/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-SemanticLbe.epf -i ../../../trunk/examples/svcomp/pthread-wmm/safe032_tso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-7bb8cbd [2020-10-15 22:17:04,955 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-15 22:17:04,958 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-15 22:17:04,981 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-15 22:17:04,982 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-15 22:17:04,983 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-15 22:17:04,984 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-15 22:17:04,986 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-15 22:17:04,988 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-15 22:17:04,989 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-15 22:17:04,990 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-15 22:17:04,991 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-15 22:17:04,991 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-15 22:17:04,992 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-15 22:17:04,994 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-15 22:17:04,995 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-15 22:17:04,996 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-15 22:17:04,997 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-15 22:17:04,999 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-15 22:17:05,001 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-15 22:17:05,002 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-15 22:17:05,003 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-15 22:17:05,005 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-15 22:17:05,006 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-15 22:17:05,008 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-15 22:17:05,008 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-15 22:17:05,009 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-15 22:17:05,010 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-15 22:17:05,010 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-15 22:17:05,011 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-15 22:17:05,011 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-15 22:17:05,012 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-15 22:17:05,013 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-15 22:17:05,014 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-15 22:17:05,015 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-15 22:17:05,015 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-15 22:17:05,016 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-15 22:17:05,016 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-15 22:17:05,016 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-15 22:17:05,017 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-15 22:17:05,018 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-15 22:17:05,019 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-SemanticLbe.epf [2020-10-15 22:17:05,042 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-15 22:17:05,042 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-15 22:17:05,044 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-15 22:17:05,044 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-15 22:17:05,044 INFO L138 SettingsManager]: * Use SBE=true [2020-10-15 22:17:05,044 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-15 22:17:05,045 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-15 22:17:05,045 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-15 22:17:05,045 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-15 22:17:05,045 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-15 22:17:05,045 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-15 22:17:05,045 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-15 22:17:05,046 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-15 22:17:05,046 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-15 22:17:05,046 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-15 22:17:05,046 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-15 22:17:05,046 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-15 22:17:05,047 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-15 22:17:05,047 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-15 22:17:05,047 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-15 22:17:05,047 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-15 22:17:05,047 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-15 22:17:05,048 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-15 22:17:05,048 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-15 22:17:05,048 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-15 22:17:05,048 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-15 22:17:05,048 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-15 22:17:05,049 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-15 22:17:05,049 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-10-15 22:17:05,376 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-15 22:17:05,388 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-15 22:17:05,392 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-15 22:17:05,393 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-15 22:17:05,393 INFO L275 PluginConnector]: CDTParser initialized [2020-10-15 22:17:05,394 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe032_tso.oepc.i [2020-10-15 22:17:05,476 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4bfe5f1d5/9b00d718b6f1464aa8a21ac78bc66ab0/FLAG4a422f3bc [2020-10-15 22:17:06,020 INFO L306 CDTParser]: Found 1 translation units. [2020-10-15 22:17:06,021 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe032_tso.oepc.i [2020-10-15 22:17:06,037 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4bfe5f1d5/9b00d718b6f1464aa8a21ac78bc66ab0/FLAG4a422f3bc [2020-10-15 22:17:06,306 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4bfe5f1d5/9b00d718b6f1464aa8a21ac78bc66ab0 [2020-10-15 22:17:06,316 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-15 22:17:06,321 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-10-15 22:17:06,324 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-15 22:17:06,324 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-15 22:17:06,328 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-15 22:17:06,329 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 10:17:06" (1/1) ... [2020-10-15 22:17:06,333 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1ac3e6db and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 10:17:06, skipping insertion in model container [2020-10-15 22:17:06,333 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 10:17:06" (1/1) ... [2020-10-15 22:17:06,342 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-15 22:17:06,407 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-15 22:17:06,747 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-15 22:17:06,758 INFO L203 MainTranslator]: Completed pre-run [2020-10-15 22:17:06,928 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-15 22:17:07,020 INFO L208 MainTranslator]: Completed translation [2020-10-15 22:17:07,022 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 10:17:07 WrapperNode [2020-10-15 22:17:07,022 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-15 22:17:07,023 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-15 22:17:07,024 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-15 22:17:07,024 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-15 22:17:07,032 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 10:17:07" (1/1) ... [2020-10-15 22:17:07,054 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 10:17:07" (1/1) ... [2020-10-15 22:17:07,076 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-15 22:17:07,077 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-15 22:17:07,077 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-15 22:17:07,077 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-15 22:17:07,085 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 10:17:07" (1/1) ... [2020-10-15 22:17:07,086 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 10:17:07" (1/1) ... [2020-10-15 22:17:07,088 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 10:17:07" (1/1) ... [2020-10-15 22:17:07,089 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 10:17:07" (1/1) ... [2020-10-15 22:17:07,095 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 10:17:07" (1/1) ... [2020-10-15 22:17:07,097 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 10:17:07" (1/1) ... [2020-10-15 22:17:07,099 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 10:17:07" (1/1) ... [2020-10-15 22:17:07,102 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-15 22:17:07,103 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-15 22:17:07,103 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-15 22:17:07,103 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-15 22:17:07,104 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 10:17:07" (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 [2020-10-15 22:17:07,173 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-15 22:17:07,173 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-10-15 22:17:07,173 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-15 22:17:07,173 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-15 22:17:07,173 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-10-15 22:17:07,174 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-10-15 22:17:07,174 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-10-15 22:17:07,174 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-10-15 22:17:07,174 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-10-15 22:17:07,174 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-10-15 22:17:07,174 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-10-15 22:17:07,175 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-15 22:17:07,175 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-15 22:17:07,176 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-10-15 22:17:07,550 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-15 22:17:07,551 INFO L298 CfgBuilder]: Removed 8 assume(true) statements. [2020-10-15 22:17:07,553 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 10:17:07 BoogieIcfgContainer [2020-10-15 22:17:07,553 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-15 22:17:07,555 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-15 22:17:07,555 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-15 22:17:07,558 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-15 22:17:07,559 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 10:17:06" (1/3) ... [2020-10-15 22:17:07,560 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@37d958e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 10:17:07, skipping insertion in model container [2020-10-15 22:17:07,560 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 10:17:07" (2/3) ... [2020-10-15 22:17:07,560 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@37d958e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 10:17:07, skipping insertion in model container [2020-10-15 22:17:07,561 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 10:17:07" (3/3) ... [2020-10-15 22:17:07,562 INFO L111 eAbstractionObserver]: Analyzing ICFG safe032_tso.oepc.i [2020-10-15 22:17:07,574 WARN L153 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-10-15 22:17:07,575 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-15 22:17:07,583 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-15 22:17:07,584 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-10-15 22:17:07,612 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:17:07,612 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:17:07,612 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:17:07,613 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:17:07,613 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:17:07,614 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:17:07,614 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:17:07,614 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:17:07,615 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:17:07,615 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:17:07,615 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:17:07,615 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:17:07,616 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:17:07,616 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:17:07,616 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:17:07,617 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:17:07,617 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:17:07,617 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:17:07,621 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:17:07,621 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:17:07,621 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:17:07,622 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:17:07,627 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:17:07,628 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:17:07,628 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:17:07,628 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:17:07,630 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:17:07,631 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:17:07,631 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:17:07,631 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:17:07,645 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-10-15 22:17:07,664 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-15 22:17:07,665 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-15 22:17:07,665 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-15 22:17:07,665 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-15 22:17:07,665 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-15 22:17:07,665 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-15 22:17:07,665 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-15 22:17:07,665 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-15 22:17:07,678 INFO L129 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2020-10-15 22:17:07,681 INFO L144 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 77 places, 69 transitions, 153 flow [2020-10-15 22:17:07,684 INFO L111 LiptonReduction]: Starting Lipton reduction on Petri net that has 77 places, 69 transitions, 153 flow [2020-10-15 22:17:07,686 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 77 places, 69 transitions, 153 flow [2020-10-15 22:17:07,730 INFO L129 PetriNetUnfolder]: 2/66 cut-off events. [2020-10-15 22:17:07,730 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-10-15 22:17:07,738 INFO L80 FinitePrefix]: Finished finitePrefix Result has 76 conditions, 66 events. 2/66 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 49 event pairs, 0 based on Foata normal form. 0/63 useless extension candidates. Maximal degree in co-relation 55. Up to 2 conditions per place. [2020-10-15 22:17:07,741 INFO L117 LiptonReduction]: Number of co-enabled transitions 1260 [2020-10-15 22:17:09,048 INFO L132 LiptonReduction]: Checked pairs total: 2465 [2020-10-15 22:17:09,049 INFO L134 LiptonReduction]: Total number of compositions: 54 [2020-10-15 22:17:09,056 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 32 places, 23 transitions, 61 flow [2020-10-15 22:17:09,085 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 362 states. [2020-10-15 22:17:09,087 INFO L276 IsEmpty]: Start isEmpty. Operand 362 states. [2020-10-15 22:17:09,095 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-10-15 22:17:09,095 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:17:09,096 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 22:17:09,097 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 22:17:09,102 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:17:09,102 INFO L82 PathProgramCache]: Analyzing trace with hash -589225259, now seen corresponding path program 1 times [2020-10-15 22:17:09,113 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:17:09,113 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [165062572] [2020-10-15 22:17:09,114 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:17:09,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:17:09,281 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 22:17:09,281 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [165062572] [2020-10-15 22:17:09,282 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 22:17:09,283 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-15 22:17:09,283 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1309880641] [2020-10-15 22:17:09,289 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-10-15 22:17:09,289 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:17:09,305 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-10-15 22:17:09,306 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-10-15 22:17:09,308 INFO L87 Difference]: Start difference. First operand 362 states. Second operand 2 states. [2020-10-15 22:17:09,341 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:17:09,341 INFO L93 Difference]: Finished difference Result 362 states and 1072 transitions. [2020-10-15 22:17:09,341 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-10-15 22:17:09,343 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 8 [2020-10-15 22:17:09,343 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:17:09,365 INFO L225 Difference]: With dead ends: 362 [2020-10-15 22:17:09,365 INFO L226 Difference]: Without dead ends: 298 [2020-10-15 22:17:09,366 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-10-15 22:17:09,398 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 298 states. [2020-10-15 22:17:09,465 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 298 to 298. [2020-10-15 22:17:09,466 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 298 states. [2020-10-15 22:17:09,471 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 298 states to 298 states and 864 transitions. [2020-10-15 22:17:09,472 INFO L78 Accepts]: Start accepts. Automaton has 298 states and 864 transitions. Word has length 8 [2020-10-15 22:17:09,474 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:17:09,474 INFO L481 AbstractCegarLoop]: Abstraction has 298 states and 864 transitions. [2020-10-15 22:17:09,474 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-10-15 22:17:09,474 INFO L276 IsEmpty]: Start isEmpty. Operand 298 states and 864 transitions. [2020-10-15 22:17:09,475 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-10-15 22:17:09,476 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:17:09,476 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 22:17:09,480 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-15 22:17:09,481 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 22:17:09,481 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:17:09,481 INFO L82 PathProgramCache]: Analyzing trace with hash -1086118353, now seen corresponding path program 1 times [2020-10-15 22:17:09,481 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:17:09,482 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2083395449] [2020-10-15 22:17:09,482 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:17:09,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:17:09,628 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 22:17:09,629 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2083395449] [2020-10-15 22:17:09,629 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 22:17:09,630 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-15 22:17:09,630 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [741590709] [2020-10-15 22:17:09,631 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-15 22:17:09,632 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:17:09,632 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-15 22:17:09,632 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-15 22:17:09,632 INFO L87 Difference]: Start difference. First operand 298 states and 864 transitions. Second operand 3 states. [2020-10-15 22:17:09,665 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:17:09,665 INFO L93 Difference]: Finished difference Result 217 states and 540 transitions. [2020-10-15 22:17:09,667 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-15 22:17:09,667 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 9 [2020-10-15 22:17:09,668 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:17:09,670 INFO L225 Difference]: With dead ends: 217 [2020-10-15 22:17:09,670 INFO L226 Difference]: Without dead ends: 217 [2020-10-15 22:17:09,673 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-15 22:17:09,675 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 217 states. [2020-10-15 22:17:09,693 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 217 to 217. [2020-10-15 22:17:09,694 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 217 states. [2020-10-15 22:17:09,700 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 217 states to 217 states and 540 transitions. [2020-10-15 22:17:09,700 INFO L78 Accepts]: Start accepts. Automaton has 217 states and 540 transitions. Word has length 9 [2020-10-15 22:17:09,700 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:17:09,701 INFO L481 AbstractCegarLoop]: Abstraction has 217 states and 540 transitions. [2020-10-15 22:17:09,701 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-15 22:17:09,701 INFO L276 IsEmpty]: Start isEmpty. Operand 217 states and 540 transitions. [2020-10-15 22:17:09,702 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-10-15 22:17:09,702 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:17:09,703 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 22:17:09,703 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-15 22:17:09,703 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 22:17:09,703 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:17:09,704 INFO L82 PathProgramCache]: Analyzing trace with hash -954674037, now seen corresponding path program 1 times [2020-10-15 22:17:09,705 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:17:09,706 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1180115872] [2020-10-15 22:17:09,706 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:17:09,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:17:09,818 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 22:17:09,818 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1180115872] [2020-10-15 22:17:09,818 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 22:17:09,819 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-15 22:17:09,819 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2145323192] [2020-10-15 22:17:09,819 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-15 22:17:09,820 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:17:09,820 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-15 22:17:09,820 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-10-15 22:17:09,821 INFO L87 Difference]: Start difference. First operand 217 states and 540 transitions. Second operand 4 states. [2020-10-15 22:17:09,844 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:17:09,845 INFO L93 Difference]: Finished difference Result 136 states and 297 transitions. [2020-10-15 22:17:09,845 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-15 22:17:09,845 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 12 [2020-10-15 22:17:09,846 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:17:09,847 INFO L225 Difference]: With dead ends: 136 [2020-10-15 22:17:09,847 INFO L226 Difference]: Without dead ends: 136 [2020-10-15 22:17:09,848 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-10-15 22:17:09,849 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 136 states. [2020-10-15 22:17:09,853 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 136 to 136. [2020-10-15 22:17:09,853 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 136 states. [2020-10-15 22:17:09,854 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 136 states to 136 states and 297 transitions. [2020-10-15 22:17:09,854 INFO L78 Accepts]: Start accepts. Automaton has 136 states and 297 transitions. Word has length 12 [2020-10-15 22:17:09,855 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:17:09,855 INFO L481 AbstractCegarLoop]: Abstraction has 136 states and 297 transitions. [2020-10-15 22:17:09,855 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-15 22:17:09,855 INFO L276 IsEmpty]: Start isEmpty. Operand 136 states and 297 transitions. [2020-10-15 22:17:09,857 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-10-15 22:17:09,857 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:17:09,857 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 22:17:09,857 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-15 22:17:09,857 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 22:17:09,858 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:17:09,858 INFO L82 PathProgramCache]: Analyzing trace with hash -1044268816, now seen corresponding path program 1 times [2020-10-15 22:17:09,858 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:17:09,859 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [790017313] [2020-10-15 22:17:09,859 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:17:09,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:17:09,917 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 22:17:09,917 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [790017313] [2020-10-15 22:17:09,917 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 22:17:09,918 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-15 22:17:09,918 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [40278026] [2020-10-15 22:17:09,918 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-15 22:17:09,919 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:17:09,919 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-15 22:17:09,919 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2020-10-15 22:17:09,920 INFO L87 Difference]: Start difference. First operand 136 states and 297 transitions. Second operand 5 states. [2020-10-15 22:17:09,948 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:17:09,948 INFO L93 Difference]: Finished difference Result 109 states and 243 transitions. [2020-10-15 22:17:09,949 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-15 22:17:09,949 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 15 [2020-10-15 22:17:09,949 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:17:09,950 INFO L225 Difference]: With dead ends: 109 [2020-10-15 22:17:09,950 INFO L226 Difference]: Without dead ends: 109 [2020-10-15 22:17:09,951 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2020-10-15 22:17:09,952 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109 states. [2020-10-15 22:17:09,954 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109 to 109. [2020-10-15 22:17:09,955 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 109 states. [2020-10-15 22:17:09,955 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 109 states and 243 transitions. [2020-10-15 22:17:09,956 INFO L78 Accepts]: Start accepts. Automaton has 109 states and 243 transitions. Word has length 15 [2020-10-15 22:17:09,956 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:17:09,956 INFO L481 AbstractCegarLoop]: Abstraction has 109 states and 243 transitions. [2020-10-15 22:17:09,956 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-15 22:17:09,957 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states and 243 transitions. [2020-10-15 22:17:09,958 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-10-15 22:17:09,958 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:17:09,958 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 22:17:09,959 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-15 22:17:09,959 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 22:17:09,959 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:17:09,959 INFO L82 PathProgramCache]: Analyzing trace with hash 1052552835, now seen corresponding path program 1 times [2020-10-15 22:17:09,960 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:17:09,960 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [77044703] [2020-10-15 22:17:09,960 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:17:09,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:17:10,063 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 22:17:10,064 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [77044703] [2020-10-15 22:17:10,064 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 22:17:10,064 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-15 22:17:10,065 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2097239477] [2020-10-15 22:17:10,065 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-15 22:17:10,065 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:17:10,066 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-15 22:17:10,066 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-15 22:17:10,066 INFO L87 Difference]: Start difference. First operand 109 states and 243 transitions. Second operand 5 states. [2020-10-15 22:17:10,106 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:17:10,107 INFO L93 Difference]: Finished difference Result 174 states and 369 transitions. [2020-10-15 22:17:10,107 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-15 22:17:10,107 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 18 [2020-10-15 22:17:10,108 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:17:10,109 INFO L225 Difference]: With dead ends: 174 [2020-10-15 22:17:10,109 INFO L226 Difference]: Without dead ends: 136 [2020-10-15 22:17:10,109 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-10-15 22:17:10,110 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 136 states. [2020-10-15 22:17:10,113 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 136 to 109. [2020-10-15 22:17:10,113 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 109 states. [2020-10-15 22:17:10,114 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 109 states and 239 transitions. [2020-10-15 22:17:10,114 INFO L78 Accepts]: Start accepts. Automaton has 109 states and 239 transitions. Word has length 18 [2020-10-15 22:17:10,114 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:17:10,114 INFO L481 AbstractCegarLoop]: Abstraction has 109 states and 239 transitions. [2020-10-15 22:17:10,114 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-15 22:17:10,115 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states and 239 transitions. [2020-10-15 22:17:10,116 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-10-15 22:17:10,116 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:17:10,116 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 22:17:10,116 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-15 22:17:10,116 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 22:17:10,117 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:17:10,117 INFO L82 PathProgramCache]: Analyzing trace with hash 645557555, now seen corresponding path program 2 times [2020-10-15 22:17:10,117 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:17:10,117 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1794625478] [2020-10-15 22:17:10,118 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:17:10,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:17:10,173 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 22:17:10,174 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1794625478] [2020-10-15 22:17:10,174 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 22:17:10,174 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-15 22:17:10,175 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1811630294] [2020-10-15 22:17:10,175 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-15 22:17:10,175 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:17:10,176 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-15 22:17:10,176 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-15 22:17:10,176 INFO L87 Difference]: Start difference. First operand 109 states and 239 transitions. Second operand 5 states. [2020-10-15 22:17:10,222 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:17:10,222 INFO L93 Difference]: Finished difference Result 176 states and 358 transitions. [2020-10-15 22:17:10,223 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-15 22:17:10,223 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 18 [2020-10-15 22:17:10,224 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:17:10,225 INFO L225 Difference]: With dead ends: 176 [2020-10-15 22:17:10,225 INFO L226 Difference]: Without dead ends: 124 [2020-10-15 22:17:10,226 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-10-15 22:17:10,227 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 124 states. [2020-10-15 22:17:10,229 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 124 to 109. [2020-10-15 22:17:10,229 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 109 states. [2020-10-15 22:17:10,230 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 109 states and 232 transitions. [2020-10-15 22:17:10,230 INFO L78 Accepts]: Start accepts. Automaton has 109 states and 232 transitions. Word has length 18 [2020-10-15 22:17:10,230 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:17:10,230 INFO L481 AbstractCegarLoop]: Abstraction has 109 states and 232 transitions. [2020-10-15 22:17:10,231 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-15 22:17:10,231 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states and 232 transitions. [2020-10-15 22:17:10,231 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-10-15 22:17:10,231 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:17:10,232 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 22:17:10,232 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-15 22:17:10,232 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 22:17:10,232 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:17:10,233 INFO L82 PathProgramCache]: Analyzing trace with hash -457536705, now seen corresponding path program 3 times [2020-10-15 22:17:10,233 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:17:10,233 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1352867931] [2020-10-15 22:17:10,233 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:17:10,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:17:10,298 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 22:17:10,298 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1352867931] [2020-10-15 22:17:10,298 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 22:17:10,298 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-15 22:17:10,299 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [698508679] [2020-10-15 22:17:10,299 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-15 22:17:10,299 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:17:10,299 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-15 22:17:10,300 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-15 22:17:10,300 INFO L87 Difference]: Start difference. First operand 109 states and 232 transitions. Second operand 5 states. [2020-10-15 22:17:10,362 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:17:10,363 INFO L93 Difference]: Finished difference Result 175 states and 348 transitions. [2020-10-15 22:17:10,363 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-15 22:17:10,363 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 18 [2020-10-15 22:17:10,363 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:17:10,364 INFO L225 Difference]: With dead ends: 175 [2020-10-15 22:17:10,364 INFO L226 Difference]: Without dead ends: 55 [2020-10-15 22:17:10,365 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-10-15 22:17:10,365 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states. [2020-10-15 22:17:10,367 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 55. [2020-10-15 22:17:10,367 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 55 states. [2020-10-15 22:17:10,367 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 99 transitions. [2020-10-15 22:17:10,368 INFO L78 Accepts]: Start accepts. Automaton has 55 states and 99 transitions. Word has length 18 [2020-10-15 22:17:10,368 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:17:10,368 INFO L481 AbstractCegarLoop]: Abstraction has 55 states and 99 transitions. [2020-10-15 22:17:10,368 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-15 22:17:10,368 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 99 transitions. [2020-10-15 22:17:10,369 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-10-15 22:17:10,369 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:17:10,369 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 22:17:10,369 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-15 22:17:10,369 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 22:17:10,369 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:17:10,370 INFO L82 PathProgramCache]: Analyzing trace with hash -1271535879, now seen corresponding path program 4 times [2020-10-15 22:17:10,370 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:17:10,370 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1694819256] [2020-10-15 22:17:10,370 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:17:10,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:17:10,416 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 22:17:10,417 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1694819256] [2020-10-15 22:17:10,417 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 22:17:10,417 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-15 22:17:10,417 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [409746811] [2020-10-15 22:17:10,418 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-15 22:17:10,418 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:17:10,418 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-15 22:17:10,419 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-15 22:17:10,419 INFO L87 Difference]: Start difference. First operand 55 states and 99 transitions. Second operand 4 states. [2020-10-15 22:17:10,438 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:17:10,439 INFO L93 Difference]: Finished difference Result 54 states and 98 transitions. [2020-10-15 22:17:10,439 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-15 22:17:10,439 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 18 [2020-10-15 22:17:10,439 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:17:10,440 INFO L225 Difference]: With dead ends: 54 [2020-10-15 22:17:10,440 INFO L226 Difference]: Without dead ends: 0 [2020-10-15 22:17:10,440 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-15 22:17:10,440 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-15 22:17:10,440 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-15 22:17:10,441 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-15 22:17:10,441 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-15 22:17:10,441 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 18 [2020-10-15 22:17:10,441 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:17:10,441 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-15 22:17:10,441 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-15 22:17:10,442 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-15 22:17:10,442 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-15 22:17:10,442 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-15 22:17:10,445 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.10 10:17:10 BasicIcfg [2020-10-15 22:17:10,446 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-15 22:17:10,449 INFO L168 Benchmark]: Toolchain (without parser) took 4129.75 ms. Allocated memory was 249.6 MB in the beginning and 367.5 MB in the end (delta: 118.0 MB). Free memory was 206.0 MB in the beginning and 274.4 MB in the end (delta: -68.3 MB). Peak memory consumption was 49.6 MB. Max. memory is 14.2 GB. [2020-10-15 22:17:10,450 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 249.6 MB. Free memory was 227.6 MB in the beginning and 226.8 MB in the end (delta: 839.0 kB). Peak memory consumption was 839.0 kB. Max. memory is 14.2 GB. [2020-10-15 22:17:10,451 INFO L168 Benchmark]: CACSL2BoogieTranslator took 698.71 ms. Allocated memory was 249.6 MB in the beginning and 308.8 MB in the end (delta: 59.2 MB). Free memory was 205.2 MB in the beginning and 264.7 MB in the end (delta: -59.5 MB). Peak memory consumption was 34.1 MB. Max. memory is 14.2 GB. [2020-10-15 22:17:10,451 INFO L168 Benchmark]: Boogie Procedure Inliner took 53.03 ms. Allocated memory is still 308.8 MB. Free memory was 264.7 MB in the beginning and 262.1 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.6 MB. Max. memory is 14.2 GB. [2020-10-15 22:17:10,452 INFO L168 Benchmark]: Boogie Preprocessor took 26.12 ms. Allocated memory is still 308.8 MB. Free memory was 262.1 MB in the beginning and 260.4 MB in the end (delta: 1.7 MB). Peak memory consumption was 1.7 MB. Max. memory is 14.2 GB. [2020-10-15 22:17:10,453 INFO L168 Benchmark]: RCFGBuilder took 450.33 ms. Allocated memory is still 308.8 MB. Free memory was 260.4 MB in the beginning and 238.3 MB in the end (delta: 22.1 MB). Peak memory consumption was 22.1 MB. Max. memory is 14.2 GB. [2020-10-15 22:17:10,454 INFO L168 Benchmark]: TraceAbstraction took 2891.15 ms. Allocated memory was 308.8 MB in the beginning and 367.5 MB in the end (delta: 58.7 MB). Free memory was 237.5 MB in the beginning and 274.4 MB in the end (delta: -36.9 MB). Peak memory consumption was 21.8 MB. Max. memory is 14.2 GB. [2020-10-15 22:17:10,459 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 249.6 MB. Free memory was 227.6 MB in the beginning and 226.8 MB in the end (delta: 839.0 kB). Peak memory consumption was 839.0 kB. Max. memory is 14.2 GB. * CACSL2BoogieTranslator took 698.71 ms. Allocated memory was 249.6 MB in the beginning and 308.8 MB in the end (delta: 59.2 MB). Free memory was 205.2 MB in the beginning and 264.7 MB in the end (delta: -59.5 MB). Peak memory consumption was 34.1 MB. Max. memory is 14.2 GB. * Boogie Procedure Inliner took 53.03 ms. Allocated memory is still 308.8 MB. Free memory was 264.7 MB in the beginning and 262.1 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.6 MB. Max. memory is 14.2 GB. * Boogie Preprocessor took 26.12 ms. Allocated memory is still 308.8 MB. Free memory was 262.1 MB in the beginning and 260.4 MB in the end (delta: 1.7 MB). Peak memory consumption was 1.7 MB. Max. memory is 14.2 GB. * RCFGBuilder took 450.33 ms. Allocated memory is still 308.8 MB. Free memory was 260.4 MB in the beginning and 238.3 MB in the end (delta: 22.1 MB). Peak memory consumption was 22.1 MB. Max. memory is 14.2 GB. * TraceAbstraction took 2891.15 ms. Allocated memory was 308.8 MB in the beginning and 367.5 MB in the end (delta: 58.7 MB). Free memory was 237.5 MB in the beginning and 274.4 MB in the end (delta: -36.9 MB). Peak memory consumption was 21.8 MB. Max. memory is 14.2 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 784 VarBasedMoverChecksPositive, 45 VarBasedMoverChecksNegative, 9 SemBasedMoverChecksPositive, 36 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.2s, 64 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 1.3s, 77 PlacesBefore, 32 PlacesAfterwards, 69 TransitionsBefore, 23 TransitionsAfterwards, 1260 CoEnabledTransitionPairs, 5 FixpointIterations, 13 TrivialSequentialCompositions, 34 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 6 ConcurrentYvCompositions, 1 ChoiceCompositions, 54 TotalNumberOfCompositions, 2465 MoverChecksTotal - PositiveResult [Line: 7]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 68 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 2.7s, OverallIterations: 8, TraceHistogramMax: 1, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.4s, HoareTripleCheckerStatistics: 162 SDtfs, 105 SDslu, 267 SDs, 0 SdLazy, 91 SolverSat, 10 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 37 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=362occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 8 MinimizatonAttempts, 42 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 116 NumberOfCodeBlocks, 116 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 108 ConstructedInterpolants, 0 QuantifiedInterpolants, 3814 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...