/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/safe019_pso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-bf4350c [2020-09-18 01:10:57,852 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-18 01:10:57,859 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-18 01:10:57,902 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-18 01:10:57,903 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-18 01:10:57,910 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-18 01:10:57,914 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-18 01:10:57,918 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-18 01:10:57,921 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-18 01:10:57,924 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-18 01:10:57,925 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-18 01:10:57,926 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-18 01:10:57,926 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-18 01:10:57,929 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-18 01:10:57,932 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-18 01:10:57,933 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-18 01:10:57,935 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-18 01:10:57,936 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-18 01:10:57,938 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-18 01:10:57,945 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-18 01:10:57,947 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-18 01:10:57,948 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-18 01:10:57,949 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-18 01:10:57,951 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-18 01:10:57,963 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-18 01:10:57,964 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-18 01:10:57,967 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-18 01:10:57,968 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-18 01:10:57,968 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-18 01:10:57,973 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-18 01:10:57,973 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-18 01:10:57,974 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-18 01:10:57,978 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-18 01:10:57,979 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-18 01:10:57,980 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-18 01:10:57,980 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-18 01:10:57,981 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-18 01:10:57,981 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-18 01:10:57,981 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-18 01:10:57,982 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-18 01:10:57,985 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-18 01:10:57,990 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/mcr/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-McrAutomaton-WP.epf [2020-09-18 01:10:58,034 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-18 01:10:58,035 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-18 01:10:58,037 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-18 01:10:58,037 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-18 01:10:58,038 INFO L138 SettingsManager]: * Use SBE=true [2020-09-18 01:10:58,038 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-18 01:10:58,038 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-18 01:10:58,038 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-18 01:10:58,039 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-18 01:10:58,039 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-18 01:10:58,040 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-18 01:10:58,040 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-18 01:10:58,040 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-18 01:10:58,041 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-18 01:10:58,041 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-18 01:10:58,041 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-18 01:10:58,041 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-18 01:10:58,041 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-18 01:10:58,042 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-18 01:10:58,042 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-18 01:10:58,042 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-18 01:10:58,043 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-18 01:10:58,043 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-18 01:10:58,043 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_NestedInterpolation [2020-09-18 01:10:58,043 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-18 01:10:58,043 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-18 01:10:58,044 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-18 01:10:58,044 INFO L138 SettingsManager]: * Override the interpolant automaton setting of the refinement strategy=true [2020-09-18 01:10:58,044 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=VARIABLE_BASED_MOVER_CHECK [2020-09-18 01:10:58,044 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-18 01:10:58,044 INFO L138 SettingsManager]: * Interpolant automaton=MCR [2020-09-18 01:10:58,528 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-18 01:10:58,563 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-18 01:10:58,568 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-18 01:10:58,570 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-18 01:10:58,571 INFO L275 PluginConnector]: CDTParser initialized [2020-09-18 01:10:58,572 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe019_pso.oepc.i [2020-09-18 01:10:58,656 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/85757354b/a2e813bd28054e208ab9354e872954cb/FLAGb4ec12dee [2020-09-18 01:10:59,308 INFO L306 CDTParser]: Found 1 translation units. [2020-09-18 01:10:59,309 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe019_pso.oepc.i [2020-09-18 01:10:59,339 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/85757354b/a2e813bd28054e208ab9354e872954cb/FLAGb4ec12dee [2020-09-18 01:10:59,542 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/85757354b/a2e813bd28054e208ab9354e872954cb [2020-09-18 01:10:59,556 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-18 01:10:59,565 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-09-18 01:10:59,569 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-18 01:10:59,569 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-18 01:10:59,573 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-18 01:10:59,575 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.09 01:10:59" (1/1) ... [2020-09-18 01:10:59,579 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2372885a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 01:10:59, skipping insertion in model container [2020-09-18 01:10:59,579 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.09 01:10:59" (1/1) ... [2020-09-18 01:10:59,590 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-18 01:10:59,641 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-18 01:11:00,139 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-18 01:11:00,158 INFO L203 MainTranslator]: Completed pre-run [2020-09-18 01:11:00,239 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-18 01:11:00,323 INFO L208 MainTranslator]: Completed translation [2020-09-18 01:11:00,323 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 01:11:00 WrapperNode [2020-09-18 01:11:00,324 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-18 01:11:00,325 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-09-18 01:11:00,326 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-09-18 01:11:00,326 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-09-18 01:11:00,338 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 01:11:00" (1/1) ... [2020-09-18 01:11:00,358 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 01:11:00" (1/1) ... [2020-09-18 01:11:00,388 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-09-18 01:11:00,388 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-18 01:11:00,388 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-18 01:11:00,389 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-18 01:11:00,399 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 01:11:00" (1/1) ... [2020-09-18 01:11:00,399 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 01:11:00" (1/1) ... [2020-09-18 01:11:00,402 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 01:11:00" (1/1) ... [2020-09-18 01:11:00,402 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 01:11:00" (1/1) ... [2020-09-18 01:11:00,410 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 01:11:00" (1/1) ... [2020-09-18 01:11:00,413 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 01:11:00" (1/1) ... [2020-09-18 01:11:00,416 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 01:11:00" (1/1) ... [2020-09-18 01:11:00,419 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-18 01:11:00,420 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-18 01:11:00,420 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-18 01:11:00,420 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-18 01:11:00,422 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 01:11:00" (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 [2020-09-18 01:11:00,506 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-18 01:11:00,506 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-09-18 01:11:00,507 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-18 01:11:00,507 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-18 01:11:00,508 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-09-18 01:11:00,508 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-09-18 01:11:00,508 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-09-18 01:11:00,508 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-09-18 01:11:00,508 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-09-18 01:11:00,508 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-09-18 01:11:00,509 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2020-09-18 01:11:00,509 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2020-09-18 01:11:00,509 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-09-18 01:11:00,509 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-18 01:11:00,509 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-18 01:11:00,512 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-09-18 01:11:00,914 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-18 01:11:00,915 INFO L298 CfgBuilder]: Removed 8 assume(true) statements. [2020-09-18 01:11:00,921 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.09 01:11:00 BoogieIcfgContainer [2020-09-18 01:11:00,921 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-18 01:11:00,922 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-18 01:11:00,923 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-18 01:11:00,929 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-18 01:11:00,930 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.09 01:10:59" (1/3) ... [2020-09-18 01:11:00,931 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@b6bcd02 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.09 01:11:00, skipping insertion in model container [2020-09-18 01:11:00,931 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 01:11:00" (2/3) ... [2020-09-18 01:11:00,932 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@b6bcd02 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.09 01:11:00, skipping insertion in model container [2020-09-18 01:11:00,932 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.09 01:11:00" (3/3) ... [2020-09-18 01:11:00,934 INFO L109 eAbstractionObserver]: Analyzing ICFG safe019_pso.oepc.i [2020-09-18 01:11:00,948 WARN L146 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-09-18 01:11:00,948 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-18 01:11:00,960 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-18 01:11:00,961 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-09-18 01:11:01,003 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 01:11:01,004 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 01:11:01,004 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 01:11:01,004 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 01:11:01,006 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 01:11:01,006 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 01:11:01,006 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 01:11:01,007 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 01:11:01,007 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 01:11:01,007 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 01:11:01,007 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 01:11:01,008 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 01:11:01,010 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 01:11:01,010 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 01:11:01,010 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 01:11:01,011 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 01:11:01,012 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 01:11:01,012 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 01:11:01,013 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 01:11:01,013 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 01:11:01,013 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 01:11:01,014 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 01:11:01,015 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 01:11:01,016 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 01:11:01,023 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 01:11:01,023 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 01:11:01,024 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 01:11:01,024 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 01:11:01,030 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 01:11:01,030 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 01:11:01,030 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 01:11:01,031 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 01:11:01,033 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 01:11:01,033 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 01:11:01,034 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 01:11:01,034 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 01:11:01,036 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 01:11:01,037 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 01:11:01,037 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 01:11:01,037 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 01:11:01,064 INFO L251 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2020-09-18 01:11:01,089 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-18 01:11:01,090 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-18 01:11:01,090 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-18 01:11:01,090 INFO L378 AbstractCegarLoop]: Backedges is MCR [2020-09-18 01:11:01,090 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-18 01:11:01,090 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-18 01:11:01,090 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-18 01:11:01,090 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-18 01:11:01,107 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 92 places, 81 transitions, 182 flow [2020-09-18 01:11:01,109 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 92 places, 81 transitions, 182 flow [2020-09-18 01:11:01,178 INFO L129 PetriNetUnfolder]: 2/77 cut-off events. [2020-09-18 01:11:01,179 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-09-18 01:11:01,186 INFO L80 FinitePrefix]: Finished finitePrefix Result has 90 conditions, 77 events. 2/77 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 59 event pairs, 0 based on Foata normal form. 0/74 useless extension candidates. Maximal degree in co-relation 67. Up to 2 conditions per place. [2020-09-18 01:11:01,193 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 92 places, 81 transitions, 182 flow [2020-09-18 01:11:01,218 INFO L129 PetriNetUnfolder]: 2/77 cut-off events. [2020-09-18 01:11:01,219 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-09-18 01:11:01,220 INFO L80 FinitePrefix]: Finished finitePrefix Result has 90 conditions, 77 events. 2/77 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 59 event pairs, 0 based on Foata normal form. 0/74 useless extension candidates. Maximal degree in co-relation 67. Up to 2 conditions per place. [2020-09-18 01:11:01,222 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 1822 [2020-09-18 01:11:01,224 INFO L182 etLargeBlockEncoding]: Variable Check. [2020-09-18 01:11:02,900 WARN L193 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 46 [2020-09-18 01:11:03,048 WARN L193 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 49 [2020-09-18 01:11:03,136 INFO L206 etLargeBlockEncoding]: Checked pairs total: 3093 [2020-09-18 01:11:03,136 INFO L214 etLargeBlockEncoding]: Total number of compositions: 65 [2020-09-18 01:11:03,141 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 38 places, 25 transitions, 70 flow [2020-09-18 01:11:03,216 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 706 states. [2020-09-18 01:11:03,219 INFO L276 IsEmpty]: Start isEmpty. Operand 706 states. [2020-09-18 01:11:03,237 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-09-18 01:11:03,237 INFO L414 BasicCegarLoop]: Found error trace [2020-09-18 01:11:03,238 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-18 01:11:03,239 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-18 01:11:03,246 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-18 01:11:03,247 INFO L82 PathProgramCache]: Analyzing trace with hash -2005095105, now seen corresponding path program 1 times [2020-09-18 01:11:03,269 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-18 01:11:03,270 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1530712899] [2020-09-18 01:11:03,270 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-18 01:11:03,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-18 01:11:03,554 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-18 01:11:03,555 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1530712899] [2020-09-18 01:11:03,556 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-18 01:11:03,557 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-09-18 01:11:03,558 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [734337869] [2020-09-18 01:11:03,559 INFO L216 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-09-18 01:11:03,563 INFO L271 McrAutomatonBuilder]: Started intersection. [2020-09-18 01:11:03,583 INFO L274 McrAutomatonBuilder]: Finished intersection with 11 states and 10 transitions. [2020-09-18 01:11:03,583 INFO L299 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-09-18 01:11:03,585 INFO L409 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-09-18 01:11:03,586 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-18 01:11:03,587 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-18 01:11:03,605 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-18 01:11:03,606 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-18 01:11:03,608 INFO L87 Difference]: Start difference. First operand 706 states. Second operand 3 states. [2020-09-18 01:11:03,697 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-18 01:11:03,697 INFO L93 Difference]: Finished difference Result 670 states and 2295 transitions. [2020-09-18 01:11:03,698 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-18 01:11:03,699 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10 [2020-09-18 01:11:03,702 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-18 01:11:03,740 INFO L225 Difference]: With dead ends: 670 [2020-09-18 01:11:03,741 INFO L226 Difference]: Without dead ends: 526 [2020-09-18 01:11:03,742 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-18 01:11:03,788 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 526 states. [2020-09-18 01:11:03,872 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 526 to 526. [2020-09-18 01:11:03,874 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 526 states. [2020-09-18 01:11:03,880 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 526 states to 526 states and 1743 transitions. [2020-09-18 01:11:03,882 INFO L78 Accepts]: Start accepts. Automaton has 526 states and 1743 transitions. Word has length 10 [2020-09-18 01:11:03,883 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-18 01:11:03,883 INFO L479 AbstractCegarLoop]: Abstraction has 526 states and 1743 transitions. [2020-09-18 01:11:03,883 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-18 01:11:03,883 INFO L276 IsEmpty]: Start isEmpty. Operand 526 states and 1743 transitions. [2020-09-18 01:11:03,886 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-09-18 01:11:03,886 INFO L414 BasicCegarLoop]: Found error trace [2020-09-18 01:11:03,886 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-18 01:11:03,886 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-18 01:11:03,887 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-18 01:11:03,887 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-18 01:11:03,887 INFO L82 PathProgramCache]: Analyzing trace with hash -2027540211, now seen corresponding path program 1 times [2020-09-18 01:11:03,888 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-18 01:11:03,888 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [233270115] [2020-09-18 01:11:03,888 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-18 01:11:03,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-18 01:11:04,041 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-18 01:11:04,042 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [233270115] [2020-09-18 01:11:04,042 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-18 01:11:04,042 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-09-18 01:11:04,043 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [88800756] [2020-09-18 01:11:04,043 INFO L216 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-09-18 01:11:04,044 INFO L271 McrAutomatonBuilder]: Started intersection. [2020-09-18 01:11:04,047 INFO L274 McrAutomatonBuilder]: Finished intersection with 19 states and 25 transitions. [2020-09-18 01:11:04,048 INFO L299 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-09-18 01:11:04,117 INFO L409 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-09-18 01:11:04,119 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-18 01:11:04,119 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-18 01:11:04,119 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-18 01:11:04,120 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-18 01:11:04,120 INFO L87 Difference]: Start difference. First operand 526 states and 1743 transitions. Second operand 4 states. [2020-09-18 01:11:04,157 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-18 01:11:04,158 INFO L93 Difference]: Finished difference Result 724 states and 2331 transitions. [2020-09-18 01:11:04,158 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-09-18 01:11:04,158 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2020-09-18 01:11:04,159 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-18 01:11:04,163 INFO L225 Difference]: With dead ends: 724 [2020-09-18 01:11:04,163 INFO L226 Difference]: Without dead ends: 412 [2020-09-18 01:11:04,164 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-18 01:11:04,167 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 412 states. [2020-09-18 01:11:04,183 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 412 to 412. [2020-09-18 01:11:04,184 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 412 states. [2020-09-18 01:11:04,187 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 412 states to 412 states and 1323 transitions. [2020-09-18 01:11:04,188 INFO L78 Accepts]: Start accepts. Automaton has 412 states and 1323 transitions. Word has length 11 [2020-09-18 01:11:04,188 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-18 01:11:04,188 INFO L479 AbstractCegarLoop]: Abstraction has 412 states and 1323 transitions. [2020-09-18 01:11:04,188 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-18 01:11:04,188 INFO L276 IsEmpty]: Start isEmpty. Operand 412 states and 1323 transitions. [2020-09-18 01:11:04,190 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-09-18 01:11:04,191 INFO L414 BasicCegarLoop]: Found error trace [2020-09-18 01:11:04,191 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-18 01:11:04,191 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-18 01:11:04,191 INFO L427 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-18 01:11:04,191 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-18 01:11:04,192 INFO L82 PathProgramCache]: Analyzing trace with hash 1543893440, now seen corresponding path program 1 times [2020-09-18 01:11:04,192 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-18 01:11:04,192 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [893025430] [2020-09-18 01:11:04,193 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-18 01:11:04,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-18 01:11:04,267 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-18 01:11:04,268 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [893025430] [2020-09-18 01:11:04,268 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-18 01:11:04,268 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-09-18 01:11:04,269 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [649585859] [2020-09-18 01:11:04,269 INFO L216 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-09-18 01:11:04,270 INFO L271 McrAutomatonBuilder]: Started intersection. [2020-09-18 01:11:04,274 INFO L274 McrAutomatonBuilder]: Finished intersection with 15 states and 16 transitions. [2020-09-18 01:11:04,275 INFO L299 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-09-18 01:11:04,296 INFO L409 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-09-18 01:11:04,297 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-18 01:11:04,297 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-18 01:11:04,297 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-18 01:11:04,297 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-18 01:11:04,298 INFO L87 Difference]: Start difference. First operand 412 states and 1323 transitions. Second operand 3 states. [2020-09-18 01:11:04,310 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-18 01:11:04,310 INFO L93 Difference]: Finished difference Result 394 states and 1254 transitions. [2020-09-18 01:11:04,310 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-18 01:11:04,311 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 12 [2020-09-18 01:11:04,311 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-18 01:11:04,314 INFO L225 Difference]: With dead ends: 394 [2020-09-18 01:11:04,314 INFO L226 Difference]: Without dead ends: 394 [2020-09-18 01:11:04,315 INFO L675 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 [2020-09-18 01:11:04,318 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 394 states. [2020-09-18 01:11:04,328 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 394 to 394. [2020-09-18 01:11:04,329 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 394 states. [2020-09-18 01:11:04,332 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 394 states to 394 states and 1254 transitions. [2020-09-18 01:11:04,332 INFO L78 Accepts]: Start accepts. Automaton has 394 states and 1254 transitions. Word has length 12 [2020-09-18 01:11:04,332 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-18 01:11:04,332 INFO L479 AbstractCegarLoop]: Abstraction has 394 states and 1254 transitions. [2020-09-18 01:11:04,332 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-18 01:11:04,333 INFO L276 IsEmpty]: Start isEmpty. Operand 394 states and 1254 transitions. [2020-09-18 01:11:04,334 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-09-18 01:11:04,334 INFO L414 BasicCegarLoop]: Found error trace [2020-09-18 01:11:04,335 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-18 01:11:04,335 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-18 01:11:04,335 INFO L427 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-18 01:11:04,335 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-18 01:11:04,336 INFO L82 PathProgramCache]: Analyzing trace with hash 1381595750, now seen corresponding path program 1 times [2020-09-18 01:11:04,336 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-18 01:11:04,336 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1494847774] [2020-09-18 01:11:04,336 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-18 01:11:04,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-18 01:11:04,397 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-18 01:11:04,397 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1494847774] [2020-09-18 01:11:04,398 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-18 01:11:04,398 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-18 01:11:04,398 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [23207287] [2020-09-18 01:11:04,399 INFO L216 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-09-18 01:11:04,400 INFO L271 McrAutomatonBuilder]: Started intersection. [2020-09-18 01:11:04,403 INFO L274 McrAutomatonBuilder]: Finished intersection with 23 states and 31 transitions. [2020-09-18 01:11:04,404 INFO L299 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-09-18 01:11:04,433 INFO L409 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-09-18 01:11:04,434 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-18 01:11:04,434 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-18 01:11:04,435 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-18 01:11:04,435 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-18 01:11:04,435 INFO L87 Difference]: Start difference. First operand 394 states and 1254 transitions. Second operand 4 states. [2020-09-18 01:11:04,467 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-18 01:11:04,468 INFO L93 Difference]: Finished difference Result 652 states and 1957 transitions. [2020-09-18 01:11:04,468 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-18 01:11:04,468 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 13 [2020-09-18 01:11:04,469 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-18 01:11:04,471 INFO L225 Difference]: With dead ends: 652 [2020-09-18 01:11:04,471 INFO L226 Difference]: Without dead ends: 340 [2020-09-18 01:11:04,472 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-18 01:11:04,474 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 340 states. [2020-09-18 01:11:04,483 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 340 to 304. [2020-09-18 01:11:04,484 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 304 states. [2020-09-18 01:11:04,486 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 304 states to 304 states and 891 transitions. [2020-09-18 01:11:04,486 INFO L78 Accepts]: Start accepts. Automaton has 304 states and 891 transitions. Word has length 13 [2020-09-18 01:11:04,486 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-18 01:11:04,486 INFO L479 AbstractCegarLoop]: Abstraction has 304 states and 891 transitions. [2020-09-18 01:11:04,505 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-18 01:11:04,505 INFO L276 IsEmpty]: Start isEmpty. Operand 304 states and 891 transitions. [2020-09-18 01:11:04,509 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-09-18 01:11:04,509 INFO L414 BasicCegarLoop]: Found error trace [2020-09-18 01:11:04,510 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-18 01:11:04,510 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-18 01:11:04,510 INFO L427 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-18 01:11:04,510 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-18 01:11:04,510 INFO L82 PathProgramCache]: Analyzing trace with hash 1391724752, now seen corresponding path program 1 times [2020-09-18 01:11:04,511 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-18 01:11:04,511 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [46807755] [2020-09-18 01:11:04,511 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-18 01:11:04,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-18 01:11:04,630 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-18 01:11:04,630 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [46807755] [2020-09-18 01:11:04,631 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-18 01:11:04,631 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-09-18 01:11:04,631 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [183849256] [2020-09-18 01:11:04,631 INFO L216 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-09-18 01:11:04,633 INFO L271 McrAutomatonBuilder]: Started intersection. [2020-09-18 01:11:04,636 INFO L274 McrAutomatonBuilder]: Finished intersection with 23 states and 33 transitions. [2020-09-18 01:11:04,637 INFO L299 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-09-18 01:11:04,685 INFO L409 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-09-18 01:11:04,686 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-18 01:11:04,686 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-18 01:11:04,686 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-18 01:11:04,687 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-18 01:11:04,687 INFO L87 Difference]: Start difference. First operand 304 states and 891 transitions. Second operand 4 states. [2020-09-18 01:11:04,711 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-18 01:11:04,712 INFO L93 Difference]: Finished difference Result 406 states and 1128 transitions. [2020-09-18 01:11:04,712 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-09-18 01:11:04,712 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 13 [2020-09-18 01:11:04,713 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-18 01:11:04,715 INFO L225 Difference]: With dead ends: 406 [2020-09-18 01:11:04,715 INFO L226 Difference]: Without dead ends: 226 [2020-09-18 01:11:04,715 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-18 01:11:04,717 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 226 states. [2020-09-18 01:11:04,722 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 226 to 226. [2020-09-18 01:11:04,723 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 226 states. [2020-09-18 01:11:04,724 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 226 states to 226 states and 619 transitions. [2020-09-18 01:11:04,725 INFO L78 Accepts]: Start accepts. Automaton has 226 states and 619 transitions. Word has length 13 [2020-09-18 01:11:04,725 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-18 01:11:04,725 INFO L479 AbstractCegarLoop]: Abstraction has 226 states and 619 transitions. [2020-09-18 01:11:04,725 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-18 01:11:04,726 INFO L276 IsEmpty]: Start isEmpty. Operand 226 states and 619 transitions. [2020-09-18 01:11:04,726 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-09-18 01:11:04,726 INFO L414 BasicCegarLoop]: Found error trace [2020-09-18 01:11:04,727 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-18 01:11:04,727 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-18 01:11:04,727 INFO L427 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-18 01:11:04,727 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-18 01:11:04,728 INFO L82 PathProgramCache]: Analyzing trace with hash 1162350155, now seen corresponding path program 1 times [2020-09-18 01:11:04,728 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-18 01:11:04,728 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1975845328] [2020-09-18 01:11:04,729 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-18 01:11:04,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-18 01:11:04,832 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-18 01:11:04,833 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1975845328] [2020-09-18 01:11:04,833 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-18 01:11:04,833 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-09-18 01:11:04,833 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [725434798] [2020-09-18 01:11:04,834 INFO L216 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-09-18 01:11:04,836 INFO L271 McrAutomatonBuilder]: Started intersection. [2020-09-18 01:11:04,842 INFO L274 McrAutomatonBuilder]: Finished intersection with 33 states and 54 transitions. [2020-09-18 01:11:04,842 INFO L299 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-09-18 01:11:04,871 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-09-18 01:11:04,898 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-09-18 01:11:04,910 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-09-18 01:11:04,928 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-09-18 01:11:04,944 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-09-18 01:11:04,962 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-09-18 01:11:04,978 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-09-18 01:11:04,999 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-09-18 01:11:05,021 INFO L409 McrAutomatonBuilder]: Construction finished. MCR generated 1 new interpolants: [8106#(not (= 4 ~__unbuffered_cnt~0))] [2020-09-18 01:11:05,022 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-18 01:11:05,022 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-18 01:11:05,022 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-18 01:11:05,023 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-18 01:11:05,023 INFO L87 Difference]: Start difference. First operand 226 states and 619 transitions. Second operand 5 states. [2020-09-18 01:11:05,094 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-18 01:11:05,095 INFO L93 Difference]: Finished difference Result 243 states and 599 transitions. [2020-09-18 01:11:05,095 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-18 01:11:05,095 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 14 [2020-09-18 01:11:05,096 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-18 01:11:05,097 INFO L225 Difference]: With dead ends: 243 [2020-09-18 01:11:05,097 INFO L226 Difference]: Without dead ends: 162 [2020-09-18 01:11:05,098 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 15 SyntacticMatches, 2 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-09-18 01:11:05,099 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 162 states. [2020-09-18 01:11:05,102 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 162 to 162. [2020-09-18 01:11:05,102 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 162 states. [2020-09-18 01:11:05,103 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 162 states to 162 states and 369 transitions. [2020-09-18 01:11:05,103 INFO L78 Accepts]: Start accepts. Automaton has 162 states and 369 transitions. Word has length 14 [2020-09-18 01:11:05,104 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-18 01:11:05,104 INFO L479 AbstractCegarLoop]: Abstraction has 162 states and 369 transitions. [2020-09-18 01:11:05,104 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-18 01:11:05,104 INFO L276 IsEmpty]: Start isEmpty. Operand 162 states and 369 transitions. [2020-09-18 01:11:05,105 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-09-18 01:11:05,105 INFO L414 BasicCegarLoop]: Found error trace [2020-09-18 01:11:05,105 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-18 01:11:05,105 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-18 01:11:05,105 INFO L427 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-18 01:11:05,106 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-18 01:11:05,106 INFO L82 PathProgramCache]: Analyzing trace with hash -469082430, now seen corresponding path program 1 times [2020-09-18 01:11:05,106 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-18 01:11:05,107 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1389310301] [2020-09-18 01:11:05,107 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-18 01:11:05,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-18 01:11:05,200 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-18 01:11:05,201 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1389310301] [2020-09-18 01:11:05,201 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-18 01:11:05,201 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-18 01:11:05,201 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [501868626] [2020-09-18 01:11:05,202 INFO L216 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-09-18 01:11:05,204 INFO L271 McrAutomatonBuilder]: Started intersection. [2020-09-18 01:11:05,210 INFO L274 McrAutomatonBuilder]: Finished intersection with 38 states and 62 transitions. [2020-09-18 01:11:05,210 INFO L299 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-09-18 01:11:05,226 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-09-18 01:11:05,246 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-09-18 01:11:05,271 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-09-18 01:11:05,386 INFO L409 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-09-18 01:11:05,387 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-18 01:11:05,387 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-18 01:11:05,387 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-18 01:11:05,388 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-09-18 01:11:05,388 INFO L87 Difference]: Start difference. First operand 162 states and 369 transitions. Second operand 6 states. [2020-09-18 01:11:05,456 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-18 01:11:05,457 INFO L93 Difference]: Finished difference Result 158 states and 337 transitions. [2020-09-18 01:11:05,457 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-18 01:11:05,457 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 16 [2020-09-18 01:11:05,458 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-18 01:11:05,459 INFO L225 Difference]: With dead ends: 158 [2020-09-18 01:11:05,459 INFO L226 Difference]: Without dead ends: 125 [2020-09-18 01:11:05,459 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 18 SyntacticMatches, 3 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2020-09-18 01:11:05,460 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 125 states. [2020-09-18 01:11:05,463 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 125 to 125. [2020-09-18 01:11:05,463 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 125 states. [2020-09-18 01:11:05,464 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125 states to 125 states and 265 transitions. [2020-09-18 01:11:05,464 INFO L78 Accepts]: Start accepts. Automaton has 125 states and 265 transitions. Word has length 16 [2020-09-18 01:11:05,464 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-18 01:11:05,464 INFO L479 AbstractCegarLoop]: Abstraction has 125 states and 265 transitions. [2020-09-18 01:11:05,464 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-18 01:11:05,465 INFO L276 IsEmpty]: Start isEmpty. Operand 125 states and 265 transitions. [2020-09-18 01:11:05,465 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-09-18 01:11:05,465 INFO L414 BasicCegarLoop]: Found error trace [2020-09-18 01:11:05,465 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-18 01:11:05,466 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-09-18 01:11:05,466 INFO L427 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-18 01:11:05,466 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-18 01:11:05,466 INFO L82 PathProgramCache]: Analyzing trace with hash 483879941, now seen corresponding path program 1 times [2020-09-18 01:11:05,467 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-18 01:11:05,467 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [340885924] [2020-09-18 01:11:05,467 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-18 01:11:05,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-18 01:11:05,578 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-18 01:11:05,579 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [340885924] [2020-09-18 01:11:05,579 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-18 01:11:05,579 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-18 01:11:05,579 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [2101202553] [2020-09-18 01:11:05,580 INFO L216 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-09-18 01:11:05,582 INFO L271 McrAutomatonBuilder]: Started intersection. [2020-09-18 01:11:05,588 INFO L274 McrAutomatonBuilder]: Finished intersection with 40 states and 58 transitions. [2020-09-18 01:11:05,588 INFO L299 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-09-18 01:11:05,608 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-09-18 01:11:05,641 INFO L409 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-09-18 01:11:05,641 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-18 01:11:05,641 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-18 01:11:05,642 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-18 01:11:05,642 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-09-18 01:11:05,642 INFO L87 Difference]: Start difference. First operand 125 states and 265 transitions. Second operand 7 states. [2020-09-18 01:11:05,727 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-18 01:11:05,727 INFO L93 Difference]: Finished difference Result 120 states and 253 transitions. [2020-09-18 01:11:05,727 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-09-18 01:11:05,727 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 18 [2020-09-18 01:11:05,728 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-18 01:11:05,728 INFO L225 Difference]: With dead ends: 120 [2020-09-18 01:11:05,729 INFO L226 Difference]: Without dead ends: 71 [2020-09-18 01:11:05,729 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 14 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2020-09-18 01:11:05,729 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71 states. [2020-09-18 01:11:05,731 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71 to 71. [2020-09-18 01:11:05,732 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 71 states. [2020-09-18 01:11:05,732 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 71 states and 143 transitions. [2020-09-18 01:11:05,732 INFO L78 Accepts]: Start accepts. Automaton has 71 states and 143 transitions. Word has length 18 [2020-09-18 01:11:05,733 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-18 01:11:05,733 INFO L479 AbstractCegarLoop]: Abstraction has 71 states and 143 transitions. [2020-09-18 01:11:05,733 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-18 01:11:05,733 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 143 transitions. [2020-09-18 01:11:05,733 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2020-09-18 01:11:05,734 INFO L414 BasicCegarLoop]: Found error trace [2020-09-18 01:11:05,734 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-18 01:11:05,734 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-09-18 01:11:05,734 INFO L427 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-18 01:11:05,734 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-18 01:11:05,735 INFO L82 PathProgramCache]: Analyzing trace with hash 1087350585, now seen corresponding path program 1 times [2020-09-18 01:11:05,735 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-18 01:11:05,735 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [246578497] [2020-09-18 01:11:05,735 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-18 01:11:05,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-18 01:11:05,798 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-18 01:11:05,799 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [246578497] [2020-09-18 01:11:05,799 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-18 01:11:05,799 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-18 01:11:05,800 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1108435647] [2020-09-18 01:11:05,800 INFO L216 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-09-18 01:11:05,802 INFO L271 McrAutomatonBuilder]: Started intersection. [2020-09-18 01:11:05,811 INFO L274 McrAutomatonBuilder]: Finished intersection with 44 states and 63 transitions. [2020-09-18 01:11:05,811 INFO L299 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-09-18 01:11:05,839 INFO L409 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-09-18 01:11:05,840 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-18 01:11:05,840 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-18 01:11:05,840 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-18 01:11:05,841 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-18 01:11:05,841 INFO L87 Difference]: Start difference. First operand 71 states and 143 transitions. Second operand 4 states. [2020-09-18 01:11:05,857 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-18 01:11:05,857 INFO L93 Difference]: Finished difference Result 70 states and 142 transitions. [2020-09-18 01:11:05,858 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-09-18 01:11:05,858 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 20 [2020-09-18 01:11:05,858 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-18 01:11:05,858 INFO L225 Difference]: With dead ends: 70 [2020-09-18 01:11:05,858 INFO L226 Difference]: Without dead ends: 0 [2020-09-18 01:11:05,859 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-18 01:11:05,859 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-09-18 01:11:05,859 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-09-18 01:11:05,859 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-09-18 01:11:05,860 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-09-18 01:11:05,860 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 20 [2020-09-18 01:11:05,860 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-18 01:11:05,860 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-09-18 01:11:05,860 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-18 01:11:05,860 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-09-18 01:11:05,861 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-09-18 01:11:05,861 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-09-18 01:11:05,866 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.09 01:11:05 BasicIcfg [2020-09-18 01:11:05,866 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-18 01:11:05,869 INFO L168 Benchmark]: Toolchain (without parser) took 6311.31 ms. Allocated memory was 108.5 MB in the beginning and 225.4 MB in the end (delta: 116.9 MB). Free memory was 72.9 MB in the beginning and 117.7 MB in the end (delta: -44.8 MB). Peak memory consumption was 72.1 MB. Max. memory is 7.1 GB. [2020-09-18 01:11:05,870 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 108.5 MB. Free memory was 91.9 MB in the beginning and 91.8 MB in the end (delta: 105.2 kB). Peak memory consumption was 105.2 kB. Max. memory is 7.1 GB. [2020-09-18 01:11:05,871 INFO L168 Benchmark]: CACSL2BoogieTranslator took 755.88 ms. Allocated memory was 108.5 MB in the beginning and 168.3 MB in the end (delta: 59.8 MB). Free memory was 72.3 MB in the beginning and 133.2 MB in the end (delta: -60.9 MB). Peak memory consumption was 16.6 MB. Max. memory is 7.1 GB. [2020-09-18 01:11:05,872 INFO L168 Benchmark]: Boogie Procedure Inliner took 62.62 ms. Allocated memory is still 168.3 MB. Free memory was 133.2 MB in the beginning and 131.2 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. [2020-09-18 01:11:05,873 INFO L168 Benchmark]: Boogie Preprocessor took 31.44 ms. Allocated memory is still 168.3 MB. Free memory was 131.2 MB in the beginning and 129.3 MB in the end (delta: 1.9 MB). Peak memory consumption was 1.9 MB. Max. memory is 7.1 GB. [2020-09-18 01:11:05,873 INFO L168 Benchmark]: RCFGBuilder took 500.99 ms. Allocated memory is still 168.3 MB. Free memory was 129.3 MB in the beginning and 105.7 MB in the end (delta: 23.6 MB). Peak memory consumption was 23.6 MB. Max. memory is 7.1 GB. [2020-09-18 01:11:05,874 INFO L168 Benchmark]: TraceAbstraction took 4944.02 ms. Allocated memory was 168.3 MB in the beginning and 225.4 MB in the end (delta: 57.1 MB). Free memory was 105.2 MB in the beginning and 117.7 MB in the end (delta: -12.5 MB). Peak memory consumption was 44.7 MB. Max. memory is 7.1 GB. [2020-09-18 01:11:05,879 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 108.5 MB. Free memory was 91.9 MB in the beginning and 91.8 MB in the end (delta: 105.2 kB). Peak memory consumption was 105.2 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 755.88 ms. Allocated memory was 108.5 MB in the beginning and 168.3 MB in the end (delta: 59.8 MB). Free memory was 72.3 MB in the beginning and 133.2 MB in the end (delta: -60.9 MB). Peak memory consumption was 16.6 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 62.62 ms. Allocated memory is still 168.3 MB. Free memory was 133.2 MB in the beginning and 131.2 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 31.44 ms. Allocated memory is still 168.3 MB. Free memory was 131.2 MB in the beginning and 129.3 MB in the end (delta: 1.9 MB). Peak memory consumption was 1.9 MB. Max. memory is 7.1 GB. * RCFGBuilder took 500.99 ms. Allocated memory is still 168.3 MB. Free memory was 129.3 MB in the beginning and 105.7 MB in the end (delta: 23.6 MB). Peak memory consumption was 23.6 MB. Max. memory is 7.1 GB. * TraceAbstraction took 4944.02 ms. Allocated memory was 168.3 MB in the beginning and 225.4 MB in the end (delta: 57.1 MB). Free memory was 105.2 MB in the beginning and 117.7 MB in the end (delta: -12.5 MB). Peak memory consumption was 44.7 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 2.0s, 92 ProgramPointsBefore, 38 ProgramPointsAfterwards, 81 TransitionsBefore, 25 TransitionsAfterwards, 1822 CoEnabledTransitionPairs, 7 FixpointIterations, 14 TrivialSequentialCompositions, 45 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 6 ConcurrentYvCompositions, 2 ChoiceCompositions, 944 VarBasedMoverChecksPositive, 29 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 0 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 0 MoverChecksTotal, 3093 CheckedPairsTotal, 65 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 5 procedures, 80 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 4.7s, OverallIterations: 9, TraceHistogramMax: 1, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.1s, HoareTripleCheckerStatistics: 198 SDtfs, 178 SDslu, 295 SDs, 0 SdLazy, 161 SolverSat, 46 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 128 GetRequests, 92 SyntacticMatches, 6 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=706occurred 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, 9 MinimizatonAttempts, 36 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 127 NumberOfCodeBlocks, 127 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 118 ConstructedInterpolants, 0 QuantifiedInterpolants, 4842 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 9 InterpolantComputations, 9 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...