/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-c7b2d19 [2022-03-16 16:24:13,543 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-03-16 16:24:13,546 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-03-16 16:24:13,603 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-03-16 16:24:13,604 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-03-16 16:24:13,615 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-03-16 16:24:13,616 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-03-16 16:24:13,617 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-03-16 16:24:13,618 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-03-16 16:24:13,619 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-03-16 16:24:13,620 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-03-16 16:24:13,621 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-03-16 16:24:13,621 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-03-16 16:24:13,622 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-03-16 16:24:13,623 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-03-16 16:24:13,624 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-03-16 16:24:13,628 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-03-16 16:24:13,628 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-03-16 16:24:13,630 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-03-16 16:24:13,631 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-03-16 16:24:13,633 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-03-16 16:24:13,635 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-03-16 16:24:13,636 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-03-16 16:24:13,637 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-03-16 16:24:13,640 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-03-16 16:24:13,648 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-03-16 16:24:13,649 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-03-16 16:24:13,649 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-03-16 16:24:13,651 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 [2022-03-16 16:24:13,669 INFO L113 SettingsManager]: Loading preferences was successful [2022-03-16 16:24:13,669 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-03-16 16:24:13,670 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-03-16 16:24:13,670 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-03-16 16:24:13,670 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-03-16 16:24:13,671 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-03-16 16:24:13,671 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-03-16 16:24:13,671 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-03-16 16:24:13,671 INFO L138 SettingsManager]: * Use SBE=true [2022-03-16 16:24:13,671 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-03-16 16:24:13,672 INFO L138 SettingsManager]: * sizeof long=4 [2022-03-16 16:24:13,672 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-03-16 16:24:13,672 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-03-16 16:24:13,672 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-03-16 16:24:13,672 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-03-16 16:24:13,672 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-03-16 16:24:13,672 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-03-16 16:24:13,672 INFO L138 SettingsManager]: * sizeof long double=12 [2022-03-16 16:24:13,673 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-03-16 16:24:13,673 INFO L138 SettingsManager]: * Use constant arrays=true [2022-03-16 16:24:13,673 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-03-16 16:24:13,673 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-03-16 16:24:13,673 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-03-16 16:24:13,673 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-03-16 16:24:13,673 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-03-16 16:24:13,673 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-16 16:24:13,674 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-03-16 16:24:13,674 INFO L138 SettingsManager]: * Construct finite automaton lazily=true [2022-03-16 16:24:13,674 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-03-16 16:24:13,674 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-03-16 16:24:13,674 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-03-16 16:24:13,674 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-03-16 16:24:13,674 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-03-16 16:24:13,675 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2022-03-16 16:24:13,675 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-03-16 16:24:13,675 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=MCR_WITHOUT_DEPRANKS [2022-03-16 16:24:13,675 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-03-16 16:24:13,900 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-03-16 16:24:13,918 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-03-16 16:24:13,920 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-03-16 16:24:13,920 INFO L271 PluginConnector]: Initializing CDTParser... [2022-03-16 16:24:13,922 INFO L275 PluginConnector]: CDTParser initialized [2022-03-16 16:24:13,923 INFO L432 ainManager$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 [2022-03-16 16:24:13,981 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d7799892b/e83d4ce232694a279e5d9743d930bf27/FLAG2c3ab6092 [2022-03-16 16:24:14,388 INFO L306 CDTParser]: Found 1 translation units. [2022-03-16 16:24:14,388 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_41-traces-ex-7_unknown_1_pos.i [2022-03-16 16:24:14,411 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d7799892b/e83d4ce232694a279e5d9743d930bf27/FLAG2c3ab6092 [2022-03-16 16:24:14,765 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d7799892b/e83d4ce232694a279e5d9743d930bf27 [2022-03-16 16:24:14,768 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-03-16 16:24:14,770 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-03-16 16:24:14,777 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-03-16 16:24:14,777 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-03-16 16:24:14,780 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-03-16 16:24:14,781 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.03 04:24:14" (1/1) ... [2022-03-16 16:24:14,782 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3686e03e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 04:24:14, skipping insertion in model container [2022-03-16 16:24:14,782 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.03 04:24:14" (1/1) ... [2022-03-16 16:24:14,792 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-03-16 16:24:14,847 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-03-16 16:24:15,047 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] [2022-03-16 16:24:15,229 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-03-16 16:24:15,243 INFO L203 MainTranslator]: Completed pre-run [2022-03-16 16:24:15,256 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] [2022-03-16 16:24:15,285 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-03-16 16:24:15,327 INFO L208 MainTranslator]: Completed translation [2022-03-16 16:24:15,328 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 04:24:15 WrapperNode [2022-03-16 16:24:15,328 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-03-16 16:24:15,330 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-03-16 16:24:15,330 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-03-16 16:24:15,330 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-03-16 16:24:15,338 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 04:24:15" (1/1) ... [2022-03-16 16:24:15,368 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 04:24:15" (1/1) ... [2022-03-16 16:24:15,390 INFO L137 Inliner]: procedures = 162, calls = 28, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 48 [2022-03-16 16:24:15,390 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-03-16 16:24:15,391 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-03-16 16:24:15,392 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-03-16 16:24:15,392 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-03-16 16:24:15,398 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 04:24:15" (1/1) ... [2022-03-16 16:24:15,399 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 04:24:15" (1/1) ... [2022-03-16 16:24:15,405 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 04:24:15" (1/1) ... [2022-03-16 16:24:15,406 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 04:24:15" (1/1) ... [2022-03-16 16:24:15,420 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 04:24:15" (1/1) ... [2022-03-16 16:24:15,422 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 04:24:15" (1/1) ... [2022-03-16 16:24:15,423 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 04:24:15" (1/1) ... [2022-03-16 16:24:15,425 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-03-16 16:24:15,426 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-03-16 16:24:15,426 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-03-16 16:24:15,426 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-03-16 16:24:15,427 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 04:24:15" (1/1) ... [2022-03-16 16:24:15,441 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-16 16:24:15,450 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-16 16:24:15,463 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) [2022-03-16 16:24:15,471 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 [2022-03-16 16:24:15,496 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-03-16 16:24:15,497 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-03-16 16:24:15,497 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-03-16 16:24:15,497 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-03-16 16:24:15,497 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2022-03-16 16:24:15,497 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2022-03-16 16:24:15,497 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-03-16 16:24:15,497 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-03-16 16:24:15,497 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-03-16 16:24:15,497 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-03-16 16:24:15,499 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-03-16 16:24:15,590 INFO L234 CfgBuilder]: Building ICFG [2022-03-16 16:24:15,592 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-03-16 16:24:15,715 INFO L275 CfgBuilder]: Performing block encoding [2022-03-16 16:24:15,722 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-03-16 16:24:15,723 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-03-16 16:24:15,725 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.03 04:24:15 BoogieIcfgContainer [2022-03-16 16:24:15,725 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-03-16 16:24:15,727 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-03-16 16:24:15,727 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-03-16 16:24:15,732 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-03-16 16:24:15,733 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.03 04:24:14" (1/3) ... [2022-03-16 16:24:15,734 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1560c07d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.03 04:24:15, skipping insertion in model container [2022-03-16 16:24:15,734 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 04:24:15" (2/3) ... [2022-03-16 16:24:15,734 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1560c07d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.03 04:24:15, skipping insertion in model container [2022-03-16 16:24:15,734 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.03 04:24:15" (3/3) ... [2022-03-16 16:24:15,736 INFO L111 eAbstractionObserver]: Analyzing ICFG 13-privatized_41-traces-ex-7_unknown_1_pos.i [2022-03-16 16:24:15,742 WARN L150 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-03-16 16:24:15,743 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-03-16 16:24:15,743 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-03-16 16:24:15,743 INFO L534 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-03-16 16:24:15,777 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-16 16:24:15,777 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-16 16:24:15,778 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-16 16:24:15,778 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-16 16:24:15,778 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-16 16:24:15,779 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-16 16:24:15,779 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-16 16:24:15,779 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-16 16:24:15,779 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-16 16:24:15,780 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-16 16:24:15,780 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-16 16:24:15,781 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-16 16:24:15,781 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-16 16:24:15,781 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-16 16:24:15,782 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-16 16:24:15,782 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-16 16:24:15,783 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-16 16:24:15,783 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-16 16:24:15,783 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-16 16:24:15,783 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-16 16:24:15,788 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-16 16:24:15,788 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-16 16:24:15,788 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-16 16:24:15,788 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-16 16:24:15,789 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-16 16:24:15,789 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-16 16:24:15,791 INFO L148 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-03-16 16:24:15,830 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-03-16 16:24:15,830 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-16 16:24:15,833 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) [2022-03-16 16:24:15,878 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 [2022-03-16 16:24:15,922 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-03-16 16:24:15,932 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, mMcrOptimizeForkJoin=true, mMcrOverapproximateWrwc=true [2022-03-16 16:24:15,933 INFO L340 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-03-16 16:24:16,180 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 58 transitions and produced 59 states. [2022-03-16 16:24:16,183 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-03-16 16:24:16,192 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-16 16:24:16,192 INFO L85 PathProgramCache]: Analyzing trace with hash 1593244809, now seen corresponding path program 1 times [2022-03-16 16:24:16,203 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-16 16:24:16,203 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2004030203] [2022-03-16 16:24:16,204 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-16 16:24:16,204 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-16 16:24:16,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-16 16:24:16,569 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-16 16:24:16,570 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-16 16:24:16,570 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2004030203] [2022-03-16 16:24:16,571 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2004030203] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-16 16:24:16,571 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-16 16:24:16,572 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-16 16:24:16,573 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [848792846] [2022-03-16 16:24:16,574 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-16 16:24:16,578 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-16 16:24:16,579 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-16 16:24:16,611 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-16 16:24:16,613 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-16 16:24:16,614 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-16 16:24:16,616 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-16 16:24:16,617 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) [2022-03-16 16:24:16,617 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-16 16:24:27,114 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 2228 transitions and produced 2229 states. [2022-03-16 16:24:27,115 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-03-16 16:24:27,116 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-03-16 16:24:27,117 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-03-16 16:24:27,118 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-16 16:24:27,119 INFO L85 PathProgramCache]: Analyzing trace with hash 1362363078, now seen corresponding path program 1 times [2022-03-16 16:24:27,119 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-16 16:24:27,119 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [175081938] [2022-03-16 16:24:27,119 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-16 16:24:27,120 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-16 16:24:27,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-16 16:24:27,292 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-16 16:24:27,293 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-16 16:24:27,293 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [175081938] [2022-03-16 16:24:27,293 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [175081938] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-16 16:24:27,293 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-16 16:24:27,293 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-03-16 16:24:27,294 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [36071185] [2022-03-16 16:24:27,294 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-16 16:24:27,295 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-03-16 16:24:27,296 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-16 16:24:27,296 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-03-16 16:24:27,296 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-16 16:24:27,297 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-16 16:24:27,297 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-16 16:24:27,297 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) [2022-03-16 16:24:27,297 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2022-03-16 16:24:27,297 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-16 16:24:30,264 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 1052 transitions and produced 1053 states. [2022-03-16 16:24:30,264 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-03-16 16:24:30,265 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-16 16:24:30,265 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-03-16 16:24:30,266 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-03-16 16:24:30,266 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-16 16:24:30,266 INFO L85 PathProgramCache]: Analyzing trace with hash -2093588025, now seen corresponding path program 1 times [2022-03-16 16:24:30,267 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-16 16:24:30,267 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [771546458] [2022-03-16 16:24:30,267 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-16 16:24:30,267 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-16 16:24:30,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-16 16:24:30,371 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-16 16:24:30,372 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-16 16:24:30,372 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [771546458] [2022-03-16 16:24:30,372 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [771546458] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-16 16:24:30,372 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-16 16:24:30,372 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-03-16 16:24:30,373 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [223228684] [2022-03-16 16:24:30,373 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-16 16:24:30,373 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-03-16 16:24:30,374 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-16 16:24:30,374 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-03-16 16:24:30,374 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-03-16 16:24:30,375 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-16 16:24:30,375 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-16 16:24:30,375 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) [2022-03-16 16:24:30,375 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2022-03-16 16:24:30,375 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-03-16 16:24:30,375 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-16 16:24:31,355 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 328 transitions and produced 329 states. [2022-03-16 16:24:31,355 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-03-16 16:24:31,355 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-16 16:24:31,356 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-03-16 16:24:31,356 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-03-16 16:24:31,356 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-03-16 16:24:31,357 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-16 16:24:31,357 INFO L85 PathProgramCache]: Analyzing trace with hash 401446305, now seen corresponding path program 2 times [2022-03-16 16:24:31,357 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-16 16:24:31,358 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1502928756] [2022-03-16 16:24:31,358 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-16 16:24:31,358 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-16 16:24:31,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-16 16:24:31,466 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-16 16:24:31,467 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-16 16:24:31,467 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1502928756] [2022-03-16 16:24:31,467 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1502928756] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-16 16:24:31,468 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-16 16:24:31,468 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-03-16 16:24:31,468 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [329720457] [2022-03-16 16:24:31,468 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-16 16:24:31,469 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-03-16 16:24:31,469 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-16 16:24:31,469 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-03-16 16:24:31,470 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-16 16:24:31,470 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-16 16:24:31,470 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-16 16:24:31,470 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) [2022-03-16 16:24:31,470 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2022-03-16 16:24:31,470 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-03-16 16:24:31,471 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-03-16 16:24:31,471 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-16 16:24:34,191 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 910 transitions and produced 911 states. [2022-03-16 16:24:34,191 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-03-16 16:24:34,191 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-16 16:24:34,191 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-03-16 16:24:34,192 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-16 16:24:34,192 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-03-16 16:24:34,192 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-03-16 16:24:34,193 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-16 16:24:34,193 INFO L85 PathProgramCache]: Analyzing trace with hash -1452136571, now seen corresponding path program 1 times [2022-03-16 16:24:34,193 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-16 16:24:34,193 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2055699202] [2022-03-16 16:24:34,194 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-16 16:24:34,194 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-16 16:24:34,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-03-16 16:24:34,223 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-03-16 16:24:34,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-03-16 16:24:34,273 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-03-16 16:24:34,273 INFO L628 BasicCegarLoop]: Counterexample is feasible [2022-03-16 16:24:34,274 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 2 remaining) [2022-03-16 16:24:34,277 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATION (0 of 2 remaining) [2022-03-16 16:24:34,277 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-03-16 16:24:34,284 INFO L732 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1] [2022-03-16 16:24:34,288 INFO L230 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-03-16 16:24:34,288 INFO L180 ceAbstractionStarter]: Computing trace abstraction results [2022-03-16 16:24:34,320 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.03 04:24:34 BasicIcfg [2022-03-16 16:24:34,320 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-03-16 16:24:34,321 INFO L158 Benchmark]: Toolchain (without parser) took 19551.61ms. Allocated memory was 218.1MB in the beginning and 2.9GB in the end (delta: 2.7GB). Free memory was 159.2MB in the beginning and 2.4GB in the end (delta: -2.2GB). Peak memory consumption was 477.9MB. Max. memory is 8.0GB. [2022-03-16 16:24:34,322 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 218.1MB. Free memory is still 177.5MB. There was no memory consumed. Max. memory is 8.0GB. [2022-03-16 16:24:34,322 INFO L158 Benchmark]: CACSL2BoogieTranslator took 551.75ms. Allocated memory was 218.1MB in the beginning and 321.9MB in the end (delta: 103.8MB). Free memory was 159.1MB in the beginning and 285.1MB in the end (delta: -126.0MB). Peak memory consumption was 6.3MB. Max. memory is 8.0GB. [2022-03-16 16:24:34,323 INFO L158 Benchmark]: Boogie Procedure Inliner took 60.99ms. Allocated memory is still 321.9MB. Free memory was 285.1MB in the beginning and 283.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-03-16 16:24:34,323 INFO L158 Benchmark]: Boogie Preprocessor took 33.57ms. Allocated memory is still 321.9MB. Free memory was 283.0MB in the beginning and 282.0MB in the end (delta: 1.0MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-03-16 16:24:34,324 INFO L158 Benchmark]: RCFGBuilder took 299.33ms. Allocated memory is still 321.9MB. Free memory was 281.4MB in the beginning and 268.9MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. [2022-03-16 16:24:34,324 INFO L158 Benchmark]: TraceAbstraction took 18593.34ms. Allocated memory was 321.9MB in the beginning and 2.9GB in the end (delta: 2.6GB). Free memory was 268.3MB in the beginning and 2.4GB in the end (delta: -2.1GB). Peak memory consumption was 483.4MB. Max. memory is 8.0GB. [2022-03-16 16:24:34,326 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11ms. Allocated memory is still 218.1MB. Free memory is still 177.5MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 551.75ms. Allocated memory was 218.1MB in the beginning and 321.9MB in the end (delta: 103.8MB). Free memory was 159.1MB in the beginning and 285.1MB in the end (delta: -126.0MB). Peak memory consumption was 6.3MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 60.99ms. Allocated memory is still 321.9MB. Free memory was 285.1MB in the beginning and 283.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 33.57ms. Allocated memory is still 321.9MB. Free memory was 283.0MB in the beginning and 282.0MB in the end (delta: 1.0MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 299.33ms. Allocated memory is still 321.9MB. Free memory was 281.4MB in the beginning and 268.9MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. * TraceAbstraction took 18593.34ms. Allocated memory was 321.9MB in the beginning and 2.9GB in the end (delta: 2.6GB). Free memory was 268.3MB in the beginning and 2.4GB in the end (delta: -2.1GB). Peak memory consumption was 483.4MB. 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: 18.5s, OverallIterations: 5, TraceHistogramMax: 0, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 17.4s, 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, 0.5s 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! [2022-03-16 16:24:34,361 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 [2022-03-16 16:24:34,579 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request...