/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/safe008_tso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-770125f [2021-05-21 23:35:06,332 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-05-21 23:35:06,334 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-05-21 23:35:06,371 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-05-21 23:35:06,390 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-05-21 23:35:06,392 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-05-21 23:35:06,393 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-05-21 23:35:06,394 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-05-21 23:35:06,397 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-05-21 23:35:06,398 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-05-21 23:35:06,400 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-05-21 23:35:06,407 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-05-21 23:35:06,408 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-05-21 23:35:06,409 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-05-21 23:35:06,410 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-05-21 23:35:06,412 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-05-21 23:35:06,418 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-05-21 23:35:06,425 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-05-21 23:35:06,426 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-05-21 23:35:06,427 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-05-21 23:35:06,430 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 23:35:06,465 INFO L113 SettingsManager]: Loading preferences was successful [2021-05-21 23:35:06,465 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-05-21 23:35:06,466 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-05-21 23:35:06,466 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-05-21 23:35:06,468 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-05-21 23:35:06,468 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-05-21 23:35:06,469 INFO L138 SettingsManager]: * Use SBE=true [2021-05-21 23:35:06,469 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-05-21 23:35:06,469 INFO L138 SettingsManager]: * sizeof long=4 [2021-05-21 23:35:06,469 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-05-21 23:35:06,470 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-05-21 23:35:06,470 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-05-21 23:35:06,470 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-05-21 23:35:06,470 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-05-21 23:35:06,470 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-05-21 23:35:06,470 INFO L138 SettingsManager]: * sizeof long double=12 [2021-05-21 23:35:06,471 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-05-21 23:35:06,471 INFO L138 SettingsManager]: * Use constant arrays=true [2021-05-21 23:35:06,471 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-05-21 23:35:06,471 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-05-21 23:35:06,471 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-05-21 23:35:06,471 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-05-21 23:35:06,471 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-05-21 23:35:06,471 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-05-21 23:35:06,472 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-05-21 23:35:06,472 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-05-21 23:35:06,472 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-05-21 23:35:06,472 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-05-21 23:35:06,472 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-05-21 23:35:06,472 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-05-21 23:35:06,472 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-05-21 23:35:06,472 INFO L138 SettingsManager]: * Check the insufficient thread errors last=true [2021-05-21 23:35:06,473 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-05-21 23:35:06,814 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-05-21 23:35:06,831 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-05-21 23:35:06,833 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-05-21 23:35:06,834 INFO L271 PluginConnector]: Initializing CDTParser... [2021-05-21 23:35:06,835 INFO L275 PluginConnector]: CDTParser initialized [2021-05-21 23:35:06,836 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe008_tso.oepc.i [2021-05-21 23:35:06,890 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e2e198707/8d08e34a9040425aaf5e2cbd4d18e2e7/FLAG85c99694a [2021-05-21 23:35:07,421 INFO L306 CDTParser]: Found 1 translation units. [2021-05-21 23:35:07,421 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe008_tso.oepc.i [2021-05-21 23:35:07,435 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e2e198707/8d08e34a9040425aaf5e2cbd4d18e2e7/FLAG85c99694a [2021-05-21 23:35:07,726 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e2e198707/8d08e34a9040425aaf5e2cbd4d18e2e7 [2021-05-21 23:35:07,728 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-05-21 23:35:07,730 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-05-21 23:35:07,745 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-05-21 23:35:07,745 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-05-21 23:35:07,748 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-05-21 23:35:07,749 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.05 11:35:07" (1/1) ... [2021-05-21 23:35:07,750 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6154d2f2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.05 11:35:07, skipping insertion in model container [2021-05-21 23:35:07,750 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.05 11:35:07" (1/1) ... [2021-05-21 23:35:07,756 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-05-21 23:35:07,801 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-05-21 23:35:07,941 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/safe008_tso.oepc.i[950,963] [2021-05-21 23:35:08,095 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-05-21 23:35:08,102 INFO L203 MainTranslator]: Completed pre-run [2021-05-21 23:35:08,116 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/safe008_tso.oepc.i[950,963] [2021-05-21 23:35:08,169 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-05-21 23:35:08,240 INFO L208 MainTranslator]: Completed translation [2021-05-21 23:35:08,240 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.05 11:35:08 WrapperNode [2021-05-21 23:35:08,241 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-05-21 23:35:08,242 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-05-21 23:35:08,242 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-05-21 23:35:08,242 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-05-21 23:35:08,247 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.05 11:35:08" (1/1) ... [2021-05-21 23:35:08,278 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.05 11:35:08" (1/1) ... [2021-05-21 23:35:08,301 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-05-21 23:35:08,302 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-05-21 23:35:08,302 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-05-21 23:35:08,302 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-05-21 23:35:08,308 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.05 11:35:08" (1/1) ... [2021-05-21 23:35:08,309 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.05 11:35:08" (1/1) ... [2021-05-21 23:35:08,319 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.05 11:35:08" (1/1) ... [2021-05-21 23:35:08,320 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.05 11:35:08" (1/1) ... [2021-05-21 23:35:08,327 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.05 11:35:08" (1/1) ... [2021-05-21 23:35:08,333 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.05 11:35:08" (1/1) ... [2021-05-21 23:35:08,338 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.05 11:35:08" (1/1) ... [2021-05-21 23:35:08,340 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-05-21 23:35:08,341 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-05-21 23:35:08,341 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-05-21 23:35:08,341 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-05-21 23:35:08,341 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.05 11:35:08" (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 23:35:08,422 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-05-21 23:35:08,422 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-05-21 23:35:08,423 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-05-21 23:35:08,423 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-05-21 23:35:08,424 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2021-05-21 23:35:08,424 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2021-05-21 23:35:08,425 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2021-05-21 23:35:08,425 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2021-05-21 23:35:08,425 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2021-05-21 23:35:08,425 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2021-05-21 23:35:08,425 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-05-21 23:35:08,425 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-05-21 23:35:08,425 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-05-21 23:35:08,425 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-05-21 23:35:08,427 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 23:35:08,835 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-05-21 23:35:08,835 INFO L299 CfgBuilder]: Removed 8 assume(true) statements. [2021-05-21 23:35:08,837 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.05 11:35:08 BoogieIcfgContainer [2021-05-21 23:35:08,837 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-05-21 23:35:08,838 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-05-21 23:35:08,839 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-05-21 23:35:08,841 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-05-21 23:35:08,841 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.05 11:35:07" (1/3) ... [2021-05-21 23:35:08,842 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@733ddb3f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.05 11:35:08, skipping insertion in model container [2021-05-21 23:35:08,842 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.05 11:35:08" (2/3) ... [2021-05-21 23:35:08,842 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@733ddb3f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.05 11:35:08, skipping insertion in model container [2021-05-21 23:35:08,843 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.05 11:35:08" (3/3) ... [2021-05-21 23:35:08,844 INFO L111 eAbstractionObserver]: Analyzing ICFG safe008_tso.oepc.i [2021-05-21 23:35:08,849 WARN L148 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-05-21 23:35:08,849 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-05-21 23:35:08,849 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-05-21 23:35:08,850 INFO L478 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-05-21 23:35:08,874 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:35:08,874 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:35:08,875 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:35:08,875 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:35:08,875 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:35:08,875 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:35:08,875 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:35:08,875 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:35:08,876 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:35:08,876 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:35:08,876 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:35:08,876 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:35:08,877 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:35:08,877 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:35:08,877 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:35:08,877 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:35:08,877 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:35:08,877 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:35:08,878 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:35:08,878 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:35:08,878 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:35:08,878 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:35:08,878 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:35:08,878 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:35:08,879 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:35:08,879 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:35:08,879 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:35:08,879 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:35:08,879 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:35:08,880 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:35:08,880 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:35:08,880 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:35:08,880 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:35:08,880 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:35:08,880 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:35:08,881 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:35:08,882 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:35:08,883 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:35:08,883 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:35:08,883 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:35:08,887 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:35:08,887 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:35:08,888 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:35:08,888 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:35:08,890 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:35:08,890 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:35:08,890 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:35:08,890 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:35:08,892 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-05-21 23:35:08,911 INFO L255 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-05-21 23:35:08,927 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-05-21 23:35:08,928 INFO L379 AbstractCegarLoop]: Hoare is false [2021-05-21 23:35:08,928 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-05-21 23:35:08,928 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-05-21 23:35:08,928 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-05-21 23:35:08,928 INFO L383 AbstractCegarLoop]: Difference is false [2021-05-21 23:35:08,928 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-05-21 23:35:08,928 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-05-21 23:35:08,938 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 92 places, 84 transitions, 183 flow [2021-05-21 23:35:09,476 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 9332 states, 9330 states have (on average 3.562379421221865) internal successors, (33237), 9331 states have internal predecessors, (33237), 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 23:35:09,520 INFO L276 IsEmpty]: Start isEmpty. Operand has 9332 states, 9330 states have (on average 3.562379421221865) internal successors, (33237), 9331 states have internal predecessors, (33237), 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 23:35:09,558 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2021-05-21 23:35:09,558 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 23:35:09,559 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] [2021-05-21 23:35:09,559 INFO L430 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 23:35:09,566 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 23:35:09,567 INFO L82 PathProgramCache]: Analyzing trace with hash -1432389661, now seen corresponding path program 1 times [2021-05-21 23:35:09,574 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 23:35:09,574 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [51497324] [2021-05-21 23:35:09,575 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 23:35:09,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 23:35:09,928 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 23:35:09,928 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 23:35:09,929 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [51497324] [2021-05-21 23:35:09,929 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [51497324] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 23:35:09,929 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 23:35:09,930 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-05-21 23:35:09,930 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [679087011] [2021-05-21 23:35:09,934 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-05-21 23:35:09,935 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 23:35:09,945 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-05-21 23:35:09,946 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-05-21 23:35:09,968 INFO L87 Difference]: Start difference. First operand has 9332 states, 9330 states have (on average 3.562379421221865) internal successors, (33237), 9331 states have internal predecessors, (33237), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 7 states, 7 states have (on average 7.0) internal successors, (49), 7 states have internal predecessors, (49), 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 23:35:10,401 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 23:35:10,402 INFO L93 Difference]: Finished difference Result 17683 states and 60730 transitions. [2021-05-21 23:35:10,402 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-05-21 23:35:10,403 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.0) internal successors, (49), 7 states have internal predecessors, (49), 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 49 [2021-05-21 23:35:10,404 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 23:35:10,452 INFO L225 Difference]: With dead ends: 17683 [2021-05-21 23:35:10,453 INFO L226 Difference]: Without dead ends: 5788 [2021-05-21 23:35:10,454 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 193.0ms TimeCoverageRelationStatistics Valid=73, Invalid=137, Unknown=0, NotChecked=0, Total=210 [2021-05-21 23:35:10,493 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5788 states. [2021-05-21 23:35:10,719 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5788 to 4948. [2021-05-21 23:35:10,731 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4948 states, 4947 states have (on average 3.3480897513644634) internal successors, (16563), 4947 states have internal predecessors, (16563), 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 23:35:10,784 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4948 states to 4948 states and 16563 transitions. [2021-05-21 23:35:10,786 INFO L78 Accepts]: Start accepts. Automaton has 4948 states and 16563 transitions. Word has length 49 [2021-05-21 23:35:10,786 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 23:35:10,787 INFO L482 AbstractCegarLoop]: Abstraction has 4948 states and 16563 transitions. [2021-05-21 23:35:10,787 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 7.0) internal successors, (49), 7 states have internal predecessors, (49), 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 23:35:10,787 INFO L276 IsEmpty]: Start isEmpty. Operand 4948 states and 16563 transitions. [2021-05-21 23:35:10,796 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2021-05-21 23:35:10,797 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 23:35:10,797 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 23:35:10,797 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-05-21 23:35:10,797 INFO L430 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 23:35:10,798 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 23:35:10,798 INFO L82 PathProgramCache]: Analyzing trace with hash 1311501732, now seen corresponding path program 1 times [2021-05-21 23:35:10,798 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 23:35:10,799 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [473078477] [2021-05-21 23:35:10,799 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 23:35:10,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 23:35:10,995 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 23:35:10,995 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 23:35:10,995 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [473078477] [2021-05-21 23:35:10,996 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [473078477] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 23:35:10,996 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 23:35:10,996 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-05-21 23:35:10,996 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1848600393] [2021-05-21 23:35:10,997 INFO L462 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-05-21 23:35:10,997 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 23:35:10,998 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-05-21 23:35:10,998 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-05-21 23:35:10,998 INFO L87 Difference]: Start difference. First operand 4948 states and 16563 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 23:35:11,128 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 23:35:11,128 INFO L93 Difference]: Finished difference Result 5508 states and 18296 transitions. [2021-05-21 23:35:11,129 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-05-21 23:35:11,129 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 23:35:11,130 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 23:35:11,155 INFO L225 Difference]: With dead ends: 5508 [2021-05-21 23:35:11,155 INFO L226 Difference]: Without dead ends: 4528 [2021-05-21 23:35:11,156 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 162.5ms TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2021-05-21 23:35:11,174 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4528 states. [2021-05-21 23:35:11,294 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4528 to 4528. [2021-05-21 23:35:11,304 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4528 states, 4527 states have (on average 3.3194168323392974) internal successors, (15027), 4527 states have internal predecessors, (15027), 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 23:35:11,336 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4528 states to 4528 states and 15027 transitions. [2021-05-21 23:35:11,337 INFO L78 Accepts]: Start accepts. Automaton has 4528 states and 15027 transitions. Word has length 51 [2021-05-21 23:35:11,337 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 23:35:11,337 INFO L482 AbstractCegarLoop]: Abstraction has 4528 states and 15027 transitions. [2021-05-21 23:35:11,337 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 23:35:11,337 INFO L276 IsEmpty]: Start isEmpty. Operand 4528 states and 15027 transitions. [2021-05-21 23:35:11,347 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2021-05-21 23:35:11,348 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 23:35:11,348 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] [2021-05-21 23:35:11,348 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-05-21 23:35:11,348 INFO L430 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 23:35:11,349 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 23:35:11,349 INFO L82 PathProgramCache]: Analyzing trace with hash 742880451, now seen corresponding path program 1 times [2021-05-21 23:35:11,349 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 23:35:11,349 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1900915805] [2021-05-21 23:35:11,349 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 23:35:11,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 23:35:11,482 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 23:35:11,482 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 23:35:11,482 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1900915805] [2021-05-21 23:35:11,483 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1900915805] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 23:35:11,483 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 23:35:11,483 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-05-21 23:35:11,483 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1672816063] [2021-05-21 23:35:11,484 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-05-21 23:35:11,484 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 23:35:11,485 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-05-21 23:35:11,485 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-05-21 23:35:11,486 INFO L87 Difference]: Start difference. First operand 4528 states and 15027 transitions. Second operand has 7 states, 7 states have (on average 7.571428571428571) internal successors, (53), 7 states have internal predecessors, (53), 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 23:35:11,856 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 23:35:11,857 INFO L93 Difference]: Finished difference Result 7248 states and 23783 transitions. [2021-05-21 23:35:11,857 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-05-21 23:35:11,857 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.571428571428571) internal successors, (53), 7 states have internal predecessors, (53), 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 53 [2021-05-21 23:35:11,857 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 23:35:11,889 INFO L225 Difference]: With dead ends: 7248 [2021-05-21 23:35:11,889 INFO L226 Difference]: Without dead ends: 5848 [2021-05-21 23:35:11,889 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 304.5ms TimeCoverageRelationStatistics Valid=106, Invalid=236, Unknown=0, NotChecked=0, Total=342 [2021-05-21 23:35:11,908 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5848 states. [2021-05-21 23:35:12,048 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5848 to 4608. [2021-05-21 23:35:12,063 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4608 states, 4607 states have (on average 3.3169090514434556) internal successors, (15281), 4607 states have internal predecessors, (15281), 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 23:35:12,081 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4608 states to 4608 states and 15281 transitions. [2021-05-21 23:35:12,081 INFO L78 Accepts]: Start accepts. Automaton has 4608 states and 15281 transitions. Word has length 53 [2021-05-21 23:35:12,083 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 23:35:12,084 INFO L482 AbstractCegarLoop]: Abstraction has 4608 states and 15281 transitions. [2021-05-21 23:35:12,084 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 7.571428571428571) internal successors, (53), 7 states have internal predecessors, (53), 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 23:35:12,084 INFO L276 IsEmpty]: Start isEmpty. Operand 4608 states and 15281 transitions. [2021-05-21 23:35:12,096 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2021-05-21 23:35:12,096 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 23:35:12,096 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] [2021-05-21 23:35:12,096 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-05-21 23:35:12,097 INFO L430 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 23:35:12,098 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 23:35:12,098 INFO L82 PathProgramCache]: Analyzing trace with hash -904737545, now seen corresponding path program 2 times [2021-05-21 23:35:12,098 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 23:35:12,099 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [658873490] [2021-05-21 23:35:12,099 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 23:35:12,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 23:35:12,272 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 23:35:12,273 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 23:35:12,273 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [658873490] [2021-05-21 23:35:12,273 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [658873490] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 23:35:12,273 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 23:35:12,274 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-05-21 23:35:12,274 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [761438811] [2021-05-21 23:35:12,274 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-05-21 23:35:12,275 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 23:35:12,276 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-05-21 23:35:12,278 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-05-21 23:35:12,278 INFO L87 Difference]: Start difference. First operand 4608 states and 15281 transitions. Second operand has 7 states, 7 states have (on average 7.571428571428571) internal successors, (53), 7 states have internal predecessors, (53), 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 23:35:12,615 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 23:35:12,615 INFO L93 Difference]: Finished difference Result 8307 states and 27134 transitions. [2021-05-21 23:35:12,616 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-05-21 23:35:12,616 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.571428571428571) internal successors, (53), 7 states have internal predecessors, (53), 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 53 [2021-05-21 23:35:12,616 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 23:35:12,690 INFO L225 Difference]: With dead ends: 8307 [2021-05-21 23:35:12,690 INFO L226 Difference]: Without dead ends: 6107 [2021-05-21 23:35:12,691 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 54 ImplicationChecksByTransitivity, 262.7ms TimeCoverageRelationStatistics Valid=106, Invalid=236, Unknown=0, NotChecked=0, Total=342 [2021-05-21 23:35:12,715 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6107 states. [2021-05-21 23:35:12,808 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6107 to 4212. [2021-05-21 23:35:12,816 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4212 states, 4211 states have (on average 3.2825932082640703) internal successors, (13823), 4211 states have internal predecessors, (13823), 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 23:35:12,831 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4212 states to 4212 states and 13823 transitions. [2021-05-21 23:35:12,831 INFO L78 Accepts]: Start accepts. Automaton has 4212 states and 13823 transitions. Word has length 53 [2021-05-21 23:35:12,831 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 23:35:12,832 INFO L482 AbstractCegarLoop]: Abstraction has 4212 states and 13823 transitions. [2021-05-21 23:35:12,832 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 7.571428571428571) internal successors, (53), 7 states have internal predecessors, (53), 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 23:35:12,832 INFO L276 IsEmpty]: Start isEmpty. Operand 4212 states and 13823 transitions. [2021-05-21 23:35:12,841 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2021-05-21 23:35:12,841 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 23:35:12,842 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 23:35:12,842 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-05-21 23:35:12,842 INFO L430 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 23:35:12,842 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 23:35:12,842 INFO L82 PathProgramCache]: Analyzing trace with hash 1490806147, now seen corresponding path program 1 times [2021-05-21 23:35:12,843 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 23:35:12,843 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1654874293] [2021-05-21 23:35:12,843 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 23:35:12,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 23:35:12,949 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 23:35:12,950 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 23:35:12,950 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1654874293] [2021-05-21 23:35:12,950 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1654874293] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 23:35:12,950 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 23:35:12,950 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-05-21 23:35:12,950 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1833685946] [2021-05-21 23:35:12,951 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-05-21 23:35:12,952 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 23:35:12,952 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-05-21 23:35:12,953 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2021-05-21 23:35:12,953 INFO L87 Difference]: Start difference. First operand 4212 states and 13823 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 23:35:13,171 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 23:35:13,172 INFO L93 Difference]: Finished difference Result 6222 states and 20044 transitions. [2021-05-21 23:35:13,172 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-05-21 23:35:13,172 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 23:35:13,173 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 23:35:13,184 INFO L225 Difference]: With dead ends: 6222 [2021-05-21 23:35:13,184 INFO L226 Difference]: Without dead ends: 3293 [2021-05-21 23:35:13,184 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 129.0ms TimeCoverageRelationStatistics Valid=73, Invalid=137, Unknown=0, NotChecked=0, Total=210 [2021-05-21 23:35:13,195 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3293 states. [2021-05-21 23:35:13,244 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3293 to 2813. [2021-05-21 23:35:13,249 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2813 states, 2812 states have (on average 3.15398293029872) internal successors, (8869), 2812 states have internal predecessors, (8869), 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 23:35:13,258 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2813 states to 2813 states and 8869 transitions. [2021-05-21 23:35:13,258 INFO L78 Accepts]: Start accepts. Automaton has 2813 states and 8869 transitions. Word has length 54 [2021-05-21 23:35:13,258 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 23:35:13,259 INFO L482 AbstractCegarLoop]: Abstraction has 2813 states and 8869 transitions. [2021-05-21 23:35:13,259 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 23:35:13,259 INFO L276 IsEmpty]: Start isEmpty. Operand 2813 states and 8869 transitions. [2021-05-21 23:35:13,265 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2021-05-21 23:35:13,265 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 23:35:13,266 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 23:35:13,266 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-05-21 23:35:13,266 INFO L430 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 23:35:13,266 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 23:35:13,266 INFO L82 PathProgramCache]: Analyzing trace with hash -1323776860, now seen corresponding path program 1 times [2021-05-21 23:35:13,267 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 23:35:13,267 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [787976478] [2021-05-21 23:35:13,267 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 23:35:13,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 23:35:13,342 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 23:35:13,342 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 23:35:13,342 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [787976478] [2021-05-21 23:35:13,343 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [787976478] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 23:35:13,343 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 23:35:13,343 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-05-21 23:35:13,343 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1378348324] [2021-05-21 23:35:13,343 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-05-21 23:35:13,343 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 23:35:13,344 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-05-21 23:35:13,344 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-05-21 23:35:13,344 INFO L87 Difference]: Start difference. First operand 2813 states and 8869 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 23:35:13,466 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 23:35:13,467 INFO L93 Difference]: Finished difference Result 3221 states and 10023 transitions. [2021-05-21 23:35:13,467 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-05-21 23:35:13,467 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 23:35:13,468 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 23:35:13,472 INFO L225 Difference]: With dead ends: 3221 [2021-05-21 23:35:13,472 INFO L226 Difference]: Without dead ends: 1461 [2021-05-21 23:35:13,472 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 114.3ms TimeCoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182 [2021-05-21 23:35:13,477 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1461 states. [2021-05-21 23:35:13,500 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1461 to 1461. [2021-05-21 23:35:13,502 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1461 states, 1460 states have (on average 2.9404109589041094) internal successors, (4293), 1460 states have internal predecessors, (4293), 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 23:35:13,506 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1461 states to 1461 states and 4293 transitions. [2021-05-21 23:35:13,507 INFO L78 Accepts]: Start accepts. Automaton has 1461 states and 4293 transitions. Word has length 56 [2021-05-21 23:35:13,507 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 23:35:13,507 INFO L482 AbstractCegarLoop]: Abstraction has 1461 states and 4293 transitions. [2021-05-21 23:35:13,507 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 23:35:13,507 INFO L276 IsEmpty]: Start isEmpty. Operand 1461 states and 4293 transitions. [2021-05-21 23:35:13,510 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2021-05-21 23:35:13,510 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 23:35:13,510 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] [2021-05-21 23:35:13,511 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-05-21 23:35:13,511 INFO L430 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 23:35:13,511 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 23:35:13,511 INFO L82 PathProgramCache]: Analyzing trace with hash -4942770, now seen corresponding path program 1 times [2021-05-21 23:35:13,511 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 23:35:13,512 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [511759161] [2021-05-21 23:35:13,512 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 23:35:13,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 23:35:13,636 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 23:35:13,636 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 23:35:13,639 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [511759161] [2021-05-21 23:35:13,639 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [511759161] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 23:35:13,640 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 23:35:13,640 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-05-21 23:35:13,640 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1251368085] [2021-05-21 23:35:13,640 INFO L462 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-05-21 23:35:13,640 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 23:35:13,641 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-05-21 23:35:13,641 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-05-21 23:35:13,641 INFO L87 Difference]: Start difference. First operand 1461 states and 4293 transitions. Second operand has 6 states, 6 states have (on average 9.5) internal successors, (57), 6 states have internal predecessors, (57), 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 23:35:13,743 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 23:35:13,743 INFO L93 Difference]: Finished difference Result 1662 states and 4844 transitions. [2021-05-21 23:35:13,743 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-05-21 23:35:13,743 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.5) internal successors, (57), 6 states have internal predecessors, (57), 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 57 [2021-05-21 23:35:13,744 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 23:35:13,747 INFO L225 Difference]: With dead ends: 1662 [2021-05-21 23:35:13,747 INFO L226 Difference]: Without dead ends: 1326 [2021-05-21 23:35:13,748 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 87.0ms TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2021-05-21 23:35:13,752 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1326 states. [2021-05-21 23:35:13,770 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1326 to 1326. [2021-05-21 23:35:13,771 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1326 states, 1325 states have (on average 2.900377358490566) internal successors, (3843), 1325 states have internal predecessors, (3843), 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 23:35:13,774 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1326 states to 1326 states and 3843 transitions. [2021-05-21 23:35:13,774 INFO L78 Accepts]: Start accepts. Automaton has 1326 states and 3843 transitions. Word has length 57 [2021-05-21 23:35:13,774 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 23:35:13,774 INFO L482 AbstractCegarLoop]: Abstraction has 1326 states and 3843 transitions. [2021-05-21 23:35:13,774 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 9.5) internal successors, (57), 6 states have internal predecessors, (57), 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 23:35:13,775 INFO L276 IsEmpty]: Start isEmpty. Operand 1326 states and 3843 transitions. [2021-05-21 23:35:13,777 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2021-05-21 23:35:13,777 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 23:35:13,777 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 23:35:13,777 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-05-21 23:35:13,777 INFO L430 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 23:35:13,778 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 23:35:13,778 INFO L82 PathProgramCache]: Analyzing trace with hash 1433061019, now seen corresponding path program 1 times [2021-05-21 23:35:13,778 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 23:35:13,778 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [460707333] [2021-05-21 23:35:13,778 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 23:35:13,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 23:35:13,884 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 23:35:13,885 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 23:35:13,885 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [460707333] [2021-05-21 23:35:13,887 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [460707333] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 23:35:13,887 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 23:35:13,892 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-05-21 23:35:13,892 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1580521793] [2021-05-21 23:35:13,893 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-05-21 23:35:13,893 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 23:35:13,893 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-05-21 23:35:13,894 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-05-21 23:35:13,894 INFO L87 Difference]: Start difference. First operand 1326 states and 3843 transitions. Second operand has 7 states, 7 states have (on average 8.285714285714286) internal successors, (58), 7 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 23:35:14,003 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 23:35:14,004 INFO L93 Difference]: Finished difference Result 1218 states and 3423 transitions. [2021-05-21 23:35:14,004 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-05-21 23:35:14,004 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.285714285714286) internal successors, (58), 7 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 23:35:14,004 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 23:35:14,006 INFO L225 Difference]: With dead ends: 1218 [2021-05-21 23:35:14,007 INFO L226 Difference]: Without dead ends: 966 [2021-05-21 23:35:14,007 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 97.9ms TimeCoverageRelationStatistics Valid=49, Invalid=107, Unknown=0, NotChecked=0, Total=156 [2021-05-21 23:35:14,010 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 966 states. [2021-05-21 23:35:14,022 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 966 to 966. [2021-05-21 23:35:14,023 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 966 states, 965 states have (on average 2.75440414507772) internal successors, (2658), 965 states have internal predecessors, (2658), 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 23:35:14,025 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 966 states to 966 states and 2658 transitions. [2021-05-21 23:35:14,025 INFO L78 Accepts]: Start accepts. Automaton has 966 states and 2658 transitions. Word has length 58 [2021-05-21 23:35:14,025 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 23:35:14,025 INFO L482 AbstractCegarLoop]: Abstraction has 966 states and 2658 transitions. [2021-05-21 23:35:14,025 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 8.285714285714286) internal successors, (58), 7 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 23:35:14,026 INFO L276 IsEmpty]: Start isEmpty. Operand 966 states and 2658 transitions. [2021-05-21 23:35:14,027 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2021-05-21 23:35:14,028 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 23:35:14,028 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] [2021-05-21 23:35:14,028 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-05-21 23:35:14,028 INFO L430 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 23:35:14,028 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 23:35:14,028 INFO L82 PathProgramCache]: Analyzing trace with hash -385159466, now seen corresponding path program 1 times [2021-05-21 23:35:14,029 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 23:35:14,029 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [690082033] [2021-05-21 23:35:14,029 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 23:35:14,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 23:35:14,125 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 23:35:14,126 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 23:35:14,126 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [690082033] [2021-05-21 23:35:14,126 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [690082033] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 23:35:14,126 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 23:35:14,126 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-05-21 23:35:14,126 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1486634829] [2021-05-21 23:35:14,126 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-05-21 23:35:14,128 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 23:35:14,129 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-05-21 23:35:14,129 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-05-21 23:35:14,129 INFO L87 Difference]: Start difference. First operand 966 states and 2658 transitions. Second operand has 8 states, 8 states have (on average 7.375) internal successors, (59), 8 states have internal predecessors, (59), 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 23:35:14,202 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 23:35:14,202 INFO L93 Difference]: Finished difference Result 669 states and 1767 transitions. [2021-05-21 23:35:14,202 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-05-21 23:35:14,202 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.375) internal successors, (59), 8 states have internal predecessors, (59), 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 59 [2021-05-21 23:35:14,203 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 23:35:14,203 INFO L225 Difference]: With dead ends: 669 [2021-05-21 23:35:14,203 INFO L226 Difference]: Without dead ends: 0 [2021-05-21 23:35:14,203 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 93.0ms TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2021-05-21 23:35:14,203 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-05-21 23:35:14,203 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-05-21 23:35:14,204 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 23:35:14,204 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-05-21 23:35:14,204 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 59 [2021-05-21 23:35:14,204 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 23:35:14,204 INFO L482 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-05-21 23:35:14,204 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 7.375) internal successors, (59), 8 states have internal predecessors, (59), 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 23:35:14,204 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-05-21 23:35:14,204 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-05-21 23:35:14,204 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-05-21 23:35:14,205 INFO L315 ceAbstractionStarter]: Result for error location AllErrorsAtOnce was SAFE (1/2) [2021-05-21 23:35:14,207 INFO L255 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-05-21 23:35:14,208 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-05-21 23:35:14,208 INFO L379 AbstractCegarLoop]: Hoare is false [2021-05-21 23:35:14,208 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-05-21 23:35:14,208 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-05-21 23:35:14,208 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-05-21 23:35:14,208 INFO L383 AbstractCegarLoop]: Difference is false [2021-05-21 23:35:14,208 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-05-21 23:35:14,208 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == InUseError======== [2021-05-21 23:35:14,211 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 92 places, 84 transitions, 183 flow [2021-05-21 23:35:14,488 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 9332 states, 9330 states have (on average 3.562379421221865) internal successors, (33237), 9331 states have internal predecessors, (33237), 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 23:35:14,503 INFO L276 IsEmpty]: Start isEmpty. Operand has 9332 states, 9330 states have (on average 3.562379421221865) internal successors, (33237), 9331 states have internal predecessors, (33237), 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 23:35:14,554 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-05-21 23:35:14,554 INFO L315 ceAbstractionStarter]: Result for error location InUseError was SAFE (2/2) [2021-05-21 23:35:14,554 INFO L246 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-05-21 23:35:14,556 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.05 11:35:14 BasicIcfg [2021-05-21 23:35:14,557 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-05-21 23:35:14,557 INFO L168 Benchmark]: Toolchain (without parser) took 6827.50 ms. Allocated memory was 364.9 MB in the beginning and 1.6 GB in the end (delta: 1.2 GB). Free memory was 327.2 MB in the beginning and 1.3 GB in the end (delta: -989.1 MB). Peak memory consumption was 216.2 MB. Max. memory is 16.0 GB. [2021-05-21 23:35:14,558 INFO L168 Benchmark]: CDTParser took 0.15 ms. Allocated memory is still 364.9 MB. Free memory was 345.5 MB in the beginning and 345.5 MB in the end (delta: 70.4 kB). There was no memory consumed. Max. memory is 16.0 GB. [2021-05-21 23:35:14,558 INFO L168 Benchmark]: CACSL2BoogieTranslator took 495.97 ms. Allocated memory is still 364.9 MB. Free memory was 326.9 MB in the beginning and 327.8 MB in the end (delta: -893.3 kB). Peak memory consumption was 7.0 MB. Max. memory is 16.0 GB. [2021-05-21 23:35:14,558 INFO L168 Benchmark]: Boogie Procedure Inliner took 59.24 ms. Allocated memory is still 364.9 MB. Free memory was 327.8 MB in the beginning and 325.7 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-05-21 23:35:14,558 INFO L168 Benchmark]: Boogie Preprocessor took 38.45 ms. Allocated memory is still 364.9 MB. Free memory was 325.7 MB in the beginning and 324.7 MB in the end (delta: 1.0 MB). There was no memory consumed. Max. memory is 16.0 GB. [2021-05-21 23:35:14,558 INFO L168 Benchmark]: RCFGBuilder took 496.51 ms. Allocated memory is still 364.9 MB. Free memory was 324.7 MB in the beginning and 298.5 MB in the end (delta: 26.2 MB). Peak memory consumption was 27.3 MB. Max. memory is 16.0 GB. [2021-05-21 23:35:14,559 INFO L168 Benchmark]: TraceAbstraction took 5718.31 ms. Allocated memory was 364.9 MB in the beginning and 1.6 GB in the end (delta: 1.2 GB). Free memory was 298.5 MB in the beginning and 1.3 GB in the end (delta: -1.0 GB). Peak memory consumption was 188.1 MB. Max. memory is 16.0 GB. [2021-05-21 23:35:14,560 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15 ms. Allocated memory is still 364.9 MB. Free memory was 345.5 MB in the beginning and 345.5 MB in the end (delta: 70.4 kB). There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 495.97 ms. Allocated memory is still 364.9 MB. Free memory was 326.9 MB in the beginning and 327.8 MB in the end (delta: -893.3 kB). Peak memory consumption was 7.0 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 59.24 ms. Allocated memory is still 364.9 MB. Free memory was 327.8 MB in the beginning and 325.7 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 38.45 ms. Allocated memory is still 364.9 MB. Free memory was 325.7 MB in the beginning and 324.7 MB in the end (delta: 1.0 MB). There was no memory consumed. Max. memory is 16.0 GB. * RCFGBuilder took 496.51 ms. Allocated memory is still 364.9 MB. Free memory was 324.7 MB in the beginning and 298.5 MB in the end (delta: 26.2 MB). Peak memory consumption was 27.3 MB. Max. memory is 16.0 GB. * TraceAbstraction took 5718.31 ms. Allocated memory was 364.9 MB in the beginning and 1.6 GB in the end (delta: 1.2 GB). Free memory was 298.5 MB in the beginning and 1.3 GB in the end (delta: -1.0 GB). Peak memory consumption was 188.1 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, 107 locations, 4 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 5279.6ms, OverallIterations: 9, TraceHistogramMax: 1, EmptinessCheckTime: 136.3ms, AutomataDifference: 2157.6ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 548.0ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 941 SDtfs, 1694 SDslu, 3271 SDs, 0 SdLazy, 326 SolverSat, 52 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 269.3ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 130 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 112 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 203 ImplicationChecksByTransitivity, 1444.3ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=9332occurred in iteration=0, InterpolantAutomatonStates: 104, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 983.7ms AutomataMinimizationTime, 9 MinimizatonAttempts, 4455 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 31.5ms SsaConstructionTime, 163.6ms SatisfiabilityAnalysisTime, 1075.5ms InterpolantComputationTime, 490 NumberOfCodeBlocks, 490 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 481 ConstructedInterpolants, 0 QuantifiedInterpolants, 1981 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 9 InterpolantComputations, 9 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, 107 locations, 4 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 346.2ms, OverallIterations: 0, TraceHistogramMax: 0, EmptinessCheckTime: 65.8ms, AutomataDifference: 0.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 279.6ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=9332occurred 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...