/usr/bin/java -Xmx8000000000 -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/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/pthread-wmm/safe009_tso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-b09bf87 [2020-10-16 11:18:25,997 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-16 11:18:26,003 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-16 11:18:26,043 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-16 11:18:26,043 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-16 11:18:26,051 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-16 11:18:26,054 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-16 11:18:26,059 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-16 11:18:26,062 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-16 11:18:26,066 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-16 11:18:26,067 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-16 11:18:26,068 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-16 11:18:26,068 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-16 11:18:26,071 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-16 11:18:26,074 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-16 11:18:26,076 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-16 11:18:26,077 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-16 11:18:26,078 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-16 11:18:26,079 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-16 11:18:26,089 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-16 11:18:26,091 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-16 11:18:26,092 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-16 11:18:26,093 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-16 11:18:26,093 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-16 11:18:26,105 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-10-16 11:18:26,110 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-16 11:18:26,113 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-16 11:18:26,114 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-16 11:18:26,116 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-16 11:18:26,121 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-16 11:18:26,122 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-16 11:18:26,123 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-16 11:18:26,123 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-16 11:18:26,123 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-16 11:18:26,124 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-16 11:18:26,126 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-16 11:18:26,129 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-16 11:18:26,176 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-16 11:18:26,176 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-16 11:18:26,178 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-16 11:18:26,178 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-16 11:18:26,178 INFO L138 SettingsManager]: * Use SBE=true [2020-10-16 11:18:26,178 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-16 11:18:26,179 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-16 11:18:26,179 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-16 11:18:26,179 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-16 11:18:26,179 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-16 11:18:26,180 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-16 11:18:26,181 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-16 11:18:26,181 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-16 11:18:26,181 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-16 11:18:26,181 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-16 11:18:26,182 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-16 11:18:26,182 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-16 11:18:26,182 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-16 11:18:26,182 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-16 11:18:26,182 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-16 11:18:26,182 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-16 11:18:26,183 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-16 11:18:26,183 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-16 11:18:26,183 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-16 11:18:26,183 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-16 11:18:26,183 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-16 11:18:26,184 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-16 11:18:26,184 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-16 11:18:26,184 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-16 11:18:26,184 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-10-16 11:18:26,478 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-16 11:18:26,492 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-16 11:18:26,495 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-16 11:18:26,496 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-16 11:18:26,497 INFO L275 PluginConnector]: CDTParser initialized [2020-10-16 11:18:26,498 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe009_tso.oepc.i [2020-10-16 11:18:26,562 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/470ac1c10/3426696528684e8295f302505bec5610/FLAGa45d05066 [2020-10-16 11:18:27,073 INFO L306 CDTParser]: Found 1 translation units. [2020-10-16 11:18:27,074 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/pthread-wmm/safe009_tso.oepc.i [2020-10-16 11:18:27,089 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/470ac1c10/3426696528684e8295f302505bec5610/FLAGa45d05066 [2020-10-16 11:18:27,355 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/470ac1c10/3426696528684e8295f302505bec5610 [2020-10-16 11:18:27,363 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-16 11:18:27,365 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-10-16 11:18:27,366 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-16 11:18:27,366 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-16 11:18:27,369 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-16 11:18:27,370 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 11:18:27" (1/1) ... [2020-10-16 11:18:27,372 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@647a3d93 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:18:27, skipping insertion in model container [2020-10-16 11:18:27,372 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 11:18:27" (1/1) ... [2020-10-16 11:18:27,378 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-16 11:18:27,431 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-16 11:18:27,925 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-16 11:18:27,940 INFO L203 MainTranslator]: Completed pre-run [2020-10-16 11:18:28,029 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-16 11:18:28,105 INFO L208 MainTranslator]: Completed translation [2020-10-16 11:18:28,106 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:18:28 WrapperNode [2020-10-16 11:18:28,106 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-16 11:18:28,107 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-16 11:18:28,107 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-16 11:18:28,107 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-16 11:18:28,117 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:18:28" (1/1) ... [2020-10-16 11:18:28,134 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:18:28" (1/1) ... [2020-10-16 11:18:28,159 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-16 11:18:28,160 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-16 11:18:28,160 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-16 11:18:28,160 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-16 11:18:28,170 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:18:28" (1/1) ... [2020-10-16 11:18:28,170 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:18:28" (1/1) ... [2020-10-16 11:18:28,174 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:18:28" (1/1) ... [2020-10-16 11:18:28,174 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:18:28" (1/1) ... [2020-10-16 11:18:28,181 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:18:28" (1/1) ... [2020-10-16 11:18:28,183 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:18:28" (1/1) ... [2020-10-16 11:18:28,185 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:18:28" (1/1) ... [2020-10-16 11:18:28,188 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-16 11:18:28,189 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-16 11:18:28,189 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-16 11:18:28,189 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-16 11:18:28,190 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:18:28" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/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 [2020-10-16 11:18:28,262 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-16 11:18:28,263 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-10-16 11:18:28,263 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-16 11:18:28,263 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-16 11:18:28,263 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-10-16 11:18:28,264 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-10-16 11:18:28,264 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-10-16 11:18:28,264 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-10-16 11:18:28,265 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-10-16 11:18:28,265 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-10-16 11:18:28,265 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-10-16 11:18:28,265 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-16 11:18:28,266 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-16 11:18:28,268 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-10-16 11:18:28,605 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-16 11:18:28,605 INFO L298 CfgBuilder]: Removed 8 assume(true) statements. [2020-10-16 11:18:28,607 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 11:18:28 BoogieIcfgContainer [2020-10-16 11:18:28,608 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-16 11:18:28,609 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-16 11:18:28,609 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-16 11:18:28,613 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-16 11:18:28,613 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.10 11:18:27" (1/3) ... [2020-10-16 11:18:28,614 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@928d222 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 11:18:28, skipping insertion in model container [2020-10-16 11:18:28,615 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:18:28" (2/3) ... [2020-10-16 11:18:28,615 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@928d222 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 11:18:28, skipping insertion in model container [2020-10-16 11:18:28,616 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 11:18:28" (3/3) ... [2020-10-16 11:18:28,618 INFO L111 eAbstractionObserver]: Analyzing ICFG safe009_tso.oepc.i [2020-10-16 11:18:28,633 WARN L153 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-10-16 11:18:28,634 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-16 11:18:28,641 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-16 11:18:28,642 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-10-16 11:18:28,675 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:18:28,676 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:18:28,676 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:18:28,677 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:18:28,677 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:18:28,678 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:18:28,679 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:18:28,679 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:18:28,679 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:18:28,679 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:18:28,680 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:18:28,680 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:18:28,681 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:18:28,681 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:18:28,682 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:18:28,682 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:18:28,682 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:18:28,683 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:18:28,687 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:18:28,687 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:18:28,688 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:18:28,688 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:18:28,694 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:18:28,695 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:18:28,695 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:18:28,696 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:18:28,698 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:18:28,699 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:18:28,699 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:18:28,699 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:18:28,702 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2020-10-16 11:18:28,722 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-10-16 11:18:28,753 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-16 11:18:28,754 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-16 11:18:28,754 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-16 11:18:28,754 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-16 11:18:28,755 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-16 11:18:28,755 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-16 11:18:28,755 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-16 11:18:28,756 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-16 11:18:28,777 INFO L129 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2020-10-16 11:18:28,780 INFO L144 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 76 places, 68 transitions, 151 flow [2020-10-16 11:18:28,782 INFO L111 LiptonReduction]: Starting Lipton reduction on Petri net that has 76 places, 68 transitions, 151 flow [2020-10-16 11:18:28,784 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 76 places, 68 transitions, 151 flow [2020-10-16 11:18:28,839 INFO L129 PetriNetUnfolder]: 2/65 cut-off events. [2020-10-16 11:18:28,839 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-10-16 11:18:28,845 INFO L80 FinitePrefix]: Finished finitePrefix Result has 75 conditions, 65 events. 2/65 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. 0/62 useless extension candidates. Maximal degree in co-relation 54. Up to 2 conditions per place. [2020-10-16 11:18:28,847 INFO L117 LiptonReduction]: Number of co-enabled transitions 1186 [2020-10-16 11:18:30,333 INFO L132 LiptonReduction]: Checked pairs total: 2093 [2020-10-16 11:18:30,334 INFO L134 LiptonReduction]: Total number of compositions: 56 [2020-10-16 11:18:30,340 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 30 places, 20 transitions, 55 flow [2020-10-16 11:18:30,363 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 234 states. [2020-10-16 11:18:30,365 INFO L276 IsEmpty]: Start isEmpty. Operand 234 states. [2020-10-16 11:18:30,372 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-10-16 11:18:30,372 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 11:18:30,373 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 11:18:30,374 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 11:18:30,379 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 11:18:30,379 INFO L82 PathProgramCache]: Analyzing trace with hash 364476878, now seen corresponding path program 1 times [2020-10-16 11:18:30,389 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 11:18:30,390 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [679214305] [2020-10-16 11:18:30,390 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 11:18:30,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 11:18:30,597 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 11:18:30,598 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [679214305] [2020-10-16 11:18:30,599 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 11:18:30,599 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-10-16 11:18:30,600 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1235118817] [2020-10-16 11:18:30,605 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-16 11:18:30,605 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 11:18:30,620 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-16 11:18:30,621 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-16 11:18:30,623 INFO L87 Difference]: Start difference. First operand 234 states. Second operand 3 states. [2020-10-16 11:18:30,674 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 11:18:30,675 INFO L93 Difference]: Finished difference Result 222 states and 615 transitions. [2020-10-16 11:18:30,675 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-16 11:18:30,677 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2020-10-16 11:18:30,677 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 11:18:30,692 INFO L225 Difference]: With dead ends: 222 [2020-10-16 11:18:30,693 INFO L226 Difference]: Without dead ends: 174 [2020-10-16 11:18:30,694 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-16 11:18:30,718 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 174 states. [2020-10-16 11:18:30,749 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 174 to 174. [2020-10-16 11:18:30,750 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 174 states. [2020-10-16 11:18:30,754 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 174 states to 174 states and 463 transitions. [2020-10-16 11:18:30,756 INFO L78 Accepts]: Start accepts. Automaton has 174 states and 463 transitions. Word has length 8 [2020-10-16 11:18:30,757 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 11:18:30,757 INFO L481 AbstractCegarLoop]: Abstraction has 174 states and 463 transitions. [2020-10-16 11:18:30,757 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-16 11:18:30,757 INFO L276 IsEmpty]: Start isEmpty. Operand 174 states and 463 transitions. [2020-10-16 11:18:30,759 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-10-16 11:18:30,759 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 11:18:30,759 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 11:18:30,760 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-16 11:18:30,760 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 11:18:30,760 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 11:18:30,760 INFO L82 PathProgramCache]: Analyzing trace with hash -1586119381, now seen corresponding path program 1 times [2020-10-16 11:18:30,761 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 11:18:30,761 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [908555605] [2020-10-16 11:18:30,761 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 11:18:30,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 11:18:30,843 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 11:18:30,844 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [908555605] [2020-10-16 11:18:30,844 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 11:18:30,845 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-16 11:18:30,845 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [109791936] [2020-10-16 11:18:30,846 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-16 11:18:30,847 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 11:18:30,847 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-16 11:18:30,847 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-16 11:18:30,847 INFO L87 Difference]: Start difference. First operand 174 states and 463 transitions. Second operand 4 states. [2020-10-16 11:18:30,878 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 11:18:30,879 INFO L93 Difference]: Finished difference Result 204 states and 513 transitions. [2020-10-16 11:18:30,879 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-16 11:18:30,879 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 9 [2020-10-16 11:18:30,880 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 11:18:30,881 INFO L225 Difference]: With dead ends: 204 [2020-10-16 11:18:30,881 INFO L226 Difference]: Without dead ends: 108 [2020-10-16 11:18:30,882 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-16 11:18:30,885 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 108 states. [2020-10-16 11:18:30,893 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 108 to 108. [2020-10-16 11:18:30,894 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 108 states. [2020-10-16 11:18:30,895 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 108 states to 108 states and 253 transitions. [2020-10-16 11:18:30,896 INFO L78 Accepts]: Start accepts. Automaton has 108 states and 253 transitions. Word has length 9 [2020-10-16 11:18:30,896 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 11:18:30,896 INFO L481 AbstractCegarLoop]: Abstraction has 108 states and 253 transitions. [2020-10-16 11:18:30,896 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-16 11:18:30,896 INFO L276 IsEmpty]: Start isEmpty. Operand 108 states and 253 transitions. [2020-10-16 11:18:30,897 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-10-16 11:18:30,897 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 11:18:30,898 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 11:18:30,898 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-16 11:18:30,898 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 11:18:30,898 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 11:18:30,899 INFO L82 PathProgramCache]: Analyzing trace with hash 409264718, now seen corresponding path program 1 times [2020-10-16 11:18:30,899 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 11:18:30,899 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1932199355] [2020-10-16 11:18:30,899 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 11:18:30,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 11:18:30,991 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 11:18:30,991 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1932199355] [2020-10-16 11:18:30,992 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 11:18:30,992 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-10-16 11:18:30,992 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1192561320] [2020-10-16 11:18:30,992 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-16 11:18:30,993 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 11:18:30,993 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-16 11:18:30,993 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-16 11:18:30,994 INFO L87 Difference]: Start difference. First operand 108 states and 253 transitions. Second operand 3 states. [2020-10-16 11:18:31,006 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 11:18:31,006 INFO L93 Difference]: Finished difference Result 106 states and 246 transitions. [2020-10-16 11:18:31,007 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-16 11:18:31,007 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 11 [2020-10-16 11:18:31,007 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 11:18:31,008 INFO L225 Difference]: With dead ends: 106 [2020-10-16 11:18:31,009 INFO L226 Difference]: Without dead ends: 106 [2020-10-16 11:18:31,009 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-16 11:18:31,011 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 106 states. [2020-10-16 11:18:31,018 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 106 to 106. [2020-10-16 11:18:31,018 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 106 states. [2020-10-16 11:18:31,019 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106 states to 106 states and 246 transitions. [2020-10-16 11:18:31,020 INFO L78 Accepts]: Start accepts. Automaton has 106 states and 246 transitions. Word has length 11 [2020-10-16 11:18:31,020 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 11:18:31,020 INFO L481 AbstractCegarLoop]: Abstraction has 106 states and 246 transitions. [2020-10-16 11:18:31,020 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-16 11:18:31,020 INFO L276 IsEmpty]: Start isEmpty. Operand 106 states and 246 transitions. [2020-10-16 11:18:31,021 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-10-16 11:18:31,022 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 11:18:31,022 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 11:18:31,022 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-16 11:18:31,022 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 11:18:31,022 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 11:18:31,023 INFO L82 PathProgramCache]: Analyzing trace with hash -197699224, now seen corresponding path program 1 times [2020-10-16 11:18:31,023 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 11:18:31,023 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [593561487] [2020-10-16 11:18:31,023 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 11:18:31,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 11:18:31,089 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 11:18:31,089 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [593561487] [2020-10-16 11:18:31,090 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 11:18:31,090 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-16 11:18:31,090 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1265335709] [2020-10-16 11:18:31,091 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-16 11:18:31,091 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 11:18:31,091 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-16 11:18:31,091 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-16 11:18:31,092 INFO L87 Difference]: Start difference. First operand 106 states and 246 transitions. Second operand 4 states. [2020-10-16 11:18:31,116 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 11:18:31,117 INFO L93 Difference]: Finished difference Result 138 states and 314 transitions. [2020-10-16 11:18:31,117 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-16 11:18:31,117 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 12 [2020-10-16 11:18:31,118 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 11:18:31,118 INFO L225 Difference]: With dead ends: 138 [2020-10-16 11:18:31,118 INFO L226 Difference]: Without dead ends: 60 [2020-10-16 11:18:31,119 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-16 11:18:31,120 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60 states. [2020-10-16 11:18:31,124 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60 to 60. [2020-10-16 11:18:31,125 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 60 states. [2020-10-16 11:18:31,125 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 129 transitions. [2020-10-16 11:18:31,125 INFO L78 Accepts]: Start accepts. Automaton has 60 states and 129 transitions. Word has length 12 [2020-10-16 11:18:31,126 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 11:18:31,126 INFO L481 AbstractCegarLoop]: Abstraction has 60 states and 129 transitions. [2020-10-16 11:18:31,126 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-16 11:18:31,126 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 129 transitions. [2020-10-16 11:18:31,127 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-10-16 11:18:31,127 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 11:18:31,127 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 11:18:31,128 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-16 11:18:31,128 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 11:18:31,128 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 11:18:31,128 INFO L82 PathProgramCache]: Analyzing trace with hash 1143893480, now seen corresponding path program 2 times [2020-10-16 11:18:31,128 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 11:18:31,129 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1185388643] [2020-10-16 11:18:31,129 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 11:18:31,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 11:18:31,266 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 11:18:31,267 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1185388643] [2020-10-16 11:18:31,267 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 11:18:31,267 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-16 11:18:31,267 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [599369000] [2020-10-16 11:18:31,268 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-16 11:18:31,268 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 11:18:31,268 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-16 11:18:31,269 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-16 11:18:31,269 INFO L87 Difference]: Start difference. First operand 60 states and 129 transitions. Second operand 4 states. [2020-10-16 11:18:31,298 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 11:18:31,299 INFO L93 Difference]: Finished difference Result 73 states and 142 transitions. [2020-10-16 11:18:31,299 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-16 11:18:31,299 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 12 [2020-10-16 11:18:31,300 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 11:18:31,300 INFO L225 Difference]: With dead ends: 73 [2020-10-16 11:18:31,300 INFO L226 Difference]: Without dead ends: 52 [2020-10-16 11:18:31,301 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-16 11:18:31,302 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2020-10-16 11:18:31,305 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 52. [2020-10-16 11:18:31,305 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 52 states. [2020-10-16 11:18:31,306 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 101 transitions. [2020-10-16 11:18:31,306 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 101 transitions. Word has length 12 [2020-10-16 11:18:31,307 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 11:18:31,307 INFO L481 AbstractCegarLoop]: Abstraction has 52 states and 101 transitions. [2020-10-16 11:18:31,307 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-16 11:18:31,307 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 101 transitions. [2020-10-16 11:18:31,308 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-10-16 11:18:31,308 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 11:18:31,308 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 11:18:31,308 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-16 11:18:31,308 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 11:18:31,308 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 11:18:31,309 INFO L82 PathProgramCache]: Analyzing trace with hash -1190230917, now seen corresponding path program 1 times [2020-10-16 11:18:31,309 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 11:18:31,309 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1614394956] [2020-10-16 11:18:31,309 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 11:18:31,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 11:18:31,380 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 11:18:31,381 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1614394956] [2020-10-16 11:18:31,381 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 11:18:31,381 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-16 11:18:31,382 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1449941987] [2020-10-16 11:18:31,382 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-16 11:18:31,382 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 11:18:31,382 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-16 11:18:31,383 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-16 11:18:31,383 INFO L87 Difference]: Start difference. First operand 52 states and 101 transitions. Second operand 5 states. [2020-10-16 11:18:31,436 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 11:18:31,437 INFO L93 Difference]: Finished difference Result 53 states and 91 transitions. [2020-10-16 11:18:31,437 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-16 11:18:31,437 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 13 [2020-10-16 11:18:31,438 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 11:18:31,438 INFO L225 Difference]: With dead ends: 53 [2020-10-16 11:18:31,438 INFO L226 Difference]: Without dead ends: 38 [2020-10-16 11:18:31,439 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-10-16 11:18:31,440 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2020-10-16 11:18:31,442 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 38. [2020-10-16 11:18:31,442 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38 states. [2020-10-16 11:18:31,443 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 61 transitions. [2020-10-16 11:18:31,443 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 61 transitions. Word has length 13 [2020-10-16 11:18:31,443 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 11:18:31,444 INFO L481 AbstractCegarLoop]: Abstraction has 38 states and 61 transitions. [2020-10-16 11:18:31,444 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-16 11:18:31,444 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 61 transitions. [2020-10-16 11:18:31,444 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-10-16 11:18:31,445 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 11:18:31,445 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 11:18:31,445 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-16 11:18:31,445 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 11:18:31,445 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 11:18:31,446 INFO L82 PathProgramCache]: Analyzing trace with hash 1757733921, now seen corresponding path program 1 times [2020-10-16 11:18:31,446 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 11:18:31,446 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [465547617] [2020-10-16 11:18:31,446 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 11:18:31,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 11:18:31,519 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 11:18:31,519 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [465547617] [2020-10-16 11:18:31,520 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 11:18:31,520 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-16 11:18:31,520 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [293673501] [2020-10-16 11:18:31,520 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-16 11:18:31,521 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 11:18:31,521 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-16 11:18:31,521 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-10-16 11:18:31,521 INFO L87 Difference]: Start difference. First operand 38 states and 61 transitions. Second operand 6 states. [2020-10-16 11:18:31,569 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 11:18:31,569 INFO L93 Difference]: Finished difference Result 35 states and 53 transitions. [2020-10-16 11:18:31,569 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-16 11:18:31,570 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 14 [2020-10-16 11:18:31,570 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 11:18:31,570 INFO L225 Difference]: With dead ends: 35 [2020-10-16 11:18:31,570 INFO L226 Difference]: Without dead ends: 29 [2020-10-16 11:18:31,571 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2020-10-16 11:18:31,571 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2020-10-16 11:18:31,573 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 29. [2020-10-16 11:18:31,573 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29 states. [2020-10-16 11:18:31,573 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 43 transitions. [2020-10-16 11:18:31,574 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 43 transitions. Word has length 14 [2020-10-16 11:18:31,574 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 11:18:31,574 INFO L481 AbstractCegarLoop]: Abstraction has 29 states and 43 transitions. [2020-10-16 11:18:31,574 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-16 11:18:31,574 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 43 transitions. [2020-10-16 11:18:31,575 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-10-16 11:18:31,575 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 11:18:31,575 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 11:18:31,575 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-16 11:18:31,576 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 11:18:31,576 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 11:18:31,576 INFO L82 PathProgramCache]: Analyzing trace with hash 1250665313, now seen corresponding path program 1 times [2020-10-16 11:18:31,576 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 11:18:31,576 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [855808581] [2020-10-16 11:18:31,577 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 11:18:31,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 11:18:31,603 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 11:18:31,604 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [855808581] [2020-10-16 11:18:31,604 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 11:18:31,604 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-16 11:18:31,604 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1022108393] [2020-10-16 11:18:31,605 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-16 11:18:31,605 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 11:18:31,605 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-16 11:18:31,606 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-16 11:18:31,606 INFO L87 Difference]: Start difference. First operand 29 states and 43 transitions. Second operand 3 states. [2020-10-16 11:18:31,611 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 11:18:31,611 INFO L93 Difference]: Finished difference Result 28 states and 42 transitions. [2020-10-16 11:18:31,612 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-16 11:18:31,612 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 16 [2020-10-16 11:18:31,612 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 11:18:31,612 INFO L225 Difference]: With dead ends: 28 [2020-10-16 11:18:31,612 INFO L226 Difference]: Without dead ends: 0 [2020-10-16 11:18:31,613 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 [2020-10-16 11:18:31,613 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-16 11:18:31,613 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-16 11:18:31,613 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-16 11:18:31,614 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-16 11:18:31,614 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 16 [2020-10-16 11:18:31,614 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 11:18:31,614 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-16 11:18:31,614 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-16 11:18:31,614 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-16 11:18:31,614 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-16 11:18:31,615 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-16 11:18:31,618 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.10 11:18:31 BasicIcfg [2020-10-16 11:18:31,619 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-16 11:18:31,621 INFO L168 Benchmark]: Toolchain (without parser) took 4255.59 ms. Allocated memory was 147.8 MB in the beginning and 245.9 MB in the end (delta: 98.0 MB). Free memory was 102.4 MB in the beginning and 181.0 MB in the end (delta: -78.6 MB). Peak memory consumption was 19.5 MB. Max. memory is 7.1 GB. [2020-10-16 11:18:31,622 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 147.8 MB. Free memory was 122.4 MB in the beginning and 122.2 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. [2020-10-16 11:18:31,623 INFO L168 Benchmark]: CACSL2BoogieTranslator took 740.41 ms. Allocated memory was 147.8 MB in the beginning and 205.0 MB in the end (delta: 57.1 MB). Free memory was 102.2 MB in the beginning and 163.1 MB in the end (delta: -60.9 MB). Peak memory consumption was 24.3 MB. Max. memory is 7.1 GB. [2020-10-16 11:18:31,624 INFO L168 Benchmark]: Boogie Procedure Inliner took 52.90 ms. Allocated memory is still 205.0 MB. Free memory was 162.5 MB in the beginning and 160.5 MB in the end (delta: 1.9 MB). Peak memory consumption was 1.9 MB. Max. memory is 7.1 GB. [2020-10-16 11:18:31,625 INFO L168 Benchmark]: Boogie Preprocessor took 28.65 ms. Allocated memory is still 205.0 MB. Free memory was 160.5 MB in the beginning and 159.2 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. [2020-10-16 11:18:31,626 INFO L168 Benchmark]: RCFGBuilder took 418.81 ms. Allocated memory is still 205.0 MB. Free memory was 159.2 MB in the beginning and 137.1 MB in the end (delta: 22.1 MB). Peak memory consumption was 22.1 MB. Max. memory is 7.1 GB. [2020-10-16 11:18:31,627 INFO L168 Benchmark]: TraceAbstraction took 3009.46 ms. Allocated memory was 205.0 MB in the beginning and 245.9 MB in the end (delta: 40.9 MB). Free memory was 136.4 MB in the beginning and 181.0 MB in the end (delta: -44.6 MB). There was no memory consumed. Max. memory is 7.1 GB. [2020-10-16 11:18:31,631 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 147.8 MB. Free memory was 122.4 MB in the beginning and 122.2 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 740.41 ms. Allocated memory was 147.8 MB in the beginning and 205.0 MB in the end (delta: 57.1 MB). Free memory was 102.2 MB in the beginning and 163.1 MB in the end (delta: -60.9 MB). Peak memory consumption was 24.3 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 52.90 ms. Allocated memory is still 205.0 MB. Free memory was 162.5 MB in the beginning and 160.5 MB in the end (delta: 1.9 MB). Peak memory consumption was 1.9 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 28.65 ms. Allocated memory is still 205.0 MB. Free memory was 160.5 MB in the beginning and 159.2 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 418.81 ms. Allocated memory is still 205.0 MB. Free memory was 159.2 MB in the beginning and 137.1 MB in the end (delta: 22.1 MB). Peak memory consumption was 22.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 3009.46 ms. Allocated memory was 205.0 MB in the beginning and 245.9 MB in the end (delta: 40.9 MB). Free memory was 136.4 MB in the beginning and 181.0 MB in the end (delta: -44.6 MB). There was no memory consumed. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 761 VarBasedMoverChecksPositive, 33 VarBasedMoverChecksNegative, 7 SemBasedMoverChecksPositive, 26 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.2s, 42 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 1.5s, 76 PlacesBefore, 30 PlacesAfterwards, 68 TransitionsBefore, 20 TransitionsAfterwards, 1186 CoEnabledTransitionPairs, 6 FixpointIterations, 13 TrivialSequentialCompositions, 37 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 4 ConcurrentYvCompositions, 2 ChoiceCompositions, 56 TotalNumberOfCompositions, 2093 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, 67 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 2.8s, OverallIterations: 8, TraceHistogramMax: 1, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.6s, HoareTripleCheckerStatistics: 125 SDtfs, 102 SDslu, 132 SDs, 0 SdLazy, 102 SolverSat, 22 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 22 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=234occurred 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: 0.0s AutomataMinimizationTime, 8 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 95 NumberOfCodeBlocks, 95 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 87 ConstructedInterpolants, 0 QuantifiedInterpolants, 3039 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...