/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-wmm/safe014_tso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-29289db [2021-06-05 00:12:40,133 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-06-05 00:12:40,135 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-06-05 00:12:40,166 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-06-05 00:12:40,208 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe.epf [2021-06-05 00:12:40,236 INFO L113 SettingsManager]: Loading preferences was successful [2021-06-05 00:12:40,237 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-06-05 00:12:40,237 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-06-05 00:12:40,237 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-06-05 00:12:40,239 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-06-05 00:12:40,239 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-06-05 00:12:40,239 INFO L138 SettingsManager]: * Use SBE=true [2021-06-05 00:12:40,240 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-06-05 00:12:40,240 INFO L138 SettingsManager]: * sizeof long=4 [2021-06-05 00:12:40,240 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-06-05 00:12:40,240 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-06-05 00:12:40,241 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-06-05 00:12:40,241 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-06-05 00:12:40,241 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-06-05 00:12:40,241 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-06-05 00:12:40,241 INFO L138 SettingsManager]: * sizeof long double=12 [2021-06-05 00:12:40,241 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-06-05 00:12:40,241 INFO L138 SettingsManager]: * Use constant arrays=true [2021-06-05 00:12:40,241 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-06-05 00:12:40,241 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-06-05 00:12:40,242 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-06-05 00:12:40,242 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-06-05 00:12:40,242 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-06-05 00:12:40,242 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-06-05 00:12:40,242 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-06-05 00:12:40,242 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-06-05 00:12:40,242 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-06-05 00:12:40,242 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-06-05 00:12:40,242 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-06-05 00:12:40,243 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-06-05 00:12:40,243 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-06-05 00:12:40,243 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-06-05 00:12:40,508 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-06-05 00:12:40,520 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-06-05 00:12:40,522 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-06-05 00:12:40,523 INFO L271 PluginConnector]: Initializing CDTParser... [2021-06-05 00:12:40,523 INFO L275 PluginConnector]: CDTParser initialized [2021-06-05 00:12:40,524 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe014_tso.oepc.i [2021-06-05 00:12:40,568 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d6b09bec9/bb0c453553b94c7c9d640914f94328bf/FLAGd0d7ea985 [2021-06-05 00:12:40,980 INFO L306 CDTParser]: Found 1 translation units. [2021-06-05 00:12:40,980 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe014_tso.oepc.i [2021-06-05 00:12:40,995 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d6b09bec9/bb0c453553b94c7c9d640914f94328bf/FLAGd0d7ea985 [2021-06-05 00:12:41,332 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d6b09bec9/bb0c453553b94c7c9d640914f94328bf [2021-06-05 00:12:41,333 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-06-05 00:12:41,334 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-06-05 00:12:41,337 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-06-05 00:12:41,337 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-06-05 00:12:41,340 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-06-05 00:12:41,341 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.06 12:12:41" (1/1) ... [2021-06-05 00:12:41,341 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4306aee7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 12:12:41, skipping insertion in model container [2021-06-05 00:12:41,342 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.06 12:12:41" (1/1) ... [2021-06-05 00:12:41,346 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-06-05 00:12:41,387 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-06-05 00:12:41,492 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/safe014_tso.oepc.i[950,963] [2021-06-05 00:12:41,651 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-06-05 00:12:41,658 INFO L203 MainTranslator]: Completed pre-run [2021-06-05 00:12:41,667 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/safe014_tso.oepc.i[950,963] [2021-06-05 00:12:41,698 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-06-05 00:12:41,747 INFO L208 MainTranslator]: Completed translation [2021-06-05 00:12:41,747 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 12:12:41 WrapperNode [2021-06-05 00:12:41,747 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-06-05 00:12:41,748 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-06-05 00:12:41,749 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-06-05 00:12:41,749 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-06-05 00:12:41,753 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 12:12:41" (1/1) ... [2021-06-05 00:12:41,776 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 12:12:41" (1/1) ... [2021-06-05 00:12:41,793 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-06-05 00:12:41,794 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-06-05 00:12:41,794 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-06-05 00:12:41,794 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-06-05 00:12:41,799 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 12:12:41" (1/1) ... [2021-06-05 00:12:41,799 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 12:12:41" (1/1) ... [2021-06-05 00:12:41,808 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 12:12:41" (1/1) ... [2021-06-05 00:12:41,808 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 12:12:41" (1/1) ... [2021-06-05 00:12:41,818 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 12:12:41" (1/1) ... [2021-06-05 00:12:41,819 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 12:12:41" (1/1) ... [2021-06-05 00:12:41,821 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 12:12:41" (1/1) ... [2021-06-05 00:12:41,822 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-06-05 00:12:41,823 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-06-05 00:12:41,823 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-06-05 00:12:41,823 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-06-05 00:12:41,823 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 12:12:41" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-06-05 00:12:41,903 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-06-05 00:12:41,904 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-06-05 00:12:41,904 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-06-05 00:12:41,905 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-06-05 00:12:41,905 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2021-06-05 00:12:41,906 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2021-06-05 00:12:41,907 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2021-06-05 00:12:41,907 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2021-06-05 00:12:41,907 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2021-06-05 00:12:41,907 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2021-06-05 00:12:41,907 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-06-05 00:12:41,907 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-06-05 00:12:41,907 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-06-05 00:12:41,907 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-06-05 00:12:41,909 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-06-05 00:12:42,305 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-06-05 00:12:42,305 INFO L299 CfgBuilder]: Removed 8 assume(true) statements. [2021-06-05 00:12:42,307 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.06 12:12:42 BoogieIcfgContainer [2021-06-05 00:12:42,307 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-06-05 00:12:42,308 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-06-05 00:12:42,309 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-06-05 00:12:42,310 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-06-05 00:12:42,311 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 05.06 12:12:41" (1/3) ... [2021-06-05 00:12:42,311 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@20508ac0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.06 12:12:42, skipping insertion in model container [2021-06-05 00:12:42,311 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 12:12:41" (2/3) ... [2021-06-05 00:12:42,312 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@20508ac0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.06 12:12:42, skipping insertion in model container [2021-06-05 00:12:42,312 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.06 12:12:42" (3/3) ... [2021-06-05 00:12:42,313 INFO L111 eAbstractionObserver]: Analyzing ICFG safe014_tso.oepc.i [2021-06-05 00:12:42,317 WARN L148 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-06-05 00:12:42,317 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-06-05 00:12:42,317 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-06-05 00:12:42,317 INFO L510 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-06-05 00:12:42,348 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:12:42,349 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:12:42,349 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:12:42,349 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:12:42,349 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:12:42,349 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:12:42,349 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:12:42,349 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:12:42,350 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:12:42,350 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:12:42,350 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:12:42,350 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:12:42,350 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:12:42,350 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:12:42,350 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:12:42,351 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:12:42,351 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:12:42,352 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:12:42,352 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:12:42,352 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:12:42,355 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:12:42,355 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:12:42,356 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:12:42,356 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:12:42,357 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:12:42,357 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:12:42,357 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:12:42,357 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:12:42,357 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:12:42,357 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:12:42,357 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:12:42,358 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:12:42,358 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:12:42,358 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:12:42,358 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:12:42,358 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:12:42,360 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:12:42,361 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:12:42,361 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:12:42,361 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:12:42,366 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:12:42,366 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:12:42,366 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:12:42,366 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:12:42,368 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:12:42,368 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:12:42,368 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:12:42,369 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:12:42,372 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-06-05 00:12:42,387 INFO L255 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2021-06-05 00:12:42,399 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-06-05 00:12:42,400 INFO L379 AbstractCegarLoop]: Hoare is false [2021-06-05 00:12:42,400 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-06-05 00:12:42,400 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-06-05 00:12:42,400 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-06-05 00:12:42,400 INFO L383 AbstractCegarLoop]: Difference is false [2021-06-05 00:12:42,400 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-06-05 00:12:42,400 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-06-05 00:12:42,407 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 92 places, 84 transitions, 183 flow [2021-06-05 00:12:42,756 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) [2021-06-05 00:12:42,792 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) [2021-06-05 00:12:42,819 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2021-06-05 00:12:42,819 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:12:42,820 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] [2021-06-05 00:12:42,820 INFO L430 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:12:42,826 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:12:42,826 INFO L82 PathProgramCache]: Analyzing trace with hash 663437649, now seen corresponding path program 1 times [2021-06-05 00:12:42,832 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:12:42,833 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2128341644] [2021-06-05 00:12:42,833 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:12:42,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:12:43,220 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:12:43,221 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:12:43,221 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2128341644] [2021-06-05 00:12:43,221 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2128341644] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:12:43,222 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:12:43,222 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-06-05 00:12:43,223 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [35128541] [2021-06-05 00:12:43,226 INFO L462 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-06-05 00:12:43,226 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:12:43,236 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-06-05 00:12:43,237 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-06-05 00:12:43,254 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 6 states, 6 states have (on average 8.166666666666666) internal successors, (49), 6 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) [2021-06-05 00:12:43,632 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:12:43,633 INFO L93 Difference]: Finished difference Result 21089 states and 72806 transitions. [2021-06-05 00:12:43,633 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 00:12:43,634 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.166666666666666) internal successors, (49), 6 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 [2021-06-05 00:12:43,636 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:12:43,692 INFO L225 Difference]: With dead ends: 21089 [2021-06-05 00:12:43,693 INFO L226 Difference]: Without dead ends: 7269 [2021-06-05 00:12:43,694 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 113.4ms TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2021-06-05 00:12:43,736 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7269 states. [2021-06-05 00:12:43,917 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7269 to 6135. [2021-06-05 00:12:43,931 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6135 states, 6134 states have (on average 3.373165960221715) internal successors, (20691), 6134 states have internal predecessors, (20691), 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) [2021-06-05 00:12:43,951 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6135 states to 6135 states and 20691 transitions. [2021-06-05 00:12:43,952 INFO L78 Accepts]: Start accepts. Automaton has 6135 states and 20691 transitions. Word has length 49 [2021-06-05 00:12:43,953 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:12:43,953 INFO L482 AbstractCegarLoop]: Abstraction has 6135 states and 20691 transitions. [2021-06-05 00:12:43,954 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 8.166666666666666) internal successors, (49), 6 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) [2021-06-05 00:12:43,954 INFO L276 IsEmpty]: Start isEmpty. Operand 6135 states and 20691 transitions. [2021-06-05 00:12:43,965 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2021-06-05 00:12:43,969 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:12:43,970 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] [2021-06-05 00:12:43,970 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-06-05 00:12:43,970 INFO L430 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:12:43,972 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:12:43,972 INFO L82 PathProgramCache]: Analyzing trace with hash -831184694, now seen corresponding path program 1 times [2021-06-05 00:12:43,972 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:12:43,972 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1512039954] [2021-06-05 00:12:43,972 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:12:44,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:12:44,205 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:12:44,206 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:12:44,206 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1512039954] [2021-06-05 00:12:44,206 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1512039954] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:12:44,206 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:12:44,206 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-06-05 00:12:44,206 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1603749839] [2021-06-05 00:12:44,207 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-06-05 00:12:44,208 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:12:44,208 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-06-05 00:12:44,208 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-06-05 00:12:44,208 INFO L87 Difference]: Start difference. First operand 6135 states and 20691 transitions. Second operand has 7 states, 7 states have (on average 7.285714285714286) internal successors, (51), 7 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) [2021-06-05 00:12:44,519 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:12:44,520 INFO L93 Difference]: Finished difference Result 9517 states and 31675 transitions. [2021-06-05 00:12:44,520 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 00:12:44,520 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.285714285714286) internal successors, (51), 7 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 [2021-06-05 00:12:44,521 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:12:44,567 INFO L225 Difference]: With dead ends: 9517 [2021-06-05 00:12:44,568 INFO L226 Difference]: Without dead ends: 7517 [2021-06-05 00:12:44,569 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 57 ImplicationChecksByTransitivity, 215.5ms TimeCoverageRelationStatistics Valid=106, Invalid=236, Unknown=0, NotChecked=0, Total=342 [2021-06-05 00:12:44,591 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7517 states. [2021-06-05 00:12:44,757 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7517 to 6104. [2021-06-05 00:12:44,766 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6104 states, 6103 states have (on average 3.362116991643454) internal successors, (20519), 6103 states have internal predecessors, (20519), 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) [2021-06-05 00:12:44,781 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6104 states to 6104 states and 20519 transitions. [2021-06-05 00:12:44,782 INFO L78 Accepts]: Start accepts. Automaton has 6104 states and 20519 transitions. Word has length 51 [2021-06-05 00:12:44,783 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:12:44,783 INFO L482 AbstractCegarLoop]: Abstraction has 6104 states and 20519 transitions. [2021-06-05 00:12:44,783 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 7.285714285714286) internal successors, (51), 7 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) [2021-06-05 00:12:44,783 INFO L276 IsEmpty]: Start isEmpty. Operand 6104 states and 20519 transitions. [2021-06-05 00:12:44,796 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2021-06-05 00:12:44,797 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:12:44,797 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] [2021-06-05 00:12:44,797 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-06-05 00:12:44,797 INFO L430 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:12:44,803 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:12:44,803 INFO L82 PathProgramCache]: Analyzing trace with hash 1915177392, now seen corresponding path program 1 times [2021-06-05 00:12:44,803 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:12:44,803 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [861923471] [2021-06-05 00:12:44,803 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:12:44,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:12:44,935 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:12:44,935 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:12:44,935 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [861923471] [2021-06-05 00:12:44,935 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [861923471] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:12:44,935 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:12:44,935 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-06-05 00:12:44,936 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [285985014] [2021-06-05 00:12:44,936 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-06-05 00:12:44,936 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:12:44,936 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-06-05 00:12:44,936 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-06-05 00:12:44,937 INFO L87 Difference]: Start difference. First operand 6104 states and 20519 transitions. Second operand has 7 states, 7 states have (on average 7.285714285714286) internal successors, (51), 7 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) [2021-06-05 00:12:45,122 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:12:45,123 INFO L93 Difference]: Finished difference Result 8464 states and 28055 transitions. [2021-06-05 00:12:45,123 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-06-05 00:12:45,123 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.285714285714286) internal successors, (51), 7 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 [2021-06-05 00:12:45,124 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:12:45,135 INFO L225 Difference]: With dead ends: 8464 [2021-06-05 00:12:45,135 INFO L226 Difference]: Without dead ends: 4308 [2021-06-05 00:12:45,136 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 107.7ms TimeCoverageRelationStatistics Valid=79, Invalid=161, Unknown=0, NotChecked=0, Total=240 [2021-06-05 00:12:45,146 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4308 states. [2021-06-05 00:12:45,200 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4308 to 3848. [2021-06-05 00:12:45,206 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3848 states, 3847 states have (on average 3.260722641018976) internal successors, (12544), 3847 states have internal predecessors, (12544), 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) [2021-06-05 00:12:45,215 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3848 states to 3848 states and 12544 transitions. [2021-06-05 00:12:45,215 INFO L78 Accepts]: Start accepts. Automaton has 3848 states and 12544 transitions. Word has length 51 [2021-06-05 00:12:45,215 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:12:45,215 INFO L482 AbstractCegarLoop]: Abstraction has 3848 states and 12544 transitions. [2021-06-05 00:12:45,215 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 7.285714285714286) internal successors, (51), 7 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) [2021-06-05 00:12:45,215 INFO L276 IsEmpty]: Start isEmpty. Operand 3848 states and 12544 transitions. [2021-06-05 00:12:45,220 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2021-06-05 00:12:45,220 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:12:45,220 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] [2021-06-05 00:12:45,221 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-06-05 00:12:45,221 INFO L430 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:12:45,221 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:12:45,221 INFO L82 PathProgramCache]: Analyzing trace with hash -1721389007, now seen corresponding path program 1 times [2021-06-05 00:12:45,221 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:12:45,221 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1022205989] [2021-06-05 00:12:45,222 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:12:45,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:12:45,280 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:12:45,280 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:12:45,280 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1022205989] [2021-06-05 00:12:45,280 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1022205989] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:12:45,280 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:12:45,280 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-06-05 00:12:45,281 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1788678979] [2021-06-05 00:12:45,281 INFO L462 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-06-05 00:12:45,281 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:12:45,281 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-06-05 00:12:45,281 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-06-05 00:12:45,282 INFO L87 Difference]: Start difference. First operand 3848 states and 12544 transitions. Second operand has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 6 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) [2021-06-05 00:12:45,361 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:12:45,361 INFO L93 Difference]: Finished difference Result 4248 states and 13759 transitions. [2021-06-05 00:12:45,362 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 00:12:45,362 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 6 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 [2021-06-05 00:12:45,362 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:12:45,371 INFO L225 Difference]: With dead ends: 4248 [2021-06-05 00:12:45,371 INFO L226 Difference]: Without dead ends: 3548 [2021-06-05 00:12:45,371 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 65.8ms TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2021-06-05 00:12:45,381 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3548 states. [2021-06-05 00:12:45,437 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3548 to 3548. [2021-06-05 00:12:45,442 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3548 states, 3547 states have (on average 3.2320270651254583) internal successors, (11464), 3547 states have internal predecessors, (11464), 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) [2021-06-05 00:12:45,451 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3548 states to 3548 states and 11464 transitions. [2021-06-05 00:12:45,451 INFO L78 Accepts]: Start accepts. Automaton has 3548 states and 11464 transitions. Word has length 53 [2021-06-05 00:12:45,451 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:12:45,451 INFO L482 AbstractCegarLoop]: Abstraction has 3548 states and 11464 transitions. [2021-06-05 00:12:45,452 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 6 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) [2021-06-05 00:12:45,452 INFO L276 IsEmpty]: Start isEmpty. Operand 3548 states and 11464 transitions. [2021-06-05 00:12:45,500 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2021-06-05 00:12:45,500 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:12:45,500 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:12:45,501 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-06-05 00:12:45,501 INFO L430 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:12:45,501 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:12:45,501 INFO L82 PathProgramCache]: Analyzing trace with hash 1678265394, now seen corresponding path program 1 times [2021-06-05 00:12:45,501 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:12:45,501 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1319309452] [2021-06-05 00:12:45,502 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:12:45,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:12:45,566 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:12:45,566 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:12:45,566 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1319309452] [2021-06-05 00:12:45,566 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1319309452] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:12:45,567 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:12:45,567 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-06-05 00:12:45,567 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1497655717] [2021-06-05 00:12:45,567 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-06-05 00:12:45,567 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:12:45,567 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-06-05 00:12:45,568 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-06-05 00:12:45,568 INFO L87 Difference]: Start difference. First operand 3548 states and 11464 transitions. Second operand has 7 states, 7 states have (on average 7.857142857142857) internal successors, (55), 7 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:12:45,724 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:12:45,725 INFO L93 Difference]: Finished difference Result 5066 states and 16148 transitions. [2021-06-05 00:12:45,725 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-06-05 00:12:45,725 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.857142857142857) internal successors, (55), 7 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 55 [2021-06-05 00:12:45,725 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:12:45,736 INFO L225 Difference]: With dead ends: 5066 [2021-06-05 00:12:45,736 INFO L226 Difference]: Without dead ends: 4246 [2021-06-05 00:12:45,736 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 118.9ms TimeCoverageRelationStatistics Valid=73, Invalid=137, Unknown=0, NotChecked=0, Total=210 [2021-06-05 00:12:45,747 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4246 states. [2021-06-05 00:12:45,802 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4246 to 3198. [2021-06-05 00:12:45,807 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3198 states, 3197 states have (on average 3.1995620894588677) internal successors, (10229), 3197 states have internal predecessors, (10229), 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) [2021-06-05 00:12:45,814 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3198 states to 3198 states and 10229 transitions. [2021-06-05 00:12:45,814 INFO L78 Accepts]: Start accepts. Automaton has 3198 states and 10229 transitions. Word has length 55 [2021-06-05 00:12:45,815 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:12:45,815 INFO L482 AbstractCegarLoop]: Abstraction has 3198 states and 10229 transitions. [2021-06-05 00:12:45,815 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 7.857142857142857) internal successors, (55), 7 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:12:45,815 INFO L276 IsEmpty]: Start isEmpty. Operand 3198 states and 10229 transitions. [2021-06-05 00:12:45,819 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2021-06-05 00:12:45,820 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:12:45,820 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] [2021-06-05 00:12:45,820 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-06-05 00:12:45,820 INFO L430 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:12:45,820 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:12:45,820 INFO L82 PathProgramCache]: Analyzing trace with hash 1442814938, now seen corresponding path program 1 times [2021-06-05 00:12:45,821 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:12:45,821 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [857175961] [2021-06-05 00:12:45,821 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:12:45,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:12:45,882 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:12:45,882 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:12:45,882 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [857175961] [2021-06-05 00:12:45,882 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [857175961] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:12:45,882 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:12:45,882 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-06-05 00:12:45,882 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2042483556] [2021-06-05 00:12:45,883 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-06-05 00:12:45,883 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:12:45,883 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-06-05 00:12:45,883 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-06-05 00:12:45,883 INFO L87 Difference]: Start difference. First operand 3198 states and 10229 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) [2021-06-05 00:12:46,045 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:12:46,046 INFO L93 Difference]: Finished difference Result 4278 states and 13595 transitions. [2021-06-05 00:12:46,046 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 00:12:46,046 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 [2021-06-05 00:12:46,046 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:12:46,051 INFO L225 Difference]: With dead ends: 4278 [2021-06-05 00:12:46,051 INFO L226 Difference]: Without dead ends: 2038 [2021-06-05 00:12:46,054 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 150.4ms TimeCoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182 [2021-06-05 00:12:46,059 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2038 states. [2021-06-05 00:12:46,083 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2038 to 2038. [2021-06-05 00:12:46,085 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2038 states, 2037 states have (on average 3.1183112420225823) internal successors, (6352), 2037 states have internal predecessors, (6352), 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) [2021-06-05 00:12:46,089 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2038 states to 2038 states and 6352 transitions. [2021-06-05 00:12:46,089 INFO L78 Accepts]: Start accepts. Automaton has 2038 states and 6352 transitions. Word has length 56 [2021-06-05 00:12:46,090 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:12:46,090 INFO L482 AbstractCegarLoop]: Abstraction has 2038 states and 6352 transitions. [2021-06-05 00:12:46,090 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) [2021-06-05 00:12:46,090 INFO L276 IsEmpty]: Start isEmpty. Operand 2038 states and 6352 transitions. [2021-06-05 00:12:46,093 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2021-06-05 00:12:46,093 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:12:46,093 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] [2021-06-05 00:12:46,093 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-06-05 00:12:46,093 INFO L430 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:12:46,094 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:12:46,094 INFO L82 PathProgramCache]: Analyzing trace with hash -1506580816, now seen corresponding path program 1 times [2021-06-05 00:12:46,094 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:12:46,094 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1135908355] [2021-06-05 00:12:46,094 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:12:46,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:12:46,184 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:12:46,185 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:12:46,185 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1135908355] [2021-06-05 00:12:46,185 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1135908355] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:12:46,185 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:12:46,185 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-06-05 00:12:46,185 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [266219002] [2021-06-05 00:12:46,185 INFO L462 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-06-05 00:12:46,185 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:12:46,186 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-06-05 00:12:46,186 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-06-05 00:12:46,186 INFO L87 Difference]: Start difference. First operand 2038 states and 6352 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) [2021-06-05 00:12:46,262 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:12:46,263 INFO L93 Difference]: Finished difference Result 2598 states and 8005 transitions. [2021-06-05 00:12:46,263 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 00:12:46,263 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 [2021-06-05 00:12:46,263 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:12:46,268 INFO L225 Difference]: With dead ends: 2598 [2021-06-05 00:12:46,268 INFO L226 Difference]: Without dead ends: 1886 [2021-06-05 00:12:46,268 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 60.0ms TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2021-06-05 00:12:46,273 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1886 states. [2021-06-05 00:12:46,295 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1886 to 1886. [2021-06-05 00:12:46,298 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1886 states, 1885 states have (on average 3.0870026525198937) internal successors, (5819), 1885 states have internal predecessors, (5819), 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) [2021-06-05 00:12:46,301 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1886 states to 1886 states and 5819 transitions. [2021-06-05 00:12:46,301 INFO L78 Accepts]: Start accepts. Automaton has 1886 states and 5819 transitions. Word has length 57 [2021-06-05 00:12:46,301 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:12:46,301 INFO L482 AbstractCegarLoop]: Abstraction has 1886 states and 5819 transitions. [2021-06-05 00:12:46,301 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) [2021-06-05 00:12:46,302 INFO L276 IsEmpty]: Start isEmpty. Operand 1886 states and 5819 transitions. [2021-06-05 00:12:46,304 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2021-06-05 00:12:46,304 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:12:46,304 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] [2021-06-05 00:12:46,304 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-06-05 00:12:46,305 INFO L430 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:12:46,305 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:12:46,305 INFO L82 PathProgramCache]: Analyzing trace with hash -208209097, now seen corresponding path program 1 times [2021-06-05 00:12:46,305 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:12:46,305 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [182330870] [2021-06-05 00:12:46,305 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:12:46,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:12:46,361 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:12:46,362 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:12:46,362 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [182330870] [2021-06-05 00:12:46,362 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [182330870] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:12:46,362 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:12:46,362 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-06-05 00:12:46,362 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1196156013] [2021-06-05 00:12:46,362 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-06-05 00:12:46,363 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:12:46,363 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-06-05 00:12:46,363 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-06-05 00:12:46,363 INFO L87 Difference]: Start difference. First operand 1886 states and 5819 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) [2021-06-05 00:12:46,459 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:12:46,460 INFO L93 Difference]: Finished difference Result 2096 states and 6322 transitions. [2021-06-05 00:12:46,460 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 00:12:46,460 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 [2021-06-05 00:12:46,460 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:12:46,463 INFO L225 Difference]: With dead ends: 2096 [2021-06-05 00:12:46,464 INFO L226 Difference]: Without dead ends: 1496 [2021-06-05 00:12:46,464 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 77.4ms TimeCoverageRelationStatistics Valid=49, Invalid=107, Unknown=0, NotChecked=0, Total=156 [2021-06-05 00:12:46,467 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1496 states. [2021-06-05 00:12:46,487 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1496 to 1496. [2021-06-05 00:12:46,488 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1496 states, 1495 states have (on average 2.985953177257525) internal successors, (4464), 1495 states have internal predecessors, (4464), 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) [2021-06-05 00:12:46,491 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1496 states to 1496 states and 4464 transitions. [2021-06-05 00:12:46,491 INFO L78 Accepts]: Start accepts. Automaton has 1496 states and 4464 transitions. Word has length 58 [2021-06-05 00:12:46,491 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:12:46,491 INFO L482 AbstractCegarLoop]: Abstraction has 1496 states and 4464 transitions. [2021-06-05 00:12:46,491 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) [2021-06-05 00:12:46,491 INFO L276 IsEmpty]: Start isEmpty. Operand 1496 states and 4464 transitions. [2021-06-05 00:12:46,493 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2021-06-05 00:12:46,493 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:12:46,493 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] [2021-06-05 00:12:46,494 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-06-05 00:12:46,494 INFO L430 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:12:46,494 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:12:46,494 INFO L82 PathProgramCache]: Analyzing trace with hash -1710207794, now seen corresponding path program 1 times [2021-06-05 00:12:46,494 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:12:46,495 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [872816076] [2021-06-05 00:12:46,495 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:12:46,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:12:46,583 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:12:46,584 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:12:46,584 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [872816076] [2021-06-05 00:12:46,584 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [872816076] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:12:46,584 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:12:46,584 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 00:12:46,584 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [721842414] [2021-06-05 00:12:46,584 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-06-05 00:12:46,585 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:12:46,585 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-06-05 00:12:46,585 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-06-05 00:12:46,585 INFO L87 Difference]: Start difference. First operand 1496 states and 4464 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) [2021-06-05 00:12:46,697 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:12:46,698 INFO L93 Difference]: Finished difference Result 1325 states and 3840 transitions. [2021-06-05 00:12:46,704 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-06-05 00:12:46,705 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 [2021-06-05 00:12:46,705 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:12:46,706 INFO L225 Difference]: With dead ends: 1325 [2021-06-05 00:12:46,706 INFO L226 Difference]: Without dead ends: 693 [2021-06-05 00:12:46,707 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 93.6ms TimeCoverageRelationStatistics Valid=61, Invalid=149, Unknown=0, NotChecked=0, Total=210 [2021-06-05 00:12:46,708 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 693 states. [2021-06-05 00:12:46,731 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 693 to 693. [2021-06-05 00:12:46,732 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 693 states, 692 states have (on average 2.7846820809248554) internal successors, (1927), 692 states have internal predecessors, (1927), 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) [2021-06-05 00:12:46,733 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 693 states to 693 states and 1927 transitions. [2021-06-05 00:12:46,733 INFO L78 Accepts]: Start accepts. Automaton has 693 states and 1927 transitions. Word has length 59 [2021-06-05 00:12:46,733 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:12:46,733 INFO L482 AbstractCegarLoop]: Abstraction has 693 states and 1927 transitions. [2021-06-05 00:12:46,733 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) [2021-06-05 00:12:46,733 INFO L276 IsEmpty]: Start isEmpty. Operand 693 states and 1927 transitions. [2021-06-05 00:12:46,734 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2021-06-05 00:12:46,734 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:12:46,734 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:12:46,734 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-06-05 00:12:46,734 INFO L430 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:12:46,735 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:12:46,735 INFO L82 PathProgramCache]: Analyzing trace with hash -1185234251, now seen corresponding path program 1 times [2021-06-05 00:12:46,735 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:12:46,735 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [915838371] [2021-06-05 00:12:46,735 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:12:46,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:12:46,787 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:12:46,787 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:12:46,787 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [915838371] [2021-06-05 00:12:46,788 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [915838371] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:12:46,788 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:12:46,788 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-06-05 00:12:46,788 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2087858807] [2021-06-05 00:12:46,788 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-06-05 00:12:46,790 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:12:46,790 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-06-05 00:12:46,790 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-06-05 00:12:46,790 INFO L87 Difference]: Start difference. First operand 693 states and 1927 transitions. Second operand has 7 states, 7 states have (on average 8.714285714285714) internal successors, (61), 7 states have internal predecessors, (61), 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) [2021-06-05 00:12:46,835 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:12:46,835 INFO L93 Difference]: Finished difference Result 639 states and 1765 transitions. [2021-06-05 00:12:46,835 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-06-05 00:12:46,835 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.714285714285714) internal successors, (61), 7 states have internal predecessors, (61), 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 61 [2021-06-05 00:12:46,835 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:12:46,836 INFO L225 Difference]: With dead ends: 639 [2021-06-05 00:12:46,836 INFO L226 Difference]: Without dead ends: 0 [2021-06-05 00:12:46,836 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 59.0ms TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2021-06-05 00:12:46,836 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-06-05 00:12:46,836 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-06-05 00:12:46,836 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) [2021-06-05 00:12:46,836 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-06-05 00:12:46,837 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 61 [2021-06-05 00:12:46,837 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:12:46,837 INFO L482 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-06-05 00:12:46,837 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 8.714285714285714) internal successors, (61), 7 states have internal predecessors, (61), 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) [2021-06-05 00:12:46,837 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-06-05 00:12:46,837 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-06-05 00:12:46,837 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-06-05 00:12:46,838 INFO L246 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-06-05 00:12:46,840 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 05.06 12:12:46 BasicIcfg [2021-06-05 00:12:46,840 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-06-05 00:12:46,841 INFO L168 Benchmark]: Toolchain (without parser) took 5505.95 ms. Allocated memory was 375.4 MB in the beginning and 1.6 GB in the end (delta: 1.2 GB). Free memory was 338.7 MB in the beginning and 1.4 GB in the end (delta: -1.0 GB). Peak memory consumption was 153.2 MB. Max. memory is 16.0 GB. [2021-06-05 00:12:46,841 INFO L168 Benchmark]: CDTParser took 0.11 ms. Allocated memory is still 375.4 MB. Free memory is still 356.2 MB. There was no memory consumed. Max. memory is 16.0 GB. [2021-06-05 00:12:46,842 INFO L168 Benchmark]: CACSL2BoogieTranslator took 410.82 ms. Allocated memory is still 375.4 MB. Free memory was 338.5 MB in the beginning and 338.8 MB in the end (delta: -318.2 kB). Peak memory consumption was 6.9 MB. Max. memory is 16.0 GB. [2021-06-05 00:12:46,842 INFO L168 Benchmark]: Boogie Procedure Inliner took 44.61 ms. Allocated memory is still 375.4 MB. Free memory was 338.8 MB in the beginning and 336.7 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-06-05 00:12:46,843 INFO L168 Benchmark]: Boogie Preprocessor took 28.64 ms. Allocated memory is still 375.4 MB. Free memory was 336.7 MB in the beginning and 334.6 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-06-05 00:12:46,844 INFO L168 Benchmark]: RCFGBuilder took 484.86 ms. Allocated memory is still 375.4 MB. Free memory was 334.6 MB in the beginning and 310.5 MB in the end (delta: 24.1 MB). Peak memory consumption was 25.2 MB. Max. memory is 16.0 GB. [2021-06-05 00:12:46,844 INFO L168 Benchmark]: TraceAbstraction took 4531.43 ms. Allocated memory was 375.4 MB in the beginning and 1.6 GB in the end (delta: 1.2 GB). Free memory was 310.5 MB in the beginning and 1.4 GB in the end (delta: -1.1 GB). Peak memory consumption was 126.5 MB. Max. memory is 16.0 GB. [2021-06-05 00:12:46,848 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11 ms. Allocated memory is still 375.4 MB. Free memory is still 356.2 MB. There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 410.82 ms. Allocated memory is still 375.4 MB. Free memory was 338.5 MB in the beginning and 338.8 MB in the end (delta: -318.2 kB). Peak memory consumption was 6.9 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 44.61 ms. Allocated memory is still 375.4 MB. Free memory was 338.8 MB in the beginning and 336.7 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 28.64 ms. Allocated memory is still 375.4 MB. Free memory was 336.7 MB in the beginning and 334.6 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * RCFGBuilder took 484.86 ms. Allocated memory is still 375.4 MB. Free memory was 334.6 MB in the beginning and 310.5 MB in the end (delta: 24.1 MB). Peak memory consumption was 25.2 MB. Max. memory is 16.0 GB. * TraceAbstraction took 4531.43 ms. Allocated memory was 375.4 MB in the beginning and 1.6 GB in the end (delta: 1.2 GB). Free memory was 310.5 MB in the beginning and 1.4 GB in the end (delta: -1.1 GB). Peak memory consumption was 126.5 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: 4439.4ms, OverallIterations: 10, TraceHistogramMax: 1, EmptinessCheckTime: 157.6ms, AutomataDifference: 1808.3ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 356.1ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 1060 SDtfs, 1607 SDslu, 3528 SDs, 0 SdLazy, 465 SolverSat, 90 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 277.0ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 136 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 116 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 180 ImplicationChecksByTransitivity, 1062.2ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=9332occurred in iteration=0, InterpolantAutomatonStates: 109, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 819.9ms AutomataMinimizationTime, 10 MinimizatonAttempts, 4055 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 53.9ms SsaConstructionTime, 173.8ms SatisfiabilityAnalysisTime, 883.6ms InterpolantComputationTime, 550 NumberOfCodeBlocks, 550 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 540 ConstructedInterpolants, 0 QuantifiedInterpolants, 1952 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 10 InterpolantComputations, 10 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 - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! Received shutdown request...