/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.epf -i ../../../trunk/examples/svcomp/pthread-wmm/safe004_tso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c7e336b [2020-10-05 23:38:23,399 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-05 23:38:23,401 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-05 23:38:23,429 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-05 23:38:23,430 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-05 23:38:23,432 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-05 23:38:23,437 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-05 23:38:23,439 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-05 23:38:23,443 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-05 23:38:23,444 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-05 23:38:23,447 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-05 23:38:23,448 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-05 23:38:23,449 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-05 23:38:23,450 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-05 23:38:23,451 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-05 23:38:23,455 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-05 23:38:23,456 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-05 23:38:23,459 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-05 23:38:23,463 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-05 23:38:23,467 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-05 23:38:23,471 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-05 23:38:23,473 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-05 23:38:23,475 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-05 23:38:23,476 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-05 23:38:23,482 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-10-05 23:38:23,488 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-05 23:38:23,489 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-05 23:38:23,490 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-05 23:38:23,491 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-05 23:38:23,492 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-05 23:38:23,492 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-05 23:38:23,493 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-05 23:38:23,493 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-05 23:38:23,493 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-05 23:38:23,504 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-05 23:38:23,505 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-05 23:38:23,511 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.epf [2020-10-05 23:38:23,550 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-05 23:38:23,550 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-05 23:38:23,551 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-05 23:38:23,552 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-05 23:38:23,552 INFO L138 SettingsManager]: * Use SBE=true [2020-10-05 23:38:23,552 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-05 23:38:23,552 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-05 23:38:23,552 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-05 23:38:23,553 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-05 23:38:23,553 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-05 23:38:23,553 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-05 23:38:23,553 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-05 23:38:23,553 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-05 23:38:23,554 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-05 23:38:23,554 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-05 23:38:23,554 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-05 23:38:23,554 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-05 23:38:23,554 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-05 23:38:23,555 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-05 23:38:23,555 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-05 23:38:23,555 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-05 23:38:23,555 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-05 23:38:23,555 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-05 23:38:23,556 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_NestedInterpolation [2020-10-05 23:38:23,556 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-05 23:38:23,556 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-05 23:38:23,556 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-05 23:38:23,556 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=VARIABLE_BASED_MOVER_CHECK [2020-10-05 23:38:23,557 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-05 23:38:23,917 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-05 23:38:23,934 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-05 23:38:23,939 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-05 23:38:23,941 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-05 23:38:23,942 INFO L275 PluginConnector]: CDTParser initialized [2020-10-05 23:38:23,942 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe004_tso.opt.i [2020-10-05 23:38:24,016 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/714809a3a/1493fad2008c4273a74c298732726104/FLAG64b3d0d8b [2020-10-05 23:38:24,577 INFO L306 CDTParser]: Found 1 translation units. [2020-10-05 23:38:24,578 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe004_tso.opt.i [2020-10-05 23:38:24,609 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/714809a3a/1493fad2008c4273a74c298732726104/FLAG64b3d0d8b [2020-10-05 23:38:24,898 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/714809a3a/1493fad2008c4273a74c298732726104 [2020-10-05 23:38:24,907 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-05 23:38:24,909 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-10-05 23:38:24,910 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-05 23:38:24,911 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-05 23:38:24,914 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-05 23:38:24,917 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.10 11:38:24" (1/1) ... [2020-10-05 23:38:24,920 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@50e1c5a4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.10 11:38:24, skipping insertion in model container [2020-10-05 23:38:24,921 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.10 11:38:24" (1/1) ... [2020-10-05 23:38:24,934 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-05 23:38:24,981 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-05 23:38:25,537 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-05 23:38:25,554 INFO L203 MainTranslator]: Completed pre-run [2020-10-05 23:38:25,631 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-05 23:38:25,719 INFO L208 MainTranslator]: Completed translation [2020-10-05 23:38:25,721 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.10 11:38:25 WrapperNode [2020-10-05 23:38:25,722 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-05 23:38:25,724 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-05 23:38:25,724 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-05 23:38:25,724 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-05 23:38:25,731 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.10 11:38:25" (1/1) ... [2020-10-05 23:38:25,751 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.10 11:38:25" (1/1) ... [2020-10-05 23:38:25,772 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-05 23:38:25,773 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-05 23:38:25,773 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-05 23:38:25,773 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-05 23:38:25,781 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.10 11:38:25" (1/1) ... [2020-10-05 23:38:25,781 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.10 11:38:25" (1/1) ... [2020-10-05 23:38:25,784 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.10 11:38:25" (1/1) ... [2020-10-05 23:38:25,785 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.10 11:38:25" (1/1) ... [2020-10-05 23:38:25,792 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.10 11:38:25" (1/1) ... [2020-10-05 23:38:25,794 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.10 11:38:25" (1/1) ... [2020-10-05 23:38:25,797 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.10 11:38:25" (1/1) ... [2020-10-05 23:38:25,801 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-05 23:38:25,802 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-05 23:38:25,802 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-05 23:38:25,802 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-05 23:38:25,803 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.10 11:38:25" (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 [2020-10-05 23:38:25,885 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-05 23:38:25,886 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-10-05 23:38:25,886 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-05 23:38:25,886 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-05 23:38:25,886 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-10-05 23:38:25,887 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-10-05 23:38:25,888 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-10-05 23:38:25,888 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-10-05 23:38:25,889 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-10-05 23:38:25,890 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-10-05 23:38:25,892 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-10-05 23:38:25,893 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-05 23:38:25,893 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-05 23:38:25,895 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-10-05 23:38:26,306 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-05 23:38:26,306 INFO L298 CfgBuilder]: Removed 8 assume(true) statements. [2020-10-05 23:38:26,308 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.10 11:38:26 BoogieIcfgContainer [2020-10-05 23:38:26,309 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-05 23:38:26,310 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-05 23:38:26,310 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-05 23:38:26,313 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-05 23:38:26,314 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 05.10 11:38:24" (1/3) ... [2020-10-05 23:38:26,315 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@77942f7f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.10 11:38:26, skipping insertion in model container [2020-10-05 23:38:26,315 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.10 11:38:25" (2/3) ... [2020-10-05 23:38:26,315 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@77942f7f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.10 11:38:26, skipping insertion in model container [2020-10-05 23:38:26,316 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.10 11:38:26" (3/3) ... [2020-10-05 23:38:26,317 INFO L109 eAbstractionObserver]: Analyzing ICFG safe004_tso.opt.i [2020-10-05 23:38:26,329 WARN L146 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-10-05 23:38:26,330 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-05 23:38:26,338 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-05 23:38:26,339 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-10-05 23:38:26,369 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:38:26,369 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:38:26,370 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:38:26,370 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:38:26,370 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:38:26,371 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:38:26,371 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:38:26,371 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:38:26,372 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:38:26,372 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:38:26,372 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:38:26,373 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:38:26,373 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:38:26,373 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:38:26,374 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:38:26,374 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:38:26,374 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:38:26,374 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:38:26,378 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:38:26,379 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:38:26,379 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:38:26,379 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:38:26,386 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:38:26,386 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:38:26,387 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:38:26,387 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:38:26,392 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:38:26,392 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:38:26,392 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:38:26,393 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:38:26,409 INFO L251 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-10-05 23:38:26,431 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-05 23:38:26,431 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-05 23:38:26,432 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-05 23:38:26,432 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-05 23:38:26,432 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-05 23:38:26,432 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-05 23:38:26,432 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-05 23:38:26,432 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-05 23:38:26,450 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 77 places, 69 transitions, 153 flow [2020-10-05 23:38:26,452 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 77 places, 69 transitions, 153 flow [2020-10-05 23:38:26,504 INFO L129 PetriNetUnfolder]: 2/66 cut-off events. [2020-10-05 23:38:26,504 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-10-05 23:38:26,510 INFO L80 FinitePrefix]: Finished finitePrefix Result has 76 conditions, 66 events. 2/66 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 54 event pairs, 0 based on Foata normal form. 0/63 useless extension candidates. Maximal degree in co-relation 55. Up to 2 conditions per place. [2020-10-05 23:38:26,513 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 77 places, 69 transitions, 153 flow [2020-10-05 23:38:26,534 INFO L129 PetriNetUnfolder]: 2/66 cut-off events. [2020-10-05 23:38:26,535 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-10-05 23:38:26,536 INFO L80 FinitePrefix]: Finished finitePrefix Result has 76 conditions, 66 events. 2/66 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 54 event pairs, 0 based on Foata normal form. 0/63 useless extension candidates. Maximal degree in co-relation 55. Up to 2 conditions per place. [2020-10-05 23:38:26,538 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 1260 [2020-10-05 23:38:26,539 INFO L182 etLargeBlockEncoding]: Variable Check. [2020-10-05 23:38:27,879 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 47 [2020-10-05 23:38:28,035 INFO L206 etLargeBlockEncoding]: Checked pairs total: 2483 [2020-10-05 23:38:28,035 INFO L214 etLargeBlockEncoding]: Total number of compositions: 57 [2020-10-05 23:38:28,039 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 31 places, 22 transitions, 59 flow [2020-10-05 23:38:28,066 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 298 states. [2020-10-05 23:38:28,068 INFO L276 IsEmpty]: Start isEmpty. Operand 298 states. [2020-10-05 23:38:28,076 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-10-05 23:38:28,076 INFO L414 BasicCegarLoop]: Found error trace [2020-10-05 23:38:28,077 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-10-05 23:38:28,077 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-05 23:38:28,083 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-05 23:38:28,084 INFO L82 PathProgramCache]: Analyzing trace with hash -245765301, now seen corresponding path program 1 times [2020-10-05 23:38:28,094 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-05 23:38:28,094 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [537493280] [2020-10-05 23:38:28,095 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-05 23:38:28,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-05 23:38:28,319 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-05 23:38:28,320 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [537493280] [2020-10-05 23:38:28,321 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-05 23:38:28,321 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-10-05 23:38:28,322 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1198180258] [2020-10-05 23:38:28,327 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-05 23:38:28,328 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-05 23:38:28,343 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-05 23:38:28,344 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-05 23:38:28,346 INFO L87 Difference]: Start difference. First operand 298 states. Second operand 3 states. [2020-10-05 23:38:28,397 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-05 23:38:28,397 INFO L93 Difference]: Finished difference Result 290 states and 834 transitions. [2020-10-05 23:38:28,400 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-05 23:38:28,402 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2020-10-05 23:38:28,402 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-05 23:38:28,427 INFO L225 Difference]: With dead ends: 290 [2020-10-05 23:38:28,427 INFO L226 Difference]: Without dead ends: 226 [2020-10-05 23:38:28,429 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 [2020-10-05 23:38:28,460 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 226 states. [2020-10-05 23:38:28,511 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 226 to 226. [2020-10-05 23:38:28,513 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 226 states. [2020-10-05 23:38:28,522 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 226 states to 226 states and 626 transitions. [2020-10-05 23:38:28,523 INFO L78 Accepts]: Start accepts. Automaton has 226 states and 626 transitions. Word has length 8 [2020-10-05 23:38:28,527 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-05 23:38:28,527 INFO L479 AbstractCegarLoop]: Abstraction has 226 states and 626 transitions. [2020-10-05 23:38:28,528 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-05 23:38:28,528 INFO L276 IsEmpty]: Start isEmpty. Operand 226 states and 626 transitions. [2020-10-05 23:38:28,530 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-10-05 23:38:28,530 INFO L414 BasicCegarLoop]: Found error trace [2020-10-05 23:38:28,530 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-05 23:38:28,531 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-05 23:38:28,531 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-05 23:38:28,531 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-05 23:38:28,531 INFO L82 PathProgramCache]: Analyzing trace with hash 956609449, now seen corresponding path program 1 times [2020-10-05 23:38:28,532 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-05 23:38:28,532 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [772717744] [2020-10-05 23:38:28,533 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-05 23:38:28,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-05 23:38:28,658 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-05 23:38:28,658 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [772717744] [2020-10-05 23:38:28,659 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-05 23:38:28,659 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-10-05 23:38:28,659 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1690394553] [2020-10-05 23:38:28,661 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-05 23:38:28,661 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-05 23:38:28,661 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-05 23:38:28,661 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-05 23:38:28,662 INFO L87 Difference]: Start difference. First operand 226 states and 626 transitions. Second operand 3 states. [2020-10-05 23:38:28,669 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-05 23:38:28,669 INFO L93 Difference]: Finished difference Result 212 states and 578 transitions. [2020-10-05 23:38:28,670 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-05 23:38:28,670 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 9 [2020-10-05 23:38:28,670 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-05 23:38:28,672 INFO L225 Difference]: With dead ends: 212 [2020-10-05 23:38:28,672 INFO L226 Difference]: Without dead ends: 212 [2020-10-05 23:38:28,673 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 [2020-10-05 23:38:28,675 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 212 states. [2020-10-05 23:38:28,685 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 212 to 212. [2020-10-05 23:38:28,685 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 212 states. [2020-10-05 23:38:28,686 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 212 states to 212 states and 578 transitions. [2020-10-05 23:38:28,686 INFO L78 Accepts]: Start accepts. Automaton has 212 states and 578 transitions. Word has length 9 [2020-10-05 23:38:28,687 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-05 23:38:28,687 INFO L479 AbstractCegarLoop]: Abstraction has 212 states and 578 transitions. [2020-10-05 23:38:28,687 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-05 23:38:28,687 INFO L276 IsEmpty]: Start isEmpty. Operand 212 states and 578 transitions. [2020-10-05 23:38:28,688 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-10-05 23:38:28,689 INFO L414 BasicCegarLoop]: Found error trace [2020-10-05 23:38:28,689 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-05 23:38:28,689 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-05 23:38:28,689 INFO L427 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-05 23:38:28,689 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-05 23:38:28,690 INFO L82 PathProgramCache]: Analyzing trace with hash -409878926, now seen corresponding path program 1 times [2020-10-05 23:38:28,690 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-05 23:38:28,690 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [776064983] [2020-10-05 23:38:28,690 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-05 23:38:28,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-05 23:38:28,738 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-05 23:38:28,739 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [776064983] [2020-10-05 23:38:28,739 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-05 23:38:28,739 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-05 23:38:28,740 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [630574031] [2020-10-05 23:38:28,740 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-05 23:38:28,740 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-05 23:38:28,740 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-05 23:38:28,741 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-05 23:38:28,741 INFO L87 Difference]: Start difference. First operand 212 states and 578 transitions. Second operand 4 states. [2020-10-05 23:38:28,771 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-05 23:38:28,771 INFO L93 Difference]: Finished difference Result 293 states and 785 transitions. [2020-10-05 23:38:28,771 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-05 23:38:28,772 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 10 [2020-10-05 23:38:28,772 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-05 23:38:28,774 INFO L225 Difference]: With dead ends: 293 [2020-10-05 23:38:28,774 INFO L226 Difference]: Without dead ends: 197 [2020-10-05 23:38:28,774 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-05 23:38:28,776 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 197 states. [2020-10-05 23:38:28,783 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 197 to 197. [2020-10-05 23:38:28,783 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 197 states. [2020-10-05 23:38:28,784 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 197 states to 197 states and 525 transitions. [2020-10-05 23:38:28,784 INFO L78 Accepts]: Start accepts. Automaton has 197 states and 525 transitions. Word has length 10 [2020-10-05 23:38:28,784 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-05 23:38:28,785 INFO L479 AbstractCegarLoop]: Abstraction has 197 states and 525 transitions. [2020-10-05 23:38:28,785 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-05 23:38:28,785 INFO L276 IsEmpty]: Start isEmpty. Operand 197 states and 525 transitions. [2020-10-05 23:38:28,786 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-10-05 23:38:28,786 INFO L414 BasicCegarLoop]: Found error trace [2020-10-05 23:38:28,786 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-05 23:38:28,787 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-05 23:38:28,787 INFO L427 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-05 23:38:28,787 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-05 23:38:28,787 INFO L82 PathProgramCache]: Analyzing trace with hash 1131193343, now seen corresponding path program 1 times [2020-10-05 23:38:28,788 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-05 23:38:28,788 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [866690774] [2020-10-05 23:38:28,788 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-05 23:38:28,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-05 23:38:28,820 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-05 23:38:28,820 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [866690774] [2020-10-05 23:38:28,820 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-05 23:38:28,821 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-05 23:38:28,821 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2082518649] [2020-10-05 23:38:28,821 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-05 23:38:28,822 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-05 23:38:28,822 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-05 23:38:28,822 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-05 23:38:28,822 INFO L87 Difference]: Start difference. First operand 197 states and 525 transitions. Second operand 3 states. [2020-10-05 23:38:28,833 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-05 23:38:28,833 INFO L93 Difference]: Finished difference Result 269 states and 681 transitions. [2020-10-05 23:38:28,834 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-05 23:38:28,834 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 11 [2020-10-05 23:38:28,834 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-05 23:38:28,836 INFO L225 Difference]: With dead ends: 269 [2020-10-05 23:38:28,836 INFO L226 Difference]: Without dead ends: 209 [2020-10-05 23:38:28,837 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-05 23:38:28,838 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 209 states. [2020-10-05 23:38:28,843 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 209 to 191. [2020-10-05 23:38:28,843 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 191 states. [2020-10-05 23:38:28,844 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 191 states to 191 states and 476 transitions. [2020-10-05 23:38:28,845 INFO L78 Accepts]: Start accepts. Automaton has 191 states and 476 transitions. Word has length 11 [2020-10-05 23:38:28,845 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-05 23:38:28,845 INFO L479 AbstractCegarLoop]: Abstraction has 191 states and 476 transitions. [2020-10-05 23:38:28,845 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-05 23:38:28,845 INFO L276 IsEmpty]: Start isEmpty. Operand 191 states and 476 transitions. [2020-10-05 23:38:28,846 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-10-05 23:38:28,847 INFO L414 BasicCegarLoop]: Found error trace [2020-10-05 23:38:28,847 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-05 23:38:28,847 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-05 23:38:28,847 INFO L427 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-05 23:38:28,847 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-05 23:38:28,848 INFO L82 PathProgramCache]: Analyzing trace with hash 1251156259, now seen corresponding path program 1 times [2020-10-05 23:38:28,848 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-05 23:38:28,848 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [295437584] [2020-10-05 23:38:28,848 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-05 23:38:28,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-05 23:38:28,888 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-05 23:38:28,888 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [295437584] [2020-10-05 23:38:28,889 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-05 23:38:28,889 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-05 23:38:28,891 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1922724506] [2020-10-05 23:38:28,891 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-05 23:38:28,892 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-05 23:38:28,892 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-05 23:38:28,892 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-05 23:38:28,892 INFO L87 Difference]: Start difference. First operand 191 states and 476 transitions. Second operand 4 states. [2020-10-05 23:38:28,927 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-05 23:38:28,927 INFO L93 Difference]: Finished difference Result 250 states and 578 transitions. [2020-10-05 23:38:28,928 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-05 23:38:28,928 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2020-10-05 23:38:28,928 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-05 23:38:28,929 INFO L225 Difference]: With dead ends: 250 [2020-10-05 23:38:28,930 INFO L226 Difference]: Without dead ends: 158 [2020-10-05 23:38:28,930 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-05 23:38:28,931 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 158 states. [2020-10-05 23:38:28,935 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 158 to 146. [2020-10-05 23:38:28,935 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 146 states. [2020-10-05 23:38:28,936 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 146 states to 146 states and 330 transitions. [2020-10-05 23:38:28,936 INFO L78 Accepts]: Start accepts. Automaton has 146 states and 330 transitions. Word has length 11 [2020-10-05 23:38:28,936 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-05 23:38:28,936 INFO L479 AbstractCegarLoop]: Abstraction has 146 states and 330 transitions. [2020-10-05 23:38:28,936 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-05 23:38:28,937 INFO L276 IsEmpty]: Start isEmpty. Operand 146 states and 330 transitions. [2020-10-05 23:38:28,937 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-10-05 23:38:28,937 INFO L414 BasicCegarLoop]: Found error trace [2020-10-05 23:38:28,937 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-05 23:38:28,938 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-05 23:38:28,938 INFO L427 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-05 23:38:28,938 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-05 23:38:28,938 INFO L82 PathProgramCache]: Analyzing trace with hash -1304596236, now seen corresponding path program 1 times [2020-10-05 23:38:28,939 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-05 23:38:28,939 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [650355924] [2020-10-05 23:38:28,939 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-05 23:38:28,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-05 23:38:28,966 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-05 23:38:28,967 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [650355924] [2020-10-05 23:38:28,967 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-05 23:38:28,967 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-10-05 23:38:28,968 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [670669092] [2020-10-05 23:38:28,968 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-05 23:38:28,968 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-05 23:38:28,968 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-05 23:38:28,969 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-05 23:38:28,969 INFO L87 Difference]: Start difference. First operand 146 states and 330 transitions. Second operand 3 states. [2020-10-05 23:38:28,974 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-05 23:38:28,975 INFO L93 Difference]: Finished difference Result 138 states and 304 transitions. [2020-10-05 23:38:28,975 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-05 23:38:28,975 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 11 [2020-10-05 23:38:28,976 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-05 23:38:28,977 INFO L225 Difference]: With dead ends: 138 [2020-10-05 23:38:28,977 INFO L226 Difference]: Without dead ends: 138 [2020-10-05 23:38:28,977 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 [2020-10-05 23:38:28,978 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 138 states. [2020-10-05 23:38:28,981 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 138 to 138. [2020-10-05 23:38:28,981 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 138 states. [2020-10-05 23:38:28,982 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 138 states to 138 states and 304 transitions. [2020-10-05 23:38:28,982 INFO L78 Accepts]: Start accepts. Automaton has 138 states and 304 transitions. Word has length 11 [2020-10-05 23:38:28,982 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-05 23:38:28,983 INFO L479 AbstractCegarLoop]: Abstraction has 138 states and 304 transitions. [2020-10-05 23:38:28,983 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-05 23:38:28,983 INFO L276 IsEmpty]: Start isEmpty. Operand 138 states and 304 transitions. [2020-10-05 23:38:28,984 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-10-05 23:38:28,984 INFO L414 BasicCegarLoop]: Found error trace [2020-10-05 23:38:28,984 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-05 23:38:28,984 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-05 23:38:28,984 INFO L427 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-05 23:38:28,985 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-05 23:38:28,985 INFO L82 PathProgramCache]: Analyzing trace with hash -1787779324, now seen corresponding path program 1 times [2020-10-05 23:38:28,985 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-05 23:38:28,985 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [231426048] [2020-10-05 23:38:28,985 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-05 23:38:28,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-05 23:38:29,013 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-05 23:38:29,014 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [231426048] [2020-10-05 23:38:29,014 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-05 23:38:29,014 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-05 23:38:29,015 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1261341529] [2020-10-05 23:38:29,015 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-05 23:38:29,015 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-05 23:38:29,015 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-05 23:38:29,016 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-05 23:38:29,016 INFO L87 Difference]: Start difference. First operand 138 states and 304 transitions. Second operand 3 states. [2020-10-05 23:38:29,034 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-05 23:38:29,035 INFO L93 Difference]: Finished difference Result 146 states and 304 transitions. [2020-10-05 23:38:29,035 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-05 23:38:29,035 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 12 [2020-10-05 23:38:29,036 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-05 23:38:29,036 INFO L225 Difference]: With dead ends: 146 [2020-10-05 23:38:29,036 INFO L226 Difference]: Without dead ends: 56 [2020-10-05 23:38:29,037 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-05 23:38:29,037 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56 states. [2020-10-05 23:38:29,038 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56 to 56. [2020-10-05 23:38:29,039 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 56 states. [2020-10-05 23:38:29,039 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 108 transitions. [2020-10-05 23:38:29,039 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 108 transitions. Word has length 12 [2020-10-05 23:38:29,040 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-05 23:38:29,040 INFO L479 AbstractCegarLoop]: Abstraction has 56 states and 108 transitions. [2020-10-05 23:38:29,040 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-05 23:38:29,040 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 108 transitions. [2020-10-05 23:38:29,041 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-10-05 23:38:29,041 INFO L414 BasicCegarLoop]: Found error trace [2020-10-05 23:38:29,041 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-05 23:38:29,041 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-05 23:38:29,041 INFO L427 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-05 23:38:29,041 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-05 23:38:29,042 INFO L82 PathProgramCache]: Analyzing trace with hash 413447767, now seen corresponding path program 1 times [2020-10-05 23:38:29,042 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-05 23:38:29,042 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [661722179] [2020-10-05 23:38:29,042 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-05 23:38:29,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-05 23:38:29,069 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-05 23:38:29,070 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [661722179] [2020-10-05 23:38:29,070 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-05 23:38:29,070 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-05 23:38:29,070 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1951635257] [2020-10-05 23:38:29,071 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-05 23:38:29,071 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-05 23:38:29,071 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-05 23:38:29,071 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-05 23:38:29,072 INFO L87 Difference]: Start difference. First operand 56 states and 108 transitions. Second operand 4 states. [2020-10-05 23:38:29,090 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-05 23:38:29,090 INFO L93 Difference]: Finished difference Result 64 states and 120 transitions. [2020-10-05 23:38:29,090 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-05 23:38:29,091 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 13 [2020-10-05 23:38:29,091 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-05 23:38:29,091 INFO L225 Difference]: With dead ends: 64 [2020-10-05 23:38:29,091 INFO L226 Difference]: Without dead ends: 52 [2020-10-05 23:38:29,092 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-05 23:38:29,093 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2020-10-05 23:38:29,094 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 52. [2020-10-05 23:38:29,094 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 52 states. [2020-10-05 23:38:29,094 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 96 transitions. [2020-10-05 23:38:29,095 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 96 transitions. Word has length 13 [2020-10-05 23:38:29,095 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-05 23:38:29,095 INFO L479 AbstractCegarLoop]: Abstraction has 52 states and 96 transitions. [2020-10-05 23:38:29,095 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-05 23:38:29,095 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 96 transitions. [2020-10-05 23:38:29,096 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-10-05 23:38:29,096 INFO L414 BasicCegarLoop]: Found error trace [2020-10-05 23:38:29,096 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-05 23:38:29,096 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-05 23:38:29,097 INFO L427 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-05 23:38:29,097 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-05 23:38:29,097 INFO L82 PathProgramCache]: Analyzing trace with hash 413415217, now seen corresponding path program 2 times [2020-10-05 23:38:29,097 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-05 23:38:29,098 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1185342439] [2020-10-05 23:38:29,098 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-05 23:38:29,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-05 23:38:29,168 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-05 23:38:29,168 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1185342439] [2020-10-05 23:38:29,168 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-05 23:38:29,169 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-05 23:38:29,169 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [822709418] [2020-10-05 23:38:29,169 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-05 23:38:29,170 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-05 23:38:29,170 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-05 23:38:29,170 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-05 23:38:29,170 INFO L87 Difference]: Start difference. First operand 52 states and 96 transitions. Second operand 4 states. [2020-10-05 23:38:29,196 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-05 23:38:29,196 INFO L93 Difference]: Finished difference Result 57 states and 96 transitions. [2020-10-05 23:38:29,196 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-05 23:38:29,196 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 13 [2020-10-05 23:38:29,197 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-05 23:38:29,197 INFO L225 Difference]: With dead ends: 57 [2020-10-05 23:38:29,197 INFO L226 Difference]: Without dead ends: 43 [2020-10-05 23:38:29,198 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-05 23:38:29,198 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2020-10-05 23:38:29,199 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 43. [2020-10-05 23:38:29,199 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 43 states. [2020-10-05 23:38:29,200 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 70 transitions. [2020-10-05 23:38:29,200 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 70 transitions. Word has length 13 [2020-10-05 23:38:29,200 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-05 23:38:29,200 INFO L479 AbstractCegarLoop]: Abstraction has 43 states and 70 transitions. [2020-10-05 23:38:29,200 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-05 23:38:29,201 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 70 transitions. [2020-10-05 23:38:29,201 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-10-05 23:38:29,201 INFO L414 BasicCegarLoop]: Found error trace [2020-10-05 23:38:29,201 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-05 23:38:29,201 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-05 23:38:29,202 INFO L427 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-05 23:38:29,202 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-05 23:38:29,202 INFO L82 PathProgramCache]: Analyzing trace with hash 1574125730, now seen corresponding path program 1 times [2020-10-05 23:38:29,202 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-05 23:38:29,203 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [968156402] [2020-10-05 23:38:29,203 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-05 23:38:29,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-05 23:38:29,249 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-05 23:38:29,249 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [968156402] [2020-10-05 23:38:29,250 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-05 23:38:29,250 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-05 23:38:29,250 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1920114098] [2020-10-05 23:38:29,250 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-05 23:38:29,251 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-05 23:38:29,251 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-05 23:38:29,251 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-05 23:38:29,251 INFO L87 Difference]: Start difference. First operand 43 states and 70 transitions. Second operand 5 states. [2020-10-05 23:38:29,283 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-05 23:38:29,284 INFO L93 Difference]: Finished difference Result 39 states and 59 transitions. [2020-10-05 23:38:29,284 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-05 23:38:29,284 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 14 [2020-10-05 23:38:29,285 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-05 23:38:29,285 INFO L225 Difference]: With dead ends: 39 [2020-10-05 23:38:29,285 INFO L226 Difference]: Without dead ends: 31 [2020-10-05 23:38:29,286 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-10-05 23:38:29,286 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2020-10-05 23:38:29,287 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 31. [2020-10-05 23:38:29,287 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2020-10-05 23:38:29,287 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 44 transitions. [2020-10-05 23:38:29,288 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 44 transitions. Word has length 14 [2020-10-05 23:38:29,288 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-05 23:38:29,288 INFO L479 AbstractCegarLoop]: Abstraction has 31 states and 44 transitions. [2020-10-05 23:38:29,288 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-05 23:38:29,288 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 44 transitions. [2020-10-05 23:38:29,288 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-10-05 23:38:29,289 INFO L414 BasicCegarLoop]: Found error trace [2020-10-05 23:38:29,289 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-05 23:38:29,289 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-05 23:38:29,289 INFO L427 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-05 23:38:29,289 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-05 23:38:29,290 INFO L82 PathProgramCache]: Analyzing trace with hash 1126720068, now seen corresponding path program 1 times [2020-10-05 23:38:29,290 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-05 23:38:29,290 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [193266602] [2020-10-05 23:38:29,290 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-05 23:38:29,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-05 23:38:29,339 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-05 23:38:29,339 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [193266602] [2020-10-05 23:38:29,340 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-05 23:38:29,340 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-05 23:38:29,340 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2140214194] [2020-10-05 23:38:29,340 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-05 23:38:29,341 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-05 23:38:29,341 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-05 23:38:29,341 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-10-05 23:38:29,341 INFO L87 Difference]: Start difference. First operand 31 states and 44 transitions. Second operand 6 states. [2020-10-05 23:38:29,364 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-05 23:38:29,364 INFO L93 Difference]: Finished difference Result 28 states and 41 transitions. [2020-10-05 23:38:29,364 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-05 23:38:29,365 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 15 [2020-10-05 23:38:29,365 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-05 23:38:29,365 INFO L225 Difference]: With dead ends: 28 [2020-10-05 23:38:29,365 INFO L226 Difference]: Without dead ends: 0 [2020-10-05 23:38:29,366 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2020-10-05 23:38:29,366 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-05 23:38:29,366 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-05 23:38:29,366 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-05 23:38:29,366 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-05 23:38:29,367 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 15 [2020-10-05 23:38:29,367 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-05 23:38:29,367 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-05 23:38:29,367 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-05 23:38:29,367 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-05 23:38:29,367 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-05 23:38:29,367 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-05 23:38:29,371 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 05.10 11:38:29 BasicIcfg [2020-10-05 23:38:29,371 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-05 23:38:29,373 INFO L168 Benchmark]: Toolchain (without parser) took 4464.65 ms. Allocated memory was 140.0 MB in the beginning and 248.5 MB in the end (delta: 108.5 MB). Free memory was 101.7 MB in the beginning and 178.0 MB in the end (delta: -76.4 MB). Peak memory consumption was 32.2 MB. Max. memory is 7.1 GB. [2020-10-05 23:38:29,374 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 140.0 MB. Free memory was 121.5 MB in the beginning and 121.3 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-10-05 23:38:29,375 INFO L168 Benchmark]: CACSL2BoogieTranslator took 812.47 ms. Allocated memory was 140.0 MB in the beginning and 200.3 MB in the end (delta: 60.3 MB). Free memory was 101.5 MB in the beginning and 157.1 MB in the end (delta: -55.6 MB). Peak memory consumption was 24.8 MB. Max. memory is 7.1 GB. [2020-10-05 23:38:29,376 INFO L168 Benchmark]: Boogie Procedure Inliner took 48.98 ms. Allocated memory is still 200.3 MB. Free memory was 157.1 MB in the beginning and 155.1 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. [2020-10-05 23:38:29,377 INFO L168 Benchmark]: Boogie Preprocessor took 28.49 ms. Allocated memory is still 200.3 MB. Free memory was 155.1 MB in the beginning and 153.8 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. [2020-10-05 23:38:29,377 INFO L168 Benchmark]: RCFGBuilder took 507.03 ms. Allocated memory is still 200.3 MB. Free memory was 153.2 MB in the beginning and 131.4 MB in the end (delta: 21.8 MB). Peak memory consumption was 21.8 MB. Max. memory is 7.1 GB. [2020-10-05 23:38:29,378 INFO L168 Benchmark]: TraceAbstraction took 3061.50 ms. Allocated memory was 200.3 MB in the beginning and 248.5 MB in the end (delta: 48.2 MB). Free memory was 130.7 MB in the beginning and 178.0 MB in the end (delta: -47.3 MB). Peak memory consumption was 902.0 kB. Max. memory is 7.1 GB. [2020-10-05 23:38:29,382 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 140.0 MB. Free memory was 121.5 MB in the beginning and 121.3 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 812.47 ms. Allocated memory was 140.0 MB in the beginning and 200.3 MB in the end (delta: 60.3 MB). Free memory was 101.5 MB in the beginning and 157.1 MB in the end (delta: -55.6 MB). Peak memory consumption was 24.8 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 48.98 ms. Allocated memory is still 200.3 MB. Free memory was 157.1 MB in the beginning and 155.1 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 28.49 ms. Allocated memory is still 200.3 MB. Free memory was 155.1 MB in the beginning and 153.8 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 507.03 ms. Allocated memory is still 200.3 MB. Free memory was 153.2 MB in the beginning and 131.4 MB in the end (delta: 21.8 MB). Peak memory consumption was 21.8 MB. Max. memory is 7.1 GB. * TraceAbstraction took 3061.50 ms. Allocated memory was 200.3 MB in the beginning and 248.5 MB in the end (delta: 48.2 MB). Free memory was 130.7 MB in the beginning and 178.0 MB in the end (delta: -47.3 MB). Peak memory consumption was 902.0 kB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 1.5s, 77 ProgramPointsBefore, 31 ProgramPointsAfterwards, 69 TransitionsBefore, 22 TransitionsAfterwards, 1260 CoEnabledTransitionPairs, 7 FixpointIterations, 13 TrivialSequentialCompositions, 36 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 8 ConcurrentYvCompositions, 1 ChoiceCompositions, 656 VarBasedMoverChecksPositive, 23 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 0 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 0 MoverChecksTotal, 2483 CheckedPairsTotal, 57 TotalNumberOfCompositions - PositiveResult [Line: 7]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 68 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 2.9s, OverallIterations: 11, TraceHistogramMax: 1, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.6s, HoareTripleCheckerStatistics: 214 SDtfs, 122 SDslu, 202 SDs, 0 SdLazy, 98 SolverSat, 13 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 31 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=298occurred 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, 11 MinimizatonAttempts, 30 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 127 NumberOfCodeBlocks, 127 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 116 ConstructedInterpolants, 0 QuantifiedInterpolants, 3810 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 11 InterpolantComputations, 11 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...