/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/pthread-wmm/safe021_tso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-4336eb1 [2019-12-26 23:58:32,854 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-26 23:58:32,857 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-26 23:58:32,875 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-26 23:58:32,876 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-26 23:58:32,878 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-26 23:58:32,880 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-26 23:58:32,893 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-26 23:58:32,895 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-26 23:58:32,896 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-26 23:58:32,898 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-26 23:58:32,901 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-26 23:58:32,901 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-26 23:58:32,904 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-26 23:58:32,906 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-26 23:58:32,908 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-26 23:58:32,910 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-26 23:58:32,912 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-26 23:58:32,914 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-26 23:58:32,920 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-26 23:58:32,924 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-26 23:58:32,929 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-26 23:58:32,931 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-26 23:58:32,932 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-26 23:58:32,934 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-12-26 23:58:32,939 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-26 23:58:32,941 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-26 23:58:32,942 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-26 23:58:32,942 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-26 23:58:32,944 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-26 23:58:32,944 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-26 23:58:32,945 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-26 23:58:32,945 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-26 23:58:32,945 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-26 23:58:32,946 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-26 23:58:32,947 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-26 23:58:32,948 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2019-12-26 23:58:32,968 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-26 23:58:32,968 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-26 23:58:32,972 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-26 23:58:32,972 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-26 23:58:32,973 INFO L138 SettingsManager]: * Use SBE=true [2019-12-26 23:58:32,973 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-26 23:58:32,973 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-26 23:58:32,973 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-26 23:58:32,974 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-26 23:58:32,974 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-26 23:58:32,975 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-26 23:58:32,975 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-26 23:58:32,975 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-26 23:58:32,976 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-26 23:58:32,976 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-26 23:58:32,976 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-26 23:58:32,976 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-26 23:58:32,977 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-26 23:58:32,977 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-26 23:58:32,978 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-26 23:58:32,978 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-26 23:58:32,980 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-26 23:58:32,980 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-26 23:58:32,980 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-26 23:58:32,980 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-26 23:58:32,981 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-12-26 23:58:32,981 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-26 23:58:32,981 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-26 23:58:32,981 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-26 23:58:32,981 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-26 23:58:33,281 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-26 23:58:33,293 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-26 23:58:33,297 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-26 23:58:33,298 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-26 23:58:33,299 INFO L275 PluginConnector]: CDTParser initialized [2019-12-26 23:58:33,299 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe021_tso.oepc.i [2019-12-26 23:58:33,356 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/97b9f766c/71a55731bada47b5b3ac7c6e150a8322/FLAG708825775 [2019-12-26 23:58:33,833 INFO L306 CDTParser]: Found 1 translation units. [2019-12-26 23:58:33,834 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe021_tso.oepc.i [2019-12-26 23:58:33,869 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/97b9f766c/71a55731bada47b5b3ac7c6e150a8322/FLAG708825775 [2019-12-26 23:58:34,182 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/97b9f766c/71a55731bada47b5b3ac7c6e150a8322 [2019-12-26 23:58:34,191 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-26 23:58:34,192 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-12-26 23:58:34,193 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-26 23:58:34,194 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-26 23:58:34,197 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-26 23:58:34,198 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.12 11:58:34" (1/1) ... [2019-12-26 23:58:34,201 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@65075e79 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.12 11:58:34, skipping insertion in model container [2019-12-26 23:58:34,201 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.12 11:58:34" (1/1) ... [2019-12-26 23:58:34,208 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-26 23:58:34,262 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-26 23:58:34,721 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-26 23:58:34,733 INFO L203 MainTranslator]: Completed pre-run [2019-12-26 23:58:34,786 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-26 23:58:34,889 INFO L208 MainTranslator]: Completed translation [2019-12-26 23:58:34,890 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.12 11:58:34 WrapperNode [2019-12-26 23:58:34,890 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-26 23:58:34,891 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-26 23:58:34,891 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-26 23:58:34,891 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-26 23:58:34,899 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.12 11:58:34" (1/1) ... [2019-12-26 23:58:34,916 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.12 11:58:34" (1/1) ... [2019-12-26 23:58:34,939 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-26 23:58:34,939 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-26 23:58:34,940 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-26 23:58:34,940 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-26 23:58:34,949 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.12 11:58:34" (1/1) ... [2019-12-26 23:58:34,949 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.12 11:58:34" (1/1) ... [2019-12-26 23:58:34,952 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.12 11:58:34" (1/1) ... [2019-12-26 23:58:34,953 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.12 11:58:34" (1/1) ... [2019-12-26 23:58:34,959 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.12 11:58:34" (1/1) ... [2019-12-26 23:58:34,962 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.12 11:58:34" (1/1) ... [2019-12-26 23:58:34,964 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.12 11:58:34" (1/1) ... [2019-12-26 23:58:34,967 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-26 23:58:34,967 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-26 23:58:34,968 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-26 23:58:34,968 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-26 23:58:34,969 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.12 11:58:34" (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 [2019-12-26 23:58:35,036 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-12-26 23:58:35,037 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2019-12-26 23:58:35,037 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-26 23:58:35,037 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-12-26 23:58:35,037 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2019-12-26 23:58:35,037 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2019-12-26 23:58:35,038 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2019-12-26 23:58:35,038 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2019-12-26 23:58:35,038 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2019-12-26 23:58:35,038 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2019-12-26 23:58:35,038 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2019-12-26 23:58:35,038 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-26 23:58:35,039 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-26 23:58:35,040 WARN L205 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2019-12-26 23:58:35,395 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-26 23:58:35,395 INFO L287 CfgBuilder]: Removed 6 assume(true) statements. [2019-12-26 23:58:35,397 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.12 11:58:35 BoogieIcfgContainer [2019-12-26 23:58:35,397 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-26 23:58:35,398 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-26 23:58:35,399 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-26 23:58:35,401 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-26 23:58:35,402 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.12 11:58:34" (1/3) ... [2019-12-26 23:58:35,403 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@21843d7b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.12 11:58:35, skipping insertion in model container [2019-12-26 23:58:35,403 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.12 11:58:34" (2/3) ... [2019-12-26 23:58:35,403 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@21843d7b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.12 11:58:35, skipping insertion in model container [2019-12-26 23:58:35,404 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.12 11:58:35" (3/3) ... [2019-12-26 23:58:35,405 INFO L109 eAbstractionObserver]: Analyzing ICFG safe021_tso.oepc.i [2019-12-26 23:58:35,413 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2019-12-26 23:58:35,414 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-26 23:58:35,421 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-12-26 23:58:35,422 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2019-12-26 23:58:35,450 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 23:58:35,451 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 23:58:35,451 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 23:58:35,451 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 23:58:35,452 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 23:58:35,452 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 23:58:35,453 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 23:58:35,453 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 23:58:35,453 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 23:58:35,453 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 23:58:35,454 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 23:58:35,454 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 23:58:35,455 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 23:58:35,455 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 23:58:35,455 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 23:58:35,455 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 23:58:35,456 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 23:58:35,456 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 23:58:35,460 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 23:58:35,460 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 23:58:35,461 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 23:58:35,461 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 23:58:35,475 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 23:58:35,476 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 23:58:35,476 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 23:58:35,476 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 23:58:35,479 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 23:58:35,479 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 23:58:35,480 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 23:58:35,480 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 23:58:35,494 INFO L249 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2019-12-26 23:58:35,510 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-26 23:58:35,510 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-26 23:58:35,510 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-26 23:58:35,510 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-26 23:58:35,510 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-26 23:58:35,511 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-26 23:58:35,511 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-26 23:58:35,511 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-26 23:58:35,523 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 63 places, 54 transitions [2019-12-26 23:58:35,525 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 63 places, 54 transitions [2019-12-26 23:58:35,568 INFO L132 PetriNetUnfolder]: 1/51 cut-off events. [2019-12-26 23:58:35,569 INFO L133 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2019-12-26 23:58:35,577 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 22 event pairs. 0/49 useless extension candidates. Maximal degree in co-relation 39. Up to 2 conditions per place. [2019-12-26 23:58:35,581 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 63 places, 54 transitions [2019-12-26 23:58:35,608 INFO L132 PetriNetUnfolder]: 1/51 cut-off events. [2019-12-26 23:58:35,608 INFO L133 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2019-12-26 23:58:35,610 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 22 event pairs. 0/49 useless extension candidates. Maximal degree in co-relation 39. Up to 2 conditions per place. [2019-12-26 23:58:35,614 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 450 [2019-12-26 23:58:35,615 INFO L170 etLargeBlockEncoding]: Semantic Check. [2019-12-26 23:58:37,133 INFO L206 etLargeBlockEncoding]: Checked pairs total: 442 [2019-12-26 23:58:37,134 INFO L214 etLargeBlockEncoding]: Total number of compositions: 45 [2019-12-26 23:58:37,138 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 22 places, 17 transitions [2019-12-26 23:58:37,147 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 54 states. [2019-12-26 23:58:37,149 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states. [2019-12-26 23:58:37,154 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2019-12-26 23:58:37,154 INFO L403 BasicCegarLoop]: Found error trace [2019-12-26 23:58:37,155 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2019-12-26 23:58:37,156 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-26 23:58:37,162 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-26 23:58:37,162 INFO L82 PathProgramCache]: Analyzing trace with hash 1632263201, now seen corresponding path program 1 times [2019-12-26 23:58:37,171 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-26 23:58:37,172 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2005043597] [2019-12-26 23:58:37,172 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-26 23:58:37,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-26 23:58:37,367 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-26 23:58:37,368 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2005043597] [2019-12-26 23:58:37,370 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-26 23:58:37,370 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2019-12-26 23:58:37,372 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1134743691] [2019-12-26 23:58:37,377 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-26 23:58:37,377 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-26 23:58:37,392 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-26 23:58:37,393 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-26 23:58:37,395 INFO L87 Difference]: Start difference. First operand 54 states. Second operand 3 states. [2019-12-26 23:58:37,436 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-26 23:58:37,436 INFO L93 Difference]: Finished difference Result 52 states and 109 transitions. [2019-12-26 23:58:37,437 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-26 23:58:37,438 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2019-12-26 23:58:37,439 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-26 23:58:37,466 INFO L225 Difference]: With dead ends: 52 [2019-12-26 23:58:37,467 INFO L226 Difference]: Without dead ends: 36 [2019-12-26 23:58:37,468 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 [2019-12-26 23:58:37,484 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2019-12-26 23:58:37,500 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 36. [2019-12-26 23:58:37,502 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2019-12-26 23:58:37,504 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 69 transitions. [2019-12-26 23:58:37,505 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 69 transitions. Word has length 8 [2019-12-26 23:58:37,506 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-26 23:58:37,506 INFO L462 AbstractCegarLoop]: Abstraction has 36 states and 69 transitions. [2019-12-26 23:58:37,506 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-26 23:58:37,506 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 69 transitions. [2019-12-26 23:58:37,507 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-12-26 23:58:37,507 INFO L403 BasicCegarLoop]: Found error trace [2019-12-26 23:58:37,507 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-26 23:58:37,508 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-26 23:58:37,508 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-26 23:58:37,508 INFO L82 PathProgramCache]: Analyzing trace with hash -161820659, now seen corresponding path program 1 times [2019-12-26 23:58:37,508 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-26 23:58:37,509 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1820554748] [2019-12-26 23:58:37,509 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-26 23:58:37,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-26 23:58:37,582 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-26 23:58:37,582 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1820554748] [2019-12-26 23:58:37,582 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-26 23:58:37,583 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-26 23:58:37,583 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1439844971] [2019-12-26 23:58:37,584 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-26 23:58:37,585 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-26 23:58:37,585 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-26 23:58:37,585 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-26 23:58:37,586 INFO L87 Difference]: Start difference. First operand 36 states and 69 transitions. Second operand 3 states. [2019-12-26 23:58:37,601 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-26 23:58:37,601 INFO L93 Difference]: Finished difference Result 42 states and 71 transitions. [2019-12-26 23:58:37,602 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-26 23:58:37,602 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 9 [2019-12-26 23:58:37,602 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-26 23:58:37,605 INFO L225 Difference]: With dead ends: 42 [2019-12-26 23:58:37,605 INFO L226 Difference]: Without dead ends: 36 [2019-12-26 23:58:37,607 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 [2019-12-26 23:58:37,608 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2019-12-26 23:58:37,617 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 34. [2019-12-26 23:58:37,618 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2019-12-26 23:58:37,622 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 58 transitions. [2019-12-26 23:58:37,623 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 58 transitions. Word has length 9 [2019-12-26 23:58:37,623 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-26 23:58:37,623 INFO L462 AbstractCegarLoop]: Abstraction has 34 states and 58 transitions. [2019-12-26 23:58:37,623 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-26 23:58:37,623 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 58 transitions. [2019-12-26 23:58:37,625 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-12-26 23:58:37,625 INFO L403 BasicCegarLoop]: Found error trace [2019-12-26 23:58:37,625 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-26 23:58:37,625 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-26 23:58:37,625 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-26 23:58:37,626 INFO L82 PathProgramCache]: Analyzing trace with hash -939448808, now seen corresponding path program 1 times [2019-12-26 23:58:37,627 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-26 23:58:37,627 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [214829726] [2019-12-26 23:58:37,627 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-26 23:58:37,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-26 23:58:37,741 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-26 23:58:37,742 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [214829726] [2019-12-26 23:58:37,742 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-26 23:58:37,742 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2019-12-26 23:58:37,742 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1888651278] [2019-12-26 23:58:37,743 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-26 23:58:37,743 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-26 23:58:37,743 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-26 23:58:37,743 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-26 23:58:37,744 INFO L87 Difference]: Start difference. First operand 34 states and 58 transitions. Second operand 3 states. [2019-12-26 23:58:37,749 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-26 23:58:37,750 INFO L93 Difference]: Finished difference Result 32 states and 53 transitions. [2019-12-26 23:58:37,750 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-26 23:58:37,750 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 9 [2019-12-26 23:58:37,750 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-26 23:58:37,751 INFO L225 Difference]: With dead ends: 32 [2019-12-26 23:58:37,751 INFO L226 Difference]: Without dead ends: 32 [2019-12-26 23:58:37,751 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 [2019-12-26 23:58:37,752 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2019-12-26 23:58:37,756 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 32. [2019-12-26 23:58:37,757 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32 states. [2019-12-26 23:58:37,757 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 53 transitions. [2019-12-26 23:58:37,758 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 53 transitions. Word has length 9 [2019-12-26 23:58:37,758 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-26 23:58:37,758 INFO L462 AbstractCegarLoop]: Abstraction has 32 states and 53 transitions. [2019-12-26 23:58:37,758 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-26 23:58:37,758 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 53 transitions. [2019-12-26 23:58:37,759 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-12-26 23:58:37,759 INFO L403 BasicCegarLoop]: Found error trace [2019-12-26 23:58:37,759 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-26 23:58:37,760 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-26 23:58:37,760 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-26 23:58:37,760 INFO L82 PathProgramCache]: Analyzing trace with hash 943627699, now seen corresponding path program 1 times [2019-12-26 23:58:37,760 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-26 23:58:37,761 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [298089297] [2019-12-26 23:58:37,761 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-26 23:58:37,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-26 23:58:37,815 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-26 23:58:37,816 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [298089297] [2019-12-26 23:58:37,816 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-26 23:58:37,816 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-26 23:58:37,817 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2036509713] [2019-12-26 23:58:37,817 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-26 23:58:37,817 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-26 23:58:37,818 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-26 23:58:37,818 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-12-26 23:58:37,818 INFO L87 Difference]: Start difference. First operand 32 states and 53 transitions. Second operand 4 states. [2019-12-26 23:58:37,839 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-26 23:58:37,839 INFO L93 Difference]: Finished difference Result 36 states and 55 transitions. [2019-12-26 23:58:37,839 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-26 23:58:37,840 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 10 [2019-12-26 23:58:37,840 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-26 23:58:37,840 INFO L225 Difference]: With dead ends: 36 [2019-12-26 23:58:37,841 INFO L226 Difference]: Without dead ends: 28 [2019-12-26 23:58:37,841 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-12-26 23:58:37,842 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2019-12-26 23:58:37,844 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 28. [2019-12-26 23:58:37,844 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2019-12-26 23:58:37,845 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 41 transitions. [2019-12-26 23:58:37,845 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 41 transitions. Word has length 10 [2019-12-26 23:58:37,845 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-26 23:58:37,845 INFO L462 AbstractCegarLoop]: Abstraction has 28 states and 41 transitions. [2019-12-26 23:58:37,846 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-26 23:58:37,846 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 41 transitions. [2019-12-26 23:58:37,846 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-12-26 23:58:37,846 INFO L403 BasicCegarLoop]: Found error trace [2019-12-26 23:58:37,846 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-26 23:58:37,847 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-26 23:58:37,847 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-26 23:58:37,847 INFO L82 PathProgramCache]: Analyzing trace with hash 941857909, now seen corresponding path program 2 times [2019-12-26 23:58:37,847 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-26 23:58:37,848 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [737166917] [2019-12-26 23:58:37,848 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-26 23:58:37,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-26 23:58:37,999 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-26 23:58:37,999 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [737166917] [2019-12-26 23:58:37,999 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-26 23:58:38,000 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-26 23:58:38,001 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [889048911] [2019-12-26 23:58:38,002 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-12-26 23:58:38,002 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-26 23:58:38,002 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-12-26 23:58:38,003 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-12-26 23:58:38,003 INFO L87 Difference]: Start difference. First operand 28 states and 41 transitions. Second operand 5 states. [2019-12-26 23:58:38,057 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-26 23:58:38,057 INFO L93 Difference]: Finished difference Result 31 states and 42 transitions. [2019-12-26 23:58:38,057 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-12-26 23:58:38,058 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 10 [2019-12-26 23:58:38,058 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-26 23:58:38,058 INFO L225 Difference]: With dead ends: 31 [2019-12-26 23:58:38,058 INFO L226 Difference]: Without dead ends: 25 [2019-12-26 23:58:38,059 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 [2019-12-26 23:58:38,059 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2019-12-26 23:58:38,066 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 25. [2019-12-26 23:58:38,067 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25 states. [2019-12-26 23:58:38,067 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 34 transitions. [2019-12-26 23:58:38,067 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 34 transitions. Word has length 10 [2019-12-26 23:58:38,070 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-26 23:58:38,070 INFO L462 AbstractCegarLoop]: Abstraction has 25 states and 34 transitions. [2019-12-26 23:58:38,070 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-12-26 23:58:38,070 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 34 transitions. [2019-12-26 23:58:38,071 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-12-26 23:58:38,071 INFO L403 BasicCegarLoop]: Found error trace [2019-12-26 23:58:38,071 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-26 23:58:38,071 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-26 23:58:38,072 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-26 23:58:38,075 INFO L82 PathProgramCache]: Analyzing trace with hash 943327309, now seen corresponding path program 3 times [2019-12-26 23:58:38,075 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-26 23:58:38,076 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [537967427] [2019-12-26 23:58:38,076 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-26 23:58:38,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-26 23:58:38,177 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-26 23:58:38,177 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [537967427] [2019-12-26 23:58:38,178 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-26 23:58:38,178 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-12-26 23:58:38,178 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1472517762] [2019-12-26 23:58:38,178 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-12-26 23:58:38,179 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-26 23:58:38,179 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-12-26 23:58:38,179 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2019-12-26 23:58:38,179 INFO L87 Difference]: Start difference. First operand 25 states and 34 transitions. Second operand 6 states. [2019-12-26 23:58:38,249 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-26 23:58:38,249 INFO L93 Difference]: Finished difference Result 25 states and 32 transitions. [2019-12-26 23:58:38,250 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-12-26 23:58:38,250 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 10 [2019-12-26 23:58:38,250 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-26 23:58:38,250 INFO L225 Difference]: With dead ends: 25 [2019-12-26 23:58:38,251 INFO L226 Difference]: Without dead ends: 18 [2019-12-26 23:58:38,251 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 [2019-12-26 23:58:38,251 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2019-12-26 23:58:38,253 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2019-12-26 23:58:38,253 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2019-12-26 23:58:38,254 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 23 transitions. [2019-12-26 23:58:38,254 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 23 transitions. Word has length 10 [2019-12-26 23:58:38,254 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-26 23:58:38,254 INFO L462 AbstractCegarLoop]: Abstraction has 18 states and 23 transitions. [2019-12-26 23:58:38,254 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-12-26 23:58:38,255 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 23 transitions. [2019-12-26 23:58:38,255 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-12-26 23:58:38,255 INFO L403 BasicCegarLoop]: Found error trace [2019-12-26 23:58:38,255 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-26 23:58:38,255 INFO L410 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-26 23:58:38,256 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-26 23:58:38,256 INFO L82 PathProgramCache]: Analyzing trace with hash -889376455, now seen corresponding path program 1 times [2019-12-26 23:58:38,256 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-26 23:58:38,256 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [314391858] [2019-12-26 23:58:38,257 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-26 23:58:38,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-26 23:58:38,299 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-26 23:58:38,300 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [314391858] [2019-12-26 23:58:38,300 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-26 23:58:38,300 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-26 23:58:38,300 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2039351361] [2019-12-26 23:58:38,301 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-26 23:58:38,301 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-26 23:58:38,301 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-26 23:58:38,302 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-12-26 23:58:38,302 INFO L87 Difference]: Start difference. First operand 18 states and 23 transitions. Second operand 4 states. [2019-12-26 23:58:38,319 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-26 23:58:38,319 INFO L93 Difference]: Finished difference Result 17 states and 22 transitions. [2019-12-26 23:58:38,320 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-26 23:58:38,321 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2019-12-26 23:58:38,321 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-26 23:58:38,321 INFO L225 Difference]: With dead ends: 17 [2019-12-26 23:58:38,321 INFO L226 Difference]: Without dead ends: 0 [2019-12-26 23:58:38,322 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 [2019-12-26 23:58:38,322 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-12-26 23:58:38,322 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-12-26 23:58:38,322 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-12-26 23:58:38,323 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-12-26 23:58:38,324 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 11 [2019-12-26 23:58:38,324 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-26 23:58:38,324 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-26 23:58:38,324 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-26 23:58:38,324 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-12-26 23:58:38,325 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-12-26 23:58:38,332 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.12 11:58:38 BasicIcfg [2019-12-26 23:58:38,332 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-26 23:58:38,335 INFO L168 Benchmark]: Toolchain (without parser) took 4141.87 ms. Allocated memory was 138.9 MB in the beginning and 244.8 MB in the end (delta: 105.9 MB). Free memory was 101.9 MB in the beginning and 104.9 MB in the end (delta: -3.0 MB). Peak memory consumption was 102.9 MB. Max. memory is 7.1 GB. [2019-12-26 23:58:38,342 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 138.9 MB. Free memory was 122.1 MB in the beginning and 121.9 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. [2019-12-26 23:58:38,343 INFO L168 Benchmark]: CACSL2BoogieTranslator took 697.05 ms. Allocated memory was 138.9 MB in the beginning and 205.0 MB in the end (delta: 66.1 MB). Free memory was 101.7 MB in the beginning and 162.5 MB in the end (delta: -60.8 MB). Peak memory consumption was 25.9 MB. Max. memory is 7.1 GB. [2019-12-26 23:58:38,344 INFO L168 Benchmark]: Boogie Procedure Inliner took 48.27 ms. Allocated memory is still 205.0 MB. Free memory was 162.5 MB in the beginning and 159.9 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.6 MB. Max. memory is 7.1 GB. [2019-12-26 23:58:38,344 INFO L168 Benchmark]: Boogie Preprocessor took 27.74 ms. Allocated memory is still 205.0 MB. Free memory was 159.9 MB in the beginning and 158.6 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. [2019-12-26 23:58:38,347 INFO L168 Benchmark]: RCFGBuilder took 429.78 ms. Allocated memory is still 205.0 MB. Free memory was 158.6 MB in the beginning and 138.3 MB in the end (delta: 20.3 MB). Peak memory consumption was 20.3 MB. Max. memory is 7.1 GB. [2019-12-26 23:58:38,350 INFO L168 Benchmark]: TraceAbstraction took 2934.10 ms. Allocated memory was 205.0 MB in the beginning and 244.8 MB in the end (delta: 39.8 MB). Free memory was 137.7 MB in the beginning and 104.9 MB in the end (delta: 32.8 MB). Peak memory consumption was 72.6 MB. Max. memory is 7.1 GB. [2019-12-26 23:58:38,360 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 138.9 MB. Free memory was 122.1 MB in the beginning and 121.9 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 697.05 ms. Allocated memory was 138.9 MB in the beginning and 205.0 MB in the end (delta: 66.1 MB). Free memory was 101.7 MB in the beginning and 162.5 MB in the end (delta: -60.8 MB). Peak memory consumption was 25.9 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 48.27 ms. Allocated memory is still 205.0 MB. Free memory was 162.5 MB in the beginning and 159.9 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.6 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 27.74 ms. Allocated memory is still 205.0 MB. Free memory was 159.9 MB in the beginning and 158.6 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 429.78 ms. Allocated memory is still 205.0 MB. Free memory was 158.6 MB in the beginning and 138.3 MB in the end (delta: 20.3 MB). Peak memory consumption was 20.3 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2934.10 ms. Allocated memory was 205.0 MB in the beginning and 244.8 MB in the end (delta: 39.8 MB). Free memory was 137.7 MB in the beginning and 104.9 MB in the end (delta: 32.8 MB). Peak memory consumption was 72.6 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 1.6s, 63 ProgramPointsBefore, 22 ProgramPointsAfterwards, 54 TransitionsBefore, 17 TransitionsAfterwards, 450 CoEnabledTransitionPairs, 7 FixpointIterations, 14 TrivialSequentialCompositions, 27 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 4 ConcurrentYvCompositions, 0 ChoiceCompositions, 234 VarBasedMoverChecksPositive, 14 VarBasedMoverChecksNegative, 2 SemBasedMoverChecksPositive, 13 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.1s, 0 MoverChecksTotal, 442 CheckedPairsTotal, 45 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: 2.8s, OverallIterations: 7, TraceHistogramMax: 1, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 78 SDtfs, 52 SDslu, 58 SDs, 0 SdLazy, 49 SolverSat, 19 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 22 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=54occurred 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, 2 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 67 NumberOfCodeBlocks, 67 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 60 ConstructedInterpolants, 0 QuantifiedInterpolants, 1713 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...