/usr/bin/java -Xmx16000000000 -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-FA-NoLbe-Separate.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/goblint-regression/13-privatized_67-pthread_cond_wait_unknown_1_pos.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-bc79526 [2022-01-18 09:59:44,641 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-18 09:59:44,643 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-18 09:59:44,673 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-01-18 09:59:44,697 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-01-18 09:59:44,698 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-01-18 09:59:44,698 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-01-18 09:59:44,699 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-01-18 09:59:44,700 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-01-18 09:59:44,701 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-01-18 09:59:44,702 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-01-18 09:59:44,704 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-01-18 09:59:44,705 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-01-18 09:59:44,708 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-01-18 09:59:44,709 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-01-18 09:59:44,710 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-01-18 09:59:44,712 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-01-18 09:59:44,724 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-18 09:59:44,724 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-18 09:59:44,725 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-18 09:59:44,730 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-FA-NoLbe-Separate.epf [2022-01-18 09:59:44,754 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-18 09:59:44,754 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-18 09:59:44,754 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-01-18 09:59:44,754 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-01-18 09:59:44,755 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-01-18 09:59:44,755 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-01-18 09:59:44,756 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-01-18 09:59:44,756 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-01-18 09:59:44,756 INFO L138 SettingsManager]: * Use SBE=true [2022-01-18 09:59:44,756 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-18 09:59:44,756 INFO L138 SettingsManager]: * sizeof long=4 [2022-01-18 09:59:44,756 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-18 09:59:44,756 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-01-18 09:59:44,756 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-18 09:59:44,757 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-18 09:59:44,757 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-18 09:59:44,757 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-18 09:59:44,757 INFO L138 SettingsManager]: * sizeof long double=12 [2022-01-18 09:59:44,757 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-18 09:59:44,757 INFO L138 SettingsManager]: * Use constant arrays=true [2022-01-18 09:59:44,757 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-18 09:59:44,758 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-18 09:59:44,758 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-18 09:59:44,758 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-01-18 09:59:44,758 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-18 09:59:44,758 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-18 09:59:44,758 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-18 09:59:44,758 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-01-18 09:59:44,758 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-01-18 09:59:44,759 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-01-18 09:59:44,759 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-01-18 09:59:44,759 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-01-18 09:59:44,759 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-01-18 09:59:44,759 INFO L138 SettingsManager]: * Check the insufficient thread errors last=true [2022-01-18 09:59:44,759 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-01-18 09:59:44,993 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-18 09:59:45,010 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-18 09:59:45,012 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-18 09:59:45,013 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-18 09:59:45,019 INFO L275 PluginConnector]: CDTParser initialized [2022-01-18 09:59:45,021 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/13-privatized_67-pthread_cond_wait_unknown_1_pos.i [2022-01-18 09:59:45,081 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6cb0310a7/31cc33671a784eae838d047b6716f724/FLAG15807c5ce [2022-01-18 09:59:45,547 INFO L306 CDTParser]: Found 1 translation units. [2022-01-18 09:59:45,547 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_67-pthread_cond_wait_unknown_1_pos.i [2022-01-18 09:59:45,561 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6cb0310a7/31cc33671a784eae838d047b6716f724/FLAG15807c5ce [2022-01-18 09:59:45,853 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6cb0310a7/31cc33671a784eae838d047b6716f724 [2022-01-18 09:59:45,865 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-18 09:59:45,866 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-01-18 09:59:45,867 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-18 09:59:45,867 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-18 09:59:45,870 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-18 09:59:45,871 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.01 09:59:45" (1/1) ... [2022-01-18 09:59:45,872 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7784708a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 09:59:45, skipping insertion in model container [2022-01-18 09:59:45,872 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.01 09:59:45" (1/1) ... [2022-01-18 09:59:45,880 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-18 09:59:45,931 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-18 09:59:46,095 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_67-pthread_cond_wait_unknown_1_pos.i[1103,1116] [2022-01-18 09:59:46,363 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-18 09:59:46,373 INFO L203 MainTranslator]: Completed pre-run [2022-01-18 09:59:46,385 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_67-pthread_cond_wait_unknown_1_pos.i[1103,1116] [2022-01-18 09:59:46,427 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-18 09:59:46,484 INFO L208 MainTranslator]: Completed translation [2022-01-18 09:59:46,485 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 09:59:46 WrapperNode [2022-01-18 09:59:46,485 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-18 09:59:46,486 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-01-18 09:59:46,486 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-01-18 09:59:46,486 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-01-18 09:59:46,492 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 09:59:46" (1/1) ... [2022-01-18 09:59:46,511 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 09:59:46" (1/1) ... [2022-01-18 09:59:46,535 INFO L137 Inliner]: procedures = 354, calls = 39, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 75 [2022-01-18 09:59:46,536 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-01-18 09:59:46,536 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-18 09:59:46,537 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-18 09:59:46,537 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-18 09:59:46,543 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 09:59:46" (1/1) ... [2022-01-18 09:59:46,544 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 09:59:46" (1/1) ... [2022-01-18 09:59:46,548 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 09:59:46" (1/1) ... [2022-01-18 09:59:46,548 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 09:59:46" (1/1) ... [2022-01-18 09:59:46,559 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 09:59:46" (1/1) ... [2022-01-18 09:59:46,560 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 09:59:46" (1/1) ... [2022-01-18 09:59:46,564 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 09:59:46" (1/1) ... [2022-01-18 09:59:46,569 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-18 09:59:46,570 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-18 09:59:46,570 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-18 09:59:46,570 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-18 09:59:46,572 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 09:59:46" (1/1) ... [2022-01-18 09:59:46,590 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-18 09:59:46,606 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-18 09:59:46,618 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) [2022-01-18 09:59:46,626 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 [2022-01-18 09:59:46,652 INFO L130 BoogieDeclarations]: Found specification of procedure sleep [2022-01-18 09:59:46,652 INFO L130 BoogieDeclarations]: Found specification of procedure f1 [2022-01-18 09:59:46,652 INFO L138 BoogieDeclarations]: Found implementation of procedure f1 [2022-01-18 09:59:46,652 INFO L130 BoogieDeclarations]: Found specification of procedure f2 [2022-01-18 09:59:46,652 INFO L138 BoogieDeclarations]: Found implementation of procedure f2 [2022-01-18 09:59:46,652 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-01-18 09:59:46,653 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-01-18 09:59:46,653 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-01-18 09:59:46,653 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-01-18 09:59:46,653 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-01-18 09:59:46,653 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-18 09:59:46,653 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-01-18 09:59:46,653 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-18 09:59:46,653 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-18 09:59:46,655 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-01-18 09:59:46,871 INFO L234 CfgBuilder]: Building ICFG [2022-01-18 09:59:46,872 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-18 09:59:47,042 INFO L275 CfgBuilder]: Performing block encoding [2022-01-18 09:59:47,049 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-18 09:59:47,049 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-01-18 09:59:47,051 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.01 09:59:47 BoogieIcfgContainer [2022-01-18 09:59:47,051 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-18 09:59:47,052 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-18 09:59:47,053 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-18 09:59:47,056 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-18 09:59:47,056 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.01 09:59:45" (1/3) ... [2022-01-18 09:59:47,057 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6c9e45d4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.01 09:59:47, skipping insertion in model container [2022-01-18 09:59:47,057 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 09:59:46" (2/3) ... [2022-01-18 09:59:47,057 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6c9e45d4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.01 09:59:47, skipping insertion in model container [2022-01-18 09:59:47,058 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.01 09:59:47" (3/3) ... [2022-01-18 09:59:47,059 INFO L111 eAbstractionObserver]: Analyzing ICFG 13-privatized_67-pthread_cond_wait_unknown_1_pos.i [2022-01-18 09:59:47,063 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-01-18 09:59:47,064 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-01-18 09:59:47,064 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-01-18 09:59:47,064 INFO L513 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-01-18 09:59:47,092 WARN L322 ript$VariableManager]: TermVariabe |f1Thread1of1ForFork1_#in~ptr.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:59:47,092 WARN L322 ript$VariableManager]: TermVariabe |f1Thread1of1ForFork1_#in~ptr.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:59:47,093 WARN L322 ript$VariableManager]: TermVariabe f1Thread1of1ForFork1_~ptr.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:59:47,093 WARN L322 ript$VariableManager]: TermVariabe f1Thread1of1ForFork1_~ptr.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:59:47,093 WARN L322 ript$VariableManager]: TermVariabe |f1Thread1of1ForFork1_#in~ptr.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:59:47,093 WARN L322 ript$VariableManager]: TermVariabe |f1Thread1of1ForFork1_#in~ptr.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:59:47,093 WARN L322 ript$VariableManager]: TermVariabe f1Thread1of1ForFork1_~ptr.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:59:47,093 WARN L322 ript$VariableManager]: TermVariabe f1Thread1of1ForFork1_~ptr.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:59:47,094 WARN L322 ript$VariableManager]: TermVariabe |f1Thread1of1ForFork1_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:59:47,094 WARN L322 ript$VariableManager]: TermVariabe |f1Thread1of1ForFork1_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:59:47,094 WARN L322 ript$VariableManager]: TermVariabe |f1Thread1of1ForFork1_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:59:47,094 WARN L322 ript$VariableManager]: TermVariabe |f1Thread1of1ForFork1_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:59:47,095 WARN L322 ript$VariableManager]: TermVariabe |f1Thread1of1ForFork1_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:59:47,095 WARN L322 ript$VariableManager]: TermVariabe |f1Thread1of1ForFork1_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:59:47,095 WARN L322 ript$VariableManager]: TermVariabe |f1Thread1of1ForFork1_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:59:47,095 WARN L322 ript$VariableManager]: TermVariabe |f1Thread1of1ForFork1_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:59:47,096 WARN L322 ript$VariableManager]: TermVariabe |f1Thread1of1ForFork1_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:59:47,096 WARN L322 ript$VariableManager]: TermVariabe |f1Thread1of1ForFork1_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:59:47,096 WARN L322 ript$VariableManager]: TermVariabe |f1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:59:47,096 WARN L322 ript$VariableManager]: TermVariabe |f1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:59:47,097 WARN L322 ript$VariableManager]: TermVariabe |f1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:59:47,097 WARN L322 ript$VariableManager]: TermVariabe |f1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:59:47,097 WARN L322 ript$VariableManager]: TermVariabe |f2Thread1of1ForFork0_#in~ptr#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:59:47,097 WARN L322 ript$VariableManager]: TermVariabe |f2Thread1of1ForFork0_#in~ptr#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:59:47,098 WARN L322 ript$VariableManager]: TermVariabe |f2Thread1of1ForFork0_~ptr#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:59:47,098 WARN L322 ript$VariableManager]: TermVariabe |f2Thread1of1ForFork0_~ptr#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:59:47,098 WARN L322 ript$VariableManager]: TermVariabe |f2Thread1of1ForFork0_#in~ptr#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:59:47,098 WARN L322 ript$VariableManager]: TermVariabe |f2Thread1of1ForFork0_#in~ptr#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:59:47,098 WARN L322 ript$VariableManager]: TermVariabe |f2Thread1of1ForFork0_~ptr#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:59:47,098 WARN L322 ript$VariableManager]: TermVariabe |f2Thread1of1ForFork0_~ptr#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:59:47,099 WARN L322 ript$VariableManager]: TermVariabe |f2Thread1of1ForFork0_#t~nondet7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:59:47,099 WARN L322 ript$VariableManager]: TermVariabe |f2Thread1of1ForFork0_#t~nondet7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:59:47,099 WARN L322 ript$VariableManager]: TermVariabe |f2Thread1of1ForFork0_#t~nondet7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:59:47,099 WARN L322 ript$VariableManager]: TermVariabe |f2Thread1of1ForFork0_#t~nondet7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:59:47,100 WARN L322 ript$VariableManager]: TermVariabe |f2Thread1of1ForFork0___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:59:47,100 WARN L322 ript$VariableManager]: TermVariabe |f2Thread1of1ForFork0___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:59:47,100 WARN L322 ript$VariableManager]: TermVariabe |f2Thread1of1ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:59:47,100 WARN L322 ript$VariableManager]: TermVariabe |f2Thread1of1ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:59:47,100 WARN L322 ript$VariableManager]: TermVariabe |f2Thread1of1ForFork0___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:59:47,101 WARN L322 ript$VariableManager]: TermVariabe |f2Thread1of1ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:59:47,101 WARN L322 ript$VariableManager]: TermVariabe |f2Thread1of1ForFork0___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:59:47,101 WARN L322 ript$VariableManager]: TermVariabe |f2Thread1of1ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:59:47,101 WARN L322 ript$VariableManager]: TermVariabe |f2Thread1of1ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:59:47,101 WARN L322 ript$VariableManager]: TermVariabe |f2Thread1of1ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:59:47,101 WARN L322 ript$VariableManager]: TermVariabe |f2Thread1of1ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:59:47,102 WARN L322 ript$VariableManager]: TermVariabe |f2Thread1of1ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:59:47,102 WARN L322 ript$VariableManager]: TermVariabe |f2Thread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:59:47,102 WARN L322 ript$VariableManager]: TermVariabe |f2Thread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:59:47,102 WARN L322 ript$VariableManager]: TermVariabe |f2Thread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:59:47,103 WARN L322 ript$VariableManager]: TermVariabe |f2Thread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:59:47,106 WARN L322 ript$VariableManager]: TermVariabe |f2Thread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:59:47,106 WARN L322 ript$VariableManager]: TermVariabe |f2Thread1of1ForFork0___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:59:47,106 WARN L322 ript$VariableManager]: TermVariabe |f2Thread1of1ForFork0_~ptr#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:59:47,106 WARN L322 ript$VariableManager]: TermVariabe |f2Thread1of1ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:59:47,106 WARN L322 ript$VariableManager]: TermVariabe |f2Thread1of1ForFork0_~ptr#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:59:47,107 WARN L322 ript$VariableManager]: TermVariabe |f2Thread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:59:47,107 WARN L322 ript$VariableManager]: TermVariabe |f2Thread1of1ForFork0_#t~nondet7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:59:47,109 WARN L322 ript$VariableManager]: TermVariabe |f1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:59:47,109 WARN L322 ript$VariableManager]: TermVariabe |f1Thread1of1ForFork1_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:59:47,109 WARN L322 ript$VariableManager]: TermVariabe |f1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:59:47,109 WARN L322 ript$VariableManager]: TermVariabe f1Thread1of1ForFork1_~ptr.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:59:47,110 WARN L322 ript$VariableManager]: TermVariabe |f1Thread1of1ForFork1_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:59:47,110 WARN L322 ript$VariableManager]: TermVariabe |f1Thread1of1ForFork1_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:59:47,110 WARN L322 ript$VariableManager]: TermVariabe f1Thread1of1ForFork1_~ptr.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:59:47,113 INFO L148 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-01-18 09:59:47,147 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-18 09:59:47,153 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=FINITE_AUTOMATA, 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 [2022-01-18 09:59:47,153 INFO L340 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2022-01-18 09:59:47,168 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 101 places, 95 transitions, 206 flow [2022-01-18 09:59:47,256 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 694 states, 693 states have (on average 2.3593073593073592) internal successors, (1635), 693 states have internal predecessors, (1635), 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) [2022-01-18 09:59:47,260 INFO L276 IsEmpty]: Start isEmpty. Operand has 694 states, 693 states have (on average 2.3593073593073592) internal successors, (1635), 693 states have internal predecessors, (1635), 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) [2022-01-18 09:59:47,272 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2022-01-18 09:59:47,273 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:59:47,274 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:59:47,274 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting f2Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, f2Err0ASSERT_VIOLATIONERROR_FUNCTION, f2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-18 09:59:47,279 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:59:47,279 INFO L85 PathProgramCache]: Analyzing trace with hash -1499020934, now seen corresponding path program 1 times [2022-01-18 09:59:47,286 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:59:47,287 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1041756531] [2022-01-18 09:59:47,287 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:59:47,288 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:59:47,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:59:47,832 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:59:47,833 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:59:47,834 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1041756531] [2022-01-18 09:59:47,834 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1041756531] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:59:47,835 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:59:47,835 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-18 09:59:47,837 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1969279552] [2022-01-18 09:59:47,840 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:59:47,849 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-18 09:59:47,850 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:59:47,879 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-18 09:59:47,881 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-18 09:59:47,885 INFO L87 Difference]: Start difference. First operand has 694 states, 693 states have (on average 2.3593073593073592) internal successors, (1635), 693 states have internal predecessors, (1635), 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) Second operand has 5 states, 5 states have (on average 11.4) internal successors, (57), 5 states have internal predecessors, (57), 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) [2022-01-18 09:59:48,008 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:59:48,009 INFO L93 Difference]: Finished difference Result 779 states and 1811 transitions. [2022-01-18 09:59:48,010 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-01-18 09:59:48,011 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.4) internal successors, (57), 5 states have internal predecessors, (57), 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) Word has length 57 [2022-01-18 09:59:48,012 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:59:48,027 INFO L225 Difference]: With dead ends: 779 [2022-01-18 09:59:48,027 INFO L226 Difference]: Without dead ends: 487 [2022-01-18 09:59:48,029 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-01-18 09:59:48,038 INFO L933 BasicCegarLoop]: 106 mSDtfsCounter, 63 mSDsluCounter, 211 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 63 SdHoareTripleChecker+Valid, 311 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 09:59:48,040 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [63 Valid, 311 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 09:59:48,058 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 487 states. [2022-01-18 09:59:48,119 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 487 to 487. [2022-01-18 09:59:48,121 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 487 states, 486 states have (on average 2.265432098765432) internal successors, (1101), 486 states have internal predecessors, (1101), 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) [2022-01-18 09:59:48,123 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 487 states to 487 states and 1101 transitions. [2022-01-18 09:59:48,124 INFO L78 Accepts]: Start accepts. Automaton has 487 states and 1101 transitions. Word has length 57 [2022-01-18 09:59:48,125 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:59:48,125 INFO L470 AbstractCegarLoop]: Abstraction has 487 states and 1101 transitions. [2022-01-18 09:59:48,125 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.4) internal successors, (57), 5 states have internal predecessors, (57), 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) [2022-01-18 09:59:48,125 INFO L276 IsEmpty]: Start isEmpty. Operand 487 states and 1101 transitions. [2022-01-18 09:59:48,129 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2022-01-18 09:59:48,129 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:59:48,129 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:59:48,129 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-01-18 09:59:48,130 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting f2Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, f2Err0ASSERT_VIOLATIONERROR_FUNCTION, f2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-18 09:59:48,130 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:59:48,130 INFO L85 PathProgramCache]: Analyzing trace with hash 1684441592, now seen corresponding path program 1 times [2022-01-18 09:59:48,131 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:59:48,131 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1301151486] [2022-01-18 09:59:48,131 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:59:48,131 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:59:48,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:59:48,297 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:59:48,298 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:59:48,298 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1301151486] [2022-01-18 09:59:48,298 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1301151486] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:59:48,298 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:59:48,299 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-18 09:59:48,299 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [943106047] [2022-01-18 09:59:48,299 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:59:48,301 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-01-18 09:59:48,301 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:59:48,302 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-01-18 09:59:48,303 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-01-18 09:59:48,303 INFO L87 Difference]: Start difference. First operand 487 states and 1101 transitions. Second operand has 7 states, 7 states have (on average 8.714285714285714) internal successors, (61), 7 states have internal predecessors, (61), 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) [2022-01-18 09:59:48,401 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:59:48,401 INFO L93 Difference]: Finished difference Result 240 states and 440 transitions. [2022-01-18 09:59:48,402 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-18 09:59:48,402 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.714285714285714) internal successors, (61), 7 states have internal predecessors, (61), 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) Word has length 61 [2022-01-18 09:59:48,402 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:59:48,405 INFO L225 Difference]: With dead ends: 240 [2022-01-18 09:59:48,405 INFO L226 Difference]: Without dead ends: 168 [2022-01-18 09:59:48,407 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-01-18 09:59:48,409 INFO L933 BasicCegarLoop]: 88 mSDtfsCounter, 98 mSDsluCounter, 319 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 98 SdHoareTripleChecker+Valid, 399 SdHoareTripleChecker+Invalid, 57 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-18 09:59:48,410 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [98 Valid, 399 Invalid, 57 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-18 09:59:48,413 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 168 states. [2022-01-18 09:59:48,422 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 168 to 168. [2022-01-18 09:59:48,422 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 168 states, 167 states have (on average 1.7005988023952097) internal successors, (284), 167 states have internal predecessors, (284), 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) [2022-01-18 09:59:48,423 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 168 states to 168 states and 284 transitions. [2022-01-18 09:59:48,423 INFO L78 Accepts]: Start accepts. Automaton has 168 states and 284 transitions. Word has length 61 [2022-01-18 09:59:48,423 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:59:48,423 INFO L470 AbstractCegarLoop]: Abstraction has 168 states and 284 transitions. [2022-01-18 09:59:48,424 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.714285714285714) internal successors, (61), 7 states have internal predecessors, (61), 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) [2022-01-18 09:59:48,424 INFO L276 IsEmpty]: Start isEmpty. Operand 168 states and 284 transitions. [2022-01-18 09:59:48,425 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2022-01-18 09:59:48,425 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:59:48,425 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:59:48,426 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-01-18 09:59:48,426 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting f2Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, f2Err0ASSERT_VIOLATIONERROR_FUNCTION, f2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-18 09:59:48,426 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:59:48,426 INFO L85 PathProgramCache]: Analyzing trace with hash 1425925497, now seen corresponding path program 1 times [2022-01-18 09:59:48,426 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:59:48,427 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1746108707] [2022-01-18 09:59:48,427 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:59:48,427 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:59:48,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-01-18 09:59:48,474 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-01-18 09:59:48,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-01-18 09:59:48,514 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-01-18 09:59:48,515 INFO L628 BasicCegarLoop]: Counterexample is feasible [2022-01-18 09:59:48,515 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location f2Err0ASSERT_VIOLATIONERROR_FUNCTION (3 of 4 remaining) [2022-01-18 09:59:48,517 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATION (2 of 4 remaining) [2022-01-18 09:59:48,517 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATION (1 of 4 remaining) [2022-01-18 09:59:48,517 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONERROR_FUNCTION (0 of 4 remaining) [2022-01-18 09:59:48,517 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-01-18 09:59:48,520 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2022-01-18 09:59:48,524 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-01-18 09:59:48,524 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2022-01-18 09:59:48,586 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.01 09:59:48 BasicIcfg [2022-01-18 09:59:48,586 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-01-18 09:59:48,587 INFO L158 Benchmark]: Toolchain (without parser) took 2720.31ms. Allocated memory was 348.1MB in the beginning and 421.5MB in the end (delta: 73.4MB). Free memory was 322.1MB in the beginning and 363.2MB in the end (delta: -41.2MB). Peak memory consumption was 32.0MB. Max. memory is 16.0GB. [2022-01-18 09:59:48,587 INFO L158 Benchmark]: CDTParser took 0.20ms. Allocated memory is still 348.1MB. Free memory is still 309.2MB. There was no memory consumed. Max. memory is 16.0GB. [2022-01-18 09:59:48,587 INFO L158 Benchmark]: CACSL2BoogieTranslator took 617.67ms. Allocated memory was 348.1MB in the beginning and 421.5MB in the end (delta: 73.4MB). Free memory was 322.1MB in the beginning and 367.7MB in the end (delta: -45.6MB). Peak memory consumption was 27.3MB. Max. memory is 16.0GB. [2022-01-18 09:59:48,588 INFO L158 Benchmark]: Boogie Procedure Inliner took 50.23ms. Allocated memory is still 421.5MB. Free memory was 367.7MB in the beginning and 364.8MB in the end (delta: 2.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.0GB. [2022-01-18 09:59:48,588 INFO L158 Benchmark]: Boogie Preprocessor took 32.78ms. Allocated memory is still 421.5MB. Free memory was 364.8MB in the beginning and 362.0MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2022-01-18 09:59:48,588 INFO L158 Benchmark]: RCFGBuilder took 481.08ms. Allocated memory is still 421.5MB. Free memory was 362.0MB in the beginning and 343.9MB in the end (delta: 18.1MB). Peak memory consumption was 18.9MB. Max. memory is 16.0GB. [2022-01-18 09:59:48,589 INFO L158 Benchmark]: TraceAbstraction took 1533.61ms. Allocated memory is still 421.5MB. Free memory was 343.2MB in the beginning and 363.2MB in the end (delta: -20.1MB). There was no memory consumed. Max. memory is 16.0GB. [2022-01-18 09:59:48,593 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20ms. Allocated memory is still 348.1MB. Free memory is still 309.2MB. There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 617.67ms. Allocated memory was 348.1MB in the beginning and 421.5MB in the end (delta: 73.4MB). Free memory was 322.1MB in the beginning and 367.7MB in the end (delta: -45.6MB). Peak memory consumption was 27.3MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 50.23ms. Allocated memory is still 421.5MB. Free memory was 367.7MB in the beginning and 364.8MB in the end (delta: 2.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.0GB. * Boogie Preprocessor took 32.78ms. Allocated memory is still 421.5MB. Free memory was 364.8MB in the beginning and 362.0MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * RCFGBuilder took 481.08ms. Allocated memory is still 421.5MB. Free memory was 362.0MB in the beginning and 343.9MB in the end (delta: 18.1MB). Peak memory consumption was 18.9MB. Max. memory is 16.0GB. * TraceAbstraction took 1533.61ms. Allocated memory is still 421.5MB. Free memory was 343.2MB in the beginning and 363.2MB in the end (delta: -20.1MB). There was no memory consumed. Max. memory is 16.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - 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: [L1351] 0 int g; VAL [g=0] [L1352] 0 pthread_mutex_t mut = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; VAL [g=0, mut={4:0}] [L1353] 0 pthread_cond_t cond = { { {0}, {0}, {0, 0}, {0, 0}, 0, 0, {0, 0} } }; VAL [cond={5:0}, g=0, mut={4:0}] [L1373] 0 pthread_t t1; VAL [\old(argc)=1150, argc=1150, argv={1151:1152}, argv={1151:1152}, cond={5:0}, g=0, mut={4:0}, t1={7:0}] [L1374] 0 pthread_t t2; VAL [\old(argc)=1150, argc=1150, argv={1151:1152}, argv={1151:1152}, cond={5:0}, g=0, mut={4:0}, t1={7:0}, t2={6:0}] [L1375] FCALL, FORK 0 pthread_create(&t1,((void *)0),f1,((void *)0)) VAL [\old(argc)=1150, argc=1150, argv={1151:1152}, argv={1151:1152}, cond={5:0}, g=0, mut={4:0}, pthread_create(&t1,((void *)0),f1,((void *)0))=-1, ptr={0:0}, t1={7:0}, t2={6:0}] [L1356] 1 g = 1 VAL [cond={5:0}, g=1, mut={4:0}, ptr={0:0}, ptr={0:0}] [L1377] FCALL, FORK 0 pthread_create(&t2,((void *)0),f2,((void *)0)) VAL [\old(argc)=1150, argc=1150, argv={1151:1152}, argv={1151:1152}, cond={5:0}, g=1, mut={4:0}, pthread_create(&t2,((void *)0),f2,((void *)0))=0, ptr={0:0}, ptr={0:0}, t1={7:0}, t2={6:0}] [L1365] CALL 2 __VERIFIER_assert(g == 0) [L19] COND TRUE 2 !(cond) VAL [\old(cond)=0, cond={5:0}, cond=0, g=1, mut={4:0}, ptr={0:0}, ptr={0:0}] [L19] 2 reach_error() VAL [\old(cond)=0, cond={5:0}, cond=0, g=1, mut={4:0}, ptr={0:0}, ptr={0:0}] - UnprovableResult [Line: 1375]: 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. - UnprovableResult [Line: 1377]: 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 5 procedures, 127 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 1.4s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 161 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 161 mSDsluCounter, 710 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 530 mSDsCounter, 10 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 77 IncrementalHoareTripleChecker+Invalid, 87 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 10 mSolverCounterUnsat, 194 mSDtfsCounter, 77 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 18 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=694occurred in iteration=0, InterpolantAutomatonStates: 13, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 180 NumberOfCodeBlocks, 180 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 116 ConstructedInterpolants, 0 QuantifiedInterpolants, 298 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 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! [2022-01-18 09:59:48,635 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...