./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/weaver/chl-nzb-file-subst.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 9bd2c7ff 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_f627cddc-a39d-4b85-9fd8-841918221fa5/bin/ugemcutter-verify-ztSkJzofpW/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f627cddc-a39d-4b85-9fd8-841918221fa5/bin/ugemcutter-verify-ztSkJzofpW/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f627cddc-a39d-4b85-9fd8-841918221fa5/bin/ugemcutter-verify-ztSkJzofpW/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f627cddc-a39d-4b85-9fd8-841918221fa5/bin/ugemcutter-verify-ztSkJzofpW/config/GemCutterReach.xml -i ../../sv-benchmarks/c/weaver/chl-nzb-file-subst.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f627cddc-a39d-4b85-9fd8-841918221fa5/bin/ugemcutter-verify-ztSkJzofpW/config/svcomp-Overflow-32bit-GemCutter_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f627cddc-a39d-4b85-9fd8-841918221fa5/bin/ugemcutter-verify-ztSkJzofpW --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer GemCutter --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 47976145f2a7f206dd7d2e7a0ffeac879f94f33f7a5b87161ebd997173567eb0 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-17 22:47:32,431 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-17 22:47:32,551 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f627cddc-a39d-4b85-9fd8-841918221fa5/bin/ugemcutter-verify-ztSkJzofpW/config/svcomp-Overflow-32bit-GemCutter_Default.epf [2023-11-17 22:47:32,557 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-17 22:47:32,558 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-17 22:47:32,584 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-17 22:47:32,586 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-17 22:47:32,587 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-17 22:47:32,588 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-17 22:47:32,593 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-17 22:47:32,593 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-17 22:47:32,594 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-17 22:47:32,594 INFO L153 SettingsManager]: * Use SBE=true [2023-11-17 22:47:32,596 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-17 22:47:32,597 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-17 22:47:32,597 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-17 22:47:32,598 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-17 22:47:32,598 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-17 22:47:32,598 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-17 22:47:32,599 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-17 22:47:32,599 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-17 22:47:32,600 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-17 22:47:32,600 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-17 22:47:32,601 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-17 22:47:32,601 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-17 22:47:32,601 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-17 22:47:32,602 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-17 22:47:32,602 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-17 22:47:32,603 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-17 22:47:32,603 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-17 22:47:32,604 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-17 22:47:32,605 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-17 22:47:32,605 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-17 22:47:32,605 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-17 22:47:32,605 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-17 22:47:32,606 INFO L153 SettingsManager]: * DFS Order used in POR=LOOP_LOCKSTEP [2023-11-17 22:47:32,606 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-17 22:47:32,606 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-17 22:47:32,606 INFO L153 SettingsManager]: * Abstraction used for commutativity in POR=VARIABLES_GLOBAL [2023-11-17 22:47:32,607 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2023-11-17 22:47:32,607 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-17 22:47:32,611 INFO L153 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2023-11-17 22:47:32,611 INFO L153 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2023-11-17 22:47:32,611 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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_f627cddc-a39d-4b85-9fd8-841918221fa5/bin/ugemcutter-verify-ztSkJzofpW/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f627cddc-a39d-4b85-9fd8-841918221fa5/bin/ugemcutter-verify-ztSkJzofpW Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> GemCutter Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 47976145f2a7f206dd7d2e7a0ffeac879f94f33f7a5b87161ebd997173567eb0 [2023-11-17 22:47:32,918 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-17 22:47:32,952 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-17 22:47:32,955 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-17 22:47:32,957 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-17 22:47:32,957 INFO L274 PluginConnector]: CDTParser initialized [2023-11-17 22:47:32,959 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f627cddc-a39d-4b85-9fd8-841918221fa5/bin/ugemcutter-verify-ztSkJzofpW/../../sv-benchmarks/c/weaver/chl-nzb-file-subst.wvr.c [2023-11-17 22:47:36,047 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-17 22:47:36,395 INFO L384 CDTParser]: Found 1 translation units. [2023-11-17 22:47:36,396 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f627cddc-a39d-4b85-9fd8-841918221fa5/sv-benchmarks/c/weaver/chl-nzb-file-subst.wvr.c [2023-11-17 22:47:36,413 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f627cddc-a39d-4b85-9fd8-841918221fa5/bin/ugemcutter-verify-ztSkJzofpW/data/b52e10207/27a677a9b6424e598be7bba251a79eb4/FLAG428e919b6 [2023-11-17 22:47:36,429 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f627cddc-a39d-4b85-9fd8-841918221fa5/bin/ugemcutter-verify-ztSkJzofpW/data/b52e10207/27a677a9b6424e598be7bba251a79eb4 [2023-11-17 22:47:36,432 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-17 22:47:36,434 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-17 22:47:36,436 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-17 22:47:36,436 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-17 22:47:36,443 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-17 22:47:36,444 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.11 10:47:36" (1/1) ... [2023-11-17 22:47:36,445 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@bb703ef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 10:47:36, skipping insertion in model container [2023-11-17 22:47:36,445 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.11 10:47:36" (1/1) ... [2023-11-17 22:47:36,507 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-17 22:47:36,773 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-17 22:47:36,788 INFO L202 MainTranslator]: Completed pre-run [2023-11-17 22:47:36,848 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-17 22:47:36,867 INFO L206 MainTranslator]: Completed translation [2023-11-17 22:47:36,867 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 10:47:36 WrapperNode [2023-11-17 22:47:36,868 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-17 22:47:36,869 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-17 22:47:36,869 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-17 22:47:36,869 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-17 22:47:36,879 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 10:47:36" (1/1) ... [2023-11-17 22:47:36,896 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 10:47:36" (1/1) ... [2023-11-17 22:47:36,964 INFO L138 Inliner]: procedures = 26, calls = 77, calls flagged for inlining = 29, calls inlined = 43, statements flattened = 740 [2023-11-17 22:47:36,964 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-17 22:47:36,965 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-17 22:47:36,965 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-17 22:47:36,965 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-17 22:47:36,983 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 10:47:36" (1/1) ... [2023-11-17 22:47:36,983 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 10:47:36" (1/1) ... [2023-11-17 22:47:36,992 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 10:47:36" (1/1) ... [2023-11-17 22:47:36,992 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 10:47:36" (1/1) ... [2023-11-17 22:47:37,014 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 10:47:36" (1/1) ... [2023-11-17 22:47:37,023 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 10:47:36" (1/1) ... [2023-11-17 22:47:37,028 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 10:47:36" (1/1) ... [2023-11-17 22:47:37,032 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 10:47:36" (1/1) ... [2023-11-17 22:47:37,041 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-17 22:47:37,042 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-17 22:47:37,042 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-17 22:47:37,042 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-17 22:47:37,043 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 10:47:36" (1/1) ... [2023-11-17 22:47:37,050 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-17 22:47:37,066 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f627cddc-a39d-4b85-9fd8-841918221fa5/bin/ugemcutter-verify-ztSkJzofpW/z3 [2023-11-17 22:47:37,086 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f627cddc-a39d-4b85-9fd8-841918221fa5/bin/ugemcutter-verify-ztSkJzofpW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-17 22:47:37,114 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f627cddc-a39d-4b85-9fd8-841918221fa5/bin/ugemcutter-verify-ztSkJzofpW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-17 22:47:37,149 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-17 22:47:37,149 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-17 22:47:37,149 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-17 22:47:37,150 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-17 22:47:37,150 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-11-17 22:47:37,150 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-11-17 22:47:37,150 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-11-17 22:47:37,150 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-11-17 22:47:37,151 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2023-11-17 22:47:37,151 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2023-11-17 22:47:37,151 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-17 22:47:37,151 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-17 22:47:37,151 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-17 22:47:37,152 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-17 22:47:37,152 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-17 22:47:37,154 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-17 22:47:37,323 INFO L236 CfgBuilder]: Building ICFG [2023-11-17 22:47:37,326 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-17 22:47:38,542 INFO L277 CfgBuilder]: Performing block encoding [2023-11-17 22:47:38,568 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-17 22:47:38,568 INFO L302 CfgBuilder]: Removed 6 assume(true) statements. [2023-11-17 22:47:38,585 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.11 10:47:38 BoogieIcfgContainer [2023-11-17 22:47:38,586 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-17 22:47:38,591 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-17 22:47:38,591 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-17 22:47:38,594 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-17 22:47:38,595 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.11 10:47:36" (1/3) ... [2023-11-17 22:47:38,596 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@597d2aa6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.11 10:47:38, skipping insertion in model container [2023-11-17 22:47:38,597 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 10:47:36" (2/3) ... [2023-11-17 22:47:38,598 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@597d2aa6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.11 10:47:38, skipping insertion in model container [2023-11-17 22:47:38,598 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.11 10:47:38" (3/3) ... [2023-11-17 22:47:38,600 INFO L112 eAbstractionObserver]: Analyzing ICFG chl-nzb-file-subst.wvr.c [2023-11-17 22:47:38,612 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-11-17 22:47:38,623 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-17 22:47:38,624 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 60 error locations. [2023-11-17 22:47:38,624 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-17 22:47:38,971 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2023-11-17 22:47:39,065 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=VARIABLES_GLOBAL, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-17 22:47:39,066 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2023-11-17 22:47:39,066 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f627cddc-a39d-4b85-9fd8-841918221fa5/bin/ugemcutter-verify-ztSkJzofpW/z3 [2023-11-17 22:47:39,068 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f627cddc-a39d-4b85-9fd8-841918221fa5/bin/ugemcutter-verify-ztSkJzofpW/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2023-11-17 22:47:39,069 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f627cddc-a39d-4b85-9fd8-841918221fa5/bin/ugemcutter-verify-ztSkJzofpW/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Waiting until timeout for monitored process [2023-11-17 22:47:39,116 INFO L159 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2023-11-17 22:47:39,131 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == thread2Thread1of1ForFork1 ======== [2023-11-17 22:47:39,138 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=PARTIAL_ORDER_FA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@44ad0146, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-17 22:47:39,139 INFO L358 AbstractCegarLoop]: Starting to check reachability of 18 error locations. [2023-11-17 22:47:40,681 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting thread2Err10ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread2Err12ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err13ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err6ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2023-11-17 22:47:40,686 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-17 22:47:40,687 INFO L85 PathProgramCache]: Analyzing trace with hash 802643970, now seen corresponding path program 1 times [2023-11-17 22:47:40,698 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-17 22:47:40,698 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [706258110] [2023-11-17 22:47:40,699 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-17 22:47:40,699 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-17 22:47:40,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-17 22:47:41,306 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-17 22:47:41,308 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-17 22:47:41,309 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [706258110] [2023-11-17 22:47:41,310 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [706258110] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-17 22:47:41,311 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-17 22:47:41,311 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-17 22:47:41,313 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [948314468] [2023-11-17 22:47:41,315 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-17 22:47:41,325 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-17 22:47:41,326 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-17 22:47:41,360 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-17 22:47:41,361 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-17 22:47:41,362 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-17 22:47:41,369 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-11-17 22:47:41,371 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 160.0) internal successors, (320), 2 states have internal predecessors, (320), 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) [2023-11-17 22:47:41,371 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-17 22:47:41,627 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-17 22:47:41,627 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-17 22:47:41,628 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thread2Err10ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread2Err12ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err13ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err6ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2023-11-17 22:47:41,628 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-17 22:47:41,629 INFO L85 PathProgramCache]: Analyzing trace with hash 250350890, now seen corresponding path program 1 times [2023-11-17 22:47:41,629 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-17 22:47:41,630 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [805170407] [2023-11-17 22:47:41,631 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-17 22:47:41,631 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-17 22:47:41,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-17 22:47:42,059 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-17 22:47:42,059 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-17 22:47:42,059 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [805170407] [2023-11-17 22:47:42,060 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [805170407] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-17 22:47:42,060 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-17 22:47:42,060 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-17 22:47:42,061 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1323550571] [2023-11-17 22:47:42,061 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-17 22:47:42,063 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-17 22:47:42,063 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-17 22:47:42,064 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-17 22:47:42,065 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-17 22:47:42,065 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-17 22:47:42,067 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-11-17 22:47:42,068 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 52.6) internal successors, (263), 5 states have internal predecessors, (263), 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) [2023-11-17 22:47:42,068 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-17 22:47:42,069 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-17 22:47:42,316 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-17 22:47:42,316 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-17 22:47:42,317 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-17 22:47:42,317 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting thread2Err10ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread2Err12ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err13ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err6ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2023-11-17 22:47:42,317 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-17 22:47:42,318 INFO L85 PathProgramCache]: Analyzing trace with hash -1898545821, now seen corresponding path program 1 times [2023-11-17 22:47:42,318 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-17 22:47:42,318 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1449010919] [2023-11-17 22:47:42,319 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-17 22:47:42,319 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-17 22:47:42,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-17 22:47:42,792 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-17 22:47:42,792 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-17 22:47:42,793 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1449010919] [2023-11-17 22:47:42,794 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1449010919] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-17 22:47:42,794 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [432349204] [2023-11-17 22:47:42,795 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-17 22:47:42,795 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-17 22:47:42,796 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f627cddc-a39d-4b85-9fd8-841918221fa5/bin/ugemcutter-verify-ztSkJzofpW/z3 [2023-11-17 22:47:42,832 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f627cddc-a39d-4b85-9fd8-841918221fa5/bin/ugemcutter-verify-ztSkJzofpW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-17 22:47:42,862 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f627cddc-a39d-4b85-9fd8-841918221fa5/bin/ugemcutter-verify-ztSkJzofpW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-17 22:47:43,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-17 22:47:43,111 INFO L262 TraceCheckSpWp]: Trace formula consists of 571 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-17 22:47:43,137 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-17 22:47:43,287 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-17 22:47:43,288 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-17 22:47:43,400 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-17 22:47:43,400 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [432349204] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-17 22:47:43,400 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-17 22:47:43,401 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 15 [2023-11-17 22:47:43,401 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1937617730] [2023-11-17 22:47:43,401 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-17 22:47:43,403 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2023-11-17 22:47:43,403 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-17 22:47:43,404 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2023-11-17 22:47:43,405 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=153, Unknown=0, NotChecked=0, Total=210 [2023-11-17 22:47:43,405 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-17 22:47:43,408 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-11-17 22:47:43,409 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 22.066666666666666) internal successors, (331), 15 states have internal predecessors, (331), 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) [2023-11-17 22:47:43,409 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-17 22:47:43,409 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2023-11-17 22:47:43,409 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-17 22:47:43,944 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-17 22:47:43,944 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-17 22:47:43,944 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-17 22:47:43,971 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f627cddc-a39d-4b85-9fd8-841918221fa5/bin/ugemcutter-verify-ztSkJzofpW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-11-17 22:47:44,157 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f627cddc-a39d-4b85-9fd8-841918221fa5/bin/ugemcutter-verify-ztSkJzofpW/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-17 22:47:44,158 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting thread2Err10ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread2Err12ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err13ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err6ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2023-11-17 22:47:44,158 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-17 22:47:44,159 INFO L85 PathProgramCache]: Analyzing trace with hash 359780675, now seen corresponding path program 2 times [2023-11-17 22:47:44,159 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-17 22:47:44,159 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1869643117] [2023-11-17 22:47:44,159 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-17 22:47:44,159 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-17 22:47:44,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-17 22:47:44,785 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2023-11-17 22:47:44,785 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-17 22:47:44,786 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1869643117] [2023-11-17 22:47:44,786 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1869643117] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-17 22:47:44,786 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1484704643] [2023-11-17 22:47:44,786 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-17 22:47:44,787 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-17 22:47:44,787 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f627cddc-a39d-4b85-9fd8-841918221fa5/bin/ugemcutter-verify-ztSkJzofpW/z3 [2023-11-17 22:47:44,788 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f627cddc-a39d-4b85-9fd8-841918221fa5/bin/ugemcutter-verify-ztSkJzofpW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-17 22:47:44,817 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f627cddc-a39d-4b85-9fd8-841918221fa5/bin/ugemcutter-verify-ztSkJzofpW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-17 22:47:45,018 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-11-17 22:47:45,019 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-17 22:47:45,022 INFO L262 TraceCheckSpWp]: Trace formula consists of 529 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-17 22:47:45,031 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-17 22:47:45,755 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 90 trivial. 0 not checked. [2023-11-17 22:47:45,755 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-17 22:47:45,755 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1484704643] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-17 22:47:45,755 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-17 22:47:45,756 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [11] total 17 [2023-11-17 22:47:45,756 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [16608363] [2023-11-17 22:47:45,756 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-17 22:47:45,757 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-17 22:47:45,757 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-17 22:47:45,759 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-17 22:47:45,759 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=228, Unknown=0, NotChecked=0, Total=272 [2023-11-17 22:47:45,759 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-17 22:47:45,762 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-11-17 22:47:45,763 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 41.42857142857143) internal successors, (290), 8 states have internal predecessors, (290), 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) [2023-11-17 22:47:45,763 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-17 22:47:45,763 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2023-11-17 22:47:45,763 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2023-11-17 22:47:45,763 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-17 22:47:46,118 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-17 22:47:46,118 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-17 22:47:46,118 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-17 22:47:46,119 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-17 22:47:46,141 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f627cddc-a39d-4b85-9fd8-841918221fa5/bin/ugemcutter-verify-ztSkJzofpW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-11-17 22:47:46,340 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f627cddc-a39d-4b85-9fd8-841918221fa5/bin/ugemcutter-verify-ztSkJzofpW/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-17 22:47:46,341 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting thread2Err11ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread2Err12ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err13ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err6ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2023-11-17 22:47:46,341 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-17 22:47:46,341 INFO L85 PathProgramCache]: Analyzing trace with hash -1731698117, now seen corresponding path program 1 times [2023-11-17 22:47:46,342 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-17 22:47:46,342 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1152872149] [2023-11-17 22:47:46,342 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-17 22:47:46,342 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-17 22:47:46,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-17 22:47:46,950 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2023-11-17 22:47:46,950 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-17 22:47:46,950 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1152872149] [2023-11-17 22:47:46,951 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1152872149] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-17 22:47:46,951 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [824519589] [2023-11-17 22:47:46,951 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-17 22:47:46,951 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-17 22:47:46,951 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f627cddc-a39d-4b85-9fd8-841918221fa5/bin/ugemcutter-verify-ztSkJzofpW/z3 [2023-11-17 22:47:46,953 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f627cddc-a39d-4b85-9fd8-841918221fa5/bin/ugemcutter-verify-ztSkJzofpW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-17 22:47:46,969 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f627cddc-a39d-4b85-9fd8-841918221fa5/bin/ugemcutter-verify-ztSkJzofpW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-11-17 22:47:47,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-17 22:47:47,195 INFO L262 TraceCheckSpWp]: Trace formula consists of 656 conjuncts, 10 conjunts are in the unsatisfiable core [2023-11-17 22:47:47,202 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-17 22:47:47,445 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2023-11-17 22:47:47,445 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-17 22:47:47,619 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2023-11-17 22:47:47,620 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [824519589] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-17 22:47:47,620 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-17 22:47:47,621 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 22 [2023-11-17 22:47:47,621 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [930116797] [2023-11-17 22:47:47,621 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-17 22:47:47,623 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2023-11-17 22:47:47,623 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-17 22:47:47,624 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2023-11-17 22:47:47,625 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=114, Invalid=348, Unknown=0, NotChecked=0, Total=462 [2023-11-17 22:47:47,625 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-17 22:47:47,628 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-11-17 22:47:47,629 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 16.727272727272727) internal successors, (368), 22 states have internal predecessors, (368), 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) [2023-11-17 22:47:47,629 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-17 22:47:47,629 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2023-11-17 22:47:47,629 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2023-11-17 22:47:47,629 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2023-11-17 22:47:47,630 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-17 22:47:48,386 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-17 22:47:48,386 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-17 22:47:48,387 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-17 22:47:48,387 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-17 22:47:48,387 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-11-17 22:47:48,416 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f627cddc-a39d-4b85-9fd8-841918221fa5/bin/ugemcutter-verify-ztSkJzofpW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-11-17 22:47:48,608 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f627cddc-a39d-4b85-9fd8-841918221fa5/bin/ugemcutter-verify-ztSkJzofpW/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-17 22:47:48,609 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting thread2Err11ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread2Err12ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err13ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err6ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2023-11-17 22:47:48,609 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-17 22:47:48,610 INFO L85 PathProgramCache]: Analyzing trace with hash 1741660763, now seen corresponding path program 2 times [2023-11-17 22:47:48,610 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-17 22:47:48,610 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [10207667] [2023-11-17 22:47:48,610 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-17 22:47:48,611 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-17 22:47:48,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-17 22:47:49,218 INFO L134 CoverageAnalysis]: Checked inductivity of 285 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 285 trivial. 0 not checked. [2023-11-17 22:47:49,219 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-17 22:47:49,219 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [10207667] [2023-11-17 22:47:49,220 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [10207667] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-17 22:47:49,220 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-17 22:47:49,220 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-17 22:47:49,221 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [506246636] [2023-11-17 22:47:49,221 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-17 22:47:49,222 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-17 22:47:49,222 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-17 22:47:49,223 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-17 22:47:49,223 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2023-11-17 22:47:49,224 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-17 22:47:49,226 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-11-17 22:47:49,227 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 41.57142857142857) internal successors, (291), 8 states have internal predecessors, (291), 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) [2023-11-17 22:47:49,227 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-17 22:47:49,227 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2023-11-17 22:47:49,227 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2023-11-17 22:47:49,227 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2023-11-17 22:47:49,228 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2023-11-17 22:47:49,228 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-17 22:47:49,504 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-17 22:47:49,505 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-17 22:47:49,505 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-17 22:47:49,505 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-17 22:47:49,506 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-11-17 22:47:49,506 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-17 22:47:49,506 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-17 22:47:49,507 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting thread2Err8ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread2Err12ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err13ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err6ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2023-11-17 22:47:49,507 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-17 22:47:49,507 INFO L85 PathProgramCache]: Analyzing trace with hash -732487640, now seen corresponding path program 1 times [2023-11-17 22:47:49,508 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-17 22:47:49,509 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2123134038] [2023-11-17 22:47:49,512 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-17 22:47:49,512 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-17 22:47:49,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-17 22:47:49,899 INFO L134 CoverageAnalysis]: Checked inductivity of 285 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 285 trivial. 0 not checked. [2023-11-17 22:47:49,900 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-17 22:47:49,900 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2123134038] [2023-11-17 22:47:49,901 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2123134038] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-17 22:47:49,901 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-17 22:47:49,902 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-17 22:47:49,908 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [724720663] [2023-11-17 22:47:49,908 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-17 22:47:49,909 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-17 22:47:49,909 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-17 22:47:49,911 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-17 22:47:49,911 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-17 22:47:49,911 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-17 22:47:49,915 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-11-17 22:47:49,916 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 56.6) internal successors, (283), 6 states have internal predecessors, (283), 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) [2023-11-17 22:47:49,916 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-17 22:47:49,916 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2023-11-17 22:47:49,916 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2023-11-17 22:47:49,916 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2023-11-17 22:47:49,917 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2023-11-17 22:47:49,917 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2023-11-17 22:47:49,918 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-17 22:47:50,148 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-17 22:47:50,149 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-17 22:47:50,149 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-17 22:47:50,149 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-17 22:47:50,149 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-11-17 22:47:50,150 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-17 22:47:50,150 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-17 22:47:50,150 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-17 22:47:50,151 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting thread2Err11ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread2Err12ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err13ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err6ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2023-11-17 22:47:50,151 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-17 22:47:50,152 INFO L85 PathProgramCache]: Analyzing trace with hash 456161081, now seen corresponding path program 1 times [2023-11-17 22:47:50,152 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-17 22:47:50,152 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1737529329] [2023-11-17 22:47:50,152 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-17 22:47:50,153 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-17 22:47:50,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-17 22:47:50,694 INFO L134 CoverageAnalysis]: Checked inductivity of 285 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 285 trivial. 0 not checked. [2023-11-17 22:47:50,694 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-17 22:47:50,695 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1737529329] [2023-11-17 22:47:50,695 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1737529329] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-17 22:47:50,695 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-17 22:47:50,695 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-17 22:47:50,696 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1720264024] [2023-11-17 22:47:50,696 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-17 22:47:50,697 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-17 22:47:50,697 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-17 22:47:50,698 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-17 22:47:50,699 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2023-11-17 22:47:50,699 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-17 22:47:50,703 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-11-17 22:47:50,704 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 42.0) internal successors, (294), 7 states have internal predecessors, (294), 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) [2023-11-17 22:47:50,704 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-17 22:47:50,704 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2023-11-17 22:47:50,704 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2023-11-17 22:47:50,705 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2023-11-17 22:47:50,705 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2023-11-17 22:47:50,705 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2023-11-17 22:47:50,705 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2023-11-17 22:47:50,705 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-17 22:47:51,190 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-17 22:47:51,190 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-17 22:47:51,190 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-17 22:47:51,190 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-17 22:47:51,190 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-11-17 22:47:51,191 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-17 22:47:51,191 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-17 22:47:51,191 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-17 22:47:51,191 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-11-17 22:47:51,192 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting thread2Err4ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread2Err12ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err13ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err6ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2023-11-17 22:47:51,192 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-17 22:47:51,192 INFO L85 PathProgramCache]: Analyzing trace with hash 1224118705, now seen corresponding path program 1 times [2023-11-17 22:47:51,193 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-17 22:47:51,195 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [546492746] [2023-11-17 22:47:51,195 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-17 22:47:51,195 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-17 22:47:51,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-17 22:47:51,510 INFO L134 CoverageAnalysis]: Checked inductivity of 285 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 285 trivial. 0 not checked. [2023-11-17 22:47:51,510 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-17 22:47:51,511 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [546492746] [2023-11-17 22:47:51,511 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [546492746] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-17 22:47:51,511 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-17 22:47:51,512 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-17 22:47:51,512 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2088948149] [2023-11-17 22:47:51,512 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-17 22:47:51,513 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-17 22:47:51,513 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-17 22:47:51,514 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-17 22:47:51,514 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-17 22:47:51,514 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-17 22:47:51,516 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-11-17 22:47:51,517 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 107.66666666666667) internal successors, (323), 4 states have internal predecessors, (323), 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) [2023-11-17 22:47:51,517 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-17 22:47:51,517 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2023-11-17 22:47:51,517 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2023-11-17 22:47:51,517 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2023-11-17 22:47:51,518 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2023-11-17 22:47:51,518 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2023-11-17 22:47:51,518 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2023-11-17 22:47:51,518 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2023-11-17 22:47:51,518 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-17 22:47:51,865 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-17 22:47:51,865 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-17 22:47:51,866 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-17 22:47:51,866 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-17 22:47:51,866 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-11-17 22:47:51,866 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-17 22:47:51,866 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-17 22:47:51,867 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-17 22:47:51,867 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-17 22:47:51,867 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-11-17 22:47:51,868 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting thread2Err11ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread2Err12ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err13ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err6ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2023-11-17 22:47:51,868 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-17 22:47:51,868 INFO L85 PathProgramCache]: Analyzing trace with hash 863154234, now seen corresponding path program 1 times [2023-11-17 22:47:51,869 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-17 22:47:51,869 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [635134008] [2023-11-17 22:47:51,869 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-17 22:47:51,870 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-17 22:47:52,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-17 22:47:54,244 INFO L134 CoverageAnalysis]: Checked inductivity of 287 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 285 trivial. 0 not checked. [2023-11-17 22:47:54,245 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-17 22:47:54,245 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [635134008] [2023-11-17 22:47:54,245 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [635134008] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-17 22:47:54,245 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-17 22:47:54,246 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2023-11-17 22:47:54,246 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [234289379] [2023-11-17 22:47:54,246 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-17 22:47:54,247 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-17 22:47:54,247 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-17 22:47:54,249 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-17 22:47:54,249 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2023-11-17 22:47:54,249 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-17 22:47:54,251 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-11-17 22:47:54,252 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 30.333333333333332) internal successors, (364), 12 states have internal predecessors, (364), 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) [2023-11-17 22:47:54,252 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-17 22:47:54,252 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2023-11-17 22:47:54,252 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2023-11-17 22:47:54,252 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2023-11-17 22:47:54,253 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2023-11-17 22:47:54,253 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2023-11-17 22:47:54,253 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2023-11-17 22:47:54,253 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2023-11-17 22:47:54,253 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2023-11-17 22:47:54,253 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-17 22:47:55,013 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-17 22:47:55,013 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-17 22:47:55,013 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-17 22:47:55,013 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-17 22:47:55,014 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-11-17 22:47:55,014 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-17 22:47:55,014 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-17 22:47:55,014 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-17 22:47:55,014 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-17 22:47:55,015 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-11-17 22:47:55,015 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-11-17 22:47:55,015 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting thread2Err11ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread2Err12ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err13ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err6ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2023-11-17 22:47:55,016 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-17 22:47:55,016 INFO L85 PathProgramCache]: Analyzing trace with hash -1332454024, now seen corresponding path program 1 times [2023-11-17 22:47:55,016 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-17 22:47:55,017 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [607634234] [2023-11-17 22:47:55,017 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-17 22:47:55,017 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-17 22:47:55,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-17 22:47:56,739 INFO L134 CoverageAnalysis]: Checked inductivity of 287 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 285 trivial. 0 not checked. [2023-11-17 22:47:56,739 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-17 22:47:56,739 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [607634234] [2023-11-17 22:47:56,740 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [607634234] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-17 22:47:56,740 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-17 22:47:56,740 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-11-17 22:47:56,740 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2066516635] [2023-11-17 22:47:56,740 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-17 22:47:56,741 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-11-17 22:47:56,742 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-17 22:47:56,743 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-11-17 22:47:56,743 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2023-11-17 22:47:56,743 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-17 22:47:56,745 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-11-17 22:47:56,745 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 32.90909090909091) internal successors, (362), 11 states have internal predecessors, (362), 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) [2023-11-17 22:47:56,746 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-17 22:47:56,746 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2023-11-17 22:47:56,746 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2023-11-17 22:47:56,746 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2023-11-17 22:47:56,746 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2023-11-17 22:47:56,746 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2023-11-17 22:47:56,747 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2023-11-17 22:47:56,747 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2023-11-17 22:47:56,747 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2023-11-17 22:47:56,747 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2023-11-17 22:47:56,747 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-17 22:47:57,504 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-17 22:47:57,504 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-17 22:47:57,504 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-17 22:47:57,504 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-17 22:47:57,505 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-11-17 22:47:57,505 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-17 22:47:57,505 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-17 22:47:57,505 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-17 22:47:57,505 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-17 22:47:57,505 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-11-17 22:47:57,506 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2023-11-17 22:47:57,506 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-11-17 22:47:57,506 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread2Err12ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err13ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err6ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2023-11-17 22:47:57,507 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-17 22:47:57,507 INFO L85 PathProgramCache]: Analyzing trace with hash 631450997, now seen corresponding path program 1 times [2023-11-17 22:47:57,507 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-17 22:47:57,507 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1535747034] [2023-11-17 22:47:57,507 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-17 22:47:57,507 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-17 22:47:57,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-17 22:47:57,934 INFO L134 CoverageAnalysis]: Checked inductivity of 318 backedges. 0 proven. 33 refuted. 0 times theorem prover too weak. 285 trivial. 0 not checked. [2023-11-17 22:47:57,935 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-17 22:47:57,935 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1535747034] [2023-11-17 22:47:57,935 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1535747034] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-17 22:47:57,935 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [204804752] [2023-11-17 22:47:57,936 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-17 22:47:57,936 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-17 22:47:57,936 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f627cddc-a39d-4b85-9fd8-841918221fa5/bin/ugemcutter-verify-ztSkJzofpW/z3 [2023-11-17 22:47:57,937 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f627cddc-a39d-4b85-9fd8-841918221fa5/bin/ugemcutter-verify-ztSkJzofpW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-17 22:47:57,939 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f627cddc-a39d-4b85-9fd8-841918221fa5/bin/ugemcutter-verify-ztSkJzofpW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-11-17 22:47:58,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-17 22:47:58,229 INFO L262 TraceCheckSpWp]: Trace formula consists of 819 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-17 22:47:58,237 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-17 22:47:58,325 INFO L134 CoverageAnalysis]: Checked inductivity of 318 backedges. 33 proven. 0 refuted. 0 times theorem prover too weak. 285 trivial. 0 not checked. [2023-11-17 22:47:58,325 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-17 22:47:58,326 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [204804752] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-17 22:47:58,326 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-17 22:47:58,326 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 8 [2023-11-17 22:47:58,329 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1026083285] [2023-11-17 22:47:58,329 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-17 22:47:58,330 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-17 22:47:58,331 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-17 22:47:58,333 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-17 22:47:58,333 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2023-11-17 22:47:58,333 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-17 22:47:58,335 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-11-17 22:47:58,335 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 71.0) internal successors, (355), 5 states have internal predecessors, (355), 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) [2023-11-17 22:47:58,336 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-17 22:47:58,336 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2023-11-17 22:47:58,336 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2023-11-17 22:47:58,336 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2023-11-17 22:47:58,336 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2023-11-17 22:47:58,337 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2023-11-17 22:47:58,337 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2023-11-17 22:47:58,337 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2023-11-17 22:47:58,337 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2023-11-17 22:47:58,337 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2023-11-17 22:47:58,337 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2023-11-17 22:47:58,338 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-17 22:47:58,609 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-17 22:47:58,609 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-17 22:47:58,609 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-17 22:47:58,610 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-17 22:47:58,610 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-11-17 22:47:58,610 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-17 22:47:58,610 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-17 22:47:58,610 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-17 22:47:58,610 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-17 22:47:58,611 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-11-17 22:47:58,611 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2023-11-17 22:47:58,611 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-17 22:47:58,642 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f627cddc-a39d-4b85-9fd8-841918221fa5/bin/ugemcutter-verify-ztSkJzofpW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-11-17 22:47:58,834 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f627cddc-a39d-4b85-9fd8-841918221fa5/bin/ugemcutter-verify-ztSkJzofpW/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2023-11-17 22:47:58,834 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread2Err12ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err13ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err6ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2023-11-17 22:47:58,835 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-17 22:47:58,835 INFO L85 PathProgramCache]: Analyzing trace with hash -744999530, now seen corresponding path program 1 times [2023-11-17 22:47:58,835 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-17 22:47:58,835 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1097830040] [2023-11-17 22:47:58,836 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-17 22:47:58,836 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-17 22:47:58,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-17 22:47:59,257 INFO L134 CoverageAnalysis]: Checked inductivity of 318 backedges. 0 proven. 33 refuted. 0 times theorem prover too weak. 285 trivial. 0 not checked. [2023-11-17 22:47:59,257 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-17 22:47:59,257 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1097830040] [2023-11-17 22:47:59,257 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1097830040] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-17 22:47:59,258 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [449738754] [2023-11-17 22:47:59,258 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-17 22:47:59,258 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-17 22:47:59,258 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f627cddc-a39d-4b85-9fd8-841918221fa5/bin/ugemcutter-verify-ztSkJzofpW/z3 [2023-11-17 22:47:59,260 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f627cddc-a39d-4b85-9fd8-841918221fa5/bin/ugemcutter-verify-ztSkJzofpW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-17 22:47:59,322 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f627cddc-a39d-4b85-9fd8-841918221fa5/bin/ugemcutter-verify-ztSkJzofpW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-11-17 22:47:59,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-17 22:47:59,667 INFO L262 TraceCheckSpWp]: Trace formula consists of 816 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-17 22:47:59,675 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-17 22:47:59,877 INFO L134 CoverageAnalysis]: Checked inductivity of 318 backedges. 33 proven. 0 refuted. 0 times theorem prover too weak. 285 trivial. 0 not checked. [2023-11-17 22:47:59,877 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-17 22:47:59,878 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [449738754] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-17 22:47:59,878 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-17 22:47:59,878 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 6 [2023-11-17 22:47:59,879 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2001774928] [2023-11-17 22:47:59,879 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-17 22:47:59,880 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-17 22:47:59,880 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-17 22:47:59,882 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-17 22:47:59,882 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2023-11-17 22:47:59,882 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-17 22:47:59,884 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-11-17 22:47:59,885 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 88.25) internal successors, (353), 5 states have internal predecessors, (353), 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) [2023-11-17 22:47:59,886 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-17 22:47:59,886 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2023-11-17 22:47:59,886 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2023-11-17 22:47:59,886 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2023-11-17 22:47:59,886 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2023-11-17 22:47:59,887 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2023-11-17 22:47:59,887 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2023-11-17 22:47:59,887 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2023-11-17 22:47:59,887 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2023-11-17 22:47:59,887 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2023-11-17 22:47:59,887 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2023-11-17 22:47:59,887 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2023-11-17 22:47:59,888 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-17 22:48:00,155 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-17 22:48:00,155 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-17 22:48:00,156 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-17 22:48:00,156 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-17 22:48:00,156 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-11-17 22:48:00,156 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-17 22:48:00,156 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-17 22:48:00,156 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-17 22:48:00,157 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-17 22:48:00,157 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-11-17 22:48:00,157 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2023-11-17 22:48:00,157 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-17 22:48:00,158 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-17 22:48:00,188 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f627cddc-a39d-4b85-9fd8-841918221fa5/bin/ugemcutter-verify-ztSkJzofpW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2023-11-17 22:48:00,381 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f627cddc-a39d-4b85-9fd8-841918221fa5/bin/ugemcutter-verify-ztSkJzofpW/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2023-11-17 22:48:00,382 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread2Err12ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err13ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err6ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2023-11-17 22:48:00,382 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-17 22:48:00,383 INFO L85 PathProgramCache]: Analyzing trace with hash -1620146126, now seen corresponding path program 1 times [2023-11-17 22:48:00,384 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-17 22:48:00,384 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [463561697] [2023-11-17 22:48:00,384 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-17 22:48:00,384 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-17 22:48:00,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-17 22:48:00,762 INFO L134 CoverageAnalysis]: Checked inductivity of 319 backedges. 0 proven. 34 refuted. 0 times theorem prover too weak. 285 trivial. 0 not checked. [2023-11-17 22:48:00,764 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-17 22:48:00,765 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [463561697] [2023-11-17 22:48:00,765 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [463561697] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-17 22:48:00,767 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1744191700] [2023-11-17 22:48:00,768 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-17 22:48:00,768 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-17 22:48:00,768 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f627cddc-a39d-4b85-9fd8-841918221fa5/bin/ugemcutter-verify-ztSkJzofpW/z3 [2023-11-17 22:48:00,770 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f627cddc-a39d-4b85-9fd8-841918221fa5/bin/ugemcutter-verify-ztSkJzofpW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-17 22:48:00,792 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f627cddc-a39d-4b85-9fd8-841918221fa5/bin/ugemcutter-verify-ztSkJzofpW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-11-17 22:48:01,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-17 22:48:01,073 INFO L262 TraceCheckSpWp]: Trace formula consists of 817 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-17 22:48:01,081 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-17 22:48:01,153 INFO L134 CoverageAnalysis]: Checked inductivity of 319 backedges. 34 proven. 0 refuted. 0 times theorem prover too weak. 285 trivial. 0 not checked. [2023-11-17 22:48:01,153 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-17 22:48:01,153 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1744191700] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-17 22:48:01,154 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-17 22:48:01,154 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2023-11-17 22:48:01,155 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [470866083] [2023-11-17 22:48:01,155 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-17 22:48:01,156 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-17 22:48:01,156 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-17 22:48:01,157 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-17 22:48:01,157 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2023-11-17 22:48:01,157 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-17 22:48:01,159 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-11-17 22:48:01,159 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 118.0) internal successors, (354), 4 states have internal predecessors, (354), 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) [2023-11-17 22:48:01,159 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-17 22:48:01,160 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2023-11-17 22:48:01,160 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2023-11-17 22:48:01,160 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2023-11-17 22:48:01,160 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2023-11-17 22:48:01,160 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2023-11-17 22:48:01,160 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2023-11-17 22:48:01,161 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2023-11-17 22:48:01,161 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2023-11-17 22:48:01,161 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2023-11-17 22:48:01,161 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2023-11-17 22:48:01,161 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2023-11-17 22:48:01,161 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2023-11-17 22:48:01,161 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-17 22:48:01,474 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-17 22:48:01,474 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-17 22:48:01,474 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-17 22:48:01,475 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-17 22:48:01,475 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-11-17 22:48:01,475 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-17 22:48:01,475 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-17 22:48:01,475 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-17 22:48:01,475 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-17 22:48:01,476 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-11-17 22:48:01,476 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2023-11-17 22:48:01,476 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-17 22:48:01,476 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-17 22:48:01,476 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-17 22:48:01,504 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f627cddc-a39d-4b85-9fd8-841918221fa5/bin/ugemcutter-verify-ztSkJzofpW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2023-11-17 22:48:01,691 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f627cddc-a39d-4b85-9fd8-841918221fa5/bin/ugemcutter-verify-ztSkJzofpW/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2023-11-17 22:48:01,691 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting thread2Err5ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread2Err12ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err13ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err6ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2023-11-17 22:48:01,691 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-17 22:48:01,692 INFO L85 PathProgramCache]: Analyzing trace with hash -928621525, now seen corresponding path program 1 times [2023-11-17 22:48:01,692 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-17 22:48:01,692 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [259290160] [2023-11-17 22:48:01,692 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-17 22:48:01,692 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-17 22:48:01,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-17 22:48:02,106 INFO L134 CoverageAnalysis]: Checked inductivity of 347 backedges. 0 proven. 62 refuted. 0 times theorem prover too weak. 285 trivial. 0 not checked. [2023-11-17 22:48:02,106 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-17 22:48:02,107 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [259290160] [2023-11-17 22:48:02,107 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [259290160] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-17 22:48:02,107 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1657343814] [2023-11-17 22:48:02,107 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-17 22:48:02,107 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-17 22:48:02,108 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f627cddc-a39d-4b85-9fd8-841918221fa5/bin/ugemcutter-verify-ztSkJzofpW/z3 [2023-11-17 22:48:02,109 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f627cddc-a39d-4b85-9fd8-841918221fa5/bin/ugemcutter-verify-ztSkJzofpW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-17 22:48:02,111 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f627cddc-a39d-4b85-9fd8-841918221fa5/bin/ugemcutter-verify-ztSkJzofpW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2023-11-17 22:48:02,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-17 22:48:02,403 INFO L262 TraceCheckSpWp]: Trace formula consists of 853 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-17 22:48:02,412 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-17 22:48:02,639 INFO L134 CoverageAnalysis]: Checked inductivity of 347 backedges. 0 proven. 62 refuted. 0 times theorem prover too weak. 285 trivial. 0 not checked. [2023-11-17 22:48:02,639 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-17 22:48:02,885 INFO L134 CoverageAnalysis]: Checked inductivity of 347 backedges. 0 proven. 62 refuted. 0 times theorem prover too weak. 285 trivial. 0 not checked. [2023-11-17 22:48:02,886 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1657343814] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-17 22:48:02,886 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-17 22:48:02,886 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 11 [2023-11-17 22:48:02,887 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [258848494] [2023-11-17 22:48:02,887 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-17 22:48:02,889 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-17 22:48:02,889 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-17 22:48:02,890 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-17 22:48:02,891 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2023-11-17 22:48:02,891 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-17 22:48:02,893 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-11-17 22:48:02,894 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 55.36363636363637) internal successors, (609), 12 states have internal predecessors, (609), 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) [2023-11-17 22:48:02,894 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-17 22:48:02,894 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2023-11-17 22:48:02,894 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2023-11-17 22:48:02,894 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2023-11-17 22:48:02,895 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2023-11-17 22:48:02,895 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2023-11-17 22:48:02,895 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2023-11-17 22:48:02,895 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2023-11-17 22:48:02,895 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2023-11-17 22:48:02,895 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2023-11-17 22:48:02,895 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2023-11-17 22:48:02,895 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2023-11-17 22:48:02,896 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2023-11-17 22:48:02,896 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2023-11-17 22:48:02,896 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-17 22:48:03,340 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-17 22:48:03,341 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-17 22:48:03,341 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-17 22:48:03,341 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-17 22:48:03,341 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-11-17 22:48:03,341 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-17 22:48:03,341 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-17 22:48:03,341 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-17 22:48:03,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-17 22:48:03,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-11-17 22:48:03,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2023-11-17 22:48:03,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-17 22:48:03,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-17 22:48:03,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-17 22:48:03,343 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2023-11-17 22:48:03,372 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f627cddc-a39d-4b85-9fd8-841918221fa5/bin/ugemcutter-verify-ztSkJzofpW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2023-11-17 22:48:03,567 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f627cddc-a39d-4b85-9fd8-841918221fa5/bin/ugemcutter-verify-ztSkJzofpW/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2023-11-17 22:48:03,568 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting thread2Err5ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread2Err12ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err13ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err6ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2023-11-17 22:48:03,568 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-17 22:48:03,569 INFO L85 PathProgramCache]: Analyzing trace with hash 366698460, now seen corresponding path program 2 times [2023-11-17 22:48:03,569 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-17 22:48:03,569 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2055279845] [2023-11-17 22:48:03,569 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-17 22:48:03,569 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-17 22:48:03,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-17 22:48:04,870 INFO L134 CoverageAnalysis]: Checked inductivity of 917 backedges. 0 proven. 632 refuted. 0 times theorem prover too weak. 285 trivial. 0 not checked. [2023-11-17 22:48:04,870 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-17 22:48:04,870 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2055279845] [2023-11-17 22:48:04,870 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2055279845] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-17 22:48:04,871 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1179399052] [2023-11-17 22:48:04,871 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-17 22:48:04,871 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-17 22:48:04,871 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f627cddc-a39d-4b85-9fd8-841918221fa5/bin/ugemcutter-verify-ztSkJzofpW/z3 [2023-11-17 22:48:04,875 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f627cddc-a39d-4b85-9fd8-841918221fa5/bin/ugemcutter-verify-ztSkJzofpW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-17 22:48:04,898 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f627cddc-a39d-4b85-9fd8-841918221fa5/bin/ugemcutter-verify-ztSkJzofpW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2023-11-17 22:48:05,161 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-11-17 22:48:05,161 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-17 22:48:05,164 INFO L262 TraceCheckSpWp]: Trace formula consists of 561 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-17 22:48:05,175 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-17 22:48:05,316 INFO L134 CoverageAnalysis]: Checked inductivity of 917 backedges. 232 proven. 0 refuted. 0 times theorem prover too weak. 685 trivial. 0 not checked. [2023-11-17 22:48:05,316 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-17 22:48:05,316 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1179399052] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-17 22:48:05,316 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-17 22:48:05,317 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [11] total 13 [2023-11-17 22:48:05,318 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1376555217] [2023-11-17 22:48:05,318 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-17 22:48:05,320 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-17 22:48:05,320 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-17 22:48:05,321 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-17 22:48:05,322 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=137, Unknown=0, NotChecked=0, Total=182 [2023-11-17 22:48:05,322 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-17 22:48:05,326 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-11-17 22:48:05,327 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 75.8) internal successors, (379), 6 states have internal predecessors, (379), 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) [2023-11-17 22:48:05,327 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-17 22:48:05,327 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2023-11-17 22:48:05,327 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2023-11-17 22:48:05,327 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2023-11-17 22:48:05,327 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2023-11-17 22:48:05,328 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2023-11-17 22:48:05,328 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2023-11-17 22:48:05,328 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2023-11-17 22:48:05,328 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2023-11-17 22:48:05,328 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2023-11-17 22:48:05,328 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2023-11-17 22:48:05,328 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2023-11-17 22:48:05,329 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2023-11-17 22:48:05,329 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2023-11-17 22:48:05,329 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2023-11-17 22:48:05,329 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-17 22:48:06,140 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-17 22:48:06,140 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-17 22:48:06,141 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-17 22:48:06,141 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-17 22:48:06,141 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-11-17 22:48:06,141 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-17 22:48:06,141 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-17 22:48:06,141 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-17 22:48:06,141 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-17 22:48:06,142 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2023-11-17 22:48:06,142 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2023-11-17 22:48:06,142 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-17 22:48:06,142 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-17 22:48:06,142 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-17 22:48:06,142 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2023-11-17 22:48:06,143 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-17 22:48:06,172 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f627cddc-a39d-4b85-9fd8-841918221fa5/bin/ugemcutter-verify-ztSkJzofpW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2023-11-17 22:48:06,355 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f627cddc-a39d-4b85-9fd8-841918221fa5/bin/ugemcutter-verify-ztSkJzofpW/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-17 22:48:06,356 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting thread2Err11ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread2Err12ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err13ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err6ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2023-11-17 22:48:06,356 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-17 22:48:06,356 INFO L85 PathProgramCache]: Analyzing trace with hash -55203494, now seen corresponding path program 1 times [2023-11-17 22:48:06,357 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-17 22:48:06,357 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1997711749] [2023-11-17 22:48:06,357 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-17 22:48:06,357 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-17 22:48:06,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-17 22:48:06,726 INFO L134 CoverageAnalysis]: Checked inductivity of 287 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 285 trivial. 0 not checked. [2023-11-17 22:48:06,727 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-17 22:48:06,727 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1997711749] [2023-11-17 22:48:06,727 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1997711749] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-17 22:48:06,727 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-17 22:48:06,727 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-17 22:48:06,728 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1884272903] [2023-11-17 22:48:06,728 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-17 22:48:06,729 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-17 22:48:06,729 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-17 22:48:06,730 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-17 22:48:06,730 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-17 22:48:06,730 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-17 22:48:06,732 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-11-17 22:48:06,732 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 72.0) internal successors, (360), 5 states have internal predecessors, (360), 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) [2023-11-17 22:48:06,732 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-17 22:48:06,733 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2023-11-17 22:48:06,733 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2023-11-17 22:48:06,733 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2023-11-17 22:48:06,733 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2023-11-17 22:48:06,733 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2023-11-17 22:48:06,733 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2023-11-17 22:48:06,733 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2023-11-17 22:48:06,733 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2023-11-17 22:48:06,734 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2023-11-17 22:48:06,734 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2023-11-17 22:48:06,734 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2023-11-17 22:48:06,734 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2023-11-17 22:48:06,734 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2023-11-17 22:48:06,734 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2023-11-17 22:48:06,734 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2023-11-17 22:48:06,735 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-17 22:48:07,219 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-17 22:48:07,219 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-17 22:48:07,220 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-17 22:48:07,220 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-17 22:48:07,220 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-11-17 22:48:07,220 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-17 22:48:07,220 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-17 22:48:07,220 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-17 22:48:07,220 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-17 22:48:07,221 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2023-11-17 22:48:07,221 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2023-11-17 22:48:07,221 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-17 22:48:07,221 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-17 22:48:07,222 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-17 22:48:07,222 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2023-11-17 22:48:07,222 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-17 22:48:07,222 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-17 22:48:07,222 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2023-11-17 22:48:07,223 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting thread2Err11ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread2Err12ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err13ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err6ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2023-11-17 22:48:07,223 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-17 22:48:07,223 INFO L85 PathProgramCache]: Analyzing trace with hash 1400753095, now seen corresponding path program 1 times [2023-11-17 22:48:07,224 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-17 22:48:07,224 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [502902499] [2023-11-17 22:48:07,224 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-17 22:48:07,224 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-17 22:48:07,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-17 22:48:08,052 INFO L134 CoverageAnalysis]: Checked inductivity of 287 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 285 trivial. 0 not checked. [2023-11-17 22:48:08,053 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-17 22:48:08,053 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [502902499] [2023-11-17 22:48:08,053 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [502902499] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-17 22:48:08,053 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-17 22:48:08,054 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-17 22:48:08,054 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1256644955] [2023-11-17 22:48:08,054 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-17 22:48:08,055 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-17 22:48:08,055 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-17 22:48:08,056 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-17 22:48:08,057 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2023-11-17 22:48:08,057 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-17 22:48:08,058 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-11-17 22:48:08,059 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 51.142857142857146) internal successors, (358), 7 states have internal predecessors, (358), 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) [2023-11-17 22:48:08,059 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-17 22:48:08,059 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2023-11-17 22:48:08,059 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2023-11-17 22:48:08,060 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2023-11-17 22:48:08,062 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2023-11-17 22:48:08,062 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2023-11-17 22:48:08,062 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2023-11-17 22:48:08,062 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2023-11-17 22:48:08,063 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2023-11-17 22:48:08,063 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2023-11-17 22:48:08,063 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2023-11-17 22:48:08,063 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2023-11-17 22:48:08,063 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2023-11-17 22:48:08,063 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2023-11-17 22:48:08,063 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2023-11-17 22:48:08,064 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2023-11-17 22:48:08,064 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2023-11-17 22:48:08,064 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-17 22:48:08,721 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-17 22:48:08,721 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-17 22:48:08,721 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-17 22:48:08,721 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-17 22:48:08,721 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-11-17 22:48:08,722 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-17 22:48:08,722 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-17 22:48:08,722 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-17 22:48:08,722 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-17 22:48:08,722 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2023-11-17 22:48:08,722 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2023-11-17 22:48:08,723 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-17 22:48:08,723 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-17 22:48:08,723 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-17 22:48:08,723 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2023-11-17 22:48:08,723 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-17 22:48:08,723 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-17 22:48:08,723 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-17 22:48:08,724 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2023-11-17 22:48:08,724 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting thread2Err11ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread2Err12ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err13ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err6ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2023-11-17 22:48:08,724 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-17 22:48:08,725 INFO L85 PathProgramCache]: Analyzing trace with hash 1328341589, now seen corresponding path program 1 times [2023-11-17 22:48:08,725 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-17 22:48:08,725 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [127282344] [2023-11-17 22:48:08,726 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-17 22:48:08,726 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-17 22:48:08,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-17 22:48:09,510 INFO L134 CoverageAnalysis]: Checked inductivity of 287 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 285 trivial. 0 not checked. [2023-11-17 22:48:09,511 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-17 22:48:09,511 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [127282344] [2023-11-17 22:48:09,511 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [127282344] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-17 22:48:09,511 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-17 22:48:09,511 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-17 22:48:09,512 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [628522533] [2023-11-17 22:48:09,512 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-17 22:48:09,513 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-17 22:48:09,513 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-17 22:48:09,514 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-17 22:48:09,514 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-11-17 22:48:09,514 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-17 22:48:09,516 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-11-17 22:48:09,516 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 51.42857142857143) internal successors, (360), 7 states have internal predecessors, (360), 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) [2023-11-17 22:48:09,516 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-17 22:48:09,516 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2023-11-17 22:48:09,517 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2023-11-17 22:48:09,517 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2023-11-17 22:48:09,517 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2023-11-17 22:48:09,517 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2023-11-17 22:48:09,517 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2023-11-17 22:48:09,517 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2023-11-17 22:48:09,517 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2023-11-17 22:48:09,517 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2023-11-17 22:48:09,518 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 23 states. [2023-11-17 22:48:09,518 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2023-11-17 22:48:09,518 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2023-11-17 22:48:09,518 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2023-11-17 22:48:09,518 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2023-11-17 22:48:09,518 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2023-11-17 22:48:09,518 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2023-11-17 22:48:09,518 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2023-11-17 22:48:09,519 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-17 22:48:10,173 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-17 22:48:10,173 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-17 22:48:10,173 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-17 22:48:10,173 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-17 22:48:10,173 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-11-17 22:48:10,173 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-17 22:48:10,174 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-17 22:48:10,174 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-17 22:48:10,174 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-17 22:48:10,174 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2023-11-17 22:48:10,174 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2023-11-17 22:48:10,174 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-17 22:48:10,174 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-17 22:48:10,175 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-17 22:48:10,175 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2023-11-17 22:48:10,175 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-17 22:48:10,175 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-17 22:48:10,175 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-17 22:48:10,175 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-17 22:48:10,176 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2023-11-17 22:48:10,176 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting thread2Err11ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread2Err12ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err13ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err6ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2023-11-17 22:48:10,176 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-17 22:48:10,177 INFO L85 PathProgramCache]: Analyzing trace with hash -186721830, now seen corresponding path program 1 times [2023-11-17 22:48:10,177 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-17 22:48:10,177 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1558996686] [2023-11-17 22:48:10,177 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-17 22:48:10,177 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-17 22:48:10,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-17 22:48:11,006 INFO L134 CoverageAnalysis]: Checked inductivity of 287 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 285 trivial. 0 not checked. [2023-11-17 22:48:11,006 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-17 22:48:11,007 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1558996686] [2023-11-17 22:48:11,007 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1558996686] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-17 22:48:11,007 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-17 22:48:11,008 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-17 22:48:11,008 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [173384493] [2023-11-17 22:48:11,008 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-17 22:48:11,009 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-17 22:48:11,009 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-17 22:48:11,011 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-17 22:48:11,011 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-11-17 22:48:11,011 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-17 22:48:11,013 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-11-17 22:48:11,013 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 51.142857142857146) internal successors, (358), 7 states have internal predecessors, (358), 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) [2023-11-17 22:48:11,014 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-17 22:48:11,014 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2023-11-17 22:48:11,014 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2023-11-17 22:48:11,014 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2023-11-17 22:48:11,014 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2023-11-17 22:48:11,015 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2023-11-17 22:48:11,015 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2023-11-17 22:48:11,015 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2023-11-17 22:48:11,015 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2023-11-17 22:48:11,015 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2023-11-17 22:48:11,015 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 23 states. [2023-11-17 22:48:11,016 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2023-11-17 22:48:11,016 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2023-11-17 22:48:11,016 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2023-11-17 22:48:11,016 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2023-11-17 22:48:11,016 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2023-11-17 22:48:11,016 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2023-11-17 22:48:11,017 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2023-11-17 22:48:11,017 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2023-11-17 22:48:11,017 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-17 22:48:11,733 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-17 22:48:11,733 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-17 22:48:11,733 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-17 22:48:11,734 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-17 22:48:11,734 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-11-17 22:48:11,734 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-17 22:48:11,734 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-17 22:48:11,734 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-17 22:48:11,734 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-17 22:48:11,734 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2023-11-17 22:48:11,735 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2023-11-17 22:48:11,735 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-17 22:48:11,735 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-17 22:48:11,735 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-17 22:48:11,735 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2023-11-17 22:48:11,735 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-17 22:48:11,735 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-17 22:48:11,736 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-17 22:48:11,736 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-17 22:48:11,736 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-17 22:48:11,736 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2023-11-17 22:48:11,737 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting thread2Err11ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread2Err12ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err13ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err6ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2023-11-17 22:48:11,737 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-17 22:48:11,737 INFO L85 PathProgramCache]: Analyzing trace with hash 1583056769, now seen corresponding path program 1 times [2023-11-17 22:48:11,738 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-17 22:48:11,738 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1586587962] [2023-11-17 22:48:11,738 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-17 22:48:11,738 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-17 22:48:11,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-17 22:48:12,770 INFO L134 CoverageAnalysis]: Checked inductivity of 287 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 285 trivial. 0 not checked. [2023-11-17 22:48:12,770 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-17 22:48:12,771 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1586587962] [2023-11-17 22:48:12,771 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1586587962] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-17 22:48:12,771 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-17 22:48:12,771 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-11-17 22:48:12,771 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [306513156] [2023-11-17 22:48:12,772 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-17 22:48:12,772 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-17 22:48:12,773 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-17 22:48:12,774 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-17 22:48:12,774 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2023-11-17 22:48:12,774 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-17 22:48:12,775 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-11-17 22:48:12,776 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 35.8) internal successors, (358), 10 states have internal predecessors, (358), 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) [2023-11-17 22:48:12,776 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-17 22:48:12,776 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2023-11-17 22:48:12,777 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2023-11-17 22:48:12,777 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2023-11-17 22:48:12,777 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2023-11-17 22:48:12,777 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2023-11-17 22:48:12,777 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2023-11-17 22:48:12,777 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2023-11-17 22:48:12,777 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2023-11-17 22:48:12,777 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2023-11-17 22:48:12,778 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 23 states. [2023-11-17 22:48:12,778 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2023-11-17 22:48:12,778 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2023-11-17 22:48:12,778 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2023-11-17 22:48:12,778 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2023-11-17 22:48:12,778 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2023-11-17 22:48:12,778 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2023-11-17 22:48:12,778 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2023-11-17 22:48:12,779 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2023-11-17 22:48:12,779 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2023-11-17 22:48:12,779 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-17 22:48:14,199 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-17 22:48:14,200 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-17 22:48:14,200 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-17 22:48:14,200 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-17 22:48:14,200 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-11-17 22:48:14,200 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-17 22:48:14,201 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-17 22:48:14,201 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-17 22:48:14,201 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-17 22:48:14,201 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2023-11-17 22:48:14,201 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2023-11-17 22:48:14,201 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-17 22:48:14,201 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-17 22:48:14,201 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-17 22:48:14,202 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2023-11-17 22:48:14,202 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-17 22:48:14,202 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-17 22:48:14,202 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-17 22:48:14,202 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-17 22:48:14,202 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-17 22:48:14,203 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2023-11-17 22:48:14,203 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2023-11-17 22:48:14,203 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting thread2Err11ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread2Err12ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err13ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err6ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2023-11-17 22:48:14,210 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-17 22:48:14,211 INFO L85 PathProgramCache]: Analyzing trace with hash 902995712, now seen corresponding path program 1 times [2023-11-17 22:48:14,211 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-17 22:48:14,211 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1452860867] [2023-11-17 22:48:14,211 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-17 22:48:14,212 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-17 22:48:14,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-17 22:48:14,613 INFO L134 CoverageAnalysis]: Checked inductivity of 287 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 285 trivial. 0 not checked. [2023-11-17 22:48:14,614 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-17 22:48:14,614 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1452860867] [2023-11-17 22:48:14,614 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1452860867] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-17 22:48:14,614 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-17 22:48:14,615 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-17 22:48:14,615 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1533521046] [2023-11-17 22:48:14,615 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-17 22:48:14,616 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-17 22:48:14,616 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-17 22:48:14,617 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-17 22:48:14,617 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-17 22:48:14,618 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-17 22:48:14,620 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-11-17 22:48:14,620 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 71.2) internal successors, (356), 5 states have internal predecessors, (356), 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) [2023-11-17 22:48:14,621 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-17 22:48:14,621 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2023-11-17 22:48:14,621 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2023-11-17 22:48:14,621 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2023-11-17 22:48:14,621 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2023-11-17 22:48:14,621 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2023-11-17 22:48:14,621 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2023-11-17 22:48:14,622 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2023-11-17 22:48:14,622 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2023-11-17 22:48:14,622 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2023-11-17 22:48:14,622 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 23 states. [2023-11-17 22:48:14,622 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2023-11-17 22:48:14,622 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2023-11-17 22:48:14,622 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2023-11-17 22:48:14,623 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2023-11-17 22:48:14,623 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2023-11-17 22:48:14,623 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2023-11-17 22:48:14,623 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2023-11-17 22:48:14,623 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2023-11-17 22:48:14,623 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2023-11-17 22:48:14,623 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2023-11-17 22:48:14,623 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-17 22:48:15,341 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-17 22:48:15,341 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-17 22:48:15,343 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-17 22:48:15,344 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-17 22:48:15,344 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-11-17 22:48:15,344 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-17 22:48:15,344 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-17 22:48:15,344 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-17 22:48:15,344 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-17 22:48:15,344 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2023-11-17 22:48:15,345 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2023-11-17 22:48:15,345 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-17 22:48:15,345 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-17 22:48:15,345 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-17 22:48:15,345 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2023-11-17 22:48:15,345 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-17 22:48:15,345 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-17 22:48:15,345 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-17 22:48:15,346 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-17 22:48:15,346 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-17 22:48:15,346 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2023-11-17 22:48:15,346 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-17 22:48:15,346 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2023-11-17 22:48:15,347 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting thread2Err11ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread2Err12ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err13ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err6ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2023-11-17 22:48:15,347 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-17 22:48:15,347 INFO L85 PathProgramCache]: Analyzing trace with hash 143153791, now seen corresponding path program 1 times [2023-11-17 22:48:15,348 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-17 22:48:15,348 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1311538696] [2023-11-17 22:48:15,348 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-17 22:48:15,348 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-17 22:48:15,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-17 22:48:15,950 INFO L134 CoverageAnalysis]: Checked inductivity of 287 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 285 trivial. 0 not checked. [2023-11-17 22:48:15,950 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-17 22:48:15,950 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1311538696] [2023-11-17 22:48:15,950 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1311538696] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-17 22:48:15,951 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [499097067] [2023-11-17 22:48:15,951 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-17 22:48:15,951 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-17 22:48:15,951 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f627cddc-a39d-4b85-9fd8-841918221fa5/bin/ugemcutter-verify-ztSkJzofpW/z3 [2023-11-17 22:48:15,952 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f627cddc-a39d-4b85-9fd8-841918221fa5/bin/ugemcutter-verify-ztSkJzofpW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-17 22:48:15,973 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f627cddc-a39d-4b85-9fd8-841918221fa5/bin/ugemcutter-verify-ztSkJzofpW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2023-11-17 22:48:16,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-17 22:48:16,325 INFO L262 TraceCheckSpWp]: Trace formula consists of 823 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-17 22:48:16,333 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-17 22:48:16,495 INFO L134 CoverageAnalysis]: Checked inductivity of 287 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 287 trivial. 0 not checked. [2023-11-17 22:48:16,496 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-17 22:48:16,496 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [499097067] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-17 22:48:16,496 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-17 22:48:16,497 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [8] total 12 [2023-11-17 22:48:16,497 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1860312581] [2023-11-17 22:48:16,497 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-17 22:48:16,498 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-17 22:48:16,498 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-17 22:48:16,499 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-17 22:48:16,500 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2023-11-17 22:48:16,500 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-17 22:48:16,501 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-11-17 22:48:16,502 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 71.0) internal successors, (355), 6 states have internal predecessors, (355), 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) [2023-11-17 22:48:16,502 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-17 22:48:16,502 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2023-11-17 22:48:16,504 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2023-11-17 22:48:16,504 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2023-11-17 22:48:16,504 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2023-11-17 22:48:16,504 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2023-11-17 22:48:16,504 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2023-11-17 22:48:16,505 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2023-11-17 22:48:16,505 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2023-11-17 22:48:16,505 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2023-11-17 22:48:16,505 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 23 states. [2023-11-17 22:48:16,505 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2023-11-17 22:48:16,505 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2023-11-17 22:48:16,505 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2023-11-17 22:48:16,506 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2023-11-17 22:48:16,506 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2023-11-17 22:48:16,506 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2023-11-17 22:48:16,506 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2023-11-17 22:48:16,506 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2023-11-17 22:48:16,506 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2023-11-17 22:48:16,506 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2023-11-17 22:48:16,507 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2023-11-17 22:48:16,507 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states.