/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-Separate.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-wmm/safe015_tso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-770125f [2021-05-21 23:36:05,280 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-05-21 23:36:05,284 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-05-21 23:36:05,304 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-05-21 23:36:05,310 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-05-21 23:36:05,310 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-05-21 23:36:05,311 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-05-21 23:36:05,312 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-05-21 23:36:05,312 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-05-21 23:36:05,313 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-05-21 23:36:05,314 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-05-21 23:36:05,315 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-05-21 23:36:05,316 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-05-21 23:36:05,317 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-05-21 23:36:05,317 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-05-21 23:36:05,318 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-05-21 23:36:05,319 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-05-21 23:36:05,324 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-05-21 23:36:05,325 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-05-21 23:36:05,325 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-05-21 23:36:05,329 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-Separate.epf [2021-05-21 23:36:05,348 INFO L113 SettingsManager]: Loading preferences was successful [2021-05-21 23:36:05,348 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-05-21 23:36:05,348 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-05-21 23:36:05,348 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-05-21 23:36:05,354 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-05-21 23:36:05,354 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-05-21 23:36:05,355 INFO L138 SettingsManager]: * Use SBE=true [2021-05-21 23:36:05,355 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-05-21 23:36:05,355 INFO L138 SettingsManager]: * sizeof long=4 [2021-05-21 23:36:05,355 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-05-21 23:36:05,356 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-05-21 23:36:05,356 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-05-21 23:36:05,356 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-05-21 23:36:05,356 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-05-21 23:36:05,356 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-05-21 23:36:05,356 INFO L138 SettingsManager]: * sizeof long double=12 [2021-05-21 23:36:05,356 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-05-21 23:36:05,356 INFO L138 SettingsManager]: * Use constant arrays=true [2021-05-21 23:36:05,356 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-05-21 23:36:05,357 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-05-21 23:36:05,357 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-05-21 23:36:05,357 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-05-21 23:36:05,357 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-05-21 23:36:05,357 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-05-21 23:36:05,357 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-05-21 23:36:05,357 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-05-21 23:36:05,357 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-05-21 23:36:05,357 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-05-21 23:36:05,357 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-05-21 23:36:05,358 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-05-21 23:36:05,358 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-05-21 23:36:05,358 INFO L138 SettingsManager]: * Check the insufficient thread errors last=true [2021-05-21 23:36:05,358 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-05-21 23:36:05,605 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-05-21 23:36:05,624 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-05-21 23:36:05,626 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-05-21 23:36:05,627 INFO L271 PluginConnector]: Initializing CDTParser... [2021-05-21 23:36:05,628 INFO L275 PluginConnector]: CDTParser initialized [2021-05-21 23:36:05,628 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe015_tso.oepc.i [2021-05-21 23:36:05,674 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ea9bf4b8f/77e6bf160e084e54b7e18999986f649f/FLAG876f902a1 [2021-05-21 23:36:06,078 INFO L306 CDTParser]: Found 1 translation units. [2021-05-21 23:36:06,079 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe015_tso.oepc.i [2021-05-21 23:36:06,108 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ea9bf4b8f/77e6bf160e084e54b7e18999986f649f/FLAG876f902a1 [2021-05-21 23:36:06,443 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ea9bf4b8f/77e6bf160e084e54b7e18999986f649f [2021-05-21 23:36:06,445 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-05-21 23:36:06,446 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-05-21 23:36:06,447 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-05-21 23:36:06,447 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-05-21 23:36:06,454 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-05-21 23:36:06,455 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.05 11:36:06" (1/1) ... [2021-05-21 23:36:06,455 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@59bd7eda and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.05 11:36:06, skipping insertion in model container [2021-05-21 23:36:06,456 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.05 11:36:06" (1/1) ... [2021-05-21 23:36:06,459 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-05-21 23:36:06,495 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-05-21 23:36:06,583 WARN L224 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe015_tso.oepc.i[950,963] [2021-05-21 23:36:06,735 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-05-21 23:36:06,740 INFO L203 MainTranslator]: Completed pre-run [2021-05-21 23:36:06,748 WARN L224 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe015_tso.oepc.i[950,963] [2021-05-21 23:36:06,775 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-05-21 23:36:06,821 INFO L208 MainTranslator]: Completed translation [2021-05-21 23:36:06,822 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.05 11:36:06 WrapperNode [2021-05-21 23:36:06,822 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-05-21 23:36:06,822 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-05-21 23:36:06,823 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-05-21 23:36:06,823 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-05-21 23:36:06,827 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.05 11:36:06" (1/1) ... [2021-05-21 23:36:06,848 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.05 11:36:06" (1/1) ... [2021-05-21 23:36:06,864 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-05-21 23:36:06,865 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-05-21 23:36:06,865 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-05-21 23:36:06,865 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-05-21 23:36:06,870 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.05 11:36:06" (1/1) ... [2021-05-21 23:36:06,870 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.05 11:36:06" (1/1) ... [2021-05-21 23:36:06,883 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.05 11:36:06" (1/1) ... [2021-05-21 23:36:06,883 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.05 11:36:06" (1/1) ... [2021-05-21 23:36:06,886 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.05 11:36:06" (1/1) ... [2021-05-21 23:36:06,887 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.05 11:36:06" (1/1) ... [2021-05-21 23:36:06,888 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.05 11:36:06" (1/1) ... [2021-05-21 23:36:06,890 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-05-21 23:36:06,890 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-05-21 23:36:06,890 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-05-21 23:36:06,890 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-05-21 23:36:06,891 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.05 11:36:06" (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 [2021-05-21 23:36:06,956 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-05-21 23:36:06,956 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-05-21 23:36:06,957 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-05-21 23:36:06,957 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-05-21 23:36:06,958 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2021-05-21 23:36:06,958 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2021-05-21 23:36:06,958 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2021-05-21 23:36:06,958 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2021-05-21 23:36:06,958 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2021-05-21 23:36:06,959 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2021-05-21 23:36:06,959 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-05-21 23:36:06,959 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-05-21 23:36:06,959 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-05-21 23:36:06,959 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-05-21 23:36:06,960 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-05-21 23:36:07,287 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-05-21 23:36:07,288 INFO L299 CfgBuilder]: Removed 8 assume(true) statements. [2021-05-21 23:36:07,290 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.05 11:36:07 BoogieIcfgContainer [2021-05-21 23:36:07,290 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-05-21 23:36:07,291 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-05-21 23:36:07,291 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-05-21 23:36:07,293 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-05-21 23:36:07,293 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.05 11:36:06" (1/3) ... [2021-05-21 23:36:07,294 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@e2d7e3e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.05 11:36:07, skipping insertion in model container [2021-05-21 23:36:07,294 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.05 11:36:06" (2/3) ... [2021-05-21 23:36:07,294 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@e2d7e3e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.05 11:36:07, skipping insertion in model container [2021-05-21 23:36:07,294 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.05 11:36:07" (3/3) ... [2021-05-21 23:36:07,295 INFO L111 eAbstractionObserver]: Analyzing ICFG safe015_tso.oepc.i [2021-05-21 23:36:07,301 WARN L148 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-05-21 23:36:07,301 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-05-21 23:36:07,302 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-05-21 23:36:07,302 INFO L478 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-05-21 23:36:07,329 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:36:07,330 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:36:07,330 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:36:07,330 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:36:07,330 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:36:07,330 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:36:07,331 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:36:07,331 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:36:07,331 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:36:07,331 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:36:07,331 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:36:07,331 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:36:07,332 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:36:07,332 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:36:07,332 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:36:07,332 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:36:07,333 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:36:07,333 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:36:07,333 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:36:07,333 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:36:07,336 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:36:07,336 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:36:07,336 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:36:07,337 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:36:07,340 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:36:07,340 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:36:07,340 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:36:07,340 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:36:07,340 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:36:07,340 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:36:07,341 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:36:07,341 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:36:07,341 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:36:07,341 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:36:07,342 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:36:07,342 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:36:07,343 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:36:07,343 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:36:07,344 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:36:07,344 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:36:07,347 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:36:07,348 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:36:07,348 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:36:07,348 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:36:07,349 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:36:07,350 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:36:07,350 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:36:07,350 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:36:07,353 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-05-21 23:36:07,368 INFO L255 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-05-21 23:36:07,390 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-05-21 23:36:07,390 INFO L379 AbstractCegarLoop]: Hoare is false [2021-05-21 23:36:07,390 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-05-21 23:36:07,391 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-05-21 23:36:07,391 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-05-21 23:36:07,391 INFO L383 AbstractCegarLoop]: Difference is false [2021-05-21 23:36:07,391 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-05-21 23:36:07,391 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-05-21 23:36:07,401 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 91 places, 83 transitions, 181 flow [2021-05-21 23:36:07,783 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 9331 states, 9329 states have (on average 3.5626540893986496) internal successors, (33236), 9330 states have internal predecessors, (33236), 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) [2021-05-21 23:36:07,818 INFO L276 IsEmpty]: Start isEmpty. Operand has 9331 states, 9329 states have (on average 3.5626540893986496) internal successors, (33236), 9330 states have internal predecessors, (33236), 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) [2021-05-21 23:36:07,852 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2021-05-21 23:36:07,852 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 23:36:07,853 INFO L521 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] [2021-05-21 23:36:07,853 INFO L430 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 23:36:07,857 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 23:36:07,857 INFO L82 PathProgramCache]: Analyzing trace with hash 1572123417, now seen corresponding path program 1 times [2021-05-21 23:36:07,864 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 23:36:07,865 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1996627745] [2021-05-21 23:36:07,865 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 23:36:07,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 23:36:08,114 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 23:36:08,114 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 23:36:08,115 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1996627745] [2021-05-21 23:36:08,115 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1996627745] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 23:36:08,115 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 23:36:08,115 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-05-21 23:36:08,116 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1053631100] [2021-05-21 23:36:08,118 INFO L462 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-05-21 23:36:08,118 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 23:36:08,128 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-05-21 23:36:08,129 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-05-21 23:36:08,154 INFO L87 Difference]: Start difference. First operand has 9331 states, 9329 states have (on average 3.5626540893986496) internal successors, (33236), 9330 states have internal predecessors, (33236), 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 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) [2021-05-21 23:36:08,527 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 23:36:08,528 INFO L93 Difference]: Finished difference Result 21088 states and 72805 transitions. [2021-05-21 23:36:08,529 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-05-21 23:36:08,530 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 [2021-05-21 23:36:08,530 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 23:36:08,577 INFO L225 Difference]: With dead ends: 21088 [2021-05-21 23:36:08,577 INFO L226 Difference]: Without dead ends: 7140 [2021-05-21 23:36:08,578 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 145.0ms TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2021-05-21 23:36:08,670 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7140 states. [2021-05-21 23:36:08,903 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7140 to 6006. [2021-05-21 23:36:08,914 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6006 states, 6005 states have (on average 3.33488759367194) internal successors, (20026), 6005 states have internal predecessors, (20026), 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) [2021-05-21 23:36:08,934 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6006 states to 6006 states and 20026 transitions. [2021-05-21 23:36:08,935 INFO L78 Accepts]: Start accepts. Automaton has 6006 states and 20026 transitions. Word has length 48 [2021-05-21 23:36:08,935 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 23:36:08,935 INFO L482 AbstractCegarLoop]: Abstraction has 6006 states and 20026 transitions. [2021-05-21 23:36:08,936 INFO L483 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) [2021-05-21 23:36:08,936 INFO L276 IsEmpty]: Start isEmpty. Operand 6006 states and 20026 transitions. [2021-05-21 23:36:08,943 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2021-05-21 23:36:08,943 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 23:36:08,944 INFO L521 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] [2021-05-21 23:36:08,944 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-05-21 23:36:08,944 INFO L430 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 23:36:08,944 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 23:36:08,944 INFO L82 PathProgramCache]: Analyzing trace with hash -396116582, now seen corresponding path program 1 times [2021-05-21 23:36:08,945 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 23:36:08,945 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1390553411] [2021-05-21 23:36:08,945 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 23:36:08,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 23:36:09,089 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 23:36:09,089 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 23:36:09,089 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1390553411] [2021-05-21 23:36:09,089 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1390553411] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 23:36:09,089 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 23:36:09,089 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-05-21 23:36:09,090 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [158487993] [2021-05-21 23:36:09,090 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-05-21 23:36:09,091 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 23:36:09,091 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-05-21 23:36:09,091 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-05-21 23:36:09,091 INFO L87 Difference]: Start difference. First operand 6006 states and 20026 transitions. Second operand has 7 states, 7 states have (on average 7.142857142857143) internal successors, (50), 7 states have internal predecessors, (50), 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) [2021-05-21 23:36:09,333 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 23:36:09,334 INFO L93 Difference]: Finished difference Result 8410 states and 27696 transitions. [2021-05-21 23:36:09,334 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-05-21 23:36:09,334 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.142857142857143) internal successors, (50), 7 states have internal predecessors, (50), 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 50 [2021-05-21 23:36:09,335 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 23:36:09,362 INFO L225 Difference]: With dead ends: 8410 [2021-05-21 23:36:09,362 INFO L226 Difference]: Without dead ends: 6474 [2021-05-21 23:36:09,363 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 135.7ms TimeCoverageRelationStatistics Valid=73, Invalid=137, Unknown=0, NotChecked=0, Total=210 [2021-05-21 23:36:09,380 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6474 states. [2021-05-21 23:36:09,496 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6474 to 5338. [2021-05-21 23:36:09,503 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5338 states, 5337 states have (on average 3.3041034288926365) internal successors, (17634), 5337 states have internal predecessors, (17634), 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) [2021-05-21 23:36:09,517 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5338 states to 5338 states and 17634 transitions. [2021-05-21 23:36:09,518 INFO L78 Accepts]: Start accepts. Automaton has 5338 states and 17634 transitions. Word has length 50 [2021-05-21 23:36:09,518 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 23:36:09,518 INFO L482 AbstractCegarLoop]: Abstraction has 5338 states and 17634 transitions. [2021-05-21 23:36:09,519 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 7.142857142857143) internal successors, (50), 7 states have internal predecessors, (50), 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) [2021-05-21 23:36:09,519 INFO L276 IsEmpty]: Start isEmpty. Operand 5338 states and 17634 transitions. [2021-05-21 23:36:09,526 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2021-05-21 23:36:09,527 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 23:36:09,527 INFO L521 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] [2021-05-21 23:36:09,527 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-05-21 23:36:09,527 INFO L430 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 23:36:09,528 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 23:36:09,528 INFO L82 PathProgramCache]: Analyzing trace with hash -1823781980, now seen corresponding path program 1 times [2021-05-21 23:36:09,528 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 23:36:09,528 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [209046686] [2021-05-21 23:36:09,528 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 23:36:09,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 23:36:09,620 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 23:36:09,620 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 23:36:09,620 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [209046686] [2021-05-21 23:36:09,621 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [209046686] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 23:36:09,621 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 23:36:09,621 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-05-21 23:36:09,621 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [413987444] [2021-05-21 23:36:09,621 INFO L462 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-05-21 23:36:09,621 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 23:36:09,622 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-05-21 23:36:09,622 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-05-21 23:36:09,623 INFO L87 Difference]: Start difference. First operand 5338 states and 17634 transitions. Second operand has 6 states, 6 states have (on average 8.5) internal successors, (51), 6 states have internal predecessors, (51), 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) [2021-05-21 23:36:09,770 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 23:36:09,771 INFO L93 Difference]: Finished difference Result 5866 states and 19257 transitions. [2021-05-21 23:36:09,771 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-05-21 23:36:09,771 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.5) internal successors, (51), 6 states have internal predecessors, (51), 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 51 [2021-05-21 23:36:09,772 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 23:36:09,797 INFO L225 Difference]: With dead ends: 5866 [2021-05-21 23:36:09,797 INFO L226 Difference]: Without dead ends: 4942 [2021-05-21 23:36:09,797 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 121.8ms TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2021-05-21 23:36:09,810 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4942 states. [2021-05-21 23:36:09,891 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4942 to 4551. [2021-05-21 23:36:09,897 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4551 states, 4550 states have (on average 3.291208791208791) internal successors, (14975), 4550 states have internal predecessors, (14975), 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) [2021-05-21 23:36:09,912 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4551 states to 4551 states and 14975 transitions. [2021-05-21 23:36:09,912 INFO L78 Accepts]: Start accepts. Automaton has 4551 states and 14975 transitions. Word has length 51 [2021-05-21 23:36:09,914 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 23:36:09,914 INFO L482 AbstractCegarLoop]: Abstraction has 4551 states and 14975 transitions. [2021-05-21 23:36:09,914 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 8.5) internal successors, (51), 6 states have internal predecessors, (51), 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) [2021-05-21 23:36:09,914 INFO L276 IsEmpty]: Start isEmpty. Operand 4551 states and 14975 transitions. [2021-05-21 23:36:09,922 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2021-05-21 23:36:09,922 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 23:36:09,923 INFO L521 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] [2021-05-21 23:36:09,923 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-05-21 23:36:09,923 INFO L430 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 23:36:09,924 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 23:36:09,924 INFO L82 PathProgramCache]: Analyzing trace with hash 1772356823, now seen corresponding path program 1 times [2021-05-21 23:36:09,924 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 23:36:09,924 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1485246779] [2021-05-21 23:36:09,924 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 23:36:09,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 23:36:10,021 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 23:36:10,021 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 23:36:10,021 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1485246779] [2021-05-21 23:36:10,021 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1485246779] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 23:36:10,021 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 23:36:10,022 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-05-21 23:36:10,022 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [883532465] [2021-05-21 23:36:10,022 INFO L462 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-05-21 23:36:10,022 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 23:36:10,082 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-05-21 23:36:10,082 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-05-21 23:36:10,082 INFO L87 Difference]: Start difference. First operand 4551 states and 14975 transitions. Second operand has 6 states, 6 states have (on average 8.666666666666666) internal successors, (52), 6 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) [2021-05-21 23:36:10,185 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 23:36:10,186 INFO L93 Difference]: Finished difference Result 5143 states and 16830 transitions. [2021-05-21 23:36:10,186 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-05-21 23:36:10,186 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.666666666666666) internal successors, (52), 6 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 [2021-05-21 23:36:10,186 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 23:36:10,197 INFO L225 Difference]: With dead ends: 5143 [2021-05-21 23:36:10,197 INFO L226 Difference]: Without dead ends: 4443 [2021-05-21 23:36:10,198 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 85.2ms TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2021-05-21 23:36:10,208 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4443 states. [2021-05-21 23:36:10,263 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4443 to 4427. [2021-05-21 23:36:10,269 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4427 states, 4426 states have (on average 3.2790329868956167) internal successors, (14513), 4426 states have internal predecessors, (14513), 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) [2021-05-21 23:36:10,280 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4427 states to 4427 states and 14513 transitions. [2021-05-21 23:36:10,280 INFO L78 Accepts]: Start accepts. Automaton has 4427 states and 14513 transitions. Word has length 52 [2021-05-21 23:36:10,280 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 23:36:10,280 INFO L482 AbstractCegarLoop]: Abstraction has 4427 states and 14513 transitions. [2021-05-21 23:36:10,281 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 8.666666666666666) internal successors, (52), 6 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) [2021-05-21 23:36:10,281 INFO L276 IsEmpty]: Start isEmpty. Operand 4427 states and 14513 transitions. [2021-05-21 23:36:10,288 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2021-05-21 23:36:10,288 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 23:36:10,288 INFO L521 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, 1, 1] [2021-05-21 23:36:10,289 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-05-21 23:36:10,289 INFO L430 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 23:36:10,289 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 23:36:10,289 INFO L82 PathProgramCache]: Analyzing trace with hash -1730681128, now seen corresponding path program 1 times [2021-05-21 23:36:10,289 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 23:36:10,290 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [817076312] [2021-05-21 23:36:10,290 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 23:36:10,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 23:36:10,375 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 23:36:10,375 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 23:36:10,375 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [817076312] [2021-05-21 23:36:10,376 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [817076312] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 23:36:10,376 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 23:36:10,376 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-05-21 23:36:10,376 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2093880271] [2021-05-21 23:36:10,376 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-05-21 23:36:10,376 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 23:36:10,377 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-05-21 23:36:10,377 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-05-21 23:36:10,377 INFO L87 Difference]: Start difference. First operand 4427 states and 14513 transitions. Second operand has 7 states, 7 states have (on average 7.714285714285714) internal successors, (54), 7 states have internal predecessors, (54), 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) [2021-05-21 23:36:10,598 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 23:36:10,598 INFO L93 Difference]: Finished difference Result 6233 states and 20189 transitions. [2021-05-21 23:36:10,599 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-05-21 23:36:10,599 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.714285714285714) internal successors, (54), 7 states have internal predecessors, (54), 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 54 [2021-05-21 23:36:10,599 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 23:36:10,610 INFO L225 Difference]: With dead ends: 6233 [2021-05-21 23:36:10,611 INFO L226 Difference]: Without dead ends: 5349 [2021-05-21 23:36:10,611 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 134.9ms TimeCoverageRelationStatistics Valid=73, Invalid=137, Unknown=0, NotChecked=0, Total=210 [2021-05-21 23:36:10,622 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5349 states. [2021-05-21 23:36:10,675 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5349 to 4205. [2021-05-21 23:36:10,680 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4205 states, 4204 states have (on average 3.2649857278782113) internal successors, (13726), 4204 states have internal predecessors, (13726), 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) [2021-05-21 23:36:10,689 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4205 states to 4205 states and 13726 transitions. [2021-05-21 23:36:10,689 INFO L78 Accepts]: Start accepts. Automaton has 4205 states and 13726 transitions. Word has length 54 [2021-05-21 23:36:10,689 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 23:36:10,689 INFO L482 AbstractCegarLoop]: Abstraction has 4205 states and 13726 transitions. [2021-05-21 23:36:10,690 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 7.714285714285714) internal successors, (54), 7 states have internal predecessors, (54), 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) [2021-05-21 23:36:10,690 INFO L276 IsEmpty]: Start isEmpty. Operand 4205 states and 13726 transitions. [2021-05-21 23:36:10,697 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2021-05-21 23:36:10,697 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 23:36:10,697 INFO L521 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, 1, 1] [2021-05-21 23:36:10,697 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-05-21 23:36:10,697 INFO L430 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 23:36:10,698 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 23:36:10,698 INFO L82 PathProgramCache]: Analyzing trace with hash 245526365, now seen corresponding path program 1 times [2021-05-21 23:36:10,698 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 23:36:10,698 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [235704388] [2021-05-21 23:36:10,698 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 23:36:10,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 23:36:10,789 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 23:36:10,789 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 23:36:10,789 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [235704388] [2021-05-21 23:36:10,789 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [235704388] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 23:36:10,790 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 23:36:10,790 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-05-21 23:36:10,790 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1175994905] [2021-05-21 23:36:10,790 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-05-21 23:36:10,790 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 23:36:10,790 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-05-21 23:36:10,790 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2021-05-21 23:36:10,791 INFO L87 Difference]: Start difference. First operand 4205 states and 13726 transitions. Second operand has 8 states, 8 states have (on average 6.75) internal successors, (54), 8 states have internal predecessors, (54), 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) [2021-05-21 23:36:10,904 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 23:36:10,904 INFO L93 Difference]: Finished difference Result 7461 states and 24155 transitions. [2021-05-21 23:36:10,904 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-05-21 23:36:10,904 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.75) internal successors, (54), 8 states have internal predecessors, (54), 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 54 [2021-05-21 23:36:10,905 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 23:36:10,916 INFO L225 Difference]: With dead ends: 7461 [2021-05-21 23:36:10,916 INFO L226 Difference]: Without dead ends: 5277 [2021-05-21 23:36:10,916 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 66.9ms TimeCoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2021-05-21 23:36:10,927 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5277 states. [2021-05-21 23:36:10,976 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5277 to 4205. [2021-05-21 23:36:10,981 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4205 states, 4204 states have (on average 3.2516650808753567) internal successors, (13670), 4204 states have internal predecessors, (13670), 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) [2021-05-21 23:36:10,989 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4205 states to 4205 states and 13670 transitions. [2021-05-21 23:36:10,989 INFO L78 Accepts]: Start accepts. Automaton has 4205 states and 13670 transitions. Word has length 54 [2021-05-21 23:36:10,990 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 23:36:10,990 INFO L482 AbstractCegarLoop]: Abstraction has 4205 states and 13670 transitions. [2021-05-21 23:36:10,990 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 6.75) internal successors, (54), 8 states have internal predecessors, (54), 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) [2021-05-21 23:36:10,990 INFO L276 IsEmpty]: Start isEmpty. Operand 4205 states and 13670 transitions. [2021-05-21 23:36:10,996 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2021-05-21 23:36:10,996 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 23:36:10,996 INFO L521 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, 1, 1] [2021-05-21 23:36:10,997 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-05-21 23:36:10,997 INFO L430 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 23:36:10,997 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 23:36:10,997 INFO L82 PathProgramCache]: Analyzing trace with hash 192553753, now seen corresponding path program 2 times [2021-05-21 23:36:10,997 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 23:36:10,997 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1855880022] [2021-05-21 23:36:10,997 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 23:36:11,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 23:36:11,052 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 23:36:11,052 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 23:36:11,052 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1855880022] [2021-05-21 23:36:11,052 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1855880022] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 23:36:11,052 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 23:36:11,052 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-05-21 23:36:11,053 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1026851510] [2021-05-21 23:36:11,053 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-05-21 23:36:11,053 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 23:36:11,053 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-05-21 23:36:11,053 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-05-21 23:36:11,054 INFO L87 Difference]: Start difference. First operand 4205 states and 13670 transitions. Second operand has 7 states, 7 states have (on average 7.714285714285714) internal successors, (54), 7 states have internal predecessors, (54), 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) [2021-05-21 23:36:11,199 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 23:36:11,199 INFO L93 Difference]: Finished difference Result 7356 states and 23632 transitions. [2021-05-21 23:36:11,200 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-05-21 23:36:11,200 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.714285714285714) internal successors, (54), 7 states have internal predecessors, (54), 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 54 [2021-05-21 23:36:11,200 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 23:36:11,211 INFO L225 Difference]: With dead ends: 7356 [2021-05-21 23:36:11,212 INFO L226 Difference]: Without dead ends: 5468 [2021-05-21 23:36:11,212 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 113.2ms TimeCoverageRelationStatistics Valid=73, Invalid=137, Unknown=0, NotChecked=0, Total=210 [2021-05-21 23:36:11,222 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5468 states. [2021-05-21 23:36:11,298 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5468 to 3757. [2021-05-21 23:36:11,302 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3757 states, 3756 states have (on average 3.198615548455804) internal successors, (12014), 3756 states have internal predecessors, (12014), 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) [2021-05-21 23:36:11,310 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3757 states to 3757 states and 12014 transitions. [2021-05-21 23:36:11,310 INFO L78 Accepts]: Start accepts. Automaton has 3757 states and 12014 transitions. Word has length 54 [2021-05-21 23:36:11,311 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 23:36:11,311 INFO L482 AbstractCegarLoop]: Abstraction has 3757 states and 12014 transitions. [2021-05-21 23:36:11,311 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 7.714285714285714) internal successors, (54), 7 states have internal predecessors, (54), 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) [2021-05-21 23:36:11,311 INFO L276 IsEmpty]: Start isEmpty. Operand 3757 states and 12014 transitions. [2021-05-21 23:36:11,317 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2021-05-21 23:36:11,317 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 23:36:11,317 INFO L521 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, 1, 1, 1] [2021-05-21 23:36:11,317 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-05-21 23:36:11,317 INFO L430 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 23:36:11,318 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 23:36:11,318 INFO L82 PathProgramCache]: Analyzing trace with hash -663113566, now seen corresponding path program 1 times [2021-05-21 23:36:11,318 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 23:36:11,318 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [371646353] [2021-05-21 23:36:11,318 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 23:36:11,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 23:36:11,368 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 23:36:11,368 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 23:36:11,368 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [371646353] [2021-05-21 23:36:11,369 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [371646353] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 23:36:11,369 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 23:36:11,369 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-05-21 23:36:11,369 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1905564309] [2021-05-21 23:36:11,369 INFO L462 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-05-21 23:36:11,369 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 23:36:11,370 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-05-21 23:36:11,370 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-05-21 23:36:11,370 INFO L87 Difference]: Start difference. First operand 3757 states and 12014 transitions. Second operand has 6 states, 6 states have (on average 9.166666666666666) internal successors, (55), 6 states have internal predecessors, (55), 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) [2021-05-21 23:36:11,461 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 23:36:11,461 INFO L93 Difference]: Finished difference Result 4785 states and 15081 transitions. [2021-05-21 23:36:11,461 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-05-21 23:36:11,462 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.166666666666666) internal successors, (55), 6 states have internal predecessors, (55), 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 55 [2021-05-21 23:36:11,462 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 23:36:11,469 INFO L225 Difference]: With dead ends: 4785 [2021-05-21 23:36:11,469 INFO L226 Difference]: Without dead ends: 3413 [2021-05-21 23:36:11,469 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 65.7ms TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2021-05-21 23:36:11,476 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3413 states. [2021-05-21 23:36:11,515 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3413 to 3413. [2021-05-21 23:36:11,519 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3413 states, 3412 states have (on average 3.138335287221571) internal successors, (10708), 3412 states have internal predecessors, (10708), 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) [2021-05-21 23:36:11,527 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3413 states to 3413 states and 10708 transitions. [2021-05-21 23:36:11,527 INFO L78 Accepts]: Start accepts. Automaton has 3413 states and 10708 transitions. Word has length 55 [2021-05-21 23:36:11,527 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 23:36:11,527 INFO L482 AbstractCegarLoop]: Abstraction has 3413 states and 10708 transitions. [2021-05-21 23:36:11,527 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 9.166666666666666) internal successors, (55), 6 states have internal predecessors, (55), 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) [2021-05-21 23:36:11,528 INFO L276 IsEmpty]: Start isEmpty. Operand 3413 states and 10708 transitions. [2021-05-21 23:36:11,532 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2021-05-21 23:36:11,532 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 23:36:11,533 INFO L521 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, 1, 1, 1, 1] [2021-05-21 23:36:11,533 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-05-21 23:36:11,533 INFO L430 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 23:36:11,533 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 23:36:11,533 INFO L82 PathProgramCache]: Analyzing trace with hash 328653495, now seen corresponding path program 1 times [2021-05-21 23:36:11,533 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 23:36:11,534 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1190491520] [2021-05-21 23:36:11,534 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 23:36:11,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 23:36:11,586 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 23:36:11,587 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 23:36:11,587 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1190491520] [2021-05-21 23:36:11,587 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1190491520] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 23:36:11,587 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 23:36:11,587 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-05-21 23:36:11,587 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2013142179] [2021-05-21 23:36:11,588 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-05-21 23:36:11,588 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 23:36:11,588 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-05-21 23:36:11,588 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-05-21 23:36:11,588 INFO L87 Difference]: Start difference. First operand 3413 states and 10708 transitions. Second operand has 7 states, 7 states have (on average 8.0) internal successors, (56), 7 states have internal predecessors, (56), 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) [2021-05-21 23:36:11,691 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 23:36:11,691 INFO L93 Difference]: Finished difference Result 3665 states and 11239 transitions. [2021-05-21 23:36:11,692 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-05-21 23:36:11,692 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.0) internal successors, (56), 7 states have internal predecessors, (56), 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 56 [2021-05-21 23:36:11,692 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 23:36:11,697 INFO L225 Difference]: With dead ends: 3665 [2021-05-21 23:36:11,697 INFO L226 Difference]: Without dead ends: 2537 [2021-05-21 23:36:11,697 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 77.4ms TimeCoverageRelationStatistics Valid=49, Invalid=107, Unknown=0, NotChecked=0, Total=156 [2021-05-21 23:36:11,702 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2537 states. [2021-05-21 23:36:11,728 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2537 to 2537. [2021-05-21 23:36:11,730 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2537 states, 2536 states have (on average 3.0149842271293377) internal successors, (7646), 2536 states have internal predecessors, (7646), 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) [2021-05-21 23:36:11,735 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2537 states to 2537 states and 7646 transitions. [2021-05-21 23:36:11,735 INFO L78 Accepts]: Start accepts. Automaton has 2537 states and 7646 transitions. Word has length 56 [2021-05-21 23:36:11,736 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 23:36:11,736 INFO L482 AbstractCegarLoop]: Abstraction has 2537 states and 7646 transitions. [2021-05-21 23:36:11,736 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 8.0) internal successors, (56), 7 states have internal predecessors, (56), 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) [2021-05-21 23:36:11,736 INFO L276 IsEmpty]: Start isEmpty. Operand 2537 states and 7646 transitions. [2021-05-21 23:36:11,739 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2021-05-21 23:36:11,739 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 23:36:11,739 INFO L521 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, 1, 1, 1, 1, 1, 1] [2021-05-21 23:36:11,739 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-05-21 23:36:11,740 INFO L430 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 23:36:11,740 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 23:36:11,740 INFO L82 PathProgramCache]: Analyzing trace with hash -372773896, now seen corresponding path program 1 times [2021-05-21 23:36:11,740 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 23:36:11,740 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2085486758] [2021-05-21 23:36:11,740 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 23:36:11,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 23:36:11,796 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 23:36:11,797 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 23:36:11,797 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2085486758] [2021-05-21 23:36:11,797 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2085486758] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 23:36:11,797 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 23:36:11,797 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-05-21 23:36:11,797 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1358622154] [2021-05-21 23:36:11,797 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-05-21 23:36:11,797 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 23:36:11,798 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-05-21 23:36:11,798 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-05-21 23:36:11,798 INFO L87 Difference]: Start difference. First operand 2537 states and 7646 transitions. Second operand has 8 states, 8 states have (on average 7.25) internal successors, (58), 8 states have internal predecessors, (58), 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) [2021-05-21 23:36:11,913 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 23:36:11,913 INFO L93 Difference]: Finished difference Result 2267 states and 6701 transitions. [2021-05-21 23:36:11,913 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-05-21 23:36:11,913 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.25) internal successors, (58), 8 states have internal predecessors, (58), 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 58 [2021-05-21 23:36:11,914 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 23:36:11,915 INFO L225 Difference]: With dead ends: 2267 [2021-05-21 23:36:11,915 INFO L226 Difference]: Without dead ends: 846 [2021-05-21 23:36:11,916 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 86.8ms TimeCoverageRelationStatistics Valid=61, Invalid=149, Unknown=0, NotChecked=0, Total=210 [2021-05-21 23:36:11,917 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 846 states. [2021-05-21 23:36:11,924 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 846 to 846. [2021-05-21 23:36:11,924 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 846 states, 845 states have (on average 2.902958579881657) internal successors, (2453), 845 states have internal predecessors, (2453), 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) [2021-05-21 23:36:11,926 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 846 states to 846 states and 2453 transitions. [2021-05-21 23:36:11,926 INFO L78 Accepts]: Start accepts. Automaton has 846 states and 2453 transitions. Word has length 58 [2021-05-21 23:36:11,926 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 23:36:11,926 INFO L482 AbstractCegarLoop]: Abstraction has 846 states and 2453 transitions. [2021-05-21 23:36:11,926 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 7.25) internal successors, (58), 8 states have internal predecessors, (58), 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) [2021-05-21 23:36:11,926 INFO L276 IsEmpty]: Start isEmpty. Operand 846 states and 2453 transitions. [2021-05-21 23:36:11,927 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2021-05-21 23:36:11,927 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 23:36:11,927 INFO L521 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, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-21 23:36:11,927 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-05-21 23:36:11,927 INFO L430 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 23:36:11,928 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 23:36:11,928 INFO L82 PathProgramCache]: Analyzing trace with hash -625056731, now seen corresponding path program 1 times [2021-05-21 23:36:11,928 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 23:36:11,928 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [277637476] [2021-05-21 23:36:11,929 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 23:36:11,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 23:36:11,998 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 23:36:11,998 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 23:36:11,998 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [277637476] [2021-05-21 23:36:11,998 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [277637476] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 23:36:11,998 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 23:36:11,999 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-05-21 23:36:11,999 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1511243933] [2021-05-21 23:36:11,999 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-05-21 23:36:11,999 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 23:36:11,999 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-05-21 23:36:11,999 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2021-05-21 23:36:11,999 INFO L87 Difference]: Start difference. First operand 846 states and 2453 transitions. Second operand has 8 states, 8 states have (on average 7.5) internal successors, (60), 8 states have internal predecessors, (60), 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) [2021-05-21 23:36:12,061 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 23:36:12,061 INFO L93 Difference]: Finished difference Result 1329 states and 3894 transitions. [2021-05-21 23:36:12,068 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-05-21 23:36:12,069 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.5) internal successors, (60), 8 states have internal predecessors, (60), 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 60 [2021-05-21 23:36:12,069 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 23:36:12,070 INFO L225 Difference]: With dead ends: 1329 [2021-05-21 23:36:12,070 INFO L226 Difference]: Without dead ends: 804 [2021-05-21 23:36:12,071 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 69.7ms TimeCoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2021-05-21 23:36:12,072 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 804 states. [2021-05-21 23:36:12,078 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 804 to 804. [2021-05-21 23:36:12,079 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 804 states, 803 states have (on average 2.8779576587795765) internal successors, (2311), 803 states have internal predecessors, (2311), 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) [2021-05-21 23:36:12,080 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 804 states to 804 states and 2311 transitions. [2021-05-21 23:36:12,080 INFO L78 Accepts]: Start accepts. Automaton has 804 states and 2311 transitions. Word has length 60 [2021-05-21 23:36:12,080 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 23:36:12,080 INFO L482 AbstractCegarLoop]: Abstraction has 804 states and 2311 transitions. [2021-05-21 23:36:12,080 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 7.5) internal successors, (60), 8 states have internal predecessors, (60), 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) [2021-05-21 23:36:12,080 INFO L276 IsEmpty]: Start isEmpty. Operand 804 states and 2311 transitions. [2021-05-21 23:36:12,084 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2021-05-21 23:36:12,084 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 23:36:12,084 INFO L521 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, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-21 23:36:12,085 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-05-21 23:36:12,085 INFO L430 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 23:36:12,085 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 23:36:12,085 INFO L82 PathProgramCache]: Analyzing trace with hash -1424861539, now seen corresponding path program 2 times [2021-05-21 23:36:12,085 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 23:36:12,085 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [418835279] [2021-05-21 23:36:12,085 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 23:36:12,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 23:36:12,164 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 23:36:12,164 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 23:36:12,165 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [418835279] [2021-05-21 23:36:12,165 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [418835279] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 23:36:12,165 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 23:36:12,165 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-05-21 23:36:12,165 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1603450494] [2021-05-21 23:36:12,165 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-05-21 23:36:12,165 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 23:36:12,165 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-05-21 23:36:12,165 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2021-05-21 23:36:12,166 INFO L87 Difference]: Start difference. First operand 804 states and 2311 transitions. Second operand has 8 states, 8 states have (on average 7.5) internal successors, (60), 8 states have internal predecessors, (60), 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) [2021-05-21 23:36:12,212 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 23:36:12,213 INFO L93 Difference]: Finished difference Result 750 states and 2149 transitions. [2021-05-21 23:36:12,213 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-05-21 23:36:12,213 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.5) internal successors, (60), 8 states have internal predecessors, (60), 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 60 [2021-05-21 23:36:12,213 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 23:36:12,213 INFO L225 Difference]: With dead ends: 750 [2021-05-21 23:36:12,213 INFO L226 Difference]: Without dead ends: 0 [2021-05-21 23:36:12,213 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 61.0ms TimeCoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2021-05-21 23:36:12,213 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-05-21 23:36:12,213 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-05-21 23:36:12,213 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) [2021-05-21 23:36:12,214 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-05-21 23:36:12,214 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 60 [2021-05-21 23:36:12,214 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 23:36:12,214 INFO L482 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-05-21 23:36:12,214 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 7.5) internal successors, (60), 8 states have internal predecessors, (60), 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) [2021-05-21 23:36:12,214 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-05-21 23:36:12,214 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-05-21 23:36:12,214 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-05-21 23:36:12,214 INFO L315 ceAbstractionStarter]: Result for error location AllErrorsAtOnce was SAFE (1/2) [2021-05-21 23:36:12,216 INFO L255 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-05-21 23:36:12,216 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-05-21 23:36:12,216 INFO L379 AbstractCegarLoop]: Hoare is false [2021-05-21 23:36:12,216 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-05-21 23:36:12,216 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-05-21 23:36:12,216 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-05-21 23:36:12,216 INFO L383 AbstractCegarLoop]: Difference is false [2021-05-21 23:36:12,216 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-05-21 23:36:12,216 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == InUseError======== [2021-05-21 23:36:12,217 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 91 places, 83 transitions, 181 flow [2021-05-21 23:36:12,432 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 9331 states, 9329 states have (on average 3.5626540893986496) internal successors, (33236), 9330 states have internal predecessors, (33236), 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) [2021-05-21 23:36:12,448 INFO L276 IsEmpty]: Start isEmpty. Operand has 9331 states, 9329 states have (on average 3.5626540893986496) internal successors, (33236), 9330 states have internal predecessors, (33236), 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) [2021-05-21 23:36:12,478 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-05-21 23:36:12,478 INFO L315 ceAbstractionStarter]: Result for error location InUseError was SAFE (2/2) [2021-05-21 23:36:12,478 INFO L246 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-05-21 23:36:12,480 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.05 11:36:12 BasicIcfg [2021-05-21 23:36:12,480 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-05-21 23:36:12,481 INFO L168 Benchmark]: Toolchain (without parser) took 6035.29 ms. Allocated memory was 333.4 MB in the beginning and 1.5 GB in the end (delta: 1.1 GB). Free memory was 297.2 MB in the beginning and 1.1 GB in the end (delta: -779.9 MB). Peak memory consumption was 351.8 MB. Max. memory is 16.0 GB. [2021-05-21 23:36:12,481 INFO L168 Benchmark]: CDTParser took 0.11 ms. Allocated memory is still 333.4 MB. Free memory was 314.9 MB in the beginning and 314.8 MB in the end (delta: 76.3 kB). There was no memory consumed. Max. memory is 16.0 GB. [2021-05-21 23:36:12,481 INFO L168 Benchmark]: CACSL2BoogieTranslator took 375.27 ms. Allocated memory is still 333.4 MB. Free memory was 296.9 MB in the beginning and 295.4 MB in the end (delta: 1.6 MB). Peak memory consumption was 9.3 MB. Max. memory is 16.0 GB. [2021-05-21 23:36:12,482 INFO L168 Benchmark]: Boogie Procedure Inliner took 41.86 ms. Allocated memory is still 333.4 MB. Free memory was 295.4 MB in the beginning and 293.3 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-05-21 23:36:12,482 INFO L168 Benchmark]: Boogie Preprocessor took 24.98 ms. Allocated memory is still 333.4 MB. Free memory was 293.3 MB in the beginning and 292.2 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-05-21 23:36:12,482 INFO L168 Benchmark]: RCFGBuilder took 399.68 ms. Allocated memory is still 333.4 MB. Free memory was 292.2 MB in the beginning and 267.0 MB in the end (delta: 25.2 MB). Peak memory consumption was 25.2 MB. Max. memory is 16.0 GB. [2021-05-21 23:36:12,482 INFO L168 Benchmark]: TraceAbstraction took 5189.56 ms. Allocated memory was 333.4 MB in the beginning and 1.5 GB in the end (delta: 1.1 GB). Free memory was 267.0 MB in the beginning and 1.1 GB in the end (delta: -810.0 MB). Peak memory consumption was 321.4 MB. Max. memory is 16.0 GB. [2021-05-21 23:36:12,483 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11 ms. Allocated memory is still 333.4 MB. Free memory was 314.9 MB in the beginning and 314.8 MB in the end (delta: 76.3 kB). There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 375.27 ms. Allocated memory is still 333.4 MB. Free memory was 296.9 MB in the beginning and 295.4 MB in the end (delta: 1.6 MB). Peak memory consumption was 9.3 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 41.86 ms. Allocated memory is still 333.4 MB. Free memory was 295.4 MB in the beginning and 293.3 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 24.98 ms. Allocated memory is still 333.4 MB. Free memory was 293.3 MB in the beginning and 292.2 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * RCFGBuilder took 399.68 ms. Allocated memory is still 333.4 MB. Free memory was 292.2 MB in the beginning and 267.0 MB in the end (delta: 25.2 MB). Peak memory consumption was 25.2 MB. Max. memory is 16.0 GB. * TraceAbstraction took 5189.56 ms. Allocated memory was 333.4 MB in the beginning and 1.5 GB in the end (delta: 1.1 GB). Free memory was 267.0 MB in the beginning and 1.1 GB in the end (delta: -810.0 MB). Peak memory consumption was 321.4 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 - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 106 locations, 4 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 4825.8ms, OverallIterations: 12, TraceHistogramMax: 1, EmptinessCheckTime: 134.1ms, AutomataDifference: 2048.6ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 392.0ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 1322 SDtfs, 1837 SDslu, 4592 SDs, 0 SdLazy, 553 SolverSat, 104 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 372.0ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 153 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 129 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 153 ImplicationChecksByTransitivity, 1163.7ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=9331occurred in iteration=0, InterpolantAutomatonStates: 121, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 1064.4ms AutomataMinimizationTime, 12 MinimizatonAttempts, 6604 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 27.3ms SsaConstructionTime, 174.6ms SatisfiabilityAnalysisTime, 825.6ms InterpolantComputationTime, 652 NumberOfCodeBlocks, 652 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 640 ConstructedInterpolants, 0 QuantifiedInterpolants, 2968 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 12 InterpolantComputations, 12 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 - StatisticsResult: Ultimate Automizer benchmark data for thread instance sufficiency with 1 thread instances CFG has 7 procedures, 106 locations, 4 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 262.1ms, OverallIterations: 0, TraceHistogramMax: 0, EmptinessCheckTime: 45.4ms, AutomataDifference: 0.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 216.2ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=9331occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! Received shutdown request...