/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/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-VariableLbe-McrStrategy.epf -i ../../../trunk/examples/svcomp/pthread-wmm/thin000_tso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-b981219 [2020-04-18 15:45:41,647 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-04-18 15:45:41,649 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-04-18 15:45:41,667 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-04-18 15:45:41,668 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-04-18 15:45:41,670 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-04-18 15:45:41,672 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-04-18 15:45:41,684 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-04-18 15:45:41,685 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-04-18 15:45:41,686 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-04-18 15:45:41,687 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-04-18 15:45:41,688 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-04-18 15:45:41,688 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-04-18 15:45:41,689 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-04-18 15:45:41,692 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-04-18 15:45:41,694 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-04-18 15:45:41,695 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-04-18 15:45:41,699 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-04-18 15:45:41,700 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-04-18 15:45:41,703 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-04-18 15:45:41,704 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-04-18 15:45:41,705 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-04-18 15:45:41,706 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-04-18 15:45:41,707 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-04-18 15:45:41,709 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-04-18 15:45:41,709 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-04-18 15:45:41,709 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-04-18 15:45:41,710 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-04-18 15:45:41,711 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-04-18 15:45:41,711 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-04-18 15:45:41,712 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-04-18 15:45:41,712 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-04-18 15:45:41,713 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-04-18 15:45:41,714 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-04-18 15:45:41,715 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-04-18 15:45:41,715 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-04-18 15:45:41,716 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-04-18 15:45:41,716 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-04-18 15:45:41,716 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-04-18 15:45:41,717 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-04-18 15:45:41,718 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-04-18 15:45:41,719 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-VariableLbe-McrStrategy.epf [2020-04-18 15:45:41,734 INFO L113 SettingsManager]: Loading preferences was successful [2020-04-18 15:45:41,735 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-04-18 15:45:41,736 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-04-18 15:45:41,736 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-04-18 15:45:41,736 INFO L138 SettingsManager]: * Use SBE=true [2020-04-18 15:45:41,736 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-04-18 15:45:41,737 INFO L138 SettingsManager]: * sizeof long=4 [2020-04-18 15:45:41,737 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-04-18 15:45:41,737 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-04-18 15:45:41,737 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-04-18 15:45:41,737 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-04-18 15:45:41,738 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-04-18 15:45:41,738 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-04-18 15:45:41,738 INFO L138 SettingsManager]: * sizeof long double=12 [2020-04-18 15:45:41,738 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-04-18 15:45:41,738 INFO L138 SettingsManager]: * Use constant arrays=true [2020-04-18 15:45:41,738 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-04-18 15:45:41,739 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-04-18 15:45:41,739 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-04-18 15:45:41,739 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-04-18 15:45:41,739 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-04-18 15:45:41,740 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-04-18 15:45:41,740 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-04-18 15:45:41,740 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-04-18 15:45:41,740 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-04-18 15:45:41,740 INFO L138 SettingsManager]: * Trace refinement strategy=MCR [2020-04-18 15:45:41,741 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-04-18 15:45:41,741 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=VARIABLE_BASED_MOVER_CHECK [2020-04-18 15:45:41,741 INFO L138 SettingsManager]: * Trace refinement strategy used in MCR=CAMEL [2020-04-18 15:45:41,741 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-04-18 15:45:41,741 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-04-18 15:45:42,029 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-04-18 15:45:42,041 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-04-18 15:45:42,045 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-04-18 15:45:42,047 INFO L271 PluginConnector]: Initializing CDTParser... [2020-04-18 15:45:42,047 INFO L275 PluginConnector]: CDTParser initialized [2020-04-18 15:45:42,048 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/thin000_tso.opt.i [2020-04-18 15:45:42,118 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/972518708/1af56a1282554e9ba0add3bf7491fcf6/FLAG9d2d73973 [2020-04-18 15:45:42,642 INFO L306 CDTParser]: Found 1 translation units. [2020-04-18 15:45:42,645 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/thin000_tso.opt.i [2020-04-18 15:45:42,658 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/972518708/1af56a1282554e9ba0add3bf7491fcf6/FLAG9d2d73973 [2020-04-18 15:45:42,946 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/972518708/1af56a1282554e9ba0add3bf7491fcf6 [2020-04-18 15:45:42,957 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-04-18 15:45:42,980 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-04-18 15:45:42,982 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-04-18 15:45:42,982 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-04-18 15:45:42,985 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-04-18 15:45:42,986 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.04 03:45:42" (1/1) ... [2020-04-18 15:45:42,989 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@9acb2b6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 03:45:42, skipping insertion in model container [2020-04-18 15:45:42,989 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.04 03:45:42" (1/1) ... [2020-04-18 15:45:42,995 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-04-18 15:45:43,050 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-04-18 15:45:43,609 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-04-18 15:45:43,623 INFO L203 MainTranslator]: Completed pre-run [2020-04-18 15:45:43,696 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-04-18 15:45:43,781 INFO L208 MainTranslator]: Completed translation [2020-04-18 15:45:43,782 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 03:45:43 WrapperNode [2020-04-18 15:45:43,782 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-04-18 15:45:43,783 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-04-18 15:45:43,784 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-04-18 15:45:43,784 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-04-18 15:45:43,794 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 03:45:43" (1/1) ... [2020-04-18 15:45:43,809 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 03:45:43" (1/1) ... [2020-04-18 15:45:43,828 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-04-18 15:45:43,829 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-04-18 15:45:43,829 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-04-18 15:45:43,829 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-04-18 15:45:43,836 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 03:45:43" (1/1) ... [2020-04-18 15:45:43,836 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 03:45:43" (1/1) ... [2020-04-18 15:45:43,839 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 03:45:43" (1/1) ... [2020-04-18 15:45:43,839 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 03:45:43" (1/1) ... [2020-04-18 15:45:43,846 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 03:45:43" (1/1) ... [2020-04-18 15:45:43,848 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 03:45:43" (1/1) ... [2020-04-18 15:45:43,850 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 03:45:43" (1/1) ... [2020-04-18 15:45:43,852 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-04-18 15:45:43,853 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-04-18 15:45:43,853 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-04-18 15:45:43,853 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-04-18 15:45:43,854 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 03:45:43" (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 [2020-04-18 15:45:43,924 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-04-18 15:45:43,924 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-04-18 15:45:43,925 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-04-18 15:45:43,925 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-04-18 15:45:43,925 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-04-18 15:45:43,925 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-04-18 15:45:43,925 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-04-18 15:45:43,925 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-04-18 15:45:43,926 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-04-18 15:45:43,926 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-04-18 15:45:43,926 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-04-18 15:45:43,927 WARN L205 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-04-18 15:45:44,286 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-04-18 15:45:44,287 INFO L295 CfgBuilder]: Removed 8 assume(true) statements. [2020-04-18 15:45:44,290 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.04 03:45:44 BoogieIcfgContainer [2020-04-18 15:45:44,291 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-04-18 15:45:44,292 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-04-18 15:45:44,292 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-04-18 15:45:44,295 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-04-18 15:45:44,296 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.04 03:45:42" (1/3) ... [2020-04-18 15:45:44,296 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1fd81656 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.04 03:45:44, skipping insertion in model container [2020-04-18 15:45:44,297 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 03:45:43" (2/3) ... [2020-04-18 15:45:44,297 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1fd81656 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.04 03:45:44, skipping insertion in model container [2020-04-18 15:45:44,297 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.04 03:45:44" (3/3) ... [2020-04-18 15:45:44,299 INFO L109 eAbstractionObserver]: Analyzing ICFG thin000_tso.opt.i [2020-04-18 15:45:44,309 WARN L146 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-04-18 15:45:44,309 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-04-18 15:45:44,315 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-04-18 15:45:44,316 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-04-18 15:45:44,338 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:45:44,338 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:45:44,339 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:45:44,339 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:45:44,340 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:45:44,340 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:45:44,340 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:45:44,341 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:45:44,341 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:45:44,341 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:45:44,342 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:45:44,342 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:45:44,345 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:45:44,346 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:45:44,346 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:45:44,346 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:45:44,353 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:45:44,353 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:45:44,354 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:45:44,354 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:45:44,372 INFO L251 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2020-04-18 15:45:44,390 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-04-18 15:45:44,391 INFO L376 AbstractCegarLoop]: Hoare is true [2020-04-18 15:45:44,391 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-04-18 15:45:44,391 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-04-18 15:45:44,391 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-04-18 15:45:44,391 INFO L380 AbstractCegarLoop]: Difference is false [2020-04-18 15:45:44,392 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-04-18 15:45:44,392 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-04-18 15:45:44,409 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 61 places, 56 transitions, 122 flow [2020-04-18 15:45:44,411 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 61 places, 56 transitions, 122 flow [2020-04-18 15:45:44,457 INFO L129 PetriNetUnfolder]: 2/54 cut-off events. [2020-04-18 15:45:44,458 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-04-18 15:45:44,464 INFO L80 FinitePrefix]: Finished finitePrefix Result has 61 conditions, 54 events. 2/54 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 32 event pairs, 0 based on Foata normal form. 0/51 useless extension candidates. Maximal degree in co-relation 41. Up to 2 conditions per place. [2020-04-18 15:45:44,468 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 61 places, 56 transitions, 122 flow [2020-04-18 15:45:44,493 INFO L129 PetriNetUnfolder]: 2/54 cut-off events. [2020-04-18 15:45:44,494 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-04-18 15:45:44,494 INFO L80 FinitePrefix]: Finished finitePrefix Result has 61 conditions, 54 events. 2/54 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 32 event pairs, 0 based on Foata normal form. 0/51 useless extension candidates. Maximal degree in co-relation 41. Up to 2 conditions per place. [2020-04-18 15:45:44,498 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 672 [2020-04-18 15:45:44,499 INFO L182 etLargeBlockEncoding]: Variable Check. [2020-04-18 15:45:45,769 INFO L206 etLargeBlockEncoding]: Checked pairs total: 1165 [2020-04-18 15:45:45,769 INFO L214 etLargeBlockEncoding]: Total number of compositions: 48 [2020-04-18 15:45:45,773 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 22 places, 15 transitions, 40 flow [2020-04-18 15:45:45,786 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 74 states. [2020-04-18 15:45:45,788 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states. [2020-04-18 15:45:45,795 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2020-04-18 15:45:45,795 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 15:45:45,796 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2020-04-18 15:45:45,796 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 15:45:45,802 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 15:45:45,803 INFO L82 PathProgramCache]: Analyzing trace with hash 1988358065, now seen corresponding path program 1 times [2020-04-18 15:45:45,819 INFO L163 FreeRefinementEngine]: Executing refinement strategy MCR [2020-04-18 15:45:45,820 INFO L354 FreeRefinementEngine]: Using trace check StrategyModuleMcr [1009058903] [2020-04-18 15:45:45,835 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 15:45:45,846 INFO L259 McrAutomatonBuilder]: Finished intersection with 7 states and 6 transitions. [2020-04-18 15:45:45,848 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states. [2020-04-18 15:45:45,848 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2020-04-18 15:45:45,849 INFO L105 Mcr]: ---- MCR iteration 0 ---- [2020-04-18 15:45:45,849 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 15:45:45,849 INFO L82 PathProgramCache]: Analyzing trace with hash 1988358065, now seen corresponding path program 2 times [2020-04-18 15:45:45,853 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 15:45:45,853 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2000013938] [2020-04-18 15:45:45,854 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 15:45:45,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 15:45:46,068 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 15:45:46,068 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2000013938] [2020-04-18 15:45:46,069 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 15:45:46,070 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-04-18 15:45:46,072 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 15:45:46,075 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 15:45:46,078 INFO L259 McrAutomatonBuilder]: Finished intersection with 7 states and 6 transitions. [2020-04-18 15:45:46,078 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 15:45:46,091 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 0 times. [2020-04-18 15:45:46,095 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-04-18 15:45:46,096 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-04-18 15:45:46,098 INFO L87 Difference]: Start difference. First operand 7 states. Second operand 3 states. [2020-04-18 15:45:46,102 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 15:45:46,102 INFO L93 Difference]: Finished difference Result 7 states and 6 transitions. [2020-04-18 15:45:46,103 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states and 6 transitions. [2020-04-18 15:45:46,103 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-04-18 15:45:46,104 INFO L354 FreeRefinementEngine]: Using interpolant generator StrategyModuleMcr [1009058903] [2020-04-18 15:45:46,105 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-04-18 15:45:46,105 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [1] total 1 [2020-04-18 15:45:46,105 INFO L156 tionRefinementEngine]: Using interpolant automaton builder StrategyModuleMcr [1009058903] [2020-04-18 15:45:46,107 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-04-18 15:45:46,107 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy MCR [2020-04-18 15:45:46,112 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-04-18 15:45:46,113 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-04-18 15:45:46,113 INFO L87 Difference]: Start difference. First operand 74 states. Second operand 3 states. [2020-04-18 15:45:46,137 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 15:45:46,137 INFO L93 Difference]: Finished difference Result 70 states and 149 transitions. [2020-04-18 15:45:46,138 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-04-18 15:45:46,139 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 6 [2020-04-18 15:45:46,141 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 15:45:46,160 INFO L225 Difference]: With dead ends: 70 [2020-04-18 15:45:46,161 INFO L226 Difference]: Without dead ends: 54 [2020-04-18 15:45:46,171 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-04-18 15:45:46,194 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2020-04-18 15:45:46,221 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 54. [2020-04-18 15:45:46,222 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 54 states. [2020-04-18 15:45:46,227 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 109 transitions. [2020-04-18 15:45:46,229 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 109 transitions. Word has length 6 [2020-04-18 15:45:46,230 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 15:45:46,233 INFO L479 AbstractCegarLoop]: Abstraction has 54 states and 109 transitions. [2020-04-18 15:45:46,233 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-04-18 15:45:46,233 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 109 transitions. [2020-04-18 15:45:46,234 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-04-18 15:45:46,241 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 15:45:46,241 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2020-04-18 15:45:46,241 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 15:45:46,241 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 15:45:46,241 INFO L82 PathProgramCache]: Analyzing trace with hash 1509525162, now seen corresponding path program 1 times [2020-04-18 15:45:46,242 INFO L163 FreeRefinementEngine]: Executing refinement strategy MCR [2020-04-18 15:45:46,242 INFO L354 FreeRefinementEngine]: Using trace check StrategyModuleMcr [1310653992] [2020-04-18 15:45:46,243 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 15:45:46,244 INFO L259 McrAutomatonBuilder]: Finished intersection with 10 states and 11 transitions. [2020-04-18 15:45:46,244 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states. [2020-04-18 15:45:46,245 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-04-18 15:45:46,245 INFO L105 Mcr]: ---- MCR iteration 0 ---- [2020-04-18 15:45:46,245 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 15:45:46,245 INFO L82 PathProgramCache]: Analyzing trace with hash 1509525162, now seen corresponding path program 2 times [2020-04-18 15:45:46,245 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 15:45:46,246 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [411890992] [2020-04-18 15:45:46,246 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 15:45:46,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 15:45:46,316 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 15:45:46,317 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [411890992] [2020-04-18 15:45:46,317 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 15:45:46,317 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-04-18 15:45:46,317 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 15:45:46,318 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 15:45:46,319 INFO L259 McrAutomatonBuilder]: Finished intersection with 9 states and 9 transitions. [2020-04-18 15:45:46,320 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 15:45:46,327 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 0 times. [2020-04-18 15:45:46,328 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-04-18 15:45:46,328 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-04-18 15:45:46,328 INFO L87 Difference]: Start difference. First operand 10 states. Second operand 3 states. [2020-04-18 15:45:46,329 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 15:45:46,329 INFO L93 Difference]: Finished difference Result 10 states and 11 transitions. [2020-04-18 15:45:46,329 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 11 transitions. [2020-04-18 15:45:46,330 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-04-18 15:45:46,331 INFO L354 FreeRefinementEngine]: Using interpolant generator StrategyModuleMcr [1310653992] [2020-04-18 15:45:46,331 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-04-18 15:45:46,332 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [1] total 1 [2020-04-18 15:45:46,332 INFO L156 tionRefinementEngine]: Using interpolant automaton builder StrategyModuleMcr [1310653992] [2020-04-18 15:45:46,332 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-04-18 15:45:46,333 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy MCR [2020-04-18 15:45:46,333 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-04-18 15:45:46,333 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-04-18 15:45:46,333 INFO L87 Difference]: Start difference. First operand 54 states and 109 transitions. Second operand 3 states. [2020-04-18 15:45:46,340 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 15:45:46,340 INFO L93 Difference]: Finished difference Result 51 states and 101 transitions. [2020-04-18 15:45:46,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-04-18 15:45:46,342 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 7 [2020-04-18 15:45:46,342 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 15:45:46,343 INFO L225 Difference]: With dead ends: 51 [2020-04-18 15:45:46,343 INFO L226 Difference]: Without dead ends: 51 [2020-04-18 15:45:46,345 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-04-18 15:45:46,346 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2020-04-18 15:45:46,351 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 51. [2020-04-18 15:45:46,351 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 51 states. [2020-04-18 15:45:46,352 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 101 transitions. [2020-04-18 15:45:46,352 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 101 transitions. Word has length 7 [2020-04-18 15:45:46,352 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 15:45:46,353 INFO L479 AbstractCegarLoop]: Abstraction has 51 states and 101 transitions. [2020-04-18 15:45:46,353 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-04-18 15:45:46,353 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 101 transitions. [2020-04-18 15:45:46,353 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-04-18 15:45:46,353 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 15:45:46,353 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 15:45:46,354 INFO L427 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 15:45:46,354 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 15:45:46,354 INFO L82 PathProgramCache]: Analyzing trace with hash -449361261, now seen corresponding path program 1 times [2020-04-18 15:45:46,354 INFO L163 FreeRefinementEngine]: Executing refinement strategy MCR [2020-04-18 15:45:46,355 INFO L354 FreeRefinementEngine]: Using trace check StrategyModuleMcr [14049652] [2020-04-18 15:45:46,355 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 15:45:46,356 INFO L259 McrAutomatonBuilder]: Finished intersection with 18 states and 28 transitions. [2020-04-18 15:45:46,356 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states. [2020-04-18 15:45:46,357 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-04-18 15:45:46,357 INFO L105 Mcr]: ---- MCR iteration 0 ---- [2020-04-18 15:45:46,357 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 15:45:46,357 INFO L82 PathProgramCache]: Analyzing trace with hash -449360091, now seen corresponding path program 2 times [2020-04-18 15:45:46,358 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 15:45:46,358 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [329537635] [2020-04-18 15:45:46,358 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 15:45:46,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 15:45:46,416 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 15:45:46,416 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [329537635] [2020-04-18 15:45:46,417 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 15:45:46,417 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-04-18 15:45:46,417 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 15:45:46,418 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 15:45:46,419 INFO L259 McrAutomatonBuilder]: Finished intersection with 10 states and 10 transitions. [2020-04-18 15:45:46,419 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 15:45:46,426 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 0 times. [2020-04-18 15:45:46,426 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-04-18 15:45:46,426 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-04-18 15:45:46,426 INFO L87 Difference]: Start difference. First operand 18 states. Second operand 3 states. [2020-04-18 15:45:46,435 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 15:45:46,435 INFO L93 Difference]: Finished difference Result 20 states and 29 transitions. [2020-04-18 15:45:46,435 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 29 transitions. [2020-04-18 15:45:46,436 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-04-18 15:45:46,436 INFO L105 Mcr]: ---- MCR iteration 1 ---- [2020-04-18 15:45:46,436 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 15:45:46,437 INFO L82 PathProgramCache]: Analyzing trace with hash -449361261, now seen corresponding path program 3 times [2020-04-18 15:45:46,437 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 15:45:46,438 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1195378818] [2020-04-18 15:45:46,439 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 15:45:46,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 15:45:46,512 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 15:45:46,512 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1195378818] [2020-04-18 15:45:46,513 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 15:45:46,513 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-04-18 15:45:46,513 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 15:45:46,514 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 15:45:46,515 INFO L259 McrAutomatonBuilder]: Finished intersection with 15 states and 21 transitions. [2020-04-18 15:45:46,515 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 15:45:46,526 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 0 times. [2020-04-18 15:45:46,526 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-04-18 15:45:46,526 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-04-18 15:45:46,527 INFO L87 Difference]: Start difference. First operand 20 states and 29 transitions. Second operand 4 states. [2020-04-18 15:45:46,539 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 15:45:46,540 INFO L93 Difference]: Finished difference Result 20 states and 29 transitions. [2020-04-18 15:45:46,540 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 29 transitions. [2020-04-18 15:45:46,540 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-04-18 15:45:46,541 INFO L354 FreeRefinementEngine]: Using interpolant generator StrategyModuleMcr [14049652] [2020-04-18 15:45:46,541 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-04-18 15:45:46,541 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [2] total 2 [2020-04-18 15:45:46,541 INFO L156 tionRefinementEngine]: Using interpolant automaton builder StrategyModuleMcr [14049652] [2020-04-18 15:45:46,542 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-04-18 15:45:46,542 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy MCR [2020-04-18 15:45:46,542 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-04-18 15:45:46,542 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-04-18 15:45:46,543 INFO L87 Difference]: Start difference. First operand 51 states and 101 transitions. Second operand 5 states. [2020-04-18 15:45:46,576 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 15:45:46,576 INFO L93 Difference]: Finished difference Result 60 states and 113 transitions. [2020-04-18 15:45:46,578 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-04-18 15:45:46,578 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 8 [2020-04-18 15:45:46,578 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 15:45:46,579 INFO L225 Difference]: With dead ends: 60 [2020-04-18 15:45:46,579 INFO L226 Difference]: Without dead ends: 36 [2020-04-18 15:45:46,580 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-04-18 15:45:46,580 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2020-04-18 15:45:46,584 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 36. [2020-04-18 15:45:46,584 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2020-04-18 15:45:46,584 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 63 transitions. [2020-04-18 15:45:46,585 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 63 transitions. Word has length 8 [2020-04-18 15:45:46,585 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 15:45:46,585 INFO L479 AbstractCegarLoop]: Abstraction has 36 states and 63 transitions. [2020-04-18 15:45:46,585 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-04-18 15:45:46,585 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 63 transitions. [2020-04-18 15:45:46,586 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-04-18 15:45:46,586 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 15:45:46,586 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 15:45:46,586 INFO L427 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 15:45:46,586 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 15:45:46,587 INFO L82 PathProgramCache]: Analyzing trace with hash -1014872071, now seen corresponding path program 1 times [2020-04-18 15:45:46,587 INFO L163 FreeRefinementEngine]: Executing refinement strategy MCR [2020-04-18 15:45:46,587 INFO L354 FreeRefinementEngine]: Using trace check StrategyModuleMcr [46912036] [2020-04-18 15:45:46,587 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 15:45:46,588 INFO L259 McrAutomatonBuilder]: Finished intersection with 26 states and 45 transitions. [2020-04-18 15:45:46,588 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states. [2020-04-18 15:45:46,589 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-04-18 15:45:46,589 INFO L105 Mcr]: ---- MCR iteration 0 ---- [2020-04-18 15:45:46,589 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 15:45:46,590 INFO L82 PathProgramCache]: Analyzing trace with hash -1045260811, now seen corresponding path program 2 times [2020-04-18 15:45:46,590 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 15:45:46,592 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [231624891] [2020-04-18 15:45:46,592 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 15:45:46,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 15:45:46,649 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 15:45:46,649 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [231624891] [2020-04-18 15:45:46,650 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 15:45:46,650 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-04-18 15:45:46,650 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 15:45:46,651 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 15:45:46,652 INFO L259 McrAutomatonBuilder]: Finished intersection with 11 states and 11 transitions. [2020-04-18 15:45:46,652 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 15:45:46,655 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 0 times. [2020-04-18 15:45:46,656 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-04-18 15:45:46,656 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-04-18 15:45:46,656 INFO L87 Difference]: Start difference. First operand 26 states. Second operand 3 states. [2020-04-18 15:45:46,661 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 15:45:46,661 INFO L93 Difference]: Finished difference Result 30 states and 49 transitions. [2020-04-18 15:45:46,661 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 49 transitions. [2020-04-18 15:45:46,661 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-04-18 15:45:46,663 INFO L105 Mcr]: ---- MCR iteration 1 ---- [2020-04-18 15:45:46,664 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 15:45:46,664 INFO L82 PathProgramCache]: Analyzing trace with hash -1045297081, now seen corresponding path program 3 times [2020-04-18 15:45:46,664 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 15:45:46,665 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1827701804] [2020-04-18 15:45:46,665 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 15:45:46,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 15:45:46,730 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 15:45:46,731 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1827701804] [2020-04-18 15:45:46,731 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 15:45:46,731 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-04-18 15:45:46,732 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 15:45:46,732 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 15:45:46,734 INFO L259 McrAutomatonBuilder]: Finished intersection with 18 states and 26 transitions. [2020-04-18 15:45:46,734 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 15:45:46,745 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 0 times. [2020-04-18 15:45:46,745 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-04-18 15:45:46,746 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-04-18 15:45:46,746 INFO L87 Difference]: Start difference. First operand 30 states and 49 transitions. Second operand 4 states. [2020-04-18 15:45:46,762 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 15:45:46,763 INFO L93 Difference]: Finished difference Result 33 states and 51 transitions. [2020-04-18 15:45:46,763 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 51 transitions. [2020-04-18 15:45:46,763 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-04-18 15:45:46,764 INFO L105 Mcr]: ---- MCR iteration 2 ---- [2020-04-18 15:45:46,764 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 15:45:46,764 INFO L82 PathProgramCache]: Analyzing trace with hash -1014872071, now seen corresponding path program 4 times [2020-04-18 15:45:46,764 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 15:45:46,765 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [546401100] [2020-04-18 15:45:46,765 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 15:45:46,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 15:45:46,815 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 15:45:46,815 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [546401100] [2020-04-18 15:45:46,816 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 15:45:46,816 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-04-18 15:45:46,816 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 15:45:46,817 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 15:45:46,818 INFO L259 McrAutomatonBuilder]: Finished intersection with 17 states and 23 transitions. [2020-04-18 15:45:46,819 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 15:45:46,890 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 3 times. [2020-04-18 15:45:46,890 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-04-18 15:45:46,891 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2020-04-18 15:45:46,891 INFO L87 Difference]: Start difference. First operand 33 states and 51 transitions. Second operand 5 states. [2020-04-18 15:45:46,903 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 15:45:46,903 INFO L93 Difference]: Finished difference Result 33 states and 51 transitions. [2020-04-18 15:45:46,903 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 51 transitions. [2020-04-18 15:45:46,904 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-04-18 15:45:46,904 INFO L354 FreeRefinementEngine]: Using interpolant generator StrategyModuleMcr [46912036] [2020-04-18 15:45:46,905 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-04-18 15:45:46,905 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [2] total 2 [2020-04-18 15:45:46,905 INFO L156 tionRefinementEngine]: Using interpolant automaton builder StrategyModuleMcr [46912036] [2020-04-18 15:45:46,905 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-04-18 15:45:46,905 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy MCR [2020-04-18 15:45:46,906 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-04-18 15:45:46,906 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2020-04-18 15:45:46,906 INFO L87 Difference]: Start difference. First operand 36 states and 63 transitions. Second operand 8 states. [2020-04-18 15:45:46,956 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 15:45:46,956 INFO L93 Difference]: Finished difference Result 30 states and 50 transitions. [2020-04-18 15:45:46,957 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-04-18 15:45:46,957 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 9 [2020-04-18 15:45:46,957 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 15:45:46,957 INFO L225 Difference]: With dead ends: 30 [2020-04-18 15:45:46,957 INFO L226 Difference]: Without dead ends: 0 [2020-04-18 15:45:46,958 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2020-04-18 15:45:46,958 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-04-18 15:45:46,958 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-04-18 15:45:46,958 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-04-18 15:45:46,959 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-04-18 15:45:46,959 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 9 [2020-04-18 15:45:46,959 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 15:45:46,959 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-04-18 15:45:46,959 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-04-18 15:45:46,959 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-04-18 15:45:46,959 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-04-18 15:45:46,963 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.04 03:45:46 BasicIcfg [2020-04-18 15:45:46,963 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-04-18 15:45:46,966 INFO L168 Benchmark]: Toolchain (without parser) took 4006.55 ms. Allocated memory was 139.5 MB in the beginning and 244.3 MB in the end (delta: 104.9 MB). Free memory was 102.5 MB in the beginning and 129.0 MB in the end (delta: -26.6 MB). Peak memory consumption was 78.3 MB. Max. memory is 7.1 GB. [2020-04-18 15:45:46,967 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 139.5 MB. Free memory was 122.5 MB in the beginning and 122.3 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. [2020-04-18 15:45:46,968 INFO L168 Benchmark]: CACSL2BoogieTranslator took 800.93 ms. Allocated memory was 139.5 MB in the beginning and 202.9 MB in the end (delta: 63.4 MB). Free memory was 100.6 MB in the beginning and 160.3 MB in the end (delta: -59.8 MB). Peak memory consumption was 25.2 MB. Max. memory is 7.1 GB. [2020-04-18 15:45:46,969 INFO L168 Benchmark]: Boogie Procedure Inliner took 45.52 ms. Allocated memory is still 202.9 MB. Free memory was 160.3 MB in the beginning and 157.8 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.6 MB. Max. memory is 7.1 GB. [2020-04-18 15:45:46,970 INFO L168 Benchmark]: Boogie Preprocessor took 23.86 ms. Allocated memory is still 202.9 MB. Free memory was 157.8 MB in the beginning and 156.5 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. [2020-04-18 15:45:46,971 INFO L168 Benchmark]: RCFGBuilder took 437.67 ms. Allocated memory is still 202.9 MB. Free memory was 156.5 MB in the beginning and 136.6 MB in the end (delta: 19.9 MB). Peak memory consumption was 19.9 MB. Max. memory is 7.1 GB. [2020-04-18 15:45:46,971 INFO L168 Benchmark]: TraceAbstraction took 2671.60 ms. Allocated memory was 202.9 MB in the beginning and 244.3 MB in the end (delta: 41.4 MB). Free memory was 136.6 MB in the beginning and 129.0 MB in the end (delta: 7.5 MB). Peak memory consumption was 49.0 MB. Max. memory is 7.1 GB. [2020-04-18 15:45:46,976 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 139.5 MB. Free memory was 122.5 MB in the beginning and 122.3 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 800.93 ms. Allocated memory was 139.5 MB in the beginning and 202.9 MB in the end (delta: 63.4 MB). Free memory was 100.6 MB in the beginning and 160.3 MB in the end (delta: -59.8 MB). Peak memory consumption was 25.2 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 45.52 ms. Allocated memory is still 202.9 MB. Free memory was 160.3 MB in the beginning and 157.8 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.6 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 23.86 ms. Allocated memory is still 202.9 MB. Free memory was 157.8 MB in the beginning and 156.5 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 437.67 ms. Allocated memory is still 202.9 MB. Free memory was 156.5 MB in the beginning and 136.6 MB in the end (delta: 19.9 MB). Peak memory consumption was 19.9 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2671.60 ms. Allocated memory was 202.9 MB in the beginning and 244.3 MB in the end (delta: 41.4 MB). Free memory was 136.6 MB in the beginning and 129.0 MB in the end (delta: 7.5 MB). Peak memory consumption was 49.0 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 1.3s, 61 ProgramPointsBefore, 22 ProgramPointsAfterwards, 56 TransitionsBefore, 15 TransitionsAfterwards, 672 CoEnabledTransitionPairs, 6 FixpointIterations, 13 TrivialSequentialCompositions, 27 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 8 ConcurrentYvCompositions, 2 ChoiceCompositions, 361 VarBasedMoverChecksPositive, 17 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 0 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 0 MoverChecksTotal, 1165 CheckedPairsTotal, 48 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 3 procedures, 55 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 2.5s, OverallIterations: 4, TraceHistogramMax: 1, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.3s, HoareTripleCheckerStatistics: 45 SDtfs, 57 SDslu, 53 SDs, 0 SdLazy, 20 SolverSat, 6 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 61 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=74occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: No data available, 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...