/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-NoLbe.epf -i ../../../trunk/examples/svcomp/pthread-wmm/safe014_tso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-fae578e [2019-12-19 04:43:49,781 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-19 04:43:49,783 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-19 04:43:49,796 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-19 04:43:49,796 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-19 04:43:49,797 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-19 04:43:49,799 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-19 04:43:49,800 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-19 04:43:49,802 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-19 04:43:49,803 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-19 04:43:49,804 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-19 04:43:49,805 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-19 04:43:49,806 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-19 04:43:49,807 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-19 04:43:49,808 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-19 04:43:49,809 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-19 04:43:49,810 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-19 04:43:49,811 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-19 04:43:49,812 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-19 04:43:49,815 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-19 04:43:49,816 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-19 04:43:49,817 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-19 04:43:49,819 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-19 04:43:49,819 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-19 04:43:49,822 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-19 04:43:49,822 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-19 04:43:49,822 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-19 04:43:49,823 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-19 04:43:49,824 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-19 04:43:49,825 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-19 04:43:49,825 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-19 04:43:49,826 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-19 04:43:49,826 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-19 04:43:49,827 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-19 04:43:49,828 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-19 04:43:49,828 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-19 04:43:49,829 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-19 04:43:49,829 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-19 04:43:49,829 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-19 04:43:49,830 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-19 04:43:49,831 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-19 04:43:49,832 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-NoLbe.epf [2019-12-19 04:43:49,846 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-19 04:43:49,847 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-19 04:43:49,848 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-19 04:43:49,848 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-19 04:43:49,848 INFO L138 SettingsManager]: * Use SBE=true [2019-12-19 04:43:49,849 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-19 04:43:49,849 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-19 04:43:49,849 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-19 04:43:49,849 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-19 04:43:49,849 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-19 04:43:49,850 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-19 04:43:49,850 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-19 04:43:49,850 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-19 04:43:49,850 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-19 04:43:49,850 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-19 04:43:49,851 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-19 04:43:49,851 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-19 04:43:49,851 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-19 04:43:49,851 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-19 04:43:49,851 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-19 04:43:49,852 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-19 04:43:49,853 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-19 04:43:49,853 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-19 04:43:49,853 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-19 04:43:49,853 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-19 04:43:49,853 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-12-19 04:43:49,854 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-19 04:43:49,854 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2019-12-19 04:43:49,855 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-19 04:43:49,855 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-19 04:43:50,157 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-19 04:43:50,170 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-19 04:43:50,173 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-19 04:43:50,175 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-19 04:43:50,175 INFO L275 PluginConnector]: CDTParser initialized [2019-12-19 04:43:50,176 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe014_tso.oepc.i [2019-12-19 04:43:50,259 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c4ef569b2/9b2ae034601c4562aea42a3f278e8d6b/FLAG66071dd6d [2019-12-19 04:43:50,750 INFO L306 CDTParser]: Found 1 translation units. [2019-12-19 04:43:50,750 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe014_tso.oepc.i [2019-12-19 04:43:50,766 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c4ef569b2/9b2ae034601c4562aea42a3f278e8d6b/FLAG66071dd6d [2019-12-19 04:43:51,096 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c4ef569b2/9b2ae034601c4562aea42a3f278e8d6b [2019-12-19 04:43:51,105 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-19 04:43:51,107 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-12-19 04:43:51,108 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-19 04:43:51,109 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-19 04:43:51,112 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-19 04:43:51,113 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.12 04:43:51" (1/1) ... [2019-12-19 04:43:51,116 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3735381e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 04:43:51, skipping insertion in model container [2019-12-19 04:43:51,117 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.12 04:43:51" (1/1) ... [2019-12-19 04:43:51,124 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-19 04:43:51,185 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-19 04:43:51,672 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-19 04:43:51,684 INFO L203 MainTranslator]: Completed pre-run [2019-12-19 04:43:51,735 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-19 04:43:51,824 INFO L208 MainTranslator]: Completed translation [2019-12-19 04:43:51,825 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 04:43:51 WrapperNode [2019-12-19 04:43:51,825 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-19 04:43:51,826 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-19 04:43:51,827 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-19 04:43:51,827 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-19 04:43:51,836 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 04:43:51" (1/1) ... [2019-12-19 04:43:51,862 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 04:43:51" (1/1) ... [2019-12-19 04:43:51,886 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-19 04:43:51,886 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-19 04:43:51,886 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-19 04:43:51,886 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-19 04:43:51,896 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 04:43:51" (1/1) ... [2019-12-19 04:43:51,896 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 04:43:51" (1/1) ... [2019-12-19 04:43:51,899 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 04:43:51" (1/1) ... [2019-12-19 04:43:51,900 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 04:43:51" (1/1) ... [2019-12-19 04:43:51,906 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 04:43:51" (1/1) ... [2019-12-19 04:43:51,909 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 04:43:51" (1/1) ... [2019-12-19 04:43:51,911 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 04:43:51" (1/1) ... [2019-12-19 04:43:51,914 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-19 04:43:51,915 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-19 04:43:51,915 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-19 04:43:51,915 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-19 04:43:51,916 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 04:43:51" (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 [2019-12-19 04:43:51,979 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-12-19 04:43:51,979 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2019-12-19 04:43:51,979 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-19 04:43:51,979 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-12-19 04:43:51,979 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2019-12-19 04:43:51,980 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2019-12-19 04:43:51,980 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2019-12-19 04:43:51,980 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2019-12-19 04:43:51,980 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2019-12-19 04:43:51,980 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2019-12-19 04:43:51,981 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2019-12-19 04:43:51,981 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-19 04:43:51,981 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-19 04:43:51,983 WARN L205 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2019-12-19 04:43:52,391 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-19 04:43:52,391 INFO L287 CfgBuilder]: Removed 6 assume(true) statements. [2019-12-19 04:43:52,392 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.12 04:43:52 BoogieIcfgContainer [2019-12-19 04:43:52,392 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-19 04:43:52,393 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-19 04:43:52,393 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-19 04:43:52,397 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-19 04:43:52,397 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.12 04:43:51" (1/3) ... [2019-12-19 04:43:52,398 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3e4c2988 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.12 04:43:52, skipping insertion in model container [2019-12-19 04:43:52,398 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 04:43:51" (2/3) ... [2019-12-19 04:43:52,399 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3e4c2988 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.12 04:43:52, skipping insertion in model container [2019-12-19 04:43:52,399 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.12 04:43:52" (3/3) ... [2019-12-19 04:43:52,401 INFO L109 eAbstractionObserver]: Analyzing ICFG safe014_tso.oepc.i [2019-12-19 04:43:52,410 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2019-12-19 04:43:52,411 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-19 04:43:52,418 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-12-19 04:43:52,419 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2019-12-19 04:43:52,450 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:43:52,450 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:43:52,451 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:43:52,451 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:43:52,451 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:43:52,452 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:43:52,452 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:43:52,452 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:43:52,454 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:43:52,454 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:43:52,455 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:43:52,455 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:43:52,455 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:43:52,456 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:43:52,457 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:43:52,457 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:43:52,457 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:43:52,458 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:43:52,462 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:43:52,463 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:43:52,464 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:43:52,464 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:43:52,469 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:43:52,470 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:43:52,470 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:43:52,470 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:43:52,473 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:43:52,473 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:43:52,473 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:43:52,474 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:43:52,490 INFO L249 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2019-12-19 04:43:52,512 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-19 04:43:52,513 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-19 04:43:52,513 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-19 04:43:52,513 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-19 04:43:52,513 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-19 04:43:52,513 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-19 04:43:52,514 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-19 04:43:52,514 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-19 04:43:52,526 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 63 places, 54 transitions [2019-12-19 04:43:52,617 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 1248 states. [2019-12-19 04:43:52,619 INFO L276 IsEmpty]: Start isEmpty. Operand 1248 states. [2019-12-19 04:43:52,636 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2019-12-19 04:43:52,636 INFO L403 BasicCegarLoop]: Found error trace [2019-12-19 04:43:52,638 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-19 04:43:52,638 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-19 04:43:52,644 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-19 04:43:52,645 INFO L82 PathProgramCache]: Analyzing trace with hash -83504505, now seen corresponding path program 1 times [2019-12-19 04:43:52,654 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-19 04:43:52,655 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [891382277] [2019-12-19 04:43:52,655 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-19 04:43:52,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-19 04:43:53,043 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-19 04:43:53,044 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [891382277] [2019-12-19 04:43:53,045 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-19 04:43:53,045 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-12-19 04:43:53,046 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [733314084] [2019-12-19 04:43:53,052 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-19 04:43:53,052 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-19 04:43:53,067 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-19 04:43:53,068 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-12-19 04:43:53,070 INFO L87 Difference]: Start difference. First operand 1248 states. Second operand 4 states. [2019-12-19 04:43:53,200 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-19 04:43:53,200 INFO L93 Difference]: Finished difference Result 1295 states and 3961 transitions. [2019-12-19 04:43:53,201 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-12-19 04:43:53,203 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 31 [2019-12-19 04:43:53,203 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-19 04:43:53,231 INFO L225 Difference]: With dead ends: 1295 [2019-12-19 04:43:53,231 INFO L226 Difference]: Without dead ends: 601 [2019-12-19 04:43:53,233 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-12-19 04:43:53,292 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 601 states. [2019-12-19 04:43:53,388 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 601 to 601. [2019-12-19 04:43:53,391 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 601 states. [2019-12-19 04:43:53,398 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 601 states to 601 states and 1776 transitions. [2019-12-19 04:43:53,399 INFO L78 Accepts]: Start accepts. Automaton has 601 states and 1776 transitions. Word has length 31 [2019-12-19 04:43:53,400 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-19 04:43:53,400 INFO L462 AbstractCegarLoop]: Abstraction has 601 states and 1776 transitions. [2019-12-19 04:43:53,400 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-19 04:43:53,400 INFO L276 IsEmpty]: Start isEmpty. Operand 601 states and 1776 transitions. [2019-12-19 04:43:53,403 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2019-12-19 04:43:53,403 INFO L403 BasicCegarLoop]: Found error trace [2019-12-19 04:43:53,404 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-19 04:43:53,404 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-19 04:43:53,404 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-19 04:43:53,405 INFO L82 PathProgramCache]: Analyzing trace with hash 288299186, now seen corresponding path program 1 times [2019-12-19 04:43:53,405 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-19 04:43:53,405 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1468899078] [2019-12-19 04:43:53,405 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-19 04:43:53,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-19 04:43:53,543 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-19 04:43:53,544 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1468899078] [2019-12-19 04:43:53,544 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-19 04:43:53,544 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-12-19 04:43:53,545 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [706323049] [2019-12-19 04:43:53,546 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-12-19 04:43:53,547 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-19 04:43:53,547 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-12-19 04:43:53,547 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-12-19 04:43:53,547 INFO L87 Difference]: Start difference. First operand 601 states and 1776 transitions. Second operand 5 states. [2019-12-19 04:43:53,627 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-19 04:43:53,627 INFO L93 Difference]: Finished difference Result 601 states and 1695 transitions. [2019-12-19 04:43:53,628 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-12-19 04:43:53,628 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 32 [2019-12-19 04:43:53,628 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-19 04:43:53,633 INFO L225 Difference]: With dead ends: 601 [2019-12-19 04:43:53,634 INFO L226 Difference]: Without dead ends: 538 [2019-12-19 04:43:53,635 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2019-12-19 04:43:53,638 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 538 states. [2019-12-19 04:43:53,649 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 538 to 538. [2019-12-19 04:43:53,649 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 538 states. [2019-12-19 04:43:53,652 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 538 states to 538 states and 1545 transitions. [2019-12-19 04:43:53,653 INFO L78 Accepts]: Start accepts. Automaton has 538 states and 1545 transitions. Word has length 32 [2019-12-19 04:43:53,653 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-19 04:43:53,653 INFO L462 AbstractCegarLoop]: Abstraction has 538 states and 1545 transitions. [2019-12-19 04:43:53,654 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-12-19 04:43:53,654 INFO L276 IsEmpty]: Start isEmpty. Operand 538 states and 1545 transitions. [2019-12-19 04:43:53,656 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2019-12-19 04:43:53,656 INFO L403 BasicCegarLoop]: Found error trace [2019-12-19 04:43:53,656 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-19 04:43:53,656 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-19 04:43:53,656 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-19 04:43:53,657 INFO L82 PathProgramCache]: Analyzing trace with hash -2025800424, now seen corresponding path program 1 times [2019-12-19 04:43:53,657 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-19 04:43:53,657 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1861989121] [2019-12-19 04:43:53,657 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-19 04:43:53,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-19 04:43:53,850 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-19 04:43:53,851 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1861989121] [2019-12-19 04:43:53,851 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-19 04:43:53,851 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-12-19 04:43:53,852 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1926980017] [2019-12-19 04:43:53,852 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-12-19 04:43:53,852 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-19 04:43:53,853 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-12-19 04:43:53,853 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2019-12-19 04:43:53,853 INFO L87 Difference]: Start difference. First operand 538 states and 1545 transitions. Second operand 6 states. [2019-12-19 04:43:53,947 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-19 04:43:53,947 INFO L93 Difference]: Finished difference Result 403 states and 1059 transitions. [2019-12-19 04:43:53,948 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-12-19 04:43:53,948 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 33 [2019-12-19 04:43:53,948 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-19 04:43:53,951 INFO L225 Difference]: With dead ends: 403 [2019-12-19 04:43:53,951 INFO L226 Difference]: Without dead ends: 349 [2019-12-19 04:43:53,952 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2019-12-19 04:43:53,954 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 349 states. [2019-12-19 04:43:53,961 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 349 to 349. [2019-12-19 04:43:53,961 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 349 states. [2019-12-19 04:43:53,963 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 349 states to 349 states and 915 transitions. [2019-12-19 04:43:53,963 INFO L78 Accepts]: Start accepts. Automaton has 349 states and 915 transitions. Word has length 33 [2019-12-19 04:43:53,963 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-19 04:43:53,964 INFO L462 AbstractCegarLoop]: Abstraction has 349 states and 915 transitions. [2019-12-19 04:43:53,964 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-12-19 04:43:53,964 INFO L276 IsEmpty]: Start isEmpty. Operand 349 states and 915 transitions. [2019-12-19 04:43:53,965 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2019-12-19 04:43:53,965 INFO L403 BasicCegarLoop]: Found error trace [2019-12-19 04:43:53,966 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-19 04:43:53,966 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-19 04:43:53,966 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-19 04:43:53,966 INFO L82 PathProgramCache]: Analyzing trace with hash 1679595576, now seen corresponding path program 1 times [2019-12-19 04:43:53,966 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-19 04:43:53,967 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1921416297] [2019-12-19 04:43:53,967 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-19 04:43:53,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-19 04:43:54,167 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-19 04:43:54,168 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1921416297] [2019-12-19 04:43:54,168 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-19 04:43:54,168 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-12-19 04:43:54,169 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [573353092] [2019-12-19 04:43:54,169 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-12-19 04:43:54,169 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-19 04:43:54,170 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-12-19 04:43:54,171 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-12-19 04:43:54,171 INFO L87 Difference]: Start difference. First operand 349 states and 915 transitions. Second operand 7 states. [2019-12-19 04:43:54,492 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-19 04:43:54,493 INFO L93 Difference]: Finished difference Result 565 states and 1500 transitions. [2019-12-19 04:43:54,493 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-12-19 04:43:54,494 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 34 [2019-12-19 04:43:54,495 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-19 04:43:54,498 INFO L225 Difference]: With dead ends: 565 [2019-12-19 04:43:54,499 INFO L226 Difference]: Without dead ends: 394 [2019-12-19 04:43:54,500 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2019-12-19 04:43:54,504 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 394 states. [2019-12-19 04:43:54,513 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 394 to 340. [2019-12-19 04:43:54,514 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 340 states. [2019-12-19 04:43:54,516 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 340 states to 340 states and 888 transitions. [2019-12-19 04:43:54,517 INFO L78 Accepts]: Start accepts. Automaton has 340 states and 888 transitions. Word has length 34 [2019-12-19 04:43:54,517 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-19 04:43:54,517 INFO L462 AbstractCegarLoop]: Abstraction has 340 states and 888 transitions. [2019-12-19 04:43:54,518 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-12-19 04:43:54,518 INFO L276 IsEmpty]: Start isEmpty. Operand 340 states and 888 transitions. [2019-12-19 04:43:54,519 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2019-12-19 04:43:54,519 INFO L403 BasicCegarLoop]: Found error trace [2019-12-19 04:43:54,519 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-19 04:43:54,520 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-19 04:43:54,520 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-19 04:43:54,521 INFO L82 PathProgramCache]: Analyzing trace with hash 1506347884, now seen corresponding path program 2 times [2019-12-19 04:43:54,521 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-19 04:43:54,522 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1158782783] [2019-12-19 04:43:54,522 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-19 04:43:54,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-19 04:43:54,768 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-19 04:43:54,768 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1158782783] [2019-12-19 04:43:54,768 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-19 04:43:54,768 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-12-19 04:43:54,769 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [290062054] [2019-12-19 04:43:54,769 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-12-19 04:43:54,769 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-19 04:43:54,769 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-12-19 04:43:54,770 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2019-12-19 04:43:54,770 INFO L87 Difference]: Start difference. First operand 340 states and 888 transitions. Second operand 8 states. [2019-12-19 04:43:54,895 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-19 04:43:54,895 INFO L93 Difference]: Finished difference Result 556 states and 1473 transitions. [2019-12-19 04:43:54,895 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-12-19 04:43:54,896 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 34 [2019-12-19 04:43:54,896 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-19 04:43:54,898 INFO L225 Difference]: With dead ends: 556 [2019-12-19 04:43:54,899 INFO L226 Difference]: Without dead ends: 334 [2019-12-19 04:43:54,899 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2019-12-19 04:43:54,901 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 334 states. [2019-12-19 04:43:54,907 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 334 to 325. [2019-12-19 04:43:54,907 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 325 states. [2019-12-19 04:43:54,909 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 325 states to 325 states and 846 transitions. [2019-12-19 04:43:54,909 INFO L78 Accepts]: Start accepts. Automaton has 325 states and 846 transitions. Word has length 34 [2019-12-19 04:43:54,909 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-19 04:43:54,910 INFO L462 AbstractCegarLoop]: Abstraction has 325 states and 846 transitions. [2019-12-19 04:43:54,910 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-12-19 04:43:54,910 INFO L276 IsEmpty]: Start isEmpty. Operand 325 states and 846 transitions. [2019-12-19 04:43:54,911 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2019-12-19 04:43:54,911 INFO L403 BasicCegarLoop]: Found error trace [2019-12-19 04:43:54,911 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-19 04:43:54,911 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-19 04:43:54,912 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-19 04:43:54,912 INFO L82 PathProgramCache]: Analyzing trace with hash 1833116096, now seen corresponding path program 3 times [2019-12-19 04:43:54,912 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-19 04:43:54,913 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [411825158] [2019-12-19 04:43:54,913 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-19 04:43:54,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-19 04:43:55,088 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-19 04:43:55,089 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [411825158] [2019-12-19 04:43:55,090 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-19 04:43:55,090 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-12-19 04:43:55,090 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1345522787] [2019-12-19 04:43:55,090 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-12-19 04:43:55,091 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-19 04:43:55,091 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-12-19 04:43:55,092 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2019-12-19 04:43:55,092 INFO L87 Difference]: Start difference. First operand 325 states and 846 transitions. Second operand 8 states. [2019-12-19 04:43:55,221 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-19 04:43:55,222 INFO L93 Difference]: Finished difference Result 487 states and 1305 transitions. [2019-12-19 04:43:55,222 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-12-19 04:43:55,222 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 34 [2019-12-19 04:43:55,223 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-19 04:43:55,226 INFO L225 Difference]: With dead ends: 487 [2019-12-19 04:43:55,226 INFO L226 Difference]: Without dead ends: 313 [2019-12-19 04:43:55,227 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2019-12-19 04:43:55,229 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 313 states. [2019-12-19 04:43:55,237 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 313 to 313. [2019-12-19 04:43:55,237 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 313 states. [2019-12-19 04:43:55,238 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 313 states to 313 states and 816 transitions. [2019-12-19 04:43:55,239 INFO L78 Accepts]: Start accepts. Automaton has 313 states and 816 transitions. Word has length 34 [2019-12-19 04:43:55,240 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-19 04:43:55,240 INFO L462 AbstractCegarLoop]: Abstraction has 313 states and 816 transitions. [2019-12-19 04:43:55,240 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-12-19 04:43:55,240 INFO L276 IsEmpty]: Start isEmpty. Operand 313 states and 816 transitions. [2019-12-19 04:43:55,241 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2019-12-19 04:43:55,241 INFO L403 BasicCegarLoop]: Found error trace [2019-12-19 04:43:55,242 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-19 04:43:55,242 INFO L410 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-19 04:43:55,242 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-19 04:43:55,242 INFO L82 PathProgramCache]: Analyzing trace with hash -1476702554, now seen corresponding path program 4 times [2019-12-19 04:43:55,243 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-19 04:43:55,243 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1855095809] [2019-12-19 04:43:55,243 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-19 04:43:55,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-19 04:43:55,379 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-19 04:43:55,380 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1855095809] [2019-12-19 04:43:55,380 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-19 04:43:55,380 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-12-19 04:43:55,380 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1112232587] [2019-12-19 04:43:55,381 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-12-19 04:43:55,381 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-19 04:43:55,381 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-12-19 04:43:55,382 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2019-12-19 04:43:55,382 INFO L87 Difference]: Start difference. First operand 313 states and 816 transitions. Second operand 8 states. [2019-12-19 04:43:55,456 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-19 04:43:55,456 INFO L93 Difference]: Finished difference Result 259 states and 654 transitions. [2019-12-19 04:43:55,456 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-12-19 04:43:55,456 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 34 [2019-12-19 04:43:55,457 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-19 04:43:55,457 INFO L225 Difference]: With dead ends: 259 [2019-12-19 04:43:55,457 INFO L226 Difference]: Without dead ends: 0 [2019-12-19 04:43:55,458 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2019-12-19 04:43:55,458 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-12-19 04:43:55,458 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-12-19 04:43:55,458 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-12-19 04:43:55,459 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-12-19 04:43:55,459 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 34 [2019-12-19 04:43:55,459 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-19 04:43:55,459 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-19 04:43:55,459 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-12-19 04:43:55,459 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-12-19 04:43:55,460 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-12-19 04:43:55,465 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.12 04:43:55 BasicIcfg [2019-12-19 04:43:55,466 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-19 04:43:55,468 INFO L168 Benchmark]: Toolchain (without parser) took 4360.85 ms. Allocated memory was 137.9 MB in the beginning and 252.7 MB in the end (delta: 114.8 MB). Free memory was 101.1 MB in the beginning and 111.9 MB in the end (delta: -10.8 MB). Peak memory consumption was 104.0 MB. Max. memory is 7.1 GB. [2019-12-19 04:43:55,469 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 137.9 MB. Free memory was 121.0 MB in the beginning and 120.8 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. [2019-12-19 04:43:55,470 INFO L168 Benchmark]: CACSL2BoogieTranslator took 717.29 ms. Allocated memory was 137.9 MB in the beginning and 202.9 MB in the end (delta: 65.0 MB). Free memory was 100.9 MB in the beginning and 160.4 MB in the end (delta: -59.5 MB). Peak memory consumption was 27.5 MB. Max. memory is 7.1 GB. [2019-12-19 04:43:55,471 INFO L168 Benchmark]: Boogie Procedure Inliner took 59.44 ms. Allocated memory is still 202.9 MB. Free memory was 160.4 MB in the beginning and 158.4 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. [2019-12-19 04:43:55,472 INFO L168 Benchmark]: Boogie Preprocessor took 28.49 ms. Allocated memory is still 202.9 MB. Free memory was 158.4 MB in the beginning and 157.0 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 7.1 GB. [2019-12-19 04:43:55,473 INFO L168 Benchmark]: RCFGBuilder took 477.64 ms. Allocated memory is still 202.9 MB. Free memory was 157.0 MB in the beginning and 136.2 MB in the end (delta: 20.8 MB). Peak memory consumption was 20.8 MB. Max. memory is 7.1 GB. [2019-12-19 04:43:55,474 INFO L168 Benchmark]: TraceAbstraction took 3072.39 ms. Allocated memory was 202.9 MB in the beginning and 252.7 MB in the end (delta: 49.8 MB). Free memory was 136.2 MB in the beginning and 111.9 MB in the end (delta: 24.3 MB). Peak memory consumption was 74.1 MB. Max. memory is 7.1 GB. [2019-12-19 04:43:55,478 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 137.9 MB. Free memory was 121.0 MB in the beginning and 120.8 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 717.29 ms. Allocated memory was 137.9 MB in the beginning and 202.9 MB in the end (delta: 65.0 MB). Free memory was 100.9 MB in the beginning and 160.4 MB in the end (delta: -59.5 MB). Peak memory consumption was 27.5 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 59.44 ms. Allocated memory is still 202.9 MB. Free memory was 160.4 MB in the beginning and 158.4 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 28.49 ms. Allocated memory is still 202.9 MB. Free memory was 158.4 MB in the beginning and 157.0 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 477.64 ms. Allocated memory is still 202.9 MB. Free memory was 157.0 MB in the beginning and 136.2 MB in the end (delta: 20.8 MB). Peak memory consumption was 20.8 MB. Max. memory is 7.1 GB. * TraceAbstraction took 3072.39 ms. Allocated memory was 202.9 MB in the beginning and 252.7 MB in the end (delta: 49.8 MB). Free memory was 136.2 MB in the beginning and 111.9 MB in the end (delta: 24.3 MB). Peak memory consumption was 74.1 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 4]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 54 locations, 1 error locations. Result: SAFE, OverallTime: 2.9s, OverallIterations: 7, TraceHistogramMax: 1, AutomataDifference: 1.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 363 SDtfs, 475 SDslu, 1020 SDs, 0 SdLazy, 174 SolverSat, 50 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 67 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 1.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1248occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 7 MinimizatonAttempts, 63 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.1s InterpolantComputationTime, 232 NumberOfCodeBlocks, 232 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 225 ConstructedInterpolants, 0 QuantifiedInterpolants, 23817 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 7 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...