/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-FA-NoLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml --cacsl2boogietranslator.check.absence.of.data.races.in.concurrent.programs true --cacsl2boogietranslator.check.unreachability.of.error.function.in.sv-comp.mode false -i ../../../trunk/examples/svcomp/goblint-regression/10-synch_02-thread_nonunique.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-?-bc289cb [2022-01-28 14:29:47,673 INFO L177 SettingsManager]: Resetting all preferences to default values... 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[2022-01-28 14:29:47,745 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-01-28 14:29:47,746 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-01-28 14:29:47,747 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-01-28 14:29:47,747 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-01-28 14:29:47,748 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-01-28 14:29:47,748 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-01-28 14:29:47,749 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-01-28 14:29:47,750 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-01-28 14:29:47,751 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-01-28 14:29:47,752 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-01-28 14:29:47,752 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-01-28 14:29:47,753 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-01-28 14:29:47,754 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-01-28 14:29:47,759 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-28 14:29:47,760 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-28 14:29:47,760 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-28 14:29:47,761 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe.epf [2022-01-28 14:29:47,773 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-28 14:29:47,773 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-28 14:29:47,773 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-01-28 14:29:47,773 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-01-28 14:29:47,774 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-01-28 14:29:47,774 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-01-28 14:29:47,774 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-01-28 14:29:47,774 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-01-28 14:29:47,774 INFO L138 SettingsManager]: * Use SBE=true [2022-01-28 14:29:47,775 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-28 14:29:47,775 INFO L138 SettingsManager]: * sizeof long=4 [2022-01-28 14:29:47,775 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-28 14:29:47,775 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-01-28 14:29:47,775 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-28 14:29:47,775 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-28 14:29:47,775 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-28 14:29:47,775 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-28 14:29:47,775 INFO L138 SettingsManager]: * sizeof long double=12 [2022-01-28 14:29:47,775 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-28 14:29:47,775 INFO L138 SettingsManager]: * Use constant arrays=true [2022-01-28 14:29:47,776 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-28 14:29:47,776 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-28 14:29:47,776 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-28 14:29:47,776 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-01-28 14:29:47,776 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-28 14:29:47,776 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-28 14:29:47,776 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-28 14:29:47,776 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-01-28 14:29:47,776 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-01-28 14:29:47,776 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-01-28 14:29:47,776 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-01-28 14:29:47,777 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-01-28 14:29:47,777 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-01-28 14:29:47,777 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of data races in concurrent programs -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of error function in SV-COMP mode -> false [2022-01-28 14:29:47,958 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-28 14:29:47,982 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-28 14:29:47,984 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-28 14:29:47,985 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-28 14:29:47,987 INFO L275 PluginConnector]: CDTParser initialized [2022-01-28 14:29:47,988 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/10-synch_02-thread_nonunique.i [2022-01-28 14:29:48,039 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4a5c9c407/17e19849ed5e41fdb4db62e40b54ac2b/FLAG25179ac44 [2022-01-28 14:29:48,434 INFO L306 CDTParser]: Found 1 translation units. [2022-01-28 14:29:48,434 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/10-synch_02-thread_nonunique.i [2022-01-28 14:29:48,453 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4a5c9c407/17e19849ed5e41fdb4db62e40b54ac2b/FLAG25179ac44 [2022-01-28 14:29:48,778 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4a5c9c407/17e19849ed5e41fdb4db62e40b54ac2b [2022-01-28 14:29:48,779 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-28 14:29:48,780 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-01-28 14:29:48,785 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-28 14:29:48,785 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-28 14:29:48,787 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-28 14:29:48,787 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.01 02:29:48" (1/1) ... [2022-01-28 14:29:48,789 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@339e4210 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 02:29:48, skipping insertion in model container [2022-01-28 14:29:48,789 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.01 02:29:48" (1/1) ... [2022-01-28 14:29:48,793 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-28 14:29:48,817 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-28 14:29:49,092 INFO L209 PostProcessor]: Analyzing one entry point: main [2022-01-28 14:29:49,101 INFO L203 MainTranslator]: Completed pre-run [2022-01-28 14:29:49,147 INFO L209 PostProcessor]: Analyzing one entry point: main [2022-01-28 14:29:49,179 INFO L208 MainTranslator]: Completed translation [2022-01-28 14:29:49,180 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 02:29:49 WrapperNode [2022-01-28 14:29:49,180 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-28 14:29:49,180 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-01-28 14:29:49,181 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-01-28 14:29:49,181 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-01-28 14:29:49,186 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 02:29:49" (1/1) ... [2022-01-28 14:29:49,199 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 02:29:49" (1/1) ... [2022-01-28 14:29:49,212 INFO L137 Inliner]: procedures = 259, calls = 8, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 44 [2022-01-28 14:29:49,213 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-01-28 14:29:49,213 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-28 14:29:49,213 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-28 14:29:49,213 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-28 14:29:49,218 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 02:29:49" (1/1) ... [2022-01-28 14:29:49,218 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 02:29:49" (1/1) ... [2022-01-28 14:29:49,228 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 02:29:49" (1/1) ... [2022-01-28 14:29:49,229 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 02:29:49" (1/1) ... [2022-01-28 14:29:49,233 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 02:29:49" (1/1) ... [2022-01-28 14:29:49,235 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 02:29:49" (1/1) ... [2022-01-28 14:29:49,236 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 02:29:49" (1/1) ... [2022-01-28 14:29:49,237 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-28 14:29:49,238 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-28 14:29:49,238 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-28 14:29:49,238 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-28 14:29:49,247 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 02:29:49" (1/1) ... [2022-01-28 14:29:49,252 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-28 14:29:49,260 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-28 14:29:49,269 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) [2022-01-28 14:29:49,280 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 [2022-01-28 14:29:49,306 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-01-28 14:29:49,306 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-01-28 14:29:49,306 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-01-28 14:29:49,306 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-01-28 14:29:49,307 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2022-01-28 14:29:49,307 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2022-01-28 14:29:49,307 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-28 14:29:49,307 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-28 14:29:49,309 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-01-28 14:29:49,433 INFO L234 CfgBuilder]: Building ICFG [2022-01-28 14:29:49,434 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-28 14:29:49,568 INFO L275 CfgBuilder]: Performing block encoding [2022-01-28 14:29:49,572 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-28 14:29:49,572 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2022-01-28 14:29:49,573 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.01 02:29:49 BoogieIcfgContainer [2022-01-28 14:29:49,574 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-28 14:29:49,575 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-28 14:29:49,575 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-28 14:29:49,577 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-28 14:29:49,577 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.01 02:29:48" (1/3) ... [2022-01-28 14:29:49,578 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@77edf8fd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.01 02:29:49, skipping insertion in model container [2022-01-28 14:29:49,578 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 02:29:49" (2/3) ... [2022-01-28 14:29:49,578 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@77edf8fd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.01 02:29:49, skipping insertion in model container [2022-01-28 14:29:49,578 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.01 02:29:49" (3/3) ... [2022-01-28 14:29:49,579 INFO L111 eAbstractionObserver]: Analyzing ICFG 10-synch_02-thread_nonunique.i [2022-01-28 14:29:49,582 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-01-28 14:29:49,582 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-01-28 14:29:49,583 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-01-28 14:29:49,583 INFO L513 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-01-28 14:29:49,609 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 14:29:49,609 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 14:29:49,609 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 14:29:49,609 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 14:29:49,609 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 14:29:49,610 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 14:29:49,610 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 14:29:49,610 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 14:29:49,610 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 14:29:49,610 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 14:29:49,610 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 14:29:49,610 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 14:29:49,610 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 14:29:49,611 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 14:29:49,611 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 14:29:49,611 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 14:29:49,611 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 14:29:49,611 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 14:29:49,611 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 14:29:49,612 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 14:29:49,612 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 14:29:49,613 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 14:29:49,617 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 14:29:49,617 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 14:29:49,617 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 14:29:49,618 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 14:29:49,618 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 14:29:49,621 INFO L148 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2022-01-28 14:29:49,662 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-28 14:29:49,668 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2022-01-28 14:29:49,668 INFO L340 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2022-01-28 14:29:49,680 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 56 places, 56 transitions, 120 flow [2022-01-28 14:29:49,724 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 311 states, 302 states have (on average 1.903973509933775) internal successors, (575), 310 states have internal predecessors, (575), 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) [2022-01-28 14:29:49,726 INFO L276 IsEmpty]: Start isEmpty. Operand has 311 states, 302 states have (on average 1.903973509933775) internal successors, (575), 310 states have internal predecessors, (575), 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) [2022-01-28 14:29:49,734 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2022-01-28 14:29:49,734 INFO L506 BasicCegarLoop]: Found error trace [2022-01-28 14:29:49,734 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-28 14:29:49,735 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATION, t_funErr0ASSERT_VIOLATIONDATA_RACE, t_funErr0ASSERT_VIOLATIONDATA_RACE] === [2022-01-28 14:29:49,739 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-28 14:29:49,739 INFO L85 PathProgramCache]: Analyzing trace with hash 1508681915, now seen corresponding path program 1 times [2022-01-28 14:29:49,745 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-28 14:29:49,746 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1085098220] [2022-01-28 14:29:49,746 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-28 14:29:49,747 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-28 14:29:49,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-28 14:29:49,894 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-28 14:29:49,894 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-28 14:29:49,894 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1085098220] [2022-01-28 14:29:49,895 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1085098220] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-28 14:29:49,895 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-28 14:29:49,895 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-28 14:29:49,896 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1259719535] [2022-01-28 14:29:49,896 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-28 14:29:49,900 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-01-28 14:29:49,900 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-28 14:29:49,924 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-01-28 14:29:49,925 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-01-28 14:29:49,928 INFO L87 Difference]: Start difference. First operand has 311 states, 302 states have (on average 1.903973509933775) internal successors, (575), 310 states have internal predecessors, (575), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 10.5) internal successors, (21), 2 states have internal predecessors, (21), 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) [2022-01-28 14:29:49,963 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-28 14:29:49,963 INFO L93 Difference]: Finished difference Result 311 states and 554 transitions. [2022-01-28 14:29:49,964 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-01-28 14:29:49,965 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 10.5) internal successors, (21), 2 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 21 [2022-01-28 14:29:49,965 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-28 14:29:49,979 INFO L225 Difference]: With dead ends: 311 [2022-01-28 14:29:49,979 INFO L226 Difference]: Without dead ends: 282 [2022-01-28 14:29:49,981 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-01-28 14:29:49,991 INFO L933 BasicCegarLoop]: 52 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 52 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-28 14:29:49,992 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 52 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-28 14:29:50,004 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 282 states. [2022-01-28 14:29:50,041 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 282 to 282. [2022-01-28 14:29:50,043 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 282 states, 275 states have (on average 1.8072727272727274) internal successors, (497), 281 states have internal predecessors, (497), 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) [2022-01-28 14:29:50,043 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 282 states to 282 states and 497 transitions. [2022-01-28 14:29:50,044 INFO L78 Accepts]: Start accepts. Automaton has 282 states and 497 transitions. Word has length 21 [2022-01-28 14:29:50,044 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-28 14:29:50,044 INFO L470 AbstractCegarLoop]: Abstraction has 282 states and 497 transitions. [2022-01-28 14:29:50,045 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 10.5) internal successors, (21), 2 states have internal predecessors, (21), 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) [2022-01-28 14:29:50,045 INFO L276 IsEmpty]: Start isEmpty. Operand 282 states and 497 transitions. [2022-01-28 14:29:50,045 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2022-01-28 14:29:50,045 INFO L506 BasicCegarLoop]: Found error trace [2022-01-28 14:29:50,045 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-28 14:29:50,045 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-01-28 14:29:50,045 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATION, t_funErr0ASSERT_VIOLATIONDATA_RACE, t_funErr0ASSERT_VIOLATIONDATA_RACE] === [2022-01-28 14:29:50,046 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-28 14:29:50,046 INFO L85 PathProgramCache]: Analyzing trace with hash -298772548, now seen corresponding path program 1 times [2022-01-28 14:29:50,046 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-28 14:29:50,046 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1097651956] [2022-01-28 14:29:50,046 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-28 14:29:50,046 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-28 14:29:50,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-28 14:29:50,110 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-28 14:29:50,110 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-28 14:29:50,110 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1097651956] [2022-01-28 14:29:50,110 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1097651956] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-28 14:29:50,110 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-28 14:29:50,111 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-28 14:29:50,112 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [788690980] [2022-01-28 14:29:50,113 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-28 14:29:50,113 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-28 14:29:50,113 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-28 14:29:50,114 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-28 14:29:50,114 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-28 14:29:50,114 INFO L87 Difference]: Start difference. First operand 282 states and 497 transitions. Second operand has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 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) [2022-01-28 14:29:50,166 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-28 14:29:50,166 INFO L93 Difference]: Finished difference Result 239 states and 418 transitions. [2022-01-28 14:29:50,168 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-28 14:29:50,168 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 21 [2022-01-28 14:29:50,168 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-28 14:29:50,169 INFO L225 Difference]: With dead ends: 239 [2022-01-28 14:29:50,169 INFO L226 Difference]: Without dead ends: 239 [2022-01-28 14:29:50,169 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-28 14:29:50,170 INFO L933 BasicCegarLoop]: 33 mSDtfsCounter, 28 mSDsluCounter, 23 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 56 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-28 14:29:50,170 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [28 Valid, 56 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-28 14:29:50,171 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 239 states. [2022-01-28 14:29:50,178 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 239 to 239. [2022-01-28 14:29:50,178 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 239 states, 233 states have (on average 1.793991416309013) internal successors, (418), 238 states have internal predecessors, (418), 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) [2022-01-28 14:29:50,179 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 239 states to 239 states and 418 transitions. [2022-01-28 14:29:50,179 INFO L78 Accepts]: Start accepts. Automaton has 239 states and 418 transitions. Word has length 21 [2022-01-28 14:29:50,179 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-28 14:29:50,179 INFO L470 AbstractCegarLoop]: Abstraction has 239 states and 418 transitions. [2022-01-28 14:29:50,180 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 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) [2022-01-28 14:29:50,180 INFO L276 IsEmpty]: Start isEmpty. Operand 239 states and 418 transitions. [2022-01-28 14:29:50,180 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2022-01-28 14:29:50,180 INFO L506 BasicCegarLoop]: Found error trace [2022-01-28 14:29:50,180 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-28 14:29:50,180 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-01-28 14:29:50,180 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATION, t_funErr0ASSERT_VIOLATIONDATA_RACE, t_funErr0ASSERT_VIOLATIONDATA_RACE] === [2022-01-28 14:29:50,181 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-28 14:29:50,181 INFO L85 PathProgramCache]: Analyzing trace with hash 1391277118, now seen corresponding path program 1 times [2022-01-28 14:29:50,181 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-28 14:29:50,181 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [668102861] [2022-01-28 14:29:50,181 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-28 14:29:50,181 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-28 14:29:50,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-28 14:29:50,207 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-28 14:29:50,208 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-28 14:29:50,208 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [668102861] [2022-01-28 14:29:50,208 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [668102861] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-28 14:29:50,208 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-28 14:29:50,208 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-28 14:29:50,208 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [235156184] [2022-01-28 14:29:50,208 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-28 14:29:50,208 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-28 14:29:50,209 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-28 14:29:50,209 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-28 14:29:50,209 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-28 14:29:50,209 INFO L87 Difference]: Start difference. First operand 239 states and 418 transitions. Second operand has 3 states, 2 states have (on average 11.0) internal successors, (22), 3 states have internal predecessors, (22), 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) [2022-01-28 14:29:50,222 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-28 14:29:50,222 INFO L93 Difference]: Finished difference Result 218 states and 377 transitions. [2022-01-28 14:29:50,222 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-28 14:29:50,222 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 11.0) internal successors, (22), 3 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 22 [2022-01-28 14:29:50,223 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-28 14:29:50,223 INFO L225 Difference]: With dead ends: 218 [2022-01-28 14:29:50,223 INFO L226 Difference]: Without dead ends: 218 [2022-01-28 14:29:50,223 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-28 14:29:50,224 INFO L933 BasicCegarLoop]: 63 mSDtfsCounter, 21 mSDsluCounter, 41 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 103 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-28 14:29:50,225 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [21 Valid, 103 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-28 14:29:50,225 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 218 states. [2022-01-28 14:29:50,227 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 218 to 218. [2022-01-28 14:29:50,228 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 218 states, 215 states have (on average 1.7534883720930232) internal successors, (377), 217 states have internal predecessors, (377), 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) [2022-01-28 14:29:50,228 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 218 states to 218 states and 377 transitions. [2022-01-28 14:29:50,228 INFO L78 Accepts]: Start accepts. Automaton has 218 states and 377 transitions. Word has length 22 [2022-01-28 14:29:50,228 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-28 14:29:50,228 INFO L470 AbstractCegarLoop]: Abstraction has 218 states and 377 transitions. [2022-01-28 14:29:50,229 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 11.0) internal successors, (22), 3 states have internal predecessors, (22), 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) [2022-01-28 14:29:50,229 INFO L276 IsEmpty]: Start isEmpty. Operand 218 states and 377 transitions. [2022-01-28 14:29:50,229 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2022-01-28 14:29:50,229 INFO L506 BasicCegarLoop]: Found error trace [2022-01-28 14:29:50,229 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-28 14:29:50,229 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-01-28 14:29:50,230 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0INUSE_VIOLATION === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATION, t_funErr0ASSERT_VIOLATIONDATA_RACE, t_funErr0ASSERT_VIOLATIONDATA_RACE] === [2022-01-28 14:29:50,230 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-28 14:29:50,230 INFO L85 PathProgramCache]: Analyzing trace with hash 499314067, now seen corresponding path program 1 times [2022-01-28 14:29:50,230 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-28 14:29:50,230 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1710522717] [2022-01-28 14:29:50,230 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-28 14:29:50,230 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-28 14:29:50,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-01-28 14:29:50,264 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-01-28 14:29:50,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-01-28 14:29:50,285 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-01-28 14:29:50,285 INFO L628 BasicCegarLoop]: Counterexample is feasible [2022-01-28 14:29:50,286 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATION (3 of 4 remaining) [2022-01-28 14:29:50,287 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (2 of 4 remaining) [2022-01-28 14:29:50,287 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (1 of 4 remaining) [2022-01-28 14:29:50,287 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (0 of 4 remaining) [2022-01-28 14:29:50,287 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-01-28 14:29:50,289 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2022-01-28 14:29:50,290 WARN L234 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2022-01-28 14:29:50,290 INFO L513 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2022-01-28 14:29:50,304 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 14:29:50,304 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 14:29:50,304 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 14:29:50,304 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 14:29:50,305 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 14:29:50,305 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 14:29:50,305 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 14:29:50,305 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 14:29:50,305 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 14:29:50,305 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 14:29:50,305 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 14:29:50,305 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 14:29:50,305 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 14:29:50,305 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 14:29:50,305 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 14:29:50,306 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 14:29:50,306 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 14:29:50,306 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 14:29:50,306 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 14:29:50,306 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 14:29:50,306 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 14:29:50,306 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 14:29:50,306 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 14:29:50,306 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 14:29:50,306 WARN L322 ript$VariableManager]: TermVariabe t_funThread2of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 14:29:50,306 WARN L322 ript$VariableManager]: TermVariabe t_funThread2of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 14:29:50,306 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 14:29:50,306 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 14:29:50,307 WARN L322 ript$VariableManager]: TermVariabe t_funThread2of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 14:29:50,307 WARN L322 ript$VariableManager]: TermVariabe t_funThread2of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 14:29:50,307 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 14:29:50,307 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 14:29:50,307 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 14:29:50,307 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 14:29:50,307 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 14:29:50,307 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 14:29:50,307 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 14:29:50,307 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 14:29:50,307 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 14:29:50,307 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 14:29:50,308 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 14:29:50,308 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 14:29:50,308 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 14:29:50,308 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 14:29:50,308 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 14:29:50,308 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 14:29:50,308 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 14:29:50,308 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 14:29:50,308 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 14:29:50,309 WARN L322 ript$VariableManager]: TermVariabe t_funThread2of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 14:29:50,309 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 14:29:50,309 WARN L322 ript$VariableManager]: TermVariabe t_funThread2of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 14:29:50,309 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 14:29:50,309 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 14:29:50,310 INFO L148 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-01-28 14:29:50,311 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-28 14:29:50,311 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2022-01-28 14:29:50,311 INFO L340 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2022-01-28 14:29:50,312 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 68 places, 67 transitions, 152 flow [2022-01-28 14:29:50,375 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 3341 states, 3316 states have (on average 2.708986731001206) internal successors, (8983), 3340 states have internal predecessors, (8983), 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) [2022-01-28 14:29:50,382 INFO L276 IsEmpty]: Start isEmpty. Operand has 3341 states, 3316 states have (on average 2.708986731001206) internal successors, (8983), 3340 states have internal predecessors, (8983), 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) [2022-01-28 14:29:50,383 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2022-01-28 14:29:50,383 INFO L506 BasicCegarLoop]: Found error trace [2022-01-28 14:29:50,383 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-28 14:29:50,383 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATION, t_funErr0ASSERT_VIOLATIONDATA_RACE, t_funErr0ASSERT_VIOLATIONDATA_RACE (and 1 more)] === [2022-01-28 14:29:50,383 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-28 14:29:50,383 INFO L85 PathProgramCache]: Analyzing trace with hash -179665602, now seen corresponding path program 1 times [2022-01-28 14:29:50,384 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-28 14:29:50,384 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1665064727] [2022-01-28 14:29:50,384 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-28 14:29:50,384 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-28 14:29:50,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-28 14:29:50,413 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-28 14:29:50,414 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-28 14:29:50,414 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1665064727] [2022-01-28 14:29:50,414 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1665064727] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-28 14:29:50,414 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-28 14:29:50,414 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-28 14:29:50,414 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1988807776] [2022-01-28 14:29:50,414 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-28 14:29:50,414 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-01-28 14:29:50,415 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-28 14:29:50,415 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-01-28 14:29:50,415 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-01-28 14:29:50,421 INFO L87 Difference]: Start difference. First operand has 3341 states, 3316 states have (on average 2.708986731001206) internal successors, (8983), 3340 states have internal predecessors, (8983), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 10.5) internal successors, (21), 2 states have internal predecessors, (21), 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) [2022-01-28 14:29:50,450 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-28 14:29:50,451 INFO L93 Difference]: Finished difference Result 3341 states and 8752 transitions. [2022-01-28 14:29:50,451 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-01-28 14:29:50,451 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 10.5) internal successors, (21), 2 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 21 [2022-01-28 14:29:50,451 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-28 14:29:50,463 INFO L225 Difference]: With dead ends: 3341 [2022-01-28 14:29:50,463 INFO L226 Difference]: Without dead ends: 3172 [2022-01-28 14:29:50,463 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-01-28 14:29:50,464 INFO L933 BasicCegarLoop]: 61 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 61 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-28 14:29:50,464 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 61 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-28 14:29:50,502 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3172 states. [2022-01-28 14:29:50,542 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3172 to 3172. [2022-01-28 14:29:50,548 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3172 states, 3151 states have (on average 2.6350364963503647) internal successors, (8303), 3171 states have internal predecessors, (8303), 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) [2022-01-28 14:29:50,560 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3172 states to 3172 states and 8303 transitions. [2022-01-28 14:29:50,560 INFO L78 Accepts]: Start accepts. Automaton has 3172 states and 8303 transitions. Word has length 21 [2022-01-28 14:29:50,560 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-28 14:29:50,560 INFO L470 AbstractCegarLoop]: Abstraction has 3172 states and 8303 transitions. [2022-01-28 14:29:50,560 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 10.5) internal successors, (21), 2 states have internal predecessors, (21), 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) [2022-01-28 14:29:50,560 INFO L276 IsEmpty]: Start isEmpty. Operand 3172 states and 8303 transitions. [2022-01-28 14:29:50,564 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2022-01-28 14:29:50,564 INFO L506 BasicCegarLoop]: Found error trace [2022-01-28 14:29:50,564 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-28 14:29:50,564 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-01-28 14:29:50,564 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATION, t_funErr0ASSERT_VIOLATIONDATA_RACE, t_funErr0ASSERT_VIOLATIONDATA_RACE (and 1 more)] === [2022-01-28 14:29:50,565 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-28 14:29:50,565 INFO L85 PathProgramCache]: Analyzing trace with hash -1987120065, now seen corresponding path program 1 times [2022-01-28 14:29:50,565 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-28 14:29:50,565 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [733150569] [2022-01-28 14:29:50,565 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-28 14:29:50,565 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-28 14:29:50,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-28 14:29:50,602 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-28 14:29:50,602 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-28 14:29:50,602 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [733150569] [2022-01-28 14:29:50,602 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [733150569] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-28 14:29:50,602 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-28 14:29:50,602 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-28 14:29:50,602 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [969155731] [2022-01-28 14:29:50,602 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-28 14:29:50,603 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-28 14:29:50,603 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-28 14:29:50,603 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-28 14:29:50,603 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-28 14:29:50,603 INFO L87 Difference]: Start difference. First operand 3172 states and 8303 transitions. Second operand has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 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) [2022-01-28 14:29:50,673 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-28 14:29:50,673 INFO L93 Difference]: Finished difference Result 2676 states and 6842 transitions. [2022-01-28 14:29:50,674 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-28 14:29:50,674 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 21 [2022-01-28 14:29:50,674 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-28 14:29:50,683 INFO L225 Difference]: With dead ends: 2676 [2022-01-28 14:29:50,683 INFO L226 Difference]: Without dead ends: 2676 [2022-01-28 14:29:50,684 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-28 14:29:50,688 INFO L933 BasicCegarLoop]: 58 mSDtfsCounter, 38 mSDsluCounter, 44 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 99 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-28 14:29:50,690 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [38 Valid, 99 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-28 14:29:50,696 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2676 states. [2022-01-28 14:29:50,729 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2676 to 2589. [2022-01-28 14:29:50,742 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2589 states, 2571 states have (on average 2.601711396343835) internal successors, (6689), 2588 states have internal predecessors, (6689), 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) [2022-01-28 14:29:50,750 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2589 states to 2589 states and 6689 transitions. [2022-01-28 14:29:50,750 INFO L78 Accepts]: Start accepts. Automaton has 2589 states and 6689 transitions. Word has length 21 [2022-01-28 14:29:50,750 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-28 14:29:50,750 INFO L470 AbstractCegarLoop]: Abstraction has 2589 states and 6689 transitions. [2022-01-28 14:29:50,751 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 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) [2022-01-28 14:29:50,751 INFO L276 IsEmpty]: Start isEmpty. Operand 2589 states and 6689 transitions. [2022-01-28 14:29:50,754 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2022-01-28 14:29:50,754 INFO L506 BasicCegarLoop]: Found error trace [2022-01-28 14:29:50,754 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-28 14:29:50,754 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-01-28 14:29:50,754 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATION, t_funErr0ASSERT_VIOLATIONDATA_RACE, t_funErr0ASSERT_VIOLATIONDATA_RACE (and 1 more)] === [2022-01-28 14:29:50,755 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-28 14:29:50,755 INFO L85 PathProgramCache]: Analyzing trace with hash 849774069, now seen corresponding path program 1 times [2022-01-28 14:29:50,755 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-28 14:29:50,755 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1767239698] [2022-01-28 14:29:50,755 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-28 14:29:50,755 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-28 14:29:50,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-28 14:29:50,785 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-28 14:29:50,786 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-28 14:29:50,786 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1767239698] [2022-01-28 14:29:50,786 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1767239698] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-28 14:29:50,786 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-28 14:29:50,786 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-28 14:29:50,786 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1768044454] [2022-01-28 14:29:50,786 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-28 14:29:50,786 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-28 14:29:50,786 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-28 14:29:50,787 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-28 14:29:50,787 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-28 14:29:50,787 INFO L87 Difference]: Start difference. First operand 2589 states and 6689 transitions. Second operand has 3 states, 2 states have (on average 11.0) internal successors, (22), 3 states have internal predecessors, (22), 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) [2022-01-28 14:29:50,815 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-28 14:29:50,815 INFO L93 Difference]: Finished difference Result 2778 states and 7177 transitions. [2022-01-28 14:29:50,816 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-28 14:29:50,816 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 11.0) internal successors, (22), 3 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 22 [2022-01-28 14:29:50,816 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-28 14:29:50,827 INFO L225 Difference]: With dead ends: 2778 [2022-01-28 14:29:50,827 INFO L226 Difference]: Without dead ends: 2743 [2022-01-28 14:29:50,827 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-28 14:29:50,829 INFO L933 BasicCegarLoop]: 98 mSDtfsCounter, 42 mSDsluCounter, 56 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 42 SdHoareTripleChecker+Valid, 151 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-28 14:29:50,829 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [42 Valid, 151 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-28 14:29:50,834 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2743 states. [2022-01-28 14:29:50,875 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2743 to 2599. [2022-01-28 14:29:50,878 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2599 states, 2581 states have (on average 2.606354126307633) internal successors, (6727), 2598 states have internal predecessors, (6727), 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) [2022-01-28 14:29:50,918 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2599 states to 2599 states and 6727 transitions. [2022-01-28 14:29:50,918 INFO L78 Accepts]: Start accepts. Automaton has 2599 states and 6727 transitions. Word has length 22 [2022-01-28 14:29:50,918 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-28 14:29:50,919 INFO L470 AbstractCegarLoop]: Abstraction has 2599 states and 6727 transitions. [2022-01-28 14:29:50,919 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 11.0) internal successors, (22), 3 states have internal predecessors, (22), 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) [2022-01-28 14:29:50,919 INFO L276 IsEmpty]: Start isEmpty. Operand 2599 states and 6727 transitions. [2022-01-28 14:29:50,919 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-01-28 14:29:50,919 INFO L506 BasicCegarLoop]: Found error trace [2022-01-28 14:29:50,920 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-28 14:29:50,920 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-01-28 14:29:50,920 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATION, t_funErr0ASSERT_VIOLATIONDATA_RACE, t_funErr0ASSERT_VIOLATIONDATA_RACE (and 1 more)] === [2022-01-28 14:29:50,920 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-28 14:29:50,920 INFO L85 PathProgramCache]: Analyzing trace with hash 63309174, now seen corresponding path program 1 times [2022-01-28 14:29:50,920 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-28 14:29:50,920 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [328299867] [2022-01-28 14:29:50,920 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-28 14:29:50,921 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-28 14:29:50,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-28 14:29:50,956 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-28 14:29:50,956 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-28 14:29:50,957 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [328299867] [2022-01-28 14:29:50,957 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [328299867] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-28 14:29:50,957 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [795288922] [2022-01-28 14:29:50,957 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-28 14:29:50,957 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-28 14:29:50,957 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-28 14:29:50,958 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-28 14:29:50,959 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-01-28 14:29:51,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-28 14:29:51,023 INFO L263 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 4 conjunts are in the unsatisfiable core [2022-01-28 14:29:51,024 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-28 14:29:51,132 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-28 14:29:51,132 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-28 14:29:51,219 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-28 14:29:51,219 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [795288922] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-28 14:29:51,220 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-28 14:29:51,220 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2022-01-28 14:29:51,220 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [326967669] [2022-01-28 14:29:51,220 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-28 14:29:51,221 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-28 14:29:51,221 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-28 14:29:51,221 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-28 14:29:51,221 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2022-01-28 14:29:51,221 INFO L87 Difference]: Start difference. First operand 2599 states and 6727 transitions. Second operand has 10 states, 10 states have (on average 5.3) internal successors, (53), 10 states have internal predecessors, (53), 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) [2022-01-28 14:29:51,279 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-28 14:29:51,279 INFO L93 Difference]: Finished difference Result 1229 states and 3220 transitions. [2022-01-28 14:29:51,280 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-01-28 14:29:51,280 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 5.3) internal successors, (53), 10 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2022-01-28 14:29:51,280 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-28 14:29:51,284 INFO L225 Difference]: With dead ends: 1229 [2022-01-28 14:29:51,284 INFO L226 Difference]: Without dead ends: 1229 [2022-01-28 14:29:51,284 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 57 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=64, Invalid=118, Unknown=0, NotChecked=0, Total=182 [2022-01-28 14:29:51,285 INFO L933 BasicCegarLoop]: 54 mSDtfsCounter, 201 mSDsluCounter, 208 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 201 SdHoareTripleChecker+Valid, 256 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-28 14:29:51,285 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [201 Valid, 256 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-28 14:29:51,287 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1229 states. [2022-01-28 14:29:51,301 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1229 to 1229. [2022-01-28 14:29:51,302 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1229 states, 1225 states have (on average 2.6285714285714286) internal successors, (3220), 1228 states have internal predecessors, (3220), 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) [2022-01-28 14:29:51,305 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1229 states to 1229 states and 3220 transitions. [2022-01-28 14:29:51,305 INFO L78 Accepts]: Start accepts. Automaton has 1229 states and 3220 transitions. Word has length 31 [2022-01-28 14:29:51,306 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-28 14:29:51,306 INFO L470 AbstractCegarLoop]: Abstraction has 1229 states and 3220 transitions. [2022-01-28 14:29:51,306 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 5.3) internal successors, (53), 10 states have internal predecessors, (53), 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) [2022-01-28 14:29:51,306 INFO L276 IsEmpty]: Start isEmpty. Operand 1229 states and 3220 transitions. [2022-01-28 14:29:51,306 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-01-28 14:29:51,306 INFO L506 BasicCegarLoop]: Found error trace [2022-01-28 14:29:51,306 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-28 14:29:51,327 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-01-28 14:29:51,518 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-28 14:29:51,519 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATION, t_funErr0ASSERT_VIOLATIONDATA_RACE, t_funErr0ASSERT_VIOLATIONDATA_RACE (and 1 more)] === [2022-01-28 14:29:51,519 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-28 14:29:51,519 INFO L85 PathProgramCache]: Analyzing trace with hash 25788934, now seen corresponding path program 1 times [2022-01-28 14:29:51,519 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-28 14:29:51,519 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [862657699] [2022-01-28 14:29:51,519 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-28 14:29:51,519 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-28 14:29:51,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-28 14:29:51,546 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-01-28 14:29:51,546 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-28 14:29:51,546 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [862657699] [2022-01-28 14:29:51,546 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [862657699] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-28 14:29:51,546 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-28 14:29:51,546 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-28 14:29:51,546 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [50605788] [2022-01-28 14:29:51,546 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-28 14:29:51,547 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-28 14:29:51,547 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-28 14:29:51,547 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-28 14:29:51,547 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-28 14:29:51,547 INFO L87 Difference]: Start difference. First operand 1229 states and 3220 transitions. Second operand has 3 states, 2 states have (on average 14.0) internal successors, (28), 3 states have internal predecessors, (28), 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) [2022-01-28 14:29:51,560 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-28 14:29:51,560 INFO L93 Difference]: Finished difference Result 1262 states and 3294 transitions. [2022-01-28 14:29:51,560 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-28 14:29:51,560 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 14.0) internal successors, (28), 3 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 32 [2022-01-28 14:29:51,560 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-28 14:29:51,564 INFO L225 Difference]: With dead ends: 1262 [2022-01-28 14:29:51,565 INFO L226 Difference]: Without dead ends: 1262 [2022-01-28 14:29:51,565 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-28 14:29:51,565 INFO L933 BasicCegarLoop]: 55 mSDtfsCounter, 19 mSDsluCounter, 33 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 87 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-28 14:29:51,565 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [19 Valid, 87 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-28 14:29:51,567 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1262 states. [2022-01-28 14:29:51,581 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1262 to 1207. [2022-01-28 14:29:51,582 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1207 states, 1204 states have (on average 2.612126245847176) internal successors, (3145), 1206 states have internal predecessors, (3145), 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) [2022-01-28 14:29:51,584 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1207 states to 1207 states and 3145 transitions. [2022-01-28 14:29:51,584 INFO L78 Accepts]: Start accepts. Automaton has 1207 states and 3145 transitions. Word has length 32 [2022-01-28 14:29:51,585 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-28 14:29:51,585 INFO L470 AbstractCegarLoop]: Abstraction has 1207 states and 3145 transitions. [2022-01-28 14:29:51,585 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 14.0) internal successors, (28), 3 states have internal predecessors, (28), 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) [2022-01-28 14:29:51,585 INFO L276 IsEmpty]: Start isEmpty. Operand 1207 states and 3145 transitions. [2022-01-28 14:29:51,586 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2022-01-28 14:29:51,586 INFO L506 BasicCegarLoop]: Found error trace [2022-01-28 14:29:51,586 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 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] [2022-01-28 14:29:51,586 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-01-28 14:29:51,586 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATION, t_funErr0ASSERT_VIOLATIONDATA_RACE, t_funErr0ASSERT_VIOLATIONDATA_RACE (and 1 more)] === [2022-01-28 14:29:51,587 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-28 14:29:51,587 INFO L85 PathProgramCache]: Analyzing trace with hash 1212973435, now seen corresponding path program 1 times [2022-01-28 14:29:51,587 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-28 14:29:51,587 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1801134552] [2022-01-28 14:29:51,587 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-28 14:29:51,587 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-28 14:29:51,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-01-28 14:29:51,594 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-01-28 14:29:51,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-01-28 14:29:51,603 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-01-28 14:29:51,603 INFO L628 BasicCegarLoop]: Counterexample is feasible [2022-01-28 14:29:51,603 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location t_funErr0ASSERT_VIOLATIONDATA_RACE (4 of 5 remaining) [2022-01-28 14:29:51,603 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (3 of 5 remaining) [2022-01-28 14:29:51,603 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATION (2 of 5 remaining) [2022-01-28 14:29:51,603 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (1 of 5 remaining) [2022-01-28 14:29:51,603 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (0 of 5 remaining) [2022-01-28 14:29:51,603 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-01-28 14:29:51,604 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2022-01-28 14:29:51,606 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 2 thread instances [2022-01-28 14:29:51,606 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2022-01-28 14:29:51,626 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.01 02:29:51 BasicIcfg [2022-01-28 14:29:51,626 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-01-28 14:29:51,626 INFO L158 Benchmark]: Toolchain (without parser) took 2845.94ms. Allocated memory was 180.4MB in the beginning and 231.7MB in the end (delta: 51.4MB). Free memory was 127.0MB in the beginning and 109.6MB in the end (delta: 17.4MB). Peak memory consumption was 69.3MB. Max. memory is 8.0GB. [2022-01-28 14:29:51,626 INFO L158 Benchmark]: CDTParser took 0.10ms. Allocated memory is still 180.4MB. Free memory was 145.4MB in the beginning and 145.4MB in the end (delta: 73.1kB). There was no memory consumed. Max. memory is 8.0GB. [2022-01-28 14:29:51,627 INFO L158 Benchmark]: CACSL2BoogieTranslator took 395.00ms. Allocated memory was 180.4MB in the beginning and 231.7MB in the end (delta: 51.4MB). Free memory was 126.8MB in the beginning and 192.8MB in the end (delta: -65.9MB). Peak memory consumption was 10.9MB. Max. memory is 8.0GB. [2022-01-28 14:29:51,627 INFO L158 Benchmark]: Boogie Procedure Inliner took 32.51ms. Allocated memory is still 231.7MB. Free memory was 192.8MB in the beginning and 190.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-01-28 14:29:51,627 INFO L158 Benchmark]: Boogie Preprocessor took 24.14ms. Allocated memory is still 231.7MB. Free memory was 190.7MB in the beginning and 189.1MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-01-28 14:29:51,627 INFO L158 Benchmark]: RCFGBuilder took 335.77ms. Allocated memory is still 231.7MB. Free memory was 189.1MB in the beginning and 177.6MB in the end (delta: 11.6MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. [2022-01-28 14:29:51,627 INFO L158 Benchmark]: TraceAbstraction took 2051.25ms. Allocated memory is still 231.7MB. Free memory was 177.1MB in the beginning and 109.6MB in the end (delta: 67.5MB). Peak memory consumption was 69.0MB. Max. memory is 8.0GB. [2022-01-28 14:29:51,628 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10ms. Allocated memory is still 180.4MB. Free memory was 145.4MB in the beginning and 145.4MB in the end (delta: 73.1kB). There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 395.00ms. Allocated memory was 180.4MB in the beginning and 231.7MB in the end (delta: 51.4MB). Free memory was 126.8MB in the beginning and 192.8MB in the end (delta: -65.9MB). Peak memory consumption was 10.9MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 32.51ms. Allocated memory is still 231.7MB. Free memory was 192.8MB in the beginning and 190.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 24.14ms. Allocated memory is still 231.7MB. Free memory was 190.7MB in the beginning and 189.1MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 335.77ms. Allocated memory is still 231.7MB. Free memory was 189.1MB in the beginning and 177.6MB in the end (delta: 11.6MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. * TraceAbstraction took 2051.25ms. Allocated memory is still 231.7MB. Free memory was 177.1MB in the beginning and 109.6MB in the end (delta: 67.5MB). Peak memory consumption was 69.0MB. Max. memory is 8.0GB. * 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 - 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 - DataRaceFoundResult [Line: 919]: Data race detected Data race detected The following path leads to a data race: [L917] 0 int myglobal; VAL [myglobal=0] [L923] 0 pthread_t id[10]; VAL [id={2:0}, myglobal=0] [L924] 0 int i; VAL [id={2:0}, myglobal=0] [L925] 0 i=0 VAL [i=0, id={2:0}, myglobal=0] [L925] COND TRUE 0 i<10 VAL [i=0, id={2:0}, myglobal=0] [L926] FCALL, FORK 0 pthread_create(&id[i], ((void *)0), t_fun, ((void *)0)) VAL [arg={0:0}, i=0, id={2:0}, myglobal=0, pthread_create(&id[i], ((void *)0), t_fun, ((void *)0))=-1] [L919] 1 myglobal=42 VAL [arg={0:0}, arg={0:0}, myglobal=42, myglobal=42=43] [L925] 0 i++ VAL [arg={0:0}, arg={0:0}, i=1, id={2:0}, myglobal=42, myglobal=42=43] [L925] COND TRUE 0 i<10 VAL [arg={0:0}, arg={0:0}, i=1, id={2:0}, myglobal=42, myglobal=42=43] [L926] FCALL, FORK 0 pthread_create(&id[i], ((void *)0), t_fun, ((void *)0)) VAL [arg={0:0}, arg={0:0}, i=1, id={2:0}, myglobal=42, myglobal=42=43, pthread_create(&id[i], ((void *)0), t_fun, ((void *)0))=0] [L919] 2 myglobal=42 VAL [arg={0:0}, arg={0:0}, myglobal=42, myglobal=42=44] Now there is a data race, but we were unable to determine exactly which statements and variables are involved. - UnprovableResult [Line: 928]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 926]: 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, 64 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 0.6s, OverallIterations: 4, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 49 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 49 mSDsluCounter, 211 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 64 mSDsCounter, 2 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 37 IncrementalHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 2 mSolverCounterUnsat, 148 mSDtfsCounter, 37 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 7 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=311occurred in iteration=0, InterpolantAutomatonStates: 8, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 3 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 91 NumberOfCodeBlocks, 91 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 61 ConstructedInterpolants, 0 QuantifiedInterpolants, 65 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 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 - StatisticsResult: Ultimate Automizer benchmark data with 2 thread instances CFG has 4 procedures, 74 locations, 5 error locations. Started 1 CEGAR loops. OverallTime: 1.3s, OverallIterations: 6, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 300 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 300 mSDsluCounter, 654 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 341 mSDsCounter, 10 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 114 IncrementalHoareTripleChecker+Invalid, 124 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 10 mSolverCounterUnsat, 326 mSDtfsCounter, 114 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 78 GetRequests, 63 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=3341occurred 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: 0.2s AutomataMinimizationTime, 5 MinimizatonAttempts, 286 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 194 NumberOfCodeBlocks, 194 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 182 ConstructedInterpolants, 0 QuantifiedInterpolants, 254 SizeOfPredicates, 2 NumberOfNonLiveVariables, 76 ConjunctsInSsa, 4 ConjunctsInUnsatCore, 7 InterpolantComputations, 4 PerfectInterpolantSequences, 5/8 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 could not prove your program: unable to determine feasibility of some traces [2022-01-28 14:29:51,666 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request...