/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/mcr/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-McrAutomaton-WP.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/04-mutex_47-fun_write.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.mcr-reduction-c7b2d19 [2022-03-15 20:13:01,868 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-03-15 20:13:01,869 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-03-15 20:13:01,919 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-03-15 20:13:01,920 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-03-15 20:13:01,920 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-03-15 20:13:01,921 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-03-15 20:13:01,922 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-03-15 20:13:01,924 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-03-15 20:13:01,924 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-03-15 20:13:01,925 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-03-15 20:13:01,925 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-03-15 20:13:01,926 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-03-15 20:13:01,926 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-03-15 20:13:01,927 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-03-15 20:13:01,928 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-03-15 20:13:01,928 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-03-15 20:13:01,929 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-03-15 20:13:01,930 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-03-15 20:13:01,931 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-03-15 20:13:01,932 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-03-15 20:13:01,933 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-03-15 20:13:01,934 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-03-15 20:13:01,935 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-03-15 20:13:01,937 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-03-15 20:13:01,937 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-03-15 20:13:01,937 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-03-15 20:13:01,938 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-03-15 20:13:01,938 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-03-15 20:13:01,939 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-03-15 20:13:01,939 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-03-15 20:13:01,939 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-03-15 20:13:01,940 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-03-15 20:13:01,940 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-03-15 20:13:01,941 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-03-15 20:13:01,941 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-03-15 20:13:01,941 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-03-15 20:13:01,942 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-03-15 20:13:01,942 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-03-15 20:13:01,943 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-03-15 20:13:01,944 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-03-15 20:13:01,945 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/mcr/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-McrAutomaton-WP.epf [2022-03-15 20:13:01,976 INFO L113 SettingsManager]: Loading preferences was successful [2022-03-15 20:13:01,976 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-03-15 20:13:01,977 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-03-15 20:13:01,977 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-03-15 20:13:01,977 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-03-15 20:13:01,977 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-03-15 20:13:01,977 INFO L138 SettingsManager]: * Use SBE=true [2022-03-15 20:13:01,978 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-03-15 20:13:01,978 INFO L138 SettingsManager]: * sizeof long=4 [2022-03-15 20:13:01,978 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-03-15 20:13:01,978 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-03-15 20:13:01,978 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-03-15 20:13:01,978 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-03-15 20:13:01,978 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-03-15 20:13:01,978 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-03-15 20:13:01,978 INFO L138 SettingsManager]: * sizeof long double=12 [2022-03-15 20:13:01,978 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-03-15 20:13:01,979 INFO L138 SettingsManager]: * Use constant arrays=true [2022-03-15 20:13:01,979 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-03-15 20:13:01,979 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-03-15 20:13:01,979 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-03-15 20:13:01,979 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-03-15 20:13:01,979 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-03-15 20:13:01,979 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-15 20:13:01,979 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-03-15 20:13:01,979 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_NestedInterpolation [2022-03-15 20:13:01,979 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-03-15 20:13:01,980 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-03-15 20:13:01,980 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-03-15 20:13:01,980 INFO L138 SettingsManager]: * Override the interpolant automaton setting of the refinement strategy=true [2022-03-15 20:13:01,980 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=VARIABLE_BASED_MOVER_CHECK [2022-03-15 20:13:01,980 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-03-15 20:13:01,980 INFO L138 SettingsManager]: * Interpolant automaton=MCR 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of data races in concurrent programs -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of error function in SV-COMP mode -> false [2022-03-15 20:13:02,180 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-03-15 20:13:02,196 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-03-15 20:13:02,197 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-03-15 20:13:02,198 INFO L271 PluginConnector]: Initializing CDTParser... [2022-03-15 20:13:02,206 INFO L275 PluginConnector]: CDTParser initialized [2022-03-15 20:13:02,207 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/04-mutex_47-fun_write.i [2022-03-15 20:13:02,269 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8af526e8a/dd0c65f0e0304c8aad6e4e92070881f4/FLAG8fa8f42de [2022-03-15 20:13:02,718 INFO L306 CDTParser]: Found 1 translation units. [2022-03-15 20:13:02,719 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/04-mutex_47-fun_write.i [2022-03-15 20:13:02,734 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8af526e8a/dd0c65f0e0304c8aad6e4e92070881f4/FLAG8fa8f42de [2022-03-15 20:13:02,751 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8af526e8a/dd0c65f0e0304c8aad6e4e92070881f4 [2022-03-15 20:13:02,753 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-03-15 20:13:02,754 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-03-15 20:13:02,756 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-03-15 20:13:02,756 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-03-15 20:13:02,758 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-03-15 20:13:02,759 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.03 08:13:02" (1/1) ... [2022-03-15 20:13:02,761 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6df8eb8f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 08:13:02, skipping insertion in model container [2022-03-15 20:13:02,761 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.03 08:13:02" (1/1) ... [2022-03-15 20:13:02,765 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-03-15 20:13:02,809 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-03-15 20:13:03,131 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-03-15 20:13:03,140 INFO L203 MainTranslator]: Completed pre-run [2022-03-15 20:13:03,179 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-03-15 20:13:03,235 INFO L208 MainTranslator]: Completed translation [2022-03-15 20:13:03,235 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 08:13:03 WrapperNode [2022-03-15 20:13:03,235 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-03-15 20:13:03,237 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-03-15 20:13:03,237 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-03-15 20:13:03,237 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-03-15 20:13:03,242 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 08:13:03" (1/1) ... [2022-03-15 20:13:03,269 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 08:13:03" (1/1) ... [2022-03-15 20:13:03,295 INFO L137 Inliner]: procedures = 263, calls = 23, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 67 [2022-03-15 20:13:03,295 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-03-15 20:13:03,296 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-03-15 20:13:03,296 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-03-15 20:13:03,296 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-03-15 20:13:03,301 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 08:13:03" (1/1) ... [2022-03-15 20:13:03,301 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 08:13:03" (1/1) ... [2022-03-15 20:13:03,304 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 08:13:03" (1/1) ... [2022-03-15 20:13:03,304 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 08:13:03" (1/1) ... [2022-03-15 20:13:03,318 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 08:13:03" (1/1) ... [2022-03-15 20:13:03,318 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 08:13:03" (1/1) ... [2022-03-15 20:13:03,324 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 08:13:03" (1/1) ... [2022-03-15 20:13:03,325 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-03-15 20:13:03,326 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-03-15 20:13:03,326 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-03-15 20:13:03,326 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-03-15 20:13:03,331 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 08:13:03" (1/1) ... [2022-03-15 20:13:03,336 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-15 20:13:03,343 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-15 20:13:03,352 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-03-15 20:13:03,358 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-03-15 20:13:03,382 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-03-15 20:13:03,383 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-03-15 20:13:03,383 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-03-15 20:13:03,383 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-03-15 20:13:03,383 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-03-15 20:13:03,383 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-03-15 20:13:03,383 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2022-03-15 20:13:03,384 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2022-03-15 20:13:03,384 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-03-15 20:13:03,384 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-03-15 20:13:03,384 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-03-15 20:13:03,385 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-03-15 20:13:03,455 INFO L234 CfgBuilder]: Building ICFG [2022-03-15 20:13:03,456 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-03-15 20:13:03,583 INFO L275 CfgBuilder]: Performing block encoding [2022-03-15 20:13:03,588 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-03-15 20:13:03,588 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-03-15 20:13:03,589 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.03 08:13:03 BoogieIcfgContainer [2022-03-15 20:13:03,589 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-03-15 20:13:03,590 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-03-15 20:13:03,590 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-03-15 20:13:03,593 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-03-15 20:13:03,593 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.03 08:13:02" (1/3) ... [2022-03-15 20:13:03,593 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6e8dc883 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.03 08:13:03, skipping insertion in model container [2022-03-15 20:13:03,593 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 08:13:03" (2/3) ... [2022-03-15 20:13:03,594 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6e8dc883 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.03 08:13:03, skipping insertion in model container [2022-03-15 20:13:03,594 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.03 08:13:03" (3/3) ... [2022-03-15 20:13:03,594 INFO L111 eAbstractionObserver]: Analyzing ICFG 04-mutex_47-fun_write.i [2022-03-15 20:13:03,598 WARN L150 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-03-15 20:13:03,598 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2022-03-15 20:13:03,598 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2022-03-15 20:13:03,598 INFO L534 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-03-15 20:13:03,617 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:13:03,617 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:13:03,617 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:13:03,617 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:13:03,617 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:13:03,617 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:13:03,617 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:13:03,618 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:13:03,618 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet30#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:13:03,618 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet30#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:13:03,618 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet30#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:13:03,618 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet30#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:13:03,618 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_f_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:13:03,619 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_f_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:13:03,619 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_f_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:13:03,619 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_f_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:13:03,619 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_f_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:13:03,619 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~ret31#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:13:03,619 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_f_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:13:03,619 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~ret31#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:13:03,619 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~ret31#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:13:03,620 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~ret31#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:13:03,620 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~ret31#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:13:03,620 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~ret31#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:13:03,620 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet32#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:13:03,620 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet32#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:13:03,621 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet32#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:13:03,621 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet32#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:13:03,621 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet32#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:13:03,621 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet32#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:13:03,621 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet32#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:13:03,621 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet32#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:13:03,621 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~ret31#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:13:03,621 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~ret31#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:13:03,622 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet32#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:13:03,622 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet32#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:13:03,622 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:13:03,622 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:13:03,622 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:13:03,622 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:13:03,624 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:13:03,624 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet30#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:13:03,624 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:13:03,625 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet32#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:13:03,625 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:13:03,625 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:13:03,625 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_f_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:13:03,625 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~ret31#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:13:03,628 INFO L148 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2022-03-15 20:13:03,656 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-03-15 20:13:03,661 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=Craig_NestedInterpolation, mInterpolantAutomaton=MCR, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mLazyFiniteAutomaton=false, 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=true, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR, mMcrOptimizeForkJoin=true, mMcrOverapproximateWrwc=true [2022-03-15 20:13:03,662 INFO L340 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2022-03-15 20:13:03,672 INFO L126 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2022-03-15 20:13:03,681 INFO L133 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 81 places, 77 transitions, 162 flow [2022-03-15 20:13:03,686 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 81 places, 77 transitions, 162 flow [2022-03-15 20:13:03,687 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 81 places, 77 transitions, 162 flow [2022-03-15 20:13:03,727 INFO L129 PetriNetUnfolder]: 0/76 cut-off events. [2022-03-15 20:13:03,727 INFO L130 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-03-15 20:13:03,729 INFO L84 FinitePrefix]: Finished finitePrefix Result has 81 conditions, 76 events. 0/76 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 46 event pairs, 0 based on Foata normal form. 0/72 useless extension candidates. Maximal degree in co-relation 0. Up to 2 conditions per place. [2022-03-15 20:13:03,732 INFO L116 LiptonReduction]: Number of co-enabled transitions 798 [2022-03-15 20:13:05,642 INFO L131 LiptonReduction]: Checked pairs total: 2120 [2022-03-15 20:13:05,643 INFO L133 LiptonReduction]: Total number of compositions: 58 [2022-03-15 20:13:05,649 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 25 places, 21 transitions, 50 flow [2022-03-15 20:13:05,674 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 77 states, 70 states have (on average 1.9142857142857144) internal successors, (134), 76 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 20:13:05,676 INFO L276 IsEmpty]: Start isEmpty. Operand has 77 states, 70 states have (on average 1.9142857142857144) internal successors, (134), 76 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 20:13:05,679 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-03-15 20:13:05,680 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 20:13:05,680 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-03-15 20:13:05,680 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 3 more)] === [2022-03-15 20:13:05,684 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 20:13:05,685 INFO L85 PathProgramCache]: Analyzing trace with hash 250164178, now seen corresponding path program 1 times [2022-03-15 20:13:05,701 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 20:13:05,701 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [579628945] [2022-03-15 20:13:05,701 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 20:13:05,702 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 20:13:05,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 20:13:05,825 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 20:13:05,826 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 20:13:05,826 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [579628945] [2022-03-15 20:13:05,826 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [579628945] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 20:13:05,827 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 20:13:05,827 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-03-15 20:13:05,828 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [958626471] [2022-03-15 20:13:05,828 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2022-03-15 20:13:05,830 INFO L249 McrAutomatonBuilder]: Started intersection. [2022-03-15 20:13:05,835 INFO L252 McrAutomatonBuilder]: Finished intersection with 6 states and 5 transitions. [2022-03-15 20:13:05,835 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2022-03-15 20:13:05,837 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2022-03-15 20:13:05,838 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-03-15 20:13:05,838 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 20:13:05,850 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-03-15 20:13:05,851 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-03-15 20:13:05,852 INFO L87 Difference]: Start difference. First operand has 77 states, 70 states have (on average 1.9142857142857144) internal successors, (134), 76 states have internal predecessors, (134), 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 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 20:13:05,896 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 20:13:05,898 INFO L93 Difference]: Finished difference Result 79 states and 136 transitions. [2022-03-15 20:13:05,900 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-03-15 20:13:05,901 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 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 5 [2022-03-15 20:13:05,907 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 20:13:05,913 INFO L225 Difference]: With dead ends: 79 [2022-03-15 20:13:05,913 INFO L226 Difference]: Without dead ends: 77 [2022-03-15 20:13:05,913 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 [2022-03-15 20:13:05,917 INFO L933 BasicCegarLoop]: 5 mSDtfsCounter, 7 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 5 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-15 20:13:05,918 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7 Valid, 5 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-15 20:13:05,929 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77 states. [2022-03-15 20:13:05,944 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77 to 69. [2022-03-15 20:13:05,946 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 69 states, 64 states have (on average 1.84375) internal successors, (118), 68 states have internal predecessors, (118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 20:13:05,950 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 69 states and 118 transitions. [2022-03-15 20:13:05,951 INFO L78 Accepts]: Start accepts. Automaton has 69 states and 118 transitions. Word has length 5 [2022-03-15 20:13:05,951 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 20:13:05,951 INFO L470 AbstractCegarLoop]: Abstraction has 69 states and 118 transitions. [2022-03-15 20:13:05,951 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 20:13:05,952 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 118 transitions. [2022-03-15 20:13:05,953 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-03-15 20:13:05,953 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 20:13:05,953 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-03-15 20:13:05,953 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-03-15 20:13:05,953 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 3 more)] === [2022-03-15 20:13:05,955 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 20:13:05,955 INFO L85 PathProgramCache]: Analyzing trace with hash -834663867, now seen corresponding path program 1 times [2022-03-15 20:13:05,956 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 20:13:05,956 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [795655910] [2022-03-15 20:13:05,956 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 20:13:05,957 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 20:13:05,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 20:13:06,051 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 20:13:06,052 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 20:13:06,052 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [795655910] [2022-03-15 20:13:06,052 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [795655910] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 20:13:06,052 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 20:13:06,052 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-03-15 20:13:06,052 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1534157825] [2022-03-15 20:13:06,052 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2022-03-15 20:13:06,053 INFO L249 McrAutomatonBuilder]: Started intersection. [2022-03-15 20:13:06,054 INFO L252 McrAutomatonBuilder]: Finished intersection with 7 states and 6 transitions. [2022-03-15 20:13:06,054 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2022-03-15 20:13:06,054 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2022-03-15 20:13:06,055 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-03-15 20:13:06,055 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 20:13:06,055 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-03-15 20:13:06,056 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-03-15 20:13:06,056 INFO L87 Difference]: Start difference. First operand 69 states and 118 transitions. Second operand has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 20:13:06,091 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 20:13:06,092 INFO L93 Difference]: Finished difference Result 76 states and 128 transitions. [2022-03-15 20:13:06,093 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-03-15 20:13:06,093 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 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 6 [2022-03-15 20:13:06,093 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 20:13:06,095 INFO L225 Difference]: With dead ends: 76 [2022-03-15 20:13:06,095 INFO L226 Difference]: Without dead ends: 68 [2022-03-15 20:13:06,095 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 [2022-03-15 20:13:06,096 INFO L933 BasicCegarLoop]: 5 mSDtfsCounter, 8 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 5 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-15 20:13:06,096 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [8 Valid, 5 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-15 20:13:06,097 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states. [2022-03-15 20:13:06,101 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 63. [2022-03-15 20:13:06,101 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 63 states, 59 states have (on average 1.7796610169491525) internal successors, (105), 62 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 20:13:06,102 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 105 transitions. [2022-03-15 20:13:06,102 INFO L78 Accepts]: Start accepts. Automaton has 63 states and 105 transitions. Word has length 6 [2022-03-15 20:13:06,102 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 20:13:06,102 INFO L470 AbstractCegarLoop]: Abstraction has 63 states and 105 transitions. [2022-03-15 20:13:06,102 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 20:13:06,102 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 105 transitions. [2022-03-15 20:13:06,103 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-03-15 20:13:06,103 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 20:13:06,103 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 20:13:06,103 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-03-15 20:13:06,103 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 3 more)] === [2022-03-15 20:13:06,104 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 20:13:06,104 INFO L85 PathProgramCache]: Analyzing trace with hash 1046965403, now seen corresponding path program 1 times [2022-03-15 20:13:06,106 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 20:13:06,106 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2017717944] [2022-03-15 20:13:06,106 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 20:13:06,113 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 20:13:06,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-03-15 20:13:06,142 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-03-15 20:13:06,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-03-15 20:13:06,180 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-03-15 20:13:06,180 INFO L628 BasicCegarLoop]: Counterexample is feasible [2022-03-15 20:13:06,180 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location t_funErr0ASSERT_VIOLATIONDATA_RACE (5 of 6 remaining) [2022-03-15 20:13:06,182 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (4 of 6 remaining) [2022-03-15 20:13:06,182 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (3 of 6 remaining) [2022-03-15 20:13:06,182 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (2 of 6 remaining) [2022-03-15 20:13:06,182 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATION (1 of 6 remaining) [2022-03-15 20:13:06,182 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (0 of 6 remaining) [2022-03-15 20:13:06,182 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-03-15 20:13:06,184 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2022-03-15 20:13:06,186 INFO L230 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-03-15 20:13:06,187 INFO L180 ceAbstractionStarter]: Computing trace abstraction results [2022-03-15 20:13:06,205 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.03 08:13:06 BasicIcfg [2022-03-15 20:13:06,205 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-03-15 20:13:06,209 INFO L158 Benchmark]: Toolchain (without parser) took 3451.23ms. Allocated memory was 197.1MB in the beginning and 310.4MB in the end (delta: 113.2MB). Free memory was 139.2MB in the beginning and 181.5MB in the end (delta: -42.3MB). Peak memory consumption was 71.2MB. Max. memory is 8.0GB. [2022-03-15 20:13:06,209 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 197.1MB. Free memory is still 157.4MB. There was no memory consumed. Max. memory is 8.0GB. [2022-03-15 20:13:06,219 INFO L158 Benchmark]: CACSL2BoogieTranslator took 480.14ms. Allocated memory is still 197.1MB. Free memory was 139.0MB in the beginning and 149.9MB in the end (delta: -10.9MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. [2022-03-15 20:13:06,220 INFO L158 Benchmark]: Boogie Procedure Inliner took 58.43ms. Allocated memory is still 197.1MB. Free memory was 149.9MB in the beginning and 147.3MB in the end (delta: 2.6MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. [2022-03-15 20:13:06,220 INFO L158 Benchmark]: Boogie Preprocessor took 29.69ms. Allocated memory is still 197.1MB. Free memory was 147.3MB in the beginning and 145.7MB in the end (delta: 1.6MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-03-15 20:13:06,220 INFO L158 Benchmark]: RCFGBuilder took 263.14ms. Allocated memory is still 197.1MB. Free memory was 145.7MB in the beginning and 133.2MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. [2022-03-15 20:13:06,221 INFO L158 Benchmark]: TraceAbstraction took 2614.79ms. Allocated memory was 197.1MB in the beginning and 310.4MB in the end (delta: 113.2MB). Free memory was 132.6MB in the beginning and 181.5MB in the end (delta: -48.9MB). Peak memory consumption was 64.9MB. Max. memory is 8.0GB. [2022-03-15 20:13:06,222 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13ms. Allocated memory is still 197.1MB. Free memory is still 157.4MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 480.14ms. Allocated memory is still 197.1MB. Free memory was 139.0MB in the beginning and 149.9MB in the end (delta: -10.9MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 58.43ms. Allocated memory is still 197.1MB. Free memory was 149.9MB in the beginning and 147.3MB in the end (delta: 2.6MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 29.69ms. Allocated memory is still 197.1MB. Free memory was 147.3MB in the beginning and 145.7MB in the end (delta: 1.6MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 263.14ms. Allocated memory is still 197.1MB. Free memory was 145.7MB in the beginning and 133.2MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. * TraceAbstraction took 2614.79ms. Allocated memory was 197.1MB in the beginning and 310.4MB in the end (delta: 113.2MB). Free memory was 132.6MB in the beginning and 181.5MB in the end (delta: -48.9MB). Peak memory consumption was 64.9MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 2.0s, 81 PlacesBefore, 25 PlacesAfterwards, 77 TransitionsBefore, 21 TransitionsAfterwards, 798 CoEnabledTransitionPairs, 6 FixpointIterations, 32 TrivialSequentialCompositions, 26 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 58 TotalNumberOfCompositions, 2120 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 984, positive: 806, positive conditional: 0, positive unconditional: 806, negative: 178, negative conditional: 0, negative unconditional: 178, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 447, positive: 417, positive conditional: 0, positive unconditional: 417, negative: 30, negative conditional: 0, negative unconditional: 30, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 984, positive: 389, positive conditional: 0, positive unconditional: 389, negative: 148, negative conditional: 0, negative unconditional: 148, unknown: 447, unknown conditional: 0, unknown unconditional: 447] , Statistics on independence cache: Total cache size (in pairs): 41, Positive cache size: 28, Positive conditional cache size: 0, Positive unconditional cache size: 28, Negative cache size: 13, Negative conditional cache size: 0, Negative unconditional cache size: 13 - 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: 925]: Data race detected Data race detected The following path leads to a data race: [L917] 0 int myglobal; [L918] 0 pthread_mutex_t mutex1 = { { 0, 0, 0, 0, 0, { { 0, 0 } } } }; [L919] 0 pthread_mutex_t mutex2 = { { 0, 0, 0, 0, 0, { { 0, 0 } } } }; [L930] 0 pthread_t id; [L931] FCALL, FORK 0 pthread_create(&id, ((void *)0), t_fun, ((void *)0)) VAL [id={3:0}, mutex1={1:0}, mutex2={2:0}, myglobal=0, pthread_create(&id, ((void *)0), t_fun, ((void *)0))=-1] [L925] CALL, EXPR 1 f() [L921] 1 return 5; [L925] RET, EXPR 1 f() [L925] 1 myglobal=f() VAL [arg={0:0}, arg={0:0}, f()=5, mutex1={1:0}, mutex2={2:0}, myglobal=5, myglobal=f()=25] [L933] 0 myglobal+1 VAL [id={3:0}, mutex1={1:0}, mutex2={2:0}, myglobal=5] [L925] 1 myglobal=f() VAL [arg={0:0}, arg={0:0}, f()=5, mutex1={1:0}, mutex2={2:0}, myglobal=5, myglobal=f()=25] Now there is a data race on ~myglobal~0 between C: myglobal+1 [933] and C: myglobal=f() [925] - UnprovableResult [Line: 933]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 933]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 935]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 931]: 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, 99 locations, 6 error locations. Started 1 CEGAR loops. OverallTime: 2.5s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 15 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 15 mSDsluCounter, 10 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 14 mSDsCounter, 2 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 71 IncrementalHoareTripleChecker+Invalid, 73 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 2 mSolverCounterUnsat, 10 mSDtfsCounter, 71 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=77occurred in iteration=0, InterpolantAutomatonStates: 6, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 13 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 19 NumberOfCodeBlocks, 19 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 9 ConstructedInterpolants, 0 QuantifiedInterpolants, 13 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2022-03-15 20:13:06,299 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...