/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/safe034_tso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-b09bf87 [2020-10-16 13:49:22,259 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-16 13:49:22,262 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-16 13:49:22,299 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-16 13:49:22,299 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-16 13:49:22,300 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-16 13:49:22,305 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-16 13:49:22,307 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-16 13:49:22,310 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-16 13:49:22,311 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-16 13:49:22,312 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-16 13:49:22,316 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-16 13:49:22,316 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-16 13:49:22,317 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-16 13:49:22,318 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-16 13:49:22,319 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-16 13:49:22,320 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-16 13:49:22,321 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-16 13:49:22,322 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-16 13:49:22,324 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-16 13:49:22,327 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-16 13:49:22,328 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-16 13:49:22,329 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-16 13:49:22,330 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-16 13:49:22,334 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-10-16 13:49:22,341 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-16 13:49:22,341 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-16 13:49:22,342 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-16 13:49:22,342 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-16 13:49:22,343 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-16 13:49:22,343 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-16 13:49:22,344 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-16 13:49:22,344 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-16 13:49:22,344 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-16 13:49:22,345 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-16 13:49:22,346 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-16 13:49:22,347 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 [2020-10-16 13:49:22,369 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-16 13:49:22,369 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-16 13:49:22,370 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-16 13:49:22,371 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-16 13:49:22,371 INFO L138 SettingsManager]: * Use SBE=true [2020-10-16 13:49:22,371 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-16 13:49:22,371 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-16 13:49:22,371 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-16 13:49:22,372 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-16 13:49:22,372 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-16 13:49:22,372 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-16 13:49:22,372 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-16 13:49:22,372 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-16 13:49:22,373 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-16 13:49:22,373 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-16 13:49:22,373 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-16 13:49:22,373 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-16 13:49:22,373 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-16 13:49:22,374 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-16 13:49:22,374 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-16 13:49:22,374 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-16 13:49:22,374 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-16 13:49:22,374 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-16 13:49:22,375 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_NestedInterpolation [2020-10-16 13:49:22,375 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-16 13:49:22,375 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-16 13:49:22,375 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-16 13:49:22,375 INFO L138 SettingsManager]: * Override the interpolant automaton setting of the refinement strategy=true [2020-10-16 13:49:22,376 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=VARIABLE_BASED_MOVER_CHECK [2020-10-16 13:49:22,376 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-16 13:49:22,376 INFO L138 SettingsManager]: * Interpolant automaton=MCR [2020-10-16 13:49:22,682 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-16 13:49:22,698 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-16 13:49:22,703 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-16 13:49:22,705 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-16 13:49:22,705 INFO L275 PluginConnector]: CDTParser initialized [2020-10-16 13:49:22,707 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe034_tso.opt.i [2020-10-16 13:49:22,776 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/d3bf5958b/93b9093ffe8746e2bd94d9684f41b443/FLAGfeb74e174 [2020-10-16 13:49:23,282 INFO L306 CDTParser]: Found 1 translation units. [2020-10-16 13:49:23,282 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/pthread-wmm/safe034_tso.opt.i [2020-10-16 13:49:23,296 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/d3bf5958b/93b9093ffe8746e2bd94d9684f41b443/FLAGfeb74e174 [2020-10-16 13:49:23,590 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/d3bf5958b/93b9093ffe8746e2bd94d9684f41b443 [2020-10-16 13:49:23,597 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-16 13:49:23,599 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-10-16 13:49:23,600 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-16 13:49:23,600 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-16 13:49:23,604 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-16 13:49:23,604 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 01:49:23" (1/1) ... [2020-10-16 13:49:23,607 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6428aca9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:49:23, skipping insertion in model container [2020-10-16 13:49:23,607 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 01:49:23" (1/1) ... [2020-10-16 13:49:23,615 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-16 13:49:23,663 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-16 13:49:24,054 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-16 13:49:24,065 INFO L203 MainTranslator]: Completed pre-run [2020-10-16 13:49:24,134 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-16 13:49:24,209 INFO L208 MainTranslator]: Completed translation [2020-10-16 13:49:24,210 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:49:24 WrapperNode [2020-10-16 13:49:24,210 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-16 13:49:24,211 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-16 13:49:24,211 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-16 13:49:24,211 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-16 13:49:24,220 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:49:24" (1/1) ... [2020-10-16 13:49:24,237 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:49:24" (1/1) ... [2020-10-16 13:49:24,259 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-16 13:49:24,259 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-16 13:49:24,259 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-16 13:49:24,260 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-16 13:49:24,268 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:49:24" (1/1) ... [2020-10-16 13:49:24,269 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:49:24" (1/1) ... [2020-10-16 13:49:24,271 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:49:24" (1/1) ... [2020-10-16 13:49:24,272 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:49:24" (1/1) ... [2020-10-16 13:49:24,278 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:49:24" (1/1) ... [2020-10-16 13:49:24,280 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:49:24" (1/1) ... [2020-10-16 13:49:24,282 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:49:24" (1/1) ... [2020-10-16 13:49:24,285 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-16 13:49:24,286 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-16 13:49:24,286 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-16 13:49:24,286 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-16 13:49:24,287 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:49:24" (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 [2020-10-16 13:49:24,350 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-16 13:49:24,351 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-10-16 13:49:24,351 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-16 13:49:24,351 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-16 13:49:24,351 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-10-16 13:49:24,351 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-10-16 13:49:24,352 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-10-16 13:49:24,352 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-10-16 13:49:24,352 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-10-16 13:49:24,352 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-10-16 13:49:24,352 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-10-16 13:49:24,352 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-16 13:49:24,353 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-16 13:49:24,354 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-10-16 13:49:24,728 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-16 13:49:24,728 INFO L298 CfgBuilder]: Removed 8 assume(true) statements. [2020-10-16 13:49:24,730 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 01:49:24 BoogieIcfgContainer [2020-10-16 13:49:24,731 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-16 13:49:24,732 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-16 13:49:24,732 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-16 13:49:24,735 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-16 13:49:24,735 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.10 01:49:23" (1/3) ... [2020-10-16 13:49:24,736 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@12370b50 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 01:49:24, skipping insertion in model container [2020-10-16 13:49:24,737 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:49:24" (2/3) ... [2020-10-16 13:49:24,737 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@12370b50 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 01:49:24, skipping insertion in model container [2020-10-16 13:49:24,737 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 01:49:24" (3/3) ... [2020-10-16 13:49:24,739 INFO L111 eAbstractionObserver]: Analyzing ICFG safe034_tso.opt.i [2020-10-16 13:49:24,750 WARN L153 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-10-16 13:49:24,751 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-16 13:49:24,759 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-16 13:49:24,760 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-10-16 13:49:24,788 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:49:24,788 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:49:24,788 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:49:24,789 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:49:24,789 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:49:24,790 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:49:24,790 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:49:24,790 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:49:24,791 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:49:24,791 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:49:24,791 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:49:24,792 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:49:24,792 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:49:24,792 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:49:24,792 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:49:24,793 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:49:24,793 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:49:24,793 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:49:24,797 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:49:24,798 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:49:24,798 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:49:24,798 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:49:24,805 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:49:24,805 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:49:24,806 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:49:24,806 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:49:24,808 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:49:24,809 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:49:24,809 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:49:24,809 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:49:24,812 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2020-10-16 13:49:24,826 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-10-16 13:49:24,848 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-16 13:49:24,848 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-16 13:49:24,848 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-16 13:49:24,849 INFO L380 AbstractCegarLoop]: Backedges is MCR [2020-10-16 13:49:24,849 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-16 13:49:24,849 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-16 13:49:24,849 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-16 13:49:24,850 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-16 13:49:24,863 INFO L137 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2020-10-16 13:49:24,864 INFO L144 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 78 places, 70 transitions, 155 flow [2020-10-16 13:49:24,867 INFO L111 LiptonReduction]: Starting Lipton reduction on Petri net that has 78 places, 70 transitions, 155 flow [2020-10-16 13:49:24,869 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 78 places, 70 transitions, 155 flow [2020-10-16 13:49:24,913 INFO L129 PetriNetUnfolder]: 2/67 cut-off events. [2020-10-16 13:49:24,914 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-10-16 13:49:24,919 INFO L80 FinitePrefix]: Finished finitePrefix Result has 77 conditions, 67 events. 2/67 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 49 event pairs, 0 based on Foata normal form. 0/64 useless extension candidates. Maximal degree in co-relation 55. Up to 2 conditions per place. [2020-10-16 13:49:24,922 INFO L117 LiptonReduction]: Number of co-enabled transitions 1260 [2020-10-16 13:49:26,218 INFO L132 LiptonReduction]: Checked pairs total: 2842 [2020-10-16 13:49:26,218 INFO L134 LiptonReduction]: Total number of compositions: 61 [2020-10-16 13:49:26,225 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 31 places, 22 transitions, 59 flow [2020-10-16 13:49:26,252 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 298 states. [2020-10-16 13:49:26,255 INFO L276 IsEmpty]: Start isEmpty. Operand 298 states. [2020-10-16 13:49:26,262 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-10-16 13:49:26,263 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 13:49:26,263 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 13:49:26,264 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 13:49:26,269 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 13:49:26,269 INFO L82 PathProgramCache]: Analyzing trace with hash 760003701, now seen corresponding path program 1 times [2020-10-16 13:49:26,293 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 13:49:26,294 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1658689222] [2020-10-16 13:49:26,294 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 13:49:26,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 13:49:26,518 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 13:49:26,519 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1658689222] [2020-10-16 13:49:26,520 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 13:49:26,520 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-10-16 13:49:26,520 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [333401044] [2020-10-16 13:49:26,521 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-16 13:49:26,525 INFO L255 McrAutomatonBuilder]: Started intersection. [2020-10-16 13:49:26,541 INFO L258 McrAutomatonBuilder]: Finished intersection with 9 states and 8 transitions. [2020-10-16 13:49:26,541 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-16 13:49:26,545 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-16 13:49:26,546 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-16 13:49:26,546 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 13:49:26,560 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-16 13:49:26,561 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-16 13:49:26,563 INFO L87 Difference]: Start difference. First operand 298 states. Second operand 3 states. [2020-10-16 13:49:26,601 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 13:49:26,601 INFO L93 Difference]: Finished difference Result 290 states and 834 transitions. [2020-10-16 13:49:26,602 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-16 13:49:26,603 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2020-10-16 13:49:26,604 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 13:49:26,618 INFO L225 Difference]: With dead ends: 290 [2020-10-16 13:49:26,618 INFO L226 Difference]: Without dead ends: 226 [2020-10-16 13:49:26,620 INFO L677 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 [2020-10-16 13:49:26,645 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 226 states. [2020-10-16 13:49:26,685 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 226 to 226. [2020-10-16 13:49:26,687 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 226 states. [2020-10-16 13:49:26,691 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 226 states to 226 states and 626 transitions. [2020-10-16 13:49:26,693 INFO L78 Accepts]: Start accepts. Automaton has 226 states and 626 transitions. Word has length 8 [2020-10-16 13:49:26,694 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 13:49:26,694 INFO L481 AbstractCegarLoop]: Abstraction has 226 states and 626 transitions. [2020-10-16 13:49:26,694 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-16 13:49:26,694 INFO L276 IsEmpty]: Start isEmpty. Operand 226 states and 626 transitions. [2020-10-16 13:49:26,696 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-10-16 13:49:26,696 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 13:49:26,696 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 13:49:26,696 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-16 13:49:26,696 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 13:49:26,697 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 13:49:26,697 INFO L82 PathProgramCache]: Analyzing trace with hash 2069729619, now seen corresponding path program 1 times [2020-10-16 13:49:26,700 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 13:49:26,701 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1620789606] [2020-10-16 13:49:26,701 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 13:49:26,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 13:49:26,805 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 13:49:26,805 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1620789606] [2020-10-16 13:49:26,806 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 13:49:26,806 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-16 13:49:26,806 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1471196167] [2020-10-16 13:49:26,807 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-16 13:49:26,807 INFO L255 McrAutomatonBuilder]: Started intersection. [2020-10-16 13:49:26,813 INFO L258 McrAutomatonBuilder]: Finished intersection with 15 states and 19 transitions. [2020-10-16 13:49:26,813 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-16 13:49:26,853 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-10-16 13:49:26,893 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-16 13:49:26,895 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-16 13:49:26,895 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 13:49:26,895 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-16 13:49:26,896 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-16 13:49:26,896 INFO L87 Difference]: Start difference. First operand 226 states and 626 transitions. Second operand 4 states. [2020-10-16 13:49:26,935 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 13:49:26,935 INFO L93 Difference]: Finished difference Result 242 states and 605 transitions. [2020-10-16 13:49:26,936 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-16 13:49:26,936 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 9 [2020-10-16 13:49:26,936 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 13:49:26,938 INFO L225 Difference]: With dead ends: 242 [2020-10-16 13:49:26,938 INFO L226 Difference]: Without dead ends: 178 [2020-10-16 13:49:26,939 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-16 13:49:26,943 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 178 states. [2020-10-16 13:49:26,953 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 178 to 178. [2020-10-16 13:49:26,954 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 178 states. [2020-10-16 13:49:26,955 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 178 states to 178 states and 434 transitions. [2020-10-16 13:49:26,955 INFO L78 Accepts]: Start accepts. Automaton has 178 states and 434 transitions. Word has length 9 [2020-10-16 13:49:26,955 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 13:49:26,956 INFO L481 AbstractCegarLoop]: Abstraction has 178 states and 434 transitions. [2020-10-16 13:49:26,956 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-16 13:49:26,956 INFO L276 IsEmpty]: Start isEmpty. Operand 178 states and 434 transitions. [2020-10-16 13:49:26,957 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-10-16 13:49:26,957 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 13:49:26,957 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 13:49:26,958 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-16 13:49:26,958 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 13:49:26,958 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 13:49:26,958 INFO L82 PathProgramCache]: Analyzing trace with hash -1183022512, now seen corresponding path program 1 times [2020-10-16 13:49:26,959 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 13:49:26,960 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [239755516] [2020-10-16 13:49:26,960 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 13:49:26,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 13:49:27,052 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 13:49:27,052 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [239755516] [2020-10-16 13:49:27,052 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 13:49:27,053 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-16 13:49:27,053 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [2043966366] [2020-10-16 13:49:27,053 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-16 13:49:27,054 INFO L255 McrAutomatonBuilder]: Started intersection. [2020-10-16 13:49:27,057 INFO L258 McrAutomatonBuilder]: Finished intersection with 24 states and 35 transitions. [2020-10-16 13:49:27,057 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-16 13:49:27,113 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 1 new interpolants: [2031#(<= ~__unbuffered_cnt~0 0)] [2020-10-16 13:49:27,113 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-16 13:49:27,114 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 13:49:27,114 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-16 13:49:27,114 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-10-16 13:49:27,114 INFO L87 Difference]: Start difference. First operand 178 states and 434 transitions. Second operand 6 states. [2020-10-16 13:49:27,161 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 13:49:27,162 INFO L93 Difference]: Finished difference Result 163 states and 368 transitions. [2020-10-16 13:49:27,162 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-16 13:49:27,162 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 11 [2020-10-16 13:49:27,163 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 13:49:27,164 INFO L225 Difference]: With dead ends: 163 [2020-10-16 13:49:27,164 INFO L226 Difference]: Without dead ends: 126 [2020-10-16 13:49:27,164 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 9 SyntacticMatches, 2 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2020-10-16 13:49:27,165 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 126 states. [2020-10-16 13:49:27,172 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 126 to 126. [2020-10-16 13:49:27,172 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 126 states. [2020-10-16 13:49:27,172 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 126 states to 126 states and 278 transitions. [2020-10-16 13:49:27,173 INFO L78 Accepts]: Start accepts. Automaton has 126 states and 278 transitions. Word has length 11 [2020-10-16 13:49:27,173 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 13:49:27,173 INFO L481 AbstractCegarLoop]: Abstraction has 126 states and 278 transitions. [2020-10-16 13:49:27,173 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-16 13:49:27,173 INFO L276 IsEmpty]: Start isEmpty. Operand 126 states and 278 transitions. [2020-10-16 13:49:27,175 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-10-16 13:49:27,175 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 13:49:27,175 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 13:49:27,175 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-16 13:49:27,175 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 13:49:27,176 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 13:49:27,176 INFO L82 PathProgramCache]: Analyzing trace with hash -1548024821, now seen corresponding path program 1 times [2020-10-16 13:49:27,177 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 13:49:27,177 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [488470225] [2020-10-16 13:49:27,178 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 13:49:27,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 13:49:27,241 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 13:49:27,242 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [488470225] [2020-10-16 13:49:27,242 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 13:49:27,242 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-16 13:49:27,242 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [631501502] [2020-10-16 13:49:27,242 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-16 13:49:27,244 INFO L255 McrAutomatonBuilder]: Started intersection. [2020-10-16 13:49:27,248 INFO L258 McrAutomatonBuilder]: Finished intersection with 39 states and 66 transitions. [2020-10-16 13:49:27,249 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-16 13:49:27,384 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 1 new interpolants: [2455#(<= ~__unbuffered_cnt~0 0)] [2020-10-16 13:49:27,385 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-16 13:49:27,385 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 13:49:27,386 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-16 13:49:27,386 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-10-16 13:49:27,386 INFO L87 Difference]: Start difference. First operand 126 states and 278 transitions. Second operand 7 states. [2020-10-16 13:49:27,449 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 13:49:27,449 INFO L93 Difference]: Finished difference Result 118 states and 260 transitions. [2020-10-16 13:49:27,450 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-16 13:49:27,450 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 14 [2020-10-16 13:49:27,450 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 13:49:27,451 INFO L225 Difference]: With dead ends: 118 [2020-10-16 13:49:27,451 INFO L226 Difference]: Without dead ends: 108 [2020-10-16 13:49:27,452 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 21 SyntacticMatches, 2 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2020-10-16 13:49:27,452 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 108 states. [2020-10-16 13:49:27,456 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 108 to 108. [2020-10-16 13:49:27,456 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 108 states. [2020-10-16 13:49:27,457 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 108 states to 108 states and 242 transitions. [2020-10-16 13:49:27,457 INFO L78 Accepts]: Start accepts. Automaton has 108 states and 242 transitions. Word has length 14 [2020-10-16 13:49:27,457 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 13:49:27,458 INFO L481 AbstractCegarLoop]: Abstraction has 108 states and 242 transitions. [2020-10-16 13:49:27,458 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-16 13:49:27,458 INFO L276 IsEmpty]: Start isEmpty. Operand 108 states and 242 transitions. [2020-10-16 13:49:27,459 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-10-16 13:49:27,459 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 13:49:27,459 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 13:49:27,460 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-16 13:49:27,460 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 13:49:27,460 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 13:49:27,460 INFO L82 PathProgramCache]: Analyzing trace with hash 2137678742, now seen corresponding path program 1 times [2020-10-16 13:49:27,462 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 13:49:27,462 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1682085444] [2020-10-16 13:49:27,462 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 13:49:27,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 13:49:27,499 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 13:49:27,500 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1682085444] [2020-10-16 13:49:27,500 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 13:49:27,500 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-16 13:49:27,500 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [809609032] [2020-10-16 13:49:27,501 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-16 13:49:27,503 INFO L255 McrAutomatonBuilder]: Started intersection. [2020-10-16 13:49:27,509 INFO L258 McrAutomatonBuilder]: Finished intersection with 46 states and 77 transitions. [2020-10-16 13:49:27,509 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-16 13:49:27,518 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-16 13:49:27,519 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-16 13:49:27,519 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 13:49:27,519 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-16 13:49:27,520 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-16 13:49:27,520 INFO L87 Difference]: Start difference. First operand 108 states and 242 transitions. Second operand 3 states. [2020-10-16 13:49:27,526 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 13:49:27,527 INFO L93 Difference]: Finished difference Result 133 states and 289 transitions. [2020-10-16 13:49:27,527 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-16 13:49:27,527 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 17 [2020-10-16 13:49:27,528 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 13:49:27,528 INFO L225 Difference]: With dead ends: 133 [2020-10-16 13:49:27,528 INFO L226 Difference]: Without dead ends: 54 [2020-10-16 13:49:27,529 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-16 13:49:27,529 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2020-10-16 13:49:27,531 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 54. [2020-10-16 13:49:27,531 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 54 states. [2020-10-16 13:49:27,532 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 98 transitions. [2020-10-16 13:49:27,532 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 98 transitions. Word has length 17 [2020-10-16 13:49:27,532 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 13:49:27,532 INFO L481 AbstractCegarLoop]: Abstraction has 54 states and 98 transitions. [2020-10-16 13:49:27,533 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-16 13:49:27,533 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 98 transitions. [2020-10-16 13:49:27,533 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-10-16 13:49:27,533 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 13:49:27,534 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 13:49:27,534 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-16 13:49:27,534 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 13:49:27,534 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 13:49:27,534 INFO L82 PathProgramCache]: Analyzing trace with hash 1164645812, now seen corresponding path program 2 times [2020-10-16 13:49:27,535 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 13:49:27,536 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1066330907] [2020-10-16 13:49:27,536 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 13:49:27,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 13:49:27,575 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 13:49:27,576 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1066330907] [2020-10-16 13:49:27,576 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 13:49:27,576 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-16 13:49:27,576 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1268808705] [2020-10-16 13:49:27,577 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-16 13:49:27,579 INFO L255 McrAutomatonBuilder]: Started intersection. [2020-10-16 13:49:27,587 INFO L258 McrAutomatonBuilder]: Finished intersection with 57 states and 105 transitions. [2020-10-16 13:49:27,588 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-16 13:49:27,611 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-16 13:49:27,612 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-16 13:49:27,612 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 13:49:27,612 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-16 13:49:27,612 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-16 13:49:27,613 INFO L87 Difference]: Start difference. First operand 54 states and 98 transitions. Second operand 4 states. [2020-10-16 13:49:27,625 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 13:49:27,625 INFO L93 Difference]: Finished difference Result 67 states and 119 transitions. [2020-10-16 13:49:27,626 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-16 13:49:27,626 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 17 [2020-10-16 13:49:27,626 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 13:49:27,627 INFO L225 Difference]: With dead ends: 67 [2020-10-16 13:49:27,627 INFO L226 Difference]: Without dead ends: 30 [2020-10-16 13:49:27,627 INFO L677 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 [2020-10-16 13:49:27,628 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2020-10-16 13:49:27,629 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 30. [2020-10-16 13:49:27,629 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2020-10-16 13:49:27,629 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 44 transitions. [2020-10-16 13:49:27,629 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 44 transitions. Word has length 17 [2020-10-16 13:49:27,629 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 13:49:27,630 INFO L481 AbstractCegarLoop]: Abstraction has 30 states and 44 transitions. [2020-10-16 13:49:27,630 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-16 13:49:27,630 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 44 transitions. [2020-10-16 13:49:27,630 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-10-16 13:49:27,630 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 13:49:27,631 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 13:49:27,631 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-16 13:49:27,631 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 13:49:27,631 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 13:49:27,631 INFO L82 PathProgramCache]: Analyzing trace with hash 2098338434, now seen corresponding path program 3 times [2020-10-16 13:49:27,632 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 13:49:27,633 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1079999296] [2020-10-16 13:49:27,633 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 13:49:27,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 13:49:27,667 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 13:49:27,668 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1079999296] [2020-10-16 13:49:27,668 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 13:49:27,668 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-16 13:49:27,669 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1130181476] [2020-10-16 13:49:27,669 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-16 13:49:27,671 INFO L255 McrAutomatonBuilder]: Started intersection. [2020-10-16 13:49:27,677 INFO L258 McrAutomatonBuilder]: Finished intersection with 41 states and 59 transitions. [2020-10-16 13:49:27,677 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-16 13:49:27,691 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-16 13:49:27,691 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-16 13:49:27,692 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 13:49:27,692 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-16 13:49:27,692 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-16 13:49:27,692 INFO L87 Difference]: Start difference. First operand 30 states and 44 transitions. Second operand 4 states. [2020-10-16 13:49:27,702 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 13:49:27,703 INFO L93 Difference]: Finished difference Result 29 states and 43 transitions. [2020-10-16 13:49:27,703 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-16 13:49:27,703 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 17 [2020-10-16 13:49:27,703 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 13:49:27,703 INFO L225 Difference]: With dead ends: 29 [2020-10-16 13:49:27,704 INFO L226 Difference]: Without dead ends: 0 [2020-10-16 13:49:27,704 INFO L677 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 [2020-10-16 13:49:27,704 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-16 13:49:27,704 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-16 13:49:27,705 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-16 13:49:27,705 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-16 13:49:27,705 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 17 [2020-10-16 13:49:27,705 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 13:49:27,705 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-16 13:49:27,705 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-16 13:49:27,706 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-16 13:49:27,706 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-16 13:49:27,706 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-16 13:49:27,710 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.10 01:49:27 BasicIcfg [2020-10-16 13:49:27,710 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-16 13:49:27,713 INFO L168 Benchmark]: Toolchain (without parser) took 4113.11 ms. Allocated memory was 140.0 MB in the beginning and 246.4 MB in the end (delta: 106.4 MB). Free memory was 101.6 MB in the beginning and 149.6 MB in the end (delta: -48.0 MB). Peak memory consumption was 58.4 MB. Max. memory is 7.1 GB. [2020-10-16 13:49:27,713 INFO L168 Benchmark]: CDTParser took 0.22 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: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. [2020-10-16 13:49:27,714 INFO L168 Benchmark]: CACSL2BoogieTranslator took 610.58 ms. Allocated memory was 140.0 MB in the beginning and 203.4 MB in the end (delta: 63.4 MB). Free memory was 101.4 MB in the beginning and 160.5 MB in the end (delta: -59.1 MB). Peak memory consumption was 24.0 MB. Max. memory is 7.1 GB. [2020-10-16 13:49:27,715 INFO L168 Benchmark]: Boogie Procedure Inliner took 47.93 ms. Allocated memory is still 203.4 MB. Free memory was 160.5 MB in the beginning and 158.1 MB in the end (delta: 2.4 MB). Peak memory consumption was 2.4 MB. Max. memory is 7.1 GB. [2020-10-16 13:49:27,716 INFO L168 Benchmark]: Boogie Preprocessor took 26.46 ms. Allocated memory is still 203.4 MB. Free memory was 158.1 MB in the beginning and 156.1 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. [2020-10-16 13:49:27,717 INFO L168 Benchmark]: RCFGBuilder took 444.67 ms. Allocated memory is still 203.4 MB. Free memory was 156.1 MB in the beginning and 133.6 MB in the end (delta: 22.6 MB). Peak memory consumption was 22.6 MB. Max. memory is 7.1 GB. [2020-10-16 13:49:27,718 INFO L168 Benchmark]: TraceAbstraction took 2978.10 ms. Allocated memory was 203.4 MB in the beginning and 246.4 MB in the end (delta: 43.0 MB). Free memory was 133.6 MB in the beginning and 149.6 MB in the end (delta: -16.1 MB). Peak memory consumption was 26.9 MB. Max. memory is 7.1 GB. [2020-10-16 13:49:27,722 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 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: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 610.58 ms. Allocated memory was 140.0 MB in the beginning and 203.4 MB in the end (delta: 63.4 MB). Free memory was 101.4 MB in the beginning and 160.5 MB in the end (delta: -59.1 MB). Peak memory consumption was 24.0 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 47.93 ms. Allocated memory is still 203.4 MB. Free memory was 160.5 MB in the beginning and 158.1 MB in the end (delta: 2.4 MB). Peak memory consumption was 2.4 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 26.46 ms. Allocated memory is still 203.4 MB. Free memory was 158.1 MB in the beginning and 156.1 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 444.67 ms. Allocated memory is still 203.4 MB. Free memory was 156.1 MB in the beginning and 133.6 MB in the end (delta: 22.6 MB). Peak memory consumption was 22.6 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2978.10 ms. Allocated memory was 203.4 MB in the beginning and 246.4 MB in the end (delta: 43.0 MB). Free memory was 133.6 MB in the beginning and 149.6 MB in the end (delta: -16.1 MB). Peak memory consumption was 26.9 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 674 VarBasedMoverChecksPositive, 21 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 0 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 36 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 1.3s, 78 PlacesBefore, 31 PlacesAfterwards, 70 TransitionsBefore, 22 TransitionsAfterwards, 1260 CoEnabledTransitionPairs, 6 FixpointIterations, 14 TrivialSequentialCompositions, 38 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 8 ConcurrentYvCompositions, 1 ChoiceCompositions, 61 TotalNumberOfCompositions, 2842 MoverChecksTotal - 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, 69 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 2.8s, OverallIterations: 7, TraceHistogramMax: 1, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.4s, HoareTripleCheckerStatistics: 141 SDtfs, 106 SDslu, 217 SDs, 0 SdLazy, 103 SolverSat, 20 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 110 GetRequests, 83 SyntacticMatches, 5 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 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: 0.0s AutomataMinimizationTime, 7 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 93 NumberOfCodeBlocks, 93 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 86 ConstructedInterpolants, 0 QuantifiedInterpolants, 2838 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 7 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...