/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-MCRwithoutDepranks.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-divine/condvar_spurious_wakeup.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.mcr-reduction-44898dd [2022-02-16 16:49:43,585 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-02-16 16:49:43,587 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-02-16 16:49:43,649 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-02-16 16:49:43,681 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-02-16 16:49:43,681 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-02-16 16:49:43,681 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-02-16 16:49:43,682 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-MCRwithoutDepranks.epf [2022-02-16 16:49:43,696 INFO L113 SettingsManager]: Loading preferences was successful [2022-02-16 16:49:43,696 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-02-16 16:49:43,696 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-02-16 16:49:43,697 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-02-16 16:49:43,697 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-02-16 16:49:43,697 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-02-16 16:49:43,698 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-02-16 16:49:43,698 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-02-16 16:49:43,698 INFO L138 SettingsManager]: * Use SBE=true [2022-02-16 16:49:43,698 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-02-16 16:49:43,698 INFO L138 SettingsManager]: * sizeof long=4 [2022-02-16 16:49:43,698 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-02-16 16:49:43,698 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-02-16 16:49:43,698 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-02-16 16:49:43,698 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-02-16 16:49:43,699 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-02-16 16:49:43,699 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-02-16 16:49:43,699 INFO L138 SettingsManager]: * sizeof long double=12 [2022-02-16 16:49:43,699 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-02-16 16:49:43,699 INFO L138 SettingsManager]: * Use constant arrays=true [2022-02-16 16:49:43,699 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-02-16 16:49:43,699 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-02-16 16:49:43,699 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-02-16 16:49:43,699 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-02-16 16:49:43,699 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-02-16 16:49:43,699 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-16 16:49:43,700 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-02-16 16:49:43,700 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-02-16 16:49:43,700 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-02-16 16:49:43,700 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-02-16 16:49:43,700 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-02-16 16:49:43,700 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-02-16 16:49:43,700 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2022-02-16 16:49:43,700 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-02-16 16:49:43,700 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=MCR_WITHOUT_DEPRANKS [2022-02-16 16:49:43,701 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-02-16 16:49:43,948 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-02-16 16:49:43,966 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-02-16 16:49:43,969 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-02-16 16:49:43,970 INFO L271 PluginConnector]: Initializing CDTParser... [2022-02-16 16:49:43,971 INFO L275 PluginConnector]: CDTParser initialized [2022-02-16 16:49:43,971 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-divine/condvar_spurious_wakeup.i [2022-02-16 16:49:44,036 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/851472e88/92be251bb2bd4f0c9b75ef1920afbecc/FLAG7a66c5ea7 [2022-02-16 16:49:44,419 INFO L306 CDTParser]: Found 1 translation units. [2022-02-16 16:49:44,419 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-divine/condvar_spurious_wakeup.i [2022-02-16 16:49:44,428 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/851472e88/92be251bb2bd4f0c9b75ef1920afbecc/FLAG7a66c5ea7 [2022-02-16 16:49:44,820 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/851472e88/92be251bb2bd4f0c9b75ef1920afbecc [2022-02-16 16:49:44,822 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-02-16 16:49:44,823 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-02-16 16:49:44,824 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-02-16 16:49:44,824 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-02-16 16:49:44,826 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-02-16 16:49:44,826 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.02 04:49:44" (1/1) ... [2022-02-16 16:49:44,827 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4d460b7c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 04:49:44, skipping insertion in model container [2022-02-16 16:49:44,827 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.02 04:49:44" (1/1) ... [2022-02-16 16:49:44,831 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-02-16 16:49:44,870 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-02-16 16:49:45,015 WARN L610 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-02-16 16:49:45,147 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-divine/condvar_spurious_wakeup.i[30416,30429] [2022-02-16 16:49:45,156 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-16 16:49:45,165 INFO L203 MainTranslator]: Completed pre-run [2022-02-16 16:49:45,177 WARN L610 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-02-16 16:49:45,197 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-divine/condvar_spurious_wakeup.i[30416,30429] [2022-02-16 16:49:45,200 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-16 16:49:45,226 INFO L208 MainTranslator]: Completed translation [2022-02-16 16:49:45,227 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 04:49:45 WrapperNode [2022-02-16 16:49:45,227 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-02-16 16:49:45,228 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-02-16 16:49:45,228 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-02-16 16:49:45,228 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-02-16 16:49:45,233 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 04:49:45" (1/1) ... [2022-02-16 16:49:45,250 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 04:49:45" (1/1) ... [2022-02-16 16:49:45,268 INFO L137 Inliner]: procedures = 169, calls = 35, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 55 [2022-02-16 16:49:45,268 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-02-16 16:49:45,269 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-02-16 16:49:45,269 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-02-16 16:49:45,269 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-02-16 16:49:45,274 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 04:49:45" (1/1) ... [2022-02-16 16:49:45,274 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 04:49:45" (1/1) ... [2022-02-16 16:49:45,285 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 04:49:45" (1/1) ... [2022-02-16 16:49:45,285 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 04:49:45" (1/1) ... [2022-02-16 16:49:45,288 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 04:49:45" (1/1) ... [2022-02-16 16:49:45,290 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 04:49:45" (1/1) ... [2022-02-16 16:49:45,290 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 04:49:45" (1/1) ... [2022-02-16 16:49:45,299 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-02-16 16:49:45,299 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-02-16 16:49:45,300 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-02-16 16:49:45,300 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-02-16 16:49:45,306 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 04:49:45" (1/1) ... [2022-02-16 16:49:45,311 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-16 16:49:45,318 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-16 16:49:45,329 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) [2022-02-16 16:49:45,352 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 [2022-02-16 16:49:45,381 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-02-16 16:49:45,381 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-02-16 16:49:45,381 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-02-16 16:49:45,381 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-02-16 16:49:45,381 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-02-16 16:49:45,384 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-02-16 16:49:45,384 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-02-16 16:49:45,384 INFO L130 BoogieDeclarations]: Found specification of procedure thread [2022-02-16 16:49:45,384 INFO L138 BoogieDeclarations]: Found implementation of procedure thread [2022-02-16 16:49:45,384 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-02-16 16:49:45,384 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-02-16 16:49:45,386 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-02-16 16:49:45,466 INFO L234 CfgBuilder]: Building ICFG [2022-02-16 16:49:45,467 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-02-16 16:49:45,634 INFO L275 CfgBuilder]: Performing block encoding [2022-02-16 16:49:45,639 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-02-16 16:49:45,640 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-02-16 16:49:45,641 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.02 04:49:45 BoogieIcfgContainer [2022-02-16 16:49:45,641 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-02-16 16:49:45,642 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-02-16 16:49:45,642 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-02-16 16:49:45,648 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-02-16 16:49:45,648 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.02 04:49:44" (1/3) ... [2022-02-16 16:49:45,649 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@b247b75 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.02 04:49:45, skipping insertion in model container [2022-02-16 16:49:45,649 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 04:49:45" (2/3) ... [2022-02-16 16:49:45,649 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@b247b75 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.02 04:49:45, skipping insertion in model container [2022-02-16 16:49:45,649 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.02 04:49:45" (3/3) ... [2022-02-16 16:49:45,650 INFO L111 eAbstractionObserver]: Analyzing ICFG condvar_spurious_wakeup.i [2022-02-16 16:49:45,653 WARN L150 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-02-16 16:49:45,653 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-02-16 16:49:45,653 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-02-16 16:49:45,653 INFO L534 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-02-16 16:49:45,679 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 16:49:45,680 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 16:49:45,680 WARN L322 ript$VariableManager]: TermVariabe threadThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 16:49:45,680 WARN L322 ript$VariableManager]: TermVariabe threadThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 16:49:45,680 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 16:49:45,681 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 16:49:45,681 WARN L322 ript$VariableManager]: TermVariabe threadThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 16:49:45,681 WARN L322 ript$VariableManager]: TermVariabe threadThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 16:49:45,681 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 16:49:45,682 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 16:49:45,682 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 16:49:45,682 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 16:49:45,682 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 16:49:45,682 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 16:49:45,683 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 16:49:45,683 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 16:49:45,683 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 16:49:45,683 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 16:49:45,683 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 16:49:45,684 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 16:49:45,686 WARN L322 ript$VariableManager]: TermVariabe threadThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 16:49:45,686 WARN L322 ript$VariableManager]: TermVariabe threadThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 16:49:45,686 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 16:49:45,686 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 16:49:45,686 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 16:49:45,687 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 16:49:45,690 INFO L148 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2022-02-16 16:49:45,719 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-02-16 16:49:45,719 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-16 16:49:45,721 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) [2022-02-16 16:49:45,722 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 [2022-02-16 16:49:45,742 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-02-16 16:49:45,746 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=false, 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 [2022-02-16 16:49:45,746 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2022-02-16 16:49:45,753 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 75 places, 74 transitions, 156 flow [2022-02-16 16:49:45,774 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 132 states, 131 states have (on average 1.6870229007633588) internal successors, (221), 131 states have internal predecessors, (221), 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) [2022-02-16 16:49:45,830 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 62 transitions and produced 63 states. [2022-02-16 16:49:45,832 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting threadErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATION, threadErr0ASSERT_VIOLATIONERROR_FUNCTION, threadErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-16 16:49:45,840 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-16 16:49:45,840 INFO L85 PathProgramCache]: Analyzing trace with hash 1647222963, now seen corresponding path program 1 times [2022-02-16 16:49:45,846 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-16 16:49:45,847 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1780141251] [2022-02-16 16:49:45,847 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-16 16:49:45,847 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-16 16:49:45,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-16 16:49:45,976 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-16 16:49:45,977 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-16 16:49:45,977 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1780141251] [2022-02-16 16:49:45,978 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1780141251] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-16 16:49:45,978 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-16 16:49:45,978 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-02-16 16:49:45,979 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1867703989] [2022-02-16 16:49:45,980 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-16 16:49:45,982 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-02-16 16:49:45,982 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-16 16:49:45,996 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-02-16 16:49:45,997 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-02-16 16:49:45,998 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-16 16:49:45,999 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-16 16:49:45,999 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 27.5) internal successors, (55), 2 states have internal predecessors, (55), 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) [2022-02-16 16:49:45,999 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-16 16:49:46,026 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 62 transitions and produced 63 states. [2022-02-16 16:49:46,028 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-16 16:49:46,028 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-02-16 16:49:46,028 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting threadErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATION, threadErr0ASSERT_VIOLATIONERROR_FUNCTION, threadErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-16 16:49:46,031 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-16 16:49:46,031 INFO L85 PathProgramCache]: Analyzing trace with hash 1450709458, now seen corresponding path program 1 times [2022-02-16 16:49:46,031 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-16 16:49:46,031 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1156372604] [2022-02-16 16:49:46,032 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-16 16:49:46,032 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-16 16:49:46,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-16 16:49:46,137 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-16 16:49:46,137 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-16 16:49:46,137 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1156372604] [2022-02-16 16:49:46,137 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1156372604] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-16 16:49:46,138 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-16 16:49:46,138 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-02-16 16:49:46,138 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [780951689] [2022-02-16 16:49:46,138 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-16 16:49:46,139 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-02-16 16:49:46,139 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-16 16:49:46,140 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-02-16 16:49:46,140 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-02-16 16:49:46,140 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-16 16:49:46,140 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-16 16:49:46,140 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 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) [2022-02-16 16:49:46,140 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-16 16:49:46,140 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-16 16:49:46,203 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 74 transitions and produced 75 states. [2022-02-16 16:49:46,203 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-16 16:49:46,205 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-16 16:49:46,206 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-02-16 16:49:46,206 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting threadErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATION, threadErr0ASSERT_VIOLATIONERROR_FUNCTION, threadErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-16 16:49:46,206 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-16 16:49:46,206 INFO L85 PathProgramCache]: Analyzing trace with hash -2009823221, now seen corresponding path program 1 times [2022-02-16 16:49:46,207 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-16 16:49:46,207 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1912532310] [2022-02-16 16:49:46,207 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-16 16:49:46,207 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-16 16:49:46,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-16 16:49:46,310 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-16 16:49:46,311 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-16 16:49:46,311 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1912532310] [2022-02-16 16:49:46,312 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1912532310] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-16 16:49:46,312 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [467020087] [2022-02-16 16:49:46,312 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-16 16:49:46,312 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-16 16:49:46,312 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-16 16:49:46,316 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) [2022-02-16 16:49:46,321 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-02-16 16:49:46,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-16 16:49:46,383 INFO L263 TraceCheckSpWp]: Trace formula consists of 157 conjuncts, 4 conjunts are in the unsatisfiable core [2022-02-16 16:49:46,386 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-16 16:49:46,499 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-16 16:49:46,499 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-16 16:49:46,600 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-16 16:49:46,600 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [467020087] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-16 16:49:46,600 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-16 16:49:46,601 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2022-02-16 16:49:46,602 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1772444513] [2022-02-16 16:49:46,602 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-16 16:49:46,604 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-02-16 16:49:46,604 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-16 16:49:46,605 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-02-16 16:49:46,605 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2022-02-16 16:49:46,605 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-16 16:49:46,606 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-16 16:49:46,606 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 7.2) internal successors, (72), 10 states have internal predecessors, (72), 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) [2022-02-16 16:49:46,606 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-16 16:49:46,606 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-02-16 16:49:46,606 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-16 16:49:46,776 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 98 transitions and produced 97 states. [2022-02-16 16:49:46,776 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-16 16:49:46,776 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-16 16:49:46,777 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-02-16 16:49:46,806 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-02-16 16:49:46,996 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 [2022-02-16 16:49:46,996 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting threadErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATION, threadErr0ASSERT_VIOLATIONERROR_FUNCTION, threadErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-16 16:49:46,997 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-16 16:49:46,997 INFO L85 PathProgramCache]: Analyzing trace with hash -1859989397, now seen corresponding path program 2 times [2022-02-16 16:49:46,997 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-16 16:49:46,998 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1464339860] [2022-02-16 16:49:46,998 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-16 16:49:46,998 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-16 16:49:47,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-16 16:49:47,107 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-16 16:49:47,107 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-16 16:49:47,108 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1464339860] [2022-02-16 16:49:47,108 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1464339860] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-16 16:49:47,108 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2071521882] [2022-02-16 16:49:47,108 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-02-16 16:49:47,108 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-16 16:49:47,108 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-16 16:49:47,110 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-16 16:49:47,111 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-02-16 16:49:47,179 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-02-16 16:49:47,180 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-16 16:49:47,180 INFO L263 TraceCheckSpWp]: Trace formula consists of 173 conjuncts, 8 conjunts are in the unsatisfiable core [2022-02-16 16:49:47,184 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-16 16:49:47,332 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-16 16:49:47,333 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-16 16:49:47,487 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-16 16:49:47,488 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2071521882] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-16 16:49:47,488 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-16 16:49:47,488 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 18 [2022-02-16 16:49:47,488 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [89552904] [2022-02-16 16:49:47,488 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-16 16:49:47,489 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-02-16 16:49:47,489 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-16 16:49:47,490 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-02-16 16:49:47,491 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306 [2022-02-16 16:49:47,491 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-16 16:49:47,491 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-16 16:49:47,491 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 5.111111111111111) internal successors, (92), 18 states have internal predecessors, (92), 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) [2022-02-16 16:49:47,492 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-16 16:49:47,492 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-02-16 16:49:47,492 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-02-16 16:49:47,492 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-16 16:49:47,740 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 146 transitions and produced 138 states. [2022-02-16 16:49:47,741 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-16 16:49:47,741 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-16 16:49:47,741 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-02-16 16:49:47,741 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-02-16 16:49:47,774 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-02-16 16:49:47,974 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-16 16:49:47,974 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting threadErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATION, threadErr0ASSERT_VIOLATIONERROR_FUNCTION, threadErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-16 16:49:47,975 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-16 16:49:47,975 INFO L85 PathProgramCache]: Analyzing trace with hash -185566933, now seen corresponding path program 3 times [2022-02-16 16:49:47,975 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-16 16:49:47,975 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [723443683] [2022-02-16 16:49:47,975 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-16 16:49:47,976 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-16 16:49:47,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-16 16:49:48,116 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-16 16:49:48,117 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-16 16:49:48,117 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [723443683] [2022-02-16 16:49:48,117 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [723443683] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-16 16:49:48,117 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1009067773] [2022-02-16 16:49:48,117 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-02-16 16:49:48,117 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-16 16:49:48,118 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-16 16:49:48,119 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) [2022-02-16 16:49:48,120 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-02-16 16:49:48,176 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2022-02-16 16:49:48,177 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-16 16:49:48,177 INFO L263 TraceCheckSpWp]: Trace formula consists of 165 conjuncts, 7 conjunts are in the unsatisfiable core [2022-02-16 16:49:48,179 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-16 16:49:48,347 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 31 proven. 0 refuted. 0 times theorem prover too weak. 81 trivial. 0 not checked. [2022-02-16 16:49:48,347 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-02-16 16:49:48,347 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1009067773] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-16 16:49:48,348 INFO L191 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-02-16 16:49:48,348 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [17] total 22 [2022-02-16 16:49:48,348 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [826059239] [2022-02-16 16:49:48,348 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-16 16:49:48,348 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-02-16 16:49:48,348 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-16 16:49:48,349 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-02-16 16:49:48,349 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=100, Invalid=362, Unknown=0, NotChecked=0, Total=462 [2022-02-16 16:49:48,349 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-16 16:49:48,349 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-16 16:49:48,349 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.285714285714286) internal successors, (65), 7 states have internal predecessors, (65), 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) [2022-02-16 16:49:48,349 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-16 16:49:48,349 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-02-16 16:49:48,349 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-02-16 16:49:48,350 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2022-02-16 16:49:48,350 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-16 16:49:52,079 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 659 transitions and produced 645 states. [2022-02-16 16:49:52,080 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-16 16:49:52,080 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-16 16:49:52,080 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-02-16 16:49:52,080 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-02-16 16:49:52,084 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-02-16 16:49:52,105 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-02-16 16:49:52,299 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-16 16:49:52,300 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting threadErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATION, threadErr0ASSERT_VIOLATIONERROR_FUNCTION, threadErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-16 16:49:52,301 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-16 16:49:52,301 INFO L85 PathProgramCache]: Analyzing trace with hash -91214928, now seen corresponding path program 4 times [2022-02-16 16:49:52,301 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-16 16:49:52,301 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1172337354] [2022-02-16 16:49:52,301 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-16 16:49:52,302 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-16 16:49:52,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-16 16:49:52,878 INFO L134 CoverageAnalysis]: Checked inductivity of 970 backedges. 0 proven. 970 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-16 16:49:52,879 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-16 16:49:52,879 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1172337354] [2022-02-16 16:49:52,879 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1172337354] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-16 16:49:52,879 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1509624333] [2022-02-16 16:49:52,880 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-02-16 16:49:52,880 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-16 16:49:52,880 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-16 16:49:52,886 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-16 16:49:52,887 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-02-16 16:49:53,003 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-02-16 16:49:53,003 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-16 16:49:53,004 INFO L263 TraceCheckSpWp]: Trace formula consists of 309 conjuncts, 42 conjunts are in the unsatisfiable core [2022-02-16 16:49:53,008 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-16 16:49:53,282 INFO L134 CoverageAnalysis]: Checked inductivity of 970 backedges. 0 proven. 970 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-16 16:49:53,282 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-16 16:49:54,487 INFO L134 CoverageAnalysis]: Checked inductivity of 970 backedges. 0 proven. 970 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-16 16:49:54,487 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1509624333] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-16 16:49:54,487 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-16 16:49:54,488 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [43, 43, 43] total 86 [2022-02-16 16:49:54,488 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [791155936] [2022-02-16 16:49:54,488 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-16 16:49:54,488 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 86 states [2022-02-16 16:49:54,488 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-16 16:49:54,490 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 86 interpolants. [2022-02-16 16:49:54,492 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1892, Invalid=5418, Unknown=0, NotChecked=0, Total=7310 [2022-02-16 16:49:54,492 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-16 16:49:54,492 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-16 16:49:54,493 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 86 states, 86 states have (on average 3.127906976744186) internal successors, (269), 86 states have internal predecessors, (269), 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) [2022-02-16 16:49:54,493 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-16 16:49:54,493 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-02-16 16:49:54,493 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-02-16 16:49:54,493 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2022-02-16 16:49:54,493 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2022-02-16 16:49:54,493 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-16 16:49:58,676 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 731 transitions and produced 650 states. [2022-02-16 16:49:58,676 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-16 16:49:58,677 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-16 16:49:58,678 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-02-16 16:49:58,679 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-02-16 16:49:58,679 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-02-16 16:49:58,679 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 123 states. [2022-02-16 16:49:58,701 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-02-16 16:49:58,887 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-16 16:49:58,888 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting threadErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATION, threadErr0ASSERT_VIOLATIONERROR_FUNCTION, threadErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-16 16:49:58,888 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-16 16:49:58,888 INFO L85 PathProgramCache]: Analyzing trace with hash 1060786512, now seen corresponding path program 5 times [2022-02-16 16:49:58,888 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-16 16:49:58,889 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1172086836] [2022-02-16 16:49:58,889 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-16 16:49:58,889 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-16 16:49:58,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-16 16:50:01,242 INFO L134 CoverageAnalysis]: Checked inductivity of 7209 backedges. 7000 proven. 209 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-16 16:50:01,243 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-16 16:50:01,243 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1172086836] [2022-02-16 16:50:01,243 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1172086836] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-16 16:50:01,243 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1287991628] [2022-02-16 16:50:01,243 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-02-16 16:50:01,243 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-16 16:50:01,244 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-16 16:50:01,245 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) [2022-02-16 16:50:01,246 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-02-16 16:50:01,393 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 55 check-sat command(s) [2022-02-16 16:50:01,393 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-16 16:50:01,396 INFO L263 TraceCheckSpWp]: Trace formula consists of 581 conjuncts, 88 conjunts are in the unsatisfiable core [2022-02-16 16:50:01,402 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-16 16:50:01,963 INFO L134 CoverageAnalysis]: Checked inductivity of 7209 backedges. 6934 proven. 0 refuted. 0 times theorem prover too weak. 275 trivial. 0 not checked. [2022-02-16 16:50:01,963 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-02-16 16:50:01,963 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1287991628] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-16 16:50:01,963 INFO L191 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-02-16 16:50:01,963 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [89] imperfect sequences [109] total 111 [2022-02-16 16:50:01,964 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1548530561] [2022-02-16 16:50:01,964 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-16 16:50:01,965 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 89 states [2022-02-16 16:50:01,965 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-16 16:50:01,966 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 89 interpolants. [2022-02-16 16:50:01,968 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3030, Invalid=9180, Unknown=0, NotChecked=0, Total=12210 [2022-02-16 16:50:01,968 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-16 16:50:01,968 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-16 16:50:01,971 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 89 states, 89 states have (on average 3.101123595505618) internal successors, (276), 89 states have internal predecessors, (276), 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) [2022-02-16 16:50:01,971 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-16 16:50:01,971 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-02-16 16:50:01,971 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-02-16 16:50:01,971 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2022-02-16 16:50:01,971 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2022-02-16 16:50:01,971 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 123 states. [2022-02-16 16:50:01,971 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-16 16:50:05,024 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 736 transitions and produced 658 states. [2022-02-16 16:50:05,025 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-16 16:50:05,025 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-16 16:50:05,025 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-02-16 16:50:05,025 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-02-16 16:50:05,025 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-02-16 16:50:05,025 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 123 states. [2022-02-16 16:50:05,026 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 132 states. [2022-02-16 16:50:05,045 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2022-02-16 16:50:05,245 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-16 16:50:05,245 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting threadErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATION, threadErr0ASSERT_VIOLATIONERROR_FUNCTION, threadErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-16 16:50:05,246 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-16 16:50:05,246 INFO L85 PathProgramCache]: Analyzing trace with hash -1466433283, now seen corresponding path program 1 times [2022-02-16 16:50:05,246 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-16 16:50:05,246 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1379798813] [2022-02-16 16:50:05,246 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-16 16:50:05,246 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-16 16:50:05,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-16 16:50:07,513 INFO L134 CoverageAnalysis]: Checked inductivity of 4515 backedges. 0 proven. 4515 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-16 16:50:07,514 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-16 16:50:07,514 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1379798813] [2022-02-16 16:50:07,514 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1379798813] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-16 16:50:07,514 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [390448386] [2022-02-16 16:50:07,514 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-16 16:50:07,514 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-16 16:50:07,514 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-16 16:50:07,517 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-16 16:50:07,518 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-02-16 16:50:07,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-16 16:50:07,612 INFO L263 TraceCheckSpWp]: Trace formula consists of 490 conjuncts, 173 conjunts are in the unsatisfiable core [2022-02-16 16:50:07,617 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-16 16:50:08,533 INFO L134 CoverageAnalysis]: Checked inductivity of 4515 backedges. 0 proven. 4515 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-16 16:50:08,533 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-16 16:50:09,447 INFO L134 CoverageAnalysis]: Checked inductivity of 4515 backedges. 0 proven. 4515 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-16 16:50:09,447 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [390448386] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-16 16:50:09,447 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-16 16:50:09,447 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [88, 88, 88] total 88 [2022-02-16 16:50:09,448 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1126842327] [2022-02-16 16:50:09,448 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-16 16:50:09,448 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 88 states [2022-02-16 16:50:09,448 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-16 16:50:09,449 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 88 interpolants. [2022-02-16 16:50:09,451 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=173, Invalid=7483, Unknown=0, NotChecked=0, Total=7656 [2022-02-16 16:50:09,451 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-16 16:50:09,451 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-16 16:50:09,451 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 88 states, 88 states have (on average 3.0454545454545454) internal successors, (268), 88 states have internal predecessors, (268), 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) [2022-02-16 16:50:09,451 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-16 16:50:09,451 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-02-16 16:50:09,451 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-02-16 16:50:09,451 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2022-02-16 16:50:09,452 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2022-02-16 16:50:09,452 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 123 states. [2022-02-16 16:50:09,452 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 132 states. [2022-02-16 16:50:09,452 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-16 16:50:35,547 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 6641 transitions and produced 6564 states. [2022-02-16 16:50:35,548 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-16 16:50:35,548 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-16 16:50:35,548 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-02-16 16:50:35,548 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-02-16 16:50:35,548 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-02-16 16:50:35,548 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 123 states. [2022-02-16 16:50:35,548 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 132 states. [2022-02-16 16:50:35,548 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 131 states. [2022-02-16 16:50:35,567 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-02-16 16:50:35,766 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-16 16:50:35,766 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting threadErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATION, threadErr0ASSERT_VIOLATIONERROR_FUNCTION, threadErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-16 16:50:35,767 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-16 16:50:35,767 INFO L85 PathProgramCache]: Analyzing trace with hash 524598547, now seen corresponding path program 6 times [2022-02-16 16:50:35,767 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-16 16:50:35,767 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [331682864] [2022-02-16 16:50:35,767 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-16 16:50:35,767 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-16 16:50:35,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-16 16:50:35,836 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-16 16:50:35,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-16 16:50:35,924 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-16 16:50:35,925 INFO L628 BasicCegarLoop]: Counterexample is feasible [2022-02-16 16:50:35,925 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location threadErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 3 remaining) [2022-02-16 16:50:35,927 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATION (1 of 3 remaining) [2022-02-16 16:50:35,927 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 3 remaining) [2022-02-16 16:50:35,927 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-02-16 16:50:35,932 INFO L732 BasicCegarLoop]: Path program histogram: [6, 1, 1, 1] [2022-02-16 16:50:35,936 INFO L230 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-02-16 16:50:35,936 INFO L180 ceAbstractionStarter]: Computing trace abstraction results [2022-02-16 16:50:36,034 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.02 04:50:36 BasicIcfg [2022-02-16 16:50:36,034 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-02-16 16:50:36,035 INFO L158 Benchmark]: Toolchain (without parser) took 51212.15ms. Allocated memory was 229.6MB in the beginning and 4.2GB in the end (delta: 3.9GB). Free memory was 177.0MB in the beginning and 2.6GB in the end (delta: -2.5GB). Peak memory consumption was 1.5GB. Max. memory is 8.0GB. [2022-02-16 16:50:36,035 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 229.6MB. Free memory was 195.4MB in the beginning and 195.3MB in the end (delta: 70.4kB). There was no memory consumed. Max. memory is 8.0GB. [2022-02-16 16:50:36,036 INFO L158 Benchmark]: CACSL2BoogieTranslator took 403.34ms. Allocated memory was 229.6MB in the beginning and 313.5MB in the end (delta: 83.9MB). Free memory was 176.9MB in the beginning and 281.7MB in the end (delta: -104.8MB). Peak memory consumption was 8.0MB. Max. memory is 8.0GB. [2022-02-16 16:50:36,037 INFO L158 Benchmark]: Boogie Procedure Inliner took 40.68ms. Allocated memory is still 313.5MB. Free memory was 281.7MB in the beginning and 279.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-02-16 16:50:36,037 INFO L158 Benchmark]: Boogie Preprocessor took 29.92ms. Allocated memory is still 313.5MB. Free memory was 279.6MB in the beginning and 278.5MB in the end (delta: 1.0MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-02-16 16:50:36,037 INFO L158 Benchmark]: RCFGBuilder took 341.56ms. Allocated memory is still 313.5MB. Free memory was 278.5MB in the beginning and 266.0MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. [2022-02-16 16:50:36,037 INFO L158 Benchmark]: TraceAbstraction took 50392.19ms. Allocated memory was 313.5MB in the beginning and 4.2GB in the end (delta: 3.9GB). Free memory was 265.4MB in the beginning and 2.6GB in the end (delta: -2.4GB). Peak memory consumption was 1.5GB. Max. memory is 8.0GB. [2022-02-16 16:50:36,038 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12ms. Allocated memory is still 229.6MB. Free memory was 195.4MB in the beginning and 195.3MB in the end (delta: 70.4kB). There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 403.34ms. Allocated memory was 229.6MB in the beginning and 313.5MB in the end (delta: 83.9MB). Free memory was 176.9MB in the beginning and 281.7MB in the end (delta: -104.8MB). Peak memory consumption was 8.0MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 40.68ms. Allocated memory is still 313.5MB. Free memory was 281.7MB in the beginning and 279.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 29.92ms. Allocated memory is still 313.5MB. Free memory was 279.6MB in the beginning and 278.5MB in the end (delta: 1.0MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 341.56ms. Allocated memory is still 313.5MB. Free memory was 278.5MB in the beginning and 266.0MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. * TraceAbstraction took 50392.19ms. Allocated memory was 313.5MB in the beginning and 4.2GB in the end (delta: 3.9GB). Free memory was 265.4MB in the beginning and 2.6GB in the end (delta: -2.4GB). Peak memory consumption was 1.5GB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Independence relation benchmarks ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 0, Positive cache size: 0, Positive conditional cache size: 0, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Eliminated conditions: 0, Maximal queried relation: -1, Independence queries for same thread: 0 - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - CounterExampleResult [Line: 704]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L697] 0 pthread_mutex_t lock; VAL [lock={3:0}] [L698] 0 pthread_cond_t cond; VAL [cond={4:0}, lock={3:0}] [L699] 0 int x; VAL [cond={4:0}, lock={3:0}, x=0] [L709] 0 pthread_t t; VAL [cond={4:0}, lock={3:0}, t={7:0}, x=0] [L712] FCALL, FORK 0 pthread_create( &t, ((void *)0), thread, ((void *)0) ) VAL [arg={0:0}, cond={4:0}, lock={3:0}, pthread_create( &t, ((void *)0), thread, ((void *)0) )=-1, t={7:0}, x=0] [L713] 0 int i = 0; VAL [arg={0:0}, cond={4:0}, i=0, lock={3:0}, t={7:0}, x=0] [L713] COND TRUE 0 i <= 42 VAL [arg={0:0}, cond={4:0}, i=0, lock={3:0}, t={7:0}, x=0] [L714] 0 x = i VAL [arg={0:0}, cond={4:0}, i=0, lock={3:0}, t={7:0}, x=0] [L713] 0 i++ VAL [arg={0:0}, cond={4:0}, i=1, lock={3:0}, t={7:0}, x=0] [L713] COND TRUE 0 i <= 42 VAL [arg={0:0}, cond={4:0}, i=1, lock={3:0}, t={7:0}, x=0] [L714] 0 x = i VAL [arg={0:0}, cond={4:0}, i=1, lock={3:0}, t={7:0}, x=1] [L713] 0 i++ VAL [arg={0:0}, cond={4:0}, i=2, lock={3:0}, t={7:0}, x=1] [L713] COND TRUE 0 i <= 42 VAL [arg={0:0}, cond={4:0}, i=2, lock={3:0}, t={7:0}, x=1] [L714] 0 x = i VAL [arg={0:0}, cond={4:0}, i=2, lock={3:0}, t={7:0}, x=2] [L713] 0 i++ VAL [arg={0:0}, cond={4:0}, i=3, lock={3:0}, t={7:0}, x=2] [L713] COND TRUE 0 i <= 42 VAL [arg={0:0}, cond={4:0}, i=3, lock={3:0}, t={7:0}, x=2] [L714] 0 x = i VAL [arg={0:0}, cond={4:0}, i=3, lock={3:0}, t={7:0}, x=3] [L713] 0 i++ VAL [arg={0:0}, cond={4:0}, i=4, lock={3:0}, t={7:0}, x=3] [L713] COND TRUE 0 i <= 42 VAL [arg={0:0}, cond={4:0}, i=4, lock={3:0}, t={7:0}, x=3] [L714] 0 x = i VAL [arg={0:0}, cond={4:0}, i=4, lock={3:0}, t={7:0}, x=4] [L713] 0 i++ VAL [arg={0:0}, cond={4:0}, i=5, lock={3:0}, t={7:0}, x=4] [L713] COND TRUE 0 i <= 42 VAL [arg={0:0}, cond={4:0}, i=5, lock={3:0}, t={7:0}, x=4] [L714] 0 x = i VAL [arg={0:0}, cond={4:0}, i=5, lock={3:0}, t={7:0}, x=5] [L713] 0 i++ VAL [arg={0:0}, cond={4:0}, i=6, lock={3:0}, t={7:0}, x=5] [L713] COND TRUE 0 i <= 42 VAL [arg={0:0}, cond={4:0}, i=6, lock={3:0}, t={7:0}, x=5] [L714] 0 x = i VAL [arg={0:0}, cond={4:0}, i=6, lock={3:0}, t={7:0}, x=6] [L713] 0 i++ VAL [arg={0:0}, cond={4:0}, i=7, lock={3:0}, t={7:0}, x=6] [L713] COND TRUE 0 i <= 42 VAL [arg={0:0}, cond={4:0}, i=7, lock={3:0}, t={7:0}, x=6] [L714] 0 x = i VAL [arg={0:0}, cond={4:0}, i=7, lock={3:0}, t={7:0}, x=7] [L713] 0 i++ VAL [arg={0:0}, cond={4:0}, i=8, lock={3:0}, t={7:0}, x=7] [L713] COND TRUE 0 i <= 42 VAL [arg={0:0}, cond={4:0}, i=8, lock={3:0}, t={7:0}, x=7] [L714] 0 x = i VAL [arg={0:0}, cond={4:0}, i=8, lock={3:0}, t={7:0}, x=8] [L713] 0 i++ VAL [arg={0:0}, cond={4:0}, i=9, lock={3:0}, t={7:0}, x=8] [L713] COND TRUE 0 i <= 42 VAL [arg={0:0}, cond={4:0}, i=9, lock={3:0}, t={7:0}, x=8] [L714] 0 x = i VAL [arg={0:0}, cond={4:0}, i=9, lock={3:0}, t={7:0}, x=9] [L713] 0 i++ VAL [arg={0:0}, cond={4:0}, i=10, lock={3:0}, t={7:0}, x=9] [L713] COND TRUE 0 i <= 42 VAL [arg={0:0}, cond={4:0}, i=10, lock={3:0}, t={7:0}, x=9] [L714] 0 x = i VAL [arg={0:0}, cond={4:0}, i=10, lock={3:0}, t={7:0}, x=10] [L713] 0 i++ VAL [arg={0:0}, cond={4:0}, i=11, lock={3:0}, t={7:0}, x=10] [L713] COND TRUE 0 i <= 42 VAL [arg={0:0}, cond={4:0}, i=11, lock={3:0}, t={7:0}, x=10] [L714] 0 x = i VAL [arg={0:0}, cond={4:0}, i=11, lock={3:0}, t={7:0}, x=11] [L713] 0 i++ VAL [arg={0:0}, cond={4:0}, i=12, lock={3:0}, t={7:0}, x=11] [L713] COND TRUE 0 i <= 42 VAL [arg={0:0}, cond={4:0}, i=12, lock={3:0}, t={7:0}, x=11] [L714] 0 x = i VAL [arg={0:0}, cond={4:0}, i=12, lock={3:0}, t={7:0}, x=12] [L713] 0 i++ VAL [arg={0:0}, cond={4:0}, i=13, lock={3:0}, t={7:0}, x=12] [L713] COND TRUE 0 i <= 42 VAL [arg={0:0}, cond={4:0}, i=13, lock={3:0}, t={7:0}, x=12] [L714] 0 x = i VAL [arg={0:0}, cond={4:0}, i=13, lock={3:0}, t={7:0}, x=13] [L713] 0 i++ VAL [arg={0:0}, cond={4:0}, i=14, lock={3:0}, t={7:0}, x=13] [L713] COND TRUE 0 i <= 42 VAL [arg={0:0}, cond={4:0}, i=14, lock={3:0}, t={7:0}, x=13] [L714] 0 x = i VAL [arg={0:0}, cond={4:0}, i=14, lock={3:0}, t={7:0}, x=14] [L713] 0 i++ VAL [arg={0:0}, cond={4:0}, i=15, lock={3:0}, t={7:0}, x=14] [L713] COND TRUE 0 i <= 42 VAL [arg={0:0}, cond={4:0}, i=15, lock={3:0}, t={7:0}, x=14] [L714] 0 x = i VAL [arg={0:0}, cond={4:0}, i=15, lock={3:0}, t={7:0}, x=15] [L713] 0 i++ VAL [arg={0:0}, cond={4:0}, i=16, lock={3:0}, t={7:0}, x=15] [L713] COND TRUE 0 i <= 42 VAL [arg={0:0}, cond={4:0}, i=16, lock={3:0}, t={7:0}, x=15] [L714] 0 x = i VAL [arg={0:0}, cond={4:0}, i=16, lock={3:0}, t={7:0}, x=16] [L713] 0 i++ VAL [arg={0:0}, cond={4:0}, i=17, lock={3:0}, t={7:0}, x=16] [L713] COND TRUE 0 i <= 42 VAL [arg={0:0}, cond={4:0}, i=17, lock={3:0}, t={7:0}, x=16] [L714] 0 x = i VAL [arg={0:0}, cond={4:0}, i=17, lock={3:0}, t={7:0}, x=17] [L713] 0 i++ VAL [arg={0:0}, cond={4:0}, i=18, lock={3:0}, t={7:0}, x=17] [L713] COND TRUE 0 i <= 42 VAL [arg={0:0}, cond={4:0}, i=18, lock={3:0}, t={7:0}, x=17] [L714] 0 x = i VAL [arg={0:0}, cond={4:0}, i=18, lock={3:0}, t={7:0}, x=18] [L713] 0 i++ VAL [arg={0:0}, cond={4:0}, i=19, lock={3:0}, t={7:0}, x=18] [L713] COND TRUE 0 i <= 42 VAL [arg={0:0}, cond={4:0}, i=19, lock={3:0}, t={7:0}, x=18] [L714] 0 x = i VAL [arg={0:0}, cond={4:0}, i=19, lock={3:0}, t={7:0}, x=19] [L713] 0 i++ VAL [arg={0:0}, cond={4:0}, i=20, lock={3:0}, t={7:0}, x=19] [L713] COND TRUE 0 i <= 42 VAL [arg={0:0}, cond={4:0}, i=20, lock={3:0}, t={7:0}, x=19] [L714] 0 x = i VAL [arg={0:0}, cond={4:0}, i=20, lock={3:0}, t={7:0}, x=20] [L713] 0 i++ VAL [arg={0:0}, cond={4:0}, i=21, lock={3:0}, t={7:0}, x=20] [L713] COND TRUE 0 i <= 42 VAL [arg={0:0}, cond={4:0}, i=21, lock={3:0}, t={7:0}, x=20] [L714] 0 x = i VAL [arg={0:0}, cond={4:0}, i=21, lock={3:0}, t={7:0}, x=21] [L713] 0 i++ VAL [arg={0:0}, cond={4:0}, i=22, lock={3:0}, t={7:0}, x=21] [L713] COND TRUE 0 i <= 42 VAL [arg={0:0}, cond={4:0}, i=22, lock={3:0}, t={7:0}, x=21] [L714] 0 x = i VAL [arg={0:0}, cond={4:0}, i=22, lock={3:0}, t={7:0}, x=22] [L713] 0 i++ VAL [arg={0:0}, cond={4:0}, i=23, lock={3:0}, t={7:0}, x=22] [L713] COND TRUE 0 i <= 42 VAL [arg={0:0}, cond={4:0}, i=23, lock={3:0}, t={7:0}, x=22] [L714] 0 x = i VAL [arg={0:0}, cond={4:0}, i=23, lock={3:0}, t={7:0}, x=23] [L713] 0 i++ VAL [arg={0:0}, cond={4:0}, i=24, lock={3:0}, t={7:0}, x=23] [L713] COND TRUE 0 i <= 42 VAL [arg={0:0}, cond={4:0}, i=24, lock={3:0}, t={7:0}, x=23] [L714] 0 x = i VAL [arg={0:0}, cond={4:0}, i=24, lock={3:0}, t={7:0}, x=24] [L713] 0 i++ VAL [arg={0:0}, cond={4:0}, i=25, lock={3:0}, t={7:0}, x=24] [L713] COND TRUE 0 i <= 42 VAL [arg={0:0}, cond={4:0}, i=25, lock={3:0}, t={7:0}, x=24] [L714] 0 x = i VAL [arg={0:0}, cond={4:0}, i=25, lock={3:0}, t={7:0}, x=25] [L713] 0 i++ VAL [arg={0:0}, cond={4:0}, i=26, lock={3:0}, t={7:0}, x=25] [L713] COND TRUE 0 i <= 42 VAL [arg={0:0}, cond={4:0}, i=26, lock={3:0}, t={7:0}, x=25] [L714] 0 x = i VAL [arg={0:0}, cond={4:0}, i=26, lock={3:0}, t={7:0}, x=26] [L713] 0 i++ VAL [arg={0:0}, cond={4:0}, i=27, lock={3:0}, t={7:0}, x=26] [L713] COND TRUE 0 i <= 42 VAL [arg={0:0}, cond={4:0}, i=27, lock={3:0}, t={7:0}, x=26] [L714] 0 x = i VAL [arg={0:0}, cond={4:0}, i=27, lock={3:0}, t={7:0}, x=27] [L713] 0 i++ VAL [arg={0:0}, cond={4:0}, i=28, lock={3:0}, t={7:0}, x=27] [L713] COND TRUE 0 i <= 42 VAL [arg={0:0}, cond={4:0}, i=28, lock={3:0}, t={7:0}, x=27] [L714] 0 x = i VAL [arg={0:0}, cond={4:0}, i=28, lock={3:0}, t={7:0}, x=28] [L713] 0 i++ VAL [arg={0:0}, cond={4:0}, i=29, lock={3:0}, t={7:0}, x=28] [L713] COND TRUE 0 i <= 42 VAL [arg={0:0}, cond={4:0}, i=29, lock={3:0}, t={7:0}, x=28] [L714] 0 x = i VAL [arg={0:0}, cond={4:0}, i=29, lock={3:0}, t={7:0}, x=29] [L713] 0 i++ VAL [arg={0:0}, cond={4:0}, i=30, lock={3:0}, t={7:0}, x=29] [L713] COND TRUE 0 i <= 42 VAL [arg={0:0}, cond={4:0}, i=30, lock={3:0}, t={7:0}, x=29] [L714] 0 x = i VAL [arg={0:0}, cond={4:0}, i=30, lock={3:0}, t={7:0}, x=30] [L713] 0 i++ VAL [arg={0:0}, cond={4:0}, i=31, lock={3:0}, t={7:0}, x=30] [L713] COND TRUE 0 i <= 42 VAL [arg={0:0}, cond={4:0}, i=31, lock={3:0}, t={7:0}, x=30] [L714] 0 x = i VAL [arg={0:0}, cond={4:0}, i=31, lock={3:0}, t={7:0}, x=31] [L713] 0 i++ VAL [arg={0:0}, cond={4:0}, i=32, lock={3:0}, t={7:0}, x=31] [L713] COND TRUE 0 i <= 42 VAL [arg={0:0}, cond={4:0}, i=32, lock={3:0}, t={7:0}, x=31] [L714] 0 x = i VAL [arg={0:0}, cond={4:0}, i=32, lock={3:0}, t={7:0}, x=32] [L713] 0 i++ VAL [arg={0:0}, cond={4:0}, i=33, lock={3:0}, t={7:0}, x=32] [L713] COND TRUE 0 i <= 42 VAL [arg={0:0}, cond={4:0}, i=33, lock={3:0}, t={7:0}, x=32] [L714] 0 x = i VAL [arg={0:0}, cond={4:0}, i=33, lock={3:0}, t={7:0}, x=33] [L713] 0 i++ VAL [arg={0:0}, cond={4:0}, i=34, lock={3:0}, t={7:0}, x=33] [L713] COND TRUE 0 i <= 42 VAL [arg={0:0}, cond={4:0}, i=34, lock={3:0}, t={7:0}, x=33] [L714] 0 x = i VAL [arg={0:0}, cond={4:0}, i=34, lock={3:0}, t={7:0}, x=34] [L713] 0 i++ VAL [arg={0:0}, cond={4:0}, i=35, lock={3:0}, t={7:0}, x=34] [L713] COND TRUE 0 i <= 42 VAL [arg={0:0}, cond={4:0}, i=35, lock={3:0}, t={7:0}, x=34] [L714] 0 x = i VAL [arg={0:0}, cond={4:0}, i=35, lock={3:0}, t={7:0}, x=35] [L713] 0 i++ VAL [arg={0:0}, cond={4:0}, i=36, lock={3:0}, t={7:0}, x=35] [L713] COND TRUE 0 i <= 42 VAL [arg={0:0}, cond={4:0}, i=36, lock={3:0}, t={7:0}, x=35] [L714] 0 x = i VAL [arg={0:0}, cond={4:0}, i=36, lock={3:0}, t={7:0}, x=36] [L713] 0 i++ VAL [arg={0:0}, cond={4:0}, i=37, lock={3:0}, t={7:0}, x=36] [L713] COND TRUE 0 i <= 42 VAL [arg={0:0}, cond={4:0}, i=37, lock={3:0}, t={7:0}, x=36] [L714] 0 x = i VAL [arg={0:0}, cond={4:0}, i=37, lock={3:0}, t={7:0}, x=37] [L713] 0 i++ VAL [arg={0:0}, cond={4:0}, i=38, lock={3:0}, t={7:0}, x=37] [L713] COND TRUE 0 i <= 42 VAL [arg={0:0}, cond={4:0}, i=38, lock={3:0}, t={7:0}, x=37] [L714] 0 x = i VAL [arg={0:0}, cond={4:0}, i=38, lock={3:0}, t={7:0}, x=38] [L713] 0 i++ VAL [arg={0:0}, cond={4:0}, i=39, lock={3:0}, t={7:0}, x=38] [L713] COND TRUE 0 i <= 42 VAL [arg={0:0}, cond={4:0}, i=39, lock={3:0}, t={7:0}, x=38] [L714] 0 x = i VAL [arg={0:0}, cond={4:0}, i=39, lock={3:0}, t={7:0}, x=39] [L713] 0 i++ VAL [arg={0:0}, cond={4:0}, i=40, lock={3:0}, t={7:0}, x=39] [L713] COND TRUE 0 i <= 42 VAL [arg={0:0}, cond={4:0}, i=40, lock={3:0}, t={7:0}, x=39] [L714] 0 x = i VAL [arg={0:0}, cond={4:0}, i=40, lock={3:0}, t={7:0}, x=40] [L713] 0 i++ VAL [arg={0:0}, cond={4:0}, i=41, lock={3:0}, t={7:0}, x=40] [L713] COND TRUE 0 i <= 42 VAL [arg={0:0}, cond={4:0}, i=41, lock={3:0}, t={7:0}, x=40] [L714] 0 x = i VAL [arg={0:0}, cond={4:0}, i=41, lock={3:0}, t={7:0}, x=41] [L713] 0 i++ VAL [arg={0:0}, cond={4:0}, i=42, lock={3:0}, t={7:0}, x=41] [L713] COND TRUE 0 i <= 42 VAL [arg={0:0}, cond={4:0}, i=42, lock={3:0}, t={7:0}, x=41] [L704] 1 !(x == 42) ? reach_error() : (void)0 VAL [arg={0:0}, arg={0:0}, cond={4:0}, lock={3:0}, x=41] [L714] 0 x = i VAL [arg={0:0}, arg={0:0}, cond={4:0}, i=42, lock={3:0}, t={7:0}, x=42] [L713] 0 i++ VAL [arg={0:0}, arg={0:0}, cond={4:0}, i=43, lock={3:0}, t={7:0}, x=42] [L713] COND FALSE 0 !(i <= 42) VAL [arg={0:0}, arg={0:0}, cond={4:0}, i=43, lock={3:0}, t={7:0}, x=42] [L716] 0 \read(t) VAL [\read(t)=-1, arg={0:0}, arg={0:0}, cond={4:0}, i=43, lock={3:0}, t={7:0}, x=42] [L704] 1 reach_error() VAL [arg={0:0}, arg={0:0}, cond={4:0}, lock={3:0}, x=42] - UnprovableResult [Line: 712]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 86 locations, 3 error locations. Started 1 CEGAR loops. OverallTime: 50.2s, OverallIterations: 9, TraceHistogramMax: 0, PathProgramHistogramMax: 6, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 37.6s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=132occurred in iteration=0, InterpolantAutomatonStates: 431, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 10.0s InterpolantComputationTime, 2316 NumberOfCodeBlocks, 2291 NumberOfCodeBlocksAsserted, 73 NumberOfCheckSat, 2581 ConstructedInterpolants, 0 QuantifiedInterpolants, 8443 SizeOfPredicates, 224 NumberOfNonLiveVariables, 1875 ConjunctsInSsa, 322 ConjunctsInUnsatCore, 18 InterpolantComputations, 4 PerfectInterpolantSequences, 14321/31154 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2022-02-16 16:50:36,078 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Forceful destruction successful, exit code 0 [2022-02-16 16:50:36,267 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...