/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/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/pthread-wmm/safe027_tso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-b981219 [2020-04-17 18:09:14,623 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-04-17 18:09:14,625 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-04-17 18:09:14,645 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-04-17 18:09:14,645 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-04-17 18:09:14,647 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-04-17 18:09:14,649 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-04-17 18:09:14,659 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-04-17 18:09:14,662 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-04-17 18:09:14,665 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-04-17 18:09:14,666 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-04-17 18:09:14,668 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-04-17 18:09:14,668 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-04-17 18:09:14,670 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-04-17 18:09:14,672 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-04-17 18:09:14,674 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-04-17 18:09:14,675 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-04-17 18:09:14,677 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-04-17 18:09:14,678 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-04-17 18:09:14,682 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-04-17 18:09:14,687 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-04-17 18:09:14,690 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-04-17 18:09:14,691 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-04-17 18:09:14,692 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-04-17 18:09:14,694 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-04-17 18:09:14,694 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-04-17 18:09:14,694 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-04-17 18:09:14,696 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-04-17 18:09:14,697 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-04-17 18:09:14,699 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-04-17 18:09:14,699 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-04-17 18:09:14,700 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-04-17 18:09:14,701 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-04-17 18:09:14,702 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-04-17 18:09:14,703 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-04-17 18:09:14,703 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-04-17 18:09:14,704 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-04-17 18:09:14,704 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-04-17 18:09:14,704 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-04-17 18:09:14,705 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-04-17 18:09:14,706 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-04-17 18:09:14,707 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-04-17 18:09:14,743 INFO L113 SettingsManager]: Loading preferences was successful [2020-04-17 18:09:14,743 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-04-17 18:09:14,748 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-04-17 18:09:14,748 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-04-17 18:09:14,748 INFO L138 SettingsManager]: * Use SBE=true [2020-04-17 18:09:14,748 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-04-17 18:09:14,749 INFO L138 SettingsManager]: * sizeof long=4 [2020-04-17 18:09:14,749 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-04-17 18:09:14,751 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-04-17 18:09:14,751 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-04-17 18:09:14,751 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-04-17 18:09:14,752 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-04-17 18:09:14,752 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-04-17 18:09:14,752 INFO L138 SettingsManager]: * sizeof long double=12 [2020-04-17 18:09:14,752 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-04-17 18:09:14,752 INFO L138 SettingsManager]: * Use constant arrays=true [2020-04-17 18:09:14,753 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-04-17 18:09:14,753 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-04-17 18:09:14,754 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-04-17 18:09:14,754 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-04-17 18:09:14,754 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-04-17 18:09:14,754 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-04-17 18:09:14,754 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-04-17 18:09:14,755 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-04-17 18:09:14,755 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-04-17 18:09:14,755 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-04-17 18:09:14,755 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-04-17 18:09:14,755 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-04-17 18:09:14,756 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-04-17 18:09:14,756 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-04-17 18:09:15,043 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-04-17 18:09:15,055 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-04-17 18:09:15,059 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-04-17 18:09:15,060 INFO L271 PluginConnector]: Initializing CDTParser... [2020-04-17 18:09:15,060 INFO L275 PluginConnector]: CDTParser initialized [2020-04-17 18:09:15,061 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe027_tso.oepc.i [2020-04-17 18:09:15,121 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fbf06cc46/8551de203e8a4c3cad8a923df78b9cdb/FLAG3b003b6d4 [2020-04-17 18:09:15,657 INFO L306 CDTParser]: Found 1 translation units. [2020-04-17 18:09:15,658 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe027_tso.oepc.i [2020-04-17 18:09:15,679 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fbf06cc46/8551de203e8a4c3cad8a923df78b9cdb/FLAG3b003b6d4 [2020-04-17 18:09:15,956 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fbf06cc46/8551de203e8a4c3cad8a923df78b9cdb [2020-04-17 18:09:15,966 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-04-17 18:09:15,989 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-04-17 18:09:15,990 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-04-17 18:09:15,990 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-04-17 18:09:15,994 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-04-17 18:09:15,995 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.04 06:09:15" (1/1) ... [2020-04-17 18:09:15,998 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@36b347a9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.04 06:09:15, skipping insertion in model container [2020-04-17 18:09:15,998 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.04 06:09:15" (1/1) ... [2020-04-17 18:09:16,006 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-04-17 18:09:16,055 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-04-17 18:09:16,557 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-04-17 18:09:16,574 INFO L203 MainTranslator]: Completed pre-run [2020-04-17 18:09:16,643 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-04-17 18:09:16,721 INFO L208 MainTranslator]: Completed translation [2020-04-17 18:09:16,722 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.04 06:09:16 WrapperNode [2020-04-17 18:09:16,722 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-04-17 18:09:16,723 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-04-17 18:09:16,723 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-04-17 18:09:16,723 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-04-17 18:09:16,733 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.04 06:09:16" (1/1) ... [2020-04-17 18:09:16,778 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.04 06:09:16" (1/1) ... [2020-04-17 18:09:16,807 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-04-17 18:09:16,807 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-04-17 18:09:16,807 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-04-17 18:09:16,807 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-04-17 18:09:16,814 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.04 06:09:16" (1/1) ... [2020-04-17 18:09:16,814 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.04 06:09:16" (1/1) ... [2020-04-17 18:09:16,817 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.04 06:09:16" (1/1) ... [2020-04-17 18:09:16,817 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.04 06:09:16" (1/1) ... [2020-04-17 18:09:16,824 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.04 06:09:16" (1/1) ... [2020-04-17 18:09:16,826 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.04 06:09:16" (1/1) ... [2020-04-17 18:09:16,829 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.04 06:09:16" (1/1) ... [2020-04-17 18:09:16,832 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-04-17 18:09:16,832 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-04-17 18:09:16,833 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-04-17 18:09:16,833 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-04-17 18:09:16,834 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.04 06:09:16" (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 [2020-04-17 18:09:16,889 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-04-17 18:09:16,889 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-04-17 18:09:16,890 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-04-17 18:09:16,890 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-04-17 18:09:16,890 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-04-17 18:09:16,890 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-04-17 18:09:16,891 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-04-17 18:09:16,891 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-04-17 18:09:16,891 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-04-17 18:09:16,891 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-04-17 18:09:16,891 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2020-04-17 18:09:16,891 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2020-04-17 18:09:16,892 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-04-17 18:09:16,892 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-04-17 18:09:16,892 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-04-17 18:09:16,894 WARN L205 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-04-17 18:09:17,294 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-04-17 18:09:17,295 INFO L295 CfgBuilder]: Removed 8 assume(true) statements. [2020-04-17 18:09:17,299 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.04 06:09:17 BoogieIcfgContainer [2020-04-17 18:09:17,299 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-04-17 18:09:17,300 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-04-17 18:09:17,301 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-04-17 18:09:17,309 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-04-17 18:09:17,309 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.04 06:09:15" (1/3) ... [2020-04-17 18:09:17,310 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2054e75c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.04 06:09:17, skipping insertion in model container [2020-04-17 18:09:17,311 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.04 06:09:16" (2/3) ... [2020-04-17 18:09:17,311 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2054e75c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.04 06:09:17, skipping insertion in model container [2020-04-17 18:09:17,311 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.04 06:09:17" (3/3) ... [2020-04-17 18:09:17,313 INFO L109 eAbstractionObserver]: Analyzing ICFG safe027_tso.oepc.i [2020-04-17 18:09:17,329 WARN L146 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-04-17 18:09:17,329 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-04-17 18:09:17,338 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-04-17 18:09:17,339 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-04-17 18:09:17,371 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:09:17,371 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:09:17,372 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:09:17,372 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:09:17,373 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:09:17,373 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:09:17,374 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:09:17,374 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:09:17,374 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:09:17,375 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:09:17,375 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:09:17,376 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:09:17,377 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:09:17,378 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:09:17,378 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:09:17,378 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:09:17,380 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:09:17,380 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:09:17,380 WARN L315 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:09:17,381 WARN L315 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:09:17,381 WARN L315 ript$VariableManager]: TermVariabe P3Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:09:17,381 WARN L315 ript$VariableManager]: TermVariabe P3Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:09:17,383 WARN L315 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:09:17,383 WARN L315 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:09:17,392 WARN L315 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:09:17,392 WARN L315 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:09:17,392 WARN L315 ript$VariableManager]: TermVariabe P3Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:09:17,393 WARN L315 ript$VariableManager]: TermVariabe P3Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:09:17,403 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:09:17,405 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:09:17,405 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:09:17,406 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:09:17,408 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:09:17,408 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:09:17,409 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:09:17,409 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:09:17,415 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:09:17,415 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:09:17,416 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:09:17,416 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:09:17,434 INFO L251 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2020-04-17 18:09:17,458 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-04-17 18:09:17,458 INFO L376 AbstractCegarLoop]: Hoare is true [2020-04-17 18:09:17,458 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-04-17 18:09:17,459 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-04-17 18:09:17,459 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-04-17 18:09:17,459 INFO L380 AbstractCegarLoop]: Difference is false [2020-04-17 18:09:17,459 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-04-17 18:09:17,461 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-04-17 18:09:17,486 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 93 places, 82 transitions, 184 flow [2020-04-17 18:09:17,488 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 93 places, 82 transitions, 184 flow [2020-04-17 18:09:17,553 INFO L129 PetriNetUnfolder]: 2/78 cut-off events. [2020-04-17 18:09:17,553 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-04-17 18:09:17,559 INFO L80 FinitePrefix]: Finished finitePrefix Result has 91 conditions, 78 events. 2/78 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 61 event pairs, 0 based on Foata normal form. 0/75 useless extension candidates. Maximal degree in co-relation 67. Up to 2 conditions per place. [2020-04-17 18:09:17,562 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 93 places, 82 transitions, 184 flow [2020-04-17 18:09:17,592 INFO L129 PetriNetUnfolder]: 2/78 cut-off events. [2020-04-17 18:09:17,593 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-04-17 18:09:17,594 INFO L80 FinitePrefix]: Finished finitePrefix Result has 91 conditions, 78 events. 2/78 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 61 event pairs, 0 based on Foata normal form. 0/75 useless extension candidates. Maximal degree in co-relation 67. Up to 2 conditions per place. [2020-04-17 18:09:17,601 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 1822 [2020-04-17 18:09:17,604 INFO L170 etLargeBlockEncoding]: Semantic Check. [2020-04-17 18:09:19,486 WARN L192 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 51 [2020-04-17 18:09:19,568 INFO L206 etLargeBlockEncoding]: Checked pairs total: 2807 [2020-04-17 18:09:19,568 INFO L214 etLargeBlockEncoding]: Total number of compositions: 63 [2020-04-17 18:09:19,572 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 39 places, 27 transitions, 74 flow [2020-04-17 18:09:19,637 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 850 states. [2020-04-17 18:09:19,640 INFO L276 IsEmpty]: Start isEmpty. Operand 850 states. [2020-04-17 18:09:19,650 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-04-17 18:09:19,650 INFO L417 BasicCegarLoop]: Found error trace [2020-04-17 18:09:19,651 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-17 18:09:19,652 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-17 18:09:19,659 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-17 18:09:19,659 INFO L82 PathProgramCache]: Analyzing trace with hash 91051740, now seen corresponding path program 1 times [2020-04-17 18:09:19,670 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-17 18:09:19,670 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [884374590] [2020-04-17 18:09:19,671 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-17 18:09:19,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-17 18:09:19,919 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-17 18:09:19,919 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [884374590] [2020-04-17 18:09:19,920 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-17 18:09:19,921 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-04-17 18:09:19,921 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [350701340] [2020-04-17 18:09:19,926 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-04-17 18:09:19,926 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-17 18:09:19,941 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-04-17 18:09:19,942 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-04-17 18:09:19,944 INFO L87 Difference]: Start difference. First operand 850 states. Second operand 2 states. [2020-04-17 18:09:20,001 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-17 18:09:20,001 INFO L93 Difference]: Finished difference Result 850 states and 2994 transitions. [2020-04-17 18:09:20,002 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-04-17 18:09:20,003 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 10 [2020-04-17 18:09:20,004 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-17 18:09:20,060 INFO L225 Difference]: With dead ends: 850 [2020-04-17 18:09:20,060 INFO L226 Difference]: Without dead ends: 706 [2020-04-17 18:09:20,061 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-04-17 18:09:20,091 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 706 states. [2020-04-17 18:09:20,213 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 706 to 706. [2020-04-17 18:09:20,214 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 706 states. [2020-04-17 18:09:20,228 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 706 states to 706 states and 2442 transitions. [2020-04-17 18:09:20,230 INFO L78 Accepts]: Start accepts. Automaton has 706 states and 2442 transitions. Word has length 10 [2020-04-17 18:09:20,231 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-17 18:09:20,234 INFO L479 AbstractCegarLoop]: Abstraction has 706 states and 2442 transitions. [2020-04-17 18:09:20,234 INFO L480 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-04-17 18:09:20,234 INFO L276 IsEmpty]: Start isEmpty. Operand 706 states and 2442 transitions. [2020-04-17 18:09:20,239 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-04-17 18:09:20,244 INFO L417 BasicCegarLoop]: Found error trace [2020-04-17 18:09:20,245 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-17 18:09:20,245 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-17 18:09:20,245 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-17 18:09:20,246 INFO L82 PathProgramCache]: Analyzing trace with hash -1472387704, now seen corresponding path program 1 times [2020-04-17 18:09:20,246 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-17 18:09:20,246 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [799652994] [2020-04-17 18:09:20,246 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-17 18:09:20,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-17 18:09:20,391 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-17 18:09:20,392 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [799652994] [2020-04-17 18:09:20,392 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-17 18:09:20,392 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-04-17 18:09:20,393 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1808959551] [2020-04-17 18:09:20,394 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-04-17 18:09:20,395 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-17 18:09:20,395 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-04-17 18:09:20,395 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-04-17 18:09:20,395 INFO L87 Difference]: Start difference. First operand 706 states and 2442 transitions. Second operand 4 states. [2020-04-17 18:09:20,435 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-17 18:09:20,435 INFO L93 Difference]: Finished difference Result 778 states and 2592 transitions. [2020-04-17 18:09:20,436 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-04-17 18:09:20,436 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2020-04-17 18:09:20,436 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-17 18:09:20,442 INFO L225 Difference]: With dead ends: 778 [2020-04-17 18:09:20,442 INFO L226 Difference]: Without dead ends: 634 [2020-04-17 18:09:20,443 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-04-17 18:09:20,447 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 634 states. [2020-04-17 18:09:20,465 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 634 to 634. [2020-04-17 18:09:20,466 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 634 states. [2020-04-17 18:09:20,470 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 634 states to 634 states and 2148 transitions. [2020-04-17 18:09:20,470 INFO L78 Accepts]: Start accepts. Automaton has 634 states and 2148 transitions. Word has length 11 [2020-04-17 18:09:20,471 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-17 18:09:20,471 INFO L479 AbstractCegarLoop]: Abstraction has 634 states and 2148 transitions. [2020-04-17 18:09:20,471 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-04-17 18:09:20,471 INFO L276 IsEmpty]: Start isEmpty. Operand 634 states and 2148 transitions. [2020-04-17 18:09:20,473 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-04-17 18:09:20,473 INFO L417 BasicCegarLoop]: Found error trace [2020-04-17 18:09:20,474 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-17 18:09:20,474 INFO L427 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-17 18:09:20,474 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-17 18:09:20,474 INFO L82 PathProgramCache]: Analyzing trace with hash 1606888751, now seen corresponding path program 1 times [2020-04-17 18:09:20,475 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-17 18:09:20,475 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [687971174] [2020-04-17 18:09:20,475 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-17 18:09:20,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-17 18:09:20,582 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-17 18:09:20,583 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [687971174] [2020-04-17 18:09:20,583 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-17 18:09:20,583 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-04-17 18:09:20,583 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [905330040] [2020-04-17 18:09:20,584 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-04-17 18:09:20,584 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-17 18:09:20,584 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-04-17 18:09:20,585 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-04-17 18:09:20,585 INFO L87 Difference]: Start difference. First operand 634 states and 2148 transitions. Second operand 4 states. [2020-04-17 18:09:20,643 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-17 18:09:20,643 INFO L93 Difference]: Finished difference Result 688 states and 2256 transitions. [2020-04-17 18:09:20,644 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-04-17 18:09:20,644 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 12 [2020-04-17 18:09:20,644 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-17 18:09:20,649 INFO L225 Difference]: With dead ends: 688 [2020-04-17 18:09:20,649 INFO L226 Difference]: Without dead ends: 580 [2020-04-17 18:09:20,650 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-04-17 18:09:20,655 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 580 states. [2020-04-17 18:09:20,670 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 580 to 580. [2020-04-17 18:09:20,670 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 580 states. [2020-04-17 18:09:20,674 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 580 states to 580 states and 1932 transitions. [2020-04-17 18:09:20,674 INFO L78 Accepts]: Start accepts. Automaton has 580 states and 1932 transitions. Word has length 12 [2020-04-17 18:09:20,674 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-17 18:09:20,674 INFO L479 AbstractCegarLoop]: Abstraction has 580 states and 1932 transitions. [2020-04-17 18:09:20,674 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-04-17 18:09:20,675 INFO L276 IsEmpty]: Start isEmpty. Operand 580 states and 1932 transitions. [2020-04-17 18:09:20,678 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-04-17 18:09:20,678 INFO L417 BasicCegarLoop]: Found error trace [2020-04-17 18:09:20,679 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-17 18:09:20,679 INFO L427 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-17 18:09:20,679 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-17 18:09:20,679 INFO L82 PathProgramCache]: Analyzing trace with hash -1718865431, now seen corresponding path program 1 times [2020-04-17 18:09:20,680 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-17 18:09:20,680 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1043599195] [2020-04-17 18:09:20,680 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-17 18:09:20,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-17 18:09:20,797 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-17 18:09:20,798 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1043599195] [2020-04-17 18:09:20,798 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-17 18:09:20,802 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-04-17 18:09:20,802 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [207278482] [2020-04-17 18:09:20,803 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-04-17 18:09:20,803 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-17 18:09:20,803 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-04-17 18:09:20,803 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-04-17 18:09:20,804 INFO L87 Difference]: Start difference. First operand 580 states and 1932 transitions. Second operand 5 states. [2020-04-17 18:09:20,876 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-17 18:09:20,876 INFO L93 Difference]: Finished difference Result 751 states and 2457 transitions. [2020-04-17 18:09:20,876 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-04-17 18:09:20,877 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 13 [2020-04-17 18:09:20,877 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-17 18:09:20,880 INFO L225 Difference]: With dead ends: 751 [2020-04-17 18:09:20,880 INFO L226 Difference]: Without dead ends: 358 [2020-04-17 18:09:20,880 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-04-17 18:09:20,882 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 358 states. [2020-04-17 18:09:20,891 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 358 to 358. [2020-04-17 18:09:20,891 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 358 states. [2020-04-17 18:09:20,893 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 358 states to 358 states and 1128 transitions. [2020-04-17 18:09:20,894 INFO L78 Accepts]: Start accepts. Automaton has 358 states and 1128 transitions. Word has length 13 [2020-04-17 18:09:20,894 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-17 18:09:20,894 INFO L479 AbstractCegarLoop]: Abstraction has 358 states and 1128 transitions. [2020-04-17 18:09:20,894 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-04-17 18:09:20,894 INFO L276 IsEmpty]: Start isEmpty. Operand 358 states and 1128 transitions. [2020-04-17 18:09:20,895 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-04-17 18:09:20,895 INFO L417 BasicCegarLoop]: Found error trace [2020-04-17 18:09:20,895 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-17 18:09:20,896 INFO L427 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-17 18:09:20,896 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-17 18:09:20,896 INFO L82 PathProgramCache]: Analyzing trace with hash -1081404616, now seen corresponding path program 1 times [2020-04-17 18:09:20,896 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-17 18:09:20,897 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [241780852] [2020-04-17 18:09:20,897 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-17 18:09:20,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-17 18:09:20,991 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-17 18:09:20,991 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [241780852] [2020-04-17 18:09:20,992 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-17 18:09:20,992 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-04-17 18:09:20,992 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1539458584] [2020-04-17 18:09:20,992 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-04-17 18:09:20,993 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-17 18:09:20,993 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-04-17 18:09:20,994 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-04-17 18:09:20,995 INFO L87 Difference]: Start difference. First operand 358 states and 1128 transitions. Second operand 5 states. [2020-04-17 18:09:21,059 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-17 18:09:21,060 INFO L93 Difference]: Finished difference Result 496 states and 1517 transitions. [2020-04-17 18:09:21,060 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-04-17 18:09:21,060 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 14 [2020-04-17 18:09:21,061 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-17 18:09:21,063 INFO L225 Difference]: With dead ends: 496 [2020-04-17 18:09:21,063 INFO L226 Difference]: Without dead ends: 262 [2020-04-17 18:09:21,063 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-04-17 18:09:21,065 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 262 states. [2020-04-17 18:09:21,071 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 262 to 262. [2020-04-17 18:09:21,071 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 262 states. [2020-04-17 18:09:21,072 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 262 states to 262 states and 771 transitions. [2020-04-17 18:09:21,073 INFO L78 Accepts]: Start accepts. Automaton has 262 states and 771 transitions. Word has length 14 [2020-04-17 18:09:21,073 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-17 18:09:21,073 INFO L479 AbstractCegarLoop]: Abstraction has 262 states and 771 transitions. [2020-04-17 18:09:21,073 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-04-17 18:09:21,073 INFO L276 IsEmpty]: Start isEmpty. Operand 262 states and 771 transitions. [2020-04-17 18:09:21,074 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-04-17 18:09:21,074 INFO L417 BasicCegarLoop]: Found error trace [2020-04-17 18:09:21,074 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-17 18:09:21,075 INFO L427 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-17 18:09:21,075 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-17 18:09:21,075 INFO L82 PathProgramCache]: Analyzing trace with hash -1257194017, now seen corresponding path program 1 times [2020-04-17 18:09:21,075 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-17 18:09:21,076 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [786162989] [2020-04-17 18:09:21,076 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-17 18:09:21,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-17 18:09:21,126 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-17 18:09:21,126 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [786162989] [2020-04-17 18:09:21,126 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-17 18:09:21,127 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-04-17 18:09:21,127 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1195709654] [2020-04-17 18:09:21,127 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-04-17 18:09:21,127 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-17 18:09:21,128 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-04-17 18:09:21,128 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-04-17 18:09:21,128 INFO L87 Difference]: Start difference. First operand 262 states and 771 transitions. Second operand 4 states. [2020-04-17 18:09:21,178 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-17 18:09:21,179 INFO L93 Difference]: Finished difference Result 319 states and 873 transitions. [2020-04-17 18:09:21,179 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-04-17 18:09:21,179 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 15 [2020-04-17 18:09:21,180 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-17 18:09:21,181 INFO L225 Difference]: With dead ends: 319 [2020-04-17 18:09:21,182 INFO L226 Difference]: Without dead ends: 238 [2020-04-17 18:09:21,182 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-04-17 18:09:21,184 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 238 states. [2020-04-17 18:09:21,192 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 238 to 238. [2020-04-17 18:09:21,192 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 238 states. [2020-04-17 18:09:21,194 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 238 states to 238 states and 659 transitions. [2020-04-17 18:09:21,194 INFO L78 Accepts]: Start accepts. Automaton has 238 states and 659 transitions. Word has length 15 [2020-04-17 18:09:21,195 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-17 18:09:21,195 INFO L479 AbstractCegarLoop]: Abstraction has 238 states and 659 transitions. [2020-04-17 18:09:21,195 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-04-17 18:09:21,195 INFO L276 IsEmpty]: Start isEmpty. Operand 238 states and 659 transitions. [2020-04-17 18:09:21,196 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-04-17 18:09:21,196 INFO L417 BasicCegarLoop]: Found error trace [2020-04-17 18:09:21,196 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-17 18:09:21,196 INFO L427 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-17 18:09:21,197 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-17 18:09:21,197 INFO L82 PathProgramCache]: Analyzing trace with hash -857649028, now seen corresponding path program 1 times [2020-04-17 18:09:21,197 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-17 18:09:21,197 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1215349825] [2020-04-17 18:09:21,197 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-17 18:09:21,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-17 18:09:21,289 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-17 18:09:21,290 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1215349825] [2020-04-17 18:09:21,290 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-17 18:09:21,291 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-04-17 18:09:21,291 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1144083877] [2020-04-17 18:09:21,292 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-04-17 18:09:21,292 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-17 18:09:21,292 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-04-17 18:09:21,293 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-04-17 18:09:21,294 INFO L87 Difference]: Start difference. First operand 238 states and 659 transitions. Second operand 5 states. [2020-04-17 18:09:21,360 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-17 18:09:21,361 INFO L93 Difference]: Finished difference Result 247 states and 617 transitions. [2020-04-17 18:09:21,361 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-04-17 18:09:21,361 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 16 [2020-04-17 18:09:21,362 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-17 18:09:21,363 INFO L225 Difference]: With dead ends: 247 [2020-04-17 18:09:21,363 INFO L226 Difference]: Without dead ends: 182 [2020-04-17 18:09:21,363 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-04-17 18:09:21,365 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 182 states. [2020-04-17 18:09:21,370 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 182 to 182. [2020-04-17 18:09:21,371 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 182 states. [2020-04-17 18:09:21,372 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 182 states to 182 states and 443 transitions. [2020-04-17 18:09:21,372 INFO L78 Accepts]: Start accepts. Automaton has 182 states and 443 transitions. Word has length 16 [2020-04-17 18:09:21,373 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-17 18:09:21,373 INFO L479 AbstractCegarLoop]: Abstraction has 182 states and 443 transitions. [2020-04-17 18:09:21,373 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-04-17 18:09:21,373 INFO L276 IsEmpty]: Start isEmpty. Operand 182 states and 443 transitions. [2020-04-17 18:09:21,375 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-04-17 18:09:21,375 INFO L417 BasicCegarLoop]: Found error trace [2020-04-17 18:09:21,375 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-17 18:09:21,375 INFO L427 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-17 18:09:21,376 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-17 18:09:21,376 INFO L82 PathProgramCache]: Analyzing trace with hash -981483084, now seen corresponding path program 1 times [2020-04-17 18:09:21,376 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-17 18:09:21,377 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2093441510] [2020-04-17 18:09:21,377 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-17 18:09:21,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-17 18:09:21,471 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-17 18:09:21,472 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2093441510] [2020-04-17 18:09:21,472 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-17 18:09:21,472 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-04-17 18:09:21,473 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1321046282] [2020-04-17 18:09:21,473 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-04-17 18:09:21,473 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-17 18:09:21,473 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-04-17 18:09:21,474 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-04-17 18:09:21,474 INFO L87 Difference]: Start difference. First operand 182 states and 443 transitions. Second operand 6 states. [2020-04-17 18:09:21,541 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-17 18:09:21,542 INFO L93 Difference]: Finished difference Result 165 states and 373 transitions. [2020-04-17 18:09:21,542 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-04-17 18:09:21,542 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 17 [2020-04-17 18:09:21,543 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-17 18:09:21,544 INFO L225 Difference]: With dead ends: 165 [2020-04-17 18:09:21,544 INFO L226 Difference]: Without dead ends: 132 [2020-04-17 18:09:21,544 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2020-04-17 18:09:21,545 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 132 states. [2020-04-17 18:09:21,548 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 132 to 132. [2020-04-17 18:09:21,550 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 132 states. [2020-04-17 18:09:21,551 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 132 states to 132 states and 295 transitions. [2020-04-17 18:09:21,551 INFO L78 Accepts]: Start accepts. Automaton has 132 states and 295 transitions. Word has length 17 [2020-04-17 18:09:21,551 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-17 18:09:21,552 INFO L479 AbstractCegarLoop]: Abstraction has 132 states and 295 transitions. [2020-04-17 18:09:21,552 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-04-17 18:09:21,552 INFO L276 IsEmpty]: Start isEmpty. Operand 132 states and 295 transitions. [2020-04-17 18:09:21,556 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-04-17 18:09:21,556 INFO L417 BasicCegarLoop]: Found error trace [2020-04-17 18:09:21,556 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-17 18:09:21,556 INFO L427 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-17 18:09:21,557 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-17 18:09:21,557 INFO L82 PathProgramCache]: Analyzing trace with hash 1311703103, now seen corresponding path program 1 times [2020-04-17 18:09:21,557 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-17 18:09:21,558 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1090096600] [2020-04-17 18:09:21,558 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-17 18:09:21,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-17 18:09:21,655 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-17 18:09:21,657 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1090096600] [2020-04-17 18:09:21,657 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-17 18:09:21,658 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-04-17 18:09:21,658 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [786362788] [2020-04-17 18:09:21,658 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-04-17 18:09:21,658 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-17 18:09:21,659 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-04-17 18:09:21,659 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-04-17 18:09:21,659 INFO L87 Difference]: Start difference. First operand 132 states and 295 transitions. Second operand 7 states. [2020-04-17 18:09:21,733 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-17 18:09:21,733 INFO L93 Difference]: Finished difference Result 121 states and 271 transitions. [2020-04-17 18:09:21,733 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-04-17 18:09:21,733 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 19 [2020-04-17 18:09:21,734 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-17 18:09:21,735 INFO L225 Difference]: With dead ends: 121 [2020-04-17 18:09:21,735 INFO L226 Difference]: Without dead ends: 112 [2020-04-17 18:09:21,735 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2020-04-17 18:09:21,736 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 112 states. [2020-04-17 18:09:21,738 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 112 to 112. [2020-04-17 18:09:21,739 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 112 states. [2020-04-17 18:09:21,739 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112 states to 112 states and 255 transitions. [2020-04-17 18:09:21,739 INFO L78 Accepts]: Start accepts. Automaton has 112 states and 255 transitions. Word has length 19 [2020-04-17 18:09:21,740 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-17 18:09:21,740 INFO L479 AbstractCegarLoop]: Abstraction has 112 states and 255 transitions. [2020-04-17 18:09:21,740 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-04-17 18:09:21,740 INFO L276 IsEmpty]: Start isEmpty. Operand 112 states and 255 transitions. [2020-04-17 18:09:21,741 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-04-17 18:09:21,741 INFO L417 BasicCegarLoop]: Found error trace [2020-04-17 18:09:21,741 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-17 18:09:21,741 INFO L427 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-17 18:09:21,741 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-17 18:09:21,741 INFO L82 PathProgramCache]: Analyzing trace with hash 188961609, now seen corresponding path program 1 times [2020-04-17 18:09:21,742 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-17 18:09:21,742 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1486620892] [2020-04-17 18:09:21,742 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-17 18:09:21,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-17 18:09:21,809 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-17 18:09:21,809 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1486620892] [2020-04-17 18:09:21,810 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-17 18:09:21,810 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-04-17 18:09:21,810 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [737069047] [2020-04-17 18:09:21,810 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-04-17 18:09:21,811 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-17 18:09:21,811 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-04-17 18:09:21,811 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-04-17 18:09:21,811 INFO L87 Difference]: Start difference. First operand 112 states and 255 transitions. Second operand 5 states. [2020-04-17 18:09:21,850 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-17 18:09:21,850 INFO L93 Difference]: Finished difference Result 146 states and 329 transitions. [2020-04-17 18:09:21,850 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-04-17 18:09:21,850 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 21 [2020-04-17 18:09:21,851 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-17 18:09:21,851 INFO L225 Difference]: With dead ends: 146 [2020-04-17 18:09:21,851 INFO L226 Difference]: Without dead ends: 52 [2020-04-17 18:09:21,852 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-04-17 18:09:21,854 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2020-04-17 18:09:21,855 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 52. [2020-04-17 18:09:21,855 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 52 states. [2020-04-17 18:09:21,856 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 98 transitions. [2020-04-17 18:09:21,856 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 98 transitions. Word has length 21 [2020-04-17 18:09:21,856 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-17 18:09:21,856 INFO L479 AbstractCegarLoop]: Abstraction has 52 states and 98 transitions. [2020-04-17 18:09:21,857 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-04-17 18:09:21,857 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 98 transitions. [2020-04-17 18:09:21,857 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-04-17 18:09:21,857 INFO L417 BasicCegarLoop]: Found error trace [2020-04-17 18:09:21,857 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-17 18:09:21,858 INFO L427 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-17 18:09:21,858 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-17 18:09:21,858 INFO L82 PathProgramCache]: Analyzing trace with hash -62971415, now seen corresponding path program 2 times [2020-04-17 18:09:21,858 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-17 18:09:21,859 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1683941808] [2020-04-17 18:09:21,859 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-17 18:09:21,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-17 18:09:21,925 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-17 18:09:21,926 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1683941808] [2020-04-17 18:09:21,927 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-17 18:09:21,927 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-04-17 18:09:21,927 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1574378129] [2020-04-17 18:09:21,927 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-04-17 18:09:21,928 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-17 18:09:21,928 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-04-17 18:09:21,928 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-04-17 18:09:21,928 INFO L87 Difference]: Start difference. First operand 52 states and 98 transitions. Second operand 5 states. [2020-04-17 18:09:21,957 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-17 18:09:21,957 INFO L93 Difference]: Finished difference Result 51 states and 97 transitions. [2020-04-17 18:09:21,957 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-04-17 18:09:21,958 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 21 [2020-04-17 18:09:21,958 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-17 18:09:21,958 INFO L225 Difference]: With dead ends: 51 [2020-04-17 18:09:21,958 INFO L226 Difference]: Without dead ends: 0 [2020-04-17 18:09:21,959 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-04-17 18:09:21,959 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-04-17 18:09:21,959 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-04-17 18:09:21,959 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-04-17 18:09:21,959 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-04-17 18:09:21,960 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 21 [2020-04-17 18:09:21,960 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-17 18:09:21,960 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-04-17 18:09:21,961 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-04-17 18:09:21,961 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-04-17 18:09:21,961 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-04-17 18:09:21,966 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 17.04 06:09:21 BasicIcfg [2020-04-17 18:09:21,967 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-04-17 18:09:21,969 INFO L168 Benchmark]: Toolchain (without parser) took 6000.62 ms. Allocated memory was 142.1 MB in the beginning and 276.8 MB in the end (delta: 134.7 MB). Free memory was 104.6 MB in the beginning and 154.7 MB in the end (delta: -50.1 MB). Peak memory consumption was 84.6 MB. Max. memory is 7.1 GB. [2020-04-17 18:09:21,970 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 142.1 MB. Free memory was 125.2 MB in the beginning and 125.0 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. [2020-04-17 18:09:21,977 INFO L168 Benchmark]: CACSL2BoogieTranslator took 732.59 ms. Allocated memory was 142.1 MB in the beginning and 205.0 MB in the end (delta: 62.9 MB). Free memory was 102.6 MB in the beginning and 161.9 MB in the end (delta: -59.2 MB). Peak memory consumption was 26.0 MB. Max. memory is 7.1 GB. [2020-04-17 18:09:21,978 INFO L168 Benchmark]: Boogie Procedure Inliner took 83.75 ms. Allocated memory is still 205.0 MB. Free memory was 161.2 MB in the beginning and 159.4 MB in the end (delta: 1.8 MB). Peak memory consumption was 1.8 MB. Max. memory is 7.1 GB. [2020-04-17 18:09:21,979 INFO L168 Benchmark]: Boogie Preprocessor took 24.96 ms. Allocated memory is still 205.0 MB. Free memory was 159.4 MB in the beginning and 157.5 MB in the end (delta: 1.9 MB). Peak memory consumption was 1.9 MB. Max. memory is 7.1 GB. [2020-04-17 18:09:21,980 INFO L168 Benchmark]: RCFGBuilder took 466.80 ms. Allocated memory is still 205.0 MB. Free memory was 157.5 MB in the beginning and 133.7 MB in the end (delta: 23.8 MB). Peak memory consumption was 23.8 MB. Max. memory is 7.1 GB. [2020-04-17 18:09:21,985 INFO L168 Benchmark]: TraceAbstraction took 4666.24 ms. Allocated memory was 205.0 MB in the beginning and 276.8 MB in the end (delta: 71.8 MB). Free memory was 133.1 MB in the beginning and 154.7 MB in the end (delta: -21.6 MB). Peak memory consumption was 50.2 MB. Max. memory is 7.1 GB. [2020-04-17 18:09:21,994 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 142.1 MB. Free memory was 125.2 MB in the beginning and 125.0 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 732.59 ms. Allocated memory was 142.1 MB in the beginning and 205.0 MB in the end (delta: 62.9 MB). Free memory was 102.6 MB in the beginning and 161.9 MB in the end (delta: -59.2 MB). Peak memory consumption was 26.0 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 83.75 ms. Allocated memory is still 205.0 MB. Free memory was 161.2 MB in the beginning and 159.4 MB in the end (delta: 1.8 MB). Peak memory consumption was 1.8 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 24.96 ms. Allocated memory is still 205.0 MB. Free memory was 159.4 MB in the beginning and 157.5 MB in the end (delta: 1.9 MB). Peak memory consumption was 1.9 MB. Max. memory is 7.1 GB. * RCFGBuilder took 466.80 ms. Allocated memory is still 205.0 MB. Free memory was 157.5 MB in the beginning and 133.7 MB in the end (delta: 23.8 MB). Peak memory consumption was 23.8 MB. Max. memory is 7.1 GB. * TraceAbstraction took 4666.24 ms. Allocated memory was 205.0 MB in the beginning and 276.8 MB in the end (delta: 71.8 MB). Free memory was 133.1 MB in the beginning and 154.7 MB in the end (delta: -21.6 MB). Peak memory consumption was 50.2 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 2.0s, 93 ProgramPointsBefore, 39 ProgramPointsAfterwards, 82 TransitionsBefore, 27 TransitionsAfterwards, 1822 CoEnabledTransitionPairs, 6 FixpointIterations, 15 TrivialSequentialCompositions, 39 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 9 ConcurrentYvCompositions, 1 ChoiceCompositions, 945 VarBasedMoverChecksPositive, 29 VarBasedMoverChecksNegative, 18 SemBasedMoverChecksPositive, 30 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.3s, 0 MoverChecksTotal, 2807 CheckedPairsTotal, 63 TotalNumberOfCompositions - PositiveResult [Line: 7]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 81 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 4.5s, OverallIterations: 11, TraceHistogramMax: 1, AutomataDifference: 0.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.1s, HoareTripleCheckerStatistics: 267 SDtfs, 328 SDslu, 473 SDs, 0 SdLazy, 205 SolverSat, 50 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 54 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=850occurred 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: 0.2s AutomataMinimizationTime, 11 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 169 NumberOfCodeBlocks, 169 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 158 ConstructedInterpolants, 0 QuantifiedInterpolants, 7360 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 11 InterpolantComputations, 11 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...