/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-MCRwithDepranks-BasicCegarLoop.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/goblint-regression/13-privatized_44-traces-mine2_true.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.mcr-reduction-44898dd [2022-02-16 12:33:33,054 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-02-16 12:33:33,055 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-02-16 12:33:33,098 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-02-16 12:33:33,110 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-02-16 12:33:33,111 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-02-16 12:33:33,113 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-02-16 12:33:33,115 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-02-16 12:33:33,115 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-02-16 12:33:33,116 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-02-16 12:33:33,117 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-02-16 12:33:33,121 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-02-16 12:33:33,122 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-02-16 12:33:33,123 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-02-16 12:33:33,124 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-02-16 12:33:33,125 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-02-16 12:33:33,129 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-02-16 12:33:33,135 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-02-16 12:33:33,136 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-02-16 12:33:33,136 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-02-16 12:33:33,137 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-MCRwithDepranks-BasicCegarLoop.epf [2022-02-16 12:33:33,164 INFO L113 SettingsManager]: Loading preferences was successful [2022-02-16 12:33:33,164 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-02-16 12:33:33,165 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-02-16 12:33:33,165 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-02-16 12:33:33,166 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-02-16 12:33:33,166 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-02-16 12:33:33,166 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-02-16 12:33:33,166 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-02-16 12:33:33,166 INFO L138 SettingsManager]: * Use SBE=true [2022-02-16 12:33:33,167 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-02-16 12:33:33,167 INFO L138 SettingsManager]: * sizeof long=4 [2022-02-16 12:33:33,167 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-02-16 12:33:33,167 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-02-16 12:33:33,168 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-02-16 12:33:33,168 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-02-16 12:33:33,168 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-02-16 12:33:33,168 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-02-16 12:33:33,168 INFO L138 SettingsManager]: * sizeof long double=12 [2022-02-16 12:33:33,168 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-02-16 12:33:33,168 INFO L138 SettingsManager]: * Use constant arrays=true [2022-02-16 12:33:33,168 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-02-16 12:33:33,168 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-02-16 12:33:33,168 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-02-16 12:33:33,169 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-02-16 12:33:33,169 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-02-16 12:33:33,169 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-16 12:33:33,169 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-02-16 12:33:33,170 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-02-16 12:33:33,170 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-02-16 12:33:33,170 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-02-16 12:33:33,170 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-02-16 12:33:33,170 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-02-16 12:33:33,170 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-02-16 12:33:33,170 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=MCR_WITH_DEPRANKS [2022-02-16 12:33:33,171 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-02-16 12:33:33,353 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-02-16 12:33:33,366 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-02-16 12:33:33,368 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-02-16 12:33:33,368 INFO L271 PluginConnector]: Initializing CDTParser... [2022-02-16 12:33:33,371 INFO L275 PluginConnector]: CDTParser initialized [2022-02-16 12:33:33,372 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/13-privatized_44-traces-mine2_true.i [2022-02-16 12:33:33,420 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2c53f40c1/3d0b5bd543b045c297aa8dd45967e198/FLAG8ce8b32be [2022-02-16 12:33:33,809 INFO L306 CDTParser]: Found 1 translation units. [2022-02-16 12:33:33,809 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_44-traces-mine2_true.i [2022-02-16 12:33:33,819 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2c53f40c1/3d0b5bd543b045c297aa8dd45967e198/FLAG8ce8b32be [2022-02-16 12:33:33,828 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2c53f40c1/3d0b5bd543b045c297aa8dd45967e198 [2022-02-16 12:33:33,829 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-02-16 12:33:33,831 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-02-16 12:33:33,834 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-02-16 12:33:33,834 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-02-16 12:33:33,837 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-02-16 12:33:33,837 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.02 12:33:33" (1/1) ... [2022-02-16 12:33:33,838 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2113a22e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 12:33:33, skipping insertion in model container [2022-02-16 12:33:33,838 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.02 12:33:33" (1/1) ... [2022-02-16 12:33:33,843 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-02-16 12:33:33,884 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-02-16 12:33:34,008 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_44-traces-mine2_true.i[1089,1102] [2022-02-16 12:33:34,098 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-16 12:33:34,110 INFO L203 MainTranslator]: Completed pre-run [2022-02-16 12:33:34,118 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_44-traces-mine2_true.i[1089,1102] [2022-02-16 12:33:34,133 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-16 12:33:34,159 INFO L208 MainTranslator]: Completed translation [2022-02-16 12:33:34,160 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 12:33:34 WrapperNode [2022-02-16 12:33:34,160 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-02-16 12:33:34,160 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-02-16 12:33:34,161 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-02-16 12:33:34,161 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-02-16 12:33:34,165 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 12:33:34" (1/1) ... [2022-02-16 12:33:34,190 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 12:33:34" (1/1) ... [2022-02-16 12:33:34,207 INFO L137 Inliner]: procedures = 162, calls = 29, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 53 [2022-02-16 12:33:34,207 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-02-16 12:33:34,208 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-02-16 12:33:34,208 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-02-16 12:33:34,208 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-02-16 12:33:34,213 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 12:33:34" (1/1) ... [2022-02-16 12:33:34,213 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 12:33:34" (1/1) ... [2022-02-16 12:33:34,215 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 12:33:34" (1/1) ... [2022-02-16 12:33:34,216 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 12:33:34" (1/1) ... [2022-02-16 12:33:34,218 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 12:33:34" (1/1) ... [2022-02-16 12:33:34,219 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 12:33:34" (1/1) ... [2022-02-16 12:33:34,220 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 12:33:34" (1/1) ... [2022-02-16 12:33:34,221 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-02-16 12:33:34,222 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-02-16 12:33:34,222 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-02-16 12:33:34,222 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-02-16 12:33:34,223 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 12:33:34" (1/1) ... [2022-02-16 12:33:34,233 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-16 12:33:34,239 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-16 12:33:34,248 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) [2022-02-16 12:33:34,250 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 [2022-02-16 12:33:34,270 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-02-16 12:33:34,270 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-02-16 12:33:34,270 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-02-16 12:33:34,270 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-02-16 12:33:34,270 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2022-02-16 12:33:34,270 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2022-02-16 12:33:34,271 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-02-16 12:33:34,271 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-02-16 12:33:34,271 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-02-16 12:33:34,271 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-02-16 12:33:34,272 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-02-16 12:33:34,368 INFO L234 CfgBuilder]: Building ICFG [2022-02-16 12:33:34,369 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-02-16 12:33:34,474 INFO L275 CfgBuilder]: Performing block encoding [2022-02-16 12:33:34,478 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-02-16 12:33:34,479 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-02-16 12:33:34,480 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.02 12:33:34 BoogieIcfgContainer [2022-02-16 12:33:34,480 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-02-16 12:33:34,481 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-02-16 12:33:34,481 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-02-16 12:33:34,483 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-02-16 12:33:34,483 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.02 12:33:33" (1/3) ... [2022-02-16 12:33:34,484 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3d18d97f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.02 12:33:34, skipping insertion in model container [2022-02-16 12:33:34,484 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 12:33:34" (2/3) ... [2022-02-16 12:33:34,484 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3d18d97f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.02 12:33:34, skipping insertion in model container [2022-02-16 12:33:34,484 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.02 12:33:34" (3/3) ... [2022-02-16 12:33:34,485 INFO L111 eAbstractionObserver]: Analyzing ICFG 13-privatized_44-traces-mine2_true.i [2022-02-16 12:33:34,488 WARN L150 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-02-16 12:33:34,488 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-02-16 12:33:34,488 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-02-16 12:33:34,488 INFO L534 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-02-16 12:33:34,507 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 12:33:34,507 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 12:33:34,507 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 12:33:34,508 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 12:33:34,508 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 12:33:34,508 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 12:33:34,508 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 12:33:34,508 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 12:33:34,508 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 12:33:34,509 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 12:33:34,509 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 12:33:34,509 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 12:33:34,509 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 12:33:34,509 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 12:33:34,510 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 12:33:34,510 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 12:33:34,510 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 12:33:34,510 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 12:33:34,511 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 12:33:34,511 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 12:33:34,513 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 12:33:34,513 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 12:33:34,513 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 12:33:34,513 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 12:33:34,513 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 12:33:34,514 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 12:33:34,515 INFO L148 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-02-16 12:33:34,542 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-02-16 12:33:34,546 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, 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=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2022-02-16 12:33:34,546 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2022-02-16 12:33:34,552 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 79 places, 77 transitions, 159 flow [2022-02-16 12:33:34,588 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 318 states, 316 states have (on average 1.8417721518987342) internal successors, (582), 317 states have internal predecessors, (582), 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) [2022-02-16 12:33:34,813 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 7625 transitions and produced 4297 states. [2022-02-16 12:33:34,843 INFO L276 IsEmpty]: Start isEmpty. Operand has 4297 states, 3549 states have (on average 1.2386587771203157) internal successors, (4396), 4296 states have internal predecessors, (4396), 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) [2022-02-16 12:33:34,852 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2022-02-16 12:33:34,852 INFO L506 BasicCegarLoop]: Found error trace [2022-02-16 12:33:34,853 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-16 12:33:34,853 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-02-16 12:33:34,860 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-16 12:33:34,860 INFO L85 PathProgramCache]: Analyzing trace with hash 47225093, now seen corresponding path program 1 times [2022-02-16 12:33:34,869 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-16 12:33:34,869 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1860688183] [2022-02-16 12:33:34,870 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-16 12:33:34,871 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-16 12:33:34,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-16 12:33:35,152 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-16 12:33:35,153 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-16 12:33:35,153 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1860688183] [2022-02-16 12:33:35,153 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1860688183] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-16 12:33:35,153 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-16 12:33:35,154 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-16 12:33:35,154 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1139538324] [2022-02-16 12:33:35,155 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-16 12:33:35,156 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-16 12:33:35,157 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-16 12:33:35,169 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-16 12:33:35,169 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-16 12:33:35,200 INFO L87 Difference]: Start difference. First operand has 4297 states, 3549 states have (on average 1.2386587771203157) internal successors, (4396), 4296 states have internal predecessors, (4396), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 5 states, 5 states have (on average 8.4) internal successors, (42), 5 states have internal predecessors, (42), 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) [2022-02-16 12:33:35,345 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-16 12:33:35,345 INFO L93 Difference]: Finished difference Result 2652 states and 2676 transitions. [2022-02-16 12:33:35,346 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-02-16 12:33:35,347 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.4) internal successors, (42), 5 states have internal predecessors, (42), 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 42 [2022-02-16 12:33:35,348 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-16 12:33:35,359 INFO L225 Difference]: With dead ends: 2652 [2022-02-16 12:33:35,359 INFO L226 Difference]: Without dead ends: 553 [2022-02-16 12:33:35,361 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2022-02-16 12:33:35,363 INFO L933 BasicCegarLoop]: 82 mSDtfsCounter, 74 mSDsluCounter, 170 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 74 SdHoareTripleChecker+Valid, 250 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-02-16 12:33:35,363 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [74 Valid, 250 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-02-16 12:33:35,376 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 553 states. [2022-02-16 12:33:35,393 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 553 to 157. [2022-02-16 12:33:35,394 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 157 states, 155 states have (on average 1.1161290322580646) internal successors, (173), 156 states have internal predecessors, (173), 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) [2022-02-16 12:33:35,394 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 157 states to 157 states and 173 transitions. [2022-02-16 12:33:35,395 INFO L78 Accepts]: Start accepts. Automaton has 157 states and 173 transitions. Word has length 42 [2022-02-16 12:33:35,395 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-16 12:33:35,395 INFO L470 AbstractCegarLoop]: Abstraction has 157 states and 173 transitions. [2022-02-16 12:33:35,395 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.4) internal successors, (42), 5 states have internal predecessors, (42), 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) [2022-02-16 12:33:35,396 INFO L276 IsEmpty]: Start isEmpty. Operand 157 states and 173 transitions. [2022-02-16 12:33:35,396 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2022-02-16 12:33:35,396 INFO L506 BasicCegarLoop]: Found error trace [2022-02-16 12:33:35,397 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-16 12:33:35,397 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-02-16 12:33:35,397 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-02-16 12:33:35,397 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-16 12:33:35,397 INFO L85 PathProgramCache]: Analyzing trace with hash 1368816933, now seen corresponding path program 1 times [2022-02-16 12:33:35,398 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-16 12:33:35,398 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1925770243] [2022-02-16 12:33:35,398 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-16 12:33:35,398 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-16 12:33:35,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-16 12:33:35,466 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-16 12:33:35,467 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-16 12:33:35,467 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1925770243] [2022-02-16 12:33:35,467 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1925770243] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-16 12:33:35,467 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-16 12:33:35,467 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-02-16 12:33:35,467 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [731538654] [2022-02-16 12:33:35,467 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-16 12:33:35,468 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-02-16 12:33:35,468 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-16 12:33:35,469 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-02-16 12:33:35,469 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-02-16 12:33:35,469 INFO L87 Difference]: Start difference. First operand 157 states and 173 transitions. Second operand has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 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) [2022-02-16 12:33:35,484 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-16 12:33:35,484 INFO L93 Difference]: Finished difference Result 83 states and 82 transitions. [2022-02-16 12:33:35,484 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-16 12:33:35,485 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 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 46 [2022-02-16 12:33:35,485 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-16 12:33:35,485 INFO L225 Difference]: With dead ends: 83 [2022-02-16 12:33:35,485 INFO L226 Difference]: Without dead ends: 69 [2022-02-16 12:33:35,485 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 [2022-02-16 12:33:35,486 INFO L933 BasicCegarLoop]: 60 mSDtfsCounter, 22 mSDsluCounter, 31 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 90 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-02-16 12:33:35,487 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [22 Valid, 90 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-02-16 12:33:35,487 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69 states. [2022-02-16 12:33:35,489 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69 to 69. [2022-02-16 12:33:35,489 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 69 states, 67 states have (on average 1.0149253731343284) internal successors, (68), 68 states have internal predecessors, (68), 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) [2022-02-16 12:33:35,489 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 69 states and 68 transitions. [2022-02-16 12:33:35,490 INFO L78 Accepts]: Start accepts. Automaton has 69 states and 68 transitions. Word has length 46 [2022-02-16 12:33:35,490 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-16 12:33:35,490 INFO L470 AbstractCegarLoop]: Abstraction has 69 states and 68 transitions. [2022-02-16 12:33:35,490 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 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) [2022-02-16 12:33:35,490 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 68 transitions. [2022-02-16 12:33:35,491 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2022-02-16 12:33:35,491 INFO L506 BasicCegarLoop]: Found error trace [2022-02-16 12:33:35,491 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-16 12:33:35,491 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-02-16 12:33:35,491 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-02-16 12:33:35,492 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-16 12:33:35,492 INFO L85 PathProgramCache]: Analyzing trace with hash -1612742903, now seen corresponding path program 1 times [2022-02-16 12:33:35,492 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-16 12:33:35,492 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [948221224] [2022-02-16 12:33:35,492 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-16 12:33:35,492 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-16 12:33:35,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-16 12:33:35,576 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-16 12:33:35,576 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-16 12:33:35,576 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [948221224] [2022-02-16 12:33:35,576 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [948221224] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-16 12:33:35,576 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-16 12:33:35,577 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-02-16 12:33:35,577 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [347072707] [2022-02-16 12:33:35,577 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-16 12:33:35,577 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-02-16 12:33:35,577 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-16 12:33:35,578 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-02-16 12:33:35,578 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-16 12:33:35,578 INFO L87 Difference]: Start difference. First operand 69 states and 68 transitions. Second operand has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 6 states have internal predecessors, (50), 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) [2022-02-16 12:33:35,607 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-16 12:33:35,608 INFO L93 Difference]: Finished difference Result 43 states and 42 transitions. [2022-02-16 12:33:35,608 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-16 12:33:35,608 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 6 states have internal predecessors, (50), 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 50 [2022-02-16 12:33:35,608 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-16 12:33:35,609 INFO L225 Difference]: With dead ends: 43 [2022-02-16 12:33:35,609 INFO L226 Difference]: Without dead ends: 0 [2022-02-16 12:33:35,609 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-02-16 12:33:35,611 INFO L933 BasicCegarLoop]: 28 mSDtfsCounter, 33 mSDsluCounter, 43 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 70 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-02-16 12:33:35,612 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [33 Valid, 70 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-02-16 12:33:35,613 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-02-16 12:33:35,613 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-02-16 12:33:35,613 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 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) [2022-02-16 12:33:35,613 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-02-16 12:33:35,614 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 50 [2022-02-16 12:33:35,615 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-16 12:33:35,615 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-02-16 12:33:35,615 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 6 states have internal predecessors, (50), 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) [2022-02-16 12:33:35,615 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-02-16 12:33:35,616 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-16 12:33:35,617 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 3 remaining) [2022-02-16 12:33:35,618 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (1 of 3 remaining) [2022-02-16 12:33:35,620 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATION (0 of 3 remaining) [2022-02-16 12:33:35,620 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-02-16 12:33:35,622 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2022-02-16 12:33:35,623 INFO L230 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-02-16 12:33:35,623 INFO L180 ceAbstractionStarter]: Computing trace abstraction results [2022-02-16 12:33:35,629 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.02 12:33:35 BasicIcfg [2022-02-16 12:33:35,630 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-02-16 12:33:35,630 INFO L158 Benchmark]: Toolchain (without parser) took 1799.13ms. Allocated memory was 187.7MB in the beginning and 241.2MB in the end (delta: 53.5MB). Free memory was 129.1MB in the beginning and 174.3MB in the end (delta: -45.2MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB. [2022-02-16 12:33:35,632 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 187.7MB. Free memory is still 146.6MB. There was no memory consumed. Max. memory is 8.0GB. [2022-02-16 12:33:35,633 INFO L158 Benchmark]: CACSL2BoogieTranslator took 325.70ms. Allocated memory was 187.7MB in the beginning and 241.2MB in the end (delta: 53.5MB). Free memory was 128.9MB in the beginning and 203.7MB in the end (delta: -74.8MB). Peak memory consumption was 8.7MB. Max. memory is 8.0GB. [2022-02-16 12:33:35,633 INFO L158 Benchmark]: Boogie Procedure Inliner took 47.06ms. Allocated memory is still 241.2MB. Free memory was 203.7MB in the beginning and 201.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-02-16 12:33:35,633 INFO L158 Benchmark]: Boogie Preprocessor took 12.99ms. Allocated memory is still 241.2MB. Free memory was 201.6MB in the beginning and 200.6MB in the end (delta: 1.0MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-02-16 12:33:35,633 INFO L158 Benchmark]: RCFGBuilder took 258.14ms. Allocated memory is still 241.2MB. Free memory was 200.0MB in the beginning and 187.5MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. [2022-02-16 12:33:35,633 INFO L158 Benchmark]: TraceAbstraction took 1148.67ms. Allocated memory is still 241.2MB. Free memory was 186.9MB in the beginning and 174.3MB in the end (delta: 12.7MB). Peak memory consumption was 13.7MB. Max. memory is 8.0GB. [2022-02-16 12:33:35,635 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11ms. Allocated memory is still 187.7MB. Free memory is still 146.6MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 325.70ms. Allocated memory was 187.7MB in the beginning and 241.2MB in the end (delta: 53.5MB). Free memory was 128.9MB in the beginning and 203.7MB in the end (delta: -74.8MB). Peak memory consumption was 8.7MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 47.06ms. Allocated memory is still 241.2MB. Free memory was 203.7MB in the beginning and 201.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 12.99ms. Allocated memory is still 241.2MB. Free memory was 201.6MB in the beginning and 200.6MB in the end (delta: 1.0MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 258.14ms. Allocated memory is still 241.2MB. Free memory was 200.0MB in the beginning and 187.5MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. * TraceAbstraction took 1148.67ms. Allocated memory is still 241.2MB. Free memory was 186.9MB in the beginning and 174.3MB in the end (delta: 12.7MB). Peak memory consumption was 13.7MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Independence relation benchmarks ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 0, Positive cache size: 0, Positive conditional cache size: 0, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Independence queries for same thread: 0 - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 19]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 19]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 90 locations, 3 error locations. Started 1 CEGAR loops. OverallTime: 1.1s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.3s, PartialOrderReductionTime: 0.2s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 129 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 129 mSDsluCounter, 410 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 244 mSDsCounter, 19 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 73 IncrementalHoareTripleChecker+Invalid, 92 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 19 mSolverCounterUnsat, 170 mSDtfsCounter, 73 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 21 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=4297occurred in iteration=0, InterpolantAutomatonStates: 17, 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, 3 MinimizatonAttempts, 396 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 138 NumberOfCodeBlocks, 138 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 135 ConstructedInterpolants, 0 QuantifiedInterpolants, 351 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 - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-02-16 12:33:35,667 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...