/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-VariableLbe.epf -i ../../../trunk/examples/svcomp/pthread-wmm/safe035_pso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-4336eb1 [2019-12-27 08:13:39,828 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-27 08:13:39,830 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-27 08:13:39,845 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-27 08:13:39,846 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-27 08:13:39,848 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-27 08:13:39,850 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-27 08:13:39,860 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-27 08:13:39,861 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-27 08:13:39,863 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-27 08:13:39,864 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-27 08:13:39,865 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-27 08:13:39,865 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-27 08:13:39,867 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-27 08:13:39,867 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-27 08:13:39,869 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-27 08:13:39,869 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-27 08:13:39,870 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-27 08:13:39,872 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-27 08:13:39,874 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-27 08:13:39,875 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-27 08:13:39,876 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-27 08:13:39,877 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-27 08:13:39,878 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-27 08:13:39,880 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-12-27 08:13:39,883 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-27 08:13:39,884 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-27 08:13:39,885 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-27 08:13:39,886 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-27 08:13:39,887 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-27 08:13:39,887 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-27 08:13:39,888 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-27 08:13:39,888 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-27 08:13:39,888 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-27 08:13:39,889 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-27 08:13:39,890 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-27 08:13:39,891 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-VariableLbe.epf [2019-12-27 08:13:39,917 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-27 08:13:39,918 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-27 08:13:39,921 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-27 08:13:39,921 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-27 08:13:39,922 INFO L138 SettingsManager]: * Use SBE=true [2019-12-27 08:13:39,922 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-27 08:13:39,922 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-27 08:13:39,922 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-27 08:13:39,923 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-27 08:13:39,923 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-27 08:13:39,923 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-27 08:13:39,923 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-27 08:13:39,923 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-27 08:13:39,923 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-27 08:13:39,926 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-27 08:13:39,926 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-27 08:13:39,926 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-27 08:13:39,926 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-27 08:13:39,927 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-27 08:13:39,927 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-27 08:13:39,927 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-27 08:13:39,927 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-27 08:13:39,928 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-27 08:13:39,928 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-27 08:13:39,928 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-27 08:13:39,928 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-12-27 08:13:39,928 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-27 08:13:39,928 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=VARIABLE_BASED_MOVER_CHECK [2019-12-27 08:13:39,931 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-27 08:13:39,931 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-27 08:13:40,191 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-27 08:13:40,200 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-27 08:13:40,206 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-27 08:13:40,209 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-27 08:13:40,209 INFO L275 PluginConnector]: CDTParser initialized [2019-12-27 08:13:40,211 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe035_pso.oepc.i [2019-12-27 08:13:40,278 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ce9626db8/e8af7695523442ecadddf99359b954b5/FLAGef1e86a7b [2019-12-27 08:13:40,811 INFO L306 CDTParser]: Found 1 translation units. [2019-12-27 08:13:40,812 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe035_pso.oepc.i [2019-12-27 08:13:40,829 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ce9626db8/e8af7695523442ecadddf99359b954b5/FLAGef1e86a7b [2019-12-27 08:13:41,113 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ce9626db8/e8af7695523442ecadddf99359b954b5 [2019-12-27 08:13:41,122 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-27 08:13:41,124 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-12-27 08:13:41,126 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-27 08:13:41,126 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-27 08:13:41,129 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-27 08:13:41,130 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.12 08:13:41" (1/1) ... [2019-12-27 08:13:41,133 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2c11641a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 08:13:41, skipping insertion in model container [2019-12-27 08:13:41,134 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.12 08:13:41" (1/1) ... [2019-12-27 08:13:41,142 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-27 08:13:41,190 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-27 08:13:41,672 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-27 08:13:41,690 INFO L203 MainTranslator]: Completed pre-run [2019-12-27 08:13:41,738 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-27 08:13:41,809 INFO L208 MainTranslator]: Completed translation [2019-12-27 08:13:41,810 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 08:13:41 WrapperNode [2019-12-27 08:13:41,810 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-27 08:13:41,811 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-27 08:13:41,811 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-27 08:13:41,811 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-27 08:13:41,820 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 08:13:41" (1/1) ... [2019-12-27 08:13:41,836 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 08:13:41" (1/1) ... [2019-12-27 08:13:41,856 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-27 08:13:41,857 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-27 08:13:41,857 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-27 08:13:41,857 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-27 08:13:41,867 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 08:13:41" (1/1) ... [2019-12-27 08:13:41,867 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 08:13:41" (1/1) ... [2019-12-27 08:13:41,870 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 08:13:41" (1/1) ... [2019-12-27 08:13:41,870 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 08:13:41" (1/1) ... [2019-12-27 08:13:41,877 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 08:13:41" (1/1) ... [2019-12-27 08:13:41,879 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 08:13:41" (1/1) ... [2019-12-27 08:13:41,881 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 08:13:41" (1/1) ... [2019-12-27 08:13:41,884 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-27 08:13:41,884 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-27 08:13:41,885 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-27 08:13:41,885 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-27 08:13:41,886 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 08:13:41" (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 [2019-12-27 08:13:41,957 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-12-27 08:13:41,958 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2019-12-27 08:13:41,958 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-27 08:13:41,958 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-12-27 08:13:41,959 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2019-12-27 08:13:41,959 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2019-12-27 08:13:41,960 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2019-12-27 08:13:41,961 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2019-12-27 08:13:41,961 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2019-12-27 08:13:41,961 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2019-12-27 08:13:41,962 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2019-12-27 08:13:41,962 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-27 08:13:41,962 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-27 08:13:41,964 WARN L205 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2019-12-27 08:13:42,360 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-27 08:13:42,361 INFO L287 CfgBuilder]: Removed 6 assume(true) statements. [2019-12-27 08:13:42,362 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.12 08:13:42 BoogieIcfgContainer [2019-12-27 08:13:42,362 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-27 08:13:42,364 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-27 08:13:42,364 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-27 08:13:42,367 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-27 08:13:42,368 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.12 08:13:41" (1/3) ... [2019-12-27 08:13:42,368 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6a15e20d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.12 08:13:42, skipping insertion in model container [2019-12-27 08:13:42,369 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 08:13:41" (2/3) ... [2019-12-27 08:13:42,369 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6a15e20d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.12 08:13:42, skipping insertion in model container [2019-12-27 08:13:42,369 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.12 08:13:42" (3/3) ... [2019-12-27 08:13:42,371 INFO L109 eAbstractionObserver]: Analyzing ICFG safe035_pso.oepc.i [2019-12-27 08:13:42,382 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2019-12-27 08:13:42,383 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-27 08:13:42,390 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-12-27 08:13:42,391 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2019-12-27 08:13:42,418 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:13:42,418 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:13:42,418 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:13:42,419 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:13:42,419 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:13:42,419 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:13:42,420 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:13:42,420 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:13:42,420 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:13:42,420 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:13:42,420 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:13:42,421 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:13:42,422 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:13:42,422 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:13:42,422 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:13:42,422 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:13:42,423 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:13:42,424 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:13:42,430 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:13:42,431 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:13:42,431 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:13:42,431 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:13:42,440 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:13:42,441 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:13:42,441 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:13:42,441 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:13:42,444 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:13:42,444 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:13:42,445 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:13:42,445 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:13:42,469 INFO L249 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2019-12-27 08:13:42,488 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-27 08:13:42,489 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-27 08:13:42,489 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-27 08:13:42,489 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-27 08:13:42,489 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-27 08:13:42,489 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-27 08:13:42,489 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-27 08:13:42,490 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-27 08:13:42,507 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 63 places, 54 transitions [2019-12-27 08:13:42,509 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 63 places, 54 transitions [2019-12-27 08:13:42,565 INFO L132 PetriNetUnfolder]: 1/51 cut-off events. [2019-12-27 08:13:42,565 INFO L133 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2019-12-27 08:13:42,571 INFO L76 FinitePrefix]: Finished finitePrefix Result has 61 conditions, 51 events. 1/51 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 21 event pairs. 0/49 useless extension candidates. Maximal degree in co-relation 39. Up to 2 conditions per place. [2019-12-27 08:13:42,574 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 63 places, 54 transitions [2019-12-27 08:13:42,591 INFO L132 PetriNetUnfolder]: 1/51 cut-off events. [2019-12-27 08:13:42,592 INFO L133 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2019-12-27 08:13:42,593 INFO L76 FinitePrefix]: Finished finitePrefix Result has 61 conditions, 51 events. 1/51 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 21 event pairs. 0/49 useless extension candidates. Maximal degree in co-relation 39. Up to 2 conditions per place. [2019-12-27 08:13:42,595 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 450 [2019-12-27 08:13:42,596 INFO L182 etLargeBlockEncoding]: Variable Check. [2019-12-27 08:13:44,105 INFO L206 etLargeBlockEncoding]: Checked pairs total: 429 [2019-12-27 08:13:44,105 INFO L214 etLargeBlockEncoding]: Total number of compositions: 46 [2019-12-27 08:13:44,110 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 21 places, 15 transitions [2019-12-27 08:13:44,125 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 46 states. [2019-12-27 08:13:44,128 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states. [2019-12-27 08:13:44,138 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2019-12-27 08:13:44,138 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 08:13:44,139 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 08:13:44,140 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 08:13:44,149 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 08:13:44,150 INFO L82 PathProgramCache]: Analyzing trace with hash 1861325362, now seen corresponding path program 1 times [2019-12-27 08:13:44,165 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 08:13:44,166 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1419528850] [2019-12-27 08:13:44,166 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 08:13:44,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 08:13:44,432 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-27 08:13:44,432 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1419528850] [2019-12-27 08:13:44,433 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 08:13:44,433 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2019-12-27 08:13:44,435 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1077882337] [2019-12-27 08:13:44,440 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-27 08:13:44,440 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 08:13:44,455 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-27 08:13:44,456 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-27 08:13:44,458 INFO L87 Difference]: Start difference. First operand 46 states. Second operand 3 states. [2019-12-27 08:13:44,488 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 08:13:44,488 INFO L93 Difference]: Finished difference Result 44 states and 89 transitions. [2019-12-27 08:13:44,489 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-27 08:13:44,490 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2019-12-27 08:13:44,490 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 08:13:44,504 INFO L225 Difference]: With dead ends: 44 [2019-12-27 08:13:44,505 INFO L226 Difference]: Without dead ends: 36 [2019-12-27 08:13:44,506 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-27 08:13:44,525 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2019-12-27 08:13:44,553 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 36. [2019-12-27 08:13:44,555 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2019-12-27 08:13:44,558 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 69 transitions. [2019-12-27 08:13:44,560 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 69 transitions. Word has length 8 [2019-12-27 08:13:44,562 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 08:13:44,563 INFO L462 AbstractCegarLoop]: Abstraction has 36 states and 69 transitions. [2019-12-27 08:13:44,563 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-27 08:13:44,563 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 69 transitions. [2019-12-27 08:13:44,565 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-12-27 08:13:44,565 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 08:13:44,565 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 08:13:44,566 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 08:13:44,566 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 08:13:44,566 INFO L82 PathProgramCache]: Analyzing trace with hash 1727732260, now seen corresponding path program 1 times [2019-12-27 08:13:44,566 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 08:13:44,567 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1816811634] [2019-12-27 08:13:44,567 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 08:13:44,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 08:13:44,691 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-27 08:13:44,691 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1816811634] [2019-12-27 08:13:44,694 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 08:13:44,694 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2019-12-27 08:13:44,694 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1138843278] [2019-12-27 08:13:44,697 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-27 08:13:44,697 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 08:13:44,697 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-27 08:13:44,698 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-27 08:13:44,698 INFO L87 Difference]: Start difference. First operand 36 states and 69 transitions. Second operand 3 states. [2019-12-27 08:13:44,705 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 08:13:44,705 INFO L93 Difference]: Finished difference Result 34 states and 64 transitions. [2019-12-27 08:13:44,706 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-27 08:13:44,706 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 9 [2019-12-27 08:13:44,706 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 08:13:44,707 INFO L225 Difference]: With dead ends: 34 [2019-12-27 08:13:44,707 INFO L226 Difference]: Without dead ends: 34 [2019-12-27 08:13:44,708 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-27 08:13:44,710 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2019-12-27 08:13:44,715 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 34. [2019-12-27 08:13:44,715 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2019-12-27 08:13:44,718 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 64 transitions. [2019-12-27 08:13:44,718 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 64 transitions. Word has length 9 [2019-12-27 08:13:44,719 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 08:13:44,719 INFO L462 AbstractCegarLoop]: Abstraction has 34 states and 64 transitions. [2019-12-27 08:13:44,720 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-27 08:13:44,720 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 64 transitions. [2019-12-27 08:13:44,721 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-12-27 08:13:44,721 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 08:13:44,721 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 08:13:44,721 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 08:13:44,722 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 08:13:44,722 INFO L82 PathProgramCache]: Analyzing trace with hash 1866511351, now seen corresponding path program 1 times [2019-12-27 08:13:44,722 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 08:13:44,723 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1844029563] [2019-12-27 08:13:44,723 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 08:13:44,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 08:13:44,783 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-27 08:13:44,783 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1844029563] [2019-12-27 08:13:44,784 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 08:13:44,784 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-27 08:13:44,784 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1546781859] [2019-12-27 08:13:44,784 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-27 08:13:44,784 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 08:13:44,785 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-27 08:13:44,785 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-27 08:13:44,785 INFO L87 Difference]: Start difference. First operand 34 states and 64 transitions. Second operand 3 states. [2019-12-27 08:13:44,810 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 08:13:44,810 INFO L93 Difference]: Finished difference Result 36 states and 63 transitions. [2019-12-27 08:13:44,812 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-27 08:13:44,812 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 9 [2019-12-27 08:13:44,813 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 08:13:44,813 INFO L225 Difference]: With dead ends: 36 [2019-12-27 08:13:44,813 INFO L226 Difference]: Without dead ends: 22 [2019-12-27 08:13:44,814 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-27 08:13:44,814 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2019-12-27 08:13:44,818 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 22. [2019-12-27 08:13:44,818 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2019-12-27 08:13:44,819 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 33 transitions. [2019-12-27 08:13:44,819 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 33 transitions. Word has length 9 [2019-12-27 08:13:44,819 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 08:13:44,819 INFO L462 AbstractCegarLoop]: Abstraction has 22 states and 33 transitions. [2019-12-27 08:13:44,819 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-27 08:13:44,819 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 33 transitions. [2019-12-27 08:13:44,821 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-12-27 08:13:44,822 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 08:13:44,822 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 08:13:44,822 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 08:13:44,822 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 08:13:44,822 INFO L82 PathProgramCache]: Analyzing trace with hash 2027276793, now seen corresponding path program 1 times [2019-12-27 08:13:44,823 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 08:13:44,823 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1861160284] [2019-12-27 08:13:44,823 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 08:13:44,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 08:13:45,016 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-27 08:13:45,016 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1861160284] [2019-12-27 08:13:45,017 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 08:13:45,017 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-27 08:13:45,017 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1047997896] [2019-12-27 08:13:45,018 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-12-27 08:13:45,018 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 08:13:45,018 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-12-27 08:13:45,018 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-12-27 08:13:45,019 INFO L87 Difference]: Start difference. First operand 22 states and 33 transitions. Second operand 5 states. [2019-12-27 08:13:45,067 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 08:13:45,067 INFO L93 Difference]: Finished difference Result 25 states and 35 transitions. [2019-12-27 08:13:45,067 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-12-27 08:13:45,067 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 10 [2019-12-27 08:13:45,067 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 08:13:45,068 INFO L225 Difference]: With dead ends: 25 [2019-12-27 08:13:45,068 INFO L226 Difference]: Without dead ends: 19 [2019-12-27 08:13:45,068 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2019-12-27 08:13:45,069 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2019-12-27 08:13:45,070 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2019-12-27 08:13:45,071 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2019-12-27 08:13:45,071 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 25 transitions. [2019-12-27 08:13:45,071 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 25 transitions. Word has length 10 [2019-12-27 08:13:45,072 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 08:13:45,072 INFO L462 AbstractCegarLoop]: Abstraction has 19 states and 25 transitions. [2019-12-27 08:13:45,072 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-12-27 08:13:45,072 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 25 transitions. [2019-12-27 08:13:45,072 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-12-27 08:13:45,072 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 08:13:45,073 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 08:13:45,073 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 08:13:45,073 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 08:13:45,073 INFO L82 PathProgramCache]: Analyzing trace with hash 2029948683, now seen corresponding path program 2 times [2019-12-27 08:13:45,073 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 08:13:45,074 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [336478496] [2019-12-27 08:13:45,074 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 08:13:45,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 08:13:45,156 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-27 08:13:45,156 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [336478496] [2019-12-27 08:13:45,157 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 08:13:45,157 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-12-27 08:13:45,157 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1106994937] [2019-12-27 08:13:45,158 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-12-27 08:13:45,158 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 08:13:45,158 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-12-27 08:13:45,159 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2019-12-27 08:13:45,159 INFO L87 Difference]: Start difference. First operand 19 states and 25 transitions. Second operand 6 states. [2019-12-27 08:13:45,236 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 08:13:45,237 INFO L93 Difference]: Finished difference Result 19 states and 23 transitions. [2019-12-27 08:13:45,237 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-12-27 08:13:45,237 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 10 [2019-12-27 08:13:45,238 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 08:13:45,238 INFO L225 Difference]: With dead ends: 19 [2019-12-27 08:13:45,238 INFO L226 Difference]: Without dead ends: 16 [2019-12-27 08:13:45,239 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2019-12-27 08:13:45,240 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2019-12-27 08:13:45,242 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2019-12-27 08:13:45,242 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2019-12-27 08:13:45,243 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 19 transitions. [2019-12-27 08:13:45,243 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 19 transitions. Word has length 10 [2019-12-27 08:13:45,243 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 08:13:45,243 INFO L462 AbstractCegarLoop]: Abstraction has 16 states and 19 transitions. [2019-12-27 08:13:45,243 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-12-27 08:13:45,244 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 19 transitions. [2019-12-27 08:13:45,244 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-12-27 08:13:45,244 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 08:13:45,244 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 08:13:45,244 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 08:13:45,245 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 08:13:45,245 INFO L82 PathProgramCache]: Analyzing trace with hash -1498585343, now seen corresponding path program 1 times [2019-12-27 08:13:45,245 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 08:13:45,245 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [235683336] [2019-12-27 08:13:45,246 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 08:13:45,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 08:13:45,288 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-27 08:13:45,289 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [235683336] [2019-12-27 08:13:45,289 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 08:13:45,289 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-27 08:13:45,289 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1762327737] [2019-12-27 08:13:45,290 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-27 08:13:45,290 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 08:13:45,290 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-27 08:13:45,291 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-12-27 08:13:45,291 INFO L87 Difference]: Start difference. First operand 16 states and 19 transitions. Second operand 4 states. [2019-12-27 08:13:45,305 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 08:13:45,305 INFO L93 Difference]: Finished difference Result 18 states and 20 transitions. [2019-12-27 08:13:45,306 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-27 08:13:45,306 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2019-12-27 08:13:45,306 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 08:13:45,307 INFO L225 Difference]: With dead ends: 18 [2019-12-27 08:13:45,307 INFO L226 Difference]: Without dead ends: 12 [2019-12-27 08:13:45,307 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-12-27 08:13:45,308 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states. [2019-12-27 08:13:45,309 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12. [2019-12-27 08:13:45,309 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2019-12-27 08:13:45,309 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 11 transitions. [2019-12-27 08:13:45,310 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 11 transitions. Word has length 11 [2019-12-27 08:13:45,310 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 08:13:45,310 INFO L462 AbstractCegarLoop]: Abstraction has 12 states and 11 transitions. [2019-12-27 08:13:45,310 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-27 08:13:45,310 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 11 transitions. [2019-12-27 08:13:45,311 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-12-27 08:13:45,311 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 08:13:45,311 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 08:13:45,311 INFO L410 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 08:13:45,311 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 08:13:45,311 INFO L82 PathProgramCache]: Analyzing trace with hash -1496019473, now seen corresponding path program 2 times [2019-12-27 08:13:45,312 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 08:13:45,312 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1815923579] [2019-12-27 08:13:45,312 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 08:13:45,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 08:13:45,377 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-27 08:13:45,377 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1815923579] [2019-12-27 08:13:45,377 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 08:13:45,378 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-27 08:13:45,378 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1421607248] [2019-12-27 08:13:45,379 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-27 08:13:45,379 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 08:13:45,379 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-27 08:13:45,379 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-12-27 08:13:45,379 INFO L87 Difference]: Start difference. First operand 12 states and 11 transitions. Second operand 4 states. [2019-12-27 08:13:45,389 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 08:13:45,390 INFO L93 Difference]: Finished difference Result 11 states and 10 transitions. [2019-12-27 08:13:45,390 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-27 08:13:45,390 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2019-12-27 08:13:45,391 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 08:13:45,391 INFO L225 Difference]: With dead ends: 11 [2019-12-27 08:13:45,391 INFO L226 Difference]: Without dead ends: 0 [2019-12-27 08:13:45,391 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-12-27 08:13:45,391 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-12-27 08:13:45,392 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-12-27 08:13:45,392 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-12-27 08:13:45,392 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-12-27 08:13:45,392 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 11 [2019-12-27 08:13:45,392 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 08:13:45,392 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-27 08:13:45,393 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-27 08:13:45,393 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-12-27 08:13:45,393 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-12-27 08:13:45,400 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.12 08:13:45 BasicIcfg [2019-12-27 08:13:45,401 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-27 08:13:45,403 INFO L168 Benchmark]: Toolchain (without parser) took 4278.56 ms. Allocated memory was 145.8 MB in the beginning and 245.9 MB in the end (delta: 100.1 MB). Free memory was 100.5 MB in the beginning and 120.2 MB in the end (delta: -19.7 MB). Peak memory consumption was 80.4 MB. Max. memory is 7.1 GB. [2019-12-27 08:13:45,409 INFO L168 Benchmark]: CDTParser took 0.21 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: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. [2019-12-27 08:13:45,411 INFO L168 Benchmark]: CACSL2BoogieTranslator took 684.90 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 161.0 MB in the end (delta: -60.8 MB). Peak memory consumption was 21.0 MB. Max. memory is 7.1 GB. [2019-12-27 08:13:45,412 INFO L168 Benchmark]: Boogie Procedure Inliner took 45.65 ms. Allocated memory is still 203.9 MB. Free memory was 161.0 MB in the beginning and 159.1 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. [2019-12-27 08:13:45,413 INFO L168 Benchmark]: Boogie Preprocessor took 27.35 ms. Allocated memory is still 203.9 MB. Free memory was 159.1 MB in the beginning and 157.7 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 7.1 GB. [2019-12-27 08:13:45,414 INFO L168 Benchmark]: RCFGBuilder took 478.23 ms. Allocated memory is still 203.9 MB. Free memory was 157.0 MB in the beginning and 137.1 MB in the end (delta: 20.0 MB). Peak memory consumption was 20.0 MB. Max. memory is 7.1 GB. [2019-12-27 08:13:45,417 INFO L168 Benchmark]: TraceAbstraction took 3036.88 ms. Allocated memory was 203.9 MB in the beginning and 245.9 MB in the end (delta: 41.9 MB). Free memory was 136.4 MB in the beginning and 120.2 MB in the end (delta: 16.2 MB). Peak memory consumption was 58.2 MB. Max. memory is 7.1 GB. [2019-12-27 08:13:45,427 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 145.8 MB. Free memory was 120.8 MB in the beginning and 120.6 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 684.90 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 161.0 MB in the end (delta: -60.8 MB). Peak memory consumption was 21.0 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 45.65 ms. Allocated memory is still 203.9 MB. Free memory was 161.0 MB in the beginning and 159.1 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 27.35 ms. Allocated memory is still 203.9 MB. Free memory was 159.1 MB in the beginning and 157.7 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 478.23 ms. Allocated memory is still 203.9 MB. Free memory was 157.0 MB in the beginning and 137.1 MB in the end (delta: 20.0 MB). Peak memory consumption was 20.0 MB. Max. memory is 7.1 GB. * TraceAbstraction took 3036.88 ms. Allocated memory was 203.9 MB in the beginning and 245.9 MB in the end (delta: 41.9 MB). Free memory was 136.4 MB in the beginning and 120.2 MB in the end (delta: 16.2 MB). Peak memory consumption was 58.2 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 1.5s, 63 ProgramPointsBefore, 21 ProgramPointsAfterwards, 54 TransitionsBefore, 15 TransitionsAfterwards, 450 CoEnabledTransitionPairs, 7 FixpointIterations, 14 TrivialSequentialCompositions, 29 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 3 ConcurrentYvCompositions, 1 ChoiceCompositions, 223 VarBasedMoverChecksPositive, 12 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 0 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 0 MoverChecksTotal, 429 CheckedPairsTotal, 46 TotalNumberOfCompositions - 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: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 71 SDtfs, 35 SDslu, 46 SDs, 0 SdLazy, 57 SolverSat, 21 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 22 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=46occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 7 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 68 NumberOfCodeBlocks, 68 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 61 ConstructedInterpolants, 0 QuantifiedInterpolants, 1586 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...