./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test4-3.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version e7bb482b 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_1d40f747-2e2c-45a2-b77e-10413bad3479/bin/uautomizer-verify-WvqO1wxjHP/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d40f747-2e2c-45a2-b77e-10413bad3479/bin/uautomizer-verify-WvqO1wxjHP/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d40f747-2e2c-45a2-b77e-10413bad3479/bin/uautomizer-verify-WvqO1wxjHP/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d40f747-2e2c-45a2-b77e-10413bad3479/bin/uautomizer-verify-WvqO1wxjHP/config/AutomizerReach.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test4-3.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d40f747-2e2c-45a2-b77e-10413bad3479/bin/uautomizer-verify-WvqO1wxjHP/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d40f747-2e2c-45a2-b77e-10413bad3479/bin/uautomizer-verify-WvqO1wxjHP --witnessprinter.witness.filename witness.graphml --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 c24ad121bcc9573550d02da9627a07166858762ae4177dec26b10c884148a83b --- Real Ultimate output --- This is Ultimate 0.2.3-dev-e7bb482 [2023-11-06 22:02:28,841 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-06 22:02:28,954 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d40f747-2e2c-45a2-b77e-10413bad3479/bin/uautomizer-verify-WvqO1wxjHP/config/svcomp-Overflow-32bit-Automizer_Default.epf [2023-11-06 22:02:28,965 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-06 22:02:28,967 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-06 22:02:29,002 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-06 22:02:29,005 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-06 22:02:29,005 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-06 22:02:29,006 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-06 22:02:29,011 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-06 22:02:29,012 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-06 22:02:29,013 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-06 22:02:29,013 INFO L153 SettingsManager]: * Use SBE=true [2023-11-06 22:02:29,015 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-06 22:02:29,016 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-06 22:02:29,016 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-06 22:02:29,017 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-06 22:02:29,017 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-06 22:02:29,018 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-06 22:02:29,018 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-06 22:02:29,019 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-06 22:02:29,019 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-06 22:02:29,020 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-06 22:02:29,020 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-06 22:02:29,021 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-06 22:02:29,021 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-06 22:02:29,022 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-06 22:02:29,023 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-06 22:02:29,023 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-06 22:02:29,024 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-06 22:02:29,025 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 22:02:29,025 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-06 22:02:29,026 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-06 22:02:29,026 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-11-06 22:02:29,026 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-06 22:02:29,026 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-06 22:02:29,027 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-06 22:02:29,027 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-06 22:02:29,028 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-06 22:02:29,028 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-06 22:02:29,029 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-06 22:02:29,029 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_1d40f747-2e2c-45a2-b77e-10413bad3479/bin/uautomizer-verify-WvqO1wxjHP/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d40f747-2e2c-45a2-b77e-10413bad3479/bin/uautomizer-verify-WvqO1wxjHP Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c24ad121bcc9573550d02da9627a07166858762ae4177dec26b10c884148a83b [2023-11-06 22:02:29,309 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-06 22:02:29,342 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-06 22:02:29,345 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-06 22:02:29,346 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-06 22:02:29,347 INFO L274 PluginConnector]: CDTParser initialized [2023-11-06 22:02:29,348 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d40f747-2e2c-45a2-b77e-10413bad3479/bin/uautomizer-verify-WvqO1wxjHP/../../sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test4-3.i [2023-11-06 22:02:32,484 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-06 22:02:32,894 INFO L384 CDTParser]: Found 1 translation units. [2023-11-06 22:02:32,895 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d40f747-2e2c-45a2-b77e-10413bad3479/sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test4-3.i [2023-11-06 22:02:32,915 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d40f747-2e2c-45a2-b77e-10413bad3479/bin/uautomizer-verify-WvqO1wxjHP/data/e623de743/fb42f4895ff242c5a6911e88afba72c3/FLAG29b08bbcf [2023-11-06 22:02:32,931 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d40f747-2e2c-45a2-b77e-10413bad3479/bin/uautomizer-verify-WvqO1wxjHP/data/e623de743/fb42f4895ff242c5a6911e88afba72c3 [2023-11-06 22:02:32,934 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-06 22:02:32,936 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-06 22:02:32,937 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-06 22:02:32,938 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-06 22:02:32,944 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-06 22:02:32,945 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:02:32" (1/1) ... [2023-11-06 22:02:32,946 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@406c8e0a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:02:32, skipping insertion in model container [2023-11-06 22:02:32,946 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:02:32" (1/1) ... [2023-11-06 22:02:33,039 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-06 22:02:33,734 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 22:02:33,751 INFO L202 MainTranslator]: Completed pre-run [2023-11-06 22:02:33,932 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 22:02:33,968 INFO L206 MainTranslator]: Completed translation [2023-11-06 22:02:33,969 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:02:33 WrapperNode [2023-11-06 22:02:33,969 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-06 22:02:33,970 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-06 22:02:33,970 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-06 22:02:33,970 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-06 22:02:33,978 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:02:33" (1/1) ... [2023-11-06 22:02:34,030 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:02:33" (1/1) ... [2023-11-06 22:02:34,162 INFO L138 Inliner]: procedures = 177, calls = 449, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 1817 [2023-11-06 22:02:34,163 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-06 22:02:34,164 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-06 22:02:34,164 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-06 22:02:34,164 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-06 22:02:34,174 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:02:33" (1/1) ... [2023-11-06 22:02:34,175 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:02:33" (1/1) ... [2023-11-06 22:02:34,198 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:02:33" (1/1) ... [2023-11-06 22:02:34,199 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:02:33" (1/1) ... [2023-11-06 22:02:34,299 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:02:33" (1/1) ... [2023-11-06 22:02:34,317 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:02:33" (1/1) ... [2023-11-06 22:02:34,324 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:02:33" (1/1) ... [2023-11-06 22:02:34,334 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:02:33" (1/1) ... [2023-11-06 22:02:34,349 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-06 22:02:34,350 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-06 22:02:34,351 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-06 22:02:34,351 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-06 22:02:34,352 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:02:33" (1/1) ... [2023-11-06 22:02:34,360 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 22:02:34,376 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d40f747-2e2c-45a2-b77e-10413bad3479/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:02:34,394 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d40f747-2e2c-45a2-b77e-10413bad3479/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-06 22:02:34,428 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d40f747-2e2c-45a2-b77e-10413bad3479/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-06 22:02:34,437 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-06 22:02:34,437 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-11-06 22:02:34,438 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-11-06 22:02:34,438 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-06 22:02:34,438 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2023-11-06 22:02:34,438 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2023-11-06 22:02:34,438 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-06 22:02:34,439 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-06 22:02:34,439 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-06 22:02:34,439 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-06 22:02:34,439 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-06 22:02:34,440 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-06 22:02:34,440 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-06 22:02:34,440 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-06 22:02:34,442 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-06 22:02:34,755 INFO L236 CfgBuilder]: Building ICFG [2023-11-06 22:02:34,757 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-06 22:02:36,958 INFO L277 CfgBuilder]: Performing block encoding [2023-11-06 22:02:36,970 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-06 22:02:36,971 INFO L302 CfgBuilder]: Removed 77 assume(true) statements. [2023-11-06 22:02:36,974 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:02:36 BoogieIcfgContainer [2023-11-06 22:02:36,974 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-06 22:02:36,976 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-06 22:02:36,976 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-06 22:02:36,980 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-06 22:02:36,980 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 10:02:32" (1/3) ... [2023-11-06 22:02:36,981 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@341b7f44 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 10:02:36, skipping insertion in model container [2023-11-06 22:02:36,981 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:02:33" (2/3) ... [2023-11-06 22:02:36,981 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@341b7f44 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 10:02:36, skipping insertion in model container [2023-11-06 22:02:36,981 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:02:36" (3/3) ... [2023-11-06 22:02:36,983 INFO L112 eAbstractionObserver]: Analyzing ICFG uthash_SFH_test4-3.i [2023-11-06 22:02:37,004 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-06 22:02:37,004 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2023-11-06 22:02:37,073 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-06 22:02:37,080 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=LoopsAndPotentialCycles, 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;@7f91d7bb, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-06 22:02:37,081 INFO L358 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2023-11-06 22:02:37,088 INFO L276 IsEmpty]: Start isEmpty. Operand has 453 states, 428 states have (on average 1.691588785046729) internal successors, (724), 444 states have internal predecessors, (724), 16 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 7 states have call predecessors, (16), 16 states have call successors, (16) [2023-11-06 22:02:37,094 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-11-06 22:02:37,095 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:02:37,095 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2023-11-06 22:02:37,096 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-11-06 22:02:37,101 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:02:37,101 INFO L85 PathProgramCache]: Analyzing trace with hash 1127677939, now seen corresponding path program 1 times [2023-11-06 22:02:37,112 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:02:37,112 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [251903317] [2023-11-06 22:02:37,112 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:02:37,113 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:02:37,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:02:37,357 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:02:37,357 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:02:37,358 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [251903317] [2023-11-06 22:02:37,359 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [251903317] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:02:37,359 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:02:37,359 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-06 22:02:37,361 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [178474921] [2023-11-06 22:02:37,362 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:02:37,366 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 22:02:37,367 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:02:37,408 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 22:02:37,410 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 22:02:37,416 INFO L87 Difference]: Start difference. First operand has 453 states, 428 states have (on average 1.691588785046729) internal successors, (724), 444 states have internal predecessors, (724), 16 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 7 states have call predecessors, (16), 16 states have call successors, (16) Second operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:02:37,678 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:02:37,678 INFO L93 Difference]: Finished difference Result 1248 states and 2108 transitions. [2023-11-06 22:02:37,679 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 22:02:37,681 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2023-11-06 22:02:37,681 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:02:37,707 INFO L225 Difference]: With dead ends: 1248 [2023-11-06 22:02:37,707 INFO L226 Difference]: Without dead ends: 732 [2023-11-06 22:02:37,715 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 22:02:37,719 INFO L413 NwaCegarLoop]: 707 mSDtfsCounter, 507 mSDsluCounter, 658 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 513 SdHoareTripleChecker+Valid, 1365 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-06 22:02:37,721 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [513 Valid, 1365 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-06 22:02:37,743 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 732 states. [2023-11-06 22:02:37,846 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 732 to 391. [2023-11-06 22:02:37,849 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 391 states, 368 states have (on average 1.502717391304348) internal successors, (553), 382 states have internal predecessors, (553), 16 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 7 states have call predecessors, (16), 16 states have call successors, (16) [2023-11-06 22:02:37,859 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 391 states to 391 states and 585 transitions. [2023-11-06 22:02:37,861 INFO L78 Accepts]: Start accepts. Automaton has 391 states and 585 transitions. Word has length 6 [2023-11-06 22:02:37,861 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:02:37,861 INFO L495 AbstractCegarLoop]: Abstraction has 391 states and 585 transitions. [2023-11-06 22:02:37,862 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:02:37,862 INFO L276 IsEmpty]: Start isEmpty. Operand 391 states and 585 transitions. [2023-11-06 22:02:37,881 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2023-11-06 22:02:37,882 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:02:37,883 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:02:37,883 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-06 22:02:37,885 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-11-06 22:02:37,885 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:02:37,885 INFO L85 PathProgramCache]: Analyzing trace with hash -530700334, now seen corresponding path program 1 times [2023-11-06 22:02:37,886 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:02:37,886 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1637774286] [2023-11-06 22:02:37,887 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:02:37,887 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:02:38,045 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-06 22:02:38,047 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [190557123] [2023-11-06 22:02:38,048 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:02:38,049 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:02:38,049 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d40f747-2e2c-45a2-b77e-10413bad3479/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:02:38,053 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d40f747-2e2c-45a2-b77e-10413bad3479/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 22:02:38,068 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d40f747-2e2c-45a2-b77e-10413bad3479/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-06 22:02:38,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:02:38,563 INFO L262 TraceCheckSpWp]: Trace formula consists of 732 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-06 22:02:38,576 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:02:38,643 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:02:38,643 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 22:02:38,644 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:02:38,644 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1637774286] [2023-11-06 22:02:38,644 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-06 22:02:38,645 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [190557123] [2023-11-06 22:02:38,645 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [190557123] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:02:38,645 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:02:38,645 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-06 22:02:38,646 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1439992158] [2023-11-06 22:02:38,646 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:02:38,650 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 22:02:38,650 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:02:38,651 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 22:02:38,651 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 22:02:38,652 INFO L87 Difference]: Start difference. First operand 391 states and 585 transitions. Second operand has 3 states, 3 states have (on average 50.333333333333336) internal successors, (151), 3 states have internal predecessors, (151), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:02:38,775 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:02:38,776 INFO L93 Difference]: Finished difference Result 796 states and 1194 transitions. [2023-11-06 22:02:38,776 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 22:02:38,777 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 50.333333333333336) internal successors, (151), 3 states have internal predecessors, (151), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 151 [2023-11-06 22:02:38,777 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:02:38,782 INFO L225 Difference]: With dead ends: 796 [2023-11-06 22:02:38,783 INFO L226 Difference]: Without dead ends: 412 [2023-11-06 22:02:38,789 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 150 GetRequests, 149 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 22:02:38,791 INFO L413 NwaCegarLoop]: 562 mSDtfsCounter, 8 mSDsluCounter, 545 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 1107 SdHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-06 22:02:38,792 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 1107 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-06 22:02:38,796 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 412 states. [2023-11-06 22:02:38,829 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 412 to 411. [2023-11-06 22:02:38,830 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 411 states, 388 states have (on average 1.4768041237113403) internal successors, (573), 402 states have internal predecessors, (573), 16 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 7 states have call predecessors, (16), 16 states have call successors, (16) [2023-11-06 22:02:38,835 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 411 states to 411 states and 605 transitions. [2023-11-06 22:02:38,835 INFO L78 Accepts]: Start accepts. Automaton has 411 states and 605 transitions. Word has length 151 [2023-11-06 22:02:38,836 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:02:38,836 INFO L495 AbstractCegarLoop]: Abstraction has 411 states and 605 transitions. [2023-11-06 22:02:38,836 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 50.333333333333336) internal successors, (151), 3 states have internal predecessors, (151), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:02:38,837 INFO L276 IsEmpty]: Start isEmpty. Operand 411 states and 605 transitions. [2023-11-06 22:02:38,848 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2023-11-06 22:02:38,848 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:02:38,849 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:02:38,862 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d40f747-2e2c-45a2-b77e-10413bad3479/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-06 22:02:39,057 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d40f747-2e2c-45a2-b77e-10413bad3479/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:02:39,057 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-11-06 22:02:39,058 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:02:39,058 INFO L85 PathProgramCache]: Analyzing trace with hash 175896272, now seen corresponding path program 1 times [2023-11-06 22:02:39,058 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:02:39,059 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [11928472] [2023-11-06 22:02:39,059 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:02:39,059 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:02:39,180 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-06 22:02:39,181 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [77308921] [2023-11-06 22:02:39,181 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:02:39,182 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:02:39,183 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d40f747-2e2c-45a2-b77e-10413bad3479/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:02:39,186 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d40f747-2e2c-45a2-b77e-10413bad3479/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 22:02:39,216 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d40f747-2e2c-45a2-b77e-10413bad3479/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-06 22:02:39,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:02:39,701 INFO L262 TraceCheckSpWp]: Trace formula consists of 734 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-06 22:02:39,709 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:02:39,728 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:02:39,729 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 22:02:39,729 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:02:39,729 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [11928472] [2023-11-06 22:02:39,729 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-06 22:02:39,730 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [77308921] [2023-11-06 22:02:39,730 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [77308921] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:02:39,730 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:02:39,730 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-06 22:02:39,731 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [932523654] [2023-11-06 22:02:39,731 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:02:39,732 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 22:02:39,732 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:02:39,733 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 22:02:39,733 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 22:02:39,733 INFO L87 Difference]: Start difference. First operand 411 states and 605 transitions. Second operand has 3 states, 3 states have (on average 50.333333333333336) internal successors, (151), 3 states have internal predecessors, (151), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:02:39,825 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:02:39,825 INFO L93 Difference]: Finished difference Result 836 states and 1234 transitions. [2023-11-06 22:02:39,826 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 22:02:39,826 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 50.333333333333336) internal successors, (151), 3 states have internal predecessors, (151), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 151 [2023-11-06 22:02:39,828 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:02:39,833 INFO L225 Difference]: With dead ends: 836 [2023-11-06 22:02:39,833 INFO L226 Difference]: Without dead ends: 432 [2023-11-06 22:02:39,834 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 150 GetRequests, 149 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 22:02:39,838 INFO L413 NwaCegarLoop]: 560 mSDtfsCounter, 9 mSDsluCounter, 545 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 1105 SdHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-06 22:02:39,839 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 1105 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-06 22:02:39,841 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 432 states. [2023-11-06 22:02:39,853 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 432 to 431. [2023-11-06 22:02:39,854 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 431 states, 408 states have (on average 1.4534313725490196) internal successors, (593), 422 states have internal predecessors, (593), 16 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 7 states have call predecessors, (16), 16 states have call successors, (16) [2023-11-06 22:02:39,857 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 431 states to 431 states and 625 transitions. [2023-11-06 22:02:39,858 INFO L78 Accepts]: Start accepts. Automaton has 431 states and 625 transitions. Word has length 151 [2023-11-06 22:02:39,859 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:02:39,859 INFO L495 AbstractCegarLoop]: Abstraction has 431 states and 625 transitions. [2023-11-06 22:02:39,859 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 50.333333333333336) internal successors, (151), 3 states have internal predecessors, (151), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:02:39,860 INFO L276 IsEmpty]: Start isEmpty. Operand 431 states and 625 transitions. [2023-11-06 22:02:39,862 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2023-11-06 22:02:39,862 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:02:39,863 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:02:39,868 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d40f747-2e2c-45a2-b77e-10413bad3479/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-11-06 22:02:40,064 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d40f747-2e2c-45a2-b77e-10413bad3479/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:02:40,065 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-11-06 22:02:40,065 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:02:40,065 INFO L85 PathProgramCache]: Analyzing trace with hash -503375982, now seen corresponding path program 1 times [2023-11-06 22:02:40,065 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:02:40,066 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1708034355] [2023-11-06 22:02:40,066 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:02:40,066 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:02:40,167 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-06 22:02:40,167 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1249714279] [2023-11-06 22:02:40,168 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:02:40,170 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:02:40,170 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d40f747-2e2c-45a2-b77e-10413bad3479/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:02:40,171 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d40f747-2e2c-45a2-b77e-10413bad3479/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 22:02:40,179 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d40f747-2e2c-45a2-b77e-10413bad3479/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-06 22:02:40,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:02:40,713 INFO L262 TraceCheckSpWp]: Trace formula consists of 736 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-06 22:02:40,727 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:02:40,781 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:02:40,782 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 22:02:40,782 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:02:40,782 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1708034355] [2023-11-06 22:02:40,782 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-06 22:02:40,783 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1249714279] [2023-11-06 22:02:40,783 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1249714279] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:02:40,783 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:02:40,783 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-06 22:02:40,784 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1503313987] [2023-11-06 22:02:40,784 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:02:40,784 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-06 22:02:40,785 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:02:40,785 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-06 22:02:40,786 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-06 22:02:40,786 INFO L87 Difference]: Start difference. First operand 431 states and 625 transitions. Second operand has 5 states, 5 states have (on average 30.2) internal successors, (151), 5 states have internal predecessors, (151), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:02:40,879 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:02:40,879 INFO L93 Difference]: Finished difference Result 842 states and 1230 transitions. [2023-11-06 22:02:40,880 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-06 22:02:40,880 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 30.2) internal successors, (151), 5 states have internal predecessors, (151), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 151 [2023-11-06 22:02:40,880 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:02:40,883 INFO L225 Difference]: With dead ends: 842 [2023-11-06 22:02:40,884 INFO L226 Difference]: Without dead ends: 418 [2023-11-06 22:02:40,885 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 150 GetRequests, 147 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-06 22:02:40,886 INFO L413 NwaCegarLoop]: 553 mSDtfsCounter, 169 mSDsluCounter, 952 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 169 SdHoareTripleChecker+Valid, 1505 SdHoareTripleChecker+Invalid, 69 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-06 22:02:40,886 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [169 Valid, 1505 Invalid, 69 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-06 22:02:40,888 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 418 states. [2023-11-06 22:02:40,898 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 418 to 417. [2023-11-06 22:02:40,900 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 417 states, 394 states have (on average 1.4517766497461928) internal successors, (572), 408 states have internal predecessors, (572), 16 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 7 states have call predecessors, (16), 16 states have call successors, (16) [2023-11-06 22:02:40,902 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 417 states to 417 states and 604 transitions. [2023-11-06 22:02:40,902 INFO L78 Accepts]: Start accepts. Automaton has 417 states and 604 transitions. Word has length 151 [2023-11-06 22:02:40,903 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:02:40,903 INFO L495 AbstractCegarLoop]: Abstraction has 417 states and 604 transitions. [2023-11-06 22:02:40,903 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 30.2) internal successors, (151), 5 states have internal predecessors, (151), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:02:40,903 INFO L276 IsEmpty]: Start isEmpty. Operand 417 states and 604 transitions. [2023-11-06 22:02:40,906 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2023-11-06 22:02:40,906 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:02:40,906 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:02:40,920 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d40f747-2e2c-45a2-b77e-10413bad3479/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-11-06 22:02:41,113 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d40f747-2e2c-45a2-b77e-10413bad3479/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable3 [2023-11-06 22:02:41,114 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-11-06 22:02:41,114 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:02:41,115 INFO L85 PathProgramCache]: Analyzing trace with hash -1305334752, now seen corresponding path program 1 times [2023-11-06 22:02:41,115 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:02:41,115 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [507843945] [2023-11-06 22:02:41,115 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:02:41,116 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:02:41,226 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-06 22:02:41,240 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [631687301] [2023-11-06 22:02:41,240 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:02:41,241 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:02:41,241 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d40f747-2e2c-45a2-b77e-10413bad3479/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:02:41,245 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d40f747-2e2c-45a2-b77e-10413bad3479/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 22:02:41,275 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d40f747-2e2c-45a2-b77e-10413bad3479/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-11-06 22:02:41,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:02:41,761 INFO L262 TraceCheckSpWp]: Trace formula consists of 722 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-06 22:02:41,767 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:02:41,819 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:02:41,819 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 22:02:41,819 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:02:41,819 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [507843945] [2023-11-06 22:02:41,819 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-06 22:02:41,820 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [631687301] [2023-11-06 22:02:41,820 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [631687301] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:02:41,820 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:02:41,820 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-06 22:02:41,820 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2028733932] [2023-11-06 22:02:41,821 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:02:41,821 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-06 22:02:41,821 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:02:41,822 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-06 22:02:41,822 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-06 22:02:41,823 INFO L87 Difference]: Start difference. First operand 417 states and 604 transitions. Second operand has 5 states, 5 states have (on average 30.2) internal successors, (151), 5 states have internal predecessors, (151), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:02:41,991 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:02:41,991 INFO L93 Difference]: Finished difference Result 937 states and 1370 transitions. [2023-11-06 22:02:41,992 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-06 22:02:41,992 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 30.2) internal successors, (151), 5 states have internal predecessors, (151), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 151 [2023-11-06 22:02:41,992 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:02:41,996 INFO L225 Difference]: With dead ends: 937 [2023-11-06 22:02:41,996 INFO L226 Difference]: Without dead ends: 527 [2023-11-06 22:02:41,997 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 150 GetRequests, 147 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-06 22:02:41,998 INFO L413 NwaCegarLoop]: 556 mSDtfsCounter, 143 mSDsluCounter, 1639 mSDsCounter, 0 mSdLazyCounter, 94 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 143 SdHoareTripleChecker+Valid, 2195 SdHoareTripleChecker+Invalid, 117 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 94 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-06 22:02:41,999 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [143 Valid, 2195 Invalid, 117 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 94 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-06 22:02:42,000 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 527 states. [2023-11-06 22:02:42,013 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 527 to 440. [2023-11-06 22:02:42,014 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 440 states, 417 states have (on average 1.4316546762589928) internal successors, (597), 431 states have internal predecessors, (597), 16 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 7 states have call predecessors, (16), 16 states have call successors, (16) [2023-11-06 22:02:42,017 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 440 states to 440 states and 629 transitions. [2023-11-06 22:02:42,017 INFO L78 Accepts]: Start accepts. Automaton has 440 states and 629 transitions. Word has length 151 [2023-11-06 22:02:42,018 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:02:42,018 INFO L495 AbstractCegarLoop]: Abstraction has 440 states and 629 transitions. [2023-11-06 22:02:42,018 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 30.2) internal successors, (151), 5 states have internal predecessors, (151), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:02:42,018 INFO L276 IsEmpty]: Start isEmpty. Operand 440 states and 629 transitions. [2023-11-06 22:02:42,021 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2023-11-06 22:02:42,021 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:02:42,021 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:02:42,034 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d40f747-2e2c-45a2-b77e-10413bad3479/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-11-06 22:02:42,228 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d40f747-2e2c-45a2-b77e-10413bad3479/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:02:42,229 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-11-06 22:02:42,229 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:02:42,229 INFO L85 PathProgramCache]: Analyzing trace with hash -1237626330, now seen corresponding path program 1 times [2023-11-06 22:02:42,230 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:02:42,230 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [711109575] [2023-11-06 22:02:42,230 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:02:42,230 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:02:42,314 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-06 22:02:42,314 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [348667462] [2023-11-06 22:02:42,314 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:02:42,314 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:02:42,315 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d40f747-2e2c-45a2-b77e-10413bad3479/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:02:42,316 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d40f747-2e2c-45a2-b77e-10413bad3479/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 22:02:42,336 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d40f747-2e2c-45a2-b77e-10413bad3479/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-11-06 22:02:42,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:02:42,881 INFO L262 TraceCheckSpWp]: Trace formula consists of 716 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-06 22:02:42,886 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:02:42,931 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:02:42,931 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 22:02:42,932 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:02:42,932 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [711109575] [2023-11-06 22:02:42,932 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-06 22:02:42,932 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [348667462] [2023-11-06 22:02:42,932 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [348667462] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:02:42,932 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:02:42,933 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-06 22:02:42,933 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1970441653] [2023-11-06 22:02:42,933 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:02:42,933 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-06 22:02:42,934 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:02:42,934 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-06 22:02:42,935 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-06 22:02:42,935 INFO L87 Difference]: Start difference. First operand 440 states and 629 transitions. Second operand has 4 states, 4 states have (on average 37.75) internal successors, (151), 4 states have internal predecessors, (151), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:02:43,045 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:02:43,045 INFO L93 Difference]: Finished difference Result 805 states and 1151 transitions. [2023-11-06 22:02:43,045 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-06 22:02:43,046 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 37.75) internal successors, (151), 4 states have internal predecessors, (151), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 151 [2023-11-06 22:02:43,046 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:02:43,049 INFO L225 Difference]: With dead ends: 805 [2023-11-06 22:02:43,049 INFO L226 Difference]: Without dead ends: 372 [2023-11-06 22:02:43,050 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 151 GetRequests, 148 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-06 22:02:43,051 INFO L413 NwaCegarLoop]: 486 mSDtfsCounter, 78 mSDsluCounter, 887 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 78 SdHoareTripleChecker+Valid, 1373 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-06 22:02:43,051 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [78 Valid, 1373 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-06 22:02:43,053 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 372 states. [2023-11-06 22:02:43,063 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 372 to 372. [2023-11-06 22:02:43,064 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 372 states, 349 states have (on average 1.4183381088825215) internal successors, (495), 363 states have internal predecessors, (495), 16 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 7 states have call predecessors, (16), 16 states have call successors, (16) [2023-11-06 22:02:43,066 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 372 states to 372 states and 527 transitions. [2023-11-06 22:02:43,066 INFO L78 Accepts]: Start accepts. Automaton has 372 states and 527 transitions. Word has length 151 [2023-11-06 22:02:43,067 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:02:43,067 INFO L495 AbstractCegarLoop]: Abstraction has 372 states and 527 transitions. [2023-11-06 22:02:43,067 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 37.75) internal successors, (151), 4 states have internal predecessors, (151), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:02:43,067 INFO L276 IsEmpty]: Start isEmpty. Operand 372 states and 527 transitions. [2023-11-06 22:02:43,069 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2023-11-06 22:02:43,069 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:02:43,070 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:02:43,080 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d40f747-2e2c-45a2-b77e-10413bad3479/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-11-06 22:02:43,277 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d40f747-2e2c-45a2-b77e-10413bad3479/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:02:43,278 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-11-06 22:02:43,278 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:02:43,278 INFO L85 PathProgramCache]: Analyzing trace with hash -598738146, now seen corresponding path program 1 times [2023-11-06 22:02:43,278 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:02:43,278 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1503721156] [2023-11-06 22:02:43,278 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:02:43,279 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:02:43,362 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-06 22:02:43,362 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [442831596] [2023-11-06 22:02:43,362 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:02:43,362 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:02:43,363 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d40f747-2e2c-45a2-b77e-10413bad3479/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:02:43,364 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d40f747-2e2c-45a2-b77e-10413bad3479/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 22:02:43,373 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d40f747-2e2c-45a2-b77e-10413bad3479/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-11-06 22:02:43,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:02:43,902 INFO L262 TraceCheckSpWp]: Trace formula consists of 724 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-06 22:02:43,907 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:02:43,924 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:02:43,924 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 22:02:43,925 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:02:43,925 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1503721156] [2023-11-06 22:02:43,925 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-06 22:02:43,925 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [442831596] [2023-11-06 22:02:43,925 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [442831596] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:02:43,925 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:02:43,925 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-06 22:02:43,926 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [264107934] [2023-11-06 22:02:43,926 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:02:43,926 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-06 22:02:43,927 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:02:43,927 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-06 22:02:43,927 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-06 22:02:43,928 INFO L87 Difference]: Start difference. First operand 372 states and 527 transitions. Second operand has 4 states, 4 states have (on average 37.75) internal successors, (151), 4 states have internal predecessors, (151), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:02:44,030 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:02:44,030 INFO L93 Difference]: Finished difference Result 724 states and 1034 transitions. [2023-11-06 22:02:44,031 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-06 22:02:44,031 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 37.75) internal successors, (151), 4 states have internal predecessors, (151), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 151 [2023-11-06 22:02:44,031 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:02:44,034 INFO L225 Difference]: With dead ends: 724 [2023-11-06 22:02:44,034 INFO L226 Difference]: Without dead ends: 359 [2023-11-06 22:02:44,035 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 151 GetRequests, 148 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-06 22:02:44,036 INFO L413 NwaCegarLoop]: 475 mSDtfsCounter, 165 mSDsluCounter, 796 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 165 SdHoareTripleChecker+Valid, 1271 SdHoareTripleChecker+Invalid, 60 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 43 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-06 22:02:44,036 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [165 Valid, 1271 Invalid, 60 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-06 22:02:44,037 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 359 states. [2023-11-06 22:02:44,047 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 359 to 358. [2023-11-06 22:02:44,048 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 358 states, 335 states have (on average 1.4149253731343283) internal successors, (474), 349 states have internal predecessors, (474), 16 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 7 states have call predecessors, (16), 16 states have call successors, (16) [2023-11-06 22:02:44,050 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 358 states to 358 states and 506 transitions. [2023-11-06 22:02:44,050 INFO L78 Accepts]: Start accepts. Automaton has 358 states and 506 transitions. Word has length 151 [2023-11-06 22:02:44,050 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:02:44,052 INFO L495 AbstractCegarLoop]: Abstraction has 358 states and 506 transitions. [2023-11-06 22:02:44,053 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 37.75) internal successors, (151), 4 states have internal predecessors, (151), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:02:44,053 INFO L276 IsEmpty]: Start isEmpty. Operand 358 states and 506 transitions. [2023-11-06 22:02:44,056 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2023-11-06 22:02:44,056 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:02:44,056 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:02:44,069 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d40f747-2e2c-45a2-b77e-10413bad3479/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2023-11-06 22:02:44,264 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d40f747-2e2c-45a2-b77e-10413bad3479/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:02:44,264 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-11-06 22:02:44,264 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:02:44,265 INFO L85 PathProgramCache]: Analyzing trace with hash 924341712, now seen corresponding path program 1 times [2023-11-06 22:02:44,265 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:02:44,265 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [362068224] [2023-11-06 22:02:44,265 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:02:44,265 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:02:44,369 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-06 22:02:44,369 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [50803319] [2023-11-06 22:02:44,370 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:02:44,370 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:02:44,385 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d40f747-2e2c-45a2-b77e-10413bad3479/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:02:44,391 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d40f747-2e2c-45a2-b77e-10413bad3479/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 22:02:44,397 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d40f747-2e2c-45a2-b77e-10413bad3479/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-11-06 22:02:44,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:02:44,947 INFO L262 TraceCheckSpWp]: Trace formula consists of 710 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-06 22:02:44,953 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:02:45,245 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:02:45,245 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 22:02:45,245 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:02:45,246 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [362068224] [2023-11-06 22:02:45,246 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-06 22:02:45,246 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [50803319] [2023-11-06 22:02:45,246 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [50803319] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:02:45,246 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:02:45,247 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-06 22:02:45,247 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [840368749] [2023-11-06 22:02:45,247 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:02:45,248 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-06 22:02:45,248 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:02:45,248 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-06 22:02:45,249 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-06 22:02:45,249 INFO L87 Difference]: Start difference. First operand 358 states and 506 transitions. Second operand has 4 states, 3 states have (on average 50.333333333333336) internal successors, (151), 4 states have internal predecessors, (151), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:02:45,293 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:02:45,294 INFO L93 Difference]: Finished difference Result 358 states and 506 transitions. [2023-11-06 22:02:45,294 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-06 22:02:45,295 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 50.333333333333336) internal successors, (151), 4 states have internal predecessors, (151), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 151 [2023-11-06 22:02:45,295 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:02:45,298 INFO L225 Difference]: With dead ends: 358 [2023-11-06 22:02:45,298 INFO L226 Difference]: Without dead ends: 357 [2023-11-06 22:02:45,298 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 151 GetRequests, 148 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-06 22:02:45,299 INFO L413 NwaCegarLoop]: 484 mSDtfsCounter, 307 mSDsluCounter, 507 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 323 SdHoareTripleChecker+Valid, 991 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-06 22:02:45,300 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [323 Valid, 991 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-06 22:02:45,301 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 357 states. [2023-11-06 22:02:45,312 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 357 to 357. [2023-11-06 22:02:45,314 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 357 states, 335 states have (on average 1.4119402985074627) internal successors, (473), 348 states have internal predecessors, (473), 16 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 7 states have call predecessors, (16), 16 states have call successors, (16) [2023-11-06 22:02:45,316 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 357 states to 357 states and 505 transitions. [2023-11-06 22:02:45,316 INFO L78 Accepts]: Start accepts. Automaton has 357 states and 505 transitions. Word has length 151 [2023-11-06 22:02:45,317 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:02:45,317 INFO L495 AbstractCegarLoop]: Abstraction has 357 states and 505 transitions. [2023-11-06 22:02:45,317 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 50.333333333333336) internal successors, (151), 4 states have internal predecessors, (151), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:02:45,317 INFO L276 IsEmpty]: Start isEmpty. Operand 357 states and 505 transitions. [2023-11-06 22:02:45,319 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2023-11-06 22:02:45,320 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:02:45,320 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:02:45,329 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d40f747-2e2c-45a2-b77e-10413bad3479/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2023-11-06 22:02:45,528 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d40f747-2e2c-45a2-b77e-10413bad3479/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:02:45,529 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-11-06 22:02:45,529 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:02:45,530 INFO L85 PathProgramCache]: Analyzing trace with hash -1410176535, now seen corresponding path program 1 times [2023-11-06 22:02:45,530 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:02:45,530 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [454644288] [2023-11-06 22:02:45,530 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:02:45,530 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:02:45,610 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-06 22:02:45,611 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [927406278] [2023-11-06 22:02:45,611 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:02:45,611 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:02:45,612 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d40f747-2e2c-45a2-b77e-10413bad3479/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:02:45,613 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d40f747-2e2c-45a2-b77e-10413bad3479/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 22:02:45,644 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d40f747-2e2c-45a2-b77e-10413bad3479/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2023-11-06 22:02:46,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:02:46,215 INFO L262 TraceCheckSpWp]: Trace formula consists of 711 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-06 22:02:46,219 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:02:46,471 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:02:46,471 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 22:02:46,471 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:02:46,472 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [454644288] [2023-11-06 22:02:46,472 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-06 22:02:46,472 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [927406278] [2023-11-06 22:02:46,472 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [927406278] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:02:46,472 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:02:46,473 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-06 22:02:46,476 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1364669734] [2023-11-06 22:02:46,476 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:02:46,477 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-06 22:02:46,477 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:02:46,478 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-06 22:02:46,478 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-06 22:02:46,479 INFO L87 Difference]: Start difference. First operand 357 states and 505 transitions. Second operand has 4 states, 3 states have (on average 50.666666666666664) internal successors, (152), 4 states have internal predecessors, (152), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:02:46,564 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:02:46,565 INFO L93 Difference]: Finished difference Result 664 states and 940 transitions. [2023-11-06 22:02:46,565 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-06 22:02:46,566 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 50.666666666666664) internal successors, (152), 4 states have internal predecessors, (152), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 152 [2023-11-06 22:02:46,566 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:02:46,571 INFO L225 Difference]: With dead ends: 664 [2023-11-06 22:02:46,571 INFO L226 Difference]: Without dead ends: 663 [2023-11-06 22:02:46,572 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 152 GetRequests, 149 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-06 22:02:46,573 INFO L413 NwaCegarLoop]: 571 mSDtfsCounter, 273 mSDsluCounter, 1055 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 279 SdHoareTripleChecker+Valid, 1626 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-06 22:02:46,573 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [279 Valid, 1626 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-06 22:02:46,575 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 663 states. [2023-11-06 22:02:46,604 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 663 to 663. [2023-11-06 22:02:46,605 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 663 states, 635 states have (on average 1.4094488188976377) internal successors, (895), 648 states have internal predecessors, (895), 22 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (22), 13 states have call predecessors, (22), 22 states have call successors, (22) [2023-11-06 22:02:46,609 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 663 states to 663 states and 939 transitions. [2023-11-06 22:02:46,609 INFO L78 Accepts]: Start accepts. Automaton has 663 states and 939 transitions. Word has length 152 [2023-11-06 22:02:46,610 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:02:46,610 INFO L495 AbstractCegarLoop]: Abstraction has 663 states and 939 transitions. [2023-11-06 22:02:46,610 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 50.666666666666664) internal successors, (152), 4 states have internal predecessors, (152), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:02:46,611 INFO L276 IsEmpty]: Start isEmpty. Operand 663 states and 939 transitions. [2023-11-06 22:02:46,613 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2023-11-06 22:02:46,613 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:02:46,613 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:02:46,623 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d40f747-2e2c-45a2-b77e-10413bad3479/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2023-11-06 22:02:46,822 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d40f747-2e2c-45a2-b77e-10413bad3479/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:02:46,822 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-11-06 22:02:46,822 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:02:46,823 INFO L85 PathProgramCache]: Analyzing trace with hash 932477338, now seen corresponding path program 1 times [2023-11-06 22:02:46,823 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:02:46,823 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1541755745] [2023-11-06 22:02:46,823 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:02:46,823 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:02:46,901 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-06 22:02:46,901 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [139143969] [2023-11-06 22:02:46,901 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:02:46,901 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:02:46,901 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d40f747-2e2c-45a2-b77e-10413bad3479/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:02:46,902 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d40f747-2e2c-45a2-b77e-10413bad3479/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 22:02:46,906 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d40f747-2e2c-45a2-b77e-10413bad3479/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2023-11-06 22:02:47,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:02:47,457 INFO L262 TraceCheckSpWp]: Trace formula consists of 734 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-06 22:02:47,462 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:02:47,692 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:02:47,693 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-06 22:02:47,952 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:02:47,952 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:02:47,952 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1541755745] [2023-11-06 22:02:47,952 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-06 22:02:47,953 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [139143969] [2023-11-06 22:02:47,953 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [139143969] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-06 22:02:47,954 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-06 22:02:47,954 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2023-11-06 22:02:47,954 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1131012425] [2023-11-06 22:02:47,954 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-06 22:02:47,956 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-06 22:02:47,956 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:02:47,957 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-06 22:02:47,958 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2023-11-06 22:02:47,958 INFO L87 Difference]: Start difference. First operand 663 states and 939 transitions. Second operand has 8 states, 8 states have (on average 38.5) internal successors, (308), 8 states have internal predecessors, (308), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:02:48,157 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:02:48,157 INFO L93 Difference]: Finished difference Result 1009 states and 1435 transitions. [2023-11-06 22:02:48,158 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-06 22:02:48,158 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 38.5) internal successors, (308), 8 states have internal predecessors, (308), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 156 [2023-11-06 22:02:48,158 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:02:48,164 INFO L225 Difference]: With dead ends: 1009 [2023-11-06 22:02:48,165 INFO L226 Difference]: Without dead ends: 975 [2023-11-06 22:02:48,165 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 312 GetRequests, 304 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=35, Invalid=55, Unknown=0, NotChecked=0, Total=90 [2023-11-06 22:02:48,166 INFO L413 NwaCegarLoop]: 574 mSDtfsCounter, 1346 mSDsluCounter, 2010 mSDsCounter, 0 mSdLazyCounter, 61 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1364 SdHoareTripleChecker+Valid, 2584 SdHoareTripleChecker+Invalid, 70 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 61 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-06 22:02:48,167 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1364 Valid, 2584 Invalid, 70 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 61 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-06 22:02:48,169 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 975 states. [2023-11-06 22:02:48,198 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 975 to 975. [2023-11-06 22:02:48,200 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 975 states, 941 states have (on average 1.4070138150903295) internal successors, (1324), 954 states have internal predecessors, (1324), 28 states have call successors, (28), 2 states have call predecessors, (28), 2 states have return successors, (28), 19 states have call predecessors, (28), 28 states have call successors, (28) [2023-11-06 22:02:48,205 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 975 states to 975 states and 1380 transitions. [2023-11-06 22:02:48,206 INFO L78 Accepts]: Start accepts. Automaton has 975 states and 1380 transitions. Word has length 156 [2023-11-06 22:02:48,206 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:02:48,206 INFO L495 AbstractCegarLoop]: Abstraction has 975 states and 1380 transitions. [2023-11-06 22:02:48,206 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 38.5) internal successors, (308), 8 states have internal predecessors, (308), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:02:48,207 INFO L276 IsEmpty]: Start isEmpty. Operand 975 states and 1380 transitions. [2023-11-06 22:02:48,209 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2023-11-06 22:02:48,209 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:02:48,209 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:02:48,225 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d40f747-2e2c-45a2-b77e-10413bad3479/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2023-11-06 22:02:48,417 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d40f747-2e2c-45a2-b77e-10413bad3479/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:02:48,418 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-11-06 22:02:48,418 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:02:48,418 INFO L85 PathProgramCache]: Analyzing trace with hash -1199721173, now seen corresponding path program 1 times [2023-11-06 22:02:48,419 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:02:48,419 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [791559696] [2023-11-06 22:02:48,419 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:02:48,419 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:02:48,516 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-06 22:02:48,522 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1050534081] [2023-11-06 22:02:48,522 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:02:48,522 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:02:48,523 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d40f747-2e2c-45a2-b77e-10413bad3479/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:02:48,524 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d40f747-2e2c-45a2-b77e-10413bad3479/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 22:02:48,559 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d40f747-2e2c-45a2-b77e-10413bad3479/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2023-11-06 22:02:49,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:02:49,112 INFO L262 TraceCheckSpWp]: Trace formula consists of 741 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-06 22:02:49,117 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:02:49,711 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:02:49,711 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 22:02:49,711 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:02:49,711 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [791559696] [2023-11-06 22:02:49,712 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-06 22:02:49,712 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1050534081] [2023-11-06 22:02:49,712 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1050534081] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:02:49,712 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:02:49,712 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-06 22:02:49,713 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1381393027] [2023-11-06 22:02:49,714 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:02:49,714 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 22:02:49,715 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:02:49,716 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 22:02:49,716 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 22:02:49,716 INFO L87 Difference]: Start difference. First operand 975 states and 1380 transitions. Second operand has 3 states, 3 states have (on average 52.333333333333336) internal successors, (157), 3 states have internal predecessors, (157), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:02:49,820 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:02:49,821 INFO L93 Difference]: Finished difference Result 1688 states and 2388 transitions. [2023-11-06 22:02:49,822 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 22:02:49,822 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 52.333333333333336) internal successors, (157), 3 states have internal predecessors, (157), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 157 [2023-11-06 22:02:49,823 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:02:49,830 INFO L225 Difference]: With dead ends: 1688 [2023-11-06 22:02:49,831 INFO L226 Difference]: Without dead ends: 973 [2023-11-06 22:02:49,832 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 156 GetRequests, 155 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 22:02:49,833 INFO L413 NwaCegarLoop]: 493 mSDtfsCounter, 223 mSDsluCounter, 477 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 228 SdHoareTripleChecker+Valid, 970 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-06 22:02:49,833 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [228 Valid, 970 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-06 22:02:49,835 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 973 states. [2023-11-06 22:02:49,865 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 973 to 973. [2023-11-06 22:02:49,867 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 973 states, 939 states have (on average 1.4068157614483494) internal successors, (1321), 952 states have internal predecessors, (1321), 28 states have call successors, (28), 2 states have call predecessors, (28), 2 states have return successors, (28), 19 states have call predecessors, (28), 28 states have call successors, (28) [2023-11-06 22:02:49,873 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 973 states to 973 states and 1377 transitions. [2023-11-06 22:02:49,873 INFO L78 Accepts]: Start accepts. Automaton has 973 states and 1377 transitions. Word has length 157 [2023-11-06 22:02:49,874 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:02:49,874 INFO L495 AbstractCegarLoop]: Abstraction has 973 states and 1377 transitions. [2023-11-06 22:02:49,874 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 52.333333333333336) internal successors, (157), 3 states have internal predecessors, (157), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:02:49,875 INFO L276 IsEmpty]: Start isEmpty. Operand 973 states and 1377 transitions. [2023-11-06 22:02:49,879 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2023-11-06 22:02:49,879 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:02:49,880 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:02:49,893 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d40f747-2e2c-45a2-b77e-10413bad3479/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2023-11-06 22:02:50,088 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d40f747-2e2c-45a2-b77e-10413bad3479/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:02:50,088 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-11-06 22:02:50,089 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:02:50,089 INFO L85 PathProgramCache]: Analyzing trace with hash 1013033934, now seen corresponding path program 1 times [2023-11-06 22:02:50,089 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:02:50,089 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [19169959] [2023-11-06 22:02:50,090 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:02:50,090 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:02:50,185 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-06 22:02:50,185 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1573236632] [2023-11-06 22:02:50,185 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:02:50,185 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:02:50,186 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d40f747-2e2c-45a2-b77e-10413bad3479/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:02:50,187 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d40f747-2e2c-45a2-b77e-10413bad3479/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 22:02:50,210 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d40f747-2e2c-45a2-b77e-10413bad3479/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2023-11-06 22:02:50,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:02:50,850 INFO L262 TraceCheckSpWp]: Trace formula consists of 888 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-06 22:02:50,855 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:02:51,083 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-06 22:02:51,084 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 22:02:51,084 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:02:51,084 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [19169959] [2023-11-06 22:02:51,084 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-06 22:02:51,085 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1573236632] [2023-11-06 22:02:51,085 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1573236632] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:02:51,085 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:02:51,085 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-06 22:02:51,085 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [271507426] [2023-11-06 22:02:51,086 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:02:51,086 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 22:02:51,086 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:02:51,088 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 22:02:51,088 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 22:02:51,089 INFO L87 Difference]: Start difference. First operand 973 states and 1377 transitions. Second operand has 3 states, 3 states have (on average 55.0) internal successors, (165), 3 states have internal predecessors, (165), 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) [2023-11-06 22:02:51,171 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:02:51,171 INFO L93 Difference]: Finished difference Result 1858 states and 2636 transitions. [2023-11-06 22:02:51,173 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 22:02:51,173 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 55.0) internal successors, (165), 3 states have internal predecessors, (165), 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 172 [2023-11-06 22:02:51,173 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:02:51,180 INFO L225 Difference]: With dead ends: 1858 [2023-11-06 22:02:51,180 INFO L226 Difference]: Without dead ends: 971 [2023-11-06 22:02:51,184 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 171 GetRequests, 170 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 22:02:51,186 INFO L413 NwaCegarLoop]: 493 mSDtfsCounter, 52 mSDsluCounter, 478 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 54 SdHoareTripleChecker+Valid, 971 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-06 22:02:51,186 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [54 Valid, 971 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-06 22:02:51,188 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 971 states. [2023-11-06 22:02:51,247 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 971 to 971. [2023-11-06 22:02:51,251 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 971 states, 937 states have (on average 1.4066168623265742) internal successors, (1318), 950 states have internal predecessors, (1318), 28 states have call successors, (28), 2 states have call predecessors, (28), 2 states have return successors, (28), 19 states have call predecessors, (28), 28 states have call successors, (28) [2023-11-06 22:02:51,257 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 971 states to 971 states and 1374 transitions. [2023-11-06 22:02:51,257 INFO L78 Accepts]: Start accepts. Automaton has 971 states and 1374 transitions. Word has length 172 [2023-11-06 22:02:51,258 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:02:51,258 INFO L495 AbstractCegarLoop]: Abstraction has 971 states and 1374 transitions. [2023-11-06 22:02:51,258 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 55.0) internal successors, (165), 3 states have internal predecessors, (165), 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) [2023-11-06 22:02:51,258 INFO L276 IsEmpty]: Start isEmpty. Operand 971 states and 1374 transitions. [2023-11-06 22:02:51,261 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2023-11-06 22:02:51,261 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:02:51,261 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:02:51,272 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d40f747-2e2c-45a2-b77e-10413bad3479/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2023-11-06 22:02:51,470 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d40f747-2e2c-45a2-b77e-10413bad3479/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2023-11-06 22:02:51,470 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-11-06 22:02:51,471 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:02:51,471 INFO L85 PathProgramCache]: Analyzing trace with hash 1425394549, now seen corresponding path program 1 times [2023-11-06 22:02:51,471 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:02:51,471 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1078049585] [2023-11-06 22:02:51,472 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:02:51,472 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:02:51,580 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-06 22:02:51,581 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [481796042] [2023-11-06 22:02:51,581 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:02:51,582 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:02:51,582 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d40f747-2e2c-45a2-b77e-10413bad3479/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:02:51,585 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d40f747-2e2c-45a2-b77e-10413bad3479/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 22:02:51,608 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d40f747-2e2c-45a2-b77e-10413bad3479/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2023-11-06 22:02:52,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:02:52,573 INFO L262 TraceCheckSpWp]: Trace formula consists of 1035 conjuncts, 9 conjunts are in the unsatisfiable core [2023-11-06 22:02:52,578 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:02:52,608 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-11-06 22:02:52,608 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 22:02:52,608 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:02:52,608 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1078049585] [2023-11-06 22:02:52,608 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-06 22:02:52,609 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [481796042] [2023-11-06 22:02:52,609 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [481796042] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:02:52,609 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:02:52,609 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-06 22:02:52,609 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2076970553] [2023-11-06 22:02:52,609 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:02:52,610 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-06 22:02:52,612 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:02:52,613 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-06 22:02:52,613 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-06 22:02:52,613 INFO L87 Difference]: Start difference. First operand 971 states and 1374 transitions. Second operand has 4 states, 4 states have (on average 43.25) internal successors, (173), 4 states have internal predecessors, (173), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-06 22:02:52,716 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:02:52,716 INFO L93 Difference]: Finished difference Result 1865 states and 2661 transitions. [2023-11-06 22:02:52,717 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-06 22:02:52,718 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 43.25) internal successors, (173), 4 states have internal predecessors, (173), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) Word has length 187 [2023-11-06 22:02:52,718 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:02:52,727 INFO L225 Difference]: With dead ends: 1865 [2023-11-06 22:02:52,727 INFO L226 Difference]: Without dead ends: 974 [2023-11-06 22:02:52,729 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 187 GetRequests, 184 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-06 22:02:52,730 INFO L413 NwaCegarLoop]: 490 mSDtfsCounter, 2 mSDsluCounter, 973 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 1463 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-06 22:02:52,730 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 1463 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-06 22:02:52,733 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 974 states. [2023-11-06 22:02:52,775 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 974 to 974. [2023-11-06 22:02:52,778 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 974 states, 939 states have (on average 1.4068157614483494) internal successors, (1321), 953 states have internal predecessors, (1321), 28 states have call successors, (28), 2 states have call predecessors, (28), 3 states have return successors, (34), 19 states have call predecessors, (34), 28 states have call successors, (34) [2023-11-06 22:02:52,783 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 974 states to 974 states and 1383 transitions. [2023-11-06 22:02:52,784 INFO L78 Accepts]: Start accepts. Automaton has 974 states and 1383 transitions. Word has length 187 [2023-11-06 22:02:52,784 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:02:52,784 INFO L495 AbstractCegarLoop]: Abstraction has 974 states and 1383 transitions. [2023-11-06 22:02:52,785 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 43.25) internal successors, (173), 4 states have internal predecessors, (173), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-06 22:02:52,785 INFO L276 IsEmpty]: Start isEmpty. Operand 974 states and 1383 transitions. [2023-11-06 22:02:52,787 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 192 [2023-11-06 22:02:52,788 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:02:52,788 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:02:52,804 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d40f747-2e2c-45a2-b77e-10413bad3479/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2023-11-06 22:02:52,998 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d40f747-2e2c-45a2-b77e-10413bad3479/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:02:52,999 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-11-06 22:02:52,999 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:02:53,000 INFO L85 PathProgramCache]: Analyzing trace with hash -1425998223, now seen corresponding path program 1 times [2023-11-06 22:02:53,000 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:02:53,000 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2052391640] [2023-11-06 22:02:53,000 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:02:53,000 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:02:53,089 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-06 22:02:53,089 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [308512130] [2023-11-06 22:02:53,089 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:02:53,089 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:02:53,090 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d40f747-2e2c-45a2-b77e-10413bad3479/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:02:53,091 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d40f747-2e2c-45a2-b77e-10413bad3479/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 22:02:53,160 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d40f747-2e2c-45a2-b77e-10413bad3479/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2023-11-06 22:02:54,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:02:54,203 INFO L262 TraceCheckSpWp]: Trace formula consists of 1095 conjuncts, 33 conjunts are in the unsatisfiable core [2023-11-06 22:02:54,210 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:02:54,267 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2023-11-06 22:02:54,296 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 18 [2023-11-06 22:02:54,872 INFO L322 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-06 22:02:54,872 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 46 treesize of output 26 [2023-11-06 22:02:55,050 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2023-11-06 22:02:55,050 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 22:02:55,050 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:02:55,051 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2052391640] [2023-11-06 22:02:55,051 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-06 22:02:55,051 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [308512130] [2023-11-06 22:02:55,051 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [308512130] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:02:55,051 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:02:55,052 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2023-11-06 22:02:55,052 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [193883388] [2023-11-06 22:02:55,052 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:02:55,053 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-11-06 22:02:55,053 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:02:55,054 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-11-06 22:02:55,054 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=126, Unknown=0, NotChecked=0, Total=156 [2023-11-06 22:02:55,054 INFO L87 Difference]: Start difference. First operand 974 states and 1383 transitions. Second operand has 13 states, 13 states have (on average 13.153846153846153) internal successors, (171), 13 states have internal predecessors, (171), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2023-11-06 22:02:58,317 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:02:58,318 INFO L93 Difference]: Finished difference Result 1910 states and 2725 transitions. [2023-11-06 22:02:58,318 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-06 22:02:58,319 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 13.153846153846153) internal successors, (171), 13 states have internal predecessors, (171), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 191 [2023-11-06 22:02:58,319 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:02:58,325 INFO L225 Difference]: With dead ends: 1910 [2023-11-06 22:02:58,326 INFO L226 Difference]: Without dead ends: 974 [2023-11-06 22:02:58,328 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 197 GetRequests, 179 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=88, Invalid=292, Unknown=0, NotChecked=0, Total=380 [2023-11-06 22:02:58,329 INFO L413 NwaCegarLoop]: 466 mSDtfsCounter, 913 mSDsluCounter, 3434 mSDsCounter, 0 mSdLazyCounter, 1206 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 918 SdHoareTripleChecker+Valid, 3900 SdHoareTripleChecker+Invalid, 1221 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 1206 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2023-11-06 22:02:58,329 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [918 Valid, 3900 Invalid, 1221 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 1206 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2023-11-06 22:02:58,331 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 974 states. [2023-11-06 22:02:58,370 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 974 to 974. [2023-11-06 22:02:58,373 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 974 states, 939 states have (on average 1.4057507987220448) internal successors, (1320), 953 states have internal predecessors, (1320), 28 states have call successors, (28), 2 states have call predecessors, (28), 3 states have return successors, (34), 19 states have call predecessors, (34), 28 states have call successors, (34) [2023-11-06 22:02:58,378 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 974 states to 974 states and 1382 transitions. [2023-11-06 22:02:58,379 INFO L78 Accepts]: Start accepts. Automaton has 974 states and 1382 transitions. Word has length 191 [2023-11-06 22:02:58,379 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:02:58,379 INFO L495 AbstractCegarLoop]: Abstraction has 974 states and 1382 transitions. [2023-11-06 22:02:58,379 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 13.153846153846153) internal successors, (171), 13 states have internal predecessors, (171), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2023-11-06 22:02:58,380 INFO L276 IsEmpty]: Start isEmpty. Operand 974 states and 1382 transitions. [2023-11-06 22:02:58,382 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 193 [2023-11-06 22:02:58,383 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:02:58,383 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:02:58,400 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d40f747-2e2c-45a2-b77e-10413bad3479/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2023-11-06 22:02:58,594 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d40f747-2e2c-45a2-b77e-10413bad3479/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:02:58,595 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-11-06 22:02:58,595 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:02:58,596 INFO L85 PathProgramCache]: Analyzing trace with hash -1958694149, now seen corresponding path program 1 times [2023-11-06 22:02:58,596 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:02:58,596 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [151846411] [2023-11-06 22:02:58,596 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:02:58,597 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:02:58,693 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-06 22:02:58,693 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1713559645] [2023-11-06 22:02:58,693 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:02:58,694 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:02:58,694 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d40f747-2e2c-45a2-b77e-10413bad3479/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:02:58,695 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d40f747-2e2c-45a2-b77e-10413bad3479/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 22:02:58,727 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d40f747-2e2c-45a2-b77e-10413bad3479/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2023-11-06 22:03:00,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:03:00,034 INFO L262 TraceCheckSpWp]: Trace formula consists of 1096 conjuncts, 50 conjunts are in the unsatisfiable core [2023-11-06 22:03:00,042 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:03:00,119 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2023-11-06 22:03:00,144 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 18 [2023-11-06 22:03:00,833 INFO L322 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-06 22:03:00,833 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 46 treesize of output 26 [2023-11-06 22:03:01,206 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2023-11-06 22:03:01,207 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 22:03:01,207 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:03:01,207 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [151846411] [2023-11-06 22:03:01,207 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-06 22:03:01,207 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1713559645] [2023-11-06 22:03:01,207 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1713559645] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:03:01,208 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:03:01,208 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2023-11-06 22:03:01,208 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [143809875] [2023-11-06 22:03:01,208 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:03:01,209 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2023-11-06 22:03:01,211 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:03:01,212 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2023-11-06 22:03:01,212 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=176, Unknown=0, NotChecked=0, Total=210 [2023-11-06 22:03:01,212 INFO L87 Difference]: Start difference. First operand 974 states and 1382 transitions. Second operand has 15 states, 15 states have (on average 11.466666666666667) internal successors, (172), 15 states have internal predecessors, (172), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2023-11-06 22:03:04,339 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:03:04,339 INFO L93 Difference]: Finished difference Result 1910 states and 2724 transitions. [2023-11-06 22:03:04,340 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-06 22:03:04,341 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 11.466666666666667) internal successors, (172), 15 states have internal predecessors, (172), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 192 [2023-11-06 22:03:04,341 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:03:04,347 INFO L225 Difference]: With dead ends: 1910 [2023-11-06 22:03:04,347 INFO L226 Difference]: Without dead ends: 974 [2023-11-06 22:03:04,351 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 198 GetRequests, 178 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=92, Invalid=370, Unknown=0, NotChecked=0, Total=462 [2023-11-06 22:03:04,351 INFO L413 NwaCegarLoop]: 426 mSDtfsCounter, 807 mSDsluCounter, 3437 mSDsCounter, 0 mSdLazyCounter, 1138 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 812 SdHoareTripleChecker+Valid, 3863 SdHoareTripleChecker+Invalid, 1155 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 1138 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2023-11-06 22:03:04,353 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [812 Valid, 3863 Invalid, 1155 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 1138 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2023-11-06 22:03:04,354 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 974 states. [2023-11-06 22:03:04,385 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 974 to 974. [2023-11-06 22:03:04,387 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 974 states, 939 states have (on average 1.4036208732694355) internal successors, (1318), 953 states have internal predecessors, (1318), 28 states have call successors, (28), 2 states have call predecessors, (28), 3 states have return successors, (34), 19 states have call predecessors, (34), 28 states have call successors, (34) [2023-11-06 22:03:04,392 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 974 states to 974 states and 1380 transitions. [2023-11-06 22:03:04,392 INFO L78 Accepts]: Start accepts. Automaton has 974 states and 1380 transitions. Word has length 192 [2023-11-06 22:03:04,393 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:03:04,393 INFO L495 AbstractCegarLoop]: Abstraction has 974 states and 1380 transitions. [2023-11-06 22:03:04,393 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 11.466666666666667) internal successors, (172), 15 states have internal predecessors, (172), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2023-11-06 22:03:04,393 INFO L276 IsEmpty]: Start isEmpty. Operand 974 states and 1380 transitions. [2023-11-06 22:03:04,396 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 194 [2023-11-06 22:03:04,396 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:03:04,396 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:03:04,413 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d40f747-2e2c-45a2-b77e-10413bad3479/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2023-11-06 22:03:04,607 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d40f747-2e2c-45a2-b77e-10413bad3479/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2023-11-06 22:03:04,608 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-11-06 22:03:04,608 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:03:04,608 INFO L85 PathProgramCache]: Analyzing trace with hash -6540470, now seen corresponding path program 1 times [2023-11-06 22:03:04,608 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:03:04,608 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1802158093] [2023-11-06 22:03:04,608 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:03:04,609 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:03:04,702 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-06 22:03:04,702 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1626985574] [2023-11-06 22:03:04,702 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:03:04,703 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:03:04,703 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d40f747-2e2c-45a2-b77e-10413bad3479/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:03:04,704 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d40f747-2e2c-45a2-b77e-10413bad3479/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 22:03:04,732 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d40f747-2e2c-45a2-b77e-10413bad3479/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2023-11-06 22:03:05,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:03:05,933 INFO L262 TraceCheckSpWp]: Trace formula consists of 1095 conjuncts, 121 conjunts are in the unsatisfiable core [2023-11-06 22:03:05,945 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:03:05,957 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2023-11-06 22:03:05,987 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2023-11-06 22:03:06,018 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2023-11-06 22:03:06,271 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2023-11-06 22:03:06,331 INFO L322 Elim1Store]: treesize reduction 26, result has 35.0 percent of original size [2023-11-06 22:03:06,331 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 25 treesize of output 29 [2023-11-06 22:03:06,345 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2023-11-06 22:03:06,426 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 10 [2023-11-06 22:03:06,431 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2023-11-06 22:03:06,662 INFO L322 Elim1Store]: treesize reduction 19, result has 20.8 percent of original size [2023-11-06 22:03:06,662 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 50 treesize of output 45 [2023-11-06 22:03:06,672 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 11 [2023-11-06 22:03:09,565 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-06 22:03:09,706 INFO L217 Elim1Store]: Index analysis took 152 ms [2023-11-06 22:05:35,959 WARN L293 SmtUtils]: Spent 2.38m on a formula simplification. DAG size of input: 57872 DAG size of output: 1 (called from [L 319] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2023-11-06 22:05:35,960 INFO L322 Elim1Store]: treesize reduction 1162828, result has 0.0 percent of original size [2023-11-06 22:05:36,254 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 244 stores, 26 select indices, 26 select index equivalence classes, 1 disjoint index pairs (out of 325 index pairs), introduced 292 new quantified variables, introduced 6931 case distinctions, treesize of input 5469535400 treesize of output 1140731562