/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/safe003_tso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-770125f [2021-05-21 17:22:28,089 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-05-21 17:22:28,091 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-05-21 17:22:28,111 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-05-21 17:22:28,132 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-05-21 17:22:28,132 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-05-21 17:22:28,133 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-05-21 17:22:28,137 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 [2021-05-21 17:22:28,152 INFO L113 SettingsManager]: Loading preferences was successful [2021-05-21 17:22:28,152 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-05-21 17:22:28,152 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-05-21 17:22:28,152 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-05-21 17:22:28,153 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-05-21 17:22:28,153 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-05-21 17:22:28,153 INFO L138 SettingsManager]: * Use SBE=true [2021-05-21 17:22:28,153 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-05-21 17:22:28,153 INFO L138 SettingsManager]: * sizeof long=4 [2021-05-21 17:22:28,154 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-05-21 17:22:28,154 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-05-21 17:22:28,154 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-05-21 17:22:28,154 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-05-21 17:22:28,154 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-05-21 17:22:28,154 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-05-21 17:22:28,154 INFO L138 SettingsManager]: * sizeof long double=12 [2021-05-21 17:22:28,154 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-05-21 17:22:28,154 INFO L138 SettingsManager]: * Use constant arrays=true [2021-05-21 17:22:28,154 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-05-21 17:22:28,154 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-05-21 17:22:28,154 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-05-21 17:22:28,155 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-05-21 17:22:28,155 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-05-21 17:22:28,155 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-05-21 17:22:28,155 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-05-21 17:22:28,155 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-05-21 17:22:28,155 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-05-21 17:22:28,155 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-05-21 17:22:28,155 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-05-21 17:22:28,155 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-05-21 17:22:28,155 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-05-21 17:22:28,155 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-05-21 17:22:28,386 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-05-21 17:22:28,406 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-05-21 17:22:28,408 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-05-21 17:22:28,409 INFO L271 PluginConnector]: Initializing CDTParser... [2021-05-21 17:22:28,410 INFO L275 PluginConnector]: CDTParser initialized [2021-05-21 17:22:28,410 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe003_tso.oepc.i [2021-05-21 17:22:28,460 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/73bd56613/a32f52ede5e941b189ab987f5c1bb177/FLAG091f634b9 [2021-05-21 17:22:28,889 INFO L306 CDTParser]: Found 1 translation units. [2021-05-21 17:22:28,890 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe003_tso.oepc.i [2021-05-21 17:22:28,902 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/73bd56613/a32f52ede5e941b189ab987f5c1bb177/FLAG091f634b9 [2021-05-21 17:22:28,916 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/73bd56613/a32f52ede5e941b189ab987f5c1bb177 [2021-05-21 17:22:28,919 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-05-21 17:22:28,920 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-05-21 17:22:28,923 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-05-21 17:22:28,923 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-05-21 17:22:28,926 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-05-21 17:22:28,926 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.05 05:22:28" (1/1) ... [2021-05-21 17:22:28,928 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@b461fdf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.05 05:22:28, skipping insertion in model container [2021-05-21 17:22:28,928 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.05 05:22:28" (1/1) ... [2021-05-21 17:22:28,932 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-05-21 17:22:28,966 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-05-21 17:22:29,119 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/safe003_tso.oepc.i[950,963] [2021-05-21 17:22:29,247 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-05-21 17:22:29,254 INFO L203 MainTranslator]: Completed pre-run [2021-05-21 17:22:29,264 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/safe003_tso.oepc.i[950,963] [2021-05-21 17:22:29,299 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-05-21 17:22:29,335 INFO L208 MainTranslator]: Completed translation [2021-05-21 17:22:29,335 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.05 05:22:29 WrapperNode [2021-05-21 17:22:29,335 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-05-21 17:22:29,336 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-05-21 17:22:29,336 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-05-21 17:22:29,336 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-05-21 17:22:29,340 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.05 05:22:29" (1/1) ... [2021-05-21 17:22:29,348 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.05 05:22:29" (1/1) ... [2021-05-21 17:22:29,360 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-05-21 17:22:29,360 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-05-21 17:22:29,360 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-05-21 17:22:29,360 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-05-21 17:22:29,365 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.05 05:22:29" (1/1) ... [2021-05-21 17:22:29,365 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.05 05:22:29" (1/1) ... [2021-05-21 17:22:29,367 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.05 05:22:29" (1/1) ... [2021-05-21 17:22:29,367 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.05 05:22:29" (1/1) ... [2021-05-21 17:22:29,370 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.05 05:22:29" (1/1) ... [2021-05-21 17:22:29,371 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.05 05:22:29" (1/1) ... [2021-05-21 17:22:29,373 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.05 05:22:29" (1/1) ... [2021-05-21 17:22:29,374 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-05-21 17:22:29,375 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-05-21 17:22:29,375 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-05-21 17:22:29,375 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-05-21 17:22:29,375 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.05 05:22:29" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-05-21 17:22:29,440 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-05-21 17:22:29,441 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-05-21 17:22:29,441 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-05-21 17:22:29,441 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-05-21 17:22:29,441 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2021-05-21 17:22:29,442 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2021-05-21 17:22:29,443 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2021-05-21 17:22:29,443 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2021-05-21 17:22:29,443 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2021-05-21 17:22:29,443 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2021-05-21 17:22:29,443 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-05-21 17:22:29,443 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-05-21 17:22:29,443 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-05-21 17:22:29,443 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-05-21 17:22:29,444 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-05-21 17:22:29,663 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-05-21 17:22:29,664 INFO L299 CfgBuilder]: Removed 8 assume(true) statements. [2021-05-21 17:22:29,665 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.05 05:22:29 BoogieIcfgContainer [2021-05-21 17:22:29,665 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-05-21 17:22:29,666 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-05-21 17:22:29,666 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-05-21 17:22:29,668 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-05-21 17:22:29,668 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.05 05:22:28" (1/3) ... [2021-05-21 17:22:29,668 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@bad3467 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.05 05:22:29, skipping insertion in model container [2021-05-21 17:22:29,668 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.05 05:22:29" (2/3) ... [2021-05-21 17:22:29,668 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@bad3467 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.05 05:22:29, skipping insertion in model container [2021-05-21 17:22:29,669 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.05 05:22:29" (3/3) ... [2021-05-21 17:22:29,669 INFO L111 eAbstractionObserver]: Analyzing ICFG safe003_tso.oepc.i [2021-05-21 17:22:29,673 WARN L148 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-05-21 17:22:29,673 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-05-21 17:22:29,673 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-05-21 17:22:29,673 INFO L478 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-05-21 17:22:29,694 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 17:22:29,694 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 17:22:29,694 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 17:22:29,694 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 17:22:29,694 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 17:22:29,694 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 17:22:29,694 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 17:22:29,695 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 17:22:29,695 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 17:22:29,695 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 17:22:29,695 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 17:22:29,695 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 17:22:29,695 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 17:22:29,696 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 17:22:29,696 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 17:22:29,696 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 17:22:29,696 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 17:22:29,696 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 17:22:29,696 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 17:22:29,696 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 17:22:29,696 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 17:22:29,696 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 17:22:29,697 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 17:22:29,697 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 17:22:29,697 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 17:22:29,697 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 17:22:29,697 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 17:22:29,697 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 17:22:29,697 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 17:22:29,697 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 17:22:29,698 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 17:22:29,698 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 17:22:29,698 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 17:22:29,698 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 17:22:29,698 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 17:22:29,698 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 17:22:29,699 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 17:22:29,700 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 17:22:29,700 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 17:22:29,700 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 17:22:29,703 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 17:22:29,703 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 17:22:29,704 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 17:22:29,704 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 17:22:29,705 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 17:22:29,705 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 17:22:29,705 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 17:22:29,705 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 17:22:29,707 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-05-21 17:22:29,721 INFO L255 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2021-05-21 17:22:29,732 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-05-21 17:22:29,733 INFO L379 AbstractCegarLoop]: Hoare is false [2021-05-21 17:22:29,733 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-05-21 17:22:29,733 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-05-21 17:22:29,733 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-05-21 17:22:29,733 INFO L383 AbstractCegarLoop]: Difference is false [2021-05-21 17:22:29,733 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-05-21 17:22:29,733 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-05-21 17:22:29,740 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 92 places, 84 transitions, 183 flow [2021-05-21 17:22:30,188 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 9332 states, 9330 states have (on average 3.562379421221865) internal successors, (33237), 9331 states have internal predecessors, (33237), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:22:30,220 INFO L276 IsEmpty]: Start isEmpty. Operand has 9332 states, 9330 states have (on average 3.562379421221865) internal successors, (33237), 9331 states have internal predecessors, (33237), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:22:30,248 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2021-05-21 17:22:30,248 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 17:22:30,249 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-21 17:22:30,249 INFO L430 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 17:22:30,253 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 17:22:30,253 INFO L82 PathProgramCache]: Analyzing trace with hash 663437649, now seen corresponding path program 1 times [2021-05-21 17:22:30,258 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 17:22:30,258 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1244056143] [2021-05-21 17:22:30,259 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 17:22:30,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 17:22:30,503 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 17:22:30,504 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 17:22:30,504 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1244056143] [2021-05-21 17:22:30,505 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1244056143] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 17:22:30,505 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 17:22:30,505 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-05-21 17:22:30,505 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [172608900] [2021-05-21 17:22:30,508 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-05-21 17:22:30,508 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 17:22:30,516 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-05-21 17:22:30,516 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-05-21 17:22:30,539 INFO L87 Difference]: Start difference. First operand has 9332 states, 9330 states have (on average 3.562379421221865) internal successors, (33237), 9331 states have internal predecessors, (33237), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 7 states, 7 states have (on average 7.0) internal successors, (49), 7 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:22:30,873 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 17:22:30,873 INFO L93 Difference]: Finished difference Result 18846 states and 64895 transitions. [2021-05-21 17:22:30,874 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-05-21 17:22:30,875 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.0) internal successors, (49), 7 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 49 [2021-05-21 17:22:30,875 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 17:22:30,910 INFO L225 Difference]: With dead ends: 18846 [2021-05-21 17:22:30,910 INFO L226 Difference]: Without dead ends: 5421 [2021-05-21 17:22:30,911 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 145.9ms TimeCoverageRelationStatistics Valid=73, Invalid=137, Unknown=0, NotChecked=0, Total=210 [2021-05-21 17:22:30,940 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5421 states. [2021-05-21 17:22:31,181 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5421 to 4413. [2021-05-21 17:22:31,191 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4413 states, 4412 states have (on average 3.259292837715322) internal successors, (14380), 4412 states have internal predecessors, (14380), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:22:31,205 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4413 states to 4413 states and 14380 transitions. [2021-05-21 17:22:31,206 INFO L78 Accepts]: Start accepts. Automaton has 4413 states and 14380 transitions. Word has length 49 [2021-05-21 17:22:31,207 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 17:22:31,207 INFO L482 AbstractCegarLoop]: Abstraction has 4413 states and 14380 transitions. [2021-05-21 17:22:31,207 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 7.0) internal successors, (49), 7 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:22:31,207 INFO L276 IsEmpty]: Start isEmpty. Operand 4413 states and 14380 transitions. [2021-05-21 17:22:31,214 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2021-05-21 17:22:31,215 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 17:22:31,215 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-21 17:22:31,215 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-05-21 17:22:31,215 INFO L430 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 17:22:31,216 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 17:22:31,216 INFO L82 PathProgramCache]: Analyzing trace with hash -1271821275, now seen corresponding path program 1 times [2021-05-21 17:22:31,216 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 17:22:31,216 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [423653095] [2021-05-21 17:22:31,216 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 17:22:31,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 17:22:31,357 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 17:22:31,357 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 17:22:31,357 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [423653095] [2021-05-21 17:22:31,357 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [423653095] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 17:22:31,357 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 17:22:31,357 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-05-21 17:22:31,358 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2053053404] [2021-05-21 17:22:31,359 INFO L462 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-05-21 17:22:31,359 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 17:22:31,360 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-05-21 17:22:31,360 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-05-21 17:22:31,360 INFO L87 Difference]: Start difference. First operand 4413 states and 14380 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) [2021-05-21 17:22:31,474 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 17:22:31,474 INFO L93 Difference]: Finished difference Result 5043 states and 16344 transitions. [2021-05-21 17:22:31,475 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-05-21 17:22:31,475 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 [2021-05-21 17:22:31,475 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 17:22:31,492 INFO L225 Difference]: With dead ends: 5043 [2021-05-21 17:22:31,492 INFO L226 Difference]: Without dead ends: 3943 [2021-05-21 17:22:31,492 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 85.2ms TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2021-05-21 17:22:31,532 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3943 states. [2021-05-21 17:22:31,588 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3943 to 3847. [2021-05-21 17:22:31,594 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3847 states, 3846 states have (on average 3.2503900156006242) internal successors, (12501), 3846 states have internal predecessors, (12501), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:22:31,604 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3847 states to 3847 states and 12501 transitions. [2021-05-21 17:22:31,604 INFO L78 Accepts]: Start accepts. Automaton has 3847 states and 12501 transitions. Word has length 53 [2021-05-21 17:22:31,604 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 17:22:31,604 INFO L482 AbstractCegarLoop]: Abstraction has 3847 states and 12501 transitions. [2021-05-21 17:22:31,605 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) [2021-05-21 17:22:31,605 INFO L276 IsEmpty]: Start isEmpty. Operand 3847 states and 12501 transitions. [2021-05-21 17:22:31,611 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2021-05-21 17:22:31,611 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 17:22:31,612 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-21 17:22:31,612 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-05-21 17:22:31,612 INFO L430 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 17:22:31,612 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 17:22:31,612 INFO L82 PathProgramCache]: Analyzing trace with hash -962643297, now seen corresponding path program 1 times [2021-05-21 17:22:31,612 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 17:22:31,612 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2028475452] [2021-05-21 17:22:31,613 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 17:22:31,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 17:22:31,683 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 17:22:31,683 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 17:22:31,684 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2028475452] [2021-05-21 17:22:31,684 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2028475452] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 17:22:31,684 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 17:22:31,684 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-05-21 17:22:31,684 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1281281272] [2021-05-21 17:22:31,684 INFO L462 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-05-21 17:22:31,684 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 17:22:31,685 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-05-21 17:22:31,685 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-05-21 17:22:31,686 INFO L87 Difference]: Start difference. First operand 3847 states and 12501 transitions. Second operand has 6 states, 6 states have (on average 9.0) internal successors, (54), 6 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:22:31,809 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 17:22:31,809 INFO L93 Difference]: Finished difference Result 4167 states and 13457 transitions. [2021-05-21 17:22:31,809 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-05-21 17:22:31,809 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.0) internal successors, (54), 6 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 54 [2021-05-21 17:22:31,810 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 17:22:31,823 INFO L225 Difference]: With dead ends: 4167 [2021-05-21 17:22:31,824 INFO L226 Difference]: Without dead ends: 3607 [2021-05-21 17:22:31,824 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 79.4ms TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2021-05-21 17:22:31,833 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3607 states. [2021-05-21 17:22:31,879 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3607 to 3543. [2021-05-21 17:22:31,883 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3543 states, 3542 states have (on average 3.2323546019198193) internal successors, (11449), 3542 states have internal predecessors, (11449), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:22:31,891 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3543 states to 3543 states and 11449 transitions. [2021-05-21 17:22:31,892 INFO L78 Accepts]: Start accepts. Automaton has 3543 states and 11449 transitions. Word has length 54 [2021-05-21 17:22:31,893 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 17:22:31,893 INFO L482 AbstractCegarLoop]: Abstraction has 3543 states and 11449 transitions. [2021-05-21 17:22:31,893 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 9.0) internal successors, (54), 6 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:22:31,893 INFO L276 IsEmpty]: Start isEmpty. Operand 3543 states and 11449 transitions. [2021-05-21 17:22:31,899 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2021-05-21 17:22:31,899 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 17:22:31,899 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-21 17:22:31,899 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-05-21 17:22:31,899 INFO L430 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 17:22:31,900 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 17:22:31,900 INFO L82 PathProgramCache]: Analyzing trace with hash -2103032967, now seen corresponding path program 1 times [2021-05-21 17:22:31,900 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 17:22:31,901 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1289195483] [2021-05-21 17:22:31,901 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 17:22:31,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 17:22:32,004 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 17:22:32,004 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 17:22:32,004 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1289195483] [2021-05-21 17:22:32,005 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1289195483] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 17:22:32,005 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 17:22:32,005 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-05-21 17:22:32,005 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1903776561] [2021-05-21 17:22:32,005 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-05-21 17:22:32,005 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 17:22:32,006 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-05-21 17:22:32,006 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-05-21 17:22:32,006 INFO L87 Difference]: Start difference. First operand 3543 states and 11449 transitions. Second operand has 7 states, 7 states have (on average 7.714285714285714) internal successors, (54), 7 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:22:32,115 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 17:22:32,116 INFO L93 Difference]: Finished difference Result 5383 states and 17339 transitions. [2021-05-21 17:22:32,116 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-05-21 17:22:32,117 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.714285714285714) internal successors, (54), 7 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 54 [2021-05-21 17:22:32,117 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 17:22:32,130 INFO L225 Difference]: With dead ends: 5383 [2021-05-21 17:22:32,130 INFO L226 Difference]: Without dead ends: 2743 [2021-05-21 17:22:32,131 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 60.0ms TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2021-05-21 17:22:32,138 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2743 states. [2021-05-21 17:22:32,179 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2743 to 2743. [2021-05-21 17:22:32,183 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2743 states, 2742 states have (on average 3.12873814733771) internal successors, (8579), 2742 states have internal predecessors, (8579), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:22:32,190 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2743 states to 2743 states and 8579 transitions. [2021-05-21 17:22:32,190 INFO L78 Accepts]: Start accepts. Automaton has 2743 states and 8579 transitions. Word has length 54 [2021-05-21 17:22:32,190 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 17:22:32,190 INFO L482 AbstractCegarLoop]: Abstraction has 2743 states and 8579 transitions. [2021-05-21 17:22:32,191 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 7.714285714285714) internal successors, (54), 7 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:22:32,191 INFO L276 IsEmpty]: Start isEmpty. Operand 2743 states and 8579 transitions. [2021-05-21 17:22:32,195 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2021-05-21 17:22:32,195 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 17:22:32,195 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-21 17:22:32,196 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-05-21 17:22:32,196 INFO L430 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 17:22:32,196 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 17:22:32,196 INFO L82 PathProgramCache]: Analyzing trace with hash -804719694, now seen corresponding path program 1 times [2021-05-21 17:22:32,196 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 17:22:32,197 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [826996249] [2021-05-21 17:22:32,197 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 17:22:32,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 17:22:32,254 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 17:22:32,254 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 17:22:32,254 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [826996249] [2021-05-21 17:22:32,254 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [826996249] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 17:22:32,254 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 17:22:32,254 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-05-21 17:22:32,254 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [656529316] [2021-05-21 17:22:32,255 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-05-21 17:22:32,255 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 17:22:32,255 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-05-21 17:22:32,255 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-05-21 17:22:32,255 INFO L87 Difference]: Start difference. First operand 2743 states and 8579 transitions. Second operand has 7 states, 7 states have (on average 8.0) internal successors, (56), 7 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:22:32,364 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 17:22:32,364 INFO L93 Difference]: Finished difference Result 3023 states and 9413 transitions. [2021-05-21 17:22:32,364 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-05-21 17:22:32,364 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.0) internal successors, (56), 7 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 56 [2021-05-21 17:22:32,365 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 17:22:32,382 INFO L225 Difference]: With dead ends: 3023 [2021-05-21 17:22:32,382 INFO L226 Difference]: Without dead ends: 1798 [2021-05-21 17:22:32,383 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 94.7ms TimeCoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182 [2021-05-21 17:22:32,389 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1798 states. [2021-05-21 17:22:32,418 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1798 to 1798. [2021-05-21 17:22:32,421 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1798 states, 1797 states have (on average 3.132999443516973) internal successors, (5630), 1797 states have internal predecessors, (5630), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:22:32,426 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1798 states to 1798 states and 5630 transitions. [2021-05-21 17:22:32,426 INFO L78 Accepts]: Start accepts. Automaton has 1798 states and 5630 transitions. Word has length 56 [2021-05-21 17:22:32,427 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 17:22:32,427 INFO L482 AbstractCegarLoop]: Abstraction has 1798 states and 5630 transitions. [2021-05-21 17:22:32,427 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 8.0) internal successors, (56), 7 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:22:32,427 INFO L276 IsEmpty]: Start isEmpty. Operand 1798 states and 5630 transitions. [2021-05-21 17:22:32,430 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2021-05-21 17:22:32,430 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 17:22:32,430 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-21 17:22:32,431 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-05-21 17:22:32,431 INFO L430 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 17:22:32,431 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 17:22:32,431 INFO L82 PathProgramCache]: Analyzing trace with hash -1506580816, now seen corresponding path program 1 times [2021-05-21 17:22:32,431 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 17:22:32,431 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [699748178] [2021-05-21 17:22:32,432 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 17:22:32,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 17:22:32,567 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 17:22:32,568 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 17:22:32,568 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [699748178] [2021-05-21 17:22:32,568 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [699748178] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 17:22:32,568 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 17:22:32,569 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-05-21 17:22:32,569 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [886022079] [2021-05-21 17:22:32,569 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-05-21 17:22:32,569 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 17:22:32,570 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-05-21 17:22:32,570 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-05-21 17:22:32,570 INFO L87 Difference]: Start difference. First operand 1798 states and 5630 transitions. Second operand has 7 states, 7 states have (on average 8.142857142857142) internal successors, (57), 7 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:22:32,659 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 17:22:32,659 INFO L93 Difference]: Finished difference Result 1638 states and 5102 transitions. [2021-05-21 17:22:32,659 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-05-21 17:22:32,660 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.142857142857142) internal successors, (57), 7 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 57 [2021-05-21 17:22:32,660 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 17:22:32,660 INFO L225 Difference]: With dead ends: 1638 [2021-05-21 17:22:32,660 INFO L226 Difference]: Without dead ends: 0 [2021-05-21 17:22:32,663 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 96.9ms TimeCoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182 [2021-05-21 17:22:32,663 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-05-21 17:22:32,663 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-05-21 17:22:32,663 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:22:32,663 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-05-21 17:22:32,663 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 57 [2021-05-21 17:22:32,663 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 17:22:32,663 INFO L482 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-05-21 17:22:32,664 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 8.142857142857142) internal successors, (57), 7 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:22:32,664 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-05-21 17:22:32,664 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-05-21 17:22:32,664 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-05-21 17:22:32,666 INFO L246 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-05-21 17:22:32,667 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.05 05:22:32 BasicIcfg [2021-05-21 17:22:32,667 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-05-21 17:22:32,668 INFO L168 Benchmark]: Toolchain (without parser) took 3748.04 ms. Allocated memory was 350.2 MB in the beginning and 994.1 MB in the end (delta: 643.8 MB). Free memory was 312.4 MB in the beginning and 809.8 MB in the end (delta: -497.4 MB). Peak memory consumption was 146.6 MB. Max. memory is 16.0 GB. [2021-05-21 17:22:32,668 INFO L168 Benchmark]: CDTParser took 0.11 ms. Allocated memory is still 350.2 MB. Free memory is still 330.4 MB. There was no memory consumed. Max. memory is 16.0 GB. [2021-05-21 17:22:32,669 INFO L168 Benchmark]: CACSL2BoogieTranslator took 412.02 ms. Allocated memory is still 350.2 MB. Free memory was 312.2 MB in the beginning and 311.9 MB in the end (delta: 350.9 kB). Peak memory consumption was 6.6 MB. Max. memory is 16.0 GB. [2021-05-21 17:22:32,670 INFO L168 Benchmark]: Boogie Procedure Inliner took 24.12 ms. Allocated memory is still 350.2 MB. Free memory was 311.9 MB in the beginning and 309.8 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-05-21 17:22:32,670 INFO L168 Benchmark]: Boogie Preprocessor took 13.90 ms. Allocated memory is still 350.2 MB. Free memory was 309.8 MB in the beginning and 308.7 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-05-21 17:22:32,672 INFO L168 Benchmark]: RCFGBuilder took 290.25 ms. Allocated memory is still 350.2 MB. Free memory was 308.7 MB in the beginning and 282.5 MB in the end (delta: 26.2 MB). Peak memory consumption was 25.2 MB. Max. memory is 16.0 GB. [2021-05-21 17:22:32,672 INFO L168 Benchmark]: TraceAbstraction took 3001.62 ms. Allocated memory was 350.2 MB in the beginning and 994.1 MB in the end (delta: 643.8 MB). Free memory was 282.5 MB in the beginning and 809.8 MB in the end (delta: -527.3 MB). Peak memory consumption was 118.6 MB. Max. memory is 16.0 GB. [2021-05-21 17:22:32,677 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 350.2 MB. Free memory is still 330.4 MB. There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 412.02 ms. Allocated memory is still 350.2 MB. Free memory was 312.2 MB in the beginning and 311.9 MB in the end (delta: 350.9 kB). Peak memory consumption was 6.6 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 24.12 ms. Allocated memory is still 350.2 MB. Free memory was 311.9 MB in the beginning and 309.8 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 13.90 ms. Allocated memory is still 350.2 MB. Free memory was 309.8 MB in the beginning and 308.7 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * RCFGBuilder took 290.25 ms. Allocated memory is still 350.2 MB. Free memory was 308.7 MB in the beginning and 282.5 MB in the end (delta: 26.2 MB). Peak memory consumption was 25.2 MB. Max. memory is 16.0 GB. * TraceAbstraction took 3001.62 ms. Allocated memory was 350.2 MB in the beginning and 994.1 MB in the end (delta: 643.8 MB). Free memory was 282.5 MB in the beginning and 809.8 MB in the end (delta: -527.3 MB). Peak memory consumption was 118.6 MB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 18]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - 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: 2933.7ms, OverallIterations: 6, TraceHistogramMax: 1, EmptinessCheckTime: 87.8ms, AutomataDifference: 1019.6ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 454.7ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 665 SDtfs, 905 SDslu, 2264 SDs, 0 SdLazy, 199 SolverSat, 14 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 190.1ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 77 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 65 ImplicationChecksByTransitivity, 562.4ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=9332occurred in iteration=0, InterpolantAutomatonStates: 58, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 567.6ms AutomataMinimizationTime, 6 MinimizatonAttempts, 1168 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 16.2ms SsaConstructionTime, 155.5ms SatisfiabilityAnalysisTime, 511.7ms InterpolantComputationTime, 323 NumberOfCodeBlocks, 323 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 317 ConstructedInterpolants, 0 QuantifiedInterpolants, 1277 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! Received shutdown request...