/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/safe004_tso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-bf4350c [2020-09-18 00:09:32,371 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-18 00:09:32,375 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-18 00:09:32,402 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-18 00:09:32,402 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-18 00:09:32,403 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-18 00:09:32,405 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-18 00:09:32,407 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-18 00:09:32,408 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-18 00:09:32,409 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-18 00:09:32,410 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-18 00:09:32,411 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-18 00:09:32,412 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-18 00:09:32,413 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-18 00:09:32,414 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-18 00:09:32,415 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-18 00:09:32,416 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-18 00:09:32,417 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-18 00:09:32,419 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-18 00:09:32,421 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-18 00:09:32,423 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-18 00:09:32,424 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-18 00:09:32,425 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-18 00:09:32,426 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-18 00:09:32,429 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-09-18 00:09:32,433 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-18 00:09:32,434 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-18 00:09:32,435 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-18 00:09:32,435 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-18 00:09:32,437 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-18 00:09:32,437 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-18 00:09:32,438 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-18 00:09:32,438 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-18 00:09:32,438 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-18 00:09:32,439 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-18 00:09:32,440 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-18 00:09:32,441 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/mcr/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-McrAutomaton-WP.epf [2020-09-18 00:09:32,468 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-18 00:09:32,469 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-18 00:09:32,470 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-18 00:09:32,470 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-18 00:09:32,470 INFO L138 SettingsManager]: * Use SBE=true [2020-09-18 00:09:32,471 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-18 00:09:32,471 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-18 00:09:32,471 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-18 00:09:32,471 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-18 00:09:32,471 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-18 00:09:32,472 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-18 00:09:32,472 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-18 00:09:32,472 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-18 00:09:32,472 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-18 00:09:32,472 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-18 00:09:32,473 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-18 00:09:32,476 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-18 00:09:32,476 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-18 00:09:32,476 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-18 00:09:32,477 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-18 00:09:32,477 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-18 00:09:32,477 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-18 00:09:32,477 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-18 00:09:32,477 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_NestedInterpolation [2020-09-18 00:09:32,478 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-18 00:09:32,478 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-18 00:09:32,478 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-18 00:09:32,478 INFO L138 SettingsManager]: * Override the interpolant automaton setting of the refinement strategy=true [2020-09-18 00:09:32,478 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=VARIABLE_BASED_MOVER_CHECK [2020-09-18 00:09:32,478 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-18 00:09:32,479 INFO L138 SettingsManager]: * Interpolant automaton=MCR [2020-09-18 00:09:32,927 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-18 00:09:32,953 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-18 00:09:32,958 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-18 00:09:32,959 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-18 00:09:32,960 INFO L275 PluginConnector]: CDTParser initialized [2020-09-18 00:09:32,962 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe004_tso.opt.i [2020-09-18 00:09:33,042 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4ffbe55c8/d4fcc3627cb74e468c87527c1d41d4ae/FLAG98c42db2f [2020-09-18 00:09:33,681 INFO L306 CDTParser]: Found 1 translation units. [2020-09-18 00:09:33,682 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe004_tso.opt.i [2020-09-18 00:09:33,699 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4ffbe55c8/d4fcc3627cb74e468c87527c1d41d4ae/FLAG98c42db2f [2020-09-18 00:09:33,940 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4ffbe55c8/d4fcc3627cb74e468c87527c1d41d4ae [2020-09-18 00:09:33,958 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-18 00:09:33,965 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-09-18 00:09:33,968 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-18 00:09:33,968 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-18 00:09:33,973 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-18 00:09:33,974 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.09 12:09:33" (1/1) ... [2020-09-18 00:09:33,979 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@31456865 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 12:09:33, skipping insertion in model container [2020-09-18 00:09:33,980 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.09 12:09:33" (1/1) ... [2020-09-18 00:09:33,990 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-18 00:09:34,069 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-18 00:09:34,697 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-18 00:09:34,718 INFO L203 MainTranslator]: Completed pre-run [2020-09-18 00:09:34,799 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-18 00:09:34,877 INFO L208 MainTranslator]: Completed translation [2020-09-18 00:09:34,878 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 12:09:34 WrapperNode [2020-09-18 00:09:34,878 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-18 00:09:34,879 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-09-18 00:09:34,879 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-09-18 00:09:34,879 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-09-18 00:09:34,892 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 12:09:34" (1/1) ... [2020-09-18 00:09:34,913 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 12:09:34" (1/1) ... [2020-09-18 00:09:34,939 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-09-18 00:09:34,939 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-18 00:09:34,939 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-18 00:09:34,940 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-18 00:09:34,949 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 12:09:34" (1/1) ... [2020-09-18 00:09:34,950 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 12:09:34" (1/1) ... [2020-09-18 00:09:34,954 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 12:09:34" (1/1) ... [2020-09-18 00:09:34,954 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 12:09:34" (1/1) ... [2020-09-18 00:09:34,961 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 12:09:34" (1/1) ... [2020-09-18 00:09:34,968 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 12:09:34" (1/1) ... [2020-09-18 00:09:34,970 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 12:09:34" (1/1) ... [2020-09-18 00:09:34,974 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-18 00:09:34,975 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-18 00:09:34,975 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-18 00:09:34,975 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-18 00:09:34,977 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 12:09:34" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-18 00:09:35,067 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-18 00:09:35,067 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-09-18 00:09:35,067 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-18 00:09:35,068 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-18 00:09:35,068 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-09-18 00:09:35,068 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-09-18 00:09:35,069 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-09-18 00:09:35,069 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-09-18 00:09:35,069 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-09-18 00:09:35,070 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-09-18 00:09:35,070 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-09-18 00:09:35,070 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-18 00:09:35,070 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-18 00:09:35,073 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-09-18 00:09:35,466 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-18 00:09:35,466 INFO L298 CfgBuilder]: Removed 8 assume(true) statements. [2020-09-18 00:09:35,472 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.09 12:09:35 BoogieIcfgContainer [2020-09-18 00:09:35,472 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-18 00:09:35,474 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-18 00:09:35,474 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-18 00:09:35,478 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-18 00:09:35,478 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.09 12:09:33" (1/3) ... [2020-09-18 00:09:35,479 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@728b9a68 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.09 12:09:35, skipping insertion in model container [2020-09-18 00:09:35,479 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 12:09:34" (2/3) ... [2020-09-18 00:09:35,480 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@728b9a68 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.09 12:09:35, skipping insertion in model container [2020-09-18 00:09:35,480 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.09 12:09:35" (3/3) ... [2020-09-18 00:09:35,482 INFO L109 eAbstractionObserver]: Analyzing ICFG safe004_tso.opt.i [2020-09-18 00:09:35,494 WARN L146 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-09-18 00:09:35,495 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-18 00:09:35,505 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-18 00:09:35,506 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-09-18 00:09:35,538 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 00:09:35,538 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 00:09:35,539 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 00:09:35,539 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 00:09:35,540 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 00:09:35,540 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 00:09:35,540 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 00:09:35,541 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 00:09:35,541 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 00:09:35,541 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 00:09:35,542 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 00:09:35,542 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 00:09:35,542 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 00:09:35,543 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 00:09:35,543 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 00:09:35,543 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 00:09:35,544 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 00:09:35,544 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 00:09:35,549 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 00:09:35,549 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 00:09:35,549 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 00:09:35,550 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 00:09:35,562 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 00:09:35,562 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 00:09:35,563 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 00:09:35,563 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 00:09:35,567 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 00:09:35,567 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 00:09:35,567 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 00:09:35,568 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 00:09:35,593 INFO L251 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-09-18 00:09:35,619 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-18 00:09:35,619 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-18 00:09:35,620 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-18 00:09:35,620 INFO L378 AbstractCegarLoop]: Backedges is MCR [2020-09-18 00:09:35,620 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-18 00:09:35,620 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-18 00:09:35,620 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-18 00:09:35,621 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-18 00:09:35,638 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 77 places, 69 transitions, 153 flow [2020-09-18 00:09:35,641 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 77 places, 69 transitions, 153 flow [2020-09-18 00:09:35,702 INFO L129 PetriNetUnfolder]: 2/66 cut-off events. [2020-09-18 00:09:35,703 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-09-18 00:09:35,709 INFO L80 FinitePrefix]: Finished finitePrefix Result has 76 conditions, 66 events. 2/66 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 54 event pairs, 0 based on Foata normal form. 0/63 useless extension candidates. Maximal degree in co-relation 55. Up to 2 conditions per place. [2020-09-18 00:09:35,712 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 77 places, 69 transitions, 153 flow [2020-09-18 00:09:35,733 INFO L129 PetriNetUnfolder]: 2/66 cut-off events. [2020-09-18 00:09:35,733 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-09-18 00:09:35,734 INFO L80 FinitePrefix]: Finished finitePrefix Result has 76 conditions, 66 events. 2/66 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 54 event pairs, 0 based on Foata normal form. 0/63 useless extension candidates. Maximal degree in co-relation 55. Up to 2 conditions per place. [2020-09-18 00:09:35,736 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 1260 [2020-09-18 00:09:35,737 INFO L182 etLargeBlockEncoding]: Variable Check. [2020-09-18 00:09:37,164 WARN L193 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 47 [2020-09-18 00:09:37,343 INFO L206 etLargeBlockEncoding]: Checked pairs total: 2483 [2020-09-18 00:09:37,343 INFO L214 etLargeBlockEncoding]: Total number of compositions: 57 [2020-09-18 00:09:37,348 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 31 places, 22 transitions, 59 flow [2020-09-18 00:09:37,377 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 298 states. [2020-09-18 00:09:37,380 INFO L276 IsEmpty]: Start isEmpty. Operand 298 states. [2020-09-18 00:09:37,390 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-09-18 00:09:37,390 INFO L414 BasicCegarLoop]: Found error trace [2020-09-18 00:09:37,391 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-09-18 00:09:37,391 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-18 00:09:37,399 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-18 00:09:37,399 INFO L82 PathProgramCache]: Analyzing trace with hash -245765301, now seen corresponding path program 1 times [2020-09-18 00:09:37,418 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-18 00:09:37,418 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [785600805] [2020-09-18 00:09:37,419 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-18 00:09:37,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-18 00:09:37,662 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-18 00:09:37,663 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [785600805] [2020-09-18 00:09:37,664 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-18 00:09:37,665 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-09-18 00:09:37,665 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1269854081] [2020-09-18 00:09:37,667 INFO L216 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-09-18 00:09:37,671 INFO L271 McrAutomatonBuilder]: Started intersection. [2020-09-18 00:09:37,689 INFO L274 McrAutomatonBuilder]: Finished intersection with 9 states and 8 transitions. [2020-09-18 00:09:37,689 INFO L299 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-09-18 00:09:37,691 INFO L409 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-09-18 00:09:37,692 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-18 00:09:37,692 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-18 00:09:37,710 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-18 00:09:37,711 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-18 00:09:37,714 INFO L87 Difference]: Start difference. First operand 298 states. Second operand 3 states. [2020-09-18 00:09:37,781 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-18 00:09:37,785 INFO L93 Difference]: Finished difference Result 290 states and 834 transitions. [2020-09-18 00:09:37,787 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-18 00:09:37,789 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2020-09-18 00:09:37,789 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-18 00:09:37,822 INFO L225 Difference]: With dead ends: 290 [2020-09-18 00:09:37,822 INFO L226 Difference]: Without dead ends: 226 [2020-09-18 00:09:37,824 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-18 00:09:37,859 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 226 states. [2020-09-18 00:09:37,908 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 226 to 226. [2020-09-18 00:09:37,910 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 226 states. [2020-09-18 00:09:37,915 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 226 states to 226 states and 626 transitions. [2020-09-18 00:09:37,917 INFO L78 Accepts]: Start accepts. Automaton has 226 states and 626 transitions. Word has length 8 [2020-09-18 00:09:37,918 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-18 00:09:37,918 INFO L479 AbstractCegarLoop]: Abstraction has 226 states and 626 transitions. [2020-09-18 00:09:37,919 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-18 00:09:37,919 INFO L276 IsEmpty]: Start isEmpty. Operand 226 states and 626 transitions. [2020-09-18 00:09:37,920 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-09-18 00:09:37,920 INFO L414 BasicCegarLoop]: Found error trace [2020-09-18 00:09:37,921 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-18 00:09:37,921 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-18 00:09:37,921 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-18 00:09:37,921 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-18 00:09:37,921 INFO L82 PathProgramCache]: Analyzing trace with hash 956609449, now seen corresponding path program 1 times [2020-09-18 00:09:37,922 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-18 00:09:37,922 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1657730495] [2020-09-18 00:09:37,922 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-18 00:09:37,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-18 00:09:38,050 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-18 00:09:38,051 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1657730495] [2020-09-18 00:09:38,051 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-18 00:09:38,051 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-09-18 00:09:38,051 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [852733869] [2020-09-18 00:09:38,052 INFO L216 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-09-18 00:09:38,053 INFO L271 McrAutomatonBuilder]: Started intersection. [2020-09-18 00:09:38,055 INFO L274 McrAutomatonBuilder]: Finished intersection with 13 states and 15 transitions. [2020-09-18 00:09:38,055 INFO L299 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-09-18 00:09:38,083 INFO L409 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-09-18 00:09:38,085 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-18 00:09:38,085 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-18 00:09:38,085 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-18 00:09:38,086 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-18 00:09:38,086 INFO L87 Difference]: Start difference. First operand 226 states and 626 transitions. Second operand 3 states. [2020-09-18 00:09:38,097 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-18 00:09:38,097 INFO L93 Difference]: Finished difference Result 212 states and 578 transitions. [2020-09-18 00:09:38,098 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-18 00:09:38,098 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 9 [2020-09-18 00:09:38,098 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-18 00:09:38,101 INFO L225 Difference]: With dead ends: 212 [2020-09-18 00:09:38,101 INFO L226 Difference]: Without dead ends: 212 [2020-09-18 00:09:38,102 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 [2020-09-18 00:09:38,104 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 212 states. [2020-09-18 00:09:38,118 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 212 to 212. [2020-09-18 00:09:38,118 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 212 states. [2020-09-18 00:09:38,120 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 212 states to 212 states and 578 transitions. [2020-09-18 00:09:38,120 INFO L78 Accepts]: Start accepts. Automaton has 212 states and 578 transitions. Word has length 9 [2020-09-18 00:09:38,121 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-18 00:09:38,121 INFO L479 AbstractCegarLoop]: Abstraction has 212 states and 578 transitions. [2020-09-18 00:09:38,121 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-18 00:09:38,121 INFO L276 IsEmpty]: Start isEmpty. Operand 212 states and 578 transitions. [2020-09-18 00:09:38,123 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-09-18 00:09:38,123 INFO L414 BasicCegarLoop]: Found error trace [2020-09-18 00:09:38,123 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-18 00:09:38,123 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-18 00:09:38,123 INFO L427 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-18 00:09:38,124 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-18 00:09:38,124 INFO L82 PathProgramCache]: Analyzing trace with hash -409878926, now seen corresponding path program 1 times [2020-09-18 00:09:38,124 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-18 00:09:38,124 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1687346644] [2020-09-18 00:09:38,125 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-18 00:09:38,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-18 00:09:38,232 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-18 00:09:38,233 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1687346644] [2020-09-18 00:09:38,233 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-18 00:09:38,233 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-09-18 00:09:38,234 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [547974847] [2020-09-18 00:09:38,234 INFO L216 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-09-18 00:09:38,235 INFO L271 McrAutomatonBuilder]: Started intersection. [2020-09-18 00:09:38,237 INFO L274 McrAutomatonBuilder]: Finished intersection with 17 states and 23 transitions. [2020-09-18 00:09:38,238 INFO L299 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-09-18 00:09:38,281 INFO L409 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-09-18 00:09:38,281 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-18 00:09:38,281 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-18 00:09:38,282 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-18 00:09:38,282 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-18 00:09:38,282 INFO L87 Difference]: Start difference. First operand 212 states and 578 transitions. Second operand 4 states. [2020-09-18 00:09:38,318 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-18 00:09:38,319 INFO L93 Difference]: Finished difference Result 293 states and 785 transitions. [2020-09-18 00:09:38,320 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-09-18 00:09:38,320 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 10 [2020-09-18 00:09:38,320 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-18 00:09:38,325 INFO L225 Difference]: With dead ends: 293 [2020-09-18 00:09:38,325 INFO L226 Difference]: Without dead ends: 197 [2020-09-18 00:09:38,326 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-18 00:09:38,327 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 197 states. [2020-09-18 00:09:38,338 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 197 to 197. [2020-09-18 00:09:38,338 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 197 states. [2020-09-18 00:09:38,340 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 197 states to 197 states and 525 transitions. [2020-09-18 00:09:38,340 INFO L78 Accepts]: Start accepts. Automaton has 197 states and 525 transitions. Word has length 10 [2020-09-18 00:09:38,340 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-18 00:09:38,340 INFO L479 AbstractCegarLoop]: Abstraction has 197 states and 525 transitions. [2020-09-18 00:09:38,341 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-18 00:09:38,341 INFO L276 IsEmpty]: Start isEmpty. Operand 197 states and 525 transitions. [2020-09-18 00:09:38,342 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-09-18 00:09:38,342 INFO L414 BasicCegarLoop]: Found error trace [2020-09-18 00:09:38,342 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-18 00:09:38,343 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-18 00:09:38,343 INFO L427 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-18 00:09:38,343 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-18 00:09:38,343 INFO L82 PathProgramCache]: Analyzing trace with hash 1131193343, now seen corresponding path program 1 times [2020-09-18 00:09:38,344 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-18 00:09:38,344 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1293026181] [2020-09-18 00:09:38,344 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-18 00:09:38,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-18 00:09:38,414 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-18 00:09:38,414 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1293026181] [2020-09-18 00:09:38,415 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-18 00:09:38,415 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-09-18 00:09:38,415 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [428302063] [2020-09-18 00:09:38,416 INFO L216 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-09-18 00:09:38,418 INFO L271 McrAutomatonBuilder]: Started intersection. [2020-09-18 00:09:38,423 INFO L274 McrAutomatonBuilder]: Finished intersection with 25 states and 38 transitions. [2020-09-18 00:09:38,423 INFO L299 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-09-18 00:09:38,442 INFO L409 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-09-18 00:09:38,443 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-18 00:09:38,443 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-18 00:09:38,443 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-18 00:09:38,444 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-18 00:09:38,445 INFO L87 Difference]: Start difference. First operand 197 states and 525 transitions. Second operand 3 states. [2020-09-18 00:09:38,468 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-18 00:09:38,468 INFO L93 Difference]: Finished difference Result 269 states and 681 transitions. [2020-09-18 00:09:38,468 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-18 00:09:38,469 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 11 [2020-09-18 00:09:38,469 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-18 00:09:38,471 INFO L225 Difference]: With dead ends: 269 [2020-09-18 00:09:38,472 INFO L226 Difference]: Without dead ends: 209 [2020-09-18 00:09:38,472 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-18 00:09:38,474 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 209 states. [2020-09-18 00:09:38,497 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 209 to 191. [2020-09-18 00:09:38,497 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 191 states. [2020-09-18 00:09:38,502 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 191 states to 191 states and 476 transitions. [2020-09-18 00:09:38,502 INFO L78 Accepts]: Start accepts. Automaton has 191 states and 476 transitions. Word has length 11 [2020-09-18 00:09:38,502 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-18 00:09:38,503 INFO L479 AbstractCegarLoop]: Abstraction has 191 states and 476 transitions. [2020-09-18 00:09:38,506 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-18 00:09:38,506 INFO L276 IsEmpty]: Start isEmpty. Operand 191 states and 476 transitions. [2020-09-18 00:09:38,507 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-09-18 00:09:38,508 INFO L414 BasicCegarLoop]: Found error trace [2020-09-18 00:09:38,508 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-18 00:09:38,508 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-18 00:09:38,508 INFO L427 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-18 00:09:38,508 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-18 00:09:38,509 INFO L82 PathProgramCache]: Analyzing trace with hash 1251156259, now seen corresponding path program 1 times [2020-09-18 00:09:38,509 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-18 00:09:38,509 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1283550928] [2020-09-18 00:09:38,509 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-18 00:09:38,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-18 00:09:38,621 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-18 00:09:38,621 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1283550928] [2020-09-18 00:09:38,622 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-18 00:09:38,624 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-18 00:09:38,624 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [821687451] [2020-09-18 00:09:38,624 INFO L216 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-09-18 00:09:38,627 INFO L271 McrAutomatonBuilder]: Started intersection. [2020-09-18 00:09:38,631 INFO L274 McrAutomatonBuilder]: Finished intersection with 27 states and 45 transitions. [2020-09-18 00:09:38,631 INFO L299 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-09-18 00:09:38,723 INFO L409 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-09-18 00:09:38,723 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-18 00:09:38,723 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-18 00:09:38,723 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-18 00:09:38,724 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-18 00:09:38,724 INFO L87 Difference]: Start difference. First operand 191 states and 476 transitions. Second operand 4 states. [2020-09-18 00:09:38,754 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-18 00:09:38,754 INFO L93 Difference]: Finished difference Result 250 states and 578 transitions. [2020-09-18 00:09:38,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-18 00:09:38,755 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2020-09-18 00:09:38,755 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-18 00:09:38,757 INFO L225 Difference]: With dead ends: 250 [2020-09-18 00:09:38,757 INFO L226 Difference]: Without dead ends: 158 [2020-09-18 00:09:38,757 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-18 00:09:38,758 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 158 states. [2020-09-18 00:09:38,764 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 158 to 146. [2020-09-18 00:09:38,764 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 146 states. [2020-09-18 00:09:38,765 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 146 states to 146 states and 330 transitions. [2020-09-18 00:09:38,765 INFO L78 Accepts]: Start accepts. Automaton has 146 states and 330 transitions. Word has length 11 [2020-09-18 00:09:38,765 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-18 00:09:38,765 INFO L479 AbstractCegarLoop]: Abstraction has 146 states and 330 transitions. [2020-09-18 00:09:38,766 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-18 00:09:38,766 INFO L276 IsEmpty]: Start isEmpty. Operand 146 states and 330 transitions. [2020-09-18 00:09:38,767 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-09-18 00:09:38,767 INFO L414 BasicCegarLoop]: Found error trace [2020-09-18 00:09:38,767 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-18 00:09:38,767 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-18 00:09:38,767 INFO L427 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-18 00:09:38,768 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-18 00:09:38,768 INFO L82 PathProgramCache]: Analyzing trace with hash -1304596236, now seen corresponding path program 1 times [2020-09-18 00:09:38,768 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-18 00:09:38,769 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [695773528] [2020-09-18 00:09:38,769 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-18 00:09:38,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-18 00:09:38,814 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-18 00:09:38,814 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [695773528] [2020-09-18 00:09:38,814 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-18 00:09:38,815 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-09-18 00:09:38,815 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [522309163] [2020-09-18 00:09:38,815 INFO L216 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-09-18 00:09:38,816 INFO L271 McrAutomatonBuilder]: Started intersection. [2020-09-18 00:09:38,818 INFO L274 McrAutomatonBuilder]: Finished intersection with 19 states and 25 transitions. [2020-09-18 00:09:38,819 INFO L299 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-09-18 00:09:38,840 INFO L409 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-09-18 00:09:38,841 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-18 00:09:38,841 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-18 00:09:38,841 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-18 00:09:38,841 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-18 00:09:38,842 INFO L87 Difference]: Start difference. First operand 146 states and 330 transitions. Second operand 3 states. [2020-09-18 00:09:38,847 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-18 00:09:38,847 INFO L93 Difference]: Finished difference Result 138 states and 304 transitions. [2020-09-18 00:09:38,848 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-18 00:09:38,848 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 11 [2020-09-18 00:09:38,848 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-18 00:09:38,850 INFO L225 Difference]: With dead ends: 138 [2020-09-18 00:09:38,850 INFO L226 Difference]: Without dead ends: 138 [2020-09-18 00:09:38,850 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-18 00:09:38,851 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 138 states. [2020-09-18 00:09:38,855 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 138 to 138. [2020-09-18 00:09:38,855 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 138 states. [2020-09-18 00:09:38,856 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 138 states to 138 states and 304 transitions. [2020-09-18 00:09:38,856 INFO L78 Accepts]: Start accepts. Automaton has 138 states and 304 transitions. Word has length 11 [2020-09-18 00:09:38,856 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-18 00:09:38,856 INFO L479 AbstractCegarLoop]: Abstraction has 138 states and 304 transitions. [2020-09-18 00:09:38,856 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-18 00:09:38,857 INFO L276 IsEmpty]: Start isEmpty. Operand 138 states and 304 transitions. [2020-09-18 00:09:38,858 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-09-18 00:09:38,858 INFO L414 BasicCegarLoop]: Found error trace [2020-09-18 00:09:38,858 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-18 00:09:38,858 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-18 00:09:38,859 INFO L427 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-18 00:09:38,859 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-18 00:09:38,859 INFO L82 PathProgramCache]: Analyzing trace with hash -1787779324, now seen corresponding path program 1 times [2020-09-18 00:09:38,859 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-18 00:09:38,860 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1581541678] [2020-09-18 00:09:38,860 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-18 00:09:38,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-18 00:09:38,901 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-18 00:09:38,902 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1581541678] [2020-09-18 00:09:38,902 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-18 00:09:38,902 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-09-18 00:09:38,902 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1436983173] [2020-09-18 00:09:38,903 INFO L216 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-09-18 00:09:38,904 INFO L271 McrAutomatonBuilder]: Started intersection. [2020-09-18 00:09:38,906 INFO L274 McrAutomatonBuilder]: Finished intersection with 21 states and 28 transitions. [2020-09-18 00:09:38,906 INFO L299 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-09-18 00:09:38,915 INFO L409 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-09-18 00:09:38,916 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-18 00:09:38,916 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-18 00:09:38,916 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-18 00:09:38,917 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-18 00:09:38,917 INFO L87 Difference]: Start difference. First operand 138 states and 304 transitions. Second operand 3 states. [2020-09-18 00:09:38,930 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-18 00:09:38,931 INFO L93 Difference]: Finished difference Result 146 states and 304 transitions. [2020-09-18 00:09:38,931 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-18 00:09:38,931 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 12 [2020-09-18 00:09:38,932 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-18 00:09:38,932 INFO L225 Difference]: With dead ends: 146 [2020-09-18 00:09:38,932 INFO L226 Difference]: Without dead ends: 56 [2020-09-18 00:09:38,933 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 [2020-09-18 00:09:38,933 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56 states. [2020-09-18 00:09:38,935 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56 to 56. [2020-09-18 00:09:38,935 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 56 states. [2020-09-18 00:09:38,936 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 108 transitions. [2020-09-18 00:09:38,936 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 108 transitions. Word has length 12 [2020-09-18 00:09:38,936 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-18 00:09:38,936 INFO L479 AbstractCegarLoop]: Abstraction has 56 states and 108 transitions. [2020-09-18 00:09:38,936 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-18 00:09:38,937 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 108 transitions. [2020-09-18 00:09:38,937 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-09-18 00:09:38,937 INFO L414 BasicCegarLoop]: Found error trace [2020-09-18 00:09:38,937 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-18 00:09:38,938 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-09-18 00:09:38,938 INFO L427 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-18 00:09:38,938 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-18 00:09:38,938 INFO L82 PathProgramCache]: Analyzing trace with hash 413447767, now seen corresponding path program 1 times [2020-09-18 00:09:38,939 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-18 00:09:38,939 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1900755825] [2020-09-18 00:09:38,939 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-18 00:09:38,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-18 00:09:38,981 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-18 00:09:38,981 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1900755825] [2020-09-18 00:09:38,982 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-18 00:09:38,982 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-18 00:09:38,982 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [679693763] [2020-09-18 00:09:38,982 INFO L216 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-09-18 00:09:38,984 INFO L271 McrAutomatonBuilder]: Started intersection. [2020-09-18 00:09:38,987 INFO L274 McrAutomatonBuilder]: Finished intersection with 33 states and 53 transitions. [2020-09-18 00:09:38,987 INFO L299 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-09-18 00:09:38,998 INFO L409 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-09-18 00:09:38,999 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-18 00:09:38,999 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-18 00:09:38,999 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-18 00:09:38,999 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-18 00:09:39,000 INFO L87 Difference]: Start difference. First operand 56 states and 108 transitions. Second operand 4 states. [2020-09-18 00:09:39,025 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-18 00:09:39,026 INFO L93 Difference]: Finished difference Result 64 states and 120 transitions. [2020-09-18 00:09:39,026 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-09-18 00:09:39,026 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 13 [2020-09-18 00:09:39,026 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-18 00:09:39,027 INFO L225 Difference]: With dead ends: 64 [2020-09-18 00:09:39,027 INFO L226 Difference]: Without dead ends: 52 [2020-09-18 00:09:39,028 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-18 00:09:39,028 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2020-09-18 00:09:39,029 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 52. [2020-09-18 00:09:39,030 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 52 states. [2020-09-18 00:09:39,030 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 96 transitions. [2020-09-18 00:09:39,030 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 96 transitions. Word has length 13 [2020-09-18 00:09:39,030 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-18 00:09:39,031 INFO L479 AbstractCegarLoop]: Abstraction has 52 states and 96 transitions. [2020-09-18 00:09:39,031 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-18 00:09:39,031 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 96 transitions. [2020-09-18 00:09:39,031 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-09-18 00:09:39,032 INFO L414 BasicCegarLoop]: Found error trace [2020-09-18 00:09:39,032 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-18 00:09:39,032 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-09-18 00:09:39,032 INFO L427 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-18 00:09:39,032 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-18 00:09:39,032 INFO L82 PathProgramCache]: Analyzing trace with hash 413415217, now seen corresponding path program 2 times [2020-09-18 00:09:39,033 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-18 00:09:39,033 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1006793953] [2020-09-18 00:09:39,033 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-18 00:09:39,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-18 00:09:39,108 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-18 00:09:39,108 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1006793953] [2020-09-18 00:09:39,108 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-18 00:09:39,108 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-09-18 00:09:39,109 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1362817786] [2020-09-18 00:09:39,109 INFO L216 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-09-18 00:09:39,110 INFO L271 McrAutomatonBuilder]: Started intersection. [2020-09-18 00:09:39,117 INFO L274 McrAutomatonBuilder]: Finished intersection with 33 states and 53 transitions. [2020-09-18 00:09:39,117 INFO L299 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-09-18 00:09:39,143 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-09-18 00:09:39,168 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-09-18 00:09:39,183 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-09-18 00:09:39,201 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-09-18 00:09:39,216 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-09-18 00:09:39,226 INFO L409 McrAutomatonBuilder]: Construction finished. MCR generated 1 new interpolants: [4813#(not (= 3 ~__unbuffered_cnt~0))] [2020-09-18 00:09:39,227 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-18 00:09:39,227 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-18 00:09:39,227 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-18 00:09:39,228 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-18 00:09:39,228 INFO L87 Difference]: Start difference. First operand 52 states and 96 transitions. Second operand 5 states. [2020-09-18 00:09:39,281 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-18 00:09:39,281 INFO L93 Difference]: Finished difference Result 45 states and 76 transitions. [2020-09-18 00:09:39,281 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-18 00:09:39,282 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 13 [2020-09-18 00:09:39,282 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-18 00:09:39,282 INFO L225 Difference]: With dead ends: 45 [2020-09-18 00:09:39,282 INFO L226 Difference]: Without dead ends: 31 [2020-09-18 00:09:39,283 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 6 SyntacticMatches, 2 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-09-18 00:09:39,283 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2020-09-18 00:09:39,284 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 31. [2020-09-18 00:09:39,285 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2020-09-18 00:09:39,285 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 44 transitions. [2020-09-18 00:09:39,285 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 44 transitions. Word has length 13 [2020-09-18 00:09:39,286 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-18 00:09:39,286 INFO L479 AbstractCegarLoop]: Abstraction has 31 states and 44 transitions. [2020-09-18 00:09:39,286 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-18 00:09:39,286 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 44 transitions. [2020-09-18 00:09:39,287 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-09-18 00:09:39,287 INFO L414 BasicCegarLoop]: Found error trace [2020-09-18 00:09:39,287 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-18 00:09:39,287 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-09-18 00:09:39,288 INFO L427 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-18 00:09:39,288 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-18 00:09:39,288 INFO L82 PathProgramCache]: Analyzing trace with hash 1126720068, now seen corresponding path program 1 times [2020-09-18 00:09:39,288 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-18 00:09:39,289 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2090675257] [2020-09-18 00:09:39,289 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-18 00:09:39,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-18 00:09:39,363 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-18 00:09:39,363 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2090675257] [2020-09-18 00:09:39,364 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-18 00:09:39,364 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-18 00:09:39,364 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1470240855] [2020-09-18 00:09:39,364 INFO L216 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-09-18 00:09:39,365 INFO L271 McrAutomatonBuilder]: Started intersection. [2020-09-18 00:09:39,374 INFO L274 McrAutomatonBuilder]: Finished intersection with 35 states and 54 transitions. [2020-09-18 00:09:39,374 INFO L299 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-09-18 00:09:39,394 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-09-18 00:09:39,423 INFO L409 McrAutomatonBuilder]: Construction finished. MCR generated 1 new interpolants: [4931#(<= ~__unbuffered_cnt~0 0)] [2020-09-18 00:09:39,423 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-18 00:09:39,423 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-18 00:09:39,423 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-18 00:09:39,424 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-09-18 00:09:39,424 INFO L87 Difference]: Start difference. First operand 31 states and 44 transitions. Second operand 7 states. [2020-09-18 00:09:39,450 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-18 00:09:39,450 INFO L93 Difference]: Finished difference Result 28 states and 41 transitions. [2020-09-18 00:09:39,450 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-18 00:09:39,450 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 15 [2020-09-18 00:09:39,450 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-18 00:09:39,451 INFO L225 Difference]: With dead ends: 28 [2020-09-18 00:09:39,451 INFO L226 Difference]: Without dead ends: 0 [2020-09-18 00:09:39,451 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 9 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2020-09-18 00:09:39,452 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-09-18 00:09:39,452 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-09-18 00:09:39,452 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-09-18 00:09:39,452 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-09-18 00:09:39,452 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 15 [2020-09-18 00:09:39,453 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-18 00:09:39,453 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-09-18 00:09:39,453 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-18 00:09:39,453 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-09-18 00:09:39,453 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-09-18 00:09:39,453 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-09-18 00:09:39,458 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.09 12:09:39 BasicIcfg [2020-09-18 00:09:39,459 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-18 00:09:39,461 INFO L168 Benchmark]: Toolchain (without parser) took 5500.39 ms. Allocated memory was 140.0 MB in the beginning and 244.3 MB in the end (delta: 104.3 MB). Free memory was 101.4 MB in the beginning and 97.8 MB in the end (delta: 3.6 MB). Peak memory consumption was 107.9 MB. Max. memory is 7.1 GB. [2020-09-18 00:09:39,462 INFO L168 Benchmark]: CDTParser took 0.28 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). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. [2020-09-18 00:09:39,463 INFO L168 Benchmark]: CACSL2BoogieTranslator took 911.02 ms. Allocated memory was 140.0 MB in the beginning and 206.6 MB in the end (delta: 66.6 MB). Free memory was 100.7 MB in the beginning and 163.6 MB in the end (delta: -62.8 MB). Peak memory consumption was 25.3 MB. Max. memory is 7.1 GB. [2020-09-18 00:09:39,464 INFO L168 Benchmark]: Boogie Procedure Inliner took 59.93 ms. Allocated memory is still 206.6 MB. Free memory was 163.6 MB in the beginning and 161.6 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. [2020-09-18 00:09:39,465 INFO L168 Benchmark]: Boogie Preprocessor took 35.43 ms. Allocated memory is still 206.6 MB. Free memory was 161.6 MB in the beginning and 159.6 MB in the end (delta: 1.9 MB). Peak memory consumption was 1.9 MB. Max. memory is 7.1 GB. [2020-09-18 00:09:39,465 INFO L168 Benchmark]: RCFGBuilder took 497.16 ms. Allocated memory is still 206.6 MB. Free memory was 159.6 MB in the beginning and 138.0 MB in the end (delta: 21.7 MB). Peak memory consumption was 21.7 MB. Max. memory is 7.1 GB. [2020-09-18 00:09:39,466 INFO L168 Benchmark]: TraceAbstraction took 3985.38 ms. Allocated memory was 206.6 MB in the beginning and 244.3 MB in the end (delta: 37.7 MB). Free memory was 137.3 MB in the beginning and 97.8 MB in the end (delta: 39.6 MB). Peak memory consumption was 77.3 MB. Max. memory is 7.1 GB. [2020-09-18 00:09:39,470 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 140.0 MB. Free memory was 121.5 MB in the beginning and 121.3 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 911.02 ms. Allocated memory was 140.0 MB in the beginning and 206.6 MB in the end (delta: 66.6 MB). Free memory was 100.7 MB in the beginning and 163.6 MB in the end (delta: -62.8 MB). Peak memory consumption was 25.3 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 59.93 ms. Allocated memory is still 206.6 MB. Free memory was 163.6 MB in the beginning and 161.6 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 35.43 ms. Allocated memory is still 206.6 MB. Free memory was 161.6 MB in the beginning and 159.6 MB in the end (delta: 1.9 MB). Peak memory consumption was 1.9 MB. Max. memory is 7.1 GB. * RCFGBuilder took 497.16 ms. Allocated memory is still 206.6 MB. Free memory was 159.6 MB in the beginning and 138.0 MB in the end (delta: 21.7 MB). Peak memory consumption was 21.7 MB. Max. memory is 7.1 GB. * TraceAbstraction took 3985.38 ms. Allocated memory was 206.6 MB in the beginning and 244.3 MB in the end (delta: 37.7 MB). Free memory was 137.3 MB in the beginning and 97.8 MB in the end (delta: 39.6 MB). Peak memory consumption was 77.3 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 1.7s, 77 ProgramPointsBefore, 31 ProgramPointsAfterwards, 69 TransitionsBefore, 22 TransitionsAfterwards, 1260 CoEnabledTransitionPairs, 7 FixpointIterations, 13 TrivialSequentialCompositions, 36 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 8 ConcurrentYvCompositions, 1 ChoiceCompositions, 656 VarBasedMoverChecksPositive, 23 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 0 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 0 MoverChecksTotal, 2483 CheckedPairsTotal, 57 TotalNumberOfCompositions - PositiveResult [Line: 7]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 68 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 3.8s, OverallIterations: 10, TraceHistogramMax: 1, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.7s, HoareTripleCheckerStatistics: 197 SDtfs, 107 SDslu, 180 SDs, 0 SdLazy, 85 SolverSat, 15 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 110 GetRequests, 82 SyntacticMatches, 3 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=298occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 10 MinimizatonAttempts, 30 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 113 NumberOfCodeBlocks, 113 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 103 ConstructedInterpolants, 0 QuantifiedInterpolants, 3095 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 10 InterpolantComputations, 10 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...