/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe.epf -i ../../../trunk/examples/svcomp/pthread-ext/19_time_var_mutex.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-fae578e [2019-12-18 23:42:45,829 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-18 23:42:45,831 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-18 23:42:45,850 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-18 23:42:45,850 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-18 23:42:45,852 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-18 23:42:45,853 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-18 23:42:45,855 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-18 23:42:45,856 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-18 23:42:45,857 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-18 23:42:45,858 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-18 23:42:45,859 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-18 23:42:45,860 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-18 23:42:45,861 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-18 23:42:45,862 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-18 23:42:45,863 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-18 23:42:45,864 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-18 23:42:45,865 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-18 23:42:45,866 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-18 23:42:45,868 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-18 23:42:45,869 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-18 23:42:45,870 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-18 23:42:45,872 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-18 23:42:45,872 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-18 23:42:45,874 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-12-18 23:42:45,877 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-18 23:42:45,878 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-18 23:42:45,879 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-18 23:42:45,880 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-18 23:42:45,881 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-18 23:42:45,881 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-18 23:42:45,882 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-18 23:42:45,882 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-18 23:42:45,882 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-18 23:42:45,883 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-18 23:42:45,884 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-18 23:42:45,884 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe.epf [2019-12-18 23:42:45,898 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-18 23:42:45,898 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-18 23:42:45,899 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-18 23:42:45,900 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-18 23:42:45,900 INFO L138 SettingsManager]: * Use SBE=true [2019-12-18 23:42:45,900 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-18 23:42:45,900 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-18 23:42:45,900 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-18 23:42:45,901 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-18 23:42:45,901 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-18 23:42:45,901 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-18 23:42:45,901 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-18 23:42:45,901 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-18 23:42:45,902 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-18 23:42:45,902 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-18 23:42:45,902 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-18 23:42:45,902 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-18 23:42:45,902 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-18 23:42:45,903 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-18 23:42:45,903 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-18 23:42:45,903 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-18 23:42:45,903 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-18 23:42:45,903 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-18 23:42:45,904 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-18 23:42:45,904 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-18 23:42:45,904 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-12-18 23:42:45,904 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-18 23:42:45,905 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2019-12-18 23:42:45,905 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-18 23:42:45,905 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-18 23:42:46,195 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-18 23:42:46,217 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-18 23:42:46,221 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-18 23:42:46,222 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-18 23:42:46,223 INFO L275 PluginConnector]: CDTParser initialized [2019-12-18 23:42:46,224 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-ext/19_time_var_mutex.i [2019-12-18 23:42:46,311 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f1340737f/32788c82ecae45c59dd167a85f3d7dd3/FLAG38840ff00 [2019-12-18 23:42:46,891 INFO L306 CDTParser]: Found 1 translation units. [2019-12-18 23:42:46,892 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-ext/19_time_var_mutex.i [2019-12-18 23:42:46,904 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f1340737f/32788c82ecae45c59dd167a85f3d7dd3/FLAG38840ff00 [2019-12-18 23:42:47,199 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f1340737f/32788c82ecae45c59dd167a85f3d7dd3 [2019-12-18 23:42:47,208 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-18 23:42:47,210 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-12-18 23:42:47,211 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-18 23:42:47,211 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-18 23:42:47,214 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-18 23:42:47,215 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.12 11:42:47" (1/1) ... [2019-12-18 23:42:47,218 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6d5e65ed and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 11:42:47, skipping insertion in model container [2019-12-18 23:42:47,219 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.12 11:42:47" (1/1) ... [2019-12-18 23:42:47,226 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-18 23:42:47,266 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-18 23:42:47,697 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-18 23:42:47,708 INFO L203 MainTranslator]: Completed pre-run [2019-12-18 23:42:47,752 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-18 23:42:47,828 INFO L208 MainTranslator]: Completed translation [2019-12-18 23:42:47,829 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 11:42:47 WrapperNode [2019-12-18 23:42:47,829 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-18 23:42:47,830 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-18 23:42:47,830 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-18 23:42:47,830 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-18 23:42:47,839 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 11:42:47" (1/1) ... [2019-12-18 23:42:47,854 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 11:42:47" (1/1) ... [2019-12-18 23:42:47,879 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-18 23:42:47,879 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-18 23:42:47,879 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-18 23:42:47,879 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-18 23:42:47,888 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 11:42:47" (1/1) ... [2019-12-18 23:42:47,889 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 11:42:47" (1/1) ... [2019-12-18 23:42:47,892 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 11:42:47" (1/1) ... [2019-12-18 23:42:47,892 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 11:42:47" (1/1) ... [2019-12-18 23:42:47,898 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 11:42:47" (1/1) ... [2019-12-18 23:42:47,900 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 11:42:47" (1/1) ... [2019-12-18 23:42:47,902 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 11:42:47" (1/1) ... [2019-12-18 23:42:47,905 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-18 23:42:47,905 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-18 23:42:47,905 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-18 23:42:47,906 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-18 23:42:47,906 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 11:42:47" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-18 23:42:47,973 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-12-18 23:42:47,973 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2019-12-18 23:42:47,974 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2019-12-18 23:42:47,974 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-12-18 23:42:47,974 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-18 23:42:47,974 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-12-18 23:42:47,974 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-12-18 23:42:47,974 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-18 23:42:47,975 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-18 23:42:47,977 WARN L205 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2019-12-18 23:42:48,128 INFO L1525 $ProcedureCfgBuilder]: dropping label inside atomic statement: __VERIFIER_atomic_acquire_returnLabel [2019-12-18 23:42:48,129 INFO L1525 $ProcedureCfgBuilder]: dropping label inside atomic statement: __VERIFIER_atomic_acquire_returnLabel#2 [2019-12-18 23:42:48,130 INFO L1525 $ProcedureCfgBuilder]: dropping label inside atomic statement: __VERIFIER_atomic_release_returnLabel [2019-12-18 23:42:48,135 INFO L1525 $ProcedureCfgBuilder]: dropping label inside atomic statement: __VERIFIER_atomic_release_returnLabel#2 [2019-12-18 23:42:48,245 INFO L1525 $ProcedureCfgBuilder]: dropping label inside atomic statement: __VERIFIER_atomic_acquire_returnLabel [2019-12-18 23:42:48,247 INFO L1525 $ProcedureCfgBuilder]: dropping label inside atomic statement: __VERIFIER_atomic_release_returnLabel [2019-12-18 23:42:48,337 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-18 23:42:48,338 INFO L287 CfgBuilder]: Removed 6 assume(true) statements. [2019-12-18 23:42:48,339 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.12 11:42:48 BoogieIcfgContainer [2019-12-18 23:42:48,339 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-18 23:42:48,344 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-18 23:42:48,344 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-18 23:42:48,350 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-18 23:42:48,350 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.12 11:42:47" (1/3) ... [2019-12-18 23:42:48,351 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4ef7607e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.12 11:42:48, skipping insertion in model container [2019-12-18 23:42:48,352 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 11:42:47" (2/3) ... [2019-12-18 23:42:48,352 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4ef7607e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.12 11:42:48, skipping insertion in model container [2019-12-18 23:42:48,352 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.12 11:42:48" (3/3) ... [2019-12-18 23:42:48,354 INFO L109 eAbstractionObserver]: Analyzing ICFG 19_time_var_mutex.i [2019-12-18 23:42:48,365 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2019-12-18 23:42:48,366 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-18 23:42:48,377 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2019-12-18 23:42:48,378 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2019-12-18 23:42:48,410 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 23:42:48,411 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 23:42:48,411 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 23:42:48,411 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0___VERIFIER_atomic_acquire_#in~m.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 23:42:48,411 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0___VERIFIER_atomic_acquire_~m.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 23:42:48,411 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0___VERIFIER_atomic_acquire_~m.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 23:42:48,412 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 23:42:48,412 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0___VERIFIER_atomic_acquire_#t~mem3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 23:42:48,412 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0___VERIFIER_atomic_acquire_#in~m.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 23:42:48,414 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0___VERIFIER_atomic_acquire_~m.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 23:42:48,414 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0___VERIFIER_atomic_acquire_~m.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 23:42:48,414 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0___VERIFIER_atomic_acquire_#in~m.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 23:42:48,414 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0___VERIFIER_atomic_acquire_#t~mem3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 23:42:48,415 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0___VERIFIER_atomic_acquire_#in~m.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 23:42:48,415 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0___VERIFIER_atomic_release_#in~m.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 23:42:48,415 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0___VERIFIER_atomic_release_~m.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 23:42:48,416 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0___VERIFIER_atomic_release_#in~m.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 23:42:48,416 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0___VERIFIER_atomic_release_~m.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 23:42:48,416 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0___VERIFIER_atomic_release_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 23:42:48,417 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0___VERIFIER_atomic_release_#in~m.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 23:42:48,417 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0___VERIFIER_atomic_release_~m.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 23:42:48,418 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0___VERIFIER_atomic_release_#in~m.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 23:42:48,418 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0___VERIFIER_atomic_release_~m.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 23:42:48,418 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0___VERIFIER_atomic_release_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 23:42:48,419 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 23:42:48,419 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 23:42:48,423 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0___VERIFIER_atomic_acquire_#in~m.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 23:42:48,423 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0___VERIFIER_atomic_release_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 23:42:48,423 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 23:42:48,424 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 23:42:48,424 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0___VERIFIER_atomic_release_#in~m.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 23:42:48,424 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0___VERIFIER_atomic_acquire_#in~m.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 23:42:48,424 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0___VERIFIER_atomic_acquire_#t~mem3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 23:42:48,425 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0___VERIFIER_atomic_acquire_~m.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 23:42:48,425 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0___VERIFIER_atomic_release_~m.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 23:42:48,425 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0___VERIFIER_atomic_acquire_~m.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 23:42:48,425 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0___VERIFIER_atomic_release_#in~m.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 23:42:48,426 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 23:42:48,426 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0___VERIFIER_atomic_release_~m.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 23:42:48,426 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 23:42:48,444 INFO L249 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2019-12-18 23:42:48,464 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-18 23:42:48,464 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-18 23:42:48,464 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-18 23:42:48,464 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-18 23:42:48,465 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-18 23:42:48,465 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-18 23:42:48,465 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-18 23:42:48,465 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-18 23:42:48,476 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 50 places, 50 transitions [2019-12-18 23:42:48,502 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 255 states. [2019-12-18 23:42:48,507 INFO L276 IsEmpty]: Start isEmpty. Operand 255 states. [2019-12-18 23:42:48,514 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2019-12-18 23:42:48,514 INFO L403 BasicCegarLoop]: Found error trace [2019-12-18 23:42:48,515 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-18 23:42:48,515 INFO L410 AbstractCegarLoop]: === Iteration 1 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-18 23:42:48,520 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-18 23:42:48,521 INFO L82 PathProgramCache]: Analyzing trace with hash 1261052757, now seen corresponding path program 1 times [2019-12-18 23:42:48,528 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-18 23:42:48,528 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [11831564] [2019-12-18 23:42:48,528 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-18 23:42:48,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-18 23:42:48,771 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-18 23:42:48,772 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [11831564] [2019-12-18 23:42:48,773 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-18 23:42:48,773 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-18 23:42:48,774 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [274209569] [2019-12-18 23:42:48,780 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-18 23:42:48,781 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-18 23:42:48,792 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-18 23:42:48,792 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-18 23:42:48,794 INFO L87 Difference]: Start difference. First operand 255 states. Second operand 3 states. [2019-12-18 23:42:48,841 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-18 23:42:48,842 INFO L93 Difference]: Finished difference Result 255 states and 475 transitions. [2019-12-18 23:42:48,842 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-18 23:42:48,844 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 20 [2019-12-18 23:42:48,844 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-18 23:42:48,861 INFO L225 Difference]: With dead ends: 255 [2019-12-18 23:42:48,861 INFO L226 Difference]: Without dead ends: 215 [2019-12-18 23:42:48,868 INFO L631 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 [2019-12-18 23:42:48,893 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 215 states. [2019-12-18 23:42:48,927 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 215 to 215. [2019-12-18 23:42:48,929 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 215 states. [2019-12-18 23:42:48,933 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 215 states to 215 states and 391 transitions. [2019-12-18 23:42:48,935 INFO L78 Accepts]: Start accepts. Automaton has 215 states and 391 transitions. Word has length 20 [2019-12-18 23:42:48,935 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-18 23:42:48,935 INFO L462 AbstractCegarLoop]: Abstraction has 215 states and 391 transitions. [2019-12-18 23:42:48,936 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-18 23:42:48,936 INFO L276 IsEmpty]: Start isEmpty. Operand 215 states and 391 transitions. [2019-12-18 23:42:48,937 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2019-12-18 23:42:48,937 INFO L403 BasicCegarLoop]: Found error trace [2019-12-18 23:42:48,937 INFO L411 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] [2019-12-18 23:42:48,938 INFO L410 AbstractCegarLoop]: === Iteration 2 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-18 23:42:48,938 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-18 23:42:48,938 INFO L82 PathProgramCache]: Analyzing trace with hash 661339700, now seen corresponding path program 1 times [2019-12-18 23:42:48,939 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-18 23:42:48,939 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [66712178] [2019-12-18 23:42:48,939 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-18 23:42:48,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-18 23:42:49,042 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-18 23:42:49,042 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [66712178] [2019-12-18 23:42:49,043 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-18 23:42:49,043 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-18 23:42:49,043 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [433282153] [2019-12-18 23:42:49,045 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-18 23:42:49,045 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-18 23:42:49,045 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-18 23:42:49,046 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-18 23:42:49,046 INFO L87 Difference]: Start difference. First operand 215 states and 391 transitions. Second operand 3 states. [2019-12-18 23:42:49,079 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-18 23:42:49,079 INFO L93 Difference]: Finished difference Result 226 states and 392 transitions. [2019-12-18 23:42:49,080 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-18 23:42:49,080 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 22 [2019-12-18 23:42:49,080 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-18 23:42:49,082 INFO L225 Difference]: With dead ends: 226 [2019-12-18 23:42:49,082 INFO L226 Difference]: Without dead ends: 166 [2019-12-18 23:42:49,083 INFO L631 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 [2019-12-18 23:42:49,086 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 166 states. [2019-12-18 23:42:49,112 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 166 to 154. [2019-12-18 23:42:49,112 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 154 states. [2019-12-18 23:42:49,116 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 154 states to 154 states and 260 transitions. [2019-12-18 23:42:49,118 INFO L78 Accepts]: Start accepts. Automaton has 154 states and 260 transitions. Word has length 22 [2019-12-18 23:42:49,118 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-18 23:42:49,119 INFO L462 AbstractCegarLoop]: Abstraction has 154 states and 260 transitions. [2019-12-18 23:42:49,119 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-18 23:42:49,119 INFO L276 IsEmpty]: Start isEmpty. Operand 154 states and 260 transitions. [2019-12-18 23:42:49,121 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2019-12-18 23:42:49,121 INFO L403 BasicCegarLoop]: Found error trace [2019-12-18 23:42:49,121 INFO L411 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] [2019-12-18 23:42:49,121 INFO L410 AbstractCegarLoop]: === Iteration 3 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-18 23:42:49,122 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-18 23:42:49,122 INFO L82 PathProgramCache]: Analyzing trace with hash -1608531331, now seen corresponding path program 1 times [2019-12-18 23:42:49,122 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-18 23:42:49,122 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1767312055] [2019-12-18 23:42:49,123 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-18 23:42:49,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-18 23:42:49,190 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-18 23:42:49,190 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1767312055] [2019-12-18 23:42:49,191 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-18 23:42:49,191 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-18 23:42:49,191 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1469680753] [2019-12-18 23:42:49,192 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-18 23:42:49,193 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-18 23:42:49,193 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-18 23:42:49,193 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-18 23:42:49,193 INFO L87 Difference]: Start difference. First operand 154 states and 260 transitions. Second operand 3 states. [2019-12-18 23:42:49,221 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-18 23:42:49,222 INFO L93 Difference]: Finished difference Result 142 states and 230 transitions. [2019-12-18 23:42:49,222 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-18 23:42:49,222 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 24 [2019-12-18 23:42:49,223 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-18 23:42:49,223 INFO L225 Difference]: With dead ends: 142 [2019-12-18 23:42:49,224 INFO L226 Difference]: Without dead ends: 110 [2019-12-18 23:42:49,224 INFO L631 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 [2019-12-18 23:42:49,226 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 110 states. [2019-12-18 23:42:49,231 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 110 to 110. [2019-12-18 23:42:49,232 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 110 states. [2019-12-18 23:42:49,232 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 110 states to 110 states and 171 transitions. [2019-12-18 23:42:49,232 INFO L78 Accepts]: Start accepts. Automaton has 110 states and 171 transitions. Word has length 24 [2019-12-18 23:42:49,233 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-18 23:42:49,233 INFO L462 AbstractCegarLoop]: Abstraction has 110 states and 171 transitions. [2019-12-18 23:42:49,233 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-18 23:42:49,233 INFO L276 IsEmpty]: Start isEmpty. Operand 110 states and 171 transitions. [2019-12-18 23:42:49,234 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2019-12-18 23:42:49,234 INFO L403 BasicCegarLoop]: Found error trace [2019-12-18 23:42:49,235 INFO L411 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] [2019-12-18 23:42:49,235 INFO L410 AbstractCegarLoop]: === Iteration 4 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-18 23:42:49,235 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-18 23:42:49,235 INFO L82 PathProgramCache]: Analyzing trace with hash -1024871123, now seen corresponding path program 1 times [2019-12-18 23:42:49,236 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-18 23:42:49,237 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [85337414] [2019-12-18 23:42:49,237 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-18 23:42:49,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-18 23:42:49,350 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-18 23:42:49,352 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [85337414] [2019-12-18 23:42:49,352 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-18 23:42:49,353 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-18 23:42:49,353 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1779688353] [2019-12-18 23:42:49,353 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-18 23:42:49,353 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-18 23:42:49,355 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-18 23:42:49,355 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-18 23:42:49,355 INFO L87 Difference]: Start difference. First operand 110 states and 171 transitions. Second operand 3 states. [2019-12-18 23:42:49,366 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-18 23:42:49,366 INFO L93 Difference]: Finished difference Result 110 states and 168 transitions. [2019-12-18 23:42:49,368 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-18 23:42:49,369 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 29 [2019-12-18 23:42:49,369 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-18 23:42:49,372 INFO L225 Difference]: With dead ends: 110 [2019-12-18 23:42:49,372 INFO L226 Difference]: Without dead ends: 92 [2019-12-18 23:42:49,372 INFO L631 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 [2019-12-18 23:42:49,376 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 92 states. [2019-12-18 23:42:49,381 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 92 to 92. [2019-12-18 23:42:49,381 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 92 states. [2019-12-18 23:42:49,381 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92 states to 92 states and 135 transitions. [2019-12-18 23:42:49,382 INFO L78 Accepts]: Start accepts. Automaton has 92 states and 135 transitions. Word has length 29 [2019-12-18 23:42:49,382 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-18 23:42:49,382 INFO L462 AbstractCegarLoop]: Abstraction has 92 states and 135 transitions. [2019-12-18 23:42:49,382 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-18 23:42:49,382 INFO L276 IsEmpty]: Start isEmpty. Operand 92 states and 135 transitions. [2019-12-18 23:42:49,383 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2019-12-18 23:42:49,383 INFO L403 BasicCegarLoop]: Found error trace [2019-12-18 23:42:49,383 INFO L411 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] [2019-12-18 23:42:49,384 INFO L410 AbstractCegarLoop]: === Iteration 5 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-18 23:42:49,384 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-18 23:42:49,384 INFO L82 PathProgramCache]: Analyzing trace with hash 1617502025, now seen corresponding path program 1 times [2019-12-18 23:42:49,384 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-18 23:42:49,385 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [396726464] [2019-12-18 23:42:49,385 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-18 23:42:49,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-18 23:42:49,469 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-18 23:42:49,470 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [396726464] [2019-12-18 23:42:49,471 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-18 23:42:49,471 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-12-18 23:42:49,471 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [19378908] [2019-12-18 23:42:49,472 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-18 23:42:49,472 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-18 23:42:49,472 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-18 23:42:49,472 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-12-18 23:42:49,473 INFO L87 Difference]: Start difference. First operand 92 states and 135 transitions. Second operand 4 states. [2019-12-18 23:42:49,516 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-18 23:42:49,516 INFO L93 Difference]: Finished difference Result 36 states and 46 transitions. [2019-12-18 23:42:49,517 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-18 23:42:49,517 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 29 [2019-12-18 23:42:49,517 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-18 23:42:49,518 INFO L225 Difference]: With dead ends: 36 [2019-12-18 23:42:49,518 INFO L226 Difference]: Without dead ends: 0 [2019-12-18 23:42:49,518 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-12-18 23:42:49,518 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-12-18 23:42:49,519 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-12-18 23:42:49,519 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-12-18 23:42:49,519 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-12-18 23:42:49,519 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 29 [2019-12-18 23:42:49,519 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-18 23:42:49,519 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-18 23:42:49,520 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-18 23:42:49,520 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-12-18 23:42:49,520 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-12-18 23:42:49,525 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.12 11:42:49 BasicIcfg [2019-12-18 23:42:49,525 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-18 23:42:49,528 INFO L168 Benchmark]: Toolchain (without parser) took 2317.78 ms. Allocated memory was 144.2 MB in the beginning and 232.8 MB in the end (delta: 88.6 MB). Free memory was 100.9 MB in the beginning and 171.4 MB in the end (delta: -70.5 MB). Peak memory consumption was 18.1 MB. Max. memory is 7.1 GB. [2019-12-18 23:42:49,529 INFO L168 Benchmark]: CDTParser took 0.54 ms. Allocated memory is still 144.2 MB. Free memory was 120.5 MB in the beginning and 120.3 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. [2019-12-18 23:42:49,530 INFO L168 Benchmark]: CACSL2BoogieTranslator took 618.72 ms. Allocated memory was 144.2 MB in the beginning and 201.3 MB in the end (delta: 57.1 MB). Free memory was 100.7 MB in the beginning and 157.8 MB in the end (delta: -57.1 MB). Peak memory consumption was 20.1 MB. Max. memory is 7.1 GB. [2019-12-18 23:42:49,531 INFO L168 Benchmark]: Boogie Procedure Inliner took 48.98 ms. Allocated memory is still 201.3 MB. Free memory was 157.8 MB in the beginning and 155.7 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 7.1 GB. [2019-12-18 23:42:49,531 INFO L168 Benchmark]: Boogie Preprocessor took 26.06 ms. Allocated memory is still 201.3 MB. Free memory was 155.7 MB in the beginning and 154.4 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 7.1 GB. [2019-12-18 23:42:49,532 INFO L168 Benchmark]: RCFGBuilder took 437.36 ms. Allocated memory is still 201.3 MB. Free memory was 153.7 MB in the beginning and 131.6 MB in the end (delta: 22.1 MB). Peak memory consumption was 22.1 MB. Max. memory is 7.1 GB. [2019-12-18 23:42:49,533 INFO L168 Benchmark]: TraceAbstraction took 1181.35 ms. Allocated memory was 201.3 MB in the beginning and 232.8 MB in the end (delta: 31.5 MB). Free memory was 131.6 MB in the beginning and 171.4 MB in the end (delta: -39.9 MB). There was no memory consumed. Max. memory is 7.1 GB. [2019-12-18 23:42:49,537 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.54 ms. Allocated memory is still 144.2 MB. Free memory was 120.5 MB in the beginning and 120.3 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 618.72 ms. Allocated memory was 144.2 MB in the beginning and 201.3 MB in the end (delta: 57.1 MB). Free memory was 100.7 MB in the beginning and 157.8 MB in the end (delta: -57.1 MB). Peak memory consumption was 20.1 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 48.98 ms. Allocated memory is still 201.3 MB. Free memory was 157.8 MB in the beginning and 155.7 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 26.06 ms. Allocated memory is still 201.3 MB. Free memory was 155.7 MB in the beginning and 154.4 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 437.36 ms. Allocated memory is still 201.3 MB. Free memory was 153.7 MB in the beginning and 131.6 MB in the end (delta: 22.1 MB). Peak memory consumption was 22.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1181.35 ms. Allocated memory was 201.3 MB in the beginning and 232.8 MB in the end (delta: 31.5 MB). Free memory was 131.6 MB in the beginning and 171.4 MB in the end (delta: -39.9 MB). There was no memory consumed. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 699]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 708]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 47 locations, 2 error locations. Result: SAFE, OverallTime: 1.0s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 233 SDtfs, 120 SDslu, 124 SDs, 0 SdLazy, 23 SolverSat, 9 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 19 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=255occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 5 MinimizatonAttempts, 12 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 124 NumberOfCodeBlocks, 124 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 119 ConstructedInterpolants, 0 QuantifiedInterpolants, 4749 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...