/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-VariableLbe.epf -i ../../../trunk/examples/svcomp/pthread-ext/19_time_var_mutex.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-fae578e [2019-12-18 19:44:48,107 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-18 19:44:48,111 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-18 19:44:48,128 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-18 19:44:48,129 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-18 19:44:48,130 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-18 19:44:48,131 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-18 19:44:48,133 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-18 19:44:48,135 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-18 19:44:48,136 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-18 19:44:48,137 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-18 19:44:48,138 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-18 19:44:48,138 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-18 19:44:48,139 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-18 19:44:48,140 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-18 19:44:48,141 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-18 19:44:48,142 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-18 19:44:48,143 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-18 19:44:48,145 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-18 19:44:48,147 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-18 19:44:48,149 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-18 19:44:48,150 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-18 19:44:48,151 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-18 19:44:48,152 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-18 19:44:48,157 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-12-18 19:44:48,163 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-18 19:44:48,164 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-18 19:44:48,166 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-18 19:44:48,166 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-18 19:44:48,167 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-18 19:44:48,168 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-18 19:44:48,168 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-18 19:44:48,168 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-18 19:44:48,169 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-18 19:44:48,170 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-18 19:44:48,173 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-18 19:44:48,174 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-VariableLbe.epf [2019-12-18 19:44:48,188 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-18 19:44:48,188 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-18 19:44:48,189 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-18 19:44:48,189 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-18 19:44:48,189 INFO L138 SettingsManager]: * Use SBE=true [2019-12-18 19:44:48,190 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-18 19:44:48,190 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-18 19:44:48,190 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-18 19:44:48,190 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-18 19:44:48,191 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-18 19:44:48,191 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-18 19:44:48,191 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-18 19:44:48,191 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-18 19:44:48,191 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-18 19:44:48,191 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-18 19:44:48,192 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-18 19:44:48,192 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-18 19:44:48,192 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-18 19:44:48,192 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-18 19:44:48,192 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-18 19:44:48,193 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-18 19:44:48,193 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-18 19:44:48,193 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-18 19:44:48,193 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-18 19:44:48,193 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-18 19:44:48,194 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-12-18 19:44:48,194 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-18 19:44:48,194 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=VARIABLE_BASED_MOVER_CHECK [2019-12-18 19:44:48,194 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-18 19:44:48,194 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-18 19:44:48,443 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-18 19:44:48,456 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-18 19:44:48,459 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-18 19:44:48,461 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-18 19:44:48,461 INFO L275 PluginConnector]: CDTParser initialized [2019-12-18 19:44:48,462 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-ext/19_time_var_mutex.i [2019-12-18 19:44:48,543 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dbfe4e465/191878da052f4910bbc56a52540b91f3/FLAGf97028a3f [2019-12-18 19:44:49,150 INFO L306 CDTParser]: Found 1 translation units. [2019-12-18 19:44:49,154 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-ext/19_time_var_mutex.i [2019-12-18 19:44:49,174 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dbfe4e465/191878da052f4910bbc56a52540b91f3/FLAGf97028a3f [2019-12-18 19:44:49,432 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dbfe4e465/191878da052f4910bbc56a52540b91f3 [2019-12-18 19:44:49,441 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-18 19:44:49,443 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-12-18 19:44:49,444 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-18 19:44:49,444 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-18 19:44:49,447 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-18 19:44:49,448 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.12 07:44:49" (1/1) ... [2019-12-18 19:44:49,451 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5fc3c32e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 07:44:49, skipping insertion in model container [2019-12-18 19:44:49,451 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.12 07:44:49" (1/1) ... [2019-12-18 19:44:49,459 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-18 19:44:49,517 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-18 19:44:49,950 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-18 19:44:49,964 INFO L203 MainTranslator]: Completed pre-run [2019-12-18 19:44:50,042 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-18 19:44:50,114 INFO L208 MainTranslator]: Completed translation [2019-12-18 19:44:50,114 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 07:44:50 WrapperNode [2019-12-18 19:44:50,114 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-18 19:44:50,115 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-18 19:44:50,115 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-18 19:44:50,115 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-18 19:44:50,124 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 07:44:50" (1/1) ... [2019-12-18 19:44:50,140 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 07:44:50" (1/1) ... [2019-12-18 19:44:50,163 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-18 19:44:50,164 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-18 19:44:50,164 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-18 19:44:50,164 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-18 19:44:50,174 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 07:44:50" (1/1) ... [2019-12-18 19:44:50,174 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 07:44:50" (1/1) ... [2019-12-18 19:44:50,177 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 07:44:50" (1/1) ... [2019-12-18 19:44:50,178 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 07:44:50" (1/1) ... [2019-12-18 19:44:50,185 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 07:44:50" (1/1) ... [2019-12-18 19:44:50,187 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 07:44:50" (1/1) ... [2019-12-18 19:44:50,190 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 07:44:50" (1/1) ... [2019-12-18 19:44:50,193 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-18 19:44:50,194 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-18 19:44:50,194 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-18 19:44:50,194 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-18 19:44:50,195 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 07:44:50" (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 19:44:50,256 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-12-18 19:44:50,256 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2019-12-18 19:44:50,256 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2019-12-18 19:44:50,256 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-12-18 19:44:50,257 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-18 19:44:50,257 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-12-18 19:44:50,257 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-12-18 19:44:50,257 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-18 19:44:50,257 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-18 19:44:50,259 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 19:44:50,400 INFO L1525 $ProcedureCfgBuilder]: dropping label inside atomic statement: __VERIFIER_atomic_acquire_returnLabel [2019-12-18 19:44:50,402 INFO L1525 $ProcedureCfgBuilder]: dropping label inside atomic statement: __VERIFIER_atomic_acquire_returnLabel#2 [2019-12-18 19:44:50,403 INFO L1525 $ProcedureCfgBuilder]: dropping label inside atomic statement: __VERIFIER_atomic_release_returnLabel [2019-12-18 19:44:50,408 INFO L1525 $ProcedureCfgBuilder]: dropping label inside atomic statement: __VERIFIER_atomic_release_returnLabel#2 [2019-12-18 19:44:50,551 INFO L1525 $ProcedureCfgBuilder]: dropping label inside atomic statement: __VERIFIER_atomic_acquire_returnLabel [2019-12-18 19:44:50,553 INFO L1525 $ProcedureCfgBuilder]: dropping label inside atomic statement: __VERIFIER_atomic_release_returnLabel [2019-12-18 19:44:50,625 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-18 19:44:50,626 INFO L287 CfgBuilder]: Removed 6 assume(true) statements. [2019-12-18 19:44:50,627 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.12 07:44:50 BoogieIcfgContainer [2019-12-18 19:44:50,627 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-18 19:44:50,628 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-18 19:44:50,629 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-18 19:44:50,632 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-18 19:44:50,632 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.12 07:44:49" (1/3) ... [2019-12-18 19:44:50,633 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1f83187a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.12 07:44:50, skipping insertion in model container [2019-12-18 19:44:50,633 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 07:44:50" (2/3) ... [2019-12-18 19:44:50,634 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1f83187a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.12 07:44:50, skipping insertion in model container [2019-12-18 19:44:50,634 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.12 07:44:50" (3/3) ... [2019-12-18 19:44:50,636 INFO L109 eAbstractionObserver]: Analyzing ICFG 19_time_var_mutex.i [2019-12-18 19:44:50,645 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2019-12-18 19:44:50,646 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-18 19:44:50,652 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2019-12-18 19:44:50,653 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2019-12-18 19:44:50,681 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:44:50,688 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:44:50,688 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:44:50,689 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0___VERIFIER_atomic_acquire_#in~m.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:44:50,689 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0___VERIFIER_atomic_acquire_~m.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:44:50,689 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0___VERIFIER_atomic_acquire_~m.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:44:50,689 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:44:50,689 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0___VERIFIER_atomic_acquire_#t~mem3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:44:50,690 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0___VERIFIER_atomic_acquire_#in~m.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:44:50,690 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0___VERIFIER_atomic_acquire_~m.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:44:50,691 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0___VERIFIER_atomic_acquire_~m.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:44:50,692 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0___VERIFIER_atomic_acquire_#in~m.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:44:50,692 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0___VERIFIER_atomic_acquire_#t~mem3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:44:50,693 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0___VERIFIER_atomic_acquire_#in~m.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:44:50,693 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0___VERIFIER_atomic_release_#in~m.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:44:50,693 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0___VERIFIER_atomic_release_~m.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:44:50,693 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0___VERIFIER_atomic_release_#in~m.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:44:50,693 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0___VERIFIER_atomic_release_~m.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:44:50,694 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0___VERIFIER_atomic_release_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:44:50,694 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0___VERIFIER_atomic_release_#in~m.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:44:50,695 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0___VERIFIER_atomic_release_~m.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:44:50,695 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0___VERIFIER_atomic_release_#in~m.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:44:50,695 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0___VERIFIER_atomic_release_~m.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:44:50,695 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0___VERIFIER_atomic_release_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:44:50,696 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:44:50,696 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:44:50,702 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0___VERIFIER_atomic_acquire_#in~m.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:44:50,702 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0___VERIFIER_atomic_release_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:44:50,702 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:44:50,703 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:44:50,703 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0___VERIFIER_atomic_release_#in~m.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:44:50,703 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0___VERIFIER_atomic_acquire_#in~m.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:44:50,703 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0___VERIFIER_atomic_acquire_#t~mem3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:44:50,704 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0___VERIFIER_atomic_acquire_~m.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:44:50,704 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0___VERIFIER_atomic_release_~m.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:44:50,704 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0___VERIFIER_atomic_acquire_~m.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:44:50,704 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0___VERIFIER_atomic_release_#in~m.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:44:50,705 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:44:50,705 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0___VERIFIER_atomic_release_~m.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:44:50,705 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:44:50,720 INFO L249 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2019-12-18 19:44:50,737 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-18 19:44:50,737 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-18 19:44:50,738 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-18 19:44:50,738 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-18 19:44:50,738 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-18 19:44:50,738 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-18 19:44:50,738 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-18 19:44:50,739 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-18 19:44:50,751 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 50 places, 50 transitions [2019-12-18 19:44:50,752 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 50 places, 50 transitions [2019-12-18 19:44:50,790 INFO L126 PetriNetUnfolder]: 4/49 cut-off events. [2019-12-18 19:44:50,790 INFO L127 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2019-12-18 19:44:50,797 INFO L76 FinitePrefix]: Finished finitePrefix Result has 53 conditions, 49 events. 4/49 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 48 event pairs. 3/46 useless extension candidates. Maximal degree in co-relation 34. Up to 3 conditions per place. [2019-12-18 19:44:50,801 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 50 places, 50 transitions [2019-12-18 19:44:50,816 INFO L126 PetriNetUnfolder]: 4/49 cut-off events. [2019-12-18 19:44:50,817 INFO L127 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2019-12-18 19:44:50,818 INFO L76 FinitePrefix]: Finished finitePrefix Result has 53 conditions, 49 events. 4/49 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 48 event pairs. 3/46 useless extension candidates. Maximal degree in co-relation 34. Up to 3 conditions per place. [2019-12-18 19:44:50,820 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 546 [2019-12-18 19:44:50,821 INFO L182 etLargeBlockEncoding]: Variable Check. [2019-12-18 19:44:51,929 WARN L192 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 48 [2019-12-18 19:44:52,184 WARN L192 SmtUtils]: Spent 197.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 63 [2019-12-18 19:44:52,270 INFO L206 etLargeBlockEncoding]: Checked pairs total: 1903 [2019-12-18 19:44:52,270 INFO L214 etLargeBlockEncoding]: Total number of compositions: 34 [2019-12-18 19:44:52,282 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 20 places, 21 transitions [2019-12-18 19:44:52,293 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 74 states. [2019-12-18 19:44:52,295 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states. [2019-12-18 19:44:52,301 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2019-12-18 19:44:52,302 INFO L403 BasicCegarLoop]: Found error trace [2019-12-18 19:44:52,302 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2019-12-18 19:44:52,303 INFO L410 AbstractCegarLoop]: === Iteration 1 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-18 19:44:52,309 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-18 19:44:52,309 INFO L82 PathProgramCache]: Analyzing trace with hash 187884264, now seen corresponding path program 1 times [2019-12-18 19:44:52,318 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-18 19:44:52,319 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [589031675] [2019-12-18 19:44:52,319 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-18 19:44:52,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-18 19:44:52,499 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 19:44:52,500 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [589031675] [2019-12-18 19:44:52,501 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-18 19:44:52,501 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-18 19:44:52,502 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1112425628] [2019-12-18 19:44:52,506 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-18 19:44:52,507 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-18 19:44:52,521 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-18 19:44:52,522 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-18 19:44:52,524 INFO L87 Difference]: Start difference. First operand 74 states. Second operand 3 states. [2019-12-18 19:44:52,552 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-18 19:44:52,553 INFO L93 Difference]: Finished difference Result 74 states and 137 transitions. [2019-12-18 19:44:52,553 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-18 19:44:52,555 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 5 [2019-12-18 19:44:52,555 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-18 19:44:52,566 INFO L225 Difference]: With dead ends: 74 [2019-12-18 19:44:52,566 INFO L226 Difference]: Without dead ends: 66 [2019-12-18 19:44:52,568 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-18 19:44:52,587 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states. [2019-12-18 19:44:52,606 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 66. [2019-12-18 19:44:52,607 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 66 states. [2019-12-18 19:44:52,610 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 119 transitions. [2019-12-18 19:44:52,611 INFO L78 Accepts]: Start accepts. Automaton has 66 states and 119 transitions. Word has length 5 [2019-12-18 19:44:52,611 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-18 19:44:52,612 INFO L462 AbstractCegarLoop]: Abstraction has 66 states and 119 transitions. [2019-12-18 19:44:52,612 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-18 19:44:52,612 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 119 transitions. [2019-12-18 19:44:52,613 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2019-12-18 19:44:52,613 INFO L403 BasicCegarLoop]: Found error trace [2019-12-18 19:44:52,613 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2019-12-18 19:44:52,613 INFO L410 AbstractCegarLoop]: === Iteration 2 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-18 19:44:52,614 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-18 19:44:52,614 INFO L82 PathProgramCache]: Analyzing trace with hash 1530075076, now seen corresponding path program 1 times [2019-12-18 19:44:52,614 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-18 19:44:52,614 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1590269385] [2019-12-18 19:44:52,614 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-18 19:44:52,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-18 19:44:52,669 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 19:44:52,670 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1590269385] [2019-12-18 19:44:52,670 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-18 19:44:52,670 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-18 19:44:52,671 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1237690610] [2019-12-18 19:44:52,672 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-18 19:44:52,673 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-18 19:44:52,673 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-18 19:44:52,673 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-18 19:44:52,673 INFO L87 Difference]: Start difference. First operand 66 states and 119 transitions. Second operand 3 states. [2019-12-18 19:44:52,703 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-18 19:44:52,703 INFO L93 Difference]: Finished difference Result 68 states and 114 transitions. [2019-12-18 19:44:52,703 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-18 19:44:52,704 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 6 [2019-12-18 19:44:52,704 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-18 19:44:52,705 INFO L225 Difference]: With dead ends: 68 [2019-12-18 19:44:52,705 INFO L226 Difference]: Without dead ends: 60 [2019-12-18 19:44:52,706 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-18 19:44:52,708 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60 states. [2019-12-18 19:44:52,714 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60 to 54. [2019-12-18 19:44:52,714 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 54 states. [2019-12-18 19:44:52,715 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 94 transitions. [2019-12-18 19:44:52,715 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 94 transitions. Word has length 6 [2019-12-18 19:44:52,716 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-18 19:44:52,716 INFO L462 AbstractCegarLoop]: Abstraction has 54 states and 94 transitions. [2019-12-18 19:44:52,716 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-18 19:44:52,716 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 94 transitions. [2019-12-18 19:44:52,717 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2019-12-18 19:44:52,717 INFO L403 BasicCegarLoop]: Found error trace [2019-12-18 19:44:52,717 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2019-12-18 19:44:52,717 INFO L410 AbstractCegarLoop]: === Iteration 3 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-18 19:44:52,718 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-18 19:44:52,718 INFO L82 PathProgramCache]: Analyzing trace with hash 145903276, now seen corresponding path program 1 times [2019-12-18 19:44:52,718 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-18 19:44:52,718 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [15866600] [2019-12-18 19:44:52,718 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-18 19:44:52,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-18 19:44:52,788 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 19:44:52,789 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [15866600] [2019-12-18 19:44:52,789 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-18 19:44:52,789 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-18 19:44:52,789 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1084380418] [2019-12-18 19:44:52,790 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-18 19:44:52,790 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-18 19:44:52,790 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-18 19:44:52,790 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-18 19:44:52,791 INFO L87 Difference]: Start difference. First operand 54 states and 94 transitions. Second operand 3 states. [2019-12-18 19:44:52,814 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-18 19:44:52,815 INFO L93 Difference]: Finished difference Result 51 states and 82 transitions. [2019-12-18 19:44:52,816 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-18 19:44:52,817 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 7 [2019-12-18 19:44:52,817 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-18 19:44:52,817 INFO L225 Difference]: With dead ends: 51 [2019-12-18 19:44:52,818 INFO L226 Difference]: Without dead ends: 35 [2019-12-18 19:44:52,818 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-18 19:44:52,821 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2019-12-18 19:44:52,826 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 35. [2019-12-18 19:44:52,827 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35 states. [2019-12-18 19:44:52,827 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 50 transitions. [2019-12-18 19:44:52,827 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 50 transitions. Word has length 7 [2019-12-18 19:44:52,829 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-18 19:44:52,829 INFO L462 AbstractCegarLoop]: Abstraction has 35 states and 50 transitions. [2019-12-18 19:44:52,829 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-18 19:44:52,829 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 50 transitions. [2019-12-18 19:44:52,830 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-12-18 19:44:52,830 INFO L403 BasicCegarLoop]: Found error trace [2019-12-18 19:44:52,830 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-18 19:44:52,831 INFO L410 AbstractCegarLoop]: === Iteration 4 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-18 19:44:52,831 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-18 19:44:52,831 INFO L82 PathProgramCache]: Analyzing trace with hash 666864518, now seen corresponding path program 1 times [2019-12-18 19:44:52,831 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-18 19:44:52,832 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [436890494] [2019-12-18 19:44:52,832 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-18 19:44:52,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-18 19:44:52,973 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 19:44:52,973 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [436890494] [2019-12-18 19:44:52,974 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-18 19:44:52,974 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-12-18 19:44:52,974 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1725234657] [2019-12-18 19:44:52,975 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-12-18 19:44:52,975 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-18 19:44:52,975 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-12-18 19:44:52,976 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-12-18 19:44:52,976 INFO L87 Difference]: Start difference. First operand 35 states and 50 transitions. Second operand 6 states. [2019-12-18 19:44:53,055 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-18 19:44:53,055 INFO L93 Difference]: Finished difference Result 32 states and 41 transitions. [2019-12-18 19:44:53,055 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-12-18 19:44:53,056 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 10 [2019-12-18 19:44:53,056 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-18 19:44:53,056 INFO L225 Difference]: With dead ends: 32 [2019-12-18 19:44:53,056 INFO L226 Difference]: Without dead ends: 26 [2019-12-18 19:44:53,057 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2019-12-18 19:44:53,058 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2019-12-18 19:44:53,060 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 26. [2019-12-18 19:44:53,060 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26 states. [2019-12-18 19:44:53,060 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 32 transitions. [2019-12-18 19:44:53,061 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 32 transitions. Word has length 10 [2019-12-18 19:44:53,061 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-18 19:44:53,061 INFO L462 AbstractCegarLoop]: Abstraction has 26 states and 32 transitions. [2019-12-18 19:44:53,061 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-12-18 19:44:53,061 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 32 transitions. [2019-12-18 19:44:53,062 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-12-18 19:44:53,062 INFO L403 BasicCegarLoop]: Found error trace [2019-12-18 19:44:53,062 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-18 19:44:53,062 INFO L410 AbstractCegarLoop]: === Iteration 5 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-18 19:44:53,063 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-18 19:44:53,063 INFO L82 PathProgramCache]: Analyzing trace with hash 135052618, now seen corresponding path program 2 times [2019-12-18 19:44:53,063 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-18 19:44:53,063 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1523591823] [2019-12-18 19:44:53,063 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-18 19:44:53,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-18 19:44:53,099 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 19:44:53,100 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1523591823] [2019-12-18 19:44:53,100 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-18 19:44:53,100 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-18 19:44:53,101 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1948843521] [2019-12-18 19:44:53,101 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-18 19:44:53,101 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-18 19:44:53,101 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-18 19:44:53,102 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-18 19:44:53,102 INFO L87 Difference]: Start difference. First operand 26 states and 32 transitions. Second operand 3 states. [2019-12-18 19:44:53,105 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-18 19:44:53,106 INFO L93 Difference]: Finished difference Result 9 states and 9 transitions. [2019-12-18 19:44:53,106 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-18 19:44:53,106 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10 [2019-12-18 19:44:53,107 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-18 19:44:53,107 INFO L225 Difference]: With dead ends: 9 [2019-12-18 19:44:53,107 INFO L226 Difference]: Without dead ends: 0 [2019-12-18 19:44:53,107 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 19:44:53,107 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-12-18 19:44:53,108 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-12-18 19:44:53,108 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-12-18 19:44:53,108 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-12-18 19:44:53,108 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 10 [2019-12-18 19:44:53,108 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-18 19:44:53,108 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-18 19:44:53,109 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-18 19:44:53,109 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-12-18 19:44:53,109 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-12-18 19:44:53,113 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.12 07:44:53 BasicIcfg [2019-12-18 19:44:53,113 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-18 19:44:53,115 INFO L168 Benchmark]: Toolchain (without parser) took 3672.73 ms. Allocated memory was 137.9 MB in the beginning and 249.0 MB in the end (delta: 111.1 MB). Free memory was 101.1 MB in the beginning and 166.6 MB in the end (delta: -65.5 MB). Peak memory consumption was 45.7 MB. Max. memory is 7.1 GB. [2019-12-18 19:44:53,116 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 137.9 MB. Free memory was 121.1 MB in the beginning and 120.9 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. [2019-12-18 19:44:53,117 INFO L168 Benchmark]: CACSL2BoogieTranslator took 671.04 ms. Allocated memory was 137.9 MB in the beginning and 201.3 MB in the end (delta: 63.4 MB). Free memory was 100.7 MB in the beginning and 160.0 MB in the end (delta: -59.4 MB). Peak memory consumption was 26.0 MB. Max. memory is 7.1 GB. [2019-12-18 19:44:53,118 INFO L168 Benchmark]: Boogie Procedure Inliner took 48.38 ms. Allocated memory is still 201.3 MB. Free memory was 160.0 MB in the beginning and 158.1 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. [2019-12-18 19:44:53,121 INFO L168 Benchmark]: Boogie Preprocessor took 29.58 ms. Allocated memory is still 201.3 MB. Free memory was 158.1 MB in the beginning and 156.1 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. [2019-12-18 19:44:53,121 INFO L168 Benchmark]: RCFGBuilder took 433.80 ms. Allocated memory is still 201.3 MB. Free memory was 156.1 MB in the beginning and 134.6 MB in the end (delta: 21.5 MB). Peak memory consumption was 21.5 MB. Max. memory is 7.1 GB. [2019-12-18 19:44:53,123 INFO L168 Benchmark]: TraceAbstraction took 2484.70 ms. Allocated memory was 201.3 MB in the beginning and 249.0 MB in the end (delta: 47.7 MB). Free memory was 133.9 MB in the beginning and 166.6 MB in the end (delta: -32.7 MB). Peak memory consumption was 15.0 MB. Max. memory is 7.1 GB. [2019-12-18 19:44:53,130 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 137.9 MB. Free memory was 121.1 MB in the beginning and 120.9 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 671.04 ms. Allocated memory was 137.9 MB in the beginning and 201.3 MB in the end (delta: 63.4 MB). Free memory was 100.7 MB in the beginning and 160.0 MB in the end (delta: -59.4 MB). Peak memory consumption was 26.0 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 48.38 ms. Allocated memory is still 201.3 MB. Free memory was 160.0 MB in the beginning and 158.1 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 29.58 ms. Allocated memory is still 201.3 MB. Free memory was 158.1 MB in the beginning and 156.1 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 433.80 ms. Allocated memory is still 201.3 MB. Free memory was 156.1 MB in the beginning and 134.6 MB in the end (delta: 21.5 MB). Peak memory consumption was 21.5 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2484.70 ms. Allocated memory was 201.3 MB in the beginning and 249.0 MB in the end (delta: 47.7 MB). Free memory was 133.9 MB in the beginning and 166.6 MB in the end (delta: -32.7 MB). Peak memory consumption was 15.0 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 1.5s, 50 ProgramPointsBefore, 20 ProgramPointsAfterwards, 50 TransitionsBefore, 21 TransitionsAfterwards, 546 CoEnabledTransitionPairs, 6 FixpointIterations, 13 TrivialSequentialCompositions, 16 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 5 ConcurrentYvCompositions, 1 ChoiceCompositions, 279 VarBasedMoverChecksPositive, 35 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 0 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 0 MoverChecksTotal, 1903 CheckedPairsTotal, 34 TotalNumberOfCompositions - 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: 2.3s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 72 SDtfs, 66 SDslu, 38 SDs, 0 SdLazy, 43 SolverSat, 19 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 16 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=74occurred 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: 0.0s AutomataMinimizationTime, 5 MinimizatonAttempts, 6 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 38 NumberOfCodeBlocks, 38 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 33 ConstructedInterpolants, 0 QuantifiedInterpolants, 637 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...