/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-Lazy.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/goblint-regression/13-privatized_41-traces-ex-7_unknown_1_pos.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.mcr-reduction-44898dd [2022-02-10 12:47:09,091 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-02-10 12:47:09,092 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-02-10 12:47:09,144 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-02-10 12:47:09,145 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-02-10 12:47:09,145 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-02-10 12:47:09,146 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-02-10 12:47:09,147 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-02-10 12:47:09,148 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-02-10 12:47:09,149 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-02-10 12:47:09,150 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-02-10 12:47:09,150 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-02-10 12:47:09,150 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-02-10 12:47:09,151 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-02-10 12:47:09,152 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-02-10 12:47:09,153 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-02-10 12:47:09,153 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-02-10 12:47:09,154 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-02-10 12:47:09,156 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-02-10 12:47:09,157 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-02-10 12:47:09,158 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-02-10 12:47:09,159 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-02-10 12:47:09,160 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-02-10 12:47:09,161 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-02-10 12:47:09,163 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-02-10 12:47:09,168 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-02-10 12:47:09,169 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-02-10 12:47:09,169 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-02-10 12:47:09,170 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-Lazy.epf [2022-02-10 12:47:09,188 INFO L113 SettingsManager]: Loading preferences was successful [2022-02-10 12:47:09,188 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-02-10 12:47:09,188 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-02-10 12:47:09,189 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-02-10 12:47:09,189 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-02-10 12:47:09,189 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-02-10 12:47:09,190 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-02-10 12:47:09,190 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-02-10 12:47:09,190 INFO L138 SettingsManager]: * Use SBE=true [2022-02-10 12:47:09,190 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-02-10 12:47:09,190 INFO L138 SettingsManager]: * sizeof long=4 [2022-02-10 12:47:09,190 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-02-10 12:47:09,190 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-02-10 12:47:09,190 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-02-10 12:47:09,190 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-02-10 12:47:09,191 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-02-10 12:47:09,191 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-02-10 12:47:09,191 INFO L138 SettingsManager]: * sizeof long double=12 [2022-02-10 12:47:09,191 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-02-10 12:47:09,191 INFO L138 SettingsManager]: * Use constant arrays=true [2022-02-10 12:47:09,191 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-02-10 12:47:09,191 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-02-10 12:47:09,191 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-02-10 12:47:09,191 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-02-10 12:47:09,191 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-02-10 12:47:09,192 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-10 12:47:09,192 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-02-10 12:47:09,192 INFO L138 SettingsManager]: * Construct finite automaton lazily=true [2022-02-10 12:47:09,192 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-02-10 12:47:09,192 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-02-10 12:47:09,192 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-02-10 12:47:09,192 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-02-10 12:47:09,192 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-02-10 12:47:09,192 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2022-02-10 12:47:09,193 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-02-10 12:47:09,193 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=MCR_WITHOUT_DEPRANKS [2022-02-10 12:47:09,193 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-02-10 12:47:09,365 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-02-10 12:47:09,383 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-02-10 12:47:09,385 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-02-10 12:47:09,386 INFO L271 PluginConnector]: Initializing CDTParser... [2022-02-10 12:47:09,386 INFO L275 PluginConnector]: CDTParser initialized [2022-02-10 12:47:09,387 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/13-privatized_41-traces-ex-7_unknown_1_pos.i [2022-02-10 12:47:09,489 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/930c4c575/fec0cb6eef3642b79f410955db8da989/FLAG0a664ce81 [2022-02-10 12:47:09,850 INFO L306 CDTParser]: Found 1 translation units. [2022-02-10 12:47:09,850 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_41-traces-ex-7_unknown_1_pos.i [2022-02-10 12:47:09,870 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/930c4c575/fec0cb6eef3642b79f410955db8da989/FLAG0a664ce81 [2022-02-10 12:47:10,232 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/930c4c575/fec0cb6eef3642b79f410955db8da989 [2022-02-10 12:47:10,237 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-02-10 12:47:10,239 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-02-10 12:47:10,243 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-02-10 12:47:10,243 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-02-10 12:47:10,246 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-02-10 12:47:10,246 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.02 12:47:10" (1/1) ... [2022-02-10 12:47:10,248 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5e380f60 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.02 12:47:10, skipping insertion in model container [2022-02-10 12:47:10,249 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.02 12:47:10" (1/1) ... [2022-02-10 12:47:10,254 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-02-10 12:47:10,289 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-02-10 12:47:10,427 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_41-traces-ex-7_unknown_1_pos.i[1097,1110] [2022-02-10 12:47:10,609 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-10 12:47:10,621 INFO L203 MainTranslator]: Completed pre-run [2022-02-10 12:47:10,629 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_41-traces-ex-7_unknown_1_pos.i[1097,1110] [2022-02-10 12:47:10,665 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-10 12:47:10,692 INFO L208 MainTranslator]: Completed translation [2022-02-10 12:47:10,693 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.02 12:47:10 WrapperNode [2022-02-10 12:47:10,693 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-02-10 12:47:10,694 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-02-10 12:47:10,694 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-02-10 12:47:10,694 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-02-10 12:47:10,699 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.02 12:47:10" (1/1) ... [2022-02-10 12:47:10,710 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.02 12:47:10" (1/1) ... [2022-02-10 12:47:10,723 INFO L137 Inliner]: procedures = 162, calls = 28, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 48 [2022-02-10 12:47:10,724 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-02-10 12:47:10,725 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-02-10 12:47:10,725 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-02-10 12:47:10,725 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-02-10 12:47:10,730 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.02 12:47:10" (1/1) ... [2022-02-10 12:47:10,730 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.02 12:47:10" (1/1) ... [2022-02-10 12:47:10,733 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.02 12:47:10" (1/1) ... [2022-02-10 12:47:10,733 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.02 12:47:10" (1/1) ... [2022-02-10 12:47:10,735 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.02 12:47:10" (1/1) ... [2022-02-10 12:47:10,737 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.02 12:47:10" (1/1) ... [2022-02-10 12:47:10,738 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.02 12:47:10" (1/1) ... [2022-02-10 12:47:10,739 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-02-10 12:47:10,740 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-02-10 12:47:10,740 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-02-10 12:47:10,740 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-02-10 12:47:10,741 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.02 12:47:10" (1/1) ... [2022-02-10 12:47:10,746 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-10 12:47:10,756 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-10 12:47:10,767 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) [2022-02-10 12:47:10,784 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 [2022-02-10 12:47:10,795 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-02-10 12:47:10,795 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-02-10 12:47:10,795 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-02-10 12:47:10,795 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-02-10 12:47:10,795 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2022-02-10 12:47:10,795 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2022-02-10 12:47:10,795 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-02-10 12:47:10,796 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-02-10 12:47:10,796 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-02-10 12:47:10,796 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-02-10 12:47:10,797 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-02-10 12:47:10,884 INFO L234 CfgBuilder]: Building ICFG [2022-02-10 12:47:10,885 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-02-10 12:47:10,985 INFO L275 CfgBuilder]: Performing block encoding [2022-02-10 12:47:10,990 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-02-10 12:47:10,990 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-02-10 12:47:10,991 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.02 12:47:10 BoogieIcfgContainer [2022-02-10 12:47:10,992 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-02-10 12:47:10,993 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-02-10 12:47:10,993 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-02-10 12:47:10,996 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-02-10 12:47:10,996 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.02 12:47:10" (1/3) ... [2022-02-10 12:47:10,996 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@29ff5838 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.02 12:47:10, skipping insertion in model container [2022-02-10 12:47:10,996 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.02 12:47:10" (2/3) ... [2022-02-10 12:47:10,997 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@29ff5838 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.02 12:47:10, skipping insertion in model container [2022-02-10 12:47:10,997 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.02 12:47:10" (3/3) ... [2022-02-10 12:47:10,998 INFO L111 eAbstractionObserver]: Analyzing ICFG 13-privatized_41-traces-ex-7_unknown_1_pos.i [2022-02-10 12:47:11,001 WARN L150 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-02-10 12:47:11,002 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-02-10 12:47:11,002 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-02-10 12:47:11,002 INFO L534 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-02-10 12:47:11,022 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 12:47:11,022 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 12:47:11,022 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 12:47:11,023 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 12:47:11,023 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 12:47:11,023 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 12:47:11,023 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 12:47:11,023 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 12:47:11,023 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 12:47:11,024 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 12:47:11,024 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 12:47:11,024 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 12:47:11,024 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 12:47:11,025 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 12:47:11,025 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 12:47:11,025 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 12:47:11,025 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 12:47:11,026 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 12:47:11,026 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 12:47:11,026 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 12:47:11,028 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 12:47:11,029 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 12:47:11,029 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 12:47:11,029 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 12:47:11,029 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 12:47:11,029 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 12:47:11,031 INFO L148 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-02-10 12:47:11,065 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-02-10 12:47:11,065 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-10 12:47:11,067 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) [2022-02-10 12:47:11,069 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 [2022-02-10 12:47:11,092 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-02-10 12:47:11,098 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PARTIAL_ORDER_FA, mLazyFiniteAutomaton=true, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2022-02-10 12:47:11,098 INFO L340 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-02-10 12:47:11,172 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 58 transitions and produced 59 states. [2022-02-10 12:47:11,175 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-02-10 12:47:11,179 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 12:47:11,179 INFO L85 PathProgramCache]: Analyzing trace with hash 1593244809, now seen corresponding path program 1 times [2022-02-10 12:47:11,186 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 12:47:11,187 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1740101342] [2022-02-10 12:47:11,187 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 12:47:11,187 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 12:47:11,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 12:47:11,494 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 12:47:11,494 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 12:47:11,495 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1740101342] [2022-02-10 12:47:11,495 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1740101342] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 12:47:11,495 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 12:47:11,496 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-10 12:47:11,497 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1725970669] [2022-02-10 12:47:11,497 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 12:47:11,500 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-10 12:47:11,501 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 12:47:11,523 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-10 12:47:11,526 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-10 12:47:11,526 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-10 12:47:11,528 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-10 12:47:11,529 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.0) internal successors, (45), 5 states have internal predecessors, (45), 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) [2022-02-10 12:47:11,529 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-10 12:47:16,747 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 2228 transitions and produced 2229 states. [2022-02-10 12:47:16,747 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-02-10 12:47:16,748 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-02-10 12:47:16,748 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-02-10 12:47:16,749 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 12:47:16,749 INFO L85 PathProgramCache]: Analyzing trace with hash 1362363078, now seen corresponding path program 1 times [2022-02-10 12:47:16,749 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 12:47:16,749 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [907603179] [2022-02-10 12:47:16,750 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 12:47:16,750 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 12:47:16,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 12:47:16,890 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 12:47:16,890 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 12:47:16,890 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [907603179] [2022-02-10 12:47:16,891 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [907603179] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 12:47:16,891 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 12:47:16,891 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-02-10 12:47:16,891 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1060541704] [2022-02-10 12:47:16,891 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 12:47:16,892 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-02-10 12:47:16,892 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 12:47:16,893 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-02-10 12:47:16,893 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-10 12:47:16,893 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-10 12:47:16,893 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-10 12:47:16,894 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.5) internal successors, (51), 6 states have internal predecessors, (51), 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) [2022-02-10 12:47:16,894 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2022-02-10 12:47:16,894 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-10 12:47:18,300 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 1052 transitions and produced 1053 states. [2022-02-10 12:47:18,301 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-02-10 12:47:18,301 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-10 12:47:18,301 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-02-10 12:47:18,302 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-02-10 12:47:18,302 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 12:47:18,302 INFO L85 PathProgramCache]: Analyzing trace with hash -2093588025, now seen corresponding path program 1 times [2022-02-10 12:47:18,303 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 12:47:18,303 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1353637172] [2022-02-10 12:47:18,303 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 12:47:18,303 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 12:47:18,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 12:47:18,343 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 12:47:18,343 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 12:47:18,343 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1353637172] [2022-02-10 12:47:18,343 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1353637172] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 12:47:18,343 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 12:47:18,344 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-02-10 12:47:18,344 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1694941077] [2022-02-10 12:47:18,344 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 12:47:18,344 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-02-10 12:47:18,344 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 12:47:18,345 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-02-10 12:47:18,345 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-02-10 12:47:18,345 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-10 12:47:18,345 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-10 12:47:18,345 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 12:47:18,345 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2022-02-10 12:47:18,345 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-02-10 12:47:18,345 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-10 12:47:18,797 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 328 transitions and produced 329 states. [2022-02-10 12:47:18,797 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-02-10 12:47:18,797 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-10 12:47:18,798 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-10 12:47:18,798 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-02-10 12:47:18,798 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-02-10 12:47:18,799 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 12:47:18,799 INFO L85 PathProgramCache]: Analyzing trace with hash 401446305, now seen corresponding path program 2 times [2022-02-10 12:47:18,799 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 12:47:18,799 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [664295281] [2022-02-10 12:47:18,800 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 12:47:18,800 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 12:47:18,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 12:47:18,923 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 12:47:18,924 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 12:47:18,925 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [664295281] [2022-02-10 12:47:18,927 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [664295281] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 12:47:18,927 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 12:47:18,928 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-02-10 12:47:18,928 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1299218281] [2022-02-10 12:47:18,928 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 12:47:18,929 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-02-10 12:47:18,930 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 12:47:18,932 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-02-10 12:47:18,932 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-10 12:47:18,932 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-10 12:47:18,932 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-10 12:47:18,932 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.666666666666666) internal successors, (52), 6 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 12:47:18,932 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2022-02-10 12:47:18,933 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-02-10 12:47:18,933 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-02-10 12:47:18,933 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-10 12:47:20,141 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 910 transitions and produced 911 states. [2022-02-10 12:47:20,141 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-02-10 12:47:20,141 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-10 12:47:20,142 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-10 12:47:20,142 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-10 12:47:20,142 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-02-10 12:47:20,142 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-02-10 12:47:20,143 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 12:47:20,143 INFO L85 PathProgramCache]: Analyzing trace with hash -1452136571, now seen corresponding path program 1 times [2022-02-10 12:47:20,143 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 12:47:20,143 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1973457124] [2022-02-10 12:47:20,143 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 12:47:20,143 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 12:47:20,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-10 12:47:20,165 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-10 12:47:20,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-10 12:47:20,197 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-10 12:47:20,197 INFO L628 BasicCegarLoop]: Counterexample is feasible [2022-02-10 12:47:20,198 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 2 remaining) [2022-02-10 12:47:20,199 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATION (0 of 2 remaining) [2022-02-10 12:47:20,199 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-02-10 12:47:20,204 INFO L732 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1] [2022-02-10 12:47:20,208 INFO L230 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-02-10 12:47:20,208 INFO L180 ceAbstractionStarter]: Computing trace abstraction results [2022-02-10 12:47:20,235 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.02 12:47:20 BasicIcfg [2022-02-10 12:47:20,236 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-02-10 12:47:20,236 INFO L158 Benchmark]: Toolchain (without parser) took 9997.39ms. Allocated memory was 168.8MB in the beginning and 3.1GB in the end (delta: 3.0GB). Free memory was 110.1MB in the beginning and 1.3GB in the end (delta: -1.2GB). Peak memory consumption was 1.8GB. Max. memory is 8.0GB. [2022-02-10 12:47:20,237 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 168.8MB. Free memory is still 127.4MB. There was no memory consumed. Max. memory is 8.0GB. [2022-02-10 12:47:20,237 INFO L158 Benchmark]: CACSL2BoogieTranslator took 450.11ms. Allocated memory was 168.8MB in the beginning and 238.0MB in the end (delta: 69.2MB). Free memory was 109.8MB in the beginning and 205.7MB in the end (delta: -95.9MB). Peak memory consumption was 15.2MB. Max. memory is 8.0GB. [2022-02-10 12:47:20,238 INFO L158 Benchmark]: Boogie Procedure Inliner took 30.03ms. Allocated memory is still 238.0MB. Free memory was 205.2MB in the beginning and 203.6MB in the end (delta: 1.6MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-02-10 12:47:20,238 INFO L158 Benchmark]: Boogie Preprocessor took 14.46ms. Allocated memory is still 238.0MB. Free memory was 203.6MB in the beginning and 202.6MB in the end (delta: 1.0MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-02-10 12:47:20,239 INFO L158 Benchmark]: RCFGBuilder took 251.96ms. Allocated memory is still 238.0MB. Free memory was 202.0MB in the beginning and 189.5MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. [2022-02-10 12:47:20,239 INFO L158 Benchmark]: TraceAbstraction took 9242.81ms. Allocated memory was 238.0MB in the beginning and 3.1GB in the end (delta: 2.9GB). Free memory was 188.9MB in the beginning and 1.3GB in the end (delta: -1.1GB). Peak memory consumption was 1.8GB. Max. memory is 8.0GB. [2022-02-10 12:47:20,241 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13ms. Allocated memory is still 168.8MB. Free memory is still 127.4MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 450.11ms. Allocated memory was 168.8MB in the beginning and 238.0MB in the end (delta: 69.2MB). Free memory was 109.8MB in the beginning and 205.7MB in the end (delta: -95.9MB). Peak memory consumption was 15.2MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 30.03ms. Allocated memory is still 238.0MB. Free memory was 205.2MB in the beginning and 203.6MB in the end (delta: 1.6MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * Boogie Preprocessor took 14.46ms. Allocated memory is still 238.0MB. Free memory was 203.6MB in the beginning and 202.6MB in the end (delta: 1.0MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 251.96ms. Allocated memory is still 238.0MB. Free memory was 202.0MB in the beginning and 189.5MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. * TraceAbstraction took 9242.81ms. Allocated memory was 238.0MB in the beginning and 3.1GB in the end (delta: 2.9GB). Free memory was 188.9MB in the beginning and 1.3GB in the end (delta: -1.1GB). Peak memory consumption was 1.8GB. 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: 19]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L681] 0 int g = 0; VAL [g=0] [L682] 0 pthread_mutex_t A = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; VAL [A={3:0}, g=0] [L683] 0 pthread_mutex_t D = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; VAL [A={3:0}, D={4:0}, g=0] [L693] 0 pthread_t id; VAL [A={3:0}, D={4:0}, g=0, id={5:0}] [L694] FCALL, FORK 0 pthread_create(&id, ((void *)0), t_fun, ((void *)0)) VAL [A={3:0}, arg={0:0}, D={4:0}, g=0, id={5:0}, pthread_create(&id, ((void *)0), t_fun, ((void *)0))=-1] [L687] 1 g = 17 VAL [A={3:0}, arg={0:0}, arg={0:0}, D={4:0}, g=17] [L698] CALL 0 __VERIFIER_assert(g == 0) [L19] COND TRUE 0 !(cond) VAL [\old(cond)=0, A={3:0}, arg={0:0}, arg={0:0}, cond=0, D={4:0}, g=17] [L19] 0 reach_error() VAL [\old(cond)=0, A={3:0}, arg={0:0}, arg={0:0}, cond=0, D={4:0}, g=17] - UnprovableResult [Line: 694]: 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, 78 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 9.1s, OverallIterations: 5, TraceHistogramMax: 0, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 8.4s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred in iteration=0, InterpolantAutomatonStates: 20, 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: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 253 NumberOfCodeBlocks, 253 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 196 ConstructedInterpolants, 0 QuantifiedInterpolants, 560 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 0/0 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! [2022-02-10 12:47:20,271 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 [2022-02-10 12:47:20,489 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...