/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-wmm/safe035_tso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-7cd14b8b9f04096d8ddfd3d9cd8a4ac590fe5404-7cd14b8 [2021-03-10 17:36:20,382 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-03-10 17:36:20,383 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-03-10 17:36:20,407 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-03-10 17:36:20,413 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-03-10 17:36:20,414 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-03-10 17:36:20,415 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-03-10 17:36:20,415 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-03-10 17:36:20,416 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-03-10 17:36:20,416 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-03-10 17:36:20,417 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-03-10 17:36:20,419 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-03-10 17:36:20,419 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-03-10 17:36:20,427 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-03-10 17:36:20,427 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-03-10 17:36:20,428 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-03-10 17:36:20,429 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-03-10 17:36:20,434 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-03-10 17:36:20,435 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-03-10 17:36:20,435 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-03-10 17:36:20,436 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe.epf [2021-03-10 17:36:20,465 INFO L113 SettingsManager]: Loading preferences was successful [2021-03-10 17:36:20,465 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-03-10 17:36:20,465 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-03-10 17:36:20,465 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-03-10 17:36:20,466 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-03-10 17:36:20,466 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-03-10 17:36:20,467 INFO L138 SettingsManager]: * Use SBE=true [2021-03-10 17:36:20,467 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-03-10 17:36:20,467 INFO L138 SettingsManager]: * sizeof long=4 [2021-03-10 17:36:20,467 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-03-10 17:36:20,467 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-03-10 17:36:20,467 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-03-10 17:36:20,467 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-03-10 17:36:20,467 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-03-10 17:36:20,468 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-03-10 17:36:20,468 INFO L138 SettingsManager]: * sizeof long double=12 [2021-03-10 17:36:20,468 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-03-10 17:36:20,468 INFO L138 SettingsManager]: * Use constant arrays=true [2021-03-10 17:36:20,468 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-03-10 17:36:20,468 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-03-10 17:36:20,468 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-03-10 17:36:20,468 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-03-10 17:36:20,469 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-03-10 17:36:20,469 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-03-10 17:36:20,469 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-03-10 17:36:20,469 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-03-10 17:36:20,469 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-03-10 17:36:20,469 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-03-10 17:36:20,469 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-03-10 17:36:20,469 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-03-10 17:36:20,470 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-03-10 17:36:20,470 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-03-10 17:36:20,684 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-03-10 17:36:20,700 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-03-10 17:36:20,702 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-03-10 17:36:20,703 INFO L271 PluginConnector]: Initializing CDTParser... [2021-03-10 17:36:20,703 INFO L275 PluginConnector]: CDTParser initialized [2021-03-10 17:36:20,704 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe035_tso.oepc.i [2021-03-10 17:36:20,763 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ea94a4d99/f4478520c29f4b8eac37927edc8699e1/FLAG6ce97e3a6 [2021-03-10 17:36:21,172 INFO L306 CDTParser]: Found 1 translation units. [2021-03-10 17:36:21,173 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe035_tso.oepc.i [2021-03-10 17:36:21,191 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ea94a4d99/f4478520c29f4b8eac37927edc8699e1/FLAG6ce97e3a6 [2021-03-10 17:36:21,542 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ea94a4d99/f4478520c29f4b8eac37927edc8699e1 [2021-03-10 17:36:21,544 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-03-10 17:36:21,548 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-03-10 17:36:21,552 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-03-10 17:36:21,552 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-03-10 17:36:21,554 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-03-10 17:36:21,555 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.03 05:36:21" (1/1) ... [2021-03-10 17:36:21,556 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@28f59da and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.03 05:36:21, skipping insertion in model container [2021-03-10 17:36:21,557 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.03 05:36:21" (1/1) ... [2021-03-10 17:36:21,561 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-03-10 17:36:21,601 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-03-10 17:36:21,776 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe035_tso.oepc.i[950,963] [2021-03-10 17:36:21,919 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-03-10 17:36:21,925 INFO L203 MainTranslator]: Completed pre-run [2021-03-10 17:36:21,933 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe035_tso.oepc.i[950,963] [2021-03-10 17:36:21,958 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-03-10 17:36:22,007 INFO L208 MainTranslator]: Completed translation [2021-03-10 17:36:22,008 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.03 05:36:22 WrapperNode [2021-03-10 17:36:22,008 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-03-10 17:36:22,009 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-03-10 17:36:22,009 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-03-10 17:36:22,009 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-03-10 17:36:22,014 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.03 05:36:22" (1/1) ... [2021-03-10 17:36:22,040 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.03 05:36:22" (1/1) ... [2021-03-10 17:36:22,052 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-03-10 17:36:22,052 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-03-10 17:36:22,052 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-03-10 17:36:22,052 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-03-10 17:36:22,057 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.03 05:36:22" (1/1) ... [2021-03-10 17:36:22,057 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.03 05:36:22" (1/1) ... [2021-03-10 17:36:22,059 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.03 05:36:22" (1/1) ... [2021-03-10 17:36:22,059 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.03 05:36:22" (1/1) ... [2021-03-10 17:36:22,062 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.03 05:36:22" (1/1) ... [2021-03-10 17:36:22,068 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.03 05:36:22" (1/1) ... [2021-03-10 17:36:22,072 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.03 05:36:22" (1/1) ... [2021-03-10 17:36:22,082 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-03-10 17:36:22,083 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-03-10 17:36:22,083 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-03-10 17:36:22,083 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-03-10 17:36:22,083 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.03 05:36:22" (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 [2021-03-10 17:36:22,131 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-03-10 17:36:22,132 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-03-10 17:36:22,132 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-03-10 17:36:22,132 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-03-10 17:36:22,132 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2021-03-10 17:36:22,134 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2021-03-10 17:36:22,134 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2021-03-10 17:36:22,134 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2021-03-10 17:36:22,134 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2021-03-10 17:36:22,134 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2021-03-10 17:36:22,134 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-03-10 17:36:22,134 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-03-10 17:36:22,134 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-03-10 17:36:22,134 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-03-10 17:36:22,135 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-03-10 17:36:22,404 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-03-10 17:36:22,404 INFO L299 CfgBuilder]: Removed 8 assume(true) statements. [2021-03-10 17:36:22,405 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.03 05:36:22 BoogieIcfgContainer [2021-03-10 17:36:22,405 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-03-10 17:36:22,406 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-03-10 17:36:22,406 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-03-10 17:36:22,409 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-03-10 17:36:22,410 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.03 05:36:21" (1/3) ... [2021-03-10 17:36:22,410 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4808affa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.03 05:36:22, skipping insertion in model container [2021-03-10 17:36:22,410 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.03 05:36:22" (2/3) ... [2021-03-10 17:36:22,410 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4808affa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.03 05:36:22, skipping insertion in model container [2021-03-10 17:36:22,411 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.03 05:36:22" (3/3) ... [2021-03-10 17:36:22,411 INFO L111 eAbstractionObserver]: Analyzing ICFG safe035_tso.oepc.i [2021-03-10 17:36:22,416 WARN L142 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-03-10 17:36:22,416 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-03-10 17:36:22,419 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-03-10 17:36:22,420 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-03-10 17:36:22,446 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:36:22,446 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:36:22,446 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:36:22,446 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:36:22,446 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:36:22,446 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:36:22,447 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:36:22,447 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:36:22,447 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:36:22,447 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:36:22,447 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:36:22,447 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:36:22,448 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:36:22,448 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:36:22,448 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:36:22,448 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:36:22,449 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:36:22,449 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:36:22,449 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:36:22,449 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:36:22,449 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:36:22,449 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:36:22,450 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:36:22,450 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:36:22,451 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:36:22,451 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:36:22,452 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:36:22,452 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:36:22,452 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:36:22,452 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:36:22,452 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:36:22,453 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:36:22,455 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:36:22,455 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:36:22,455 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:36:22,455 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:36:22,457 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:36:22,457 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:36:22,457 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:36:22,457 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:36:22,462 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:36:22,462 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:36:22,462 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:36:22,462 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:36:22,467 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:36:22,467 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:36:22,470 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:36:22,470 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:36:22,475 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-03-10 17:36:22,486 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2021-03-10 17:36:22,499 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-03-10 17:36:22,499 INFO L377 AbstractCegarLoop]: Hoare is true [2021-03-10 17:36:22,499 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-03-10 17:36:22,499 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-03-10 17:36:22,499 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-03-10 17:36:22,499 INFO L381 AbstractCegarLoop]: Difference is false [2021-03-10 17:36:22,500 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-03-10 17:36:22,500 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-03-10 17:36:22,506 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 83 places, 75 transitions, 165 flow [2021-03-10 17:36:22,919 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 8819 states, 8817 states have (on average 3.5808097992514463) internal successors, (31572), 8818 states have internal predecessors, (31572), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:36:22,953 INFO L276 IsEmpty]: Start isEmpty. Operand has 8819 states, 8817 states have (on average 3.5808097992514463) internal successors, (31572), 8818 states have internal predecessors, (31572), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:36:22,971 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2021-03-10 17:36:22,971 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:36:22,972 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:36:22,972 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-10 17:36:22,976 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:36:22,976 INFO L82 PathProgramCache]: Analyzing trace with hash 1450915912, now seen corresponding path program 1 times [2021-03-10 17:36:22,981 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:36:22,982 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [597730614] [2021-03-10 17:36:22,982 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:36:23,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:36:23,350 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:36:23,350 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [597730614] [2021-03-10 17:36:23,351 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:36:23,351 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-10 17:36:23,351 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [965130046] [2021-03-10 17:36:23,363 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-10 17:36:23,364 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:36:23,371 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-10 17:36:23,372 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-03-10 17:36:23,409 INFO L87 Difference]: Start difference. First operand has 8819 states, 8817 states have (on average 3.5808097992514463) internal successors, (31572), 8818 states have internal predecessors, (31572), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 7 states, 7 states have (on average 5.714285714285714) internal successors, (40), 7 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:36:23,886 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:36:23,887 INFO L93 Difference]: Finished difference Result 14390 states and 49201 transitions. [2021-03-10 17:36:23,887 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-03-10 17:36:23,888 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 5.714285714285714) internal successors, (40), 7 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 40 [2021-03-10 17:36:23,889 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:36:23,920 INFO L225 Difference]: With dead ends: 14390 [2021-03-10 17:36:23,920 INFO L226 Difference]: Without dead ends: 3445 [2021-03-10 17:36:23,921 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 305.8ms TimeCoverageRelationStatistics Valid=73, Invalid=137, Unknown=0, NotChecked=0, Total=210 [2021-03-10 17:36:23,948 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3445 states. [2021-03-10 17:36:24,037 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3445 to 2965. [2021-03-10 17:36:24,052 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2965 states, 2964 states have (on average 3.282388663967611) internal successors, (9729), 2964 states have internal predecessors, (9729), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:36:24,063 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2965 states to 2965 states and 9729 transitions. [2021-03-10 17:36:24,064 INFO L78 Accepts]: Start accepts. Automaton has 2965 states and 9729 transitions. Word has length 40 [2021-03-10 17:36:24,065 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:36:24,065 INFO L480 AbstractCegarLoop]: Abstraction has 2965 states and 9729 transitions. [2021-03-10 17:36:24,066 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 5.714285714285714) internal successors, (40), 7 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:36:24,068 INFO L276 IsEmpty]: Start isEmpty. Operand 2965 states and 9729 transitions. [2021-03-10 17:36:24,074 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2021-03-10 17:36:24,074 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:36:24,075 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:36:24,079 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-03-10 17:36:24,079 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-10 17:36:24,081 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:36:24,081 INFO L82 PathProgramCache]: Analyzing trace with hash -1240432320, now seen corresponding path program 1 times [2021-03-10 17:36:24,081 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:36:24,081 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2003104996] [2021-03-10 17:36:24,081 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:36:24,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:36:24,205 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:36:24,206 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2003104996] [2021-03-10 17:36:24,206 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:36:24,206 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-03-10 17:36:24,206 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [332667920] [2021-03-10 17:36:24,207 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-03-10 17:36:24,207 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:36:24,208 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-03-10 17:36:24,208 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-03-10 17:36:24,208 INFO L87 Difference]: Start difference. First operand 2965 states and 9729 transitions. Second operand has 6 states, 6 states have (on average 7.5) internal successors, (45), 6 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:36:24,398 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:36:24,398 INFO L93 Difference]: Finished difference Result 3785 states and 12195 transitions. [2021-03-10 17:36:24,398 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-03-10 17:36:24,399 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.5) internal successors, (45), 6 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 45 [2021-03-10 17:36:24,399 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:36:24,410 INFO L225 Difference]: With dead ends: 3785 [2021-03-10 17:36:24,410 INFO L226 Difference]: Without dead ends: 2637 [2021-03-10 17:36:24,412 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 150.9ms TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2021-03-10 17:36:24,418 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2637 states. [2021-03-10 17:36:24,468 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2637 to 2637. [2021-03-10 17:36:24,472 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2637 states, 2636 states have (on average 3.2177541729893777) internal successors, (8482), 2636 states have internal predecessors, (8482), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:36:24,480 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2637 states to 2637 states and 8482 transitions. [2021-03-10 17:36:24,480 INFO L78 Accepts]: Start accepts. Automaton has 2637 states and 8482 transitions. Word has length 45 [2021-03-10 17:36:24,481 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:36:24,481 INFO L480 AbstractCegarLoop]: Abstraction has 2637 states and 8482 transitions. [2021-03-10 17:36:24,481 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 7.5) internal successors, (45), 6 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:36:24,482 INFO L276 IsEmpty]: Start isEmpty. Operand 2637 states and 8482 transitions. [2021-03-10 17:36:24,487 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2021-03-10 17:36:24,487 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:36:24,487 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:36:24,488 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-03-10 17:36:24,488 INFO L428 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-10 17:36:24,488 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:36:24,488 INFO L82 PathProgramCache]: Analyzing trace with hash 572163811, now seen corresponding path program 1 times [2021-03-10 17:36:24,489 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:36:24,489 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2016626332] [2021-03-10 17:36:24,489 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:36:24,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:36:24,644 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:36:24,644 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2016626332] [2021-03-10 17:36:24,644 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:36:24,644 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-10 17:36:24,644 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1010037280] [2021-03-10 17:36:24,645 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-10 17:36:24,645 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:36:24,645 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-10 17:36:24,645 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-03-10 17:36:24,646 INFO L87 Difference]: Start difference. First operand 2637 states and 8482 transitions. Second operand has 7 states, 7 states have (on average 6.571428571428571) internal successors, (46), 7 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:36:24,802 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:36:24,802 INFO L93 Difference]: Finished difference Result 2739 states and 8526 transitions. [2021-03-10 17:36:24,802 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-03-10 17:36:24,803 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.571428571428571) internal successors, (46), 7 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 46 [2021-03-10 17:36:24,803 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:36:24,811 INFO L225 Difference]: With dead ends: 2739 [2021-03-10 17:36:24,812 INFO L226 Difference]: Without dead ends: 1815 [2021-03-10 17:36:24,812 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 133.0ms TimeCoverageRelationStatistics Valid=49, Invalid=107, Unknown=0, NotChecked=0, Total=156 [2021-03-10 17:36:24,816 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1815 states. [2021-03-10 17:36:24,839 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1815 to 1791. [2021-03-10 17:36:24,841 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1791 states, 1790 states have (on average 3.053072625698324) internal successors, (5465), 1790 states have internal predecessors, (5465), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:36:24,845 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1791 states to 1791 states and 5465 transitions. [2021-03-10 17:36:24,845 INFO L78 Accepts]: Start accepts. Automaton has 1791 states and 5465 transitions. Word has length 46 [2021-03-10 17:36:24,846 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:36:24,846 INFO L480 AbstractCegarLoop]: Abstraction has 1791 states and 5465 transitions. [2021-03-10 17:36:24,846 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 6.571428571428571) internal successors, (46), 7 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:36:24,846 INFO L276 IsEmpty]: Start isEmpty. Operand 1791 states and 5465 transitions. [2021-03-10 17:36:24,849 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2021-03-10 17:36:24,849 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:36:24,849 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:36:24,849 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-03-10 17:36:24,849 INFO L428 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-10 17:36:24,850 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:36:24,851 INFO L82 PathProgramCache]: Analyzing trace with hash -1964131836, now seen corresponding path program 1 times [2021-03-10 17:36:24,851 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:36:24,851 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [190478518] [2021-03-10 17:36:24,851 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:36:24,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:36:24,953 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:36:24,954 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [190478518] [2021-03-10 17:36:24,954 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:36:24,954 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-03-10 17:36:24,954 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [633287084] [2021-03-10 17:36:24,954 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-03-10 17:36:24,954 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:36:24,955 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-03-10 17:36:24,955 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-03-10 17:36:24,955 INFO L87 Difference]: Start difference. First operand 1791 states and 5465 transitions. Second operand has 6 states, 6 states have (on average 8.0) internal successors, (48), 6 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:36:25,047 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:36:25,047 INFO L93 Difference]: Finished difference Result 2859 states and 8734 transitions. [2021-03-10 17:36:25,047 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-03-10 17:36:25,048 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.0) internal successors, (48), 6 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 48 [2021-03-10 17:36:25,049 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:36:25,055 INFO L225 Difference]: With dead ends: 2859 [2021-03-10 17:36:25,056 INFO L226 Difference]: Without dead ends: 1731 [2021-03-10 17:36:25,056 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 80.7ms TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2021-03-10 17:36:25,060 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1731 states. [2021-03-10 17:36:25,081 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1731 to 1731. [2021-03-10 17:36:25,083 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1731 states, 1730 states have (on average 3.053757225433526) internal successors, (5283), 1730 states have internal predecessors, (5283), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:36:25,086 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1731 states to 1731 states and 5283 transitions. [2021-03-10 17:36:25,087 INFO L78 Accepts]: Start accepts. Automaton has 1731 states and 5283 transitions. Word has length 48 [2021-03-10 17:36:25,087 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:36:25,087 INFO L480 AbstractCegarLoop]: Abstraction has 1731 states and 5283 transitions. [2021-03-10 17:36:25,087 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 8.0) internal successors, (48), 6 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:36:25,087 INFO L276 IsEmpty]: Start isEmpty. Operand 1731 states and 5283 transitions. [2021-03-10 17:36:25,089 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2021-03-10 17:36:25,090 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:36:25,090 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:36:25,090 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-03-10 17:36:25,090 INFO L428 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-10 17:36:25,090 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:36:25,091 INFO L82 PathProgramCache]: Analyzing trace with hash -153741974, now seen corresponding path program 2 times [2021-03-10 17:36:25,091 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:36:25,091 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1396969009] [2021-03-10 17:36:25,091 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:36:25,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:36:25,196 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:36:25,198 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1396969009] [2021-03-10 17:36:25,198 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:36:25,198 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-03-10 17:36:25,199 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [72520121] [2021-03-10 17:36:25,200 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-10 17:36:25,200 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:36:25,200 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-10 17:36:25,200 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-03-10 17:36:25,201 INFO L87 Difference]: Start difference. First operand 1731 states and 5283 transitions. Second operand has 8 states, 8 states have (on average 6.0) internal successors, (48), 8 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:36:25,327 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:36:25,327 INFO L93 Difference]: Finished difference Result 1371 states and 4029 transitions. [2021-03-10 17:36:25,328 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-10 17:36:25,328 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.0) internal successors, (48), 8 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 48 [2021-03-10 17:36:25,328 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:36:25,331 INFO L225 Difference]: With dead ends: 1371 [2021-03-10 17:36:25,331 INFO L226 Difference]: Without dead ends: 807 [2021-03-10 17:36:25,331 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 100.1ms TimeCoverageRelationStatistics Valid=61, Invalid=149, Unknown=0, NotChecked=0, Total=210 [2021-03-10 17:36:25,333 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 807 states. [2021-03-10 17:36:25,341 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 807 to 775. [2021-03-10 17:36:25,342 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 775 states, 774 states have (on average 2.8320413436692506) internal successors, (2192), 774 states have internal predecessors, (2192), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:36:25,344 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 775 states to 775 states and 2192 transitions. [2021-03-10 17:36:25,344 INFO L78 Accepts]: Start accepts. Automaton has 775 states and 2192 transitions. Word has length 48 [2021-03-10 17:36:25,345 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:36:25,345 INFO L480 AbstractCegarLoop]: Abstraction has 775 states and 2192 transitions. [2021-03-10 17:36:25,345 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 6.0) internal successors, (48), 8 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:36:25,345 INFO L276 IsEmpty]: Start isEmpty. Operand 775 states and 2192 transitions. [2021-03-10 17:36:25,347 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2021-03-10 17:36:25,347 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:36:25,347 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:36:25,348 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-03-10 17:36:25,348 INFO L428 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-10 17:36:25,348 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:36:25,348 INFO L82 PathProgramCache]: Analyzing trace with hash 284341996, now seen corresponding path program 1 times [2021-03-10 17:36:25,348 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:36:25,348 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [635481457] [2021-03-10 17:36:25,348 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:36:25,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:36:25,458 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:36:25,458 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [635481457] [2021-03-10 17:36:25,458 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:36:25,459 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-10 17:36:25,459 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1895615829] [2021-03-10 17:36:25,459 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-10 17:36:25,459 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:36:25,459 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-10 17:36:25,459 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-03-10 17:36:25,459 INFO L87 Difference]: Start difference. First operand 775 states and 2192 transitions. Second operand has 7 states, 7 states have (on average 7.428571428571429) internal successors, (52), 7 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:36:25,548 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:36:25,548 INFO L93 Difference]: Finished difference Result 785 states and 2198 transitions. [2021-03-10 17:36:25,548 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-10 17:36:25,548 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.428571428571429) internal successors, (52), 7 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 52 [2021-03-10 17:36:25,549 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:36:25,549 INFO L225 Difference]: With dead ends: 785 [2021-03-10 17:36:25,549 INFO L226 Difference]: Without dead ends: 0 [2021-03-10 17:36:25,550 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 97.9ms TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2021-03-10 17:36:25,550 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-03-10 17:36:25,550 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-03-10 17:36:25,550 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:36:25,550 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-03-10 17:36:25,550 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 52 [2021-03-10 17:36:25,550 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:36:25,550 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-03-10 17:36:25,550 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 7.428571428571429) internal successors, (52), 7 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:36:25,550 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-03-10 17:36:25,550 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-03-10 17:36:25,550 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-03-10 17:36:25,554 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.03 05:36:25 BasicIcfg [2021-03-10 17:36:25,554 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-03-10 17:36:25,556 INFO L168 Benchmark]: Toolchain (without parser) took 4009.29 ms. Allocated memory was 352.3 MB in the beginning and 459.3 MB in the end (delta: 107.0 MB). Free memory was 315.6 MB in the beginning and 388.3 MB in the end (delta: -72.7 MB). Peak memory consumption was 36.0 MB. Max. memory is 16.0 GB. [2021-03-10 17:36:25,556 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 352.3 MB. Free memory was 333.8 MB in the beginning and 333.7 MB in the end (delta: 75.0 kB). There was no memory consumed. Max. memory is 16.0 GB. [2021-03-10 17:36:25,556 INFO L168 Benchmark]: CACSL2BoogieTranslator took 456.65 ms. Allocated memory is still 352.3 MB. Free memory was 315.0 MB in the beginning and 314.2 MB in the end (delta: 746.1 kB). Peak memory consumption was 7.5 MB. Max. memory is 16.0 GB. [2021-03-10 17:36:25,557 INFO L168 Benchmark]: Boogie Procedure Inliner took 42.75 ms. Allocated memory is still 352.3 MB. Free memory was 314.2 MB in the beginning and 312.1 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-03-10 17:36:25,558 INFO L168 Benchmark]: Boogie Preprocessor took 29.67 ms. Allocated memory is still 352.3 MB. Free memory was 312.1 MB in the beginning and 311.1 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-03-10 17:36:25,559 INFO L168 Benchmark]: RCFGBuilder took 322.86 ms. Allocated memory is still 352.3 MB. Free memory was 311.1 MB in the beginning and 285.9 MB in the end (delta: 25.2 MB). Peak memory consumption was 25.2 MB. Max. memory is 16.0 GB. [2021-03-10 17:36:25,560 INFO L168 Benchmark]: TraceAbstraction took 3147.40 ms. Allocated memory was 352.3 MB in the beginning and 459.3 MB in the end (delta: 107.0 MB). Free memory was 285.9 MB in the beginning and 388.3 MB in the end (delta: -102.4 MB). Peak memory consumption was 5.6 MB. Max. memory is 16.0 GB. [2021-03-10 17:36:25,566 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 ms. Allocated memory is still 352.3 MB. Free memory was 333.8 MB in the beginning and 333.7 MB in the end (delta: 75.0 kB). There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 456.65 ms. Allocated memory is still 352.3 MB. Free memory was 315.0 MB in the beginning and 314.2 MB in the end (delta: 746.1 kB). Peak memory consumption was 7.5 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 42.75 ms. Allocated memory is still 352.3 MB. Free memory was 314.2 MB in the beginning and 312.1 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 29.67 ms. Allocated memory is still 352.3 MB. Free memory was 312.1 MB in the beginning and 311.1 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * RCFGBuilder took 322.86 ms. Allocated memory is still 352.3 MB. Free memory was 311.1 MB in the beginning and 285.9 MB in the end (delta: 25.2 MB). Peak memory consumption was 25.2 MB. Max. memory is 16.0 GB. * TraceAbstraction took 3147.40 ms. Allocated memory was 352.3 MB in the beginning and 459.3 MB in the end (delta: 107.0 MB). Free memory was 285.9 MB in the beginning and 388.3 MB in the end (delta: -102.4 MB). Peak memory consumption was 5.6 MB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 18]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 74 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 3053.6ms, OverallIterations: 6, TraceHistogramMax: 1, EmptinessCheckTime: 71.5ms, AutomataDifference: 1250.9ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 419.5ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 534 SDtfs, 953 SDslu, 1719 SDs, 0 SdLazy, 281 SolverSat, 65 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 233.8ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 74 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 62 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 73 ImplicationChecksByTransitivity, 868.7ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=8819occurred in iteration=0, InterpolantAutomatonStates: 57, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 279.6ms AutomataMinimizationTime, 6 MinimizatonAttempts, 536 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 25.0ms SsaConstructionTime, 168.6ms SatisfiabilityAnalysisTime, 666.3ms InterpolantComputationTime, 279 NumberOfCodeBlocks, 279 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 273 ConstructedInterpolants, 0 QuantifiedInterpolants, 1125 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...