/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-POR-NewStatesSleepPersistentFixedOrder-NoLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-deagle/reorder_c11_bad-10.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.mcr-reduction-44898dd [2022-02-09 13:21:49,251 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-02-09 13:21:49,252 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-02-09 13:21:49,282 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-02-09 13:21:49,288 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-02-09 13:21:49,288 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-02-09 13:21:49,289 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-02-09 13:21:49,289 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-02-09 13:21:49,290 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-02-09 13:21:49,290 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-02-09 13:21:49,291 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-02-09 13:21:49,292 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-02-09 13:21:49,293 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-02-09 13:21:49,294 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-02-09 13:21:49,295 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-02-09 13:21:49,295 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-02-09 13:21:49,314 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-02-09 13:21:49,317 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-02-09 13:21:49,317 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-02-09 13:21:49,318 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-02-09 13:21:49,318 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-02-09 13:21:49,333 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-02-09 13:21:49,333 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-02-09 13:21:49,334 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-02-09 13:21:49,334 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-02-09 13:21:49,334 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-02-09 13:21:49,335 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-02-09 13:21:49,335 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-02-09 13:21:49,336 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-POR-NewStatesSleepPersistentFixedOrder-NoLbe.epf [2022-02-09 13:21:49,353 INFO L113 SettingsManager]: Loading preferences was successful [2022-02-09 13:21:49,354 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-02-09 13:21:49,354 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-02-09 13:21:49,354 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-02-09 13:21:49,354 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-02-09 13:21:49,354 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-02-09 13:21:49,355 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-02-09 13:21:49,355 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-02-09 13:21:49,355 INFO L138 SettingsManager]: * Use SBE=true [2022-02-09 13:21:49,355 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-02-09 13:21:49,355 INFO L138 SettingsManager]: * sizeof long=4 [2022-02-09 13:21:49,355 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-02-09 13:21:49,356 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-02-09 13:21:49,356 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-02-09 13:21:49,356 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-02-09 13:21:49,356 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-02-09 13:21:49,356 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-02-09 13:21:49,356 INFO L138 SettingsManager]: * sizeof long double=12 [2022-02-09 13:21:49,356 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-02-09 13:21:49,356 INFO L138 SettingsManager]: * Use constant arrays=true [2022-02-09 13:21:49,356 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-02-09 13:21:49,357 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-02-09 13:21:49,357 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-02-09 13:21:49,357 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-02-09 13:21:49,357 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-02-09 13:21:49,357 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-09 13:21:49,357 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-02-09 13:21:49,357 INFO L138 SettingsManager]: * Construct finite automaton lazily=true [2022-02-09 13:21:49,357 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-02-09 13:21:49,358 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-02-09 13:21:49,358 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-02-09 13:21:49,358 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-02-09 13:21:49,358 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-02-09 13:21:49,358 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2022-02-09 13:21:49,358 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-02-09 13:21:49,358 INFO L138 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2022-02-09 13:21:49,358 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2022-02-09 13:21:49,359 INFO L138 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:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-02-09 13:21:49,503 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-02-09 13:21:49,533 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-02-09 13:21:49,536 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-02-09 13:21:49,537 INFO L271 PluginConnector]: Initializing CDTParser... [2022-02-09 13:21:49,537 INFO L275 PluginConnector]: CDTParser initialized [2022-02-09 13:21:49,538 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-deagle/reorder_c11_bad-10.i [2022-02-09 13:21:49,599 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5aae36298/9af44f8902124f898d49166f003c6df0/FLAG43722edd4 [2022-02-09 13:21:49,943 INFO L306 CDTParser]: Found 1 translation units. [2022-02-09 13:21:49,944 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-deagle/reorder_c11_bad-10.i [2022-02-09 13:21:49,954 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5aae36298/9af44f8902124f898d49166f003c6df0/FLAG43722edd4 [2022-02-09 13:21:50,346 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5aae36298/9af44f8902124f898d49166f003c6df0 [2022-02-09 13:21:50,348 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-02-09 13:21:50,349 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-02-09 13:21:50,350 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-02-09 13:21:50,350 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-02-09 13:21:50,356 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-02-09 13:21:50,357 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.02 01:21:50" (1/1) ... [2022-02-09 13:21:50,357 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1d8ac4d3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.02 01:21:50, skipping insertion in model container [2022-02-09 13:21:50,357 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.02 01:21:50" (1/1) ... [2022-02-09 13:21:50,367 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-02-09 13:21:50,390 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-02-09 13:21:50,638 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-deagle/reorder_c11_bad-10.i[30190,30203] [2022-02-09 13:21:50,649 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-09 13:21:50,654 INFO L203 MainTranslator]: Completed pre-run [2022-02-09 13:21:50,680 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-deagle/reorder_c11_bad-10.i[30190,30203] [2022-02-09 13:21:50,687 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-09 13:21:50,710 INFO L208 MainTranslator]: Completed translation [2022-02-09 13:21:50,711 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.02 01:21:50 WrapperNode [2022-02-09 13:21:50,711 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-02-09 13:21:50,711 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-02-09 13:21:50,712 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-02-09 13:21:50,712 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-02-09 13:21:50,716 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.02 01:21:50" (1/1) ... [2022-02-09 13:21:50,724 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.02 01:21:50" (1/1) ... [2022-02-09 13:21:50,736 INFO L137 Inliner]: procedures = 163, calls = 21, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 71 [2022-02-09 13:21:50,736 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-02-09 13:21:50,737 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-02-09 13:21:50,737 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-02-09 13:21:50,737 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-02-09 13:21:50,742 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.02 01:21:50" (1/1) ... [2022-02-09 13:21:50,742 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.02 01:21:50" (1/1) ... [2022-02-09 13:21:50,744 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.02 01:21:50" (1/1) ... [2022-02-09 13:21:50,745 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.02 01:21:50" (1/1) ... [2022-02-09 13:21:50,749 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.02 01:21:50" (1/1) ... [2022-02-09 13:21:50,751 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.02 01:21:50" (1/1) ... [2022-02-09 13:21:50,752 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.02 01:21:50" (1/1) ... [2022-02-09 13:21:50,754 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-02-09 13:21:50,754 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-02-09 13:21:50,754 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-02-09 13:21:50,754 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-02-09 13:21:50,763 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.02 01:21:50" (1/1) ... [2022-02-09 13:21:50,775 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-09 13:21:50,784 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-09 13:21:50,795 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-02-09 13:21:50,804 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-02-09 13:21:50,819 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-02-09 13:21:50,819 INFO L130 BoogieDeclarations]: Found specification of procedure setThread [2022-02-09 13:21:50,819 INFO L138 BoogieDeclarations]: Found implementation of procedure setThread [2022-02-09 13:21:50,819 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-02-09 13:21:50,819 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-02-09 13:21:50,819 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-02-09 13:21:50,820 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-02-09 13:21:50,820 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-02-09 13:21:50,820 INFO L130 BoogieDeclarations]: Found specification of procedure checkThread [2022-02-09 13:21:50,820 INFO L138 BoogieDeclarations]: Found implementation of procedure checkThread [2022-02-09 13:21:50,820 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-02-09 13:21:50,820 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-02-09 13:21:50,820 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-02-09 13:21:50,820 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-02-09 13:21:50,821 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-02-09 13:21:50,889 INFO L234 CfgBuilder]: Building ICFG [2022-02-09 13:21:50,890 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-02-09 13:21:51,074 INFO L275 CfgBuilder]: Performing block encoding [2022-02-09 13:21:51,079 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-02-09 13:21:51,079 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2022-02-09 13:21:51,080 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.02 01:21:51 BoogieIcfgContainer [2022-02-09 13:21:51,080 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-02-09 13:21:51,081 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-02-09 13:21:51,081 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-02-09 13:21:51,089 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-02-09 13:21:51,089 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.02 01:21:50" (1/3) ... [2022-02-09 13:21:51,090 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5ed82d5d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.02 01:21:51, skipping insertion in model container [2022-02-09 13:21:51,090 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.02 01:21:50" (2/3) ... [2022-02-09 13:21:51,090 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5ed82d5d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.02 01:21:51, skipping insertion in model container [2022-02-09 13:21:51,090 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.02 01:21:51" (3/3) ... [2022-02-09 13:21:51,091 INFO L111 eAbstractionObserver]: Analyzing ICFG reorder_c11_bad-10.i [2022-02-09 13:21:51,094 WARN L150 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-02-09 13:21:51,094 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-02-09 13:21:51,094 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-02-09 13:21:51,094 INFO L534 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-02-09 13:21:51,113 WARN L322 ript$VariableManager]: TermVariabe |setThreadThread1of1ForFork0_#in~param.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 13:21:51,113 WARN L322 ript$VariableManager]: TermVariabe |setThreadThread1of1ForFork0_#in~param.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 13:21:51,113 WARN L322 ript$VariableManager]: TermVariabe setThreadThread1of1ForFork0_~param.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 13:21:51,113 WARN L322 ript$VariableManager]: TermVariabe setThreadThread1of1ForFork0_~param.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 13:21:51,113 WARN L322 ript$VariableManager]: TermVariabe |setThreadThread1of1ForFork0_#in~param.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 13:21:51,113 WARN L322 ript$VariableManager]: TermVariabe |setThreadThread1of1ForFork0_#in~param.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 13:21:51,114 WARN L322 ript$VariableManager]: TermVariabe setThreadThread1of1ForFork0_~param.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 13:21:51,114 WARN L322 ript$VariableManager]: TermVariabe setThreadThread1of1ForFork0_~param.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 13:21:51,114 WARN L322 ript$VariableManager]: TermVariabe |setThreadThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 13:21:51,114 WARN L322 ript$VariableManager]: TermVariabe |setThreadThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 13:21:51,114 WARN L322 ript$VariableManager]: TermVariabe |setThreadThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 13:21:51,114 WARN L322 ript$VariableManager]: TermVariabe |setThreadThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 13:21:51,115 WARN L322 ript$VariableManager]: TermVariabe |checkThreadThread1of1ForFork1_#in~param.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 13:21:51,115 WARN L322 ript$VariableManager]: TermVariabe |checkThreadThread1of1ForFork1_#in~param.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 13:21:51,115 WARN L322 ript$VariableManager]: TermVariabe checkThreadThread1of1ForFork1_~param.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 13:21:51,115 WARN L322 ript$VariableManager]: TermVariabe checkThreadThread1of1ForFork1_~param.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 13:21:51,115 WARN L322 ript$VariableManager]: TermVariabe |checkThreadThread1of1ForFork1_#in~param.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 13:21:51,115 WARN L322 ript$VariableManager]: TermVariabe |checkThreadThread1of1ForFork1_#in~param.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 13:21:51,115 WARN L322 ript$VariableManager]: TermVariabe checkThreadThread1of1ForFork1_~param.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 13:21:51,115 WARN L322 ript$VariableManager]: TermVariabe checkThreadThread1of1ForFork1_~param.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 13:21:51,116 WARN L322 ript$VariableManager]: TermVariabe |checkThreadThread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 13:21:51,116 WARN L322 ript$VariableManager]: TermVariabe |checkThreadThread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 13:21:51,116 WARN L322 ript$VariableManager]: TermVariabe |checkThreadThread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 13:21:51,116 WARN L322 ript$VariableManager]: TermVariabe |checkThreadThread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 13:21:51,118 WARN L322 ript$VariableManager]: TermVariabe |setThreadThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 13:21:51,118 WARN L322 ript$VariableManager]: TermVariabe |setThreadThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 13:21:51,118 WARN L322 ript$VariableManager]: TermVariabe setThreadThread1of1ForFork0_~param.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 13:21:51,118 WARN L322 ript$VariableManager]: TermVariabe setThreadThread1of1ForFork0_~param.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 13:21:51,120 WARN L322 ript$VariableManager]: TermVariabe |checkThreadThread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 13:21:51,120 WARN L322 ript$VariableManager]: TermVariabe |checkThreadThread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 13:21:51,120 WARN L322 ript$VariableManager]: TermVariabe checkThreadThread1of1ForFork1_~param.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 13:21:51,120 WARN L322 ript$VariableManager]: TermVariabe checkThreadThread1of1ForFork1_~param.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 13:21:51,124 INFO L148 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2022-02-09 13:21:51,152 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-02-09 13:21:51,152 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-09 13:21:51,153 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2022-02-09 13:21:51,154 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Waiting until timeout for monitored process [2022-02-09 13:21:51,177 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == checkThreadThread1of1ForFork1 ======== [2022-02-09 13:21:51,182 INFO L339 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, mLazyFiniteAutomaton=true, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2022-02-09 13:21:51,182 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-02-09 13:21:51,265 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting checkThreadErr0ASSERT_VIOLATIONERROR_FUNCTION === [checkThreadErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-09 13:21:51,269 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 13:21:51,270 INFO L85 PathProgramCache]: Analyzing trace with hash -211201094, now seen corresponding path program 1 times [2022-02-09 13:21:51,276 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 13:21:51,277 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1464284997] [2022-02-09 13:21:51,277 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 13:21:51,277 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 13:21:51,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 13:21:51,413 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 13:21:51,414 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 13:21:51,414 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1464284997] [2022-02-09 13:21:51,414 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1464284997] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 13:21:51,415 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 13:21:51,415 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-02-09 13:21:51,416 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [846470899] [2022-02-09 13:21:51,416 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 13:21:51,419 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-02-09 13:21:51,419 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 13:21:51,432 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-02-09 13:21:51,433 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-02-09 13:21:51,433 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-09 13:21:51,434 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-09 13:21:51,435 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 16.0) internal successors, (32), 2 states have internal predecessors, (32), 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) [2022-02-09 13:21:51,435 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-09 13:21:51,443 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-09 13:21:51,443 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-02-09 13:21:51,443 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting checkThreadErr0ASSERT_VIOLATIONERROR_FUNCTION === [checkThreadErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-09 13:21:51,444 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 13:21:51,444 INFO L85 PathProgramCache]: Analyzing trace with hash -407714599, now seen corresponding path program 1 times [2022-02-09 13:21:51,444 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 13:21:51,444 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [878906495] [2022-02-09 13:21:51,444 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 13:21:51,445 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 13:21:51,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 13:21:51,511 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 13:21:51,512 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 13:21:51,512 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [878906495] [2022-02-09 13:21:51,512 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [878906495] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 13:21:51,512 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 13:21:51,512 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-02-09 13:21:51,512 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [34887138] [2022-02-09 13:21:51,512 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 13:21:51,513 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-02-09 13:21:51,513 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 13:21:51,514 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-02-09 13:21:51,514 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-02-09 13:21:51,514 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-09 13:21:51,514 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-09 13:21:51,514 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 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) [2022-02-09 13:21:51,514 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-09 13:21:51,514 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-09 13:21:51,571 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-09 13:21:51,573 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-09 13:21:51,574 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-02-09 13:21:51,574 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting checkThreadErr0ASSERT_VIOLATIONERROR_FUNCTION === [checkThreadErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-09 13:21:51,574 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 13:21:51,574 INFO L85 PathProgramCache]: Analyzing trace with hash 269435223, now seen corresponding path program 1 times [2022-02-09 13:21:51,574 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 13:21:51,575 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1258034426] [2022-02-09 13:21:51,575 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 13:21:51,575 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 13:21:51,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 13:21:51,633 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 13:21:51,633 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 13:21:51,633 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1258034426] [2022-02-09 13:21:51,634 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1258034426] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-09 13:21:51,634 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [461146312] [2022-02-09 13:21:51,634 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 13:21:51,634 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-09 13:21:51,634 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-09 13:21:51,635 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-09 13:21:51,636 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-02-09 13:21:51,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 13:21:51,726 INFO L263 TraceCheckSpWp]: Trace formula consists of 132 conjuncts, 4 conjunts are in the unsatisfiable core [2022-02-09 13:21:51,730 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-09 13:21:51,862 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 13:21:51,862 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-09 13:21:51,947 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 13:21:51,947 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [461146312] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-09 13:21:51,948 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-09 13:21:51,948 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2022-02-09 13:21:51,948 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1703384024] [2022-02-09 13:21:51,948 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-09 13:21:51,948 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-02-09 13:21:51,948 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 13:21:51,949 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-02-09 13:21:51,949 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2022-02-09 13:21:51,949 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-09 13:21:51,949 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-09 13:21:51,949 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 6.9) internal successors, (69), 10 states have internal predecessors, (69), 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) [2022-02-09 13:21:51,949 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-09 13:21:51,950 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-02-09 13:21:51,950 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-09 13:21:52,008 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-09 13:21:52,008 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-09 13:21:52,008 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-02-09 13:21:52,010 INFO L764 garLoopResultBuilder]: Registering result SAFE for location checkThreadErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-02-09 13:21:52,033 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-02-09 13:21:52,219 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2022-02-09 13:21:52,225 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2022-02-09 13:21:52,226 INFO L309 ceAbstractionStarter]: Result for error location checkThreadThread1of1ForFork1 was SAFE (1/2) [2022-02-09 13:21:52,228 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-02-09 13:21:52,228 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-09 13:21:52,229 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2022-02-09 13:21:52,230 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (4)] Waiting until timeout for monitored process [2022-02-09 13:21:52,232 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2022-02-09 13:21:52,232 INFO L339 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, mLazyFiniteAutomaton=true, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2022-02-09 13:21:52,232 INFO L340 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-02-09 13:21:52,271 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATION === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-09 13:21:52,272 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 13:21:52,272 INFO L85 PathProgramCache]: Analyzing trace with hash -1507342292, now seen corresponding path program 1 times [2022-02-09 13:21:52,272 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 13:21:52,272 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1818398210] [2022-02-09 13:21:52,272 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 13:21:52,272 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 13:21:52,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 13:21:52,306 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-02-09 13:21:52,307 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 13:21:52,307 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1818398210] [2022-02-09 13:21:52,307 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1818398210] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 13:21:52,307 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 13:21:52,307 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-02-09 13:21:52,307 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1341913258] [2022-02-09 13:21:52,307 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 13:21:52,308 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-02-09 13:21:52,308 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 13:21:52,308 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-02-09 13:21:52,308 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-02-09 13:21:52,308 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-09 13:21:52,308 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-09 13:21:52,308 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 17.5) internal successors, (35), 2 states have internal predecessors, (35), 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) [2022-02-09 13:21:52,309 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-09 13:21:52,313 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-09 13:21:52,313 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-02-09 13:21:52,313 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0INUSE_VIOLATION === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-09 13:21:52,314 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 13:21:52,314 INFO L85 PathProgramCache]: Analyzing trace with hash -154032595, now seen corresponding path program 1 times [2022-02-09 13:21:52,314 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 13:21:52,314 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [414945629] [2022-02-09 13:21:52,314 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 13:21:52,314 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 13:21:52,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 13:21:52,347 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-02-09 13:21:52,347 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 13:21:52,347 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [414945629] [2022-02-09 13:21:52,347 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [414945629] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 13:21:52,347 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 13:21:52,347 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-02-09 13:21:52,348 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1009886843] [2022-02-09 13:21:52,348 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 13:21:52,348 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-02-09 13:21:52,348 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 13:21:52,348 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-02-09 13:21:52,349 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-02-09 13:21:52,349 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-09 13:21:52,349 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-09 13:21:52,349 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 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) [2022-02-09 13:21:52,349 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-09 13:21:52,349 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-09 13:21:52,387 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-09 13:21:52,387 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-09 13:21:52,387 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-02-09 13:21:52,387 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0INUSE_VIOLATION === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-09 13:21:52,388 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 13:21:52,388 INFO L85 PathProgramCache]: Analyzing trace with hash -1897890732, now seen corresponding path program 1 times [2022-02-09 13:21:52,388 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 13:21:52,388 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [272913765] [2022-02-09 13:21:52,388 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 13:21:52,388 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 13:21:52,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 13:21:52,463 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-02-09 13:21:52,463 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 13:21:52,464 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [272913765] [2022-02-09 13:21:52,464 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [272913765] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-09 13:21:52,464 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1260018107] [2022-02-09 13:21:52,464 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 13:21:52,464 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-09 13:21:52,464 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-09 13:21:52,496 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-09 13:21:52,498 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-02-09 13:21:52,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 13:21:52,565 INFO L263 TraceCheckSpWp]: Trace formula consists of 129 conjuncts, 4 conjunts are in the unsatisfiable core [2022-02-09 13:21:52,567 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-09 13:21:52,655 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-02-09 13:21:52,656 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-09 13:21:52,745 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-02-09 13:21:52,746 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1260018107] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-09 13:21:52,746 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-09 13:21:52,746 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2022-02-09 13:21:52,747 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [329228978] [2022-02-09 13:21:52,747 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-09 13:21:52,748 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-02-09 13:21:52,749 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 13:21:52,749 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-02-09 13:21:52,750 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2022-02-09 13:21:52,750 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-09 13:21:52,750 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-09 13:21:52,750 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 6.7) internal successors, (67), 10 states have internal predecessors, (67), 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) [2022-02-09 13:21:52,750 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-09 13:21:52,750 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-02-09 13:21:52,750 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-09 13:21:52,802 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-09 13:21:52,803 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-09 13:21:52,803 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-02-09 13:21:52,823 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-02-09 13:21:53,021 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-09 13:21:53,022 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1INUSE_VIOLATION === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-09 13:21:53,022 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 13:21:53,022 INFO L85 PathProgramCache]: Analyzing trace with hash -121871665, now seen corresponding path program 1 times [2022-02-09 13:21:53,022 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 13:21:53,022 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1254260384] [2022-02-09 13:21:53,022 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 13:21:53,023 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 13:21:53,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-09 13:21:53,042 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-09 13:21:53,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-09 13:21:53,063 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-09 13:21:53,063 INFO L628 BasicCegarLoop]: Counterexample is feasible [2022-02-09 13:21:53,063 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1INUSE_VIOLATION (1 of 2 remaining) [2022-02-09 13:21:53,063 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATION (0 of 2 remaining) [2022-02-09 13:21:53,064 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-02-09 13:21:53,065 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2022-02-09 13:21:53,065 INFO L309 ceAbstractionStarter]: Result for error location ULTIMATE.start was UNSAFE,UNKNOWN (2/2) [2022-02-09 13:21:53,065 WARN L235 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2022-02-09 13:21:53,065 INFO L534 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2022-02-09 13:21:53,086 WARN L322 ript$VariableManager]: TermVariabe |setThreadThread1of2ForFork0_#in~param.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 13:21:53,086 WARN L322 ript$VariableManager]: TermVariabe |setThreadThread1of2ForFork0_#in~param.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 13:21:53,086 WARN L322 ript$VariableManager]: TermVariabe setThreadThread1of2ForFork0_~param.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 13:21:53,086 WARN L322 ript$VariableManager]: TermVariabe setThreadThread1of2ForFork0_~param.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 13:21:53,087 WARN L322 ript$VariableManager]: TermVariabe |setThreadThread1of2ForFork0_#in~param.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 13:21:53,087 WARN L322 ript$VariableManager]: TermVariabe |setThreadThread1of2ForFork0_#in~param.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 13:21:53,087 WARN L322 ript$VariableManager]: TermVariabe setThreadThread1of2ForFork0_~param.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 13:21:53,087 WARN L322 ript$VariableManager]: TermVariabe setThreadThread1of2ForFork0_~param.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 13:21:53,087 WARN L322 ript$VariableManager]: TermVariabe |setThreadThread1of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 13:21:53,087 WARN L322 ript$VariableManager]: TermVariabe |setThreadThread1of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 13:21:53,087 WARN L322 ript$VariableManager]: TermVariabe |setThreadThread1of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 13:21:53,087 WARN L322 ript$VariableManager]: TermVariabe |setThreadThread1of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 13:21:53,087 WARN L322 ript$VariableManager]: TermVariabe |setThreadThread2of2ForFork0_#in~param.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 13:21:53,087 WARN L322 ript$VariableManager]: TermVariabe |setThreadThread2of2ForFork0_#in~param.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 13:21:53,087 WARN L322 ript$VariableManager]: TermVariabe setThreadThread2of2ForFork0_~param.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 13:21:53,088 WARN L322 ript$VariableManager]: TermVariabe setThreadThread2of2ForFork0_~param.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 13:21:53,088 WARN L322 ript$VariableManager]: TermVariabe |setThreadThread2of2ForFork0_#in~param.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 13:21:53,088 WARN L322 ript$VariableManager]: TermVariabe |setThreadThread2of2ForFork0_#in~param.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 13:21:53,088 WARN L322 ript$VariableManager]: TermVariabe setThreadThread2of2ForFork0_~param.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 13:21:53,088 WARN L322 ript$VariableManager]: TermVariabe setThreadThread2of2ForFork0_~param.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 13:21:53,088 WARN L322 ript$VariableManager]: TermVariabe |setThreadThread2of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 13:21:53,088 WARN L322 ript$VariableManager]: TermVariabe |setThreadThread2of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 13:21:53,088 WARN L322 ript$VariableManager]: TermVariabe |setThreadThread2of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 13:21:53,088 WARN L322 ript$VariableManager]: TermVariabe |setThreadThread2of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 13:21:53,088 WARN L322 ript$VariableManager]: TermVariabe |checkThreadThread1of2ForFork1_#in~param.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 13:21:53,088 WARN L322 ript$VariableManager]: TermVariabe |checkThreadThread1of2ForFork1_#in~param.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 13:21:53,089 WARN L322 ript$VariableManager]: TermVariabe checkThreadThread1of2ForFork1_~param.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 13:21:53,089 WARN L322 ript$VariableManager]: TermVariabe checkThreadThread1of2ForFork1_~param.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 13:21:53,089 WARN L322 ript$VariableManager]: TermVariabe |checkThreadThread1of2ForFork1_#in~param.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 13:21:53,089 WARN L322 ript$VariableManager]: TermVariabe |checkThreadThread1of2ForFork1_#in~param.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 13:21:53,089 WARN L322 ript$VariableManager]: TermVariabe checkThreadThread1of2ForFork1_~param.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 13:21:53,089 WARN L322 ript$VariableManager]: TermVariabe checkThreadThread1of2ForFork1_~param.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 13:21:53,089 WARN L322 ript$VariableManager]: TermVariabe |checkThreadThread1of2ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 13:21:53,089 WARN L322 ript$VariableManager]: TermVariabe |checkThreadThread1of2ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 13:21:53,089 WARN L322 ript$VariableManager]: TermVariabe |checkThreadThread1of2ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 13:21:53,089 WARN L322 ript$VariableManager]: TermVariabe |checkThreadThread1of2ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 13:21:53,090 WARN L322 ript$VariableManager]: TermVariabe |checkThreadThread2of2ForFork1_#in~param.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 13:21:53,090 WARN L322 ript$VariableManager]: TermVariabe |checkThreadThread2of2ForFork1_#in~param.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 13:21:53,090 WARN L322 ript$VariableManager]: TermVariabe checkThreadThread2of2ForFork1_~param.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 13:21:53,090 WARN L322 ript$VariableManager]: TermVariabe checkThreadThread2of2ForFork1_~param.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 13:21:53,090 WARN L322 ript$VariableManager]: TermVariabe |checkThreadThread2of2ForFork1_#in~param.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 13:21:53,090 WARN L322 ript$VariableManager]: TermVariabe |checkThreadThread2of2ForFork1_#in~param.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 13:21:53,090 WARN L322 ript$VariableManager]: TermVariabe checkThreadThread2of2ForFork1_~param.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 13:21:53,090 WARN L322 ript$VariableManager]: TermVariabe checkThreadThread2of2ForFork1_~param.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 13:21:53,090 WARN L322 ript$VariableManager]: TermVariabe |checkThreadThread2of2ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 13:21:53,090 WARN L322 ript$VariableManager]: TermVariabe |checkThreadThread2of2ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 13:21:53,090 WARN L322 ript$VariableManager]: TermVariabe |checkThreadThread2of2ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 13:21:53,091 WARN L322 ript$VariableManager]: TermVariabe |checkThreadThread2of2ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 13:21:53,091 WARN L322 ript$VariableManager]: TermVariabe setThreadThread1of2ForFork0_~param.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 13:21:53,091 WARN L322 ript$VariableManager]: TermVariabe |setThreadThread1of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 13:21:53,091 WARN L322 ript$VariableManager]: TermVariabe setThreadThread1of2ForFork0_~param.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 13:21:53,091 WARN L322 ript$VariableManager]: TermVariabe |setThreadThread1of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 13:21:53,091 WARN L322 ript$VariableManager]: TermVariabe setThreadThread2of2ForFork0_~param.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 13:21:53,092 WARN L322 ript$VariableManager]: TermVariabe setThreadThread2of2ForFork0_~param.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 13:21:53,092 WARN L322 ript$VariableManager]: TermVariabe |setThreadThread2of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 13:21:53,092 WARN L322 ript$VariableManager]: TermVariabe |setThreadThread2of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 13:21:53,092 WARN L322 ript$VariableManager]: TermVariabe |checkThreadThread1of2ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 13:21:53,092 WARN L322 ript$VariableManager]: TermVariabe checkThreadThread1of2ForFork1_~param.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 13:21:53,092 WARN L322 ript$VariableManager]: TermVariabe checkThreadThread1of2ForFork1_~param.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 13:21:53,092 WARN L322 ript$VariableManager]: TermVariabe |checkThreadThread1of2ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 13:21:53,093 WARN L322 ript$VariableManager]: TermVariabe |checkThreadThread2of2ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 13:21:53,093 WARN L322 ript$VariableManager]: TermVariabe checkThreadThread2of2ForFork1_~param.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 13:21:53,093 WARN L322 ript$VariableManager]: TermVariabe |checkThreadThread2of2ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 13:21:53,093 WARN L322 ript$VariableManager]: TermVariabe checkThreadThread2of2ForFork1_~param.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 13:21:53,104 INFO L148 ThreadInstanceAdder]: Constructed 8 joinOtherThreadTransitions. [2022-02-09 13:21:53,105 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-02-09 13:21:53,105 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-09 13:21:53,107 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2022-02-09 13:21:53,110 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (6)] Waiting until timeout for monitored process [2022-02-09 13:21:53,112 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == checkThreadThread1of2ForFork1 ======== [2022-02-09 13:21:53,113 INFO L339 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, mLazyFiniteAutomaton=true, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2022-02-09 13:21:53,113 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-02-09 13:21:53,226 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting checkThreadErr0ASSERT_VIOLATIONERROR_FUNCTION === [checkThreadErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-09 13:21:53,226 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 13:21:53,227 INFO L85 PathProgramCache]: Analyzing trace with hash -341074863, now seen corresponding path program 1 times [2022-02-09 13:21:53,227 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 13:21:53,227 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1350594638] [2022-02-09 13:21:53,228 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 13:21:53,232 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 13:21:53,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 13:21:53,253 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 13:21:53,253 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 13:21:53,253 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1350594638] [2022-02-09 13:21:53,253 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1350594638] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 13:21:53,253 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 13:21:53,253 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-02-09 13:21:53,253 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [26430100] [2022-02-09 13:21:53,254 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 13:21:53,254 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-02-09 13:21:53,254 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 13:21:53,254 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-02-09 13:21:53,254 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-02-09 13:21:53,254 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-09 13:21:53,254 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-09 13:21:53,254 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 16.0) internal successors, (32), 2 states have internal predecessors, (32), 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) [2022-02-09 13:21:53,254 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-09 13:21:53,257 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-09 13:21:53,257 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-02-09 13:21:53,257 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting checkThreadErr0ASSERT_VIOLATIONERROR_FUNCTION === [checkThreadErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-09 13:21:53,257 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 13:21:53,257 INFO L85 PathProgramCache]: Analyzing trace with hash -537588368, now seen corresponding path program 1 times [2022-02-09 13:21:53,257 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 13:21:53,257 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [875883398] [2022-02-09 13:21:53,257 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 13:21:53,257 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 13:21:53,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 13:21:53,277 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 13:21:53,278 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 13:21:53,278 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [875883398] [2022-02-09 13:21:53,278 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [875883398] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 13:21:53,278 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 13:21:53,278 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-02-09 13:21:53,278 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [193251598] [2022-02-09 13:21:53,278 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 13:21:53,278 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-02-09 13:21:53,278 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 13:21:53,279 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-02-09 13:21:53,279 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-02-09 13:21:53,279 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-09 13:21:53,279 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-09 13:21:53,279 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 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) [2022-02-09 13:21:53,279 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-09 13:21:53,279 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-09 13:21:53,341 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-09 13:21:53,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-09 13:21:53,342 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-02-09 13:21:53,342 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting checkThreadErr0ASSERT_VIOLATIONERROR_FUNCTION === [checkThreadErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-09 13:21:53,342 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 13:21:53,342 INFO L85 PathProgramCache]: Analyzing trace with hash 1353950055, now seen corresponding path program 1 times [2022-02-09 13:21:53,342 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 13:21:53,342 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1533173419] [2022-02-09 13:21:53,342 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 13:21:53,342 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 13:21:53,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 13:21:53,400 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 13:21:53,400 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 13:21:53,400 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1533173419] [2022-02-09 13:21:53,400 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1533173419] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-09 13:21:53,400 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1757040531] [2022-02-09 13:21:53,400 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 13:21:53,400 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-09 13:21:53,401 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-09 13:21:53,402 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-09 13:21:53,415 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-02-09 13:21:53,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 13:21:53,462 INFO L263 TraceCheckSpWp]: Trace formula consists of 132 conjuncts, 4 conjunts are in the unsatisfiable core [2022-02-09 13:21:53,464 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-09 13:21:53,532 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 13:21:53,533 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-09 13:21:53,597 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 13:21:53,597 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1757040531] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-09 13:21:53,597 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-09 13:21:53,597 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2022-02-09 13:21:53,598 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [191701] [2022-02-09 13:21:53,598 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-09 13:21:53,599 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-02-09 13:21:53,599 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 13:21:53,600 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-02-09 13:21:53,600 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2022-02-09 13:21:53,601 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-09 13:21:53,601 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-09 13:21:53,601 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 6.9) internal successors, (69), 10 states have internal predecessors, (69), 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) [2022-02-09 13:21:53,601 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-09 13:21:53,601 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-02-09 13:21:53,601 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-09 13:21:53,723 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-09 13:21:53,723 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-09 13:21:53,724 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-02-09 13:21:53,724 INFO L764 garLoopResultBuilder]: Registering result SAFE for location checkThreadErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-02-09 13:21:53,749 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-02-09 13:21:53,941 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-09 13:21:53,943 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2022-02-09 13:21:53,943 INFO L309 ceAbstractionStarter]: Result for error location checkThreadThread1of2ForFork1 was SAFE (1/3) [2022-02-09 13:21:53,944 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-02-09 13:21:53,944 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-09 13:21:53,946 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2022-02-09 13:21:53,946 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (8)] Waiting until timeout for monitored process [2022-02-09 13:21:53,949 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == checkThreadThread2of2ForFork1 ======== [2022-02-09 13:21:53,950 INFO L339 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, mLazyFiniteAutomaton=true, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2022-02-09 13:21:53,950 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-02-09 13:21:54,003 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting checkThreadErr0ASSERT_VIOLATIONERROR_FUNCTION === [checkThreadErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-09 13:21:54,003 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 13:21:54,003 INFO L85 PathProgramCache]: Analyzing trace with hash -1368402137, now seen corresponding path program 1 times [2022-02-09 13:21:54,004 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 13:21:54,004 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [183231774] [2022-02-09 13:21:54,004 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 13:21:54,004 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 13:21:54,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 13:21:54,027 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-02-09 13:21:54,027 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 13:21:54,027 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [183231774] [2022-02-09 13:21:54,027 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [183231774] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 13:21:54,027 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 13:21:54,027 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-02-09 13:21:54,027 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [278075626] [2022-02-09 13:21:54,028 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 13:21:54,028 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-02-09 13:21:54,028 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 13:21:54,028 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-02-09 13:21:54,028 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-02-09 13:21:54,028 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-09 13:21:54,028 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-09 13:21:54,028 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 21.0) internal successors, (42), 2 states have internal predecessors, (42), 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) [2022-02-09 13:21:54,028 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-09 13:21:54,033 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-09 13:21:54,034 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-02-09 13:21:54,034 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting checkThreadErr0ASSERT_VIOLATIONERROR_FUNCTION === [checkThreadErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-09 13:21:54,034 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 13:21:54,034 INFO L85 PathProgramCache]: Analyzing trace with hash -1435408890, now seen corresponding path program 1 times [2022-02-09 13:21:54,034 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 13:21:54,034 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1276217512] [2022-02-09 13:21:54,034 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 13:21:54,035 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 13:21:54,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 13:21:54,074 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-02-09 13:21:54,074 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 13:21:54,074 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1276217512] [2022-02-09 13:21:54,074 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1276217512] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 13:21:54,074 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 13:21:54,074 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-02-09 13:21:54,074 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [884237161] [2022-02-09 13:21:54,074 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 13:21:54,074 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-02-09 13:21:54,075 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 13:21:54,075 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-02-09 13:21:54,075 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-02-09 13:21:54,075 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-09 13:21:54,075 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-09 13:21:54,075 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 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) [2022-02-09 13:21:54,075 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-09 13:21:54,075 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-09 13:21:54,121 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-09 13:21:54,121 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-09 13:21:54,122 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-02-09 13:21:54,122 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting checkThreadErr0ASSERT_VIOLATIONERROR_FUNCTION === [checkThreadErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-09 13:21:54,122 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 13:21:54,122 INFO L85 PathProgramCache]: Analyzing trace with hash 1580908477, now seen corresponding path program 1 times [2022-02-09 13:21:54,122 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 13:21:54,122 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1828301864] [2022-02-09 13:21:54,122 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 13:21:54,122 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 13:21:54,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 13:21:54,151 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-02-09 13:21:54,151 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 13:21:54,151 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1828301864] [2022-02-09 13:21:54,151 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1828301864] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-09 13:21:54,151 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1475833232] [2022-02-09 13:21:54,151 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 13:21:54,151 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-09 13:21:54,151 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-09 13:21:54,153 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-09 13:21:54,153 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-02-09 13:21:54,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 13:21:54,209 INFO L263 TraceCheckSpWp]: Trace formula consists of 164 conjuncts, 4 conjunts are in the unsatisfiable core [2022-02-09 13:21:54,210 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-09 13:21:54,279 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-02-09 13:21:54,279 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-09 13:21:54,351 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-02-09 13:21:54,352 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1475833232] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-09 13:21:54,352 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-09 13:21:54,352 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2022-02-09 13:21:54,354 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1540974012] [2022-02-09 13:21:54,354 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-09 13:21:54,354 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-02-09 13:21:54,354 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 13:21:54,355 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-02-09 13:21:54,355 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2022-02-09 13:21:54,355 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-09 13:21:54,355 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-09 13:21:54,355 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 7.9) internal successors, (79), 10 states have internal predecessors, (79), 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) [2022-02-09 13:21:54,355 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-09 13:21:54,355 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-02-09 13:21:54,355 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-09 13:21:54,453 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-09 13:21:54,453 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-09 13:21:54,453 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-02-09 13:21:54,453 INFO L764 garLoopResultBuilder]: Registering result SAFE for location checkThreadErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-02-09 13:21:54,474 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2022-02-09 13:21:54,667 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2022-02-09 13:21:54,668 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2022-02-09 13:21:54,668 INFO L309 ceAbstractionStarter]: Result for error location checkThreadThread2of2ForFork1 was SAFE (2/3) [2022-02-09 13:21:54,671 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-02-09 13:21:54,671 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-09 13:21:54,673 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2022-02-09 13:21:54,675 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (10)] Waiting until timeout for monitored process [2022-02-09 13:21:54,677 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2022-02-09 13:21:54,677 INFO L339 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, mLazyFiniteAutomaton=true, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2022-02-09 13:21:54,677 INFO L340 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-02-09 13:21:54,706 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATION === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-09 13:21:54,706 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 13:21:54,706 INFO L85 PathProgramCache]: Analyzing trace with hash -833843574, now seen corresponding path program 1 times [2022-02-09 13:21:54,706 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 13:21:54,706 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1805260706] [2022-02-09 13:21:54,706 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 13:21:54,706 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 13:21:54,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 13:21:54,717 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-02-09 13:21:54,717 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 13:21:54,717 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1805260706] [2022-02-09 13:21:54,718 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1805260706] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 13:21:54,718 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 13:21:54,718 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-02-09 13:21:54,718 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1473355911] [2022-02-09 13:21:54,718 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 13:21:54,718 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-02-09 13:21:54,718 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 13:21:54,718 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-02-09 13:21:54,718 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-02-09 13:21:54,718 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-09 13:21:54,718 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-09 13:21:54,719 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 18.0) internal successors, (36), 2 states have internal predecessors, (36), 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) [2022-02-09 13:21:54,719 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-09 13:21:54,721 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-09 13:21:54,721 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-02-09 13:21:54,721 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0INUSE_VIOLATION === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-09 13:21:54,721 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 13:21:54,721 INFO L85 PathProgramCache]: Analyzing trace with hash 127770443, now seen corresponding path program 1 times [2022-02-09 13:21:54,721 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 13:21:54,722 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [11184121] [2022-02-09 13:21:54,722 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 13:21:54,722 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 13:21:54,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 13:21:54,735 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-02-09 13:21:54,735 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 13:21:54,735 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [11184121] [2022-02-09 13:21:54,735 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [11184121] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 13:21:54,735 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 13:21:54,735 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-02-09 13:21:54,735 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1990163176] [2022-02-09 13:21:54,735 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 13:21:54,736 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-02-09 13:21:54,736 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 13:21:54,736 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-02-09 13:21:54,736 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-02-09 13:21:54,736 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-09 13:21:54,736 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-09 13:21:54,736 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 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) [2022-02-09 13:21:54,736 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-09 13:21:54,736 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-09 13:21:54,758 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-09 13:21:54,758 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-09 13:21:54,758 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-02-09 13:21:54,758 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0INUSE_VIOLATION === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-09 13:21:54,758 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 13:21:54,758 INFO L85 PathProgramCache]: Analyzing trace with hash 1443866943, now seen corresponding path program 1 times [2022-02-09 13:21:54,759 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 13:21:54,759 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2022024421] [2022-02-09 13:21:54,759 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 13:21:54,759 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 13:21:54,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 13:21:54,782 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-02-09 13:21:54,782 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 13:21:54,782 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2022024421] [2022-02-09 13:21:54,782 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2022024421] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-09 13:21:54,783 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [491125756] [2022-02-09 13:21:54,783 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 13:21:54,783 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-09 13:21:54,783 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-09 13:21:54,792 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-09 13:21:54,792 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2022-02-09 13:21:54,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 13:21:54,852 INFO L263 TraceCheckSpWp]: Trace formula consists of 151 conjuncts, 4 conjunts are in the unsatisfiable core [2022-02-09 13:21:54,853 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-09 13:21:54,926 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-02-09 13:21:54,927 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-09 13:21:54,997 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-02-09 13:21:54,998 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [491125756] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-09 13:21:54,998 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-09 13:21:54,998 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2022-02-09 13:21:54,998 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [355953579] [2022-02-09 13:21:54,998 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-09 13:21:54,998 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-02-09 13:21:54,998 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 13:21:54,999 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-02-09 13:21:54,999 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2022-02-09 13:21:54,999 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-09 13:21:54,999 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-09 13:21:54,999 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 6.8) internal successors, (68), 10 states have internal predecessors, (68), 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) [2022-02-09 13:21:54,999 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-09 13:21:54,999 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-02-09 13:21:54,999 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-09 13:21:55,066 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-09 13:21:55,067 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-09 13:21:55,067 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-02-09 13:21:55,084 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2022-02-09 13:21:55,284 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2022-02-09 13:21:55,284 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1INUSE_VIOLATION === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-09 13:21:55,284 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 13:21:55,285 INFO L85 PathProgramCache]: Analyzing trace with hash 1479036618, now seen corresponding path program 1 times [2022-02-09 13:21:55,285 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 13:21:55,285 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [735281] [2022-02-09 13:21:55,285 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 13:21:55,285 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 13:21:55,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-09 13:21:55,294 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-09 13:21:55,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-09 13:21:55,314 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-09 13:21:55,314 INFO L628 BasicCegarLoop]: Counterexample is feasible [2022-02-09 13:21:55,315 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1INUSE_VIOLATION (1 of 2 remaining) [2022-02-09 13:21:55,315 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATION (0 of 2 remaining) [2022-02-09 13:21:55,315 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-02-09 13:21:55,316 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2022-02-09 13:21:55,316 INFO L309 ceAbstractionStarter]: Result for error location ULTIMATE.start was UNSAFE,UNKNOWN (3/3) [2022-02-09 13:21:55,316 WARN L235 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2022-02-09 13:21:55,316 INFO L534 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2022-02-09 13:21:55,324 WARN L322 ript$VariableManager]: TermVariabe |setThreadThread1of3ForFork0_#in~param.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 13:21:55,324 WARN L322 ript$VariableManager]: TermVariabe |setThreadThread1of3ForFork0_#in~param.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 13:21:55,324 WARN L322 ript$VariableManager]: TermVariabe setThreadThread1of3ForFork0_~param.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 13:21:55,324 WARN L322 ript$VariableManager]: TermVariabe setThreadThread1of3ForFork0_~param.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 13:21:55,325 WARN L322 ript$VariableManager]: TermVariabe |setThreadThread1of3ForFork0_#in~param.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 13:21:55,325 WARN L322 ript$VariableManager]: TermVariabe |setThreadThread1of3ForFork0_#in~param.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 13:21:55,325 WARN L322 ript$VariableManager]: TermVariabe setThreadThread1of3ForFork0_~param.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 13:21:55,325 WARN L322 ript$VariableManager]: TermVariabe setThreadThread1of3ForFork0_~param.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 13:21:55,325 WARN L322 ript$VariableManager]: TermVariabe |setThreadThread1of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 13:21:55,325 WARN L322 ript$VariableManager]: TermVariabe |setThreadThread1of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 13:21:55,325 WARN L322 ript$VariableManager]: TermVariabe |setThreadThread1of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 13:21:55,325 WARN L322 ript$VariableManager]: TermVariabe |setThreadThread1of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 13:21:55,325 WARN L322 ript$VariableManager]: TermVariabe |setThreadThread2of3ForFork0_#in~param.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 13:21:55,326 WARN L322 ript$VariableManager]: TermVariabe |setThreadThread2of3ForFork0_#in~param.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 13:21:55,326 WARN L322 ript$VariableManager]: TermVariabe setThreadThread2of3ForFork0_~param.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 13:21:55,326 WARN L322 ript$VariableManager]: TermVariabe setThreadThread2of3ForFork0_~param.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 13:21:55,326 WARN L322 ript$VariableManager]: TermVariabe |setThreadThread2of3ForFork0_#in~param.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 13:21:55,326 WARN L322 ript$VariableManager]: TermVariabe |setThreadThread2of3ForFork0_#in~param.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 13:21:55,326 WARN L322 ript$VariableManager]: TermVariabe setThreadThread2of3ForFork0_~param.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 13:21:55,326 WARN L322 ript$VariableManager]: TermVariabe setThreadThread2of3ForFork0_~param.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 13:21:55,326 WARN L322 ript$VariableManager]: TermVariabe |setThreadThread2of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 13:21:55,326 WARN L322 ript$VariableManager]: TermVariabe |setThreadThread2of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 13:21:55,326 WARN L322 ript$VariableManager]: TermVariabe |setThreadThread2of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 13:21:55,326 WARN L322 ript$VariableManager]: TermVariabe |setThreadThread2of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 13:21:55,326 WARN L322 ript$VariableManager]: TermVariabe |setThreadThread3of3ForFork0_#in~param.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 13:21:55,326 WARN L322 ript$VariableManager]: TermVariabe |setThreadThread3of3ForFork0_#in~param.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 13:21:55,326 WARN L322 ript$VariableManager]: TermVariabe setThreadThread3of3ForFork0_~param.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 13:21:55,326 WARN L322 ript$VariableManager]: TermVariabe setThreadThread3of3ForFork0_~param.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 13:21:55,326 WARN L322 ript$VariableManager]: TermVariabe |setThreadThread3of3ForFork0_#in~param.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 13:21:55,326 WARN L322 ript$VariableManager]: TermVariabe |setThreadThread3of3ForFork0_#in~param.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 13:21:55,326 WARN L322 ript$VariableManager]: TermVariabe setThreadThread3of3ForFork0_~param.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 13:21:55,326 WARN L322 ript$VariableManager]: TermVariabe setThreadThread3of3ForFork0_~param.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 13:21:55,327 WARN L322 ript$VariableManager]: TermVariabe |setThreadThread3of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 13:21:55,327 WARN L322 ript$VariableManager]: TermVariabe |setThreadThread3of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 13:21:55,327 WARN L322 ript$VariableManager]: TermVariabe |setThreadThread3of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 13:21:55,327 WARN L322 ript$VariableManager]: TermVariabe |setThreadThread3of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 13:21:55,327 WARN L322 ript$VariableManager]: TermVariabe |checkThreadThread1of3ForFork1_#in~param.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 13:21:55,327 WARN L322 ript$VariableManager]: TermVariabe |checkThreadThread1of3ForFork1_#in~param.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 13:21:55,327 WARN L322 ript$VariableManager]: TermVariabe checkThreadThread1of3ForFork1_~param.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 13:21:55,327 WARN L322 ript$VariableManager]: TermVariabe checkThreadThread1of3ForFork1_~param.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 13:21:55,327 WARN L322 ript$VariableManager]: TermVariabe |checkThreadThread1of3ForFork1_#in~param.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 13:21:55,327 WARN L322 ript$VariableManager]: TermVariabe |checkThreadThread1of3ForFork1_#in~param.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 13:21:55,327 WARN L322 ript$VariableManager]: TermVariabe checkThreadThread1of3ForFork1_~param.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 13:21:55,327 WARN L322 ript$VariableManager]: TermVariabe checkThreadThread1of3ForFork1_~param.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 13:21:55,327 WARN L322 ript$VariableManager]: TermVariabe |checkThreadThread1of3ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 13:21:55,327 WARN L322 ript$VariableManager]: TermVariabe |checkThreadThread1of3ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 13:21:55,327 WARN L322 ript$VariableManager]: TermVariabe |checkThreadThread1of3ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 13:21:55,328 WARN L322 ript$VariableManager]: TermVariabe |checkThreadThread1of3ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 13:21:55,328 WARN L322 ript$VariableManager]: TermVariabe |checkThreadThread2of3ForFork1_#in~param.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 13:21:55,328 WARN L322 ript$VariableManager]: TermVariabe |checkThreadThread2of3ForFork1_#in~param.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 13:21:55,328 WARN L322 ript$VariableManager]: TermVariabe checkThreadThread2of3ForFork1_~param.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 13:21:55,328 WARN L322 ript$VariableManager]: TermVariabe checkThreadThread2of3ForFork1_~param.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 13:21:55,328 WARN L322 ript$VariableManager]: TermVariabe |checkThreadThread2of3ForFork1_#in~param.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 13:21:55,328 WARN L322 ript$VariableManager]: TermVariabe |checkThreadThread2of3ForFork1_#in~param.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 13:21:55,328 WARN L322 ript$VariableManager]: TermVariabe checkThreadThread2of3ForFork1_~param.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 13:21:55,328 WARN L322 ript$VariableManager]: TermVariabe checkThreadThread2of3ForFork1_~param.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 13:21:55,328 WARN L322 ript$VariableManager]: TermVariabe |checkThreadThread2of3ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 13:21:55,328 WARN L322 ript$VariableManager]: TermVariabe |checkThreadThread2of3ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 13:21:55,328 WARN L322 ript$VariableManager]: TermVariabe |checkThreadThread2of3ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 13:21:55,328 WARN L322 ript$VariableManager]: TermVariabe |checkThreadThread2of3ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 13:21:55,329 WARN L322 ript$VariableManager]: TermVariabe |checkThreadThread3of3ForFork1_#in~param.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 13:21:55,329 WARN L322 ript$VariableManager]: TermVariabe |checkThreadThread3of3ForFork1_#in~param.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 13:21:55,329 WARN L322 ript$VariableManager]: TermVariabe checkThreadThread3of3ForFork1_~param.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 13:21:55,329 WARN L322 ript$VariableManager]: TermVariabe checkThreadThread3of3ForFork1_~param.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 13:21:55,329 WARN L322 ript$VariableManager]: TermVariabe |checkThreadThread3of3ForFork1_#in~param.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 13:21:55,329 WARN L322 ript$VariableManager]: TermVariabe |checkThreadThread3of3ForFork1_#in~param.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 13:21:55,329 WARN L322 ript$VariableManager]: TermVariabe checkThreadThread3of3ForFork1_~param.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 13:21:55,329 WARN L322 ript$VariableManager]: TermVariabe checkThreadThread3of3ForFork1_~param.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 13:21:55,329 WARN L322 ript$VariableManager]: TermVariabe |checkThreadThread3of3ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 13:21:55,329 WARN L322 ript$VariableManager]: TermVariabe |checkThreadThread3of3ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 13:21:55,329 WARN L322 ript$VariableManager]: TermVariabe |checkThreadThread3of3ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 13:21:55,329 WARN L322 ript$VariableManager]: TermVariabe |checkThreadThread3of3ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 13:21:55,330 WARN L322 ript$VariableManager]: TermVariabe |setThreadThread1of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 13:21:55,330 WARN L322 ript$VariableManager]: TermVariabe setThreadThread1of3ForFork0_~param.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 13:21:55,330 WARN L322 ript$VariableManager]: TermVariabe setThreadThread1of3ForFork0_~param.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 13:21:55,330 WARN L322 ript$VariableManager]: TermVariabe |setThreadThread1of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 13:21:55,330 WARN L322 ript$VariableManager]: TermVariabe |setThreadThread2of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 13:21:55,330 WARN L322 ript$VariableManager]: TermVariabe setThreadThread2of3ForFork0_~param.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 13:21:55,330 WARN L322 ript$VariableManager]: TermVariabe setThreadThread2of3ForFork0_~param.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 13:21:55,330 WARN L322 ript$VariableManager]: TermVariabe |setThreadThread2of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 13:21:55,331 WARN L322 ript$VariableManager]: TermVariabe |setThreadThread3of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 13:21:55,331 WARN L322 ript$VariableManager]: TermVariabe setThreadThread3of3ForFork0_~param.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 13:21:55,331 WARN L322 ript$VariableManager]: TermVariabe setThreadThread3of3ForFork0_~param.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 13:21:55,331 WARN L322 ript$VariableManager]: TermVariabe |setThreadThread3of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 13:21:55,331 WARN L322 ript$VariableManager]: TermVariabe |checkThreadThread1of3ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 13:21:55,331 WARN L322 ript$VariableManager]: TermVariabe |checkThreadThread1of3ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 13:21:55,331 WARN L322 ript$VariableManager]: TermVariabe checkThreadThread1of3ForFork1_~param.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 13:21:55,331 WARN L322 ript$VariableManager]: TermVariabe checkThreadThread1of3ForFork1_~param.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 13:21:55,331 WARN L322 ript$VariableManager]: TermVariabe |checkThreadThread2of3ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 13:21:55,331 WARN L322 ript$VariableManager]: TermVariabe |checkThreadThread2of3ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 13:21:55,331 WARN L322 ript$VariableManager]: TermVariabe checkThreadThread2of3ForFork1_~param.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 13:21:55,331 WARN L322 ript$VariableManager]: TermVariabe checkThreadThread2of3ForFork1_~param.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 13:21:55,332 WARN L322 ript$VariableManager]: TermVariabe checkThreadThread3of3ForFork1_~param.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 13:21:55,332 WARN L322 ript$VariableManager]: TermVariabe |checkThreadThread3of3ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 13:21:55,332 WARN L322 ript$VariableManager]: TermVariabe |checkThreadThread3of3ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 13:21:55,332 WARN L322 ript$VariableManager]: TermVariabe checkThreadThread3of3ForFork1_~param.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 13:21:55,336 INFO L148 ThreadInstanceAdder]: Constructed 12 joinOtherThreadTransitions. [2022-02-09 13:21:55,337 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-02-09 13:21:55,337 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-09 13:21:55,338 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2022-02-09 13:21:55,339 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (12)] Waiting until timeout for monitored process [2022-02-09 13:21:55,342 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2022-02-09 13:21:55,342 INFO L339 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, mLazyFiniteAutomaton=true, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2022-02-09 13:21:55,342 INFO L340 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-02-09 13:21:55,395 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1INUSE_VIOLATION === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-09 13:21:55,395 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 13:21:55,395 INFO L85 PathProgramCache]: Analyzing trace with hash 1180890360, now seen corresponding path program 1 times [2022-02-09 13:21:55,395 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 13:21:55,395 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [865172880] [2022-02-09 13:21:55,396 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 13:21:55,396 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 13:21:55,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 13:21:55,408 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2022-02-09 13:21:55,408 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 13:21:55,408 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [865172880] [2022-02-09 13:21:55,408 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [865172880] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 13:21:55,408 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 13:21:55,408 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-02-09 13:21:55,408 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [157036309] [2022-02-09 13:21:55,408 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 13:21:55,408 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-02-09 13:21:55,409 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 13:21:55,409 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-02-09 13:21:55,409 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-02-09 13:21:55,409 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-09 13:21:55,409 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-09 13:21:55,409 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 18.5) internal successors, (37), 2 states have internal predecessors, (37), 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) [2022-02-09 13:21:55,409 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-09 13:21:55,413 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-09 13:21:55,413 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-02-09 13:21:55,413 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1INUSE_VIOLATION === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-09 13:21:55,413 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 13:21:55,413 INFO L85 PathProgramCache]: Analyzing trace with hash 1510656121, now seen corresponding path program 1 times [2022-02-09 13:21:55,413 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 13:21:55,413 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [546940467] [2022-02-09 13:21:55,413 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 13:21:55,413 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 13:21:55,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 13:21:55,428 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2022-02-09 13:21:55,428 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 13:21:55,428 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [546940467] [2022-02-09 13:21:55,428 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [546940467] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 13:21:55,428 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 13:21:55,428 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-02-09 13:21:55,429 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [305512899] [2022-02-09 13:21:55,429 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 13:21:55,429 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-02-09 13:21:55,430 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 13:21:55,430 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-02-09 13:21:55,430 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-02-09 13:21:55,430 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-09 13:21:55,430 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-09 13:21:55,430 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 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) [2022-02-09 13:21:55,430 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-09 13:21:55,430 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-09 13:21:55,457 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-09 13:21:55,457 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-09 13:21:55,457 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-02-09 13:21:55,458 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1INUSE_VIOLATION === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-09 13:21:55,458 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 13:21:55,458 INFO L85 PathProgramCache]: Analyzing trace with hash 2125452762, now seen corresponding path program 1 times [2022-02-09 13:21:55,458 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 13:21:55,458 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1020932313] [2022-02-09 13:21:55,458 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 13:21:55,458 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 13:21:55,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 13:21:55,490 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2022-02-09 13:21:55,490 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 13:21:55,490 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1020932313] [2022-02-09 13:21:55,490 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1020932313] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-09 13:21:55,490 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [541534408] [2022-02-09 13:21:55,491 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 13:21:55,491 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-09 13:21:55,491 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-09 13:21:55,496 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-09 13:21:55,497 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2022-02-09 13:21:55,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 13:21:55,562 INFO L263 TraceCheckSpWp]: Trace formula consists of 173 conjuncts, 4 conjunts are in the unsatisfiable core [2022-02-09 13:21:55,565 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-09 13:21:55,631 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2022-02-09 13:21:55,631 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-09 13:21:55,703 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2022-02-09 13:21:55,704 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [541534408] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-09 13:21:55,704 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-09 13:21:55,704 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2022-02-09 13:21:55,704 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [687619057] [2022-02-09 13:21:55,704 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-09 13:21:55,704 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-02-09 13:21:55,704 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 13:21:55,705 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-02-09 13:21:55,705 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2022-02-09 13:21:55,705 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-09 13:21:55,705 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-09 13:21:55,705 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 6.9) internal successors, (69), 10 states have internal predecessors, (69), 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) [2022-02-09 13:21:55,705 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-09 13:21:55,705 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-02-09 13:21:55,705 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-09 13:21:55,783 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-09 13:21:55,783 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-09 13:21:55,784 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-02-09 13:21:55,803 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2022-02-09 13:21:55,999 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-09 13:21:55,999 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1INUSE_VIOLATION === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-09 13:21:55,999 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 13:21:55,999 INFO L85 PathProgramCache]: Analyzing trace with hash 589266911, now seen corresponding path program 1 times [2022-02-09 13:21:55,999 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 13:21:55,999 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [436741327] [2022-02-09 13:21:56,000 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 13:21:56,000 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 13:21:56,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 13:21:56,028 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 26 proven. 1 refuted. 0 times theorem prover too weak. 51 trivial. 0 not checked. [2022-02-09 13:21:56,029 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 13:21:56,029 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [436741327] [2022-02-09 13:21:56,029 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [436741327] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-09 13:21:56,029 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [374981896] [2022-02-09 13:21:56,029 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 13:21:56,029 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-09 13:21:56,029 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-09 13:21:56,030 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-09 13:21:56,032 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2022-02-09 13:21:56,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 13:21:56,106 INFO L263 TraceCheckSpWp]: Trace formula consists of 217 conjuncts, 8 conjunts are in the unsatisfiable core [2022-02-09 13:21:56,107 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-09 13:21:56,238 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 0 proven. 33 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2022-02-09 13:21:56,238 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-09 13:21:56,416 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 0 proven. 33 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2022-02-09 13:21:56,416 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [374981896] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-09 13:21:56,416 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-09 13:21:56,416 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 9, 9] total 19 [2022-02-09 13:21:56,416 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [906733573] [2022-02-09 13:21:56,416 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-09 13:21:56,417 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-02-09 13:21:56,417 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 13:21:56,417 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-02-09 13:21:56,417 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=86, Invalid=256, Unknown=0, NotChecked=0, Total=342 [2022-02-09 13:21:56,417 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-09 13:21:56,417 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-09 13:21:56,417 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 6.578947368421052) internal successors, (125), 19 states have internal predecessors, (125), 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) [2022-02-09 13:21:56,418 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-09 13:21:56,418 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-02-09 13:21:56,418 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2022-02-09 13:21:56,418 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-09 13:21:56,481 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-09 13:21:56,481 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-09 13:21:56,481 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-02-09 13:21:56,481 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-02-09 13:21:56,501 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2022-02-09 13:21:56,694 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable20 [2022-02-09 13:21:56,695 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0INUSE_VIOLATION === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-09 13:21:56,695 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 13:21:56,695 INFO L85 PathProgramCache]: Analyzing trace with hash 531540147, now seen corresponding path program 1 times [2022-02-09 13:21:56,695 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 13:21:56,695 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1540102958] [2022-02-09 13:21:56,695 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 13:21:56,695 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 13:21:56,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-09 13:21:56,705 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-09 13:21:56,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-09 13:21:56,717 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-09 13:21:56,718 INFO L628 BasicCegarLoop]: Counterexample is feasible [2022-02-09 13:21:56,718 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATION (1 of 2 remaining) [2022-02-09 13:21:56,718 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATION (0 of 2 remaining) [2022-02-09 13:21:56,718 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-02-09 13:21:56,719 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2022-02-09 13:21:56,720 INFO L309 ceAbstractionStarter]: Result for error location ULTIMATE.start was UNSAFE,UNKNOWN (1/4) [2022-02-09 13:21:56,720 WARN L235 ceAbstractionStarter]: 3 thread instances were not sufficient, I will increase this number and restart the analysis [2022-02-09 13:21:56,720 INFO L534 ceAbstractionStarter]: Constructing petrified ICFG for 4 thread instances. [2022-02-09 13:21:56,733 WARN L322 ript$VariableManager]: TermVariabe |setThreadThread3of4ForFork0_#in~param.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 13:21:56,733 WARN L322 ript$VariableManager]: TermVariabe |setThreadThread3of4ForFork0_#in~param.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 13:21:56,733 WARN L322 ript$VariableManager]: TermVariabe setThreadThread3of4ForFork0_~param.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 13:21:56,733 WARN L322 ript$VariableManager]: TermVariabe setThreadThread3of4ForFork0_~param.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 13:21:56,733 WARN L322 ript$VariableManager]: TermVariabe |setThreadThread3of4ForFork0_#in~param.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 13:21:56,733 WARN L322 ript$VariableManager]: TermVariabe |setThreadThread3of4ForFork0_#in~param.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 13:21:56,733 WARN L322 ript$VariableManager]: TermVariabe setThreadThread3of4ForFork0_~param.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 13:21:56,733 WARN L322 ript$VariableManager]: TermVariabe setThreadThread3of4ForFork0_~param.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 13:21:56,734 WARN L322 ript$VariableManager]: TermVariabe |setThreadThread3of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 13:21:56,734 WARN L322 ript$VariableManager]: TermVariabe |setThreadThread3of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 13:21:56,734 WARN L322 ript$VariableManager]: TermVariabe |setThreadThread3of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 13:21:56,734 WARN L322 ript$VariableManager]: TermVariabe |setThreadThread3of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 13:21:56,734 WARN L322 ript$VariableManager]: TermVariabe |setThreadThread4of4ForFork0_#in~param.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 13:21:56,734 WARN L322 ript$VariableManager]: TermVariabe |setThreadThread4of4ForFork0_#in~param.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 13:21:56,734 WARN L322 ript$VariableManager]: TermVariabe setThreadThread4of4ForFork0_~param.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 13:21:56,734 WARN L322 ript$VariableManager]: TermVariabe setThreadThread4of4ForFork0_~param.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 13:21:56,734 WARN L322 ript$VariableManager]: TermVariabe |setThreadThread4of4ForFork0_#in~param.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 13:21:56,734 WARN L322 ript$VariableManager]: TermVariabe |setThreadThread4of4ForFork0_#in~param.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 13:21:56,734 WARN L322 ript$VariableManager]: TermVariabe setThreadThread4of4ForFork0_~param.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 13:21:56,734 WARN L322 ript$VariableManager]: TermVariabe setThreadThread4of4ForFork0_~param.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 13:21:56,734 WARN L322 ript$VariableManager]: TermVariabe |setThreadThread4of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 13:21:56,734 WARN L322 ript$VariableManager]: TermVariabe |setThreadThread4of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 13:21:56,734 WARN L322 ript$VariableManager]: TermVariabe |setThreadThread4of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 13:21:56,734 WARN L322 ript$VariableManager]: TermVariabe |setThreadThread4of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 13:21:56,734 WARN L322 ript$VariableManager]: TermVariabe |setThreadThread2of4ForFork0_#in~param.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 13:21:56,734 WARN L322 ript$VariableManager]: TermVariabe |setThreadThread2of4ForFork0_#in~param.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 13:21:56,734 WARN L322 ript$VariableManager]: TermVariabe setThreadThread2of4ForFork0_~param.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 13:21:56,734 WARN L322 ript$VariableManager]: TermVariabe setThreadThread2of4ForFork0_~param.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 13:21:56,735 WARN L322 ript$VariableManager]: TermVariabe |setThreadThread2of4ForFork0_#in~param.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 13:21:56,735 WARN L322 ript$VariableManager]: TermVariabe |setThreadThread2of4ForFork0_#in~param.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 13:21:56,735 WARN L322 ript$VariableManager]: TermVariabe setThreadThread2of4ForFork0_~param.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 13:21:56,735 WARN L322 ript$VariableManager]: TermVariabe setThreadThread2of4ForFork0_~param.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 13:21:56,735 WARN L322 ript$VariableManager]: TermVariabe |setThreadThread2of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 13:21:56,735 WARN L322 ript$VariableManager]: TermVariabe |setThreadThread2of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 13:21:56,735 WARN L322 ript$VariableManager]: TermVariabe |setThreadThread2of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 13:21:56,735 WARN L322 ript$VariableManager]: TermVariabe |setThreadThread2of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 13:21:56,735 WARN L322 ript$VariableManager]: TermVariabe |setThreadThread1of4ForFork0_#in~param.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 13:21:56,735 WARN L322 ript$VariableManager]: TermVariabe |setThreadThread1of4ForFork0_#in~param.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 13:21:56,735 WARN L322 ript$VariableManager]: TermVariabe setThreadThread1of4ForFork0_~param.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 13:21:56,735 WARN L322 ript$VariableManager]: TermVariabe setThreadThread1of4ForFork0_~param.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 13:21:56,735 WARN L322 ript$VariableManager]: TermVariabe |setThreadThread1of4ForFork0_#in~param.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 13:21:56,735 WARN L322 ript$VariableManager]: TermVariabe |setThreadThread1of4ForFork0_#in~param.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 13:21:56,735 WARN L322 ript$VariableManager]: TermVariabe setThreadThread1of4ForFork0_~param.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 13:21:56,735 WARN L322 ript$VariableManager]: TermVariabe setThreadThread1of4ForFork0_~param.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 13:21:56,735 WARN L322 ript$VariableManager]: TermVariabe |setThreadThread1of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 13:21:56,735 WARN L322 ript$VariableManager]: TermVariabe |setThreadThread1of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 13:21:56,735 WARN L322 ript$VariableManager]: TermVariabe |setThreadThread1of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 13:21:56,736 WARN L322 ript$VariableManager]: TermVariabe |setThreadThread1of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 13:21:56,736 WARN L322 ript$VariableManager]: TermVariabe |checkThreadThread4of4ForFork1_#in~param.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 13:21:56,736 WARN L322 ript$VariableManager]: TermVariabe |checkThreadThread4of4ForFork1_#in~param.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 13:21:56,736 WARN L322 ript$VariableManager]: TermVariabe checkThreadThread4of4ForFork1_~param.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 13:21:56,736 WARN L322 ript$VariableManager]: TermVariabe checkThreadThread4of4ForFork1_~param.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 13:21:56,736 WARN L322 ript$VariableManager]: TermVariabe |checkThreadThread4of4ForFork1_#in~param.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 13:21:56,736 WARN L322 ript$VariableManager]: TermVariabe |checkThreadThread4of4ForFork1_#in~param.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 13:21:56,736 WARN L322 ript$VariableManager]: TermVariabe checkThreadThread4of4ForFork1_~param.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 13:21:56,736 WARN L322 ript$VariableManager]: TermVariabe checkThreadThread4of4ForFork1_~param.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 13:21:56,736 WARN L322 ript$VariableManager]: TermVariabe |checkThreadThread4of4ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 13:21:56,736 WARN L322 ript$VariableManager]: TermVariabe |checkThreadThread4of4ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 13:21:56,737 WARN L322 ript$VariableManager]: TermVariabe |checkThreadThread4of4ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 13:21:56,737 WARN L322 ript$VariableManager]: TermVariabe |checkThreadThread4of4ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 13:21:56,737 WARN L322 ript$VariableManager]: TermVariabe |checkThreadThread3of4ForFork1_#in~param.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 13:21:56,737 WARN L322 ript$VariableManager]: TermVariabe |checkThreadThread3of4ForFork1_#in~param.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 13:21:56,737 WARN L322 ript$VariableManager]: TermVariabe checkThreadThread3of4ForFork1_~param.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 13:21:56,737 WARN L322 ript$VariableManager]: TermVariabe checkThreadThread3of4ForFork1_~param.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 13:21:56,737 WARN L322 ript$VariableManager]: TermVariabe |checkThreadThread3of4ForFork1_#in~param.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 13:21:56,737 WARN L322 ript$VariableManager]: TermVariabe |checkThreadThread3of4ForFork1_#in~param.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 13:21:56,737 WARN L322 ript$VariableManager]: TermVariabe checkThreadThread3of4ForFork1_~param.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 13:21:56,737 WARN L322 ript$VariableManager]: TermVariabe checkThreadThread3of4ForFork1_~param.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 13:21:56,737 WARN L322 ript$VariableManager]: TermVariabe |checkThreadThread3of4ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 13:21:56,737 WARN L322 ript$VariableManager]: TermVariabe |checkThreadThread3of4ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 13:21:56,737 WARN L322 ript$VariableManager]: TermVariabe |checkThreadThread3of4ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 13:21:56,737 WARN L322 ript$VariableManager]: TermVariabe |checkThreadThread3of4ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 13:21:56,737 WARN L322 ript$VariableManager]: TermVariabe |checkThreadThread2of4ForFork1_#in~param.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 13:21:56,738 WARN L322 ript$VariableManager]: TermVariabe |checkThreadThread2of4ForFork1_#in~param.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 13:21:56,738 WARN L322 ript$VariableManager]: TermVariabe checkThreadThread2of4ForFork1_~param.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 13:21:56,738 WARN L322 ript$VariableManager]: TermVariabe checkThreadThread2of4ForFork1_~param.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 13:21:56,738 WARN L322 ript$VariableManager]: TermVariabe |checkThreadThread2of4ForFork1_#in~param.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 13:21:56,738 WARN L322 ript$VariableManager]: TermVariabe |checkThreadThread2of4ForFork1_#in~param.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 13:21:56,738 WARN L322 ript$VariableManager]: TermVariabe checkThreadThread2of4ForFork1_~param.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 13:21:56,738 WARN L322 ript$VariableManager]: TermVariabe checkThreadThread2of4ForFork1_~param.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 13:21:56,738 WARN L322 ript$VariableManager]: TermVariabe |checkThreadThread2of4ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 13:21:56,738 WARN L322 ript$VariableManager]: TermVariabe |checkThreadThread2of4ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 13:21:56,738 WARN L322 ript$VariableManager]: TermVariabe |checkThreadThread2of4ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 13:21:56,738 WARN L322 ript$VariableManager]: TermVariabe |checkThreadThread2of4ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 13:21:56,738 WARN L322 ript$VariableManager]: TermVariabe |checkThreadThread1of4ForFork1_#in~param.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 13:21:56,738 WARN L322 ript$VariableManager]: TermVariabe |checkThreadThread1of4ForFork1_#in~param.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 13:21:56,738 WARN L322 ript$VariableManager]: TermVariabe checkThreadThread1of4ForFork1_~param.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 13:21:56,738 WARN L322 ript$VariableManager]: TermVariabe checkThreadThread1of4ForFork1_~param.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 13:21:56,738 WARN L322 ript$VariableManager]: TermVariabe |checkThreadThread1of4ForFork1_#in~param.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 13:21:56,738 WARN L322 ript$VariableManager]: TermVariabe |checkThreadThread1of4ForFork1_#in~param.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 13:21:56,738 WARN L322 ript$VariableManager]: TermVariabe checkThreadThread1of4ForFork1_~param.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 13:21:56,738 WARN L322 ript$VariableManager]: TermVariabe checkThreadThread1of4ForFork1_~param.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 13:21:56,739 WARN L322 ript$VariableManager]: TermVariabe |checkThreadThread1of4ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 13:21:56,739 WARN L322 ript$VariableManager]: TermVariabe |checkThreadThread1of4ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 13:21:56,739 WARN L322 ript$VariableManager]: TermVariabe |checkThreadThread1of4ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 13:21:56,739 WARN L322 ript$VariableManager]: TermVariabe |checkThreadThread1of4ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 13:21:56,742 WARN L322 ript$VariableManager]: TermVariabe |setThreadThread1of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 13:21:56,742 WARN L322 ript$VariableManager]: TermVariabe setThreadThread1of4ForFork0_~param.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 13:21:56,743 WARN L322 ript$VariableManager]: TermVariabe |setThreadThread1of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 13:21:56,743 WARN L322 ript$VariableManager]: TermVariabe setThreadThread1of4ForFork0_~param.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 13:21:56,743 WARN L322 ript$VariableManager]: TermVariabe |setThreadThread2of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 13:21:56,743 WARN L322 ript$VariableManager]: TermVariabe |setThreadThread2of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 13:21:56,743 WARN L322 ript$VariableManager]: TermVariabe setThreadThread2of4ForFork0_~param.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 13:21:56,743 WARN L322 ript$VariableManager]: TermVariabe setThreadThread2of4ForFork0_~param.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 13:21:56,743 WARN L322 ript$VariableManager]: TermVariabe |setThreadThread3of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 13:21:56,743 WARN L322 ript$VariableManager]: TermVariabe |setThreadThread3of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 13:21:56,743 WARN L322 ript$VariableManager]: TermVariabe setThreadThread3of4ForFork0_~param.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 13:21:56,743 WARN L322 ript$VariableManager]: TermVariabe setThreadThread3of4ForFork0_~param.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 13:21:56,744 WARN L322 ript$VariableManager]: TermVariabe setThreadThread4of4ForFork0_~param.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 13:21:56,744 WARN L322 ript$VariableManager]: TermVariabe |setThreadThread4of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 13:21:56,744 WARN L322 ript$VariableManager]: TermVariabe |setThreadThread4of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 13:21:56,744 WARN L322 ript$VariableManager]: TermVariabe setThreadThread4of4ForFork0_~param.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 13:21:56,744 WARN L322 ript$VariableManager]: TermVariabe checkThreadThread1of4ForFork1_~param.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 13:21:56,744 WARN L322 ript$VariableManager]: TermVariabe |checkThreadThread1of4ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 13:21:56,744 WARN L322 ript$VariableManager]: TermVariabe |checkThreadThread1of4ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 13:21:56,744 WARN L322 ript$VariableManager]: TermVariabe checkThreadThread1of4ForFork1_~param.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 13:21:56,744 WARN L322 ript$VariableManager]: TermVariabe checkThreadThread2of4ForFork1_~param.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 13:21:56,744 WARN L322 ript$VariableManager]: TermVariabe |checkThreadThread2of4ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 13:21:56,744 WARN L322 ript$VariableManager]: TermVariabe |checkThreadThread2of4ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 13:21:56,744 WARN L322 ript$VariableManager]: TermVariabe checkThreadThread2of4ForFork1_~param.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 13:21:56,745 WARN L322 ript$VariableManager]: TermVariabe checkThreadThread3of4ForFork1_~param.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 13:21:56,745 WARN L322 ript$VariableManager]: TermVariabe checkThreadThread3of4ForFork1_~param.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 13:21:56,745 WARN L322 ript$VariableManager]: TermVariabe |checkThreadThread3of4ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 13:21:56,745 WARN L322 ript$VariableManager]: TermVariabe |checkThreadThread3of4ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 13:21:56,745 WARN L322 ript$VariableManager]: TermVariabe checkThreadThread4of4ForFork1_~param.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 13:21:56,745 WARN L322 ript$VariableManager]: TermVariabe |checkThreadThread4of4ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 13:21:56,745 WARN L322 ript$VariableManager]: TermVariabe checkThreadThread4of4ForFork1_~param.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 13:21:56,745 WARN L322 ript$VariableManager]: TermVariabe |checkThreadThread4of4ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 13:21:56,753 INFO L148 ThreadInstanceAdder]: Constructed 16 joinOtherThreadTransitions. [2022-02-09 13:21:56,755 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-02-09 13:21:56,756 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-09 13:21:56,756 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2022-02-09 13:21:56,757 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (15)] Waiting until timeout for monitored process [2022-02-09 13:21:56,760 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == checkThreadThread4of4ForFork1 ======== [2022-02-09 13:21:56,760 INFO L339 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, mLazyFiniteAutomaton=true, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2022-02-09 13:21:56,760 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-02-09 13:21:56,840 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting checkThreadErr0ASSERT_VIOLATIONERROR_FUNCTION === [checkThreadErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-09 13:21:56,840 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 13:21:56,841 INFO L85 PathProgramCache]: Analyzing trace with hash -292138606, now seen corresponding path program 1 times [2022-02-09 13:21:56,841 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 13:21:56,841 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [743757062] [2022-02-09 13:21:56,841 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 13:21:56,841 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 13:21:56,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 13:21:56,851 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2022-02-09 13:21:56,851 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 13:21:56,852 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [743757062] [2022-02-09 13:21:56,852 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [743757062] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 13:21:56,852 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 13:21:56,852 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-02-09 13:21:56,852 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [259127389] [2022-02-09 13:21:56,852 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 13:21:56,852 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-02-09 13:21:56,852 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 13:21:56,852 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-02-09 13:21:56,852 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-02-09 13:21:56,852 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-09 13:21:56,852 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-09 13:21:56,853 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 26.0) internal successors, (52), 2 states have internal predecessors, (52), 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) [2022-02-09 13:21:56,853 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-09 13:21:56,857 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-09 13:21:56,857 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-02-09 13:21:56,857 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting checkThreadErr0ASSERT_VIOLATIONERROR_FUNCTION === [checkThreadErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-09 13:21:56,857 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 13:21:56,857 INFO L85 PathProgramCache]: Analyzing trace with hash 477031409, now seen corresponding path program 1 times [2022-02-09 13:21:56,857 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 13:21:56,857 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1632584011] [2022-02-09 13:21:56,857 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 13:21:56,857 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 13:21:56,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 13:21:56,871 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2022-02-09 13:21:56,871 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 13:21:56,871 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1632584011] [2022-02-09 13:21:56,871 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1632584011] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 13:21:56,871 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 13:21:56,871 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-02-09 13:21:56,871 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [460935700] [2022-02-09 13:21:56,871 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 13:21:56,872 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-02-09 13:21:56,872 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 13:21:56,872 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-02-09 13:21:56,872 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-02-09 13:21:56,872 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-09 13:21:56,872 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-09 13:21:56,872 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 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) [2022-02-09 13:21:56,872 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-09 13:21:56,872 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-09 13:21:56,913 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-09 13:21:56,913 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-09 13:21:56,913 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-02-09 13:21:56,913 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting checkThreadErr0ASSERT_VIOLATIONERROR_FUNCTION === [checkThreadErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-09 13:21:56,913 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 13:21:56,914 INFO L85 PathProgramCache]: Analyzing trace with hash -959640894, now seen corresponding path program 1 times [2022-02-09 13:21:56,914 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 13:21:56,914 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [211675245] [2022-02-09 13:21:56,914 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 13:21:56,914 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 13:21:56,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 13:21:56,945 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2022-02-09 13:21:56,945 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 13:21:56,945 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [211675245] [2022-02-09 13:21:56,945 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [211675245] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-09 13:21:56,945 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [482785539] [2022-02-09 13:21:56,945 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 13:21:56,945 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-09 13:21:56,946 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-09 13:21:56,952 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-09 13:21:56,953 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2022-02-09 13:21:57,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 13:21:57,035 INFO L263 TraceCheckSpWp]: Trace formula consists of 228 conjuncts, 4 conjunts are in the unsatisfiable core [2022-02-09 13:21:57,036 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-09 13:21:57,126 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2022-02-09 13:21:57,126 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-09 13:21:57,235 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2022-02-09 13:21:57,235 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [482785539] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-09 13:21:57,235 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-09 13:21:57,235 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2022-02-09 13:21:57,236 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1884009860] [2022-02-09 13:21:57,236 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-09 13:21:57,236 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-02-09 13:21:57,236 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 13:21:57,236 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-02-09 13:21:57,236 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2022-02-09 13:21:57,236 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-09 13:21:57,236 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-09 13:21:57,237 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 8.9) internal successors, (89), 10 states have internal predecessors, (89), 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) [2022-02-09 13:21:57,237 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-09 13:21:57,237 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-02-09 13:21:57,237 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-09 13:21:57,333 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-09 13:21:57,333 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-09 13:21:57,333 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-02-09 13:21:57,357 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2022-02-09 13:21:57,536 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24,16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-09 13:21:57,537 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting checkThreadErr0ASSERT_VIOLATIONERROR_FUNCTION === [checkThreadErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-09 13:21:57,537 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 13:21:57,537 INFO L85 PathProgramCache]: Analyzing trace with hash -1151422631, now seen corresponding path program 1 times [2022-02-09 13:21:57,537 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 13:21:57,537 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [802939349] [2022-02-09 13:21:57,537 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 13:21:57,537 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 13:21:57,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 13:21:57,573 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 26 proven. 1 refuted. 0 times theorem prover too weak. 51 trivial. 0 not checked. [2022-02-09 13:21:57,573 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 13:21:57,573 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [802939349] [2022-02-09 13:21:57,573 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [802939349] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-09 13:21:57,573 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1531282898] [2022-02-09 13:21:57,573 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 13:21:57,573 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-09 13:21:57,573 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-09 13:21:57,580 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-09 13:21:57,581 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2022-02-09 13:21:57,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 13:21:57,671 INFO L263 TraceCheckSpWp]: Trace formula consists of 298 conjuncts, 8 conjunts are in the unsatisfiable core [2022-02-09 13:21:57,673 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-09 13:21:57,889 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 0 proven. 33 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2022-02-09 13:21:57,889 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-09 13:21:58,089 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 0 proven. 33 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2022-02-09 13:21:58,089 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1531282898] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-09 13:21:58,089 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-09 13:21:58,089 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 9, 9] total 19 [2022-02-09 13:21:58,089 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1233876420] [2022-02-09 13:21:58,089 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-09 13:21:58,090 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-02-09 13:21:58,090 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 13:21:58,090 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-02-09 13:21:58,090 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=86, Invalid=256, Unknown=0, NotChecked=0, Total=342 [2022-02-09 13:21:58,090 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-09 13:21:58,090 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-09 13:21:58,091 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 9.473684210526315) internal successors, (180), 19 states have internal predecessors, (180), 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) [2022-02-09 13:21:58,091 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-09 13:21:58,091 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-02-09 13:21:58,091 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2022-02-09 13:21:58,091 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-09 13:22:00,035 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-09 13:22:00,035 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-09 13:22:00,035 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-02-09 13:22:00,035 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-02-09 13:22:00,035 INFO L764 garLoopResultBuilder]: Registering result SAFE for location checkThreadErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-02-09 13:22:00,055 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Forceful destruction successful, exit code 0 [2022-02-09 13:22:00,239 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable25 [2022-02-09 13:22:00,240 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2022-02-09 13:22:00,240 INFO L309 ceAbstractionStarter]: Result for error location checkThreadThread4of4ForFork1 was SAFE (1/5) [2022-02-09 13:22:00,241 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-02-09 13:22:00,241 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-09 13:22:00,244 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2022-02-09 13:22:00,248 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == checkThreadThread3of4ForFork1 ======== [2022-02-09 13:22:00,248 INFO L339 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, mLazyFiniteAutomaton=true, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2022-02-09 13:22:00,249 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-02-09 13:22:00,255 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (18)] Waiting until timeout for monitored process [2022-02-09 13:22:00,367 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting checkThreadErr0ASSERT_VIOLATIONERROR_FUNCTION === [checkThreadErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-09 13:22:00,368 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 13:22:00,368 INFO L85 PathProgramCache]: Analyzing trace with hash 1638889098, now seen corresponding path program 1 times [2022-02-09 13:22:00,368 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 13:22:00,368 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1332009745] [2022-02-09 13:22:00,368 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 13:22:00,368 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 13:22:00,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 13:22:00,379 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-02-09 13:22:00,379 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 13:22:00,379 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1332009745] [2022-02-09 13:22:00,380 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1332009745] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 13:22:00,380 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 13:22:00,380 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-02-09 13:22:00,380 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [39100102] [2022-02-09 13:22:00,380 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 13:22:00,380 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-02-09 13:22:00,380 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 13:22:00,380 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-02-09 13:22:00,380 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-02-09 13:22:00,380 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-09 13:22:00,381 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-09 13:22:00,381 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 23.5) internal successors, (47), 2 states have internal predecessors, (47), 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) [2022-02-09 13:22:00,381 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-09 13:22:00,384 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-09 13:22:00,384 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2022-02-09 13:22:00,384 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting checkThreadErr0ASSERT_VIOLATIONERROR_FUNCTION === [checkThreadErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-09 13:22:00,384 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 13:22:00,384 INFO L85 PathProgramCache]: Analyzing trace with hash -1023274199, now seen corresponding path program 1 times [2022-02-09 13:22:00,384 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 13:22:00,384 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1267738151] [2022-02-09 13:22:00,384 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 13:22:00,384 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 13:22:00,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 13:22:00,401 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-02-09 13:22:00,402 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 13:22:00,402 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1267738151] [2022-02-09 13:22:00,402 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1267738151] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 13:22:00,402 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 13:22:00,402 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-02-09 13:22:00,402 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [884195651] [2022-02-09 13:22:00,402 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 13:22:00,402 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-02-09 13:22:00,402 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 13:22:00,402 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-02-09 13:22:00,403 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-02-09 13:22:00,403 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-09 13:22:00,403 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-09 13:22:00,403 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 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) [2022-02-09 13:22:00,403 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-09 13:22:00,403 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-09 13:22:00,455 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-09 13:22:00,456 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-09 13:22:00,456 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2022-02-09 13:22:00,456 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting checkThreadErr0ASSERT_VIOLATIONERROR_FUNCTION === [checkThreadErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-09 13:22:00,456 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 13:22:00,456 INFO L85 PathProgramCache]: Analyzing trace with hash -1845689414, now seen corresponding path program 1 times [2022-02-09 13:22:00,456 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 13:22:00,456 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [298826810] [2022-02-09 13:22:00,456 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 13:22:00,456 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 13:22:00,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 13:22:00,491 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-02-09 13:22:00,491 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 13:22:00,491 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [298826810] [2022-02-09 13:22:00,491 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [298826810] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-09 13:22:00,491 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [890396765] [2022-02-09 13:22:00,491 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 13:22:00,492 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-09 13:22:00,492 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-09 13:22:00,503 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-09 13:22:00,506 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2022-02-09 13:22:00,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 13:22:00,592 INFO L263 TraceCheckSpWp]: Trace formula consists of 196 conjuncts, 4 conjunts are in the unsatisfiable core [2022-02-09 13:22:00,593 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-09 13:22:00,671 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-02-09 13:22:00,671 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-09 13:22:00,759 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-02-09 13:22:00,760 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [890396765] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-09 13:22:00,760 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-09 13:22:00,760 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2022-02-09 13:22:00,760 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1217515142] [2022-02-09 13:22:00,760 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-09 13:22:00,760 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-02-09 13:22:00,760 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 13:22:00,761 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-02-09 13:22:00,761 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2022-02-09 13:22:00,761 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-09 13:22:00,761 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-09 13:22:00,761 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 8.4) internal successors, (84), 10 states have internal predecessors, (84), 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) [2022-02-09 13:22:00,761 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-09 13:22:00,762 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-02-09 13:22:00,762 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-09 13:22:00,870 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-09 13:22:00,871 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-09 13:22:00,871 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-02-09 13:22:00,888 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Forceful destruction successful, exit code 0 [2022-02-09 13:22:01,087 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable28 [2022-02-09 13:22:01,087 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting checkThreadErr0ASSERT_VIOLATIONERROR_FUNCTION === [checkThreadErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-09 13:22:01,087 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 13:22:01,087 INFO L85 PathProgramCache]: Analyzing trace with hash -908170095, now seen corresponding path program 1 times [2022-02-09 13:22:01,088 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 13:22:01,088 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [547924764] [2022-02-09 13:22:01,088 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 13:22:01,088 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 13:22:01,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 13:22:01,118 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 15 proven. 1 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2022-02-09 13:22:01,119 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 13:22:01,119 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [547924764] [2022-02-09 13:22:01,119 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [547924764] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-09 13:22:01,119 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [819784083] [2022-02-09 13:22:01,119 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 13:22:01,119 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-09 13:22:01,119 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-09 13:22:01,120 INFO L229 MonitoredProcess]: Starting monitored process 20 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-09 13:22:01,134 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2022-02-09 13:22:01,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 13:22:01,220 INFO L263 TraceCheckSpWp]: Trace formula consists of 266 conjuncts, 8 conjunts are in the unsatisfiable core [2022-02-09 13:22:01,221 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-09 13:22:01,368 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 0 proven. 33 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-02-09 13:22:01,368 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-09 13:22:01,545 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 0 proven. 33 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-02-09 13:22:01,545 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [819784083] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-09 13:22:01,545 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-09 13:22:01,546 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 9, 9] total 19 [2022-02-09 13:22:01,546 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [37829250] [2022-02-09 13:22:01,546 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-09 13:22:01,546 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-02-09 13:22:01,546 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 13:22:01,546 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-02-09 13:22:01,547 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=86, Invalid=256, Unknown=0, NotChecked=0, Total=342 [2022-02-09 13:22:01,547 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-09 13:22:01,547 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-09 13:22:01,547 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 9.210526315789474) internal successors, (175), 19 states have internal predecessors, (175), 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) [2022-02-09 13:22:01,547 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-09 13:22:01,547 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-02-09 13:22:01,547 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2022-02-09 13:22:01,547 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-09 13:22:03,324 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-09 13:22:03,324 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-09 13:22:03,325 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-02-09 13:22:03,325 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-02-09 13:22:03,325 INFO L764 garLoopResultBuilder]: Registering result SAFE for location checkThreadErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-02-09 13:22:03,344 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Forceful destruction successful, exit code 0 [2022-02-09 13:22:03,536 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,20 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-09 13:22:03,537 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2022-02-09 13:22:03,537 INFO L309 ceAbstractionStarter]: Result for error location checkThreadThread3of4ForFork1 was SAFE (2/5) [2022-02-09 13:22:03,538 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-02-09 13:22:03,538 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-09 13:22:03,539 INFO L229 MonitoredProcess]: Starting monitored process 21 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2022-02-09 13:22:03,540 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (21)] Waiting until timeout for monitored process [2022-02-09 13:22:03,541 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2022-02-09 13:22:03,542 INFO L339 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, mLazyFiniteAutomaton=true, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2022-02-09 13:22:03,542 INFO L340 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-02-09 13:22:03,579 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATION === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-09 13:22:03,579 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 13:22:03,579 INFO L85 PathProgramCache]: Analyzing trace with hash -196281834, now seen corresponding path program 1 times [2022-02-09 13:22:03,580 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 13:22:03,580 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [292132972] [2022-02-09 13:22:03,580 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 13:22:03,580 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 13:22:03,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 13:22:03,591 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 80 trivial. 0 not checked. [2022-02-09 13:22:03,591 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 13:22:03,591 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [292132972] [2022-02-09 13:22:03,591 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [292132972] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 13:22:03,591 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 13:22:03,591 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-02-09 13:22:03,591 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [130609177] [2022-02-09 13:22:03,591 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 13:22:03,591 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-02-09 13:22:03,591 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 13:22:03,592 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-02-09 13:22:03,592 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-02-09 13:22:03,592 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-09 13:22:03,592 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-09 13:22:03,592 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 19.0) internal successors, (38), 2 states have internal predecessors, (38), 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) [2022-02-09 13:22:03,592 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-09 13:22:03,596 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-09 13:22:03,596 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2022-02-09 13:22:03,596 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0INUSE_VIOLATION === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-09 13:22:03,596 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 13:22:03,596 INFO L85 PathProgramCache]: Analyzing trace with hash 1774657623, now seen corresponding path program 1 times [2022-02-09 13:22:03,596 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 13:22:03,597 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [723778309] [2022-02-09 13:22:03,597 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 13:22:03,597 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 13:22:03,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 13:22:03,610 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 80 trivial. 0 not checked. [2022-02-09 13:22:03,610 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 13:22:03,610 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [723778309] [2022-02-09 13:22:03,610 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [723778309] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 13:22:03,611 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 13:22:03,611 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-02-09 13:22:03,611 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [105856936] [2022-02-09 13:22:03,611 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 13:22:03,611 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-02-09 13:22:03,611 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 13:22:03,611 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-02-09 13:22:03,612 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-02-09 13:22:03,612 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-09 13:22:03,612 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-09 13:22:03,612 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 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) [2022-02-09 13:22:03,612 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-09 13:22:03,612 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-09 13:22:03,637 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-09 13:22:03,638 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-09 13:22:03,638 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2022-02-09 13:22:03,638 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0INUSE_VIOLATION === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-09 13:22:03,638 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 13:22:03,638 INFO L85 PathProgramCache]: Analyzing trace with hash -688195387, now seen corresponding path program 1 times [2022-02-09 13:22:03,638 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 13:22:03,638 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1223188159] [2022-02-09 13:22:03,638 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 13:22:03,639 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 13:22:03,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 13:22:03,663 INFO L134 CoverageAnalysis]: Checked inductivity of 81 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 80 trivial. 0 not checked. [2022-02-09 13:22:03,664 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 13:22:03,664 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1223188159] [2022-02-09 13:22:03,664 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1223188159] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-09 13:22:03,664 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [965044179] [2022-02-09 13:22:03,664 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 13:22:03,664 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-09 13:22:03,664 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-09 13:22:03,665 INFO L229 MonitoredProcess]: Starting monitored process 22 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-09 13:22:03,667 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2022-02-09 13:22:03,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 13:22:03,747 INFO L263 TraceCheckSpWp]: Trace formula consists of 195 conjuncts, 4 conjunts are in the unsatisfiable core [2022-02-09 13:22:03,748 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-09 13:22:03,816 INFO L134 CoverageAnalysis]: Checked inductivity of 81 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 80 trivial. 0 not checked. [2022-02-09 13:22:03,816 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-09 13:22:03,903 INFO L134 CoverageAnalysis]: Checked inductivity of 81 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 80 trivial. 0 not checked. [2022-02-09 13:22:03,904 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [965044179] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-09 13:22:03,904 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-09 13:22:03,904 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2022-02-09 13:22:03,904 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [101497891] [2022-02-09 13:22:03,904 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-09 13:22:03,905 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-02-09 13:22:03,905 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 13:22:03,905 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-02-09 13:22:03,905 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2022-02-09 13:22:03,905 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-09 13:22:03,906 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-09 13:22:03,906 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 7.0) internal successors, (70), 10 states have internal predecessors, (70), 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) [2022-02-09 13:22:03,906 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-09 13:22:03,906 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-02-09 13:22:03,906 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-09 13:22:03,969 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-09 13:22:03,969 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-09 13:22:03,969 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-02-09 13:22:03,988 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Forceful destruction successful, exit code 0 [2022-02-09 13:22:04,178 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable32 [2022-02-09 13:22:04,178 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0INUSE_VIOLATION === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-09 13:22:04,178 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 13:22:04,178 INFO L85 PathProgramCache]: Analyzing trace with hash -300163996, now seen corresponding path program 1 times [2022-02-09 13:22:04,179 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 13:22:04,179 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1481845836] [2022-02-09 13:22:04,179 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 13:22:04,179 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 13:22:04,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 13:22:04,209 INFO L134 CoverageAnalysis]: Checked inductivity of 113 backedges. 37 proven. 1 refuted. 0 times theorem prover too weak. 75 trivial. 0 not checked. [2022-02-09 13:22:04,209 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 13:22:04,209 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1481845836] [2022-02-09 13:22:04,209 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1481845836] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-09 13:22:04,209 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1720982910] [2022-02-09 13:22:04,209 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 13:22:04,209 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-09 13:22:04,209 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-09 13:22:04,210 INFO L229 MonitoredProcess]: Starting monitored process 23 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-09 13:22:04,247 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process [2022-02-09 13:22:04,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 13:22:04,323 INFO L263 TraceCheckSpWp]: Trace formula consists of 239 conjuncts, 8 conjunts are in the unsatisfiable core [2022-02-09 13:22:04,324 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-09 13:22:04,479 INFO L134 CoverageAnalysis]: Checked inductivity of 113 backedges. 0 proven. 33 refuted. 0 times theorem prover too weak. 80 trivial. 0 not checked. [2022-02-09 13:22:04,479 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-09 13:22:04,675 INFO L134 CoverageAnalysis]: Checked inductivity of 113 backedges. 0 proven. 33 refuted. 0 times theorem prover too weak. 80 trivial. 0 not checked. [2022-02-09 13:22:04,676 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1720982910] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-09 13:22:04,676 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-09 13:22:04,676 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 9, 9] total 19 [2022-02-09 13:22:04,676 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1698609681] [2022-02-09 13:22:04,676 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-09 13:22:04,676 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-02-09 13:22:04,676 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 13:22:04,676 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-02-09 13:22:04,677 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=86, Invalid=256, Unknown=0, NotChecked=0, Total=342 [2022-02-09 13:22:04,677 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-09 13:22:04,677 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-09 13:22:04,677 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 6.631578947368421) internal successors, (126), 19 states have internal predecessors, (126), 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) [2022-02-09 13:22:04,677 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-09 13:22:04,677 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-02-09 13:22:04,677 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2022-02-09 13:22:04,677 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-09 13:22:04,765 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-09 13:22:04,765 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-09 13:22:04,765 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-02-09 13:22:04,766 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-02-09 13:22:04,785 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Forceful destruction successful, exit code 0 [2022-02-09 13:22:04,978 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33,23 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-09 13:22:04,978 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1INUSE_VIOLATION === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-09 13:22:04,979 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 13:22:04,979 INFO L85 PathProgramCache]: Analyzing trace with hash 1304944362, now seen corresponding path program 1 times [2022-02-09 13:22:04,979 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 13:22:04,979 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1009317003] [2022-02-09 13:22:04,979 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 13:22:04,979 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 13:22:04,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-09 13:22:04,988 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-09 13:22:04,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-09 13:22:04,997 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-09 13:22:04,997 INFO L628 BasicCegarLoop]: Counterexample is feasible [2022-02-09 13:22:04,997 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1INUSE_VIOLATION (1 of 2 remaining) [2022-02-09 13:22:04,998 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATION (0 of 2 remaining) [2022-02-09 13:22:04,998 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2022-02-09 13:22:04,998 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2022-02-09 13:22:04,998 INFO L309 ceAbstractionStarter]: Result for error location ULTIMATE.start was UNSAFE,UNKNOWN (3/5) [2022-02-09 13:22:04,999 WARN L235 ceAbstractionStarter]: 4 thread instances were not sufficient, I will increase this number and restart the analysis [2022-02-09 13:22:04,999 INFO L534 ceAbstractionStarter]: Constructing petrified ICFG for 5 thread instances. [2022-02-09 13:22:05,008 WARN L322 ript$VariableManager]: TermVariabe |setThreadThread5of5ForFork0_#in~param.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 13:22:05,008 WARN L322 ript$VariableManager]: TermVariabe |setThreadThread5of5ForFork0_#in~param.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 13:22:05,009 WARN L322 ript$VariableManager]: TermVariabe setThreadThread5of5ForFork0_~param.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 13:22:05,009 WARN L322 ript$VariableManager]: TermVariabe setThreadThread5of5ForFork0_~param.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 13:22:05,009 WARN L322 ript$VariableManager]: TermVariabe |setThreadThread5of5ForFork0_#in~param.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 13:22:05,009 WARN L322 ript$VariableManager]: TermVariabe |setThreadThread5of5ForFork0_#in~param.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 13:22:05,009 WARN L322 ript$VariableManager]: TermVariabe setThreadThread5of5ForFork0_~param.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 13:22:05,009 WARN L322 ript$VariableManager]: TermVariabe setThreadThread5of5ForFork0_~param.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 13:22:05,009 WARN L322 ript$VariableManager]: TermVariabe |setThreadThread5of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 13:22:05,009 WARN L322 ript$VariableManager]: TermVariabe |setThreadThread5of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 13:22:05,009 WARN L322 ript$VariableManager]: TermVariabe |setThreadThread5of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 13:22:05,009 WARN L322 ript$VariableManager]: TermVariabe |setThreadThread5of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 13:22:05,009 WARN L322 ript$VariableManager]: TermVariabe |setThreadThread1of5ForFork0_#in~param.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 13:22:05,009 WARN L322 ript$VariableManager]: TermVariabe |setThreadThread1of5ForFork0_#in~param.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 13:22:05,009 WARN L322 ript$VariableManager]: TermVariabe setThreadThread1of5ForFork0_~param.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 13:22:05,009 WARN L322 ript$VariableManager]: TermVariabe setThreadThread1of5ForFork0_~param.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 13:22:05,009 WARN L322 ript$VariableManager]: TermVariabe |setThreadThread1of5ForFork0_#in~param.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 13:22:05,009 WARN L322 ript$VariableManager]: TermVariabe |setThreadThread1of5ForFork0_#in~param.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 13:22:05,009 WARN L322 ript$VariableManager]: TermVariabe setThreadThread1of5ForFork0_~param.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 13:22:05,009 WARN L322 ript$VariableManager]: TermVariabe setThreadThread1of5ForFork0_~param.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 13:22:05,009 WARN L322 ript$VariableManager]: TermVariabe |setThreadThread1of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 13:22:05,009 WARN L322 ript$VariableManager]: TermVariabe |setThreadThread1of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 13:22:05,010 WARN L322 ript$VariableManager]: TermVariabe |setThreadThread1of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 13:22:05,010 WARN L322 ript$VariableManager]: TermVariabe |setThreadThread1of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 13:22:05,010 WARN L322 ript$VariableManager]: TermVariabe |setThreadThread3of5ForFork0_#in~param.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 13:22:05,010 WARN L322 ript$VariableManager]: TermVariabe |setThreadThread3of5ForFork0_#in~param.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 13:22:05,010 WARN L322 ript$VariableManager]: TermVariabe setThreadThread3of5ForFork0_~param.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 13:22:05,010 WARN L322 ript$VariableManager]: TermVariabe setThreadThread3of5ForFork0_~param.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 13:22:05,010 WARN L322 ript$VariableManager]: TermVariabe |setThreadThread3of5ForFork0_#in~param.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 13:22:05,010 WARN L322 ript$VariableManager]: TermVariabe |setThreadThread3of5ForFork0_#in~param.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 13:22:05,010 WARN L322 ript$VariableManager]: TermVariabe setThreadThread3of5ForFork0_~param.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 13:22:05,010 WARN L322 ript$VariableManager]: TermVariabe setThreadThread3of5ForFork0_~param.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 13:22:05,010 WARN L322 ript$VariableManager]: TermVariabe |setThreadThread3of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 13:22:05,010 WARN L322 ript$VariableManager]: TermVariabe |setThreadThread3of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 13:22:05,010 WARN L322 ript$VariableManager]: TermVariabe |setThreadThread3of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 13:22:05,010 WARN L322 ript$VariableManager]: TermVariabe |setThreadThread3of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 13:22:05,011 WARN L322 ript$VariableManager]: TermVariabe |setThreadThread4of5ForFork0_#in~param.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 13:22:05,011 WARN L322 ript$VariableManager]: TermVariabe |setThreadThread4of5ForFork0_#in~param.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 13:22:05,011 WARN L322 ript$VariableManager]: TermVariabe setThreadThread4of5ForFork0_~param.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 13:22:05,011 WARN L322 ript$VariableManager]: TermVariabe setThreadThread4of5ForFork0_~param.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 13:22:05,011 WARN L322 ript$VariableManager]: TermVariabe |setThreadThread4of5ForFork0_#in~param.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 13:22:05,011 WARN L322 ript$VariableManager]: TermVariabe |setThreadThread4of5ForFork0_#in~param.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 13:22:05,011 WARN L322 ript$VariableManager]: TermVariabe setThreadThread4of5ForFork0_~param.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 13:22:05,011 WARN L322 ript$VariableManager]: TermVariabe setThreadThread4of5ForFork0_~param.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 13:22:05,011 WARN L322 ript$VariableManager]: TermVariabe |setThreadThread4of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 13:22:05,011 WARN L322 ript$VariableManager]: TermVariabe |setThreadThread4of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 13:22:05,011 WARN L322 ript$VariableManager]: TermVariabe |setThreadThread4of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 13:22:05,011 WARN L322 ript$VariableManager]: TermVariabe |setThreadThread4of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 13:22:05,011 WARN L322 ript$VariableManager]: TermVariabe |setThreadThread2of5ForFork0_#in~param.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 13:22:05,011 WARN L322 ript$VariableManager]: TermVariabe |setThreadThread2of5ForFork0_#in~param.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 13:22:05,011 WARN L322 ript$VariableManager]: TermVariabe setThreadThread2of5ForFork0_~param.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 13:22:05,011 WARN L322 ript$VariableManager]: TermVariabe setThreadThread2of5ForFork0_~param.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 13:22:05,011 WARN L322 ript$VariableManager]: TermVariabe |setThreadThread2of5ForFork0_#in~param.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 13:22:05,012 WARN L322 ript$VariableManager]: TermVariabe |setThreadThread2of5ForFork0_#in~param.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 13:22:05,012 WARN L322 ript$VariableManager]: TermVariabe setThreadThread2of5ForFork0_~param.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 13:22:05,012 WARN L322 ript$VariableManager]: TermVariabe setThreadThread2of5ForFork0_~param.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 13:22:05,012 WARN L322 ript$VariableManager]: TermVariabe |setThreadThread2of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 13:22:05,012 WARN L322 ript$VariableManager]: TermVariabe |setThreadThread2of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 13:22:05,012 WARN L322 ript$VariableManager]: TermVariabe |setThreadThread2of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 13:22:05,012 WARN L322 ript$VariableManager]: TermVariabe |setThreadThread2of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 13:22:05,012 WARN L322 ript$VariableManager]: TermVariabe |checkThreadThread3of5ForFork1_#in~param.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 13:22:05,012 WARN L322 ript$VariableManager]: TermVariabe |checkThreadThread3of5ForFork1_#in~param.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 13:22:05,012 WARN L322 ript$VariableManager]: TermVariabe checkThreadThread3of5ForFork1_~param.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 13:22:05,012 WARN L322 ript$VariableManager]: TermVariabe checkThreadThread3of5ForFork1_~param.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 13:22:05,012 WARN L322 ript$VariableManager]: TermVariabe |checkThreadThread3of5ForFork1_#in~param.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 13:22:05,012 WARN L322 ript$VariableManager]: TermVariabe |checkThreadThread3of5ForFork1_#in~param.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 13:22:05,012 WARN L322 ript$VariableManager]: TermVariabe checkThreadThread3of5ForFork1_~param.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 13:22:05,012 WARN L322 ript$VariableManager]: TermVariabe checkThreadThread3of5ForFork1_~param.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 13:22:05,012 WARN L322 ript$VariableManager]: TermVariabe |checkThreadThread3of5ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 13:22:05,012 WARN L322 ript$VariableManager]: TermVariabe |checkThreadThread3of5ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 13:22:05,012 WARN L322 ript$VariableManager]: TermVariabe |checkThreadThread3of5ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 13:22:05,012 WARN L322 ript$VariableManager]: TermVariabe |checkThreadThread3of5ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 13:22:05,013 WARN L322 ript$VariableManager]: TermVariabe |checkThreadThread4of5ForFork1_#in~param.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 13:22:05,013 WARN L322 ript$VariableManager]: TermVariabe |checkThreadThread4of5ForFork1_#in~param.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 13:22:05,013 WARN L322 ript$VariableManager]: TermVariabe checkThreadThread4of5ForFork1_~param.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 13:22:05,013 WARN L322 ript$VariableManager]: TermVariabe checkThreadThread4of5ForFork1_~param.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 13:22:05,013 WARN L322 ript$VariableManager]: TermVariabe |checkThreadThread4of5ForFork1_#in~param.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 13:22:05,013 WARN L322 ript$VariableManager]: TermVariabe |checkThreadThread4of5ForFork1_#in~param.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 13:22:05,013 WARN L322 ript$VariableManager]: TermVariabe checkThreadThread4of5ForFork1_~param.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 13:22:05,013 WARN L322 ript$VariableManager]: TermVariabe checkThreadThread4of5ForFork1_~param.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 13:22:05,013 WARN L322 ript$VariableManager]: TermVariabe |checkThreadThread4of5ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 13:22:05,013 WARN L322 ript$VariableManager]: TermVariabe |checkThreadThread4of5ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 13:22:05,013 WARN L322 ript$VariableManager]: TermVariabe |checkThreadThread4of5ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 13:22:05,013 WARN L322 ript$VariableManager]: TermVariabe |checkThreadThread4of5ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 13:22:05,013 WARN L322 ript$VariableManager]: TermVariabe |checkThreadThread1of5ForFork1_#in~param.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 13:22:05,013 WARN L322 ript$VariableManager]: TermVariabe |checkThreadThread1of5ForFork1_#in~param.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 13:22:05,013 WARN L322 ript$VariableManager]: TermVariabe checkThreadThread1of5ForFork1_~param.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 13:22:05,013 WARN L322 ript$VariableManager]: TermVariabe checkThreadThread1of5ForFork1_~param.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 13:22:05,013 WARN L322 ript$VariableManager]: TermVariabe |checkThreadThread1of5ForFork1_#in~param.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 13:22:05,013 WARN L322 ript$VariableManager]: TermVariabe |checkThreadThread1of5ForFork1_#in~param.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 13:22:05,013 WARN L322 ript$VariableManager]: TermVariabe checkThreadThread1of5ForFork1_~param.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 13:22:05,013 WARN L322 ript$VariableManager]: TermVariabe checkThreadThread1of5ForFork1_~param.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 13:22:05,014 WARN L322 ript$VariableManager]: TermVariabe |checkThreadThread1of5ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 13:22:05,014 WARN L322 ript$VariableManager]: TermVariabe |checkThreadThread1of5ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 13:22:05,014 WARN L322 ript$VariableManager]: TermVariabe |checkThreadThread1of5ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 13:22:05,014 WARN L322 ript$VariableManager]: TermVariabe |checkThreadThread1of5ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 13:22:05,014 WARN L322 ript$VariableManager]: TermVariabe |checkThreadThread2of5ForFork1_#in~param.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 13:22:05,014 WARN L322 ript$VariableManager]: TermVariabe |checkThreadThread2of5ForFork1_#in~param.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 13:22:05,014 WARN L322 ript$VariableManager]: TermVariabe checkThreadThread2of5ForFork1_~param.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 13:22:05,014 WARN L322 ript$VariableManager]: TermVariabe checkThreadThread2of5ForFork1_~param.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 13:22:05,014 WARN L322 ript$VariableManager]: TermVariabe |checkThreadThread2of5ForFork1_#in~param.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 13:22:05,014 WARN L322 ript$VariableManager]: TermVariabe |checkThreadThread2of5ForFork1_#in~param.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 13:22:05,014 WARN L322 ript$VariableManager]: TermVariabe checkThreadThread2of5ForFork1_~param.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 13:22:05,014 WARN L322 ript$VariableManager]: TermVariabe checkThreadThread2of5ForFork1_~param.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 13:22:05,014 WARN L322 ript$VariableManager]: TermVariabe |checkThreadThread2of5ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 13:22:05,014 WARN L322 ript$VariableManager]: TermVariabe |checkThreadThread2of5ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 13:22:05,014 WARN L322 ript$VariableManager]: TermVariabe |checkThreadThread2of5ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 13:22:05,014 WARN L322 ript$VariableManager]: TermVariabe |checkThreadThread2of5ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 13:22:05,014 WARN L322 ript$VariableManager]: TermVariabe |checkThreadThread5of5ForFork1_#in~param.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 13:22:05,014 WARN L322 ript$VariableManager]: TermVariabe |checkThreadThread5of5ForFork1_#in~param.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 13:22:05,014 WARN L322 ript$VariableManager]: TermVariabe checkThreadThread5of5ForFork1_~param.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 13:22:05,014 WARN L322 ript$VariableManager]: TermVariabe checkThreadThread5of5ForFork1_~param.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 13:22:05,014 WARN L322 ript$VariableManager]: TermVariabe |checkThreadThread5of5ForFork1_#in~param.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 13:22:05,015 WARN L322 ript$VariableManager]: TermVariabe |checkThreadThread5of5ForFork1_#in~param.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 13:22:05,015 WARN L322 ript$VariableManager]: TermVariabe checkThreadThread5of5ForFork1_~param.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 13:22:05,015 WARN L322 ript$VariableManager]: TermVariabe checkThreadThread5of5ForFork1_~param.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 13:22:05,015 WARN L322 ript$VariableManager]: TermVariabe |checkThreadThread5of5ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 13:22:05,015 WARN L322 ript$VariableManager]: TermVariabe |checkThreadThread5of5ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 13:22:05,015 WARN L322 ript$VariableManager]: TermVariabe |checkThreadThread5of5ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 13:22:05,015 WARN L322 ript$VariableManager]: TermVariabe |checkThreadThread5of5ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 13:22:05,015 WARN L322 ript$VariableManager]: TermVariabe |setThreadThread1of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 13:22:05,015 WARN L322 ript$VariableManager]: TermVariabe setThreadThread1of5ForFork0_~param.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 13:22:05,015 WARN L322 ript$VariableManager]: TermVariabe setThreadThread1of5ForFork0_~param.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 13:22:05,015 WARN L322 ript$VariableManager]: TermVariabe |setThreadThread1of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 13:22:05,015 WARN L322 ript$VariableManager]: TermVariabe setThreadThread2of5ForFork0_~param.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 13:22:05,015 WARN L322 ript$VariableManager]: TermVariabe |setThreadThread2of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 13:22:05,016 WARN L322 ript$VariableManager]: TermVariabe setThreadThread2of5ForFork0_~param.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 13:22:05,016 WARN L322 ript$VariableManager]: TermVariabe |setThreadThread2of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 13:22:05,016 WARN L322 ript$VariableManager]: TermVariabe setThreadThread3of5ForFork0_~param.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 13:22:05,016 WARN L322 ript$VariableManager]: TermVariabe |setThreadThread3of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 13:22:05,016 WARN L322 ript$VariableManager]: TermVariabe setThreadThread3of5ForFork0_~param.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 13:22:05,016 WARN L322 ript$VariableManager]: TermVariabe |setThreadThread3of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 13:22:05,016 WARN L322 ript$VariableManager]: TermVariabe setThreadThread4of5ForFork0_~param.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 13:22:05,016 WARN L322 ript$VariableManager]: TermVariabe setThreadThread4of5ForFork0_~param.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 13:22:05,016 WARN L322 ript$VariableManager]: TermVariabe |setThreadThread4of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 13:22:05,016 WARN L322 ript$VariableManager]: TermVariabe |setThreadThread4of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 13:22:05,017 WARN L322 ript$VariableManager]: TermVariabe |setThreadThread5of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 13:22:05,017 WARN L322 ript$VariableManager]: TermVariabe setThreadThread5of5ForFork0_~param.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 13:22:05,017 WARN L322 ript$VariableManager]: TermVariabe setThreadThread5of5ForFork0_~param.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 13:22:05,017 WARN L322 ript$VariableManager]: TermVariabe |setThreadThread5of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 13:22:05,017 WARN L322 ript$VariableManager]: TermVariabe checkThreadThread1of5ForFork1_~param.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 13:22:05,017 WARN L322 ript$VariableManager]: TermVariabe |checkThreadThread1of5ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 13:22:05,017 WARN L322 ript$VariableManager]: TermVariabe checkThreadThread1of5ForFork1_~param.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 13:22:05,017 WARN L322 ript$VariableManager]: TermVariabe |checkThreadThread1of5ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 13:22:05,017 WARN L322 ript$VariableManager]: TermVariabe checkThreadThread2of5ForFork1_~param.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 13:22:05,017 WARN L322 ript$VariableManager]: TermVariabe |checkThreadThread2of5ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 13:22:05,017 WARN L322 ript$VariableManager]: TermVariabe checkThreadThread2of5ForFork1_~param.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 13:22:05,017 WARN L322 ript$VariableManager]: TermVariabe |checkThreadThread2of5ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 13:22:05,017 WARN L322 ript$VariableManager]: TermVariabe |checkThreadThread3of5ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 13:22:05,018 WARN L322 ript$VariableManager]: TermVariabe checkThreadThread3of5ForFork1_~param.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 13:22:05,018 WARN L322 ript$VariableManager]: TermVariabe checkThreadThread3of5ForFork1_~param.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 13:22:05,018 WARN L322 ript$VariableManager]: TermVariabe |checkThreadThread3of5ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 13:22:05,018 WARN L322 ript$VariableManager]: TermVariabe |checkThreadThread4of5ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 13:22:05,018 WARN L322 ript$VariableManager]: TermVariabe checkThreadThread4of5ForFork1_~param.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 13:22:05,018 WARN L322 ript$VariableManager]: TermVariabe checkThreadThread4of5ForFork1_~param.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 13:22:05,018 WARN L322 ript$VariableManager]: TermVariabe |checkThreadThread4of5ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 13:22:05,018 WARN L322 ript$VariableManager]: TermVariabe |checkThreadThread5of5ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 13:22:05,018 WARN L322 ript$VariableManager]: TermVariabe checkThreadThread5of5ForFork1_~param.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 13:22:05,018 WARN L322 ript$VariableManager]: TermVariabe |checkThreadThread5of5ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 13:22:05,018 WARN L322 ript$VariableManager]: TermVariabe checkThreadThread5of5ForFork1_~param.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 13:22:05,021 INFO L148 ThreadInstanceAdder]: Constructed 20 joinOtherThreadTransitions. [2022-02-09 13:22:05,022 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-02-09 13:22:05,022 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-09 13:22:05,023 INFO L229 MonitoredProcess]: Starting monitored process 24 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2022-02-09 13:22:05,030 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == checkThreadThread3of5ForFork1 ======== [2022-02-09 13:22:05,031 INFO L339 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, mLazyFiniteAutomaton=true, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2022-02-09 13:22:05,031 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-02-09 13:22:05,035 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (24)] Waiting until timeout for monitored process [2022-02-09 13:22:05,132 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting checkThreadErr0ASSERT_VIOLATIONERROR_FUNCTION === [checkThreadErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-09 13:22:05,132 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 13:22:05,132 INFO L85 PathProgramCache]: Analyzing trace with hash 1235245373, now seen corresponding path program 1 times [2022-02-09 13:22:05,132 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 13:22:05,132 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [234379561] [2022-02-09 13:22:05,133 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 13:22:05,133 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 13:22:05,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 13:22:05,141 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-02-09 13:22:05,142 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 13:22:05,142 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [234379561] [2022-02-09 13:22:05,142 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [234379561] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 13:22:05,142 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 13:22:05,142 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-02-09 13:22:05,142 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [447128245] [2022-02-09 13:22:05,142 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 13:22:05,142 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-02-09 13:22:05,143 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 13:22:05,143 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-02-09 13:22:05,143 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-02-09 13:22:05,143 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-09 13:22:05,143 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-09 13:22:05,143 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 23.5) internal successors, (47), 2 states have internal predecessors, (47), 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) [2022-02-09 13:22:05,143 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-09 13:22:05,145 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-09 13:22:05,146 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2022-02-09 13:22:05,146 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting checkThreadErr0ASSERT_VIOLATIONERROR_FUNCTION === [checkThreadErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-09 13:22:05,146 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 13:22:05,146 INFO L85 PathProgramCache]: Analyzing trace with hash -1426917924, now seen corresponding path program 1 times [2022-02-09 13:22:05,146 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 13:22:05,146 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [577709083] [2022-02-09 13:22:05,146 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 13:22:05,146 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 13:22:05,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 13:22:05,159 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-02-09 13:22:05,159 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 13:22:05,159 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [577709083] [2022-02-09 13:22:05,159 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [577709083] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 13:22:05,159 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 13:22:05,160 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-02-09 13:22:05,160 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [890497660] [2022-02-09 13:22:05,160 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 13:22:05,160 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-02-09 13:22:05,160 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 13:22:05,161 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-02-09 13:22:05,161 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-02-09 13:22:05,161 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-09 13:22:05,161 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-09 13:22:05,161 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 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) [2022-02-09 13:22:05,161 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-09 13:22:05,161 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-09 13:22:05,223 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-09 13:22:05,223 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-09 13:22:05,224 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2022-02-09 13:22:05,224 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting checkThreadErr0ASSERT_VIOLATIONERROR_FUNCTION === [checkThreadErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-09 13:22:05,224 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 13:22:05,224 INFO L85 PathProgramCache]: Analyzing trace with hash 1018841525, now seen corresponding path program 1 times [2022-02-09 13:22:05,224 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 13:22:05,224 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1709973199] [2022-02-09 13:22:05,224 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 13:22:05,224 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 13:22:05,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 13:22:05,246 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-02-09 13:22:05,246 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 13:22:05,246 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1709973199] [2022-02-09 13:22:05,246 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1709973199] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-09 13:22:05,247 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1275677839] [2022-02-09 13:22:05,247 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 13:22:05,247 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-09 13:22:05,247 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-09 13:22:05,264 INFO L229 MonitoredProcess]: Starting monitored process 25 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-09 13:22:05,265 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Waiting until timeout for monitored process [2022-02-09 13:22:05,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 13:22:05,360 INFO L263 TraceCheckSpWp]: Trace formula consists of 196 conjuncts, 4 conjunts are in the unsatisfiable core [2022-02-09 13:22:05,360 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-09 13:22:05,434 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-02-09 13:22:05,434 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-09 13:22:05,508 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-02-09 13:22:05,509 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1275677839] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-09 13:22:05,509 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-09 13:22:05,509 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2022-02-09 13:22:05,509 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [173771286] [2022-02-09 13:22:05,509 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-09 13:22:05,509 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-02-09 13:22:05,509 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 13:22:05,510 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-02-09 13:22:05,510 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2022-02-09 13:22:05,510 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-09 13:22:05,510 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-09 13:22:05,510 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 8.4) internal successors, (84), 10 states have internal predecessors, (84), 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) [2022-02-09 13:22:05,510 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-09 13:22:05,511 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-02-09 13:22:05,511 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-09 13:22:05,616 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-09 13:22:05,617 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-09 13:22:05,617 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-02-09 13:22:05,633 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Ended with exit code 0 [2022-02-09 13:22:05,826 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable37 [2022-02-09 13:22:05,827 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting checkThreadErr0ASSERT_VIOLATIONERROR_FUNCTION === [checkThreadErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-09 13:22:05,827 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 13:22:05,827 INFO L85 PathProgramCache]: Analyzing trace with hash -2033703412, now seen corresponding path program 1 times [2022-02-09 13:22:05,827 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 13:22:05,827 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [423293392] [2022-02-09 13:22:05,827 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 13:22:05,828 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 13:22:05,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 13:22:05,864 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 15 proven. 1 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2022-02-09 13:22:05,864 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 13:22:05,864 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [423293392] [2022-02-09 13:22:05,864 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [423293392] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-09 13:22:05,864 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1616698687] [2022-02-09 13:22:05,865 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 13:22:05,865 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-09 13:22:05,865 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-09 13:22:05,866 INFO L229 MonitoredProcess]: Starting monitored process 26 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-09 13:22:05,872 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Waiting until timeout for monitored process [2022-02-09 13:22:05,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 13:22:05,976 INFO L263 TraceCheckSpWp]: Trace formula consists of 266 conjuncts, 8 conjunts are in the unsatisfiable core [2022-02-09 13:22:05,977 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-09 13:22:06,181 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 0 proven. 33 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-02-09 13:22:06,181 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-09 13:22:06,377 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 0 proven. 33 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-02-09 13:22:06,377 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1616698687] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-09 13:22:06,377 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-09 13:22:06,378 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 9, 9] total 19 [2022-02-09 13:22:06,378 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [53317950] [2022-02-09 13:22:06,378 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-09 13:22:06,378 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-02-09 13:22:06,378 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 13:22:06,378 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-02-09 13:22:06,378 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=86, Invalid=256, Unknown=0, NotChecked=0, Total=342 [2022-02-09 13:22:06,379 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-09 13:22:06,379 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-09 13:22:06,379 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 9.210526315789474) internal successors, (175), 19 states have internal predecessors, (175), 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) [2022-02-09 13:22:06,379 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-09 13:22:06,379 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-02-09 13:22:06,379 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2022-02-09 13:22:06,379 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-09 13:22:18,637 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-09 13:22:18,638 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-09 13:22:18,638 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-02-09 13:22:18,639 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-02-09 13:22:18,639 INFO L764 garLoopResultBuilder]: Registering result SAFE for location checkThreadErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-02-09 13:22:18,658 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Forceful destruction successful, exit code 0 [2022-02-09 13:22:18,840 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable38 [2022-02-09 13:22:18,841 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2022-02-09 13:22:18,841 INFO L309 ceAbstractionStarter]: Result for error location checkThreadThread3of5ForFork1 was SAFE (1/6) [2022-02-09 13:22:18,841 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-02-09 13:22:18,841 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-09 13:22:18,842 INFO L229 MonitoredProcess]: Starting monitored process 27 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2022-02-09 13:22:18,843 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (27)] Waiting until timeout for monitored process [2022-02-09 13:22:18,845 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == checkThreadThread4of5ForFork1 ======== [2022-02-09 13:22:18,845 INFO L339 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, mLazyFiniteAutomaton=true, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2022-02-09 13:22:18,845 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-02-09 13:22:18,933 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting checkThreadErr0ASSERT_VIOLATIONERROR_FUNCTION === [checkThreadErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-09 13:22:18,933 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 13:22:18,933 INFO L85 PathProgramCache]: Analyzing trace with hash -240992089, now seen corresponding path program 1 times [2022-02-09 13:22:18,933 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 13:22:18,934 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [464660438] [2022-02-09 13:22:18,934 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 13:22:18,934 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 13:22:18,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 13:22:18,948 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2022-02-09 13:22:18,948 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 13:22:18,948 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [464660438] [2022-02-09 13:22:18,948 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [464660438] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 13:22:18,948 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 13:22:18,948 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-02-09 13:22:18,948 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [18060453] [2022-02-09 13:22:18,948 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 13:22:18,949 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-02-09 13:22:18,949 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 13:22:18,949 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-02-09 13:22:18,949 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-02-09 13:22:18,949 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-09 13:22:18,949 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-09 13:22:18,950 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 26.0) internal successors, (52), 2 states have internal predecessors, (52), 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) [2022-02-09 13:22:18,950 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-09 13:22:18,952 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-09 13:22:18,953 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2022-02-09 13:22:18,953 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting checkThreadErr0ASSERT_VIOLATIONERROR_FUNCTION === [checkThreadErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-09 13:22:18,953 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 13:22:18,953 INFO L85 PathProgramCache]: Analyzing trace with hash 528177926, now seen corresponding path program 1 times [2022-02-09 13:22:18,953 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 13:22:18,953 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [966505347] [2022-02-09 13:22:18,953 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 13:22:18,953 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 13:22:18,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 13:22:18,978 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2022-02-09 13:22:18,978 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 13:22:18,979 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [966505347] [2022-02-09 13:22:18,979 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [966505347] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 13:22:18,979 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 13:22:18,979 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-02-09 13:22:18,979 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [488286111] [2022-02-09 13:22:18,979 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 13:22:18,979 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-02-09 13:22:18,979 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 13:22:18,980 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-02-09 13:22:18,980 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-02-09 13:22:18,980 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-09 13:22:18,980 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-09 13:22:18,980 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 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) [2022-02-09 13:22:18,980 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-09 13:22:18,980 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-09 13:22:19,024 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-09 13:22:19,024 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-09 13:22:19,024 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2022-02-09 13:22:19,024 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting checkThreadErr0ASSERT_VIOLATIONERROR_FUNCTION === [checkThreadErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-09 13:22:19,025 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 13:22:19,025 INFO L85 PathProgramCache]: Analyzing trace with hash -680362209, now seen corresponding path program 1 times [2022-02-09 13:22:19,025 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 13:22:19,025 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [496280405] [2022-02-09 13:22:19,025 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 13:22:19,025 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 13:22:19,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 13:22:19,047 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2022-02-09 13:22:19,048 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 13:22:19,048 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [496280405] [2022-02-09 13:22:19,048 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [496280405] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-09 13:22:19,048 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [74409927] [2022-02-09 13:22:19,048 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 13:22:19,048 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-09 13:22:19,048 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-09 13:22:19,049 INFO L229 MonitoredProcess]: Starting monitored process 28 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-09 13:22:19,088 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Waiting until timeout for monitored process [2022-02-09 13:22:19,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 13:22:19,163 INFO L263 TraceCheckSpWp]: Trace formula consists of 228 conjuncts, 4 conjunts are in the unsatisfiable core [2022-02-09 13:22:19,164 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-09 13:22:19,251 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2022-02-09 13:22:19,252 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-09 13:22:19,359 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2022-02-09 13:22:19,359 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [74409927] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-09 13:22:19,359 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-09 13:22:19,359 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2022-02-09 13:22:19,360 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [309114858] [2022-02-09 13:22:19,360 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-09 13:22:19,361 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-02-09 13:22:19,361 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 13:22:19,361 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-02-09 13:22:19,361 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2022-02-09 13:22:19,361 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-09 13:22:19,361 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-09 13:22:19,362 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 8.9) internal successors, (89), 10 states have internal predecessors, (89), 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) [2022-02-09 13:22:19,362 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-09 13:22:19,362 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-02-09 13:22:19,362 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-09 13:22:19,466 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-09 13:22:19,466 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-09 13:22:19,466 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-02-09 13:22:19,482 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Ended with exit code 0 [2022-02-09 13:22:19,666 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41,28 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-09 13:22:19,666 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting checkThreadErr0ASSERT_VIOLATIONERROR_FUNCTION === [checkThreadErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-09 13:22:19,667 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 13:22:19,667 INFO L85 PathProgramCache]: Analyzing trace with hash 530609974, now seen corresponding path program 1 times [2022-02-09 13:22:19,667 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 13:22:19,667 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1676871445] [2022-02-09 13:22:19,667 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 13:22:19,667 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 13:22:19,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 13:22:19,707 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 26 proven. 1 refuted. 0 times theorem prover too weak. 51 trivial. 0 not checked. [2022-02-09 13:22:19,707 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 13:22:19,707 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1676871445] [2022-02-09 13:22:19,707 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1676871445] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-09 13:22:19,708 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [572854405] [2022-02-09 13:22:19,708 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 13:22:19,708 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-09 13:22:19,708 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-09 13:22:19,709 INFO L229 MonitoredProcess]: Starting monitored process 29 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-09 13:22:19,710 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Waiting until timeout for monitored process [2022-02-09 13:22:19,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 13:22:19,827 INFO L263 TraceCheckSpWp]: Trace formula consists of 298 conjuncts, 8 conjunts are in the unsatisfiable core [2022-02-09 13:22:19,828 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-09 13:22:19,998 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 0 proven. 33 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2022-02-09 13:22:19,998 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-09 13:22:20,206 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 0 proven. 33 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2022-02-09 13:22:20,207 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [572854405] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-09 13:22:20,207 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-09 13:22:20,207 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 9, 9] total 19 [2022-02-09 13:22:20,207 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1587966761] [2022-02-09 13:22:20,207 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-09 13:22:20,207 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-02-09 13:22:20,207 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 13:22:20,208 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-02-09 13:22:20,208 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=86, Invalid=256, Unknown=0, NotChecked=0, Total=342 [2022-02-09 13:22:20,208 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-09 13:22:20,208 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-09 13:22:20,208 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 9.473684210526315) internal successors, (180), 19 states have internal predecessors, (180), 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) [2022-02-09 13:22:20,208 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-09 13:22:20,208 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-02-09 13:22:20,208 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2022-02-09 13:22:20,208 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-09 13:22:32,330 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-09 13:22:32,330 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-09 13:22:32,330 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-02-09 13:22:32,331 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-02-09 13:22:32,331 INFO L764 garLoopResultBuilder]: Registering result SAFE for location checkThreadErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-02-09 13:22:32,350 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Forceful destruction successful, exit code 0 [2022-02-09 13:22:32,541 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42,29 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-09 13:22:32,542 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2022-02-09 13:22:32,543 INFO L309 ceAbstractionStarter]: Result for error location checkThreadThread4of5ForFork1 was SAFE (2/6) [2022-02-09 13:22:32,543 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-02-09 13:22:32,543 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-09 13:22:32,544 INFO L229 MonitoredProcess]: Starting monitored process 30 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2022-02-09 13:22:32,545 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (30)] Waiting until timeout for monitored process [2022-02-09 13:22:32,550 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == checkThreadThread1of5ForFork1 ======== [2022-02-09 13:22:32,550 INFO L339 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, mLazyFiniteAutomaton=true, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2022-02-09 13:22:32,550 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-02-09 13:22:32,688 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting checkThreadErr0ASSERT_VIOLATIONERROR_FUNCTION === [checkThreadErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-09 13:22:32,688 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 13:22:32,689 INFO L85 PathProgramCache]: Analyzing trace with hash 1279268902, now seen corresponding path program 1 times [2022-02-09 13:22:32,689 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 13:22:32,689 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [626877614] [2022-02-09 13:22:32,689 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 13:22:32,689 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 13:22:32,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 13:22:32,701 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 13:22:32,702 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 13:22:32,702 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [626877614] [2022-02-09 13:22:32,702 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [626877614] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 13:22:32,702 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 13:22:32,702 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-02-09 13:22:32,702 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [219295390] [2022-02-09 13:22:32,702 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 13:22:32,702 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-02-09 13:22:32,702 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 13:22:32,702 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-02-09 13:22:32,702 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-02-09 13:22:32,702 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-09 13:22:32,702 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-09 13:22:32,703 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 16.0) internal successors, (32), 2 states have internal predecessors, (32), 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) [2022-02-09 13:22:32,703 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-09 13:22:32,704 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-09 13:22:32,704 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2022-02-09 13:22:32,704 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting checkThreadErr0ASSERT_VIOLATIONERROR_FUNCTION === [checkThreadErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-09 13:22:32,704 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 13:22:32,704 INFO L85 PathProgramCache]: Analyzing trace with hash 1082755397, now seen corresponding path program 1 times [2022-02-09 13:22:32,705 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 13:22:32,705 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1786881698] [2022-02-09 13:22:32,705 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 13:22:32,705 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 13:22:32,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 13:22:32,716 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 13:22:32,716 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 13:22:32,716 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1786881698] [2022-02-09 13:22:32,716 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1786881698] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 13:22:32,716 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 13:22:32,716 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-02-09 13:22:32,716 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1793949090] [2022-02-09 13:22:32,716 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 13:22:32,716 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-02-09 13:22:32,716 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 13:22:32,718 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-02-09 13:22:32,718 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-02-09 13:22:32,718 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-09 13:22:32,718 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-09 13:22:32,718 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 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) [2022-02-09 13:22:32,718 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-09 13:22:32,718 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-09 13:22:32,834 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-09 13:22:32,835 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-09 13:22:32,835 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2022-02-09 13:22:32,835 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting checkThreadErr0ASSERT_VIOLATIONERROR_FUNCTION === [checkThreadErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-09 13:22:32,835 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 13:22:32,835 INFO L85 PathProgramCache]: Analyzing trace with hash 1387064478, now seen corresponding path program 1 times [2022-02-09 13:22:32,835 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 13:22:32,835 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1329573621] [2022-02-09 13:22:32,836 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 13:22:32,836 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 13:22:32,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 13:22:32,854 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 13:22:32,854 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 13:22:32,854 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1329573621] [2022-02-09 13:22:32,854 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1329573621] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-09 13:22:32,855 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [177922509] [2022-02-09 13:22:32,855 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 13:22:32,855 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-09 13:22:32,855 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-09 13:22:32,866 INFO L229 MonitoredProcess]: Starting monitored process 31 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-09 13:22:32,892 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Waiting until timeout for monitored process [2022-02-09 13:22:32,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 13:22:32,958 INFO L263 TraceCheckSpWp]: Trace formula consists of 132 conjuncts, 4 conjunts are in the unsatisfiable core [2022-02-09 13:22:32,959 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-09 13:22:33,008 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 13:22:33,009 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-09 13:22:33,077 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 13:22:33,078 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [177922509] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-09 13:22:33,078 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-09 13:22:33,078 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2022-02-09 13:22:33,078 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1641747994] [2022-02-09 13:22:33,078 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-09 13:22:33,078 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-02-09 13:22:33,078 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 13:22:33,079 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-02-09 13:22:33,079 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2022-02-09 13:22:33,079 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-09 13:22:33,079 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-09 13:22:33,079 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 6.9) internal successors, (69), 10 states have internal predecessors, (69), 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) [2022-02-09 13:22:33,079 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-09 13:22:33,079 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-02-09 13:22:33,079 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-09 13:22:33,273 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-09 13:22:33,273 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-09 13:22:33,274 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-02-09 13:22:33,296 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Forceful destruction successful, exit code 0 [2022-02-09 13:22:33,490 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 31 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable45 [2022-02-09 13:22:33,490 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting checkThreadErr0ASSERT_VIOLATIONERROR_FUNCTION === [checkThreadErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-09 13:22:33,490 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 13:22:33,490 INFO L85 PathProgramCache]: Analyzing trace with hash -942153355, now seen corresponding path program 1 times [2022-02-09 13:22:33,490 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 13:22:33,491 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [932250840] [2022-02-09 13:22:33,491 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 13:22:33,491 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 13:22:33,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 13:22:33,519 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2022-02-09 13:22:33,520 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 13:22:33,520 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [932250840] [2022-02-09 13:22:33,520 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [932250840] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 13:22:33,520 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 13:22:33,520 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-02-09 13:22:33,520 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1139483180] [2022-02-09 13:22:33,520 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 13:22:33,520 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-02-09 13:22:33,520 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 13:22:33,521 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-02-09 13:22:33,521 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-02-09 13:22:33,521 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-09 13:22:33,521 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-09 13:22:33,521 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.75) internal successors, (59), 4 states have internal predecessors, (59), 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) [2022-02-09 13:22:33,521 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-09 13:22:33,521 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-02-09 13:22:33,521 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2022-02-09 13:22:33,521 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states.