/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.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-507b705 [2020-09-11 23:48:54,235 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-11 23:48:54,239 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-11 23:48:54,283 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-11 23:48:54,283 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-11 23:48:54,294 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-11 23:48:54,296 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-11 23:48:54,300 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-11 23:48:54,303 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-11 23:48:54,305 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-11 23:48:54,308 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-11 23:48:54,310 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-11 23:48:54,310 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-11 23:48:54,313 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-11 23:48:54,315 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-11 23:48:54,316 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-11 23:48:54,318 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-11 23:48:54,319 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-11 23:48:54,321 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-11 23:48:54,327 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-11 23:48:54,331 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-11 23:48:54,332 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-11 23:48:54,334 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-11 23:48:54,335 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-11 23:48:54,339 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-11 23:48:54,339 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-11 23:48:54,340 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-11 23:48:54,343 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-11 23:48:54,343 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-11 23:48:54,344 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-11 23:48:54,344 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-11 23:48:54,345 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-11 23:48:54,346 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-11 23:48:54,347 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-11 23:48:54,348 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-11 23:48:54,348 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-11 23:48:54,349 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-11 23:48:54,349 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-11 23:48:54,349 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-11 23:48:54,350 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-11 23:48:54,352 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-11 23:48:54,353 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 [2020-09-11 23:48:54,400 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-11 23:48:54,401 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-11 23:48:54,403 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-11 23:48:54,403 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-11 23:48:54,404 INFO L138 SettingsManager]: * Use SBE=true [2020-09-11 23:48:54,404 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-11 23:48:54,404 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-11 23:48:54,404 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-11 23:48:54,404 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-11 23:48:54,405 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-11 23:48:54,406 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-11 23:48:54,406 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-11 23:48:54,406 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-11 23:48:54,407 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-11 23:48:54,407 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-11 23:48:54,407 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-11 23:48:54,407 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-11 23:48:54,408 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-11 23:48:54,408 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-11 23:48:54,408 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-11 23:48:54,408 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-11 23:48:54,408 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-11 23:48:54,409 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-11 23:48:54,409 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_NestedInterpolation [2020-09-11 23:48:54,409 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-11 23:48:54,409 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-11 23:48:54,409 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-11 23:48:54,410 INFO L138 SettingsManager]: * Override the interpolant automaton setting of the refinement strategy=true [2020-09-11 23:48:54,410 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=VARIABLE_BASED_MOVER_CHECK [2020-09-11 23:48:54,410 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-11 23:48:54,410 INFO L138 SettingsManager]: * Interpolant automaton=MCR [2020-09-11 23:48:54,849 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-11 23:48:54,865 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-11 23:48:54,869 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-11 23:48:54,871 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-11 23:48:54,872 INFO L275 PluginConnector]: CDTParser initialized [2020-09-11 23:48:54,873 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe019_pso.opt.i [2020-09-11 23:48:54,964 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/f6a5b171b/ecc392ffceac4d30ad00d99f8eecd4e3/FLAG29972b1fc [2020-09-11 23:48:55,614 INFO L306 CDTParser]: Found 1 translation units. [2020-09-11 23:48:55,615 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/pthread-wmm/safe019_pso.opt.i [2020-09-11 23:48:55,633 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/f6a5b171b/ecc392ffceac4d30ad00d99f8eecd4e3/FLAG29972b1fc [2020-09-11 23:48:55,914 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/f6a5b171b/ecc392ffceac4d30ad00d99f8eecd4e3 [2020-09-11 23:48:55,927 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-11 23:48:55,933 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-09-11 23:48:55,934 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-11 23:48:55,934 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-11 23:48:55,939 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-11 23:48:55,940 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.09 11:48:55" (1/1) ... [2020-09-11 23:48:55,944 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1a023d37 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 11:48:55, skipping insertion in model container [2020-09-11 23:48:55,944 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.09 11:48:55" (1/1) ... [2020-09-11 23:48:55,954 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-11 23:48:56,005 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-11 23:48:56,580 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-11 23:48:56,600 INFO L203 MainTranslator]: Completed pre-run [2020-09-11 23:48:56,653 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-11 23:48:56,746 INFO L208 MainTranslator]: Completed translation [2020-09-11 23:48:56,746 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 11:48:56 WrapperNode [2020-09-11 23:48:56,746 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-11 23:48:56,747 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-09-11 23:48:56,748 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-09-11 23:48:56,748 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-09-11 23:48:56,759 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 11:48:56" (1/1) ... [2020-09-11 23:48:56,778 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 11:48:56" (1/1) ... [2020-09-11 23:48:56,805 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-09-11 23:48:56,805 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-11 23:48:56,805 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-11 23:48:56,805 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-11 23:48:56,817 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 11:48:56" (1/1) ... [2020-09-11 23:48:56,818 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 11:48:56" (1/1) ... [2020-09-11 23:48:56,821 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 11:48:56" (1/1) ... [2020-09-11 23:48:56,821 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 11:48:56" (1/1) ... [2020-09-11 23:48:56,829 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 11:48:56" (1/1) ... [2020-09-11 23:48:56,832 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 11:48:56" (1/1) ... [2020-09-11 23:48:56,835 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 11:48:56" (1/1) ... [2020-09-11 23:48:56,838 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-11 23:48:56,839 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-11 23:48:56,839 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-11 23:48:56,839 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-11 23:48:56,840 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 11:48:56" (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 [2020-09-11 23:48:56,922 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-11 23:48:56,922 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-09-11 23:48:56,923 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-11 23:48:56,923 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-11 23:48:56,923 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-09-11 23:48:56,924 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-09-11 23:48:56,924 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-09-11 23:48:56,924 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-09-11 23:48:56,926 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-09-11 23:48:56,926 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-09-11 23:48:56,926 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2020-09-11 23:48:56,926 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2020-09-11 23:48:56,926 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-09-11 23:48:56,927 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-11 23:48:56,927 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-11 23:48:56,930 WARN L205 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-09-11 23:48:57,333 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-11 23:48:57,334 INFO L295 CfgBuilder]: Removed 8 assume(true) statements. [2020-09-11 23:48:57,339 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.09 11:48:57 BoogieIcfgContainer [2020-09-11 23:48:57,340 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-11 23:48:57,341 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-11 23:48:57,341 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-11 23:48:57,345 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-11 23:48:57,346 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.09 11:48:55" (1/3) ... [2020-09-11 23:48:57,347 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@245f4a89 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.09 11:48:57, skipping insertion in model container [2020-09-11 23:48:57,347 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 11:48:56" (2/3) ... [2020-09-11 23:48:57,348 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@245f4a89 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.09 11:48:57, skipping insertion in model container [2020-09-11 23:48:57,348 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.09 11:48:57" (3/3) ... [2020-09-11 23:48:57,350 INFO L109 eAbstractionObserver]: Analyzing ICFG safe019_pso.opt.i [2020-09-11 23:48:57,362 WARN L146 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-09-11 23:48:57,363 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-11 23:48:57,373 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-11 23:48:57,374 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-09-11 23:48:57,404 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 23:48:57,405 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 23:48:57,405 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 23:48:57,405 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 23:48:57,406 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 23:48:57,406 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 23:48:57,407 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 23:48:57,407 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 23:48:57,407 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 23:48:57,407 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 23:48:57,408 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 23:48:57,408 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 23:48:57,409 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 23:48:57,409 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 23:48:57,409 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 23:48:57,409 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 23:48:57,410 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 23:48:57,410 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 23:48:57,411 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 23:48:57,411 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 23:48:57,411 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 23:48:57,411 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 23:48:57,412 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 23:48:57,412 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 23:48:57,417 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 23:48:57,417 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 23:48:57,417 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 23:48:57,418 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 23:48:57,430 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 23:48:57,430 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 23:48:57,430 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 23:48:57,431 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 23:48:57,434 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 23:48:57,435 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 23:48:57,435 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 23:48:57,435 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 23:48:57,438 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 23:48:57,438 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 23:48:57,438 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 23:48:57,439 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 23:48:57,463 INFO L251 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2020-09-11 23:48:57,491 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-11 23:48:57,492 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-11 23:48:57,492 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-11 23:48:57,492 INFO L378 AbstractCegarLoop]: Backedges is MCR [2020-09-11 23:48:57,492 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-11 23:48:57,493 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-11 23:48:57,493 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-11 23:48:57,493 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-11 23:48:57,513 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 92 places, 81 transitions, 182 flow [2020-09-11 23:48:57,516 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 92 places, 81 transitions, 182 flow [2020-09-11 23:48:57,579 INFO L129 PetriNetUnfolder]: 2/77 cut-off events. [2020-09-11 23:48:57,580 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-09-11 23:48:57,587 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. [2020-09-11 23:48:57,591 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 92 places, 81 transitions, 182 flow [2020-09-11 23:48:57,615 INFO L129 PetriNetUnfolder]: 2/77 cut-off events. [2020-09-11 23:48:57,615 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-09-11 23:48:57,616 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. [2020-09-11 23:48:57,619 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 1822 [2020-09-11 23:48:57,621 INFO L182 etLargeBlockEncoding]: Variable Check. [2020-09-11 23:48:59,340 WARN L193 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 46 [2020-09-11 23:48:59,474 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 49 [2020-09-11 23:48:59,556 INFO L206 etLargeBlockEncoding]: Checked pairs total: 3093 [2020-09-11 23:48:59,557 INFO L214 etLargeBlockEncoding]: Total number of compositions: 65 [2020-09-11 23:48:59,562 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 38 places, 25 transitions, 70 flow [2020-09-11 23:48:59,610 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 706 states. [2020-09-11 23:48:59,612 INFO L276 IsEmpty]: Start isEmpty. Operand 706 states. [2020-09-11 23:48:59,624 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-09-11 23:48:59,625 INFO L414 BasicCegarLoop]: Found error trace [2020-09-11 23:48:59,626 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-11 23:48:59,626 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-11 23:48:59,633 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-11 23:48:59,634 INFO L82 PathProgramCache]: Analyzing trace with hash -2005095105, now seen corresponding path program 1 times [2020-09-11 23:48:59,656 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-11 23:48:59,657 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [749084534] [2020-09-11 23:48:59,657 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-11 23:48:59,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-11 23:48:59,916 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-11 23:48:59,917 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [749084534] [2020-09-11 23:48:59,918 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-11 23:48:59,918 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-09-11 23:48:59,919 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [891587930] [2020-09-11 23:48:59,920 INFO L216 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-09-11 23:48:59,924 INFO L271 McrAutomatonBuilder]: Started intersection. [2020-09-11 23:48:59,943 INFO L274 McrAutomatonBuilder]: Finished intersection with 11 states and 10 transitions. [2020-09-11 23:48:59,944 INFO L299 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-09-11 23:48:59,946 INFO L399 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-09-11 23:48:59,947 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-11 23:48:59,948 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-11 23:48:59,966 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-11 23:48:59,967 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-11 23:48:59,970 INFO L87 Difference]: Start difference. First operand 706 states. Second operand 3 states. [2020-09-11 23:49:00,024 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-11 23:49:00,025 INFO L93 Difference]: Finished difference Result 670 states and 2295 transitions. [2020-09-11 23:49:00,026 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-11 23:49:00,027 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10 [2020-09-11 23:49:00,028 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-11 23:49:00,055 INFO L225 Difference]: With dead ends: 670 [2020-09-11 23:49:00,055 INFO L226 Difference]: Without dead ends: 526 [2020-09-11 23:49:00,057 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 [2020-09-11 23:49:00,092 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 526 states. [2020-09-11 23:49:00,166 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 526 to 526. [2020-09-11 23:49:00,169 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 526 states. [2020-09-11 23:49:00,184 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 526 states to 526 states and 1743 transitions. [2020-09-11 23:49:00,189 INFO L78 Accepts]: Start accepts. Automaton has 526 states and 1743 transitions. Word has length 10 [2020-09-11 23:49:00,190 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-11 23:49:00,190 INFO L479 AbstractCegarLoop]: Abstraction has 526 states and 1743 transitions. [2020-09-11 23:49:00,191 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-11 23:49:00,191 INFO L276 IsEmpty]: Start isEmpty. Operand 526 states and 1743 transitions. [2020-09-11 23:49:00,194 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-09-11 23:49:00,195 INFO L414 BasicCegarLoop]: Found error trace [2020-09-11 23:49:00,196 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-11 23:49:00,196 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-11 23:49:00,197 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-11 23:49:00,197 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-11 23:49:00,197 INFO L82 PathProgramCache]: Analyzing trace with hash -2027540211, now seen corresponding path program 1 times [2020-09-11 23:49:00,198 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-11 23:49:00,198 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2049405527] [2020-09-11 23:49:00,198 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-11 23:49:00,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-11 23:49:00,324 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-11 23:49:00,325 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2049405527] [2020-09-11 23:49:00,325 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-11 23:49:00,325 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-09-11 23:49:00,326 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [2066005691] [2020-09-11 23:49:00,326 INFO L216 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-09-11 23:49:00,327 INFO L271 McrAutomatonBuilder]: Started intersection. [2020-09-11 23:49:00,330 INFO L274 McrAutomatonBuilder]: Finished intersection with 19 states and 25 transitions. [2020-09-11 23:49:00,330 INFO L299 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-09-11 23:49:00,397 INFO L399 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-09-11 23:49:00,399 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-11 23:49:00,400 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-11 23:49:00,400 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-11 23:49:00,400 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-11 23:49:00,400 INFO L87 Difference]: Start difference. First operand 526 states and 1743 transitions. Second operand 4 states. [2020-09-11 23:49:00,463 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-11 23:49:00,464 INFO L93 Difference]: Finished difference Result 724 states and 2331 transitions. [2020-09-11 23:49:00,464 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-09-11 23:49:00,464 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2020-09-11 23:49:00,465 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-11 23:49:00,470 INFO L225 Difference]: With dead ends: 724 [2020-09-11 23:49:00,470 INFO L226 Difference]: Without dead ends: 412 [2020-09-11 23:49:00,471 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 [2020-09-11 23:49:00,474 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 412 states. [2020-09-11 23:49:00,492 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 412 to 412. [2020-09-11 23:49:00,492 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 412 states. [2020-09-11 23:49:00,495 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 412 states to 412 states and 1323 transitions. [2020-09-11 23:49:00,496 INFO L78 Accepts]: Start accepts. Automaton has 412 states and 1323 transitions. Word has length 11 [2020-09-11 23:49:00,496 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-11 23:49:00,496 INFO L479 AbstractCegarLoop]: Abstraction has 412 states and 1323 transitions. [2020-09-11 23:49:00,496 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-11 23:49:00,497 INFO L276 IsEmpty]: Start isEmpty. Operand 412 states and 1323 transitions. [2020-09-11 23:49:00,498 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-09-11 23:49:00,499 INFO L414 BasicCegarLoop]: Found error trace [2020-09-11 23:49:00,499 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-11 23:49:00,499 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-11 23:49:00,500 INFO L427 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-11 23:49:00,500 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-11 23:49:00,500 INFO L82 PathProgramCache]: Analyzing trace with hash 1543893440, now seen corresponding path program 1 times [2020-09-11 23:49:00,501 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-11 23:49:00,501 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1964930328] [2020-09-11 23:49:00,501 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-11 23:49:00,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-11 23:49:00,633 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-11 23:49:00,634 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1964930328] [2020-09-11 23:49:00,634 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-11 23:49:00,634 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-09-11 23:49:00,634 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [859766683] [2020-09-11 23:49:00,635 INFO L216 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-09-11 23:49:00,637 INFO L271 McrAutomatonBuilder]: Started intersection. [2020-09-11 23:49:00,641 INFO L274 McrAutomatonBuilder]: Finished intersection with 15 states and 16 transitions. [2020-09-11 23:49:00,641 INFO L299 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-09-11 23:49:00,652 INFO L399 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-09-11 23:49:00,653 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-11 23:49:00,653 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-11 23:49:00,653 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-11 23:49:00,654 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-11 23:49:00,654 INFO L87 Difference]: Start difference. First operand 412 states and 1323 transitions. Second operand 3 states. [2020-09-11 23:49:00,663 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-11 23:49:00,664 INFO L93 Difference]: Finished difference Result 394 states and 1254 transitions. [2020-09-11 23:49:00,664 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-11 23:49:00,664 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 12 [2020-09-11 23:49:00,665 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-11 23:49:00,668 INFO L225 Difference]: With dead ends: 394 [2020-09-11 23:49:00,668 INFO L226 Difference]: Without dead ends: 394 [2020-09-11 23:49:00,669 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 [2020-09-11 23:49:00,671 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 394 states. [2020-09-11 23:49:00,681 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 394 to 394. [2020-09-11 23:49:00,681 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 394 states. [2020-09-11 23:49:00,684 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 394 states to 394 states and 1254 transitions. [2020-09-11 23:49:00,685 INFO L78 Accepts]: Start accepts. Automaton has 394 states and 1254 transitions. Word has length 12 [2020-09-11 23:49:00,685 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-11 23:49:00,685 INFO L479 AbstractCegarLoop]: Abstraction has 394 states and 1254 transitions. [2020-09-11 23:49:00,685 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-11 23:49:00,685 INFO L276 IsEmpty]: Start isEmpty. Operand 394 states and 1254 transitions. [2020-09-11 23:49:00,687 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-09-11 23:49:00,688 INFO L414 BasicCegarLoop]: Found error trace [2020-09-11 23:49:00,688 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-11 23:49:00,688 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-11 23:49:00,688 INFO L427 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-11 23:49:00,689 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-11 23:49:00,689 INFO L82 PathProgramCache]: Analyzing trace with hash 1381595750, now seen corresponding path program 1 times [2020-09-11 23:49:00,689 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-11 23:49:00,690 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2123117574] [2020-09-11 23:49:00,690 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-11 23:49:00,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-11 23:49:00,746 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-11 23:49:00,747 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2123117574] [2020-09-11 23:49:00,747 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-11 23:49:00,747 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-11 23:49:00,748 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [744772171] [2020-09-11 23:49:00,748 INFO L216 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-09-11 23:49:00,749 INFO L271 McrAutomatonBuilder]: Started intersection. [2020-09-11 23:49:00,753 INFO L274 McrAutomatonBuilder]: Finished intersection with 23 states and 31 transitions. [2020-09-11 23:49:00,753 INFO L299 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-09-11 23:49:00,780 INFO L399 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-09-11 23:49:00,781 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-11 23:49:00,781 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-11 23:49:00,781 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-11 23:49:00,781 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-11 23:49:00,782 INFO L87 Difference]: Start difference. First operand 394 states and 1254 transitions. Second operand 4 states. [2020-09-11 23:49:00,828 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-11 23:49:00,828 INFO L93 Difference]: Finished difference Result 652 states and 1957 transitions. [2020-09-11 23:49:00,829 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-11 23:49:00,829 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 13 [2020-09-11 23:49:00,829 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-11 23:49:00,832 INFO L225 Difference]: With dead ends: 652 [2020-09-11 23:49:00,836 INFO L226 Difference]: Without dead ends: 340 [2020-09-11 23:49:00,837 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-11 23:49:00,840 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 340 states. [2020-09-11 23:49:00,847 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 340 to 304. [2020-09-11 23:49:00,857 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 304 states. [2020-09-11 23:49:00,860 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 304 states to 304 states and 891 transitions. [2020-09-11 23:49:00,860 INFO L78 Accepts]: Start accepts. Automaton has 304 states and 891 transitions. Word has length 13 [2020-09-11 23:49:00,860 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-11 23:49:00,861 INFO L479 AbstractCegarLoop]: Abstraction has 304 states and 891 transitions. [2020-09-11 23:49:00,861 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-11 23:49:00,861 INFO L276 IsEmpty]: Start isEmpty. Operand 304 states and 891 transitions. [2020-09-11 23:49:00,862 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-09-11 23:49:00,863 INFO L414 BasicCegarLoop]: Found error trace [2020-09-11 23:49:00,863 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-11 23:49:00,863 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-11 23:49:00,863 INFO L427 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-11 23:49:00,863 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-11 23:49:00,864 INFO L82 PathProgramCache]: Analyzing trace with hash 1391724752, now seen corresponding path program 1 times [2020-09-11 23:49:00,864 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-11 23:49:00,864 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [315268205] [2020-09-11 23:49:00,864 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-11 23:49:00,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-11 23:49:00,965 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-11 23:49:00,965 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [315268205] [2020-09-11 23:49:00,966 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-11 23:49:00,966 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-09-11 23:49:00,966 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1400190727] [2020-09-11 23:49:00,966 INFO L216 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-09-11 23:49:00,968 INFO L271 McrAutomatonBuilder]: Started intersection. [2020-09-11 23:49:00,972 INFO L274 McrAutomatonBuilder]: Finished intersection with 23 states and 33 transitions. [2020-09-11 23:49:00,972 INFO L299 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-09-11 23:49:01,042 INFO L399 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-09-11 23:49:01,043 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-11 23:49:01,043 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-11 23:49:01,043 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-11 23:49:01,043 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-11 23:49:01,044 INFO L87 Difference]: Start difference. First operand 304 states and 891 transitions. Second operand 4 states. [2020-09-11 23:49:01,068 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-11 23:49:01,068 INFO L93 Difference]: Finished difference Result 406 states and 1128 transitions. [2020-09-11 23:49:01,068 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-09-11 23:49:01,069 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 13 [2020-09-11 23:49:01,069 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-11 23:49:01,071 INFO L225 Difference]: With dead ends: 406 [2020-09-11 23:49:01,072 INFO L226 Difference]: Without dead ends: 226 [2020-09-11 23:49:01,072 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 [2020-09-11 23:49:01,074 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 226 states. [2020-09-11 23:49:01,078 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 226 to 226. [2020-09-11 23:49:01,078 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 226 states. [2020-09-11 23:49:01,080 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 226 states to 226 states and 619 transitions. [2020-09-11 23:49:01,080 INFO L78 Accepts]: Start accepts. Automaton has 226 states and 619 transitions. Word has length 13 [2020-09-11 23:49:01,080 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-11 23:49:01,080 INFO L479 AbstractCegarLoop]: Abstraction has 226 states and 619 transitions. [2020-09-11 23:49:01,080 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-11 23:49:01,081 INFO L276 IsEmpty]: Start isEmpty. Operand 226 states and 619 transitions. [2020-09-11 23:49:01,081 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-09-11 23:49:01,081 INFO L414 BasicCegarLoop]: Found error trace [2020-09-11 23:49:01,082 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-11 23:49:01,082 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-11 23:49:01,082 INFO L427 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-11 23:49:01,082 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-11 23:49:01,082 INFO L82 PathProgramCache]: Analyzing trace with hash 1162350155, now seen corresponding path program 1 times [2020-09-11 23:49:01,083 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-11 23:49:01,083 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1856801327] [2020-09-11 23:49:01,083 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-11 23:49:01,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-11 23:49:01,179 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-11 23:49:01,179 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1856801327] [2020-09-11 23:49:01,180 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-11 23:49:01,180 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-09-11 23:49:01,180 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1613986081] [2020-09-11 23:49:01,180 INFO L216 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-09-11 23:49:01,182 INFO L271 McrAutomatonBuilder]: Started intersection. [2020-09-11 23:49:01,187 INFO L274 McrAutomatonBuilder]: Finished intersection with 33 states and 54 transitions. [2020-09-11 23:49:01,188 INFO L299 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-09-11 23:49:01,235 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-09-11 23:49:01,259 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-09-11 23:49:01,272 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-09-11 23:49:01,286 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-09-11 23:49:01,300 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-09-11 23:49:01,327 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-09-11 23:49:01,362 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-09-11 23:49:01,383 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-09-11 23:49:01,421 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-09-11 23:49:01,437 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-09-11 23:49:01,448 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-09-11 23:49:01,459 INFO L399 McrAutomatonBuilder]: Construction finished. MCR generated 1 new interpolants: [8106#(not (= 4 ~__unbuffered_cnt~0))] [2020-09-11 23:49:01,459 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-11 23:49:01,459 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-11 23:49:01,459 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-11 23:49:01,460 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-11 23:49:01,460 INFO L87 Difference]: Start difference. First operand 226 states and 619 transitions. Second operand 5 states. [2020-09-11 23:49:01,556 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-11 23:49:01,556 INFO L93 Difference]: Finished difference Result 243 states and 599 transitions. [2020-09-11 23:49:01,557 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-11 23:49:01,557 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 14 [2020-09-11 23:49:01,557 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-11 23:49:01,559 INFO L225 Difference]: With dead ends: 243 [2020-09-11 23:49:01,559 INFO L226 Difference]: Without dead ends: 162 [2020-09-11 23:49:01,559 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 20 SyntacticMatches, 2 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-09-11 23:49:01,560 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 162 states. [2020-09-11 23:49:01,563 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 162 to 162. [2020-09-11 23:49:01,563 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 162 states. [2020-09-11 23:49:01,564 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 162 states to 162 states and 369 transitions. [2020-09-11 23:49:01,565 INFO L78 Accepts]: Start accepts. Automaton has 162 states and 369 transitions. Word has length 14 [2020-09-11 23:49:01,565 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-11 23:49:01,565 INFO L479 AbstractCegarLoop]: Abstraction has 162 states and 369 transitions. [2020-09-11 23:49:01,565 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-11 23:49:01,565 INFO L276 IsEmpty]: Start isEmpty. Operand 162 states and 369 transitions. [2020-09-11 23:49:01,566 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-09-11 23:49:01,566 INFO L414 BasicCegarLoop]: Found error trace [2020-09-11 23:49:01,566 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-11 23:49:01,566 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-11 23:49:01,567 INFO L427 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-11 23:49:01,567 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-11 23:49:01,567 INFO L82 PathProgramCache]: Analyzing trace with hash -469082430, now seen corresponding path program 1 times [2020-09-11 23:49:01,567 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-11 23:49:01,568 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1581385412] [2020-09-11 23:49:01,568 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-11 23:49:01,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-11 23:49:01,662 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-11 23:49:01,662 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1581385412] [2020-09-11 23:49:01,663 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-11 23:49:01,663 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-11 23:49:01,663 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [216442816] [2020-09-11 23:49:01,663 INFO L216 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-09-11 23:49:01,665 INFO L271 McrAutomatonBuilder]: Started intersection. [2020-09-11 23:49:01,671 INFO L274 McrAutomatonBuilder]: Finished intersection with 38 states and 62 transitions. [2020-09-11 23:49:01,672 INFO L299 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-09-11 23:49:01,685 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-09-11 23:49:01,701 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-09-11 23:49:01,720 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-09-11 23:49:01,814 INFO L399 McrAutomatonBuilder]: Construction finished. MCR generated 1 new interpolants: [8684#(<= ~__unbuffered_cnt~0 0)] [2020-09-11 23:49:01,814 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-11 23:49:01,814 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-11 23:49:01,815 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-11 23:49:01,815 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-09-11 23:49:01,815 INFO L87 Difference]: Start difference. First operand 162 states and 369 transitions. Second operand 7 states. [2020-09-11 23:49:01,899 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-11 23:49:01,899 INFO L93 Difference]: Finished difference Result 158 states and 337 transitions. [2020-09-11 23:49:01,900 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-11 23:49:01,900 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 16 [2020-09-11 23:49:01,900 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-11 23:49:01,901 INFO L225 Difference]: With dead ends: 158 [2020-09-11 23:49:01,901 INFO L226 Difference]: Without dead ends: 125 [2020-09-11 23:49:01,902 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 20 SyntacticMatches, 6 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2020-09-11 23:49:01,902 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 125 states. [2020-09-11 23:49:01,905 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 125 to 125. [2020-09-11 23:49:01,905 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 125 states. [2020-09-11 23:49:01,905 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125 states to 125 states and 265 transitions. [2020-09-11 23:49:01,906 INFO L78 Accepts]: Start accepts. Automaton has 125 states and 265 transitions. Word has length 16 [2020-09-11 23:49:01,906 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-11 23:49:01,906 INFO L479 AbstractCegarLoop]: Abstraction has 125 states and 265 transitions. [2020-09-11 23:49:01,906 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-11 23:49:01,906 INFO L276 IsEmpty]: Start isEmpty. Operand 125 states and 265 transitions. [2020-09-11 23:49:01,907 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-09-11 23:49:01,907 INFO L414 BasicCegarLoop]: Found error trace [2020-09-11 23:49:01,907 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-11 23:49:01,908 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-09-11 23:49:01,908 INFO L427 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-11 23:49:01,908 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-11 23:49:01,908 INFO L82 PathProgramCache]: Analyzing trace with hash 483879941, now seen corresponding path program 1 times [2020-09-11 23:49:01,909 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-11 23:49:01,909 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1279835007] [2020-09-11 23:49:01,909 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-11 23:49:01,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-11 23:49:02,011 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-11 23:49:02,012 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1279835007] [2020-09-11 23:49:02,012 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-11 23:49:02,012 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-11 23:49:02,013 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [262347722] [2020-09-11 23:49:02,013 INFO L216 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-09-11 23:49:02,015 INFO L271 McrAutomatonBuilder]: Started intersection. [2020-09-11 23:49:02,022 INFO L274 McrAutomatonBuilder]: Finished intersection with 40 states and 58 transitions. [2020-09-11 23:49:02,022 INFO L299 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-09-11 23:49:02,028 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-09-11 23:49:02,081 INFO L399 McrAutomatonBuilder]: Construction finished. MCR generated 1 new interpolants: [9102#(<= ~__unbuffered_cnt~0 0)] [2020-09-11 23:49:02,081 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-11 23:49:02,081 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-11 23:49:02,082 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-11 23:49:02,082 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2020-09-11 23:49:02,082 INFO L87 Difference]: Start difference. First operand 125 states and 265 transitions. Second operand 8 states. [2020-09-11 23:49:02,155 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-11 23:49:02,156 INFO L93 Difference]: Finished difference Result 120 states and 253 transitions. [2020-09-11 23:49:02,156 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-09-11 23:49:02,156 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 18 [2020-09-11 23:49:02,157 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-11 23:49:02,157 INFO L225 Difference]: With dead ends: 120 [2020-09-11 23:49:02,157 INFO L226 Difference]: Without dead ends: 71 [2020-09-11 23:49:02,158 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 22 SyntacticMatches, 3 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-09-11 23:49:02,158 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71 states. [2020-09-11 23:49:02,160 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71 to 71. [2020-09-11 23:49:02,160 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 71 states. [2020-09-11 23:49:02,160 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 71 states and 143 transitions. [2020-09-11 23:49:02,161 INFO L78 Accepts]: Start accepts. Automaton has 71 states and 143 transitions. Word has length 18 [2020-09-11 23:49:02,161 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-11 23:49:02,161 INFO L479 AbstractCegarLoop]: Abstraction has 71 states and 143 transitions. [2020-09-11 23:49:02,161 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-11 23:49:02,161 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 143 transitions. [2020-09-11 23:49:02,162 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2020-09-11 23:49:02,162 INFO L414 BasicCegarLoop]: Found error trace [2020-09-11 23:49:02,162 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] [2020-09-11 23:49:02,162 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-09-11 23:49:02,162 INFO L427 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-11 23:49:02,163 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-11 23:49:02,163 INFO L82 PathProgramCache]: Analyzing trace with hash 1087350585, now seen corresponding path program 1 times [2020-09-11 23:49:02,163 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-11 23:49:02,163 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1872646067] [2020-09-11 23:49:02,163 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-11 23:49:02,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-11 23:49:02,236 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-11 23:49:02,237 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1872646067] [2020-09-11 23:49:02,237 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-11 23:49:02,237 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-11 23:49:02,238 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1803585081] [2020-09-11 23:49:02,238 INFO L216 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-09-11 23:49:02,241 INFO L271 McrAutomatonBuilder]: Started intersection. [2020-09-11 23:49:02,248 INFO L274 McrAutomatonBuilder]: Finished intersection with 44 states and 63 transitions. [2020-09-11 23:49:02,249 INFO L299 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-09-11 23:49:02,286 INFO L399 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-09-11 23:49:02,286 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-11 23:49:02,287 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-11 23:49:02,287 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-11 23:49:02,287 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-11 23:49:02,287 INFO L87 Difference]: Start difference. First operand 71 states and 143 transitions. Second operand 4 states. [2020-09-11 23:49:02,302 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-11 23:49:02,302 INFO L93 Difference]: Finished difference Result 70 states and 142 transitions. [2020-09-11 23:49:02,302 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-09-11 23:49:02,302 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 20 [2020-09-11 23:49:02,303 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-11 23:49:02,303 INFO L225 Difference]: With dead ends: 70 [2020-09-11 23:49:02,303 INFO L226 Difference]: Without dead ends: 0 [2020-09-11 23:49:02,303 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-11 23:49:02,304 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-09-11 23:49:02,304 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-09-11 23:49:02,304 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-09-11 23:49:02,304 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-09-11 23:49:02,304 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 20 [2020-09-11 23:49:02,305 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-11 23:49:02,305 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-09-11 23:49:02,305 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-11 23:49:02,305 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-09-11 23:49:02,305 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-09-11 23:49:02,306 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-09-11 23:49:02,310 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.09 11:49:02 BasicIcfg [2020-09-11 23:49:02,310 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-11 23:49:02,313 INFO L168 Benchmark]: Toolchain (without parser) took 6383.57 ms. Allocated memory was 147.8 MB in the beginning and 281.5 MB in the end (delta: 133.7 MB). Free memory was 101.0 MB in the beginning and 112.9 MB in the end (delta: -12.0 MB). Peak memory consumption was 121.7 MB. Max. memory is 7.1 GB. [2020-09-11 23:49:02,314 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 147.8 MB. Free memory was 121.1 MB in the beginning and 120.9 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. [2020-09-11 23:49:02,315 INFO L168 Benchmark]: CACSL2BoogieTranslator took 812.97 ms. Allocated memory was 147.8 MB in the beginning and 205.0 MB in the end (delta: 57.1 MB). Free memory was 100.3 MB in the beginning and 161.1 MB in the end (delta: -60.9 MB). Peak memory consumption was 20.9 MB. Max. memory is 7.1 GB. [2020-09-11 23:49:02,316 INFO L168 Benchmark]: Boogie Procedure Inliner took 57.49 ms. Allocated memory is still 205.0 MB. Free memory was 161.1 MB in the beginning and 159.2 MB in the end (delta: 1.9 MB). Peak memory consumption was 1.9 MB. Max. memory is 7.1 GB. [2020-09-11 23:49:02,322 INFO L168 Benchmark]: Boogie Preprocessor took 33.24 ms. Allocated memory is still 205.0 MB. Free memory was 159.2 MB in the beginning and 157.9 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. [2020-09-11 23:49:02,323 INFO L168 Benchmark]: RCFGBuilder took 501.19 ms. Allocated memory is still 205.0 MB. Free memory was 157.2 MB in the beginning and 133.5 MB in the end (delta: 23.7 MB). Peak memory consumption was 23.7 MB. Max. memory is 7.1 GB. [2020-09-11 23:49:02,325 INFO L168 Benchmark]: TraceAbstraction took 4969.22 ms. Allocated memory was 205.0 MB in the beginning and 281.5 MB in the end (delta: 76.5 MB). Free memory was 132.9 MB in the beginning and 112.9 MB in the end (delta: 20.0 MB). Peak memory consumption was 96.5 MB. Max. memory is 7.1 GB. [2020-09-11 23:49:02,336 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 147.8 MB. Free memory was 121.1 MB in the beginning and 120.9 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 812.97 ms. Allocated memory was 147.8 MB in the beginning and 205.0 MB in the end (delta: 57.1 MB). Free memory was 100.3 MB in the beginning and 161.1 MB in the end (delta: -60.9 MB). Peak memory consumption was 20.9 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 57.49 ms. Allocated memory is still 205.0 MB. Free memory was 161.1 MB in the beginning and 159.2 MB in the end (delta: 1.9 MB). Peak memory consumption was 1.9 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 33.24 ms. Allocated memory is still 205.0 MB. Free memory was 159.2 MB in the beginning and 157.9 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 501.19 ms. Allocated memory is still 205.0 MB. Free memory was 157.2 MB in the beginning and 133.5 MB in the end (delta: 23.7 MB). Peak memory consumption was 23.7 MB. Max. memory is 7.1 GB. * TraceAbstraction took 4969.22 ms. Allocated memory was 205.0 MB in the beginning and 281.5 MB in the end (delta: 76.5 MB). Free memory was 132.9 MB in the beginning and 112.9 MB in the end (delta: 20.0 MB). Peak memory consumption was 96.5 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: 4.8s, OverallIterations: 9, TraceHistogramMax: 1, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.1s, HoareTripleCheckerStatistics: 198 SDtfs, 198 SDslu, 315 SDs, 0 SdLazy, 169 SolverSat, 48 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 167 GetRequests, 124 SyntacticMatches, 11 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 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, 4686 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...