/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-MCRwithDepranks-Lazy-NoForkJoinOpt-wrwc.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-4b0ab11 [2022-03-01 20:23:35,796 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-03-01 20:23:35,798 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-03-01 20:23:35,855 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-03-01 20:23:35,857 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-03-01 20:23:35,859 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-03-01 20:23:35,860 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-03-01 20:23:35,863 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-03-01 20:23:35,864 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-03-01 20:23:35,867 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-03-01 20:23:35,868 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-03-01 20:23:35,869 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-03-01 20:23:35,869 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-03-01 20:23:35,871 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-03-01 20:23:35,872 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-03-01 20:23:35,874 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-03-01 20:23:35,874 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-03-01 20:23:35,875 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-03-01 20:23:35,876 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-03-01 20:23:35,880 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-03-01 20:23:35,881 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-03-01 20:23:35,881 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-03-01 20:23:35,882 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-03-01 20:23:35,883 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-03-01 20:23:35,889 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-03-01 20:23:35,895 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-03-01 20:23:35,896 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-03-01 20:23:35,896 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-03-01 20:23:35,897 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-MCRwithDepranks-Lazy-NoForkJoinOpt-wrwc.epf [2022-03-01 20:23:35,920 INFO L113 SettingsManager]: Loading preferences was successful [2022-03-01 20:23:35,921 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-03-01 20:23:35,921 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-03-01 20:23:35,921 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-03-01 20:23:35,922 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-03-01 20:23:35,922 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-03-01 20:23:35,922 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-03-01 20:23:35,923 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-03-01 20:23:35,923 INFO L138 SettingsManager]: * Use SBE=true [2022-03-01 20:23:35,923 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-03-01 20:23:35,924 INFO L138 SettingsManager]: * sizeof long=4 [2022-03-01 20:23:35,924 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-03-01 20:23:35,924 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-03-01 20:23:35,924 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-03-01 20:23:35,924 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-03-01 20:23:35,924 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-03-01 20:23:35,924 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-03-01 20:23:35,924 INFO L138 SettingsManager]: * sizeof long double=12 [2022-03-01 20:23:35,925 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-03-01 20:23:35,925 INFO L138 SettingsManager]: * Use constant arrays=true [2022-03-01 20:23:35,925 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-03-01 20:23:35,925 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-03-01 20:23:35,925 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-03-01 20:23:35,925 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-03-01 20:23:35,926 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-03-01 20:23:35,927 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-01 20:23:35,927 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-03-01 20:23:35,927 INFO L138 SettingsManager]: * Construct finite automaton lazily=true [2022-03-01 20:23:35,927 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-03-01 20:23:35,927 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-03-01 20:23:35,927 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-03-01 20:23:35,927 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-03-01 20:23:35,928 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-03-01 20:23:35,928 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2022-03-01 20:23:35,928 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-03-01 20:23:35,928 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=MCR_WITH_DEPRANKS [2022-03-01 20:23:35,928 INFO L138 SettingsManager]: * MCR: Overapproximate write-read-write conflicts=false [2022-03-01 20:23:35,928 INFO L138 SettingsManager]: * MCR: Optimize fork and join=false [2022-03-01 20:23:35,928 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-03-01 20:23:36,123 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-03-01 20:23:36,172 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-03-01 20:23:36,174 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-03-01 20:23:36,175 INFO L271 PluginConnector]: Initializing CDTParser... [2022-03-01 20:23:36,179 INFO L275 PluginConnector]: CDTParser initialized [2022-03-01 20:23:36,180 INFO L432 ainManager$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 [2022-03-01 20:23:36,239 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e0629738a/81ee9331786b4f829c0d4318b107c271/FLAG874a91cfd [2022-03-01 20:23:36,613 INFO L306 CDTParser]: Found 1 translation units. [2022-03-01 20:23:36,613 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_41-traces-ex-7_unknown_1_pos.i [2022-03-01 20:23:36,644 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e0629738a/81ee9331786b4f829c0d4318b107c271/FLAG874a91cfd [2022-03-01 20:23:36,979 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e0629738a/81ee9331786b4f829c0d4318b107c271 [2022-03-01 20:23:36,981 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-03-01 20:23:36,981 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-03-01 20:23:36,982 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-03-01 20:23:36,982 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-03-01 20:23:36,986 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-03-01 20:23:36,987 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.03 08:23:36" (1/1) ... [2022-03-01 20:23:36,989 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2b4f5781 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.03 08:23:36, skipping insertion in model container [2022-03-01 20:23:36,989 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.03 08:23:36" (1/1) ... [2022-03-01 20:23:36,994 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-03-01 20:23:37,028 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-03-01 20:23:37,164 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] [2022-03-01 20:23:37,293 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-03-01 20:23:37,303 INFO L203 MainTranslator]: Completed pre-run [2022-03-01 20:23:37,311 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] [2022-03-01 20:23:37,331 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-03-01 20:23:37,356 INFO L208 MainTranslator]: Completed translation [2022-03-01 20:23:37,356 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.03 08:23:37 WrapperNode [2022-03-01 20:23:37,356 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-03-01 20:23:37,357 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-03-01 20:23:37,357 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-03-01 20:23:37,357 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-03-01 20:23:37,362 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.03 08:23:37" (1/1) ... [2022-03-01 20:23:37,378 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.03 08:23:37" (1/1) ... [2022-03-01 20:23:37,396 INFO L137 Inliner]: procedures = 162, calls = 28, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 48 [2022-03-01 20:23:37,397 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-03-01 20:23:37,397 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-03-01 20:23:37,397 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-03-01 20:23:37,398 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-03-01 20:23:37,404 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.03 08:23:37" (1/1) ... [2022-03-01 20:23:37,405 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.03 08:23:37" (1/1) ... [2022-03-01 20:23:37,408 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.03 08:23:37" (1/1) ... [2022-03-01 20:23:37,408 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.03 08:23:37" (1/1) ... [2022-03-01 20:23:37,411 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.03 08:23:37" (1/1) ... [2022-03-01 20:23:37,412 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.03 08:23:37" (1/1) ... [2022-03-01 20:23:37,418 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.03 08:23:37" (1/1) ... [2022-03-01 20:23:37,419 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-03-01 20:23:37,420 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-03-01 20:23:37,420 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-03-01 20:23:37,420 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-03-01 20:23:37,430 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.03 08:23:37" (1/1) ... [2022-03-01 20:23:37,435 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-01 20:23:37,443 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-01 20:23:37,454 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) [2022-03-01 20:23:37,459 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 [2022-03-01 20:23:37,480 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-03-01 20:23:37,480 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-03-01 20:23:37,480 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-03-01 20:23:37,480 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-03-01 20:23:37,481 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2022-03-01 20:23:37,481 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2022-03-01 20:23:37,481 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-03-01 20:23:37,481 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-03-01 20:23:37,481 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-03-01 20:23:37,481 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-03-01 20:23:37,482 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-03-01 20:23:37,581 INFO L234 CfgBuilder]: Building ICFG [2022-03-01 20:23:37,582 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-03-01 20:23:37,737 INFO L275 CfgBuilder]: Performing block encoding [2022-03-01 20:23:37,741 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-03-01 20:23:37,741 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-03-01 20:23:37,742 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.03 08:23:37 BoogieIcfgContainer [2022-03-01 20:23:37,743 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-03-01 20:23:37,744 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-03-01 20:23:37,744 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-03-01 20:23:37,761 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-03-01 20:23:37,761 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.03 08:23:36" (1/3) ... [2022-03-01 20:23:37,762 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6dc7e186 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.03 08:23:37, skipping insertion in model container [2022-03-01 20:23:37,762 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.03 08:23:37" (2/3) ... [2022-03-01 20:23:37,762 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6dc7e186 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.03 08:23:37, skipping insertion in model container [2022-03-01 20:23:37,762 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.03 08:23:37" (3/3) ... [2022-03-01 20:23:37,763 INFO L111 eAbstractionObserver]: Analyzing ICFG 13-privatized_41-traces-ex-7_unknown_1_pos.i [2022-03-01 20:23:37,767 WARN L150 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-03-01 20:23:37,767 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-03-01 20:23:37,767 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-03-01 20:23:37,767 INFO L534 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-03-01 20:23:37,802 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 20:23:37,802 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 20:23:37,802 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 20:23:37,802 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 20:23:37,802 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 20:23:37,803 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 20:23:37,803 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 20:23:37,803 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 20:23:37,803 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 20:23:37,803 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 20:23:37,803 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 20:23:37,804 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 20:23:37,804 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 20:23:37,804 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 20:23:37,804 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 20:23:37,804 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 20:23:37,805 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 20:23:37,805 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 20:23:37,805 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 20:23:37,805 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 20:23:37,807 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 20:23:37,807 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 20:23:37,807 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 20:23:37,807 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 20:23:37,808 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 20:23:37,808 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 20:23:37,809 INFO L148 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-03-01 20:23:37,838 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-03-01 20:23:37,838 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-01 20:23:37,850 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) [2022-03-01 20:23:37,851 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 [2022-03-01 20:23:37,875 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-03-01 20:23:37,881 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=false, mMcrOverapproximateWrwc=false [2022-03-01 20:23:37,881 INFO L340 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-03-01 20:23:37,935 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 58 transitions and produced 59 states. [2022-03-01 20:23:37,937 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-03-01 20:23:37,943 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 20:23:37,943 INFO L85 PathProgramCache]: Analyzing trace with hash 1593244809, now seen corresponding path program 1 times [2022-03-01 20:23:37,949 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 20:23:37,949 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1252595926] [2022-03-01 20:23:37,949 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 20:23:37,950 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 20:23:38,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 20:23:38,287 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 20:23:38,288 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 20:23:38,288 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1252595926] [2022-03-01 20:23:38,289 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1252595926] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 20:23:38,289 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 20:23:38,289 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-01 20:23:38,291 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [464139996] [2022-03-01 20:23:38,291 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 20:23:38,295 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-01 20:23:38,295 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 20:23:38,318 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-01 20:23:38,320 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-01 20:23:38,320 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-01 20:23:38,322 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-01 20:23:38,322 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) [2022-03-01 20:23:38,323 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-01 20:23:38,433 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 133 transitions and produced 99 states. [2022-03-01 20:23:38,435 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-03-01 20:23:38,435 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-03-01 20:23:38,436 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-03-01 20:23:38,436 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 20:23:38,436 INFO L85 PathProgramCache]: Analyzing trace with hash 1362363078, now seen corresponding path program 1 times [2022-03-01 20:23:38,437 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 20:23:38,437 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [421598469] [2022-03-01 20:23:38,437 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 20:23:38,437 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 20:23:38,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 20:23:38,629 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 20:23:38,629 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 20:23:38,630 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [421598469] [2022-03-01 20:23:38,630 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [421598469] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 20:23:38,630 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 20:23:38,630 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-03-01 20:23:38,630 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1990931706] [2022-03-01 20:23:38,630 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 20:23:38,633 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-03-01 20:23:38,633 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 20:23:38,634 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-03-01 20:23:38,635 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-01 20:23:38,636 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-01 20:23:38,636 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-01 20:23:38,637 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) [2022-03-01 20:23:38,637 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2022-03-01 20:23:38,637 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-01 20:23:38,751 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 176 transitions and produced 141 states. [2022-03-01 20:23:38,751 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-03-01 20:23:38,753 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-01 20:23:38,754 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-03-01 20:23:38,754 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-03-01 20:23:38,754 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 20:23:38,754 INFO L85 PathProgramCache]: Analyzing trace with hash -2093588025, now seen corresponding path program 1 times [2022-03-01 20:23:38,755 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 20:23:38,755 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [892849712] [2022-03-01 20:23:38,755 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 20:23:38,755 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 20:23:38,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 20:23:38,824 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 20:23:38,824 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 20:23:38,824 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [892849712] [2022-03-01 20:23:38,824 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [892849712] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 20:23:38,824 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 20:23:38,825 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-03-01 20:23:38,825 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [385646423] [2022-03-01 20:23:38,825 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 20:23:38,825 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-03-01 20:23:38,825 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 20:23:38,826 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-03-01 20:23:38,826 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-03-01 20:23:38,826 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-01 20:23:38,826 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-01 20:23:38,826 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) [2022-03-01 20:23:38,826 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2022-03-01 20:23:38,827 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-03-01 20:23:38,827 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-01 20:23:38,860 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 88 transitions and produced 81 states. [2022-03-01 20:23:38,860 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-03-01 20:23:38,860 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-01 20:23:38,860 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-03-01 20:23:38,861 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-03-01 20:23:38,861 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-03-01 20:23:38,861 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 20:23:38,861 INFO L85 PathProgramCache]: Analyzing trace with hash 401446305, now seen corresponding path program 2 times [2022-03-01 20:23:38,862 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 20:23:38,862 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [697379194] [2022-03-01 20:23:38,862 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 20:23:38,862 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 20:23:38,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 20:23:39,001 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 20:23:39,002 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 20:23:39,005 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [697379194] [2022-03-01 20:23:39,005 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [697379194] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 20:23:39,005 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 20:23:39,005 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-03-01 20:23:39,006 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [907627878] [2022-03-01 20:23:39,006 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 20:23:39,007 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-03-01 20:23:39,007 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 20:23:39,007 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-03-01 20:23:39,007 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-01 20:23:39,008 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-01 20:23:39,008 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-01 20:23:39,008 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) [2022-03-01 20:23:39,008 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2022-03-01 20:23:39,008 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-03-01 20:23:39,008 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-03-01 20:23:39,008 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-01 20:23:39,062 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 130 transitions and produced 108 states. [2022-03-01 20:23:39,062 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-03-01 20:23:39,063 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-01 20:23:39,063 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-03-01 20:23:39,063 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-01 20:23:39,063 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-03-01 20:23:39,063 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-03-01 20:23:39,064 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 20:23:39,064 INFO L85 PathProgramCache]: Analyzing trace with hash -1452136571, now seen corresponding path program 1 times [2022-03-01 20:23:39,064 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 20:23:39,064 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [797291775] [2022-03-01 20:23:39,064 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 20:23:39,064 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 20:23:39,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-03-01 20:23:39,081 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-03-01 20:23:39,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-03-01 20:23:39,106 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-03-01 20:23:39,106 INFO L628 BasicCegarLoop]: Counterexample is feasible [2022-03-01 20:23:39,107 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 2 remaining) [2022-03-01 20:23:39,108 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATION (0 of 2 remaining) [2022-03-01 20:23:39,109 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-03-01 20:23:39,113 INFO L732 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1] [2022-03-01 20:23:39,115 INFO L230 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-03-01 20:23:39,116 INFO L180 ceAbstractionStarter]: Computing trace abstraction results [2022-03-01 20:23:39,147 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.03 08:23:39 BasicIcfg [2022-03-01 20:23:39,147 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-03-01 20:23:39,149 INFO L158 Benchmark]: Toolchain (without parser) took 2165.85ms. Allocated memory was 237.0MB in the beginning and 323.0MB in the end (delta: 86.0MB). Free memory was 211.6MB in the beginning and 232.0MB in the end (delta: -20.4MB). Peak memory consumption was 65.2MB. Max. memory is 8.0GB. [2022-03-01 20:23:39,149 INFO L158 Benchmark]: CDTParser took 0.29ms. Allocated memory is still 237.0MB. Free memory is still 200.0MB. There was no memory consumed. Max. memory is 8.0GB. [2022-03-01 20:23:39,150 INFO L158 Benchmark]: CACSL2BoogieTranslator took 374.31ms. Allocated memory is still 237.0MB. Free memory was 211.3MB in the beginning and 202.2MB in the end (delta: 9.1MB). Peak memory consumption was 12.8MB. Max. memory is 8.0GB. [2022-03-01 20:23:39,150 INFO L158 Benchmark]: Boogie Procedure Inliner took 39.57ms. Allocated memory is still 237.0MB. Free memory was 202.2MB in the beginning and 200.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-03-01 20:23:39,150 INFO L158 Benchmark]: Boogie Preprocessor took 22.30ms. Allocated memory is still 237.0MB. Free memory was 200.1MB in the beginning and 199.1MB in the end (delta: 1.0MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-03-01 20:23:39,152 INFO L158 Benchmark]: RCFGBuilder took 322.53ms. Allocated memory is still 237.0MB. Free memory was 199.1MB in the beginning and 187.0MB in the end (delta: 12.1MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. [2022-03-01 20:23:39,153 INFO L158 Benchmark]: TraceAbstraction took 1403.25ms. Allocated memory was 237.0MB in the beginning and 323.0MB in the end (delta: 86.0MB). Free memory was 186.5MB in the beginning and 232.0MB in the end (delta: -45.4MB). Peak memory consumption was 40.8MB. Max. memory is 8.0GB. [2022-03-01 20:23:39,154 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29ms. Allocated memory is still 237.0MB. Free memory is still 200.0MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 374.31ms. Allocated memory is still 237.0MB. Free memory was 211.3MB in the beginning and 202.2MB in the end (delta: 9.1MB). Peak memory consumption was 12.8MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 39.57ms. Allocated memory is still 237.0MB. Free memory was 202.2MB in the beginning and 200.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 22.30ms. Allocated memory is still 237.0MB. Free memory was 200.1MB in the beginning and 199.1MB in the end (delta: 1.0MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 322.53ms. Allocated memory is still 237.0MB. Free memory was 199.1MB in the beginning and 187.0MB in the end (delta: 12.1MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. * TraceAbstraction took 1403.25ms. Allocated memory was 237.0MB in the beginning and 323.0MB in the end (delta: 86.0MB). Free memory was 186.5MB in the beginning and 232.0MB in the end (delta: -45.4MB). Peak memory consumption was 40.8MB. 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: 1.3s, OverallIterations: 5, TraceHistogramMax: 0, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.4s, 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! [2022-03-01 20:23:39,176 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Ended with exit code 0 [2022-03-01 20:23:39,391 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...