/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/safe026_tso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-60655ea [2020-09-16 00:29:46,320 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-16 00:29:46,324 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-16 00:29:46,350 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-16 00:29:46,351 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-16 00:29:46,352 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-16 00:29:46,353 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-16 00:29:46,355 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-16 00:29:46,357 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-16 00:29:46,358 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-16 00:29:46,359 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-16 00:29:46,360 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-16 00:29:46,360 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-16 00:29:46,361 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-16 00:29:46,362 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-16 00:29:46,363 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-16 00:29:46,364 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-16 00:29:46,365 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-16 00:29:46,366 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-16 00:29:46,368 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-16 00:29:46,370 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-16 00:29:46,371 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-16 00:29:46,372 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-16 00:29:46,373 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-16 00:29:46,376 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-09-16 00:29:46,379 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-16 00:29:46,380 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-16 00:29:46,381 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-16 00:29:46,382 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-16 00:29:46,383 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-16 00:29:46,383 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-16 00:29:46,384 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-16 00:29:46,384 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-16 00:29:46,384 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-16 00:29:46,385 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-16 00:29:46,386 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-16 00:29:46,387 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/mcr/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-McrAutomaton-WP.epf [2020-09-16 00:29:46,414 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-16 00:29:46,414 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-16 00:29:46,416 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-16 00:29:46,416 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-16 00:29:46,416 INFO L138 SettingsManager]: * Use SBE=true [2020-09-16 00:29:46,416 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-16 00:29:46,417 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-16 00:29:46,417 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-16 00:29:46,417 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-16 00:29:46,417 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-16 00:29:46,417 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-16 00:29:46,418 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-16 00:29:46,418 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-16 00:29:46,418 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-16 00:29:46,418 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-16 00:29:46,418 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-16 00:29:46,419 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-16 00:29:46,419 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-16 00:29:46,419 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-16 00:29:46,419 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-16 00:29:46,420 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-16 00:29:46,420 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-16 00:29:46,420 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-16 00:29:46,420 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_NestedInterpolation [2020-09-16 00:29:46,420 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-16 00:29:46,421 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-16 00:29:46,421 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-16 00:29:46,421 INFO L138 SettingsManager]: * Override the interpolant automaton setting of the refinement strategy=true [2020-09-16 00:29:46,421 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=VARIABLE_BASED_MOVER_CHECK [2020-09-16 00:29:46,421 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-16 00:29:46,422 INFO L138 SettingsManager]: * Interpolant automaton=MCR [2020-09-16 00:29:46,893 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-16 00:29:46,914 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-16 00:29:46,919 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-16 00:29:46,921 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-16 00:29:46,921 INFO L275 PluginConnector]: CDTParser initialized [2020-09-16 00:29:46,923 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe026_tso.oepc.i [2020-09-16 00:29:47,007 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/b103912ae/feb8ef1222944e8794cefbb98c647ebd/FLAG42c6d7c2a [2020-09-16 00:29:47,585 INFO L306 CDTParser]: Found 1 translation units. [2020-09-16 00:29:47,586 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/pthread-wmm/safe026_tso.oepc.i [2020-09-16 00:29:47,608 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/b103912ae/feb8ef1222944e8794cefbb98c647ebd/FLAG42c6d7c2a [2020-09-16 00:29:47,833 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/b103912ae/feb8ef1222944e8794cefbb98c647ebd [2020-09-16 00:29:47,846 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-16 00:29:47,852 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-09-16 00:29:47,853 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-16 00:29:47,853 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-16 00:29:47,858 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-16 00:29:47,859 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.09 12:29:47" (1/1) ... [2020-09-16 00:29:47,863 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@40bdef33 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 12:29:47, skipping insertion in model container [2020-09-16 00:29:47,863 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.09 12:29:47" (1/1) ... [2020-09-16 00:29:47,872 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-16 00:29:47,933 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-16 00:29:48,531 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-16 00:29:48,546 INFO L203 MainTranslator]: Completed pre-run [2020-09-16 00:29:48,590 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-16 00:29:48,674 INFO L208 MainTranslator]: Completed translation [2020-09-16 00:29:48,675 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 12:29:48 WrapperNode [2020-09-16 00:29:48,675 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-16 00:29:48,676 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-09-16 00:29:48,676 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-09-16 00:29:48,677 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-09-16 00:29:48,688 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 12:29:48" (1/1) ... [2020-09-16 00:29:48,710 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 12:29:48" (1/1) ... [2020-09-16 00:29:48,735 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-09-16 00:29:48,735 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-16 00:29:48,735 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-16 00:29:48,736 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-16 00:29:48,746 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 12:29:48" (1/1) ... [2020-09-16 00:29:48,746 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 12:29:48" (1/1) ... [2020-09-16 00:29:48,750 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 12:29:48" (1/1) ... [2020-09-16 00:29:48,750 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 12:29:48" (1/1) ... [2020-09-16 00:29:48,758 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 12:29:48" (1/1) ... [2020-09-16 00:29:48,762 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 12:29:48" (1/1) ... [2020-09-16 00:29:48,764 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 12:29:48" (1/1) ... [2020-09-16 00:29:48,770 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-16 00:29:48,770 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-16 00:29:48,771 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-16 00:29:48,773 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-16 00:29:48,774 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 12:29:48" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-16 00:29:48,853 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-16 00:29:48,853 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-09-16 00:29:48,853 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-16 00:29:48,853 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-16 00:29:48,853 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-09-16 00:29:48,854 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-09-16 00:29:48,854 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-09-16 00:29:48,854 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-09-16 00:29:48,854 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-09-16 00:29:48,854 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-09-16 00:29:48,855 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-09-16 00:29:48,855 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-16 00:29:48,855 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-16 00:29:48,857 WARN L205 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-09-16 00:29:49,206 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-16 00:29:49,206 INFO L295 CfgBuilder]: Removed 8 assume(true) statements. [2020-09-16 00:29:49,212 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.09 12:29:49 BoogieIcfgContainer [2020-09-16 00:29:49,212 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-16 00:29:49,213 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-16 00:29:49,214 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-16 00:29:49,217 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-16 00:29:49,218 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.09 12:29:47" (1/3) ... [2020-09-16 00:29:49,219 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1863b0e3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.09 12:29:49, skipping insertion in model container [2020-09-16 00:29:49,219 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 12:29:48" (2/3) ... [2020-09-16 00:29:49,219 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1863b0e3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.09 12:29:49, skipping insertion in model container [2020-09-16 00:29:49,220 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.09 12:29:49" (3/3) ... [2020-09-16 00:29:49,222 INFO L109 eAbstractionObserver]: Analyzing ICFG safe026_tso.oepc.i [2020-09-16 00:29:49,233 WARN L146 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-09-16 00:29:49,233 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-16 00:29:49,244 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-16 00:29:49,245 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-09-16 00:29:49,274 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-16 00:29:49,274 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-16 00:29:49,275 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-16 00:29:49,275 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-16 00:29:49,275 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-16 00:29:49,276 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-16 00:29:49,276 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-16 00:29:49,276 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-16 00:29:49,277 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-16 00:29:49,277 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-16 00:29:49,277 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-16 00:29:49,277 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-16 00:29:49,278 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-16 00:29:49,278 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-16 00:29:49,278 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-16 00:29:49,279 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-16 00:29:49,279 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-16 00:29:49,279 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-16 00:29:49,284 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-16 00:29:49,284 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-16 00:29:49,284 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-16 00:29:49,285 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-16 00:29:49,295 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-16 00:29:49,295 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-16 00:29:49,295 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-16 00:29:49,296 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-16 00:29:49,298 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-16 00:29:49,299 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-16 00:29:49,299 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-16 00:29:49,299 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-16 00:29:49,325 INFO L251 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-09-16 00:29:49,348 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-16 00:29:49,349 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-16 00:29:49,349 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-16 00:29:49,349 INFO L378 AbstractCegarLoop]: Backedges is MCR [2020-09-16 00:29:49,349 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-16 00:29:49,349 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-16 00:29:49,350 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-16 00:29:49,350 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-16 00:29:49,367 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 76 places, 68 transitions, 151 flow [2020-09-16 00:29:49,369 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 76 places, 68 transitions, 151 flow [2020-09-16 00:29:49,414 INFO L129 PetriNetUnfolder]: 2/65 cut-off events. [2020-09-16 00:29:49,415 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-09-16 00:29:49,420 INFO L80 FinitePrefix]: Finished finitePrefix Result has 75 conditions, 65 events. 2/65 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 48 event pairs, 0 based on Foata normal form. 0/62 useless extension candidates. Maximal degree in co-relation 54. Up to 2 conditions per place. [2020-09-16 00:29:49,423 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 76 places, 68 transitions, 151 flow [2020-09-16 00:29:49,456 INFO L129 PetriNetUnfolder]: 2/65 cut-off events. [2020-09-16 00:29:49,458 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-09-16 00:29:49,459 INFO L80 FinitePrefix]: Finished finitePrefix Result has 75 conditions, 65 events. 2/65 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 48 event pairs, 0 based on Foata normal form. 0/62 useless extension candidates. Maximal degree in co-relation 54. Up to 2 conditions per place. [2020-09-16 00:29:49,461 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 1178 [2020-09-16 00:29:49,464 INFO L182 etLargeBlockEncoding]: Variable Check. [2020-09-16 00:29:50,807 INFO L206 etLargeBlockEncoding]: Checked pairs total: 2133 [2020-09-16 00:29:50,808 INFO L214 etLargeBlockEncoding]: Total number of compositions: 57 [2020-09-16 00:29:50,812 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 30 places, 20 transitions, 55 flow [2020-09-16 00:29:50,837 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 226 states. [2020-09-16 00:29:50,840 INFO L276 IsEmpty]: Start isEmpty. Operand 226 states. [2020-09-16 00:29:50,849 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-09-16 00:29:50,849 INFO L414 BasicCegarLoop]: Found error trace [2020-09-16 00:29:50,850 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-09-16 00:29:50,851 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-16 00:29:50,858 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-16 00:29:50,858 INFO L82 PathProgramCache]: Analyzing trace with hash -1225676630, now seen corresponding path program 1 times [2020-09-16 00:29:50,878 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-16 00:29:50,879 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2029660453] [2020-09-16 00:29:50,879 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-16 00:29:51,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-16 00:29:51,124 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-16 00:29:51,125 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2029660453] [2020-09-16 00:29:51,127 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-16 00:29:51,127 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-09-16 00:29:51,128 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [323535114] [2020-09-16 00:29:51,132 INFO L216 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-09-16 00:29:51,137 INFO L271 McrAutomatonBuilder]: Started intersection. [2020-09-16 00:29:51,161 INFO L274 McrAutomatonBuilder]: Finished intersection with 9 states and 8 transitions. [2020-09-16 00:29:51,162 INFO L299 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-09-16 00:29:51,178 INFO L399 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-09-16 00:29:51,179 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-16 00:29:51,183 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-16 00:29:51,207 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-16 00:29:51,208 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-16 00:29:51,211 INFO L87 Difference]: Start difference. First operand 226 states. Second operand 3 states. [2020-09-16 00:29:51,261 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-16 00:29:51,262 INFO L93 Difference]: Finished difference Result 218 states and 604 transitions. [2020-09-16 00:29:51,265 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-16 00:29:51,267 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2020-09-16 00:29:51,267 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-16 00:29:51,292 INFO L225 Difference]: With dead ends: 218 [2020-09-16 00:29:51,292 INFO L226 Difference]: Without dead ends: 170 [2020-09-16 00:29:51,294 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-16 00:29:51,321 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 170 states. [2020-09-16 00:29:51,355 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 170 to 170. [2020-09-16 00:29:51,357 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 170 states. [2020-09-16 00:29:51,361 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 170 states to 170 states and 452 transitions. [2020-09-16 00:29:51,363 INFO L78 Accepts]: Start accepts. Automaton has 170 states and 452 transitions. Word has length 8 [2020-09-16 00:29:51,363 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-16 00:29:51,364 INFO L479 AbstractCegarLoop]: Abstraction has 170 states and 452 transitions. [2020-09-16 00:29:51,364 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-16 00:29:51,364 INFO L276 IsEmpty]: Start isEmpty. Operand 170 states and 452 transitions. [2020-09-16 00:29:51,365 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-09-16 00:29:51,365 INFO L414 BasicCegarLoop]: Found error trace [2020-09-16 00:29:51,366 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-16 00:29:51,366 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-16 00:29:51,366 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-16 00:29:51,367 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-16 00:29:51,367 INFO L82 PathProgramCache]: Analyzing trace with hash 658729482, now seen corresponding path program 1 times [2020-09-16 00:29:51,367 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-16 00:29:51,368 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [175353206] [2020-09-16 00:29:51,368 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-16 00:29:51,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-16 00:29:51,468 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-16 00:29:51,468 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [175353206] [2020-09-16 00:29:51,468 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-16 00:29:51,469 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-09-16 00:29:51,469 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1820553267] [2020-09-16 00:29:51,469 INFO L216 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-09-16 00:29:51,470 INFO L271 McrAutomatonBuilder]: Started intersection. [2020-09-16 00:29:51,472 INFO L274 McrAutomatonBuilder]: Finished intersection with 13 states and 15 transitions. [2020-09-16 00:29:51,472 INFO L299 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-09-16 00:29:51,510 INFO L399 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-09-16 00:29:51,512 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-16 00:29:51,512 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-16 00:29:51,512 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-16 00:29:51,512 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-16 00:29:51,513 INFO L87 Difference]: Start difference. First operand 170 states and 452 transitions. Second operand 3 states. [2020-09-16 00:29:51,521 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-16 00:29:51,521 INFO L93 Difference]: Finished difference Result 160 states and 419 transitions. [2020-09-16 00:29:51,522 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-16 00:29:51,522 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 9 [2020-09-16 00:29:51,522 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-16 00:29:51,524 INFO L225 Difference]: With dead ends: 160 [2020-09-16 00:29:51,525 INFO L226 Difference]: Without dead ends: 160 [2020-09-16 00:29:51,525 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-16 00:29:51,529 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 160 states. [2020-09-16 00:29:51,543 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 160 to 160. [2020-09-16 00:29:51,543 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 160 states. [2020-09-16 00:29:51,545 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 160 states to 160 states and 419 transitions. [2020-09-16 00:29:51,545 INFO L78 Accepts]: Start accepts. Automaton has 160 states and 419 transitions. Word has length 9 [2020-09-16 00:29:51,545 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-16 00:29:51,546 INFO L479 AbstractCegarLoop]: Abstraction has 160 states and 419 transitions. [2020-09-16 00:29:51,546 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-16 00:29:51,546 INFO L276 IsEmpty]: Start isEmpty. Operand 160 states and 419 transitions. [2020-09-16 00:29:51,549 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-09-16 00:29:51,550 INFO L414 BasicCegarLoop]: Found error trace [2020-09-16 00:29:51,550 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-16 00:29:51,550 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-16 00:29:51,550 INFO L427 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-16 00:29:51,550 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-16 00:29:51,551 INFO L82 PathProgramCache]: Analyzing trace with hash -1054810361, now seen corresponding path program 1 times [2020-09-16 00:29:51,551 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-16 00:29:51,551 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2088797378] [2020-09-16 00:29:51,552 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-16 00:29:51,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-16 00:29:51,690 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-16 00:29:51,690 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2088797378] [2020-09-16 00:29:51,690 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-16 00:29:51,691 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-09-16 00:29:51,691 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [709543340] [2020-09-16 00:29:51,691 INFO L216 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-09-16 00:29:51,692 INFO L271 McrAutomatonBuilder]: Started intersection. [2020-09-16 00:29:51,694 INFO L274 McrAutomatonBuilder]: Finished intersection with 13 states and 14 transitions. [2020-09-16 00:29:51,694 INFO L299 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-09-16 00:29:51,703 INFO L399 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-09-16 00:29:51,703 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-16 00:29:51,703 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-16 00:29:51,704 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-16 00:29:51,704 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-16 00:29:51,704 INFO L87 Difference]: Start difference. First operand 160 states and 419 transitions. Second operand 4 states. [2020-09-16 00:29:51,732 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-16 00:29:51,733 INFO L93 Difference]: Finished difference Result 220 states and 567 transitions. [2020-09-16 00:29:51,733 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-09-16 00:29:51,733 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 10 [2020-09-16 00:29:51,734 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-16 00:29:51,736 INFO L225 Difference]: With dead ends: 220 [2020-09-16 00:29:51,736 INFO L226 Difference]: Without dead ends: 148 [2020-09-16 00:29:51,736 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 [2020-09-16 00:29:51,740 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 148 states. [2020-09-16 00:29:51,750 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 148 to 148. [2020-09-16 00:29:51,750 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 148 states. [2020-09-16 00:29:51,752 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 148 states to 148 states and 377 transitions. [2020-09-16 00:29:51,752 INFO L78 Accepts]: Start accepts. Automaton has 148 states and 377 transitions. Word has length 10 [2020-09-16 00:29:51,752 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-16 00:29:51,753 INFO L479 AbstractCegarLoop]: Abstraction has 148 states and 377 transitions. [2020-09-16 00:29:51,753 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-16 00:29:51,753 INFO L276 IsEmpty]: Start isEmpty. Operand 148 states and 377 transitions. [2020-09-16 00:29:51,754 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-09-16 00:29:51,754 INFO L414 BasicCegarLoop]: Found error trace [2020-09-16 00:29:51,754 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-16 00:29:51,754 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-16 00:29:51,755 INFO L427 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-16 00:29:51,755 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-16 00:29:51,755 INFO L82 PathProgramCache]: Analyzing trace with hash -1054223531, now seen corresponding path program 2 times [2020-09-16 00:29:51,755 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-16 00:29:51,756 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1228768729] [2020-09-16 00:29:51,756 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-16 00:29:51,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-16 00:29:51,885 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-16 00:29:51,885 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1228768729] [2020-09-16 00:29:51,886 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-16 00:29:51,886 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-09-16 00:29:51,886 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [990919128] [2020-09-16 00:29:51,886 INFO L216 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-09-16 00:29:51,887 INFO L271 McrAutomatonBuilder]: Started intersection. [2020-09-16 00:29:51,889 INFO L274 McrAutomatonBuilder]: Finished intersection with 15 states and 18 transitions. [2020-09-16 00:29:51,889 INFO L299 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-09-16 00:29:51,916 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-09-16 00:29:51,948 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-09-16 00:29:51,962 INFO L399 McrAutomatonBuilder]: Construction finished. MCR generated 1 new interpolants: [2101#(not (= 3 ~__unbuffered_cnt~0))] [2020-09-16 00:29:51,963 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-16 00:29:51,963 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-16 00:29:51,963 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-16 00:29:51,964 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-16 00:29:51,964 INFO L87 Difference]: Start difference. First operand 148 states and 377 transitions. Second operand 5 states. [2020-09-16 00:29:52,025 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-16 00:29:52,025 INFO L93 Difference]: Finished difference Result 135 states and 311 transitions. [2020-09-16 00:29:52,025 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-16 00:29:52,026 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 10 [2020-09-16 00:29:52,026 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-16 00:29:52,027 INFO L225 Difference]: With dead ends: 135 [2020-09-16 00:29:52,027 INFO L226 Difference]: Without dead ends: 93 [2020-09-16 00:29:52,028 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-09-16 00:29:52,028 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93 states. [2020-09-16 00:29:52,034 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93 to 93. [2020-09-16 00:29:52,034 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 93 states. [2020-09-16 00:29:52,035 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 93 states and 192 transitions. [2020-09-16 00:29:52,035 INFO L78 Accepts]: Start accepts. Automaton has 93 states and 192 transitions. Word has length 10 [2020-09-16 00:29:52,035 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-16 00:29:52,035 INFO L479 AbstractCegarLoop]: Abstraction has 93 states and 192 transitions. [2020-09-16 00:29:52,035 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-16 00:29:52,036 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 192 transitions. [2020-09-16 00:29:52,038 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-09-16 00:29:52,038 INFO L414 BasicCegarLoop]: Found error trace [2020-09-16 00:29:52,038 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-16 00:29:52,038 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-16 00:29:52,038 INFO L427 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-16 00:29:52,039 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-16 00:29:52,039 INFO L82 PathProgramCache]: Analyzing trace with hash -1269858217, now seen corresponding path program 1 times [2020-09-16 00:29:52,039 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-16 00:29:52,040 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [976830781] [2020-09-16 00:29:52,040 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-16 00:29:52,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-16 00:29:52,149 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-16 00:29:52,150 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [976830781] [2020-09-16 00:29:52,150 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-16 00:29:52,150 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-16 00:29:52,150 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1410586810] [2020-09-16 00:29:52,150 INFO L216 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-09-16 00:29:52,152 INFO L271 McrAutomatonBuilder]: Started intersection. [2020-09-16 00:29:52,154 INFO L274 McrAutomatonBuilder]: Finished intersection with 20 states and 25 transitions. [2020-09-16 00:29:52,155 INFO L299 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-09-16 00:29:52,195 INFO L399 McrAutomatonBuilder]: Construction finished. MCR generated 1 new interpolants: [2433#(<= ~__unbuffered_cnt~0 0)] [2020-09-16 00:29:52,195 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-16 00:29:52,196 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-16 00:29:52,196 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-16 00:29:52,196 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-09-16 00:29:52,197 INFO L87 Difference]: Start difference. First operand 93 states and 192 transitions. Second operand 7 states. [2020-09-16 00:29:52,252 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-16 00:29:52,252 INFO L93 Difference]: Finished difference Result 87 states and 178 transitions. [2020-09-16 00:29:52,252 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-16 00:29:52,253 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 13 [2020-09-16 00:29:52,253 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-16 00:29:52,254 INFO L225 Difference]: With dead ends: 87 [2020-09-16 00:29:52,254 INFO L226 Difference]: Without dead ends: 78 [2020-09-16 00:29:52,254 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2020-09-16 00:29:52,255 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78 states. [2020-09-16 00:29:52,258 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78 to 78. [2020-09-16 00:29:52,259 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 78 states. [2020-09-16 00:29:52,259 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 162 transitions. [2020-09-16 00:29:52,259 INFO L78 Accepts]: Start accepts. Automaton has 78 states and 162 transitions. Word has length 13 [2020-09-16 00:29:52,260 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-16 00:29:52,260 INFO L479 AbstractCegarLoop]: Abstraction has 78 states and 162 transitions. [2020-09-16 00:29:52,260 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-16 00:29:52,260 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 162 transitions. [2020-09-16 00:29:52,261 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-09-16 00:29:52,261 INFO L414 BasicCegarLoop]: Found error trace [2020-09-16 00:29:52,261 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-16 00:29:52,262 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-16 00:29:52,262 INFO L427 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-16 00:29:52,262 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-16 00:29:52,262 INFO L82 PathProgramCache]: Analyzing trace with hash -1906464189, now seen corresponding path program 1 times [2020-09-16 00:29:52,263 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-16 00:29:52,263 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1480700393] [2020-09-16 00:29:52,263 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-16 00:29:52,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-16 00:29:52,351 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-16 00:29:52,351 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1480700393] [2020-09-16 00:29:52,351 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-16 00:29:52,352 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-16 00:29:52,352 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1123031994] [2020-09-16 00:29:52,352 INFO L216 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-09-16 00:29:52,354 INFO L271 McrAutomatonBuilder]: Started intersection. [2020-09-16 00:29:52,360 INFO L274 McrAutomatonBuilder]: Finished intersection with 41 states and 66 transitions. [2020-09-16 00:29:52,360 INFO L299 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-09-16 00:29:52,408 INFO L399 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-09-16 00:29:52,409 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-16 00:29:52,409 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-16 00:29:52,409 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-16 00:29:52,409 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-16 00:29:52,410 INFO L87 Difference]: Start difference. First operand 78 states and 162 transitions. Second operand 4 states. [2020-09-16 00:29:52,424 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-16 00:29:52,424 INFO L93 Difference]: Finished difference Result 91 states and 183 transitions. [2020-09-16 00:29:52,425 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-09-16 00:29:52,425 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 16 [2020-09-16 00:29:52,425 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-16 00:29:52,425 INFO L225 Difference]: With dead ends: 91 [2020-09-16 00:29:52,426 INFO L226 Difference]: Without dead ends: 33 [2020-09-16 00:29:52,426 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-16 00:29:52,426 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2020-09-16 00:29:52,428 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 33. [2020-09-16 00:29:52,428 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33 states. [2020-09-16 00:29:52,428 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 51 transitions. [2020-09-16 00:29:52,428 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 51 transitions. Word has length 16 [2020-09-16 00:29:52,429 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-16 00:29:52,429 INFO L479 AbstractCegarLoop]: Abstraction has 33 states and 51 transitions. [2020-09-16 00:29:52,429 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-16 00:29:52,429 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 51 transitions. [2020-09-16 00:29:52,430 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-09-16 00:29:52,430 INFO L414 BasicCegarLoop]: Found error trace [2020-09-16 00:29:52,430 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-16 00:29:52,430 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-16 00:29:52,430 INFO L427 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-16 00:29:52,431 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-16 00:29:52,431 INFO L82 PathProgramCache]: Analyzing trace with hash -867586631, now seen corresponding path program 2 times [2020-09-16 00:29:52,431 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-16 00:29:52,432 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [347194061] [2020-09-16 00:29:52,432 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-16 00:29:52,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-16 00:29:52,476 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-16 00:29:52,477 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [347194061] [2020-09-16 00:29:52,477 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-16 00:29:52,478 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-09-16 00:29:52,478 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1872192250] [2020-09-16 00:29:52,478 INFO L216 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-09-16 00:29:52,480 INFO L271 McrAutomatonBuilder]: Started intersection. [2020-09-16 00:29:52,484 INFO L274 McrAutomatonBuilder]: Finished intersection with 25 states and 32 transitions. [2020-09-16 00:29:52,484 INFO L299 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-09-16 00:29:52,489 INFO L399 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-09-16 00:29:52,489 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-16 00:29:52,490 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-16 00:29:52,490 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-16 00:29:52,490 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-16 00:29:52,490 INFO L87 Difference]: Start difference. First operand 33 states and 51 transitions. Second operand 3 states. [2020-09-16 00:29:52,497 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-16 00:29:52,497 INFO L93 Difference]: Finished difference Result 32 states and 50 transitions. [2020-09-16 00:29:52,497 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-16 00:29:52,498 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 16 [2020-09-16 00:29:52,498 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-16 00:29:52,498 INFO L225 Difference]: With dead ends: 32 [2020-09-16 00:29:52,498 INFO L226 Difference]: Without dead ends: 0 [2020-09-16 00:29:52,499 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-16 00:29:52,499 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-09-16 00:29:52,499 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-09-16 00:29:52,499 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-09-16 00:29:52,499 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-09-16 00:29:52,500 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 16 [2020-09-16 00:29:52,500 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-16 00:29:52,500 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-09-16 00:29:52,500 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-16 00:29:52,500 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-09-16 00:29:52,502 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-09-16 00:29:52,502 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-09-16 00:29:52,511 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.09 12:29:52 BasicIcfg [2020-09-16 00:29:52,512 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-16 00:29:52,520 INFO L168 Benchmark]: Toolchain (without parser) took 4666.27 ms. Allocated memory was 146.8 MB in the beginning and 248.0 MB in the end (delta: 101.2 MB). Free memory was 100.6 MB in the beginning and 182.6 MB in the end (delta: -82.0 MB). Peak memory consumption was 19.2 MB. Max. memory is 7.1 GB. [2020-09-16 00:29:52,522 INFO L168 Benchmark]: CDTParser took 0.28 ms. Allocated memory is still 146.8 MB. Free memory was 120.1 MB in the beginning and 119.8 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. [2020-09-16 00:29:52,524 INFO L168 Benchmark]: CACSL2BoogieTranslator took 822.54 ms. Allocated memory was 146.8 MB in the beginning and 203.4 MB in the end (delta: 56.6 MB). Free memory was 100.0 MB in the beginning and 158.7 MB in the end (delta: -58.7 MB). Peak memory consumption was 20.0 MB. Max. memory is 7.1 GB. [2020-09-16 00:29:52,525 INFO L168 Benchmark]: Boogie Procedure Inliner took 58.84 ms. Allocated memory is still 203.4 MB. Free memory was 158.7 MB in the beginning and 156.7 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. [2020-09-16 00:29:52,526 INFO L168 Benchmark]: Boogie Preprocessor took 34.72 ms. Allocated memory is still 203.4 MB. Free memory was 156.7 MB in the beginning and 155.4 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. [2020-09-16 00:29:52,529 INFO L168 Benchmark]: RCFGBuilder took 441.75 ms. Allocated memory is still 203.4 MB. Free memory was 155.4 MB in the beginning and 133.4 MB in the end (delta: 22.0 MB). Peak memory consumption was 22.0 MB. Max. memory is 7.1 GB. [2020-09-16 00:29:52,532 INFO L168 Benchmark]: TraceAbstraction took 3298.49 ms. Allocated memory was 203.4 MB in the beginning and 248.0 MB in the end (delta: 44.6 MB). Free memory was 132.7 MB in the beginning and 182.6 MB in the end (delta: -49.9 MB). There was no memory consumed. Max. memory is 7.1 GB. [2020-09-16 00:29:52,539 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28 ms. Allocated memory is still 146.8 MB. Free memory was 120.1 MB in the beginning and 119.8 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 822.54 ms. Allocated memory was 146.8 MB in the beginning and 203.4 MB in the end (delta: 56.6 MB). Free memory was 100.0 MB in the beginning and 158.7 MB in the end (delta: -58.7 MB). Peak memory consumption was 20.0 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 58.84 ms. Allocated memory is still 203.4 MB. Free memory was 158.7 MB in the beginning and 156.7 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 34.72 ms. Allocated memory is still 203.4 MB. Free memory was 156.7 MB in the beginning and 155.4 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 441.75 ms. Allocated memory is still 203.4 MB. Free memory was 155.4 MB in the beginning and 133.4 MB in the end (delta: 22.0 MB). Peak memory consumption was 22.0 MB. Max. memory is 7.1 GB. * TraceAbstraction took 3298.49 ms. Allocated memory was 203.4 MB in the beginning and 248.0 MB in the end (delta: 44.6 MB). Free memory was 132.7 MB in the beginning and 182.6 MB in the end (delta: -49.9 MB). There was no memory consumed. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 1.4s, 76 ProgramPointsBefore, 30 ProgramPointsAfterwards, 68 TransitionsBefore, 20 TransitionsAfterwards, 1178 CoEnabledTransitionPairs, 7 FixpointIterations, 13 TrivialSequentialCompositions, 40 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 4 ConcurrentYvCompositions, 2 ChoiceCompositions, 583 VarBasedMoverChecksPositive, 21 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 0 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 0 MoverChecksTotal, 2133 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, 67 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 3.1s, OverallIterations: 7, TraceHistogramMax: 1, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.4s, HoareTripleCheckerStatistics: 125 SDtfs, 101 SDslu, 154 SDs, 0 SdLazy, 84 SolverSat, 21 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 68 GetRequests, 46 SyntacticMatches, 2 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=226occurred 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, 7 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 82 NumberOfCodeBlocks, 82 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 75 ConstructedInterpolants, 0 QuantifiedInterpolants, 2373 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...