/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/mcr/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-McrAutomaton-WP.epf -i ../../../trunk/examples/svcomp/pthread-wmm/safe007_pso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-60655ea [2020-09-15 23:06:35,690 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-15 23:06:35,694 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-15 23:06:35,720 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-15 23:06:35,720 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-15 23:06:35,722 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-15 23:06:35,723 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-15 23:06:35,725 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-15 23:06:35,727 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-15 23:06:35,728 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-15 23:06:35,729 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-15 23:06:35,730 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-15 23:06:35,731 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-15 23:06:35,732 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-15 23:06:35,735 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-15 23:06:35,736 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-15 23:06:35,737 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-15 23:06:35,741 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-15 23:06:35,746 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-15 23:06:35,750 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-15 23:06:35,751 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-15 23:06:35,755 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-15 23:06:35,757 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-15 23:06:35,758 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-15 23:06:35,761 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-15 23:06:35,761 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-15 23:06:35,761 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-15 23:06:35,765 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-15 23:06:35,766 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-15 23:06:35,769 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-15 23:06:35,770 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-15 23:06:35,771 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-15 23:06:35,773 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-15 23:06:35,774 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-15 23:06:35,775 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-15 23:06:35,775 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-15 23:06:35,776 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-15 23:06:35,776 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-15 23:06:35,777 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-15 23:06:35,778 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-15 23:06:35,779 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-15 23:06:35,780 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/mcr/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-McrAutomaton-WP.epf [2020-09-15 23:06:35,842 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-15 23:06:35,842 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-15 23:06:35,845 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-15 23:06:35,845 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-15 23:06:35,845 INFO L138 SettingsManager]: * Use SBE=true [2020-09-15 23:06:35,845 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-15 23:06:35,846 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-15 23:06:35,846 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-15 23:06:35,846 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-15 23:06:35,846 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-15 23:06:35,846 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-15 23:06:35,847 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-15 23:06:35,848 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-15 23:06:35,848 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-15 23:06:35,848 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-15 23:06:35,848 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-15 23:06:35,849 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-15 23:06:35,849 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-15 23:06:35,849 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-15 23:06:35,849 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-15 23:06:35,849 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-15 23:06:35,850 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-15 23:06:35,850 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-15 23:06:35,851 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_NestedInterpolation [2020-09-15 23:06:35,851 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-15 23:06:35,851 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-15 23:06:35,851 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-15 23:06:35,851 INFO L138 SettingsManager]: * Override the interpolant automaton setting of the refinement strategy=true [2020-09-15 23:06:35,851 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=VARIABLE_BASED_MOVER_CHECK [2020-09-15 23:06:35,852 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-15 23:06:35,852 INFO L138 SettingsManager]: * Interpolant automaton=MCR [2020-09-15 23:06:36,303 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-15 23:06:36,331 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-15 23:06:36,339 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-15 23:06:36,341 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-15 23:06:36,342 INFO L275 PluginConnector]: CDTParser initialized [2020-09-15 23:06:36,343 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe007_pso.oepc.i [2020-09-15 23:06:36,436 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/7ee45a5f0/743b372de0ea416e83834487b8d4ac13/FLAG0fa264fa6 [2020-09-15 23:06:37,072 INFO L306 CDTParser]: Found 1 translation units. [2020-09-15 23:06:37,073 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/pthread-wmm/safe007_pso.oepc.i [2020-09-15 23:06:37,104 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/7ee45a5f0/743b372de0ea416e83834487b8d4ac13/FLAG0fa264fa6 [2020-09-15 23:06:37,319 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/7ee45a5f0/743b372de0ea416e83834487b8d4ac13 [2020-09-15 23:06:37,332 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-15 23:06:37,338 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-09-15 23:06:37,339 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-15 23:06:37,339 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-15 23:06:37,343 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-15 23:06:37,344 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.09 11:06:37" (1/1) ... [2020-09-15 23:06:37,349 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@63f35be2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 11:06:37, skipping insertion in model container [2020-09-15 23:06:37,349 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.09 11:06:37" (1/1) ... [2020-09-15 23:06:37,358 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-15 23:06:37,413 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-15 23:06:37,958 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-15 23:06:37,980 INFO L203 MainTranslator]: Completed pre-run [2020-09-15 23:06:38,075 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-15 23:06:38,192 INFO L208 MainTranslator]: Completed translation [2020-09-15 23:06:38,194 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 11:06:38 WrapperNode [2020-09-15 23:06:38,194 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-15 23:06:38,195 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-09-15 23:06:38,195 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-09-15 23:06:38,195 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-09-15 23:06:38,210 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 11:06:38" (1/1) ... [2020-09-15 23:06:38,253 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 11:06:38" (1/1) ... [2020-09-15 23:06:38,289 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-09-15 23:06:38,289 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-15 23:06:38,290 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-15 23:06:38,290 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-15 23:06:38,303 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 11:06:38" (1/1) ... [2020-09-15 23:06:38,303 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 11:06:38" (1/1) ... [2020-09-15 23:06:38,312 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 11:06:38" (1/1) ... [2020-09-15 23:06:38,313 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 11:06:38" (1/1) ... [2020-09-15 23:06:38,328 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 11:06:38" (1/1) ... [2020-09-15 23:06:38,331 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 11:06:38" (1/1) ... [2020-09-15 23:06:38,334 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 11:06:38" (1/1) ... [2020-09-15 23:06:38,337 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-15 23:06:38,338 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-15 23:06:38,338 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-15 23:06:38,338 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-15 23:06:38,339 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 11:06:38" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/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 [2020-09-15 23:06:38,424 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-15 23:06:38,425 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-09-15 23:06:38,425 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-15 23:06:38,425 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-15 23:06:38,425 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-09-15 23:06:38,426 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-09-15 23:06:38,426 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-09-15 23:06:38,426 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-09-15 23:06:38,426 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-09-15 23:06:38,426 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-09-15 23:06:38,427 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-09-15 23:06:38,427 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-15 23:06:38,427 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-15 23:06:38,430 WARN L205 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-09-15 23:06:38,871 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-15 23:06:38,872 INFO L295 CfgBuilder]: Removed 8 assume(true) statements. [2020-09-15 23:06:38,878 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.09 11:06:38 BoogieIcfgContainer [2020-09-15 23:06:38,878 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-15 23:06:38,879 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-15 23:06:38,880 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-15 23:06:38,883 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-15 23:06:38,884 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.09 11:06:37" (1/3) ... [2020-09-15 23:06:38,885 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@46179b5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.09 11:06:38, skipping insertion in model container [2020-09-15 23:06:38,885 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 11:06:38" (2/3) ... [2020-09-15 23:06:38,885 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@46179b5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.09 11:06:38, skipping insertion in model container [2020-09-15 23:06:38,886 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.09 11:06:38" (3/3) ... [2020-09-15 23:06:38,888 INFO L109 eAbstractionObserver]: Analyzing ICFG safe007_pso.oepc.i [2020-09-15 23:06:38,900 WARN L146 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-09-15 23:06:38,900 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-15 23:06:38,911 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-15 23:06:38,912 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-09-15 23:06:38,943 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 23:06:38,943 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 23:06:38,944 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 23:06:38,944 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 23:06:38,945 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 23:06:38,945 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 23:06:38,945 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 23:06:38,946 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 23:06:38,946 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 23:06:38,946 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 23:06:38,947 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 23:06:38,947 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 23:06:38,947 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 23:06:38,948 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 23:06:38,948 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 23:06:38,948 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 23:06:38,948 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 23:06:38,949 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 23:06:38,954 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 23:06:38,954 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 23:06:38,954 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 23:06:38,955 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 23:06:38,963 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 23:06:38,963 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 23:06:38,963 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 23:06:38,964 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 23:06:38,966 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 23:06:38,967 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 23:06:38,967 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 23:06:38,967 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 23:06:38,992 INFO L251 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-09-15 23:06:39,021 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-15 23:06:39,021 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-15 23:06:39,021 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-15 23:06:39,022 INFO L378 AbstractCegarLoop]: Backedges is MCR [2020-09-15 23:06:39,022 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-15 23:06:39,022 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-15 23:06:39,022 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-15 23:06:39,022 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-15 23:06:39,042 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 79 places, 71 transitions, 157 flow [2020-09-15 23:06:39,044 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 79 places, 71 transitions, 157 flow [2020-09-15 23:06:39,096 INFO L129 PetriNetUnfolder]: 2/68 cut-off events. [2020-09-15 23:06:39,096 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-09-15 23:06:39,102 INFO L80 FinitePrefix]: Finished finitePrefix Result has 78 conditions, 68 events. 2/68 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 51 event pairs, 0 based on Foata normal form. 0/65 useless extension candidates. Maximal degree in co-relation 55. Up to 2 conditions per place. [2020-09-15 23:06:39,106 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 79 places, 71 transitions, 157 flow [2020-09-15 23:06:39,128 INFO L129 PetriNetUnfolder]: 2/68 cut-off events. [2020-09-15 23:06:39,128 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-09-15 23:06:39,129 INFO L80 FinitePrefix]: Finished finitePrefix Result has 78 conditions, 68 events. 2/68 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 51 event pairs, 0 based on Foata normal form. 0/65 useless extension candidates. Maximal degree in co-relation 55. Up to 2 conditions per place. [2020-09-15 23:06:39,131 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 1260 [2020-09-15 23:06:39,133 INFO L182 etLargeBlockEncoding]: Variable Check. [2020-09-15 23:06:40,514 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 51 [2020-09-15 23:06:40,608 INFO L206 etLargeBlockEncoding]: Checked pairs total: 2463 [2020-09-15 23:06:40,609 INFO L214 etLargeBlockEncoding]: Total number of compositions: 57 [2020-09-15 23:06:40,627 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 32 places, 23 transitions, 61 flow [2020-09-15 23:06:40,661 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 362 states. [2020-09-15 23:06:40,664 INFO L276 IsEmpty]: Start isEmpty. Operand 362 states. [2020-09-15 23:06:40,674 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-09-15 23:06:40,674 INFO L414 BasicCegarLoop]: Found error trace [2020-09-15 23:06:40,675 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-09-15 23:06:40,676 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-15 23:06:40,683 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-15 23:06:40,684 INFO L82 PathProgramCache]: Analyzing trace with hash -691335731, now seen corresponding path program 1 times [2020-09-15 23:06:40,709 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-15 23:06:40,709 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1211282142] [2020-09-15 23:06:40,709 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-15 23:06:40,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-15 23:06:40,911 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-15 23:06:40,912 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1211282142] [2020-09-15 23:06:40,913 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-15 23:06:40,913 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-09-15 23:06:40,914 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1853579671] [2020-09-15 23:06:40,916 INFO L216 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-09-15 23:06:40,920 INFO L271 McrAutomatonBuilder]: Started intersection. [2020-09-15 23:06:40,937 INFO L274 McrAutomatonBuilder]: Finished intersection with 9 states and 8 transitions. [2020-09-15 23:06:40,937 INFO L299 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-09-15 23:06:40,940 INFO L399 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-09-15 23:06:40,941 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-09-15 23:06:40,941 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-15 23:06:40,960 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-09-15 23:06:40,961 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-09-15 23:06:40,963 INFO L87 Difference]: Start difference. First operand 362 states. Second operand 2 states. [2020-09-15 23:06:40,994 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-15 23:06:40,994 INFO L93 Difference]: Finished difference Result 362 states and 1072 transitions. [2020-09-15 23:06:40,994 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-09-15 23:06:40,996 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 8 [2020-09-15 23:06:40,997 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-15 23:06:41,017 INFO L225 Difference]: With dead ends: 362 [2020-09-15 23:06:41,017 INFO L226 Difference]: Without dead ends: 298 [2020-09-15 23:06:41,019 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-09-15 23:06:41,048 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 298 states. [2020-09-15 23:06:41,096 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 298 to 298. [2020-09-15 23:06:41,097 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 298 states. [2020-09-15 23:06:41,104 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 298 states to 298 states and 864 transitions. [2020-09-15 23:06:41,106 INFO L78 Accepts]: Start accepts. Automaton has 298 states and 864 transitions. Word has length 8 [2020-09-15 23:06:41,107 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-15 23:06:41,108 INFO L479 AbstractCegarLoop]: Abstraction has 298 states and 864 transitions. [2020-09-15 23:06:41,108 INFO L480 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-09-15 23:06:41,108 INFO L276 IsEmpty]: Start isEmpty. Operand 298 states and 864 transitions. [2020-09-15 23:06:41,109 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-09-15 23:06:41,109 INFO L414 BasicCegarLoop]: Found error trace [2020-09-15 23:06:41,110 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-15 23:06:41,110 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-15 23:06:41,110 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-15 23:06:41,111 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-15 23:06:41,111 INFO L82 PathProgramCache]: Analyzing trace with hash 43425274, now seen corresponding path program 1 times [2020-09-15 23:06:41,111 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-15 23:06:41,112 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [291174140] [2020-09-15 23:06:41,112 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-15 23:06:41,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-15 23:06:41,294 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-15 23:06:41,296 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [291174140] [2020-09-15 23:06:41,297 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-15 23:06:41,297 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-09-15 23:06:41,297 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [483512047] [2020-09-15 23:06:41,298 INFO L216 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-09-15 23:06:41,299 INFO L271 McrAutomatonBuilder]: Started intersection. [2020-09-15 23:06:41,304 INFO L274 McrAutomatonBuilder]: Finished intersection with 10 states and 9 transitions. [2020-09-15 23:06:41,304 INFO L299 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-09-15 23:06:41,305 INFO L399 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-09-15 23:06:41,308 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-15 23:06:41,309 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-15 23:06:41,309 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-15 23:06:41,309 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-15 23:06:41,309 INFO L87 Difference]: Start difference. First operand 298 states and 864 transitions. Second operand 4 states. [2020-09-15 23:06:41,378 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-15 23:06:41,378 INFO L93 Difference]: Finished difference Result 330 states and 912 transitions. [2020-09-15 23:06:41,380 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-15 23:06:41,380 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 9 [2020-09-15 23:06:41,381 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-15 23:06:41,386 INFO L225 Difference]: With dead ends: 330 [2020-09-15 23:06:41,386 INFO L226 Difference]: Without dead ends: 266 [2020-09-15 23:06:41,387 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-15 23:06:41,396 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 266 states. [2020-09-15 23:06:41,427 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 266 to 266. [2020-09-15 23:06:41,428 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 266 states. [2020-09-15 23:06:41,430 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 266 states to 266 states and 752 transitions. [2020-09-15 23:06:41,431 INFO L78 Accepts]: Start accepts. Automaton has 266 states and 752 transitions. Word has length 9 [2020-09-15 23:06:41,431 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-15 23:06:41,431 INFO L479 AbstractCegarLoop]: Abstraction has 266 states and 752 transitions. [2020-09-15 23:06:41,431 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-15 23:06:41,431 INFO L276 IsEmpty]: Start isEmpty. Operand 266 states and 752 transitions. [2020-09-15 23:06:41,433 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-09-15 23:06:41,433 INFO L414 BasicCegarLoop]: Found error trace [2020-09-15 23:06:41,433 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-15 23:06:41,434 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-15 23:06:41,434 INFO L427 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-15 23:06:41,434 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-15 23:06:41,434 INFO L82 PathProgramCache]: Analyzing trace with hash 1226466257, now seen corresponding path program 1 times [2020-09-15 23:06:41,435 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-15 23:06:41,435 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1389002779] [2020-09-15 23:06:41,435 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-15 23:06:41,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-15 23:06:41,515 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-15 23:06:41,515 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1389002779] [2020-09-15 23:06:41,516 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-15 23:06:41,516 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-09-15 23:06:41,516 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [206284823] [2020-09-15 23:06:41,516 INFO L216 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-09-15 23:06:41,517 INFO L271 McrAutomatonBuilder]: Started intersection. [2020-09-15 23:06:41,519 INFO L274 McrAutomatonBuilder]: Finished intersection with 14 states and 16 transitions. [2020-09-15 23:06:41,520 INFO L299 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-09-15 23:06:41,551 INFO L399 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-09-15 23:06:41,552 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-15 23:06:41,552 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-15 23:06:41,552 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-15 23:06:41,553 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-15 23:06:41,553 INFO L87 Difference]: Start difference. First operand 266 states and 752 transitions. Second operand 4 states. [2020-09-15 23:06:41,578 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-15 23:06:41,579 INFO L93 Difference]: Finished difference Result 290 states and 786 transitions. [2020-09-15 23:06:41,579 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-15 23:06:41,579 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 10 [2020-09-15 23:06:41,580 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-15 23:06:41,582 INFO L225 Difference]: With dead ends: 290 [2020-09-15 23:06:41,582 INFO L226 Difference]: Without dead ends: 242 [2020-09-15 23:06:41,583 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-15 23:06:41,585 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 242 states. [2020-09-15 23:06:41,595 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 242 to 242. [2020-09-15 23:06:41,596 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 242 states. [2020-09-15 23:06:41,597 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 242 states to 242 states and 670 transitions. [2020-09-15 23:06:41,598 INFO L78 Accepts]: Start accepts. Automaton has 242 states and 670 transitions. Word has length 10 [2020-09-15 23:06:41,598 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-15 23:06:41,598 INFO L479 AbstractCegarLoop]: Abstraction has 242 states and 670 transitions. [2020-09-15 23:06:41,598 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-15 23:06:41,599 INFO L276 IsEmpty]: Start isEmpty. Operand 242 states and 670 transitions. [2020-09-15 23:06:41,600 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-09-15 23:06:41,600 INFO L414 BasicCegarLoop]: Found error trace [2020-09-15 23:06:41,601 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-15 23:06:41,601 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-15 23:06:41,601 INFO L427 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-15 23:06:41,601 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-15 23:06:41,602 INFO L82 PathProgramCache]: Analyzing trace with hash -635370963, now seen corresponding path program 1 times [2020-09-15 23:06:41,602 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-15 23:06:41,602 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1962994294] [2020-09-15 23:06:41,602 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-15 23:06:41,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-15 23:06:41,735 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-15 23:06:41,736 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1962994294] [2020-09-15 23:06:41,736 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-15 23:06:41,736 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-15 23:06:41,737 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1135212008] [2020-09-15 23:06:41,737 INFO L216 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-09-15 23:06:41,738 INFO L271 McrAutomatonBuilder]: Started intersection. [2020-09-15 23:06:41,740 INFO L274 McrAutomatonBuilder]: Finished intersection with 18 states and 24 transitions. [2020-09-15 23:06:41,740 INFO L299 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-09-15 23:06:41,782 INFO L399 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-09-15 23:06:41,783 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-15 23:06:41,783 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-15 23:06:41,783 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-15 23:06:41,784 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-09-15 23:06:41,784 INFO L87 Difference]: Start difference. First operand 242 states and 670 transitions. Second operand 5 states. [2020-09-15 23:06:41,840 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-15 23:06:41,840 INFO L93 Difference]: Finished difference Result 302 states and 803 transitions. [2020-09-15 23:06:41,840 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-15 23:06:41,841 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 11 [2020-09-15 23:06:41,841 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-15 23:06:41,842 INFO L225 Difference]: With dead ends: 302 [2020-09-15 23:06:41,842 INFO L226 Difference]: Without dead ends: 146 [2020-09-15 23:06:41,843 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-09-15 23:06:41,844 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 146 states. [2020-09-15 23:06:41,848 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 146 to 146. [2020-09-15 23:06:41,849 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 146 states. [2020-09-15 23:06:41,850 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 146 states to 146 states and 358 transitions. [2020-09-15 23:06:41,850 INFO L78 Accepts]: Start accepts. Automaton has 146 states and 358 transitions. Word has length 11 [2020-09-15 23:06:41,850 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-15 23:06:41,850 INFO L479 AbstractCegarLoop]: Abstraction has 146 states and 358 transitions. [2020-09-15 23:06:41,850 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-15 23:06:41,851 INFO L276 IsEmpty]: Start isEmpty. Operand 146 states and 358 transitions. [2020-09-15 23:06:41,852 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-09-15 23:06:41,852 INFO L414 BasicCegarLoop]: Found error trace [2020-09-15 23:06:41,852 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-15 23:06:41,853 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-15 23:06:41,853 INFO L427 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-15 23:06:41,853 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-15 23:06:41,853 INFO L82 PathProgramCache]: Analyzing trace with hash 257080554, now seen corresponding path program 1 times [2020-09-15 23:06:41,854 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-15 23:06:41,854 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [695332006] [2020-09-15 23:06:41,854 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-15 23:06:41,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-15 23:06:41,935 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-15 23:06:41,936 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [695332006] [2020-09-15 23:06:41,936 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-15 23:06:41,936 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-15 23:06:41,940 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1245751225] [2020-09-15 23:06:41,940 INFO L216 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-09-15 23:06:41,942 INFO L271 McrAutomatonBuilder]: Started intersection. [2020-09-15 23:06:41,947 INFO L274 McrAutomatonBuilder]: Finished intersection with 34 states and 56 transitions. [2020-09-15 23:06:41,947 INFO L299 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-09-15 23:06:42,087 INFO L399 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-09-15 23:06:42,087 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-15 23:06:42,087 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-15 23:06:42,088 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-15 23:06:42,088 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-09-15 23:06:42,088 INFO L87 Difference]: Start difference. First operand 146 states and 358 transitions. Second operand 5 states. [2020-09-15 23:06:42,144 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-15 23:06:42,144 INFO L93 Difference]: Finished difference Result 188 states and 451 transitions. [2020-09-15 23:06:42,144 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-15 23:06:42,145 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 13 [2020-09-15 23:06:42,145 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-15 23:06:42,146 INFO L225 Difference]: With dead ends: 188 [2020-09-15 23:06:42,146 INFO L226 Difference]: Without dead ends: 74 [2020-09-15 23:06:42,146 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-09-15 23:06:42,147 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74 states. [2020-09-15 23:06:42,149 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74 to 74. [2020-09-15 23:06:42,150 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 74 states. [2020-09-15 23:06:42,150 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 164 transitions. [2020-09-15 23:06:42,150 INFO L78 Accepts]: Start accepts. Automaton has 74 states and 164 transitions. Word has length 13 [2020-09-15 23:06:42,151 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-15 23:06:42,151 INFO L479 AbstractCegarLoop]: Abstraction has 74 states and 164 transitions. [2020-09-15 23:06:42,151 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-15 23:06:42,151 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 164 transitions. [2020-09-15 23:06:42,152 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-09-15 23:06:42,152 INFO L414 BasicCegarLoop]: Found error trace [2020-09-15 23:06:42,152 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-15 23:06:42,152 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-15 23:06:42,153 INFO L427 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-15 23:06:42,153 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-15 23:06:42,153 INFO L82 PathProgramCache]: Analyzing trace with hash -2118870046, now seen corresponding path program 1 times [2020-09-15 23:06:42,153 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-15 23:06:42,154 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [834909512] [2020-09-15 23:06:42,154 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-15 23:06:42,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-15 23:06:42,231 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-15 23:06:42,232 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [834909512] [2020-09-15 23:06:42,232 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-15 23:06:42,232 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-15 23:06:42,232 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1966027131] [2020-09-15 23:06:42,232 INFO L216 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-09-15 23:06:42,234 INFO L271 McrAutomatonBuilder]: Started intersection. [2020-09-15 23:06:42,237 INFO L274 McrAutomatonBuilder]: Finished intersection with 20 states and 24 transitions. [2020-09-15 23:06:42,237 INFO L299 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-09-15 23:06:42,246 INFO L399 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-09-15 23:06:42,246 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-15 23:06:42,246 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-15 23:06:42,247 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-15 23:06:42,247 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-09-15 23:06:42,247 INFO L87 Difference]: Start difference. First operand 74 states and 164 transitions. Second operand 5 states. [2020-09-15 23:06:42,317 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-15 23:06:42,317 INFO L93 Difference]: Finished difference Result 62 states and 132 transitions. [2020-09-15 23:06:42,317 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-15 23:06:42,318 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 14 [2020-09-15 23:06:42,318 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-15 23:06:42,318 INFO L225 Difference]: With dead ends: 62 [2020-09-15 23:06:42,318 INFO L226 Difference]: Without dead ends: 0 [2020-09-15 23:06:42,319 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-09-15 23:06:42,319 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-09-15 23:06:42,319 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-09-15 23:06:42,319 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-09-15 23:06:42,320 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-09-15 23:06:42,320 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 14 [2020-09-15 23:06:42,320 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-15 23:06:42,320 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-09-15 23:06:42,320 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-15 23:06:42,320 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-09-15 23:06:42,321 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-09-15 23:06:42,321 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-15 23:06:42,326 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.09 11:06:42 BasicIcfg [2020-09-15 23:06:42,326 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-15 23:06:42,329 INFO L168 Benchmark]: Toolchain (without parser) took 4994.57 ms. Allocated memory was 138.4 MB in the beginning and 250.1 MB in the end (delta: 111.7 MB). Free memory was 100.2 MB in the beginning and 212.1 MB in the end (delta: -111.9 MB). There was no memory consumed. Max. memory is 7.1 GB. [2020-09-15 23:06:42,330 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 138.4 MB. Free memory was 120.0 MB in the beginning and 119.8 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-09-15 23:06:42,331 INFO L168 Benchmark]: CACSL2BoogieTranslator took 855.69 ms. Allocated memory was 138.4 MB in the beginning and 201.9 MB in the end (delta: 63.4 MB). Free memory was 99.5 MB in the beginning and 159.6 MB in the end (delta: -60.0 MB). Peak memory consumption was 27.0 MB. Max. memory is 7.1 GB. [2020-09-15 23:06:42,332 INFO L168 Benchmark]: Boogie Procedure Inliner took 93.99 ms. Allocated memory is still 201.9 MB. Free memory was 159.6 MB in the beginning and 157.5 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. [2020-09-15 23:06:42,332 INFO L168 Benchmark]: Boogie Preprocessor took 48.11 ms. Allocated memory is still 201.9 MB. Free memory was 157.5 MB in the beginning and 156.2 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 7.1 GB. [2020-09-15 23:06:42,333 INFO L168 Benchmark]: RCFGBuilder took 540.19 ms. Allocated memory is still 201.9 MB. Free memory was 156.2 MB in the beginning and 133.5 MB in the end (delta: 22.6 MB). Peak memory consumption was 22.6 MB. Max. memory is 7.1 GB. [2020-09-15 23:06:42,334 INFO L168 Benchmark]: TraceAbstraction took 3447.05 ms. Allocated memory was 201.9 MB in the beginning and 250.1 MB in the end (delta: 48.2 MB). Free memory was 133.5 MB in the beginning and 212.1 MB in the end (delta: -78.6 MB). There was no memory consumed. Max. memory is 7.1 GB. [2020-09-15 23:06:42,338 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 138.4 MB. Free memory was 120.0 MB in the beginning and 119.8 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 855.69 ms. Allocated memory was 138.4 MB in the beginning and 201.9 MB in the end (delta: 63.4 MB). Free memory was 99.5 MB in the beginning and 159.6 MB in the end (delta: -60.0 MB). Peak memory consumption was 27.0 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 93.99 ms. Allocated memory is still 201.9 MB. Free memory was 159.6 MB in the beginning and 157.5 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 48.11 ms. Allocated memory is still 201.9 MB. Free memory was 157.5 MB in the beginning and 156.2 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 540.19 ms. Allocated memory is still 201.9 MB. Free memory was 156.2 MB in the beginning and 133.5 MB in the end (delta: 22.6 MB). Peak memory consumption was 22.6 MB. Max. memory is 7.1 GB. * TraceAbstraction took 3447.05 ms. Allocated memory was 201.9 MB in the beginning and 250.1 MB in the end (delta: 48.2 MB). Free memory was 133.5 MB in the beginning and 212.1 MB in the end (delta: -78.6 MB). There was no memory consumed. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 1.5s, 79 ProgramPointsBefore, 32 ProgramPointsAfterwards, 71 TransitionsBefore, 23 TransitionsAfterwards, 1260 CoEnabledTransitionPairs, 6 FixpointIterations, 15 TrivialSequentialCompositions, 32 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 10 ConcurrentYvCompositions, 1 ChoiceCompositions, 668 VarBasedMoverChecksPositive, 20 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 0 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 0 MoverChecksTotal, 2463 CheckedPairsTotal, 57 TotalNumberOfCompositions - PositiveResult [Line: 7]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 70 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 3.3s, OverallIterations: 6, TraceHistogramMax: 1, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.6s, HoareTripleCheckerStatistics: 133 SDtfs, 127 SDslu, 171 SDs, 0 SdLazy, 40 SolverSat, 6 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 60 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=362occurred 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, 6 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 65 NumberOfCodeBlocks, 65 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 59 ConstructedInterpolants, 0 QuantifiedInterpolants, 2035 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...