/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-PN-NoLbe-Before.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/goblint-regression/28-race_reach_45-escape_racing.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-bf34d27 [2022-01-19 06:03:57,097 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-19 06:03:57,099 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-19 06:03:57,141 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-01-19 06:03:57,141 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-01-19 06:03:57,144 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-01-19 06:03:57,153 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-01-19 06:03:57,165 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-01-19 06:03:57,167 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-01-19 06:03:57,171 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-01-19 06:03:57,172 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-01-19 06:03:57,173 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-01-19 06:03:57,173 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-01-19 06:03:57,175 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-01-19 06:03:57,176 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-01-19 06:03:57,179 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-01-19 06:03:57,180 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-01-19 06:03:57,180 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-01-19 06:03:57,182 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-01-19 06:03:57,187 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-01-19 06:03:57,188 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-01-19 06:03:57,189 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-01-19 06:03:57,191 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-01-19 06:03:57,191 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-01-19 06:03:57,197 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-01-19 06:03:57,205 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-19 06:03:57,206 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-19 06:03:57,206 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-19 06:03:57,207 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-PN-NoLbe-Before.epf [2022-01-19 06:03:57,244 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-19 06:03:57,244 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-19 06:03:57,245 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-01-19 06:03:57,245 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-01-19 06:03:57,246 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-01-19 06:03:57,246 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-01-19 06:03:57,246 INFO L138 SettingsManager]: * Use SBE=true [2022-01-19 06:03:57,246 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-19 06:03:57,246 INFO L138 SettingsManager]: * sizeof long=4 [2022-01-19 06:03:57,246 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-19 06:03:57,247 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-01-19 06:03:57,247 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-19 06:03:57,247 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-19 06:03:57,247 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-19 06:03:57,248 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-19 06:03:57,248 INFO L138 SettingsManager]: * sizeof long double=12 [2022-01-19 06:03:57,248 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-19 06:03:57,248 INFO L138 SettingsManager]: * Use constant arrays=true [2022-01-19 06:03:57,248 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-19 06:03:57,248 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-19 06:03:57,248 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-19 06:03:57,248 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-01-19 06:03:57,249 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-19 06:03:57,249 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-19 06:03:57,249 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-19 06:03:57,249 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-01-19 06:03:57,249 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-01-19 06:03:57,250 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-01-19 06:03:57,251 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-01-19 06:03:57,251 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-01-19 06:03:57,251 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-01-19 06:03:57,251 INFO L138 SettingsManager]: * When to check the insufficient erros location relative to the other error locations=BEFORE [2022-01-19 06:03:57,251 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-01-19 06:03:57,440 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-19 06:03:57,462 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-19 06:03:57,465 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-19 06:03:57,466 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-19 06:03:57,466 INFO L275 PluginConnector]: CDTParser initialized [2022-01-19 06:03:57,467 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/28-race_reach_45-escape_racing.i [2022-01-19 06:03:57,531 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fdb87db92/032ddb8532f444bca3f49489a422f429/FLAG44c2cde44 [2022-01-19 06:03:57,987 INFO L306 CDTParser]: Found 1 translation units. [2022-01-19 06:03:57,987 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/28-race_reach_45-escape_racing.i [2022-01-19 06:03:57,999 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fdb87db92/032ddb8532f444bca3f49489a422f429/FLAG44c2cde44 [2022-01-19 06:03:58,013 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fdb87db92/032ddb8532f444bca3f49489a422f429 [2022-01-19 06:03:58,019 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-19 06:03:58,022 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-01-19 06:03:58,025 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-19 06:03:58,026 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-19 06:03:58,029 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-19 06:03:58,030 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.01 06:03:58" (1/1) ... [2022-01-19 06:03:58,031 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@47f34c21 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 06:03:58, skipping insertion in model container [2022-01-19 06:03:58,031 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.01 06:03:58" (1/1) ... [2022-01-19 06:03:58,037 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-19 06:03:58,088 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-19 06:03:58,391 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/28-race_reach_45-escape_racing.i[30176,30189] [2022-01-19 06:03:58,414 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-19 06:03:58,425 INFO L203 MainTranslator]: Completed pre-run [2022-01-19 06:03:58,459 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/28-race_reach_45-escape_racing.i[30176,30189] [2022-01-19 06:03:58,465 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-19 06:03:58,504 INFO L208 MainTranslator]: Completed translation [2022-01-19 06:03:58,505 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 06:03:58 WrapperNode [2022-01-19 06:03:58,506 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-19 06:03:58,507 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-01-19 06:03:58,507 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-01-19 06:03:58,507 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-01-19 06:03:58,513 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 06:03:58" (1/1) ... [2022-01-19 06:03:58,545 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 06:03:58" (1/1) ... [2022-01-19 06:03:58,566 INFO L137 Inliner]: procedures = 170, calls = 45, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 70 [2022-01-19 06:03:58,567 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-01-19 06:03:58,567 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-19 06:03:58,568 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-19 06:03:58,568 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-19 06:03:58,573 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 06:03:58" (1/1) ... [2022-01-19 06:03:58,574 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 06:03:58" (1/1) ... [2022-01-19 06:03:58,583 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 06:03:58" (1/1) ... [2022-01-19 06:03:58,583 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 06:03:58" (1/1) ... [2022-01-19 06:03:58,592 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 06:03:58" (1/1) ... [2022-01-19 06:03:58,595 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 06:03:58" (1/1) ... [2022-01-19 06:03:58,596 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 06:03:58" (1/1) ... [2022-01-19 06:03:58,598 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-19 06:03:58,606 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-19 06:03:58,607 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-19 06:03:58,607 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-19 06:03:58,608 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 06:03:58" (1/1) ... [2022-01-19 06:03:58,614 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-19 06:03:58,623 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-19 06:03:58,636 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) [2022-01-19 06:03:58,664 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 [2022-01-19 06:03:58,685 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-01-19 06:03:58,685 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-01-19 06:03:58,685 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-01-19 06:03:58,685 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-19 06:03:58,685 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-01-19 06:03:58,686 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2022-01-19 06:03:58,686 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2022-01-19 06:03:58,686 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-01-19 06:03:58,686 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-01-19 06:03:58,687 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-19 06:03:58,687 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-19 06:03:58,688 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-01-19 06:03:58,841 INFO L234 CfgBuilder]: Building ICFG [2022-01-19 06:03:58,842 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-19 06:03:59,010 INFO L275 CfgBuilder]: Performing block encoding [2022-01-19 06:03:59,017 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-19 06:03:59,017 INFO L299 CfgBuilder]: Removed 8 assume(true) statements. [2022-01-19 06:03:59,018 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.01 06:03:59 BoogieIcfgContainer [2022-01-19 06:03:59,018 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-19 06:03:59,020 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-19 06:03:59,020 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-19 06:03:59,026 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-19 06:03:59,026 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.01 06:03:58" (1/3) ... [2022-01-19 06:03:59,026 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@cd08c2f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.01 06:03:59, skipping insertion in model container [2022-01-19 06:03:59,027 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 06:03:58" (2/3) ... [2022-01-19 06:03:59,027 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@cd08c2f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.01 06:03:59, skipping insertion in model container [2022-01-19 06:03:59,027 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.01 06:03:59" (3/3) ... [2022-01-19 06:03:59,028 INFO L111 eAbstractionObserver]: Analyzing ICFG 28-race_reach_45-escape_racing.i [2022-01-19 06:03:59,032 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-01-19 06:03:59,032 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-01-19 06:03:59,032 INFO L534 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-01-19 06:03:59,058 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:03:59,058 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:03:59,058 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:03:59,058 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:03:59,059 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:03:59,059 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:03:59,059 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:03:59,059 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:03:59,059 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:03:59,059 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:03:59,060 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:03:59,060 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:03:59,060 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:03:59,060 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:03:59,060 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:03:59,060 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:03:59,061 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:03:59,061 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:03:59,061 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:03:59,061 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:03:59,061 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:03:59,062 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:03:59,062 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:03:59,062 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:03:59,062 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:03:59,063 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:03:59,063 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:03:59,063 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:03:59,063 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:03:59,064 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:03:59,064 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:03:59,064 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:03:59,064 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:03:59,064 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:03:59,064 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:03:59,065 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:03:59,065 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:03:59,065 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:03:59,065 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:03:59,065 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:03:59,065 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:03:59,066 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:03:59,066 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:03:59,066 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:03:59,066 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:03:59,066 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:03:59,066 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:03:59,067 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:03:59,067 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:03:59,067 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:03:59,067 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:03:59,067 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:03:59,067 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:03:59,068 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:03:59,068 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:03:59,068 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:03:59,068 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:03:59,068 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:03:59,068 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:03:59,069 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:03:59,069 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:03:59,069 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:03:59,069 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:03:59,069 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:03:59,070 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:03:59,070 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:03:59,070 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:03:59,070 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:03:59,070 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:03:59,071 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:03:59,071 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:03:59,071 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:03:59,074 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:03:59,075 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:03:59,075 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:03:59,075 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:03:59,075 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:03:59,075 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:03:59,075 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:03:59,076 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:03:59,076 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:03:59,076 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:03:59,076 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:03:59,076 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:03:59,076 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:03:59,080 INFO L148 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2022-01-19 06:03:59,119 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-19 06:03:59,125 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=false, mAutomataTypeConcurrency=PETRI_NET, 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 [2022-01-19 06:03:59,125 INFO L340 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-01-19 06:03:59,134 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 103 places, 108 transitions, 224 flow [2022-01-19 06:03:59,170 INFO L129 PetriNetUnfolder]: 9/107 cut-off events. [2022-01-19 06:03:59,170 INFO L130 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-01-19 06:03:59,173 INFO L84 FinitePrefix]: Finished finitePrefix Result has 112 conditions, 107 events. 9/107 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 160 event pairs, 0 based on Foata normal form. 0/97 useless extension candidates. Maximal degree in co-relation 57. Up to 3 conditions per place. [2022-01-19 06:03:59,173 INFO L82 GeneralOperation]: Start removeDead. Operand has 103 places, 108 transitions, 224 flow [2022-01-19 06:03:59,177 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 92 places, 97 transitions, 197 flow [2022-01-19 06:03:59,197 INFO L129 PetriNetUnfolder]: 3/84 cut-off events. [2022-01-19 06:03:59,198 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-01-19 06:03:59,198 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 06:03:59,199 INFO L254 CegarLoopForPetriNet]: 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] [2022-01-19 06:03:59,199 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-01-19 06:03:59,203 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 06:03:59,204 INFO L85 PathProgramCache]: Analyzing trace with hash -1331683409, now seen corresponding path program 1 times [2022-01-19 06:03:59,217 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 06:03:59,218 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [814469769] [2022-01-19 06:03:59,218 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 06:03:59,219 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 06:03:59,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 06:03:59,595 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-19 06:03:59,596 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 06:03:59,596 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [814469769] [2022-01-19 06:03:59,596 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [814469769] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 06:03:59,597 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 06:03:59,597 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-01-19 06:03:59,598 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [705546263] [2022-01-19 06:03:59,599 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 06:03:59,605 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-01-19 06:03:59,606 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 06:03:59,635 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-01-19 06:03:59,637 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2022-01-19 06:03:59,643 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 52 out of 108 [2022-01-19 06:03:59,649 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 92 places, 97 transitions, 197 flow. Second operand has 9 states, 9 states have (on average 55.77777777777778) internal successors, (502), 9 states have internal predecessors, (502), 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) [2022-01-19 06:03:59,650 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 06:03:59,650 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 52 of 108 [2022-01-19 06:03:59,651 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 06:04:00,036 INFO L129 PetriNetUnfolder]: 41/306 cut-off events. [2022-01-19 06:04:00,037 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-01-19 06:04:00,039 INFO L84 FinitePrefix]: Finished finitePrefix Result has 444 conditions, 306 events. 41/306 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 1404 event pairs, 10 based on Foata normal form. 96/399 useless extension candidates. Maximal degree in co-relation 370. Up to 29 conditions per place. [2022-01-19 06:04:00,041 INFO L132 encePairwiseOnDemand]: 89/108 looper letters, 34 selfloop transitions, 4 changer transitions 38/118 dead transitions. [2022-01-19 06:04:00,041 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 104 places, 118 transitions, 383 flow [2022-01-19 06:04:00,043 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-01-19 06:04:00,045 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2022-01-19 06:04:00,058 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 842 transitions. [2022-01-19 06:04:00,062 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.5568783068783069 [2022-01-19 06:04:00,062 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 842 transitions. [2022-01-19 06:04:00,063 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 842 transitions. [2022-01-19 06:04:00,066 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 06:04:00,068 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 842 transitions. [2022-01-19 06:04:00,073 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 60.142857142857146) internal successors, (842), 14 states have internal predecessors, (842), 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) [2022-01-19 06:04:00,084 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 108.0) internal successors, (1620), 15 states have internal predecessors, (1620), 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) [2022-01-19 06:04:00,085 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 108.0) internal successors, (1620), 15 states have internal predecessors, (1620), 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) [2022-01-19 06:04:00,086 INFO L186 Difference]: Start difference. First operand has 92 places, 97 transitions, 197 flow. Second operand 14 states and 842 transitions. [2022-01-19 06:04:00,088 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 104 places, 118 transitions, 383 flow [2022-01-19 06:04:00,091 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 103 places, 118 transitions, 382 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-01-19 06:04:00,095 INFO L242 Difference]: Finished difference. Result has 110 places, 80 transitions, 186 flow [2022-01-19 06:04:00,096 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=108, PETRI_DIFFERENCE_MINUEND_FLOW=176, PETRI_DIFFERENCE_MINUEND_PLACES=90, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=87, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=83, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=186, PETRI_PLACES=110, PETRI_TRANSITIONS=80} [2022-01-19 06:04:00,102 INFO L334 CegarLoopForPetriNet]: 92 programPoint places, 18 predicate places. [2022-01-19 06:04:00,102 INFO L470 AbstractCegarLoop]: Abstraction has has 110 places, 80 transitions, 186 flow [2022-01-19 06:04:00,103 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 55.77777777777778) internal successors, (502), 9 states have internal predecessors, (502), 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) [2022-01-19 06:04:00,103 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 06:04:00,103 INFO L254 CegarLoopForPetriNet]: 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, 1] [2022-01-19 06:04:00,103 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-01-19 06:04:00,104 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-01-19 06:04:00,104 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 06:04:00,104 INFO L85 PathProgramCache]: Analyzing trace with hash -255844283, now seen corresponding path program 1 times [2022-01-19 06:04:00,105 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 06:04:00,105 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1291138632] [2022-01-19 06:04:00,105 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 06:04:00,106 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 06:04:00,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 06:04:00,275 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-19 06:04:00,276 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 06:04:00,276 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1291138632] [2022-01-19 06:04:00,276 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1291138632] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 06:04:00,276 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 06:04:00,276 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-19 06:04:00,276 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1815930738] [2022-01-19 06:04:00,277 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 06:04:00,278 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-19 06:04:00,278 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 06:04:00,279 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-19 06:04:00,279 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-01-19 06:04:00,280 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 74 out of 108 [2022-01-19 06:04:00,281 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 110 places, 80 transitions, 186 flow. Second operand has 6 states, 6 states have (on average 76.83333333333333) internal successors, (461), 6 states have internal predecessors, (461), 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) [2022-01-19 06:04:00,281 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 06:04:00,281 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 74 of 108 [2022-01-19 06:04:00,281 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 06:04:00,374 INFO L129 PetriNetUnfolder]: 7/134 cut-off events. [2022-01-19 06:04:00,374 INFO L130 PetriNetUnfolder]: For 9/9 co-relation queries the response was YES. [2022-01-19 06:04:00,375 INFO L84 FinitePrefix]: Finished finitePrefix Result has 213 conditions, 134 events. 7/134 cut-off events. For 9/9 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 174 event pairs, 4 based on Foata normal form. 4/138 useless extension candidates. Maximal degree in co-relation 191. Up to 21 conditions per place. [2022-01-19 06:04:00,376 INFO L132 encePairwiseOnDemand]: 100/108 looper letters, 15 selfloop transitions, 8 changer transitions 1/83 dead transitions. [2022-01-19 06:04:00,376 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 98 places, 83 transitions, 240 flow [2022-01-19 06:04:00,376 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-19 06:04:00,376 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-01-19 06:04:00,377 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 397 transitions. [2022-01-19 06:04:00,377 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7351851851851852 [2022-01-19 06:04:00,378 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 397 transitions. [2022-01-19 06:04:00,378 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 397 transitions. [2022-01-19 06:04:00,378 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 06:04:00,378 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 397 transitions. [2022-01-19 06:04:00,379 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 79.4) internal successors, (397), 5 states have internal predecessors, (397), 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) [2022-01-19 06:04:00,380 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 108.0) internal successors, (648), 6 states have internal predecessors, (648), 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) [2022-01-19 06:04:00,381 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 108.0) internal successors, (648), 6 states have internal predecessors, (648), 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) [2022-01-19 06:04:00,381 INFO L186 Difference]: Start difference. First operand has 110 places, 80 transitions, 186 flow. Second operand 5 states and 397 transitions. [2022-01-19 06:04:00,381 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 98 places, 83 transitions, 240 flow [2022-01-19 06:04:00,383 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 88 places, 83 transitions, 220 flow, removed 6 selfloop flow, removed 10 redundant places. [2022-01-19 06:04:00,385 INFO L242 Difference]: Finished difference. Result has 89 places, 81 transitions, 192 flow [2022-01-19 06:04:00,386 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=108, PETRI_DIFFERENCE_MINUEND_FLOW=166, PETRI_DIFFERENCE_MINUEND_PLACES=84, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=80, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=72, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=192, PETRI_PLACES=89, PETRI_TRANSITIONS=81} [2022-01-19 06:04:00,386 INFO L334 CegarLoopForPetriNet]: 92 programPoint places, -3 predicate places. [2022-01-19 06:04:00,387 INFO L470 AbstractCegarLoop]: Abstraction has has 89 places, 81 transitions, 192 flow [2022-01-19 06:04:00,387 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 76.83333333333333) internal successors, (461), 6 states have internal predecessors, (461), 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) [2022-01-19 06:04:00,387 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 06:04:00,388 INFO L254 CegarLoopForPetriNet]: 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, 1, 1, 1, 1] [2022-01-19 06:04:00,388 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-01-19 06:04:00,388 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-01-19 06:04:00,388 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 06:04:00,389 INFO L85 PathProgramCache]: Analyzing trace with hash -272814705, now seen corresponding path program 1 times [2022-01-19 06:04:00,389 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 06:04:00,389 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1976775599] [2022-01-19 06:04:00,389 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 06:04:00,390 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 06:04:00,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-01-19 06:04:00,432 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-01-19 06:04:00,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-01-19 06:04:00,474 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-01-19 06:04:00,474 INFO L628 BasicCegarLoop]: Counterexample is feasible [2022-01-19 06:04:00,475 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 2 remaining) [2022-01-19 06:04:00,476 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATION (0 of 2 remaining) [2022-01-19 06:04:00,477 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-01-19 06:04:00,479 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2022-01-19 06:04:00,483 INFO L230 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-01-19 06:04:00,483 INFO L180 ceAbstractionStarter]: Computing trace abstraction results [2022-01-19 06:04:00,517 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.01 06:04:00 BasicIcfg [2022-01-19 06:04:00,518 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-01-19 06:04:00,518 INFO L158 Benchmark]: Toolchain (without parser) took 2496.62ms. Allocated memory was 362.8MB in the beginning and 465.6MB in the end (delta: 102.8MB). Free memory was 307.5MB in the beginning and 423.4MB in the end (delta: -115.9MB). There was no memory consumed. Max. memory is 16.0GB. [2022-01-19 06:04:00,518 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 362.8MB. Free memory is still 325.1MB. There was no memory consumed. Max. memory is 16.0GB. [2022-01-19 06:04:00,519 INFO L158 Benchmark]: CACSL2BoogieTranslator took 480.45ms. Allocated memory was 362.8MB in the beginning and 465.6MB in the end (delta: 102.8MB). Free memory was 307.2MB in the beginning and 428.4MB in the end (delta: -121.2MB). Peak memory consumption was 9.1MB. Max. memory is 16.0GB. [2022-01-19 06:04:00,520 INFO L158 Benchmark]: Boogie Procedure Inliner took 60.38ms. Allocated memory is still 465.6MB. Free memory was 428.4MB in the beginning and 426.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2022-01-19 06:04:00,520 INFO L158 Benchmark]: Boogie Preprocessor took 30.82ms. Allocated memory is still 465.6MB. Free memory was 426.3MB in the beginning and 424.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2022-01-19 06:04:00,520 INFO L158 Benchmark]: RCFGBuilder took 412.21ms. Allocated memory is still 465.6MB. Free memory was 424.2MB in the beginning and 410.8MB in the end (delta: 13.4MB). Peak memory consumption was 12.6MB. Max. memory is 16.0GB. [2022-01-19 06:04:00,521 INFO L158 Benchmark]: TraceAbstraction took 1497.76ms. Allocated memory is still 465.6MB. Free memory was 410.4MB in the beginning and 423.4MB in the end (delta: -13.0MB). There was no memory consumed. Max. memory is 16.0GB. [2022-01-19 06:04:00,523 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12ms. Allocated memory is still 362.8MB. Free memory is still 325.1MB. There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 480.45ms. Allocated memory was 362.8MB in the beginning and 465.6MB in the end (delta: 102.8MB). Free memory was 307.2MB in the beginning and 428.4MB in the end (delta: -121.2MB). Peak memory consumption was 9.1MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 60.38ms. Allocated memory is still 465.6MB. Free memory was 428.4MB in the beginning and 426.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * Boogie Preprocessor took 30.82ms. Allocated memory is still 465.6MB. Free memory was 426.3MB in the beginning and 424.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * RCFGBuilder took 412.21ms. Allocated memory is still 465.6MB. Free memory was 424.2MB in the beginning and 410.8MB in the end (delta: 13.4MB). Peak memory consumption was 12.6MB. Max. memory is 16.0GB. * TraceAbstraction took 1497.76ms. Allocated memory is still 465.6MB. Free memory was 410.4MB in the beginning and 423.4MB in the end (delta: -13.0MB). 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: 691]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L696] 0 pthread_mutex_t __global_lock = { { 0, 0, 0, 0, 0, { { 0, 0 } } } }; VAL [__global_lock={3:0}] [L697] 0 pthread_mutex_t mutex1 = { { 0, 0, 0, 0, 0, { { 0, 0 } } } }; VAL [__global_lock={3:0}, mutex1={4:0}] [L698] 0 pthread_mutex_t mutex2 = { { 0, 0, 0, 0, 0, { { 0, 0 } } } }; VAL [__global_lock={3:0}, mutex1={4:0}, mutex2={5:0}] [L707] 0 pthread_t id; VAL [__global_lock={3:0}, id={7:0}, mutex1={4:0}, mutex2={5:0}] [L708] 0 int i = 0; VAL [__global_lock={3:0}, i={6:0}, id={7:0}, mutex1={4:0}, mutex2={5:0}] [L709] FCALL, FORK 0 pthread_create(&id, ((void *)0), t_fun, (void *) &i) VAL [__global_lock={3:0}, arg={6:0}, i={6:0}, id={7:0}, mutex1={4:0}, mutex2={5:0}, pthread_create(&id, ((void *)0), t_fun, (void *) &i)=-1] [L700] 1 int *p = (int *) arg; VAL [__global_lock={3:0}, arg={6:0}, arg={6:0}, mutex1={4:0}, mutex2={5:0}, p={6:0}] [L702] EXPR 1 \read(*p) VAL [\read(*p)=0, __global_lock={3:0}, arg={6:0}, arg={6:0}, mutex1={4:0}, mutex2={5:0}, p={6:0}] [L702] 1 (*p)++ VAL [(*p)++=0, \read(*p)=0, __global_lock={3:0}, arg={6:0}, arg={6:0}, mutex1={4:0}, mutex2={5:0}, p={6:0}] [L711] EXPR 0 \read(i) VAL [\read(i)=1, __global_lock={3:0}, arg={6:0}, arg={6:0}, i={6:0}, id={7:0}, mutex1={4:0}, mutex2={5:0}, p={6:0}] [L711] CALL 0 __VERIFIER_assert((i) == 0) [L691] COND TRUE 0 !(cond) VAL [\old(cond)=0, __global_lock={3:0}, arg={6:0}, arg={6:0}, cond=0, mutex1={4:0}, mutex2={5:0}, p={6:0}] [L691] 0 reach_error() VAL [\old(cond)=0, __global_lock={3:0}, arg={6:0}, arg={6:0}, cond=0, mutex1={4:0}, mutex2={5:0}, p={6:0}] - UnprovableResult [Line: 709]: 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, 129 locations, 2 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 1.4s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 116 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 116 mSDsluCounter, 192 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 153 mSDsCounter, 23 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 160 IncrementalHoareTripleChecker+Invalid, 183 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 23 mSolverCounterUnsat, 41 mSDtfsCounter, 160 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 28 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=197occurred in iteration=0, InterpolantAutomatonStates: 19, 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, 0.3s InterpolantComputationTime, 182 NumberOfCodeBlocks, 182 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 114 ConstructedInterpolants, 0 QuantifiedInterpolants, 401 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! [2022-01-19 06:04:00,565 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...