/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/safe025_pso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-fae578e [2019-12-19 05:09:28,681 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-19 05:09:28,684 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-19 05:09:28,701 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-19 05:09:28,702 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-19 05:09:28,704 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-19 05:09:28,706 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-19 05:09:28,716 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-19 05:09:28,719 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-19 05:09:28,722 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-19 05:09:28,724 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-19 05:09:28,726 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-19 05:09:28,727 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-19 05:09:28,729 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-19 05:09:28,731 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-19 05:09:28,733 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-19 05:09:28,734 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-19 05:09:28,735 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-19 05:09:28,737 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-19 05:09:28,741 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-19 05:09:28,746 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-19 05:09:28,750 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-19 05:09:28,751 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-19 05:09:28,752 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-19 05:09:28,754 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-12-19 05:09:28,759 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-19 05:09:28,760 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-19 05:09:28,760 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-19 05:09:28,761 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-19 05:09:28,762 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-19 05:09:28,763 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-19 05:09:28,763 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-19 05:09:28,763 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-19 05:09:28,764 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-19 05:09:28,764 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-19 05:09:28,766 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-19 05:09:28,766 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 05:09:28,797 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-19 05:09:28,797 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-19 05:09:28,800 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-19 05:09:28,800 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-19 05:09:28,800 INFO L138 SettingsManager]: * Use SBE=true [2019-12-19 05:09:28,800 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-19 05:09:28,801 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-19 05:09:28,802 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-19 05:09:28,802 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-19 05:09:28,802 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-19 05:09:28,802 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-19 05:09:28,802 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-19 05:09:28,803 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-19 05:09:28,803 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-19 05:09:28,803 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-19 05:09:28,803 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-19 05:09:28,803 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-19 05:09:28,803 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-19 05:09:28,805 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-19 05:09:28,806 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-19 05:09:28,806 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-19 05:09:28,806 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-19 05:09:28,806 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-19 05:09:28,810 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-19 05:09:28,810 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-19 05:09:28,810 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-12-19 05:09:28,811 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-19 05:09:28,811 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2019-12-19 05:09:28,811 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-19 05:09:28,811 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-19 05:09:29,092 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-19 05:09:29,104 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-19 05:09:29,108 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-19 05:09:29,109 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-19 05:09:29,110 INFO L275 PluginConnector]: CDTParser initialized [2019-12-19 05:09:29,111 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe025_pso.oepc.i [2019-12-19 05:09:29,172 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2f56d5db3/c17026552aad4d37b80d76e44492d746/FLAG41616576f [2019-12-19 05:09:29,732 INFO L306 CDTParser]: Found 1 translation units. [2019-12-19 05:09:29,732 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe025_pso.oepc.i [2019-12-19 05:09:29,747 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2f56d5db3/c17026552aad4d37b80d76e44492d746/FLAG41616576f [2019-12-19 05:09:29,997 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2f56d5db3/c17026552aad4d37b80d76e44492d746 [2019-12-19 05:09:30,005 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-19 05:09:30,006 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-12-19 05:09:30,007 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-19 05:09:30,008 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-19 05:09:30,011 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-19 05:09:30,012 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.12 05:09:29" (1/1) ... [2019-12-19 05:09:30,015 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5f0226f5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 05:09:30, skipping insertion in model container [2019-12-19 05:09:30,015 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.12 05:09:29" (1/1) ... [2019-12-19 05:09:30,024 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-19 05:09:30,077 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-19 05:09:30,607 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-19 05:09:30,625 INFO L203 MainTranslator]: Completed pre-run [2019-12-19 05:09:30,694 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-19 05:09:30,770 INFO L208 MainTranslator]: Completed translation [2019-12-19 05:09:30,771 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 05:09:30 WrapperNode [2019-12-19 05:09:30,771 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-19 05:09:30,772 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-19 05:09:30,772 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-19 05:09:30,772 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-19 05:09:30,782 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 05:09:30" (1/1) ... [2019-12-19 05:09:30,798 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 05:09:30" (1/1) ... [2019-12-19 05:09:30,821 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-19 05:09:30,822 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-19 05:09:30,822 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-19 05:09:30,822 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-19 05:09:30,829 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 05:09:30" (1/1) ... [2019-12-19 05:09:30,830 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 05:09:30" (1/1) ... [2019-12-19 05:09:30,832 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 05:09:30" (1/1) ... [2019-12-19 05:09:30,833 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 05:09:30" (1/1) ... [2019-12-19 05:09:30,839 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 05:09:30" (1/1) ... [2019-12-19 05:09:30,841 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 05:09:30" (1/1) ... [2019-12-19 05:09:30,843 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 05:09:30" (1/1) ... [2019-12-19 05:09:30,846 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-19 05:09:30,847 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-19 05:09:30,847 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-19 05:09:30,847 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-19 05:09:30,848 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 05:09:30" (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 05:09:30,920 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-12-19 05:09:30,921 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2019-12-19 05:09:30,921 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-19 05:09:30,921 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-12-19 05:09:30,921 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2019-12-19 05:09:30,922 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2019-12-19 05:09:30,922 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2019-12-19 05:09:30,922 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2019-12-19 05:09:30,922 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2019-12-19 05:09:30,922 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2019-12-19 05:09:30,922 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2019-12-19 05:09:30,923 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-19 05:09:30,923 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-19 05:09:30,924 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 05:09:31,282 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-19 05:09:31,282 INFO L287 CfgBuilder]: Removed 6 assume(true) statements. [2019-12-19 05:09:31,283 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.12 05:09:31 BoogieIcfgContainer [2019-12-19 05:09:31,284 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-19 05:09:31,285 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-19 05:09:31,285 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-19 05:09:31,288 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-19 05:09:31,288 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.12 05:09:29" (1/3) ... [2019-12-19 05:09:31,289 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@713a71ad and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.12 05:09:31, skipping insertion in model container [2019-12-19 05:09:31,289 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 05:09:30" (2/3) ... [2019-12-19 05:09:31,290 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@713a71ad and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.12 05:09:31, skipping insertion in model container [2019-12-19 05:09:31,290 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.12 05:09:31" (3/3) ... [2019-12-19 05:09:31,291 INFO L109 eAbstractionObserver]: Analyzing ICFG safe025_pso.oepc.i [2019-12-19 05:09:31,300 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2019-12-19 05:09:31,300 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-19 05:09:31,307 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-12-19 05:09:31,308 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2019-12-19 05:09:31,341 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:09:31,341 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:09:31,341 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:09:31,342 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:09:31,343 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:09:31,343 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:09:31,343 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:09:31,344 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:09:31,344 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:09:31,345 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:09:31,345 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:09:31,345 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:09:31,346 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:09:31,346 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:09:31,346 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:09:31,346 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:09:31,348 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:09:31,348 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:09:31,352 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:09:31,352 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:09:31,352 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:09:31,353 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:09:31,363 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:09:31,363 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:09:31,364 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:09:31,364 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:09:31,367 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:09:31,368 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:09:31,368 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:09:31,368 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:09:31,382 INFO L249 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2019-12-19 05:09:31,400 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-19 05:09:31,400 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-19 05:09:31,400 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-19 05:09:31,401 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-19 05:09:31,401 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-19 05:09:31,401 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-19 05:09:31,401 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-19 05:09:31,401 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-19 05:09:31,413 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 63 places, 54 transitions [2019-12-19 05:09:31,499 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 1248 states. [2019-12-19 05:09:31,501 INFO L276 IsEmpty]: Start isEmpty. Operand 1248 states. [2019-12-19 05:09:31,529 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2019-12-19 05:09:31,529 INFO L403 BasicCegarLoop]: Found error trace [2019-12-19 05:09:31,531 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 05:09:31,531 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-19 05:09:31,538 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-19 05:09:31,539 INFO L82 PathProgramCache]: Analyzing trace with hash -2051529162, now seen corresponding path program 1 times [2019-12-19 05:09:31,548 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-19 05:09:31,548 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1018551216] [2019-12-19 05:09:31,549 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-19 05:09:31,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-19 05:09:32,033 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 05:09:32,034 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1018551216] [2019-12-19 05:09:32,035 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-19 05:09:32,035 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-12-19 05:09:32,036 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2092930426] [2019-12-19 05:09:32,041 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-19 05:09:32,042 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-19 05:09:32,057 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-19 05:09:32,058 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-12-19 05:09:32,060 INFO L87 Difference]: Start difference. First operand 1248 states. Second operand 4 states. [2019-12-19 05:09:32,199 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-19 05:09:32,200 INFO L93 Difference]: Finished difference Result 1295 states and 3961 transitions. [2019-12-19 05:09:32,201 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-12-19 05:09:32,203 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 31 [2019-12-19 05:09:32,203 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-19 05:09:32,226 INFO L225 Difference]: With dead ends: 1295 [2019-12-19 05:09:32,227 INFO L226 Difference]: Without dead ends: 601 [2019-12-19 05:09:32,228 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 05:09:32,256 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 601 states. [2019-12-19 05:09:32,318 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 601 to 601. [2019-12-19 05:09:32,322 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 601 states. [2019-12-19 05:09:32,326 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 601 states to 601 states and 1776 transitions. [2019-12-19 05:09:32,328 INFO L78 Accepts]: Start accepts. Automaton has 601 states and 1776 transitions. Word has length 31 [2019-12-19 05:09:32,328 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-19 05:09:32,328 INFO L462 AbstractCegarLoop]: Abstraction has 601 states and 1776 transitions. [2019-12-19 05:09:32,329 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-19 05:09:32,329 INFO L276 IsEmpty]: Start isEmpty. Operand 601 states and 1776 transitions. [2019-12-19 05:09:32,333 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2019-12-19 05:09:32,334 INFO L403 BasicCegarLoop]: Found error trace [2019-12-19 05:09:32,334 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 05:09:32,335 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-19 05:09:32,335 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-19 05:09:32,336 INFO L82 PathProgramCache]: Analyzing trace with hash 1995748591, now seen corresponding path program 1 times [2019-12-19 05:09:32,336 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-19 05:09:32,337 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2032380085] [2019-12-19 05:09:32,337 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-19 05:09:32,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-19 05:09:32,537 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 05:09:32,538 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2032380085] [2019-12-19 05:09:32,538 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-19 05:09:32,538 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-12-19 05:09:32,539 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [763103487] [2019-12-19 05:09:32,540 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-12-19 05:09:32,541 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-19 05:09:32,541 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-12-19 05:09:32,541 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-12-19 05:09:32,541 INFO L87 Difference]: Start difference. First operand 601 states and 1776 transitions. Second operand 5 states. [2019-12-19 05:09:32,621 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-19 05:09:32,622 INFO L93 Difference]: Finished difference Result 601 states and 1695 transitions. [2019-12-19 05:09:32,622 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-12-19 05:09:32,622 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 32 [2019-12-19 05:09:32,623 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-19 05:09:32,628 INFO L225 Difference]: With dead ends: 601 [2019-12-19 05:09:32,629 INFO L226 Difference]: Without dead ends: 538 [2019-12-19 05:09:32,630 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 05:09:32,636 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 538 states. [2019-12-19 05:09:32,659 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 538 to 538. [2019-12-19 05:09:32,660 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 538 states. [2019-12-19 05:09:32,663 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 538 states to 538 states and 1545 transitions. [2019-12-19 05:09:32,663 INFO L78 Accepts]: Start accepts. Automaton has 538 states and 1545 transitions. Word has length 32 [2019-12-19 05:09:32,663 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-19 05:09:32,664 INFO L462 AbstractCegarLoop]: Abstraction has 538 states and 1545 transitions. [2019-12-19 05:09:32,664 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-12-19 05:09:32,664 INFO L276 IsEmpty]: Start isEmpty. Operand 538 states and 1545 transitions. [2019-12-19 05:09:32,666 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2019-12-19 05:09:32,666 INFO L403 BasicCegarLoop]: Found error trace [2019-12-19 05:09:32,666 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 05:09:32,666 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-19 05:09:32,666 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-19 05:09:32,667 INFO L82 PathProgramCache]: Analyzing trace with hash -505047863, now seen corresponding path program 1 times [2019-12-19 05:09:32,667 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-19 05:09:32,667 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [16214311] [2019-12-19 05:09:32,668 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-19 05:09:32,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-19 05:09:32,792 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 05:09:32,792 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [16214311] [2019-12-19 05:09:32,792 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-19 05:09:32,793 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-12-19 05:09:32,793 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [480588778] [2019-12-19 05:09:32,793 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-12-19 05:09:32,793 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-19 05:09:32,794 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-12-19 05:09:32,794 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2019-12-19 05:09:32,794 INFO L87 Difference]: Start difference. First operand 538 states and 1545 transitions. Second operand 6 states. [2019-12-19 05:09:32,894 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-19 05:09:32,895 INFO L93 Difference]: Finished difference Result 403 states and 1059 transitions. [2019-12-19 05:09:32,895 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-12-19 05:09:32,895 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 33 [2019-12-19 05:09:32,896 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-19 05:09:32,898 INFO L225 Difference]: With dead ends: 403 [2019-12-19 05:09:32,899 INFO L226 Difference]: Without dead ends: 349 [2019-12-19 05:09:32,899 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2019-12-19 05:09:32,901 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 349 states. [2019-12-19 05:09:32,911 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 349 to 349. [2019-12-19 05:09:32,911 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 349 states. [2019-12-19 05:09:32,913 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 349 states to 349 states and 915 transitions. [2019-12-19 05:09:32,913 INFO L78 Accepts]: Start accepts. Automaton has 349 states and 915 transitions. Word has length 33 [2019-12-19 05:09:32,913 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-19 05:09:32,914 INFO L462 AbstractCegarLoop]: Abstraction has 349 states and 915 transitions. [2019-12-19 05:09:32,914 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-12-19 05:09:32,914 INFO L276 IsEmpty]: Start isEmpty. Operand 349 states and 915 transitions. [2019-12-19 05:09:32,915 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2019-12-19 05:09:32,915 INFO L403 BasicCegarLoop]: Found error trace [2019-12-19 05:09:32,915 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 05:09:32,916 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-19 05:09:32,916 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-19 05:09:32,916 INFO L82 PathProgramCache]: Analyzing trace with hash 1707713269, now seen corresponding path program 1 times [2019-12-19 05:09:32,916 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-19 05:09:32,917 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1208630084] [2019-12-19 05:09:32,917 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-19 05:09:32,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-19 05:09:33,110 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 05:09:33,111 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1208630084] [2019-12-19 05:09:33,111 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-19 05:09:33,111 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-12-19 05:09:33,112 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1742260966] [2019-12-19 05:09:33,112 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-12-19 05:09:33,112 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-19 05:09:33,113 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-12-19 05:09:33,113 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-12-19 05:09:33,113 INFO L87 Difference]: Start difference. First operand 349 states and 915 transitions. Second operand 7 states. [2019-12-19 05:09:33,393 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-19 05:09:33,393 INFO L93 Difference]: Finished difference Result 565 states and 1500 transitions. [2019-12-19 05:09:33,394 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-12-19 05:09:33,394 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 34 [2019-12-19 05:09:33,394 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-19 05:09:33,397 INFO L225 Difference]: With dead ends: 565 [2019-12-19 05:09:33,397 INFO L226 Difference]: Without dead ends: 394 [2019-12-19 05:09:33,398 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2019-12-19 05:09:33,400 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 394 states. [2019-12-19 05:09:33,410 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 394 to 340. [2019-12-19 05:09:33,410 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 340 states. [2019-12-19 05:09:33,412 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 340 states to 340 states and 888 transitions. [2019-12-19 05:09:33,412 INFO L78 Accepts]: Start accepts. Automaton has 340 states and 888 transitions. Word has length 34 [2019-12-19 05:09:33,413 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-19 05:09:33,413 INFO L462 AbstractCegarLoop]: Abstraction has 340 states and 888 transitions. [2019-12-19 05:09:33,413 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-12-19 05:09:33,413 INFO L276 IsEmpty]: Start isEmpty. Operand 340 states and 888 transitions. [2019-12-19 05:09:33,414 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2019-12-19 05:09:33,415 INFO L403 BasicCegarLoop]: Found error trace [2019-12-19 05:09:33,415 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 05:09:33,415 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-19 05:09:33,415 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-19 05:09:33,416 INFO L82 PathProgramCache]: Analyzing trace with hash 1534465577, now seen corresponding path program 2 times [2019-12-19 05:09:33,416 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-19 05:09:33,416 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [448433082] [2019-12-19 05:09:33,417 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-19 05:09:33,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-19 05:09:33,592 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 05:09:33,592 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [448433082] [2019-12-19 05:09:33,592 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-19 05:09:33,593 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-12-19 05:09:33,593 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [794422570] [2019-12-19 05:09:33,593 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-12-19 05:09:33,594 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-19 05:09:33,594 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-12-19 05:09:33,594 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2019-12-19 05:09:33,594 INFO L87 Difference]: Start difference. First operand 340 states and 888 transitions. Second operand 8 states. [2019-12-19 05:09:33,727 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-19 05:09:33,728 INFO L93 Difference]: Finished difference Result 556 states and 1473 transitions. [2019-12-19 05:09:33,728 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-12-19 05:09:33,728 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 34 [2019-12-19 05:09:33,729 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-19 05:09:33,731 INFO L225 Difference]: With dead ends: 556 [2019-12-19 05:09:33,731 INFO L226 Difference]: Without dead ends: 334 [2019-12-19 05:09:33,732 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 05:09:33,734 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 334 states. [2019-12-19 05:09:33,742 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 334 to 325. [2019-12-19 05:09:33,742 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 325 states. [2019-12-19 05:09:33,744 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 325 states to 325 states and 846 transitions. [2019-12-19 05:09:33,745 INFO L78 Accepts]: Start accepts. Automaton has 325 states and 846 transitions. Word has length 34 [2019-12-19 05:09:33,745 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-19 05:09:33,745 INFO L462 AbstractCegarLoop]: Abstraction has 325 states and 846 transitions. [2019-12-19 05:09:33,746 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-12-19 05:09:33,746 INFO L276 IsEmpty]: Start isEmpty. Operand 325 states and 846 transitions. [2019-12-19 05:09:33,747 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2019-12-19 05:09:33,747 INFO L403 BasicCegarLoop]: Found error trace [2019-12-19 05:09:33,747 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 05:09:33,747 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-19 05:09:33,748 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-19 05:09:33,748 INFO L82 PathProgramCache]: Analyzing trace with hash -1612310977, now seen corresponding path program 3 times [2019-12-19 05:09:33,748 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-19 05:09:33,748 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [91951673] [2019-12-19 05:09:33,748 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-19 05:09:33,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-19 05:09:33,887 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 05:09:33,887 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [91951673] [2019-12-19 05:09:33,887 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-19 05:09:33,887 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-12-19 05:09:33,888 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1152222809] [2019-12-19 05:09:33,889 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-12-19 05:09:33,889 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-19 05:09:33,889 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-12-19 05:09:33,889 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2019-12-19 05:09:33,889 INFO L87 Difference]: Start difference. First operand 325 states and 846 transitions. Second operand 8 states. [2019-12-19 05:09:34,004 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-19 05:09:34,005 INFO L93 Difference]: Finished difference Result 487 states and 1305 transitions. [2019-12-19 05:09:34,005 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-12-19 05:09:34,005 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 34 [2019-12-19 05:09:34,006 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-19 05:09:34,008 INFO L225 Difference]: With dead ends: 487 [2019-12-19 05:09:34,009 INFO L226 Difference]: Without dead ends: 313 [2019-12-19 05:09:34,009 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 05:09:34,011 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 313 states. [2019-12-19 05:09:34,020 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 313 to 313. [2019-12-19 05:09:34,020 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 313 states. [2019-12-19 05:09:34,022 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 313 states to 313 states and 816 transitions. [2019-12-19 05:09:34,022 INFO L78 Accepts]: Start accepts. Automaton has 313 states and 816 transitions. Word has length 34 [2019-12-19 05:09:34,022 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-19 05:09:34,023 INFO L462 AbstractCegarLoop]: Abstraction has 313 states and 816 transitions. [2019-12-19 05:09:34,023 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-12-19 05:09:34,023 INFO L276 IsEmpty]: Start isEmpty. Operand 313 states and 816 transitions. [2019-12-19 05:09:34,024 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2019-12-19 05:09:34,024 INFO L403 BasicCegarLoop]: Found error trace [2019-12-19 05:09:34,024 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 05:09:34,024 INFO L410 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-19 05:09:34,025 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-19 05:09:34,025 INFO L82 PathProgramCache]: Analyzing trace with hash -627162331, now seen corresponding path program 4 times [2019-12-19 05:09:34,025 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-19 05:09:34,025 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1534401321] [2019-12-19 05:09:34,026 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-19 05:09:34,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-19 05:09:34,161 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 05:09:34,161 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1534401321] [2019-12-19 05:09:34,162 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-19 05:09:34,162 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-12-19 05:09:34,162 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [823354776] [2019-12-19 05:09:34,162 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-12-19 05:09:34,163 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-19 05:09:34,163 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-12-19 05:09:34,163 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-12-19 05:09:34,163 INFO L87 Difference]: Start difference. First operand 313 states and 816 transitions. Second operand 7 states. [2019-12-19 05:09:34,261 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-19 05:09:34,261 INFO L93 Difference]: Finished difference Result 259 states and 654 transitions. [2019-12-19 05:09:34,261 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-12-19 05:09:34,262 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 34 [2019-12-19 05:09:34,262 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-19 05:09:34,262 INFO L225 Difference]: With dead ends: 259 [2019-12-19 05:09:34,262 INFO L226 Difference]: Without dead ends: 0 [2019-12-19 05:09:34,263 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2019-12-19 05:09:34,263 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-12-19 05:09:34,263 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-12-19 05:09:34,263 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-12-19 05:09:34,263 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-12-19 05:09:34,264 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 34 [2019-12-19 05:09:34,264 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-19 05:09:34,264 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-19 05:09:34,265 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-12-19 05:09:34,265 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-12-19 05:09:34,265 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-12-19 05:09:34,271 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.12 05:09:34 BasicIcfg [2019-12-19 05:09:34,272 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-19 05:09:34,275 INFO L168 Benchmark]: Toolchain (without parser) took 4267.09 ms. Allocated memory was 145.8 MB in the beginning and 249.6 MB in the end (delta: 103.8 MB). Free memory was 100.5 MB in the beginning and 110.3 MB in the end (delta: -9.8 MB). Peak memory consumption was 94.0 MB. Max. memory is 7.1 GB. [2019-12-19 05:09:34,281 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 145.8 MB. Free memory was 120.8 MB in the beginning and 120.6 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2019-12-19 05:09:34,283 INFO L168 Benchmark]: CACSL2BoogieTranslator took 764.04 ms. Allocated memory was 145.8 MB in the beginning and 203.9 MB in the end (delta: 58.2 MB). Free memory was 100.3 MB in the beginning and 161.1 MB in the end (delta: -60.8 MB). Peak memory consumption was 20.5 MB. Max. memory is 7.1 GB. [2019-12-19 05:09:34,284 INFO L168 Benchmark]: Boogie Procedure Inliner took 49.50 ms. Allocated memory is still 203.9 MB. Free memory was 161.1 MB in the beginning and 158.5 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.6 MB. Max. memory is 7.1 GB. [2019-12-19 05:09:34,285 INFO L168 Benchmark]: Boogie Preprocessor took 24.74 ms. Allocated memory is still 203.9 MB. Free memory was 158.5 MB in the beginning and 157.2 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. [2019-12-19 05:09:34,285 INFO L168 Benchmark]: RCFGBuilder took 437.02 ms. Allocated memory is still 203.9 MB. Free memory was 157.2 MB in the beginning and 136.6 MB in the end (delta: 20.6 MB). Peak memory consumption was 20.6 MB. Max. memory is 7.1 GB. [2019-12-19 05:09:34,288 INFO L168 Benchmark]: TraceAbstraction took 2986.93 ms. Allocated memory was 203.9 MB in the beginning and 249.6 MB in the end (delta: 45.6 MB). Free memory was 136.0 MB in the beginning and 110.3 MB in the end (delta: 25.6 MB). Peak memory consumption was 71.3 MB. Max. memory is 7.1 GB. [2019-12-19 05:09:34,301 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 145.8 MB. Free memory was 120.8 MB in the beginning and 120.6 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 764.04 ms. Allocated memory was 145.8 MB in the beginning and 203.9 MB in the end (delta: 58.2 MB). Free memory was 100.3 MB in the beginning and 161.1 MB in the end (delta: -60.8 MB). Peak memory consumption was 20.5 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 49.50 ms. Allocated memory is still 203.9 MB. Free memory was 161.1 MB in the beginning and 158.5 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.6 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 24.74 ms. Allocated memory is still 203.9 MB. Free memory was 158.5 MB in the beginning and 157.2 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 437.02 ms. Allocated memory is still 203.9 MB. Free memory was 157.2 MB in the beginning and 136.6 MB in the end (delta: 20.6 MB). Peak memory consumption was 20.6 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2986.93 ms. Allocated memory was 203.9 MB in the beginning and 249.6 MB in the end (delta: 45.6 MB). Free memory was 136.0 MB in the beginning and 110.3 MB in the end (delta: 25.6 MB). Peak memory consumption was 71.3 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: 2.8s, OverallIterations: 7, TraceHistogramMax: 1, AutomataDifference: 1.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 375 SDtfs, 461 SDslu, 1075 SDs, 0 SdLazy, 174 SolverSat, 44 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 66 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.9s 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, 0.2s SatisfiabilityAnalysisTime, 1.0s InterpolantComputationTime, 232 NumberOfCodeBlocks, 232 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 225 ConstructedInterpolants, 0 QuantifiedInterpolants, 21969 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...