:15:05,434 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1959946105] [2023-11-29 07:15:05,434 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 07:15:05,435 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2023-11-29 07:15:05,435 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 07:15:05,435 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2023-11-29 07:15:05,435 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=136, Invalid=1123, Unknown=1, NotChecked=0, Total=1260 [2023-11-29 07:15:05,435 INFO L87 Difference]: Start difference. First operand 7025 states and 8073 transitions. Second operand has 24 states, 23 states have (on average 6.434782608695652) internal successors, (148), 23 states have internal predecessors, (148), 5 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (6), 5 states have call predecessors, (6), 5 states have call successors, (6) [2023-11-29 07:15:19,998 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 07:15:19,998 INFO L93 Difference]: Finished difference Result 7037 states and 8084 transitions. [2023-11-29 07:15:19,998 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2023-11-29 07:15:19,999 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 23 states have (on average 6.434782608695652) internal successors, (148), 23 states have internal predecessors, (148), 5 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (6), 5 states have call predecessors, (6), 5 states have call successors, (6) Word has length 169 [2023-11-29 07:15:19,999 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 07:15:20,005 INFO L225 Difference]: With dead ends: 7037 [2023-11-29 07:15:20,005 INFO L226 Difference]: Without dead ends: 7036 [2023-11-29 07:15:20,006 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 236 GetRequests, 190 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 386 ImplicationChecksByTransitivity, 14.2s TimeCoverageRelationStatistics Valid=282, Invalid=1973, Unknown=1, NotChecked=0, Total=2256 [2023-11-29 07:15:20,006 INFO L413 NwaCegarLoop]: 108 mSDtfsCounter, 211 mSDsluCounter, 1281 mSDsCounter, 0 mSdLazyCounter, 2563 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 211 SdHoareTripleChecker+Valid, 1389 SdHoareTripleChecker+Invalid, 2569 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 2563 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.2s IncrementalHoareTripleChecker+Time [2023-11-29 07:15:20,006 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [211 Valid, 1389 Invalid, 2569 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 2563 Invalid, 0 Unknown, 0 Unchecked, 6.2s Time] [2023-11-29 07:15:20,010 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7036 states. [2023-11-29 07:15:21,557 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7036 to 7017. [2023-11-29 07:15:21,561 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7017 states, 6782 states have (on average 1.1251843114125626) internal successors, (7631), 6797 states have internal predecessors, (7631), 217 states have call successors, (217), 2 states have call predecessors, (217), 2 states have return successors, (217), 217 states have call predecessors, (217), 217 states have call successors, (217) [2023-11-29 07:15:21,568 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7017 states to 7017 states and 8065 transitions. [2023-11-29 07:15:21,568 INFO L78 Accepts]: Start accepts. Automaton has 7017 states and 8065 transitions. Word has length 169 [2023-11-29 07:15:21,569 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 07:15:21,569 INFO L495 AbstractCegarLoop]: Abstraction has 7017 states and 8065 transitions. [2023-11-29 07:15:21,569 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 23 states have (on average 6.434782608695652) internal successors, (148), 23 states have internal predecessors, (148), 5 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (6), 5 states have call predecessors, (6), 5 states have call successors, (6) [2023-11-29 07:15:21,569 INFO L276 IsEmpty]: Start isEmpty. Operand 7017 states and 8065 transitions. [2023-11-29 07:15:21,571 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2023-11-29 07:15:21,571 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 07:15:21,571 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 07:15:21,575 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2c6dc8-a580-46e1-b422-81b2f1468bab/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (95)] Ended with exit code 0 [2023-11-29 07:15:21,771 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable98,95 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2c6dc8-a580-46e1-b422-81b2f1468bab/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 07:15:21,771 INFO L420 AbstractCegarLoop]: === Iteration 100 === Targeting ULTIMATE.startErr53ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2023-11-29 07:15:21,772 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 07:15:21,772 INFO L85 PathProgramCache]: Analyzing trace with hash 2108952848, now seen corresponding path program 2 times [2023-11-29 07:15:21,772 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 07:15:21,772 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1755075552] [2023-11-29 07:15:21,772 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:15:21,772 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 07:15:21,781 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 07:15:21,781 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [687821270] [2023-11-29 07:15:21,781 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-29 07:15:21,781 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 07:15:21,782 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2c6dc8-a580-46e1-b422-81b2f1468bab/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 07:15:21,782 INFO L229 MonitoredProcess]: Starting monitored process 96 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2c6dc8-a580-46e1-b422-81b2f1468bab/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 07:15:21,783 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2c6dc8-a580-46e1-b422-81b2f1468bab/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (96)] Waiting until timeout for monitored process [2023-11-29 07:15:21,843 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-29 07:15:21,843 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 07:15:21,845 INFO L262 TraceCheckSpWp]: Trace formula consists of 270 conjuncts, 15 conjunts are in the unsatisfiable core [2023-11-29 07:15:21,846 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 07:15:22,554 INFO L134 CoverageAnalysis]: Checked inductivity of 190 backedges. 0 proven. 162 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2023-11-29 07:15:22,555 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 07:15:24,900 INFO L134 CoverageAnalysis]: Checked inductivity of 190 backedges. 0 proven. 162 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2023-11-29 07:15:24,901 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 07:15:24,901 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1755075552] [2023-11-29 07:15:24,901 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 07:15:24,901 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [687821270] [2023-11-29 07:15:24,901 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [687821270] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 07:15:24,901 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 07:15:24,901 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14] total 27 [2023-11-29 07:15:24,901 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1193129446] [2023-11-29 07:15:24,901 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 07:15:24,902 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2023-11-29 07:15:24,902 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 07:15:24,903 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2023-11-29 07:15:24,903 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=149, Invalid=607, Unknown=0, NotChecked=0, Total=756 [2023-11-29 07:15:24,903 INFO L87 Difference]: Start difference. First operand 7017 states and 8065 transitions. Second operand has 28 states, 27 states have (on average 10.407407407407407) internal successors, (281), 28 states have internal predecessors, (281), 9 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 9 states have call predecessors, (10), 9 states have call successors, (10) [2023-11-29 07:15:33,655 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 07:15:33,655 INFO L93 Difference]: Finished difference Result 7133 states and 8176 transitions. [2023-11-29 07:15:33,656 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 60 states. [2023-11-29 07:15:33,656 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 27 states have (on average 10.407407407407407) internal successors, (281), 28 states have internal predecessors, (281), 9 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 9 states have call predecessors, (10), 9 states have call successors, (10) Word has length 170 [2023-11-29 07:15:33,656 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 07:15:33,662 INFO L225 Difference]: With dead ends: 7133 [2023-11-29 07:15:33,662 INFO L226 Difference]: Without dead ends: 7114 [2023-11-29 07:15:33,663 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 388 GetRequests, 312 SyntacticMatches, 0 SemanticMatches, 76 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1481 ImplicationChecksByTransitivity, 4.8s TimeCoverageRelationStatistics Valid=1210, Invalid=4796, Unknown=0, NotChecked=0, Total=6006 [2023-11-29 07:15:33,664 INFO L413 NwaCegarLoop]: 80 mSDtfsCounter, 551 mSDsluCounter, 886 mSDsCounter, 0 mSdLazyCounter, 2054 mSolverCounterSat, 66 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 552 SdHoareTripleChecker+Valid, 966 SdHoareTripleChecker+Invalid, 2120 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 66 IncrementalHoareTripleChecker+Valid, 2054 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2023-11-29 07:15:33,664 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [552 Valid, 966 Invalid, 2120 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [66 Valid, 2054 Invalid, 0 Unknown, 0 Unchecked, 3.2s Time] [2023-11-29 07:15:33,667 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7114 states. [2023-11-29 07:15:35,289 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7114 to 7054. [2023-11-29 07:15:35,293 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7054 states, 6819 states have (on average 1.1249450065992082) internal successors, (7671), 6834 states have internal predecessors, (7671), 217 states have call successors, (217), 2 states have call predecessors, (217), 2 states have return successors, (217), 217 states have call predecessors, (217), 217 states have call successors, (217) [2023-11-29 07:15:35,303 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7054 states to 7054 states and 8105 transitions. [2023-11-29 07:15:35,303 INFO L78 Accepts]: Start accepts. Automaton has 7054 states and 8105 transitions. Word has length 170 [2023-11-29 07:15:35,303 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 07:15:35,303 INFO L495 AbstractCegarLoop]: Abstraction has 7054 states and 8105 transitions. [2023-11-29 07:15:35,303 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 27 states have (on average 10.407407407407407) internal successors, (281), 28 states have internal predecessors, (281), 9 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 9 states have call predecessors, (10), 9 states have call successors, (10) [2023-11-29 07:15:35,303 INFO L276 IsEmpty]: Start isEmpty. Operand 7054 states and 8105 transitions. [2023-11-29 07:15:35,305 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2023-11-29 07:15:35,305 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 07:15:35,305 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 07:15:35,310 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2c6dc8-a580-46e1-b422-81b2f1468bab/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (96)] Ended with exit code 0 [2023-11-29 07:15:35,505 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable99,96 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2c6dc8-a580-46e1-b422-81b2f1468bab/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 07:15:35,506 INFO L420 AbstractCegarLoop]: === Iteration 101 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2023-11-29 07:15:35,506 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 07:15:35,506 INFO L85 PathProgramCache]: Analyzing trace with hash -1296761492, now seen corresponding path program 3 times [2023-11-29 07:15:35,506 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 07:15:35,506 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [109344063] [2023-11-29 07:15:35,506 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:15:35,506 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 07:15:35,516 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 07:15:35,516 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1116378966] [2023-11-29 07:15:35,516 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-11-29 07:15:35,516 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 07:15:35,517 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2c6dc8-a580-46e1-b422-81b2f1468bab/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 07:15:35,517 INFO L229 MonitoredProcess]: Starting monitored process 97 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2c6dc8-a580-46e1-b422-81b2f1468bab/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 07:15:35,519 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2c6dc8-a580-46e1-b422-81b2f1468bab/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (97)] Waiting until timeout for monitored process [2023-11-29 07:15:35,581 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2023-11-29 07:15:35,581 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 07:15:35,582 INFO L262 TraceCheckSpWp]: Trace formula consists of 122 conjuncts, 20 conjunts are in the unsatisfiable core [2023-11-29 07:15:35,585 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 07:15:36,122 INFO L134 CoverageAnalysis]: Checked inductivity of 266 backedges. 143 proven. 16 refuted. 0 times theorem prover too weak. 107 trivial. 0 not checked. [2023-11-29 07:15:36,122 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 07:15:36,646 INFO L134 CoverageAnalysis]: Checked inductivity of 266 backedges. 143 proven. 16 refuted. 0 times theorem prover too weak. 107 trivial. 0 not checked. [2023-11-29 07:15:36,646 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 07:15:36,646 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [109344063] [2023-11-29 07:15:36,646 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 07:15:36,646 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1116378966] [2023-11-29 07:15:36,646 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1116378966] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 07:15:36,647 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 07:15:36,647 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 18 [2023-11-29 07:15:36,647 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [313633255] [2023-11-29 07:15:36,647 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 07:15:36,648 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2023-11-29 07:15:36,648 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 07:15:36,648 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2023-11-29 07:15:36,648 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=296, Unknown=0, NotChecked=0, Total=342 [2023-11-29 07:15:36,648 INFO L87 Difference]: Start difference. First operand 7054 states and 8105 transitions. Second operand has 19 states, 18 states have (on average 8.0) internal successors, (144), 19 states have internal predecessors, (144), 3 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) [2023-11-29 07:15:45,474 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 07:15:46,938 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 07:15:46,938 INFO L93 Difference]: Finished difference Result 7167 states and 8225 transitions. [2023-11-29 07:15:46,938 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-11-29 07:15:46,938 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 18 states have (on average 8.0) internal successors, (144), 19 states have internal predecessors, (144), 3 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) Word has length 171 [2023-11-29 07:15:46,939 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 07:15:46,944 INFO L225 Difference]: With dead ends: 7167 [2023-11-29 07:15:46,944 INFO L226 Difference]: Without dead ends: 7166 [2023-11-29 07:15:46,945 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 353 GetRequests, 326 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 81 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=154, Invalid=658, Unknown=0, NotChecked=0, Total=812 [2023-11-29 07:15:46,946 INFO L413 NwaCegarLoop]: 25 mSDtfsCounter, 434 mSDsluCounter, 223 mSDsCounter, 0 mSdLazyCounter, 1007 mSolverCounterSat, 24 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 434 SdHoareTripleChecker+Valid, 248 SdHoareTripleChecker+Invalid, 1032 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 1007 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.0s IncrementalHoareTripleChecker+Time [2023-11-29 07:15:46,946 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [434 Valid, 248 Invalid, 1032 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 1007 Invalid, 1 Unknown, 0 Unchecked, 8.0s Time] [2023-11-29 07:15:46,949 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7166 states. [2023-11-29 07:15:48,617 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7166 to 7054. [2023-11-29 07:15:48,620 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7054 states, 6819 states have (on average 1.1123331866842645) internal successors, (7585), 6834 states have internal predecessors, (7585), 217 states have call successors, (217), 2 states have call predecessors, (217), 2 states have return successors, (217), 217 states have call predecessors, (217), 217 states have call successors, (217) [2023-11-29 07:15:48,630 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7054 states to 7054 states and 8019 transitions. [2023-11-29 07:15:48,630 INFO L78 Accepts]: Start accepts. Automaton has 7054 states and 8019 transitions. Word has length 171 [2023-11-29 07:15:48,630 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 07:15:48,631 INFO L495 AbstractCegarLoop]: Abstraction has 7054 states and 8019 transitions. [2023-11-29 07:15:48,631 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 18 states have (on average 8.0) internal successors, (144), 19 states have internal predecessors, (144), 3 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) [2023-11-29 07:15:48,631 INFO L276 IsEmpty]: Start isEmpty. Operand 7054 states and 8019 transitions. [2023-11-29 07:15:48,632 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2023-11-29 07:15:48,632 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 07:15:48,632 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 07:15:48,637 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2c6dc8-a580-46e1-b422-81b2f1468bab/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (97)] Ended with exit code 0 [2023-11-29 07:15:48,833 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 97 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2c6dc8-a580-46e1-b422-81b2f1468bab/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable100 [2023-11-29 07:15:48,833 INFO L420 AbstractCegarLoop]: === Iteration 102 === Targeting ULTIMATE.startErr37ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2023-11-29 07:15:48,833 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 07:15:48,833 INFO L85 PathProgramCache]: Analyzing trace with hash -185425719, now seen corresponding path program 5 times [2023-11-29 07:15:48,833 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 07:15:48,833 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [317449371] [2023-11-29 07:15:48,833 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:15:48,833 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 07:15:48,843 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 07:15:48,843 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [853604352] [2023-11-29 07:15:48,843 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2023-11-29 07:15:48,843 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 07:15:48,843 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2c6dc8-a580-46e1-b422-81b2f1468bab/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 07:15:48,844 INFO L229 MonitoredProcess]: Starting monitored process 98 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2c6dc8-a580-46e1-b422-81b2f1468bab/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 07:15:48,845 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2c6dc8-a580-46e1-b422-81b2f1468bab/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (98)] Waiting until timeout for monitored process [2023-11-29 07:15:49,070 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 5 check-sat command(s) [2023-11-29 07:15:49,070 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 07:15:49,072 INFO L262 TraceCheckSpWp]: Trace formula consists of 280 conjuncts, 16 conjunts are in the unsatisfiable core [2023-11-29 07:15:49,075 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 07:15:49,542 INFO L134 CoverageAnalysis]: Checked inductivity of 290 backedges. 0 proven. 246 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2023-11-29 07:15:49,542 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 07:15:49,687 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 07:15:49,688 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [317449371] [2023-11-29 07:15:49,688 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 07:15:49,688 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [853604352] [2023-11-29 07:15:49,688 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [853604352] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 07:15:49,688 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 07:15:49,688 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2023-11-29 07:15:49,688 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [213355915] [2023-11-29 07:15:49,688 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 07:15:49,689 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-11-29 07:15:49,689 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 07:15:49,689 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-11-29 07:15:49,689 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=180, Unknown=0, NotChecked=0, Total=240 [2023-11-29 07:15:49,689 INFO L87 Difference]: Start difference. First operand 7054 states and 8019 transitions. Second operand has 13 states, 12 states have (on average 12.5) internal successors, (150), 13 states have internal predecessors, (150), 6 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 6 states have call predecessors, (7), 6 states have call successors, (7) [2023-11-29 07:15:51,312 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 07:15:51,312 INFO L93 Difference]: Finished difference Result 7091 states and 8054 transitions. [2023-11-29 07:15:51,313 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-11-29 07:15:51,313 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 12.5) internal successors, (150), 13 states have internal predecessors, (150), 6 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 6 states have call predecessors, (7), 6 states have call successors, (7) Word has length 179 [2023-11-29 07:15:51,313 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 07:15:51,321 INFO L225 Difference]: With dead ends: 7091 [2023-11-29 07:15:51,321 INFO L226 Difference]: Without dead ends: 7090 [2023-11-29 07:15:51,322 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 221 GetRequests, 201 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=117, Invalid=345, Unknown=0, NotChecked=0, Total=462 [2023-11-29 07:15:51,323 INFO L413 NwaCegarLoop]: 120 mSDtfsCounter, 93 mSDsluCounter, 1072 mSDsCounter, 0 mSdLazyCounter, 436 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 93 SdHoareTripleChecker+Valid, 1192 SdHoareTripleChecker+Invalid, 436 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 436 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-29 07:15:51,323 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [93 Valid, 1192 Invalid, 436 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 436 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-29 07:15:51,327 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7090 states. [2023-11-29 07:15:52,996 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7090 to 7056. [2023-11-29 07:15:53,000 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7056 states, 6821 states have (on average 1.1123002492303182) internal successors, (7587), 6836 states have internal predecessors, (7587), 217 states have call successors, (217), 2 states have call predecessors, (217), 2 states have return successors, (217), 217 states have call predecessors, (217), 217 states have call successors, (217) [2023-11-29 07:15:53,009 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7056 states to 7056 states and 8021 transitions. [2023-11-29 07:15:53,009 INFO L78 Accepts]: Start accepts. Automaton has 7056 states and 8021 transitions. Word has length 179 [2023-11-29 07:15:53,010 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 07:15:53,010 INFO L495 AbstractCegarLoop]: Abstraction has 7056 states and 8021 transitions. [2023-11-29 07:15:53,010 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 12.5) internal successors, (150), 13 states have internal predecessors, (150), 6 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 6 states have call predecessors, (7), 6 states have call successors, (7) [2023-11-29 07:15:53,010 INFO L276 IsEmpty]: Start isEmpty. Operand 7056 states and 8021 transitions. [2023-11-29 07:15:53,011 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2023-11-29 07:15:53,011 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 07:15:53,011 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 07:15:53,016 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2c6dc8-a580-46e1-b422-81b2f1468bab/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (98)] Forceful destruction successful, exit code 0 [2023-11-29 07:15:53,211 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable101,98 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2c6dc8-a580-46e1-b422-81b2f1468bab/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 07:15:53,212 INFO L420 AbstractCegarLoop]: === Iteration 103 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2023-11-29 07:15:53,212 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 07:15:53,212 INFO L85 PathProgramCache]: Analyzing trace with hash -1144634580, now seen corresponding path program 4 times [2023-11-29 07:15:53,212 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 07:15:53,212 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [822423455] [2023-11-29 07:15:53,212 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:15:53,212 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 07:15:53,221 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 07:15:53,221 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1413730790] [2023-11-29 07:15:53,222 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2023-11-29 07:15:53,222 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 07:15:53,222 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2c6dc8-a580-46e1-b422-81b2f1468bab/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 07:15:53,223 INFO L229 MonitoredProcess]: Starting monitored process 99 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2c6dc8-a580-46e1-b422-81b2f1468bab/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 07:15:53,223 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2c6dc8-a580-46e1-b422-81b2f1468bab/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (99)] Waiting until timeout for monitored process [2023-11-29 07:15:53,309 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2023-11-29 07:15:53,309 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 07:15:53,311 INFO L262 TraceCheckSpWp]: Trace formula consists of 284 conjuncts, 16 conjunts are in the unsatisfiable core [2023-11-29 07:15:53,313 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 07:15:54,866 INFO L134 CoverageAnalysis]: Checked inductivity of 278 backedges. 71 proven. 178 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2023-11-29 07:15:54,866 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 07:15:59,426 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 07:15:59,426 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [822423455] [2023-11-29 07:15:59,426 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 07:15:59,426 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1413730790] [2023-11-29 07:15:59,426 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1413730790] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 07:15:59,426 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 07:15:59,427 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14] total 14 [2023-11-29 07:15:59,427 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [321522787] [2023-11-29 07:15:59,427 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 07:15:59,427 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2023-11-29 07:15:59,427 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 07:15:59,428 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2023-11-29 07:15:59,428 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=360, Unknown=1, NotChecked=0, Total=420 [2023-11-29 07:15:59,428 INFO L87 Difference]: Start difference. First operand 7056 states and 8021 transitions. Second operand has 15 states, 14 states have (on average 11.071428571428571) internal successors, (155), 15 states have internal predecessors, (155), 5 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 5 states have call predecessors, (6), 5 states have call successors, (6) [2023-11-29 07:16:04,391 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 07:16:04,391 INFO L93 Difference]: Finished difference Result 7233 states and 8195 transitions. [2023-11-29 07:16:04,392 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2023-11-29 07:16:04,392 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 11.071428571428571) internal successors, (155), 15 states have internal predecessors, (155), 5 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 5 states have call predecessors, (6), 5 states have call successors, (6) Word has length 179 [2023-11-29 07:16:04,392 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 07:16:04,399 INFO L225 Difference]: With dead ends: 7233 [2023-11-29 07:16:04,399 INFO L226 Difference]: Without dead ends: 7232 [2023-11-29 07:16:04,400 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 227 GetRequests, 192 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 190 ImplicationChecksByTransitivity, 6.6s TimeCoverageRelationStatistics Valid=281, Invalid=1050, Unknown=1, NotChecked=0, Total=1332 [2023-11-29 07:16:04,401 INFO L413 NwaCegarLoop]: 117 mSDtfsCounter, 323 mSDsluCounter, 679 mSDsCounter, 0 mSdLazyCounter, 1261 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 323 SdHoareTripleChecker+Valid, 796 SdHoareTripleChecker+Invalid, 1266 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 1261 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2023-11-29 07:16:04,401 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [323 Valid, 796 Invalid, 1266 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 1261 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2023-11-29 07:16:04,405 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7232 states. [2023-11-29 07:16:06,115 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7232 to 7056. [2023-11-29 07:16:06,118 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7056 states, 6821 states have (on average 1.10790206714558) internal successors, (7557), 6836 states have internal predecessors, (7557), 217 states have call successors, (217), 2 states have call predecessors, (217), 2 states have return successors, (217), 217 states have call predecessors, (217), 217 states have call successors, (217) [2023-11-29 07:16:06,127 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7056 states to 7056 states and 7991 transitions. [2023-11-29 07:16:06,128 INFO L78 Accepts]: Start accepts. Automaton has 7056 states and 7991 transitions. Word has length 179 [2023-11-29 07:16:06,128 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 07:16:06,128 INFO L495 AbstractCegarLoop]: Abstraction has 7056 states and 7991 transitions. [2023-11-29 07:16:06,128 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 11.071428571428571) internal successors, (155), 15 states have internal predecessors, (155), 5 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 5 states have call predecessors, (6), 5 states have call successors, (6) [2023-11-29 07:16:06,128 INFO L276 IsEmpty]: Start isEmpty. Operand 7056 states and 7991 transitions. [2023-11-29 07:16:06,129 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2023-11-29 07:16:06,129 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 07:16:06,129 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 07:16:06,134 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2c6dc8-a580-46e1-b422-81b2f1468bab/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (99)] Ended with exit code 0 [2023-11-29 07:16:06,330 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 99 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2c6dc8-a580-46e1-b422-81b2f1468bab/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable102 [2023-11-29 07:16:06,330 INFO L420 AbstractCegarLoop]: === Iteration 104 === Targeting ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2023-11-29 07:16:06,330 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 07:16:06,331 INFO L85 PathProgramCache]: Analyzing trace with hash -2099744371, now seen corresponding path program 2 times [2023-11-29 07:16:06,331 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 07:16:06,331 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [667353906] [2023-11-29 07:16:06,331 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:16:06,331 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 07:16:06,340 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 07:16:06,341 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1874358692] [2023-11-29 07:16:06,341 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-29 07:16:06,341 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 07:16:06,341 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2c6dc8-a580-46e1-b422-81b2f1468bab/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 07:16:06,342 INFO L229 MonitoredProcess]: Starting monitored process 100 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2c6dc8-a580-46e1-b422-81b2f1468bab/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 07:16:06,343 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2c6dc8-a580-46e1-b422-81b2f1468bab/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (100)] Waiting until timeout for monitored process [2023-11-29 07:16:06,424 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-29 07:16:06,424 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 07:16:06,426 INFO L262 TraceCheckSpWp]: Trace formula consists of 282 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-29 07:16:06,428 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 07:16:07,229 INFO L134 CoverageAnalysis]: Checked inductivity of 303 backedges. 0 proven. 259 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2023-11-29 07:16:07,229 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 07:16:07,611 INFO L134 CoverageAnalysis]: Checked inductivity of 303 backedges. 0 proven. 259 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2023-11-29 07:16:07,611 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 07:16:07,611 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [667353906] [2023-11-29 07:16:07,612 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 07:16:07,612 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1874358692] [2023-11-29 07:16:07,612 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1874358692] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 07:16:07,612 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 07:16:07,612 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 15 [2023-11-29 07:16:07,612 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [21197735] [2023-11-29 07:16:07,612 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 07:16:07,613 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-11-29 07:16:07,613 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 07:16:07,613 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-11-29 07:16:07,614 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=180, Unknown=0, NotChecked=0, Total=240 [2023-11-29 07:16:07,614 INFO L87 Difference]: Start difference. First operand 7056 states and 7991 transitions. Second operand has 16 states, 15 states have (on average 19.866666666666667) internal successors, (298), 16 states have internal predecessors, (298), 14 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2023-11-29 07:16:10,582 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 07:16:10,582 INFO L93 Difference]: Finished difference Result 8411 states and 9517 transitions. [2023-11-29 07:16:10,583 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2023-11-29 07:16:10,583 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 19.866666666666667) internal successors, (298), 16 states have internal predecessors, (298), 14 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) Word has length 181 [2023-11-29 07:16:10,583 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 07:16:10,591 INFO L225 Difference]: With dead ends: 8411 [2023-11-29 07:16:10,591 INFO L226 Difference]: Without dead ends: 8410 [2023-11-29 07:16:10,592 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 375 GetRequests, 346 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 175 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=326, Invalid=604, Unknown=0, NotChecked=0, Total=930 [2023-11-29 07:16:10,593 INFO L413 NwaCegarLoop]: 85 mSDtfsCounter, 1120 mSDsluCounter, 533 mSDsCounter, 0 mSdLazyCounter, 938 mSolverCounterSat, 61 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1121 SdHoareTripleChecker+Valid, 618 SdHoareTripleChecker+Invalid, 999 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 938 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-11-29 07:16:10,593 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1121 Valid, 618 Invalid, 999 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 938 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-11-29 07:16:10,597 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8410 states. [2023-11-29 07:16:12,449 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8410 to 7853. [2023-11-29 07:16:12,453 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7853 states, 7592 states have (on average 1.101949420442571) internal successors, (8366), 7607 states have internal predecessors, (8366), 243 states have call successors, (243), 2 states have call predecessors, (243), 2 states have return successors, (243), 243 states have call predecessors, (243), 243 states have call successors, (243) [2023-11-29 07:16:12,462 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7853 states to 7853 states and 8852 transitions. [2023-11-29 07:16:12,462 INFO L78 Accepts]: Start accepts. Automaton has 7853 states and 8852 transitions. Word has length 181 [2023-11-29 07:16:12,463 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 07:16:12,463 INFO L495 AbstractCegarLoop]: Abstraction has 7853 states and 8852 transitions. [2023-11-29 07:16:12,463 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 19.866666666666667) internal successors, (298), 16 states have internal predecessors, (298), 14 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2023-11-29 07:16:12,463 INFO L276 IsEmpty]: Start isEmpty. Operand 7853 states and 8852 transitions. [2023-11-29 07:16:12,464 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 186 [2023-11-29 07:16:12,464 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 07:16:12,464 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 07:16:12,469 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2c6dc8-a580-46e1-b422-81b2f1468bab/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (100)] Forceful destruction successful, exit code 0 [2023-11-29 07:16:12,665 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 100 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2c6dc8-a580-46e1-b422-81b2f1468bab/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable103 [2023-11-29 07:16:12,665 INFO L420 AbstractCegarLoop]: === Iteration 105 === Targeting ULTIMATE.startErr43ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2023-11-29 07:16:12,665 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 07:16:12,665 INFO L85 PathProgramCache]: Analyzing trace with hash 1488159183, now seen corresponding path program 2 times [2023-11-29 07:16:12,665 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 07:16:12,665 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1814448534] [2023-11-29 07:16:12,665 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:16:12,665 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 07:16:12,675 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 07:16:12,675 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [612079139] [2023-11-29 07:16:12,675 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-29 07:16:12,675 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 07:16:12,675 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2c6dc8-a580-46e1-b422-81b2f1468bab/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 07:16:12,676 INFO L229 MonitoredProcess]: Starting monitored process 101 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2c6dc8-a580-46e1-b422-81b2f1468bab/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 07:16:12,677 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2c6dc8-a580-46e1-b422-81b2f1468bab/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (101)] Waiting until timeout for monitored process [2023-11-29 07:16:12,761 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-29 07:16:12,762 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 07:16:12,763 INFO L262 TraceCheckSpWp]: Trace formula consists of 290 conjuncts, 19 conjunts are in the unsatisfiable core [2023-11-29 07:16:12,766 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 07:16:13,409 INFO L134 CoverageAnalysis]: Checked inductivity of 290 backedges. 0 proven. 246 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2023-11-29 07:16:13,410 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 07:16:14,069 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 07:16:14,069 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1814448534] [2023-11-29 07:16:14,069 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 07:16:14,069 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [612079139] [2023-11-29 07:16:14,069 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [612079139] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 07:16:14,069 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 07:16:14,069 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15] total 15 [2023-11-29 07:16:14,070 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [246642481] [2023-11-29 07:16:14,070 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 07:16:14,070 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-11-29 07:16:14,070 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 07:16:14,071 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-11-29 07:16:14,071 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=122, Invalid=430, Unknown=0, NotChecked=0, Total=552 [2023-11-29 07:16:14,071 INFO L87 Difference]: Start difference. First operand 7853 states and 8852 transitions. Second operand has 16 states, 15 states have (on average 10.4) internal successors, (156), 16 states have internal predecessors, (156), 6 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 6 states have call predecessors, (7), 6 states have call successors, (7) [2023-11-29 07:16:16,734 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 07:16:16,734 INFO L93 Difference]: Finished difference Result 7886 states and 8884 transitions. [2023-11-29 07:16:16,735 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2023-11-29 07:16:16,735 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 10.4) internal successors, (156), 16 states have internal predecessors, (156), 6 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 6 states have call predecessors, (7), 6 states have call successors, (7) Word has length 185 [2023-11-29 07:16:16,735 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 07:16:16,742 INFO L225 Difference]: With dead ends: 7886 [2023-11-29 07:16:16,742 INFO L226 Difference]: Without dead ends: 7885 [2023-11-29 07:16:16,743 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 273 GetRequests, 238 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 177 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=309, Invalid=1023, Unknown=0, NotChecked=0, Total=1332 [2023-11-29 07:16:16,744 INFO L413 NwaCegarLoop]: 111 mSDtfsCounter, 234 mSDsluCounter, 780 mSDsCounter, 0 mSdLazyCounter, 937 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 234 SdHoareTripleChecker+Valid, 891 SdHoareTripleChecker+Invalid, 941 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 937 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-11-29 07:16:16,744 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [234 Valid, 891 Invalid, 941 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 937 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-11-29 07:16:16,748 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7885 states. [2023-11-29 07:16:18,637 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7885 to 7859. [2023-11-29 07:16:18,640 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7859 states, 7598 states have (on average 1.1018689128718084) internal successors, (8372), 7613 states have internal predecessors, (8372), 243 states have call successors, (243), 2 states have call predecessors, (243), 2 states have return successors, (243), 243 states have call predecessors, (243), 243 states have call successors, (243) [2023-11-29 07:16:18,648 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7859 states to 7859 states and 8858 transitions. [2023-11-29 07:16:18,648 INFO L78 Accepts]: Start accepts. Automaton has 7859 states and 8858 transitions. Word has length 185 [2023-11-29 07:16:18,649 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 07:16:18,649 INFO L495 AbstractCegarLoop]: Abstraction has 7859 states and 8858 transitions. [2023-11-29 07:16:18,649 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 10.4) internal successors, (156), 16 states have internal predecessors, (156), 6 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 6 states have call predecessors, (7), 6 states have call successors, (7) [2023-11-29 07:16:18,649 INFO L276 IsEmpty]: Start isEmpty. Operand 7859 states and 8858 transitions. [2023-11-29 07:16:18,650 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 189 [2023-11-29 07:16:18,650 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 07:16:18,650 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 07:16:18,655 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2c6dc8-a580-46e1-b422-81b2f1468bab/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (101)] Forceful destruction successful, exit code 0 [2023-11-29 07:16:18,850 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable104,101 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2c6dc8-a580-46e1-b422-81b2f1468bab/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 07:16:18,851 INFO L420 AbstractCegarLoop]: === Iteration 106 === Targeting ULTIMATE.startErr46ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2023-11-29 07:16:18,851 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 07:16:18,851 INFO L85 PathProgramCache]: Analyzing trace with hash 1097940457, now seen corresponding path program 1 times [2023-11-29 07:16:18,851 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 07:16:18,851 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [859343808] [2023-11-29 07:16:18,851 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:16:18,851 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 07:16:18,861 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 07:16:18,861 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1312536185] [2023-11-29 07:16:18,861 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:16:18,862 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 07:16:18,862 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2c6dc8-a580-46e1-b422-81b2f1468bab/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 07:16:18,862 INFO L229 MonitoredProcess]: Starting monitored process 102 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2c6dc8-a580-46e1-b422-81b2f1468bab/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 07:16:18,863 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2c6dc8-a580-46e1-b422-81b2f1468bab/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (102)] Waiting until timeout for monitored process [2023-11-29 07:16:18,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:16:18,926 INFO L262 TraceCheckSpWp]: Trace formula consists of 293 conjuncts, 30 conjunts are in the unsatisfiable core [2023-11-29 07:16:18,928 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 07:16:21,265 INFO L134 CoverageAnalysis]: Checked inductivity of 290 backedges. 12 proven. 246 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2023-11-29 07:16:21,265 INFO L327 TraceCheckSpWp]: Computing backward predicates...