/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-PN-SemanticLbe-SemanticLooper.epf -i ../../../trunk/examples/svcomp/pthread-wmm/safe034_tso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-7bb8cbd [2020-10-16 05:11:22,129 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-16 05:11:22,132 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-16 05:11:22,174 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-16 05:11:22,174 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-16 05:11:22,180 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-16 05:11:22,182 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-16 05:11:22,187 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-16 05:11:22,192 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-16 05:11:22,193 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-16 05:11:22,194 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-16 05:11:22,195 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-16 05:11:22,195 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-16 05:11:22,196 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-16 05:11:22,197 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-16 05:11:22,198 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-16 05:11:22,198 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-16 05:11:22,199 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-16 05:11:22,201 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-16 05:11:22,202 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-16 05:11:22,204 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-16 05:11:22,205 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-16 05:11:22,206 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-16 05:11:22,206 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-16 05:11:22,209 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-16 05:11:22,209 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-16 05:11:22,209 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-16 05:11:22,210 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-16 05:11:22,210 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-16 05:11:22,211 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-16 05:11:22,211 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-16 05:11:22,212 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-16 05:11:22,213 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-16 05:11:22,213 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-16 05:11:22,214 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-16 05:11:22,215 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-16 05:11:22,215 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-16 05:11:22,215 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-16 05:11:22,216 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-16 05:11:22,217 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-16 05:11:22,217 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-16 05:11:22,218 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-PN-SemanticLbe-SemanticLooper.epf [2020-10-16 05:11:22,240 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-16 05:11:22,240 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-16 05:11:22,241 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-16 05:11:22,241 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-16 05:11:22,241 INFO L138 SettingsManager]: * Use SBE=true [2020-10-16 05:11:22,242 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-16 05:11:22,242 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-16 05:11:22,242 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-16 05:11:22,242 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-16 05:11:22,242 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-16 05:11:22,243 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-16 05:11:22,243 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-16 05:11:22,243 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-16 05:11:22,243 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-16 05:11:22,243 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-16 05:11:22,244 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-16 05:11:22,244 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-16 05:11:22,244 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-16 05:11:22,244 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-16 05:11:22,244 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-16 05:11:22,245 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-16 05:11:22,245 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-16 05:11:22,245 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-16 05:11:22,245 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-16 05:11:22,245 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-16 05:11:22,245 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-16 05:11:22,246 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-16 05:11:22,246 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2020-10-16 05:11:22,246 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-10-16 05:11:22,531 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-16 05:11:22,542 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-16 05:11:22,546 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-16 05:11:22,547 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-16 05:11:22,547 INFO L275 PluginConnector]: CDTParser initialized [2020-10-16 05:11:22,548 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe034_tso.opt.i [2020-10-16 05:11:22,607 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e7a94f226/0c15e33b427d42ba995a38e27cdcddfd/FLAG62d80e405 [2020-10-16 05:11:23,103 INFO L306 CDTParser]: Found 1 translation units. [2020-10-16 05:11:23,104 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe034_tso.opt.i [2020-10-16 05:11:23,123 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e7a94f226/0c15e33b427d42ba995a38e27cdcddfd/FLAG62d80e405 [2020-10-16 05:11:23,379 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e7a94f226/0c15e33b427d42ba995a38e27cdcddfd [2020-10-16 05:11:23,388 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-16 05:11:23,390 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-10-16 05:11:23,391 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-16 05:11:23,391 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-16 05:11:23,396 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-16 05:11:23,397 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 05:11:23" (1/1) ... [2020-10-16 05:11:23,400 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5c17228a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:11:23, skipping insertion in model container [2020-10-16 05:11:23,401 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 05:11:23" (1/1) ... [2020-10-16 05:11:23,409 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-16 05:11:23,471 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-16 05:11:23,987 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-16 05:11:24,003 INFO L203 MainTranslator]: Completed pre-run [2020-10-16 05:11:24,063 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-16 05:11:24,141 INFO L208 MainTranslator]: Completed translation [2020-10-16 05:11:24,141 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:11:24 WrapperNode [2020-10-16 05:11:24,142 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-16 05:11:24,143 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-16 05:11:24,143 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-16 05:11:24,143 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-16 05:11:24,152 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:11:24" (1/1) ... [2020-10-16 05:11:24,168 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:11:24" (1/1) ... [2020-10-16 05:11:24,189 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-16 05:11:24,189 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-16 05:11:24,190 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-16 05:11:24,190 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-16 05:11:24,197 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:11:24" (1/1) ... [2020-10-16 05:11:24,197 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:11:24" (1/1) ... [2020-10-16 05:11:24,200 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:11:24" (1/1) ... [2020-10-16 05:11:24,201 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:11:24" (1/1) ... [2020-10-16 05:11:24,207 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:11:24" (1/1) ... [2020-10-16 05:11:24,210 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:11:24" (1/1) ... [2020-10-16 05:11:24,212 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:11:24" (1/1) ... [2020-10-16 05:11:24,215 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-16 05:11:24,216 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-16 05:11:24,216 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-16 05:11:24,216 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-16 05:11:24,217 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:11:24" (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 [2020-10-16 05:11:24,281 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-16 05:11:24,281 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-10-16 05:11:24,281 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-16 05:11:24,281 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-16 05:11:24,281 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-10-16 05:11:24,281 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-10-16 05:11:24,282 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-10-16 05:11:24,282 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-10-16 05:11:24,282 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-10-16 05:11:24,282 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-10-16 05:11:24,282 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-10-16 05:11:24,282 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-16 05:11:24,283 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-16 05:11:24,284 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 05:11:24,591 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-16 05:11:24,591 INFO L298 CfgBuilder]: Removed 8 assume(true) statements. [2020-10-16 05:11:24,593 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 05:11:24 BoogieIcfgContainer [2020-10-16 05:11:24,593 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-16 05:11:24,595 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-16 05:11:24,595 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-16 05:11:24,599 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-16 05:11:24,599 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.10 05:11:23" (1/3) ... [2020-10-16 05:11:24,600 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@744cd032 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 05:11:24, skipping insertion in model container [2020-10-16 05:11:24,601 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:11:24" (2/3) ... [2020-10-16 05:11:24,601 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@744cd032 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 05:11:24, skipping insertion in model container [2020-10-16 05:11:24,602 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 05:11:24" (3/3) ... [2020-10-16 05:11:24,603 INFO L111 eAbstractionObserver]: Analyzing ICFG safe034_tso.opt.i [2020-10-16 05:11:24,616 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-16 05:11:24,624 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-16 05:11:24,625 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-10-16 05:11:24,659 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:11:24,660 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:11:24,660 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:11:24,660 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:11:24,661 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:11:24,661 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:11:24,662 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:11:24,662 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:11:24,663 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:11:24,663 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:11:24,664 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:11:24,664 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:11:24,664 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:11:24,665 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:11:24,665 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:11:24,665 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:11:24,666 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:11:24,666 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:11:24,669 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:11:24,670 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:11:24,670 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:11:24,670 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:11:24,675 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:11:24,676 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:11:24,676 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:11:24,676 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:11:24,679 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:11:24,679 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:11:24,680 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:11:24,680 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:11:24,698 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-10-16 05:11:24,725 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-16 05:11:24,725 INFO L378 AbstractCegarLoop]: Hoare is false [2020-10-16 05:11:24,725 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-16 05:11:24,725 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-16 05:11:24,726 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-16 05:11:24,726 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-16 05:11:24,726 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-16 05:11:24,726 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-16 05:11:24,741 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 78 places, 70 transitions, 155 flow [2020-10-16 05:11:24,806 INFO L129 PetriNetUnfolder]: 2/67 cut-off events. [2020-10-16 05:11:24,811 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-10-16 05:11:24,820 INFO L80 FinitePrefix]: Finished finitePrefix Result has 77 conditions, 67 events. 2/67 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. 0/64 useless extension candidates. Maximal degree in co-relation 55. Up to 2 conditions per place. [2020-10-16 05:11:24,820 INFO L82 GeneralOperation]: Start removeDead. Operand has 78 places, 70 transitions, 155 flow [2020-10-16 05:11:24,828 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 65 places, 56 transitions, 121 flow [2020-10-16 05:11:24,830 INFO L129 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2020-10-16 05:11:24,833 INFO L144 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 65 places, 56 transitions, 121 flow [2020-10-16 05:11:24,835 INFO L111 LiptonReduction]: Starting Lipton reduction on Petri net that has 65 places, 56 transitions, 121 flow [2020-10-16 05:11:24,836 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 65 places, 56 transitions, 121 flow [2020-10-16 05:11:24,855 INFO L129 PetriNetUnfolder]: 1/56 cut-off events. [2020-10-16 05:11:24,856 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-10-16 05:11:24,856 INFO L80 FinitePrefix]: Finished finitePrefix Result has 66 conditions, 56 events. 1/56 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 46 event pairs, 0 based on Foata normal form. 0/55 useless extension candidates. Maximal degree in co-relation 44. Up to 2 conditions per place. [2020-10-16 05:11:24,858 INFO L117 LiptonReduction]: Number of co-enabled transitions 864 [2020-10-16 05:11:26,093 INFO L132 LiptonReduction]: Checked pairs total: 1810 [2020-10-16 05:11:26,094 INFO L134 LiptonReduction]: Total number of compositions: 43 [2020-10-16 05:11:26,097 INFO L182 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 1269 [2020-10-16 05:11:26,104 INFO L129 PetriNetUnfolder]: 0/12 cut-off events. [2020-10-16 05:11:26,105 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-10-16 05:11:26,105 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-16 05:11:26,106 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2020-10-16 05:11:26,106 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 05:11:26,112 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 05:11:26,112 INFO L82 PathProgramCache]: Analyzing trace with hash 1532819962, now seen corresponding path program 1 times [2020-10-16 05:11:26,122 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 05:11:26,123 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1826950445] [2020-10-16 05:11:26,123 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 05:11:26,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 05:11:26,318 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 05:11:26,319 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1826950445] [2020-10-16 05:11:26,319 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 05:11:26,320 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-10-16 05:11:26,320 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1323598584] [2020-10-16 05:11:26,330 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-10-16 05:11:26,330 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 05:11:26,341 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-10-16 05:11:26,343 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-10-16 05:11:26,345 INFO L507 CegarLoopForPetriNet]: Number of universal loopers: 107 out of 113 [2020-10-16 05:11:26,346 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 27 places, 18 transitions, 45 flow. Second operand 2 states. [2020-10-16 05:11:26,347 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-16 05:11:26,347 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 107 of 113 [2020-10-16 05:11:26,348 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-16 05:11:26,358 INFO L129 PetriNetUnfolder]: 0/17 cut-off events. [2020-10-16 05:11:26,358 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-10-16 05:11:26,359 INFO L80 FinitePrefix]: Finished finitePrefix Result has 28 conditions, 17 events. 0/17 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 15 event pairs, 0 based on Foata normal form. 1/18 useless extension candidates. Maximal degree in co-relation 0. Up to 1 conditions per place. [2020-10-16 05:11:26,360 INFO L132 encePairwiseOnDemand]: 112/113 looper letters, 0 selfloop transitions, 0 changer transitions 0/17 dead transitions. [2020-10-16 05:11:26,360 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 28 places, 17 transitions, 43 flow [2020-10-16 05:11:26,360 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-10-16 05:11:26,363 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2020-10-16 05:11:26,372 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 215 transitions. [2020-10-16 05:11:26,375 INFO L552 CegarLoopForPetriNet]: DFA transition density 0.9513274336283186 [2020-10-16 05:11:26,376 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 215 transitions. [2020-10-16 05:11:26,376 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 215 transitions. [2020-10-16 05:11:26,378 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-16 05:11:26,381 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 215 transitions. [2020-10-16 05:11:26,384 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 3 states. [2020-10-16 05:11:26,389 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 3 states. [2020-10-16 05:11:26,390 INFO L81 ComplementDD]: Finished complementDD. Result 3 states. [2020-10-16 05:11:26,392 INFO L185 Difference]: Start difference. First operand has 27 places, 18 transitions, 45 flow. Second operand 2 states and 215 transitions. [2020-10-16 05:11:26,393 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 28 places, 17 transitions, 43 flow [2020-10-16 05:11:26,396 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 25 places, 17 transitions, 40 flow, removed 0 selfloop flow, removed 3 redundant places. [2020-10-16 05:11:26,397 INFO L241 Difference]: Finished difference. Result has 25 places, 17 transitions, 40 flow [2020-10-16 05:11:26,400 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=113, PETRI_DIFFERENCE_MINUEND_FLOW=40, PETRI_DIFFERENCE_MINUEND_PLACES=24, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=17, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=17, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=40, PETRI_PLACES=25, PETRI_TRANSITIONS=17} [2020-10-16 05:11:26,401 INFO L342 CegarLoopForPetriNet]: 27 programPoint places, -2 predicate places. [2020-10-16 05:11:26,401 INFO L481 AbstractCegarLoop]: Abstraction has has 25 places, 17 transitions, 40 flow [2020-10-16 05:11:26,401 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-10-16 05:11:26,402 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-16 05:11:26,402 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 05:11:26,402 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-16 05:11:26,402 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 05:11:26,403 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 05:11:26,403 INFO L82 PathProgramCache]: Analyzing trace with hash 272778124, now seen corresponding path program 1 times [2020-10-16 05:11:26,403 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 05:11:26,404 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [153503511] [2020-10-16 05:11:26,404 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 05:11:26,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 05:11:26,505 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 05:11:26,505 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [153503511] [2020-10-16 05:11:26,506 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 05:11:26,506 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-10-16 05:11:26,506 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [37481246] [2020-10-16 05:11:26,508 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-16 05:11:26,508 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 05:11:26,508 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-16 05:11:26,509 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-16 05:11:26,510 INFO L507 CegarLoopForPetriNet]: Number of universal loopers: 96 out of 113 [2020-10-16 05:11:26,511 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 25 places, 17 transitions, 40 flow. Second operand 3 states. [2020-10-16 05:11:26,511 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-16 05:11:26,511 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 96 of 113 [2020-10-16 05:11:26,511 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-16 05:11:26,531 INFO L129 PetriNetUnfolder]: 3/25 cut-off events. [2020-10-16 05:11:26,531 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-10-16 05:11:26,531 INFO L80 FinitePrefix]: Finished finitePrefix Result has 44 conditions, 25 events. 3/25 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 32 event pairs, 1 based on Foata normal form. 1/26 useless extension candidates. Maximal degree in co-relation 41. Up to 10 conditions per place. [2020-10-16 05:11:26,532 INFO L132 encePairwiseOnDemand]: 109/113 looper letters, 3 selfloop transitions, 3 changer transitions 0/19 dead transitions. [2020-10-16 05:11:26,533 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 27 places, 19 transitions, 56 flow [2020-10-16 05:11:26,533 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-16 05:11:26,533 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-10-16 05:11:26,535 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 295 transitions. [2020-10-16 05:11:26,536 INFO L552 CegarLoopForPetriNet]: DFA transition density 0.8702064896755162 [2020-10-16 05:11:26,537 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 295 transitions. [2020-10-16 05:11:26,537 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 295 transitions. [2020-10-16 05:11:26,537 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-16 05:11:26,538 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 295 transitions. [2020-10-16 05:11:26,541 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 4 states. [2020-10-16 05:11:26,543 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 4 states. [2020-10-16 05:11:26,543 INFO L81 ComplementDD]: Finished complementDD. Result 4 states. [2020-10-16 05:11:26,543 INFO L185 Difference]: Start difference. First operand has 25 places, 17 transitions, 40 flow. Second operand 3 states and 295 transitions. [2020-10-16 05:11:26,544 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 27 places, 19 transitions, 56 flow [2020-10-16 05:11:26,547 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 27 places, 19 transitions, 56 flow, removed 0 selfloop flow, removed 0 redundant places. [2020-10-16 05:11:26,549 INFO L241 Difference]: Finished difference. Result has 28 places, 19 transitions, 59 flow [2020-10-16 05:11:26,549 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=113, PETRI_DIFFERENCE_MINUEND_FLOW=40, PETRI_DIFFERENCE_MINUEND_PLACES=25, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=17, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=14, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=59, PETRI_PLACES=28, PETRI_TRANSITIONS=19} [2020-10-16 05:11:26,550 INFO L342 CegarLoopForPetriNet]: 27 programPoint places, 1 predicate places. [2020-10-16 05:11:26,550 INFO L481 AbstractCegarLoop]: Abstraction has has 28 places, 19 transitions, 59 flow [2020-10-16 05:11:26,550 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-16 05:11:26,552 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-16 05:11:26,552 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 05:11:26,552 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-16 05:11:26,553 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 05:11:26,553 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 05:11:26,553 INFO L82 PathProgramCache]: Analyzing trace with hash -133813314, now seen corresponding path program 1 times [2020-10-16 05:11:26,553 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 05:11:26,554 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1111579705] [2020-10-16 05:11:26,554 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 05:11:26,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 05:11:26,659 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 05:11:26,661 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1111579705] [2020-10-16 05:11:26,662 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 05:11:26,662 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-16 05:11:26,662 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1407012151] [2020-10-16 05:11:26,662 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-16 05:11:26,663 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 05:11:26,663 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-16 05:11:26,663 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-16 05:11:26,667 INFO L507 CegarLoopForPetriNet]: Number of universal loopers: 84 out of 113 [2020-10-16 05:11:26,668 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 28 places, 19 transitions, 59 flow. Second operand 4 states. [2020-10-16 05:11:26,668 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-16 05:11:26,668 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 84 of 113 [2020-10-16 05:11:26,668 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-16 05:11:26,744 INFO L129 PetriNetUnfolder]: 42/96 cut-off events. [2020-10-16 05:11:26,745 INFO L130 PetriNetUnfolder]: For 15/20 co-relation queries the response was YES. [2020-10-16 05:11:26,746 INFO L80 FinitePrefix]: Finished finitePrefix Result has 210 conditions, 96 events. 42/96 cut-off events. For 15/20 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 366 event pairs, 18 based on Foata normal form. 16/105 useless extension candidates. Maximal degree in co-relation 205. Up to 61 conditions per place. [2020-10-16 05:11:26,747 INFO L132 encePairwiseOnDemand]: 107/113 looper letters, 7 selfloop transitions, 7 changer transitions 2/29 dead transitions. [2020-10-16 05:11:26,748 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 32 places, 29 transitions, 111 flow [2020-10-16 05:11:26,748 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-16 05:11:26,748 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2020-10-16 05:11:26,751 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 438 transitions. [2020-10-16 05:11:26,752 INFO L552 CegarLoopForPetriNet]: DFA transition density 0.7752212389380531 [2020-10-16 05:11:26,752 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 438 transitions. [2020-10-16 05:11:26,752 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 438 transitions. [2020-10-16 05:11:26,753 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-16 05:11:26,753 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 438 transitions. [2020-10-16 05:11:26,755 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 6 states. [2020-10-16 05:11:26,757 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 6 states. [2020-10-16 05:11:26,757 INFO L81 ComplementDD]: Finished complementDD. Result 6 states. [2020-10-16 05:11:26,757 INFO L185 Difference]: Start difference. First operand has 28 places, 19 transitions, 59 flow. Second operand 5 states and 438 transitions. [2020-10-16 05:11:26,758 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 32 places, 29 transitions, 111 flow [2020-10-16 05:11:26,759 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 31 places, 29 transitions, 108 flow, removed 0 selfloop flow, removed 1 redundant places. [2020-10-16 05:11:26,760 INFO L241 Difference]: Finished difference. Result has 34 places, 25 transitions, 110 flow [2020-10-16 05:11:26,760 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=113, PETRI_DIFFERENCE_MINUEND_FLOW=56, PETRI_DIFFERENCE_MINUEND_PLACES=27, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=19, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=14, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=110, PETRI_PLACES=34, PETRI_TRANSITIONS=25} [2020-10-16 05:11:26,760 INFO L342 CegarLoopForPetriNet]: 27 programPoint places, 7 predicate places. [2020-10-16 05:11:26,760 INFO L481 AbstractCegarLoop]: Abstraction has has 34 places, 25 transitions, 110 flow [2020-10-16 05:11:26,761 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-16 05:11:26,761 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-16 05:11:26,761 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 05:11:26,761 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-16 05:11:26,761 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 05:11:26,762 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 05:11:26,762 INFO L82 PathProgramCache]: Analyzing trace with hash 1303269589, now seen corresponding path program 1 times [2020-10-16 05:11:26,762 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 05:11:26,763 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1110796223] [2020-10-16 05:11:26,763 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 05:11:26,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 05:11:26,891 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 05:11:26,891 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1110796223] [2020-10-16 05:11:26,891 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 05:11:26,892 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-16 05:11:26,892 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [425380840] [2020-10-16 05:11:26,892 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-16 05:11:26,892 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 05:11:26,893 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-16 05:11:26,893 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-16 05:11:26,894 INFO L507 CegarLoopForPetriNet]: Number of universal loopers: 84 out of 113 [2020-10-16 05:11:26,895 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 34 places, 25 transitions, 110 flow. Second operand 5 states. [2020-10-16 05:11:26,895 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-16 05:11:26,895 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 84 of 113 [2020-10-16 05:11:26,895 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-16 05:11:26,979 INFO L129 PetriNetUnfolder]: 25/76 cut-off events. [2020-10-16 05:11:26,980 INFO L130 PetriNetUnfolder]: For 115/148 co-relation queries the response was YES. [2020-10-16 05:11:26,981 INFO L80 FinitePrefix]: Finished finitePrefix Result has 276 conditions, 76 events. 25/76 cut-off events. For 115/148 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 266 event pairs, 3 based on Foata normal form. 31/103 useless extension candidates. Maximal degree in co-relation 268. Up to 52 conditions per place. [2020-10-16 05:11:26,982 INFO L132 encePairwiseOnDemand]: 107/113 looper letters, 5 selfloop transitions, 13 changer transitions 4/35 dead transitions. [2020-10-16 05:11:26,982 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 40 places, 35 transitions, 212 flow [2020-10-16 05:11:26,982 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-16 05:11:26,983 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2020-10-16 05:11:26,984 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 612 transitions. [2020-10-16 05:11:26,985 INFO L552 CegarLoopForPetriNet]: DFA transition density 0.7737041719342604 [2020-10-16 05:11:26,985 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 612 transitions. [2020-10-16 05:11:26,985 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 612 transitions. [2020-10-16 05:11:26,986 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-16 05:11:26,986 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 612 transitions. [2020-10-16 05:11:26,988 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 8 states. [2020-10-16 05:11:26,990 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 8 states. [2020-10-16 05:11:26,990 INFO L81 ComplementDD]: Finished complementDD. Result 8 states. [2020-10-16 05:11:26,990 INFO L185 Difference]: Start difference. First operand has 34 places, 25 transitions, 110 flow. Second operand 7 states and 612 transitions. [2020-10-16 05:11:26,990 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 40 places, 35 transitions, 212 flow [2020-10-16 05:11:26,994 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 39 places, 35 transitions, 208 flow, removed 0 selfloop flow, removed 1 redundant places. [2020-10-16 05:11:26,996 INFO L241 Difference]: Finished difference. Result has 42 places, 31 transitions, 194 flow [2020-10-16 05:11:26,996 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=113, PETRI_DIFFERENCE_MINUEND_FLOW=106, PETRI_DIFFERENCE_MINUEND_PLACES=33, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=25, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=14, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=194, PETRI_PLACES=42, PETRI_TRANSITIONS=31} [2020-10-16 05:11:26,996 INFO L342 CegarLoopForPetriNet]: 27 programPoint places, 15 predicate places. [2020-10-16 05:11:26,996 INFO L481 AbstractCegarLoop]: Abstraction has has 42 places, 31 transitions, 194 flow [2020-10-16 05:11:26,997 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-16 05:11:26,997 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-16 05:11:26,997 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 05:11:26,997 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-16 05:11:26,997 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 05:11:26,998 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 05:11:26,998 INFO L82 PathProgramCache]: Analyzing trace with hash -626420579, now seen corresponding path program 1 times [2020-10-16 05:11:26,998 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 05:11:26,999 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1046517491] [2020-10-16 05:11:26,999 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 05:11:27,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 05:11:27,118 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 05:11:27,118 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1046517491] [2020-10-16 05:11:27,118 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 05:11:27,118 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-16 05:11:27,119 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [220781875] [2020-10-16 05:11:27,119 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-16 05:11:27,119 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 05:11:27,120 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-16 05:11:27,120 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-10-16 05:11:27,122 INFO L507 CegarLoopForPetriNet]: Number of universal loopers: 84 out of 113 [2020-10-16 05:11:27,123 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 42 places, 31 transitions, 194 flow. Second operand 6 states. [2020-10-16 05:11:27,123 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-16 05:11:27,123 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 84 of 113 [2020-10-16 05:11:27,123 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-16 05:11:27,211 INFO L129 PetriNetUnfolder]: 13/58 cut-off events. [2020-10-16 05:11:27,211 INFO L130 PetriNetUnfolder]: For 238/274 co-relation queries the response was YES. [2020-10-16 05:11:27,212 INFO L80 FinitePrefix]: Finished finitePrefix Result has 274 conditions, 58 events. 13/58 cut-off events. For 238/274 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 194 event pairs, 0 based on Foata normal form. 29/84 useless extension candidates. Maximal degree in co-relation 263. Up to 41 conditions per place. [2020-10-16 05:11:27,213 INFO L132 encePairwiseOnDemand]: 107/113 looper letters, 2 selfloop transitions, 17 changer transitions 3/35 dead transitions. [2020-10-16 05:11:27,213 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 50 places, 35 transitions, 270 flow [2020-10-16 05:11:27,213 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-16 05:11:27,214 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2020-10-16 05:11:27,216 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 780 transitions. [2020-10-16 05:11:27,216 INFO L552 CegarLoopForPetriNet]: DFA transition density 0.7669616519174042 [2020-10-16 05:11:27,217 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 780 transitions. [2020-10-16 05:11:27,217 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 780 transitions. [2020-10-16 05:11:27,218 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-16 05:11:27,218 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 780 transitions. [2020-10-16 05:11:27,220 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 10 states. [2020-10-16 05:11:27,222 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 10 states. [2020-10-16 05:11:27,222 INFO L81 ComplementDD]: Finished complementDD. Result 10 states. [2020-10-16 05:11:27,222 INFO L185 Difference]: Start difference. First operand has 42 places, 31 transitions, 194 flow. Second operand 9 states and 780 transitions. [2020-10-16 05:11:27,222 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 50 places, 35 transitions, 270 flow [2020-10-16 05:11:27,225 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 48 places, 35 transitions, 240 flow, removed 11 selfloop flow, removed 2 redundant places. [2020-10-16 05:11:27,227 INFO L241 Difference]: Finished difference. Result has 51 places, 32 transitions, 220 flow [2020-10-16 05:11:27,227 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=113, PETRI_DIFFERENCE_MINUEND_FLOW=164, PETRI_DIFFERENCE_MINUEND_PLACES=40, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=31, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=16, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=14, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=220, PETRI_PLACES=51, PETRI_TRANSITIONS=32} [2020-10-16 05:11:27,227 INFO L342 CegarLoopForPetriNet]: 27 programPoint places, 24 predicate places. [2020-10-16 05:11:27,227 INFO L481 AbstractCegarLoop]: Abstraction has has 51 places, 32 transitions, 220 flow [2020-10-16 05:11:27,227 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-16 05:11:27,228 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-16 05:11:27,228 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 05:11:27,228 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-16 05:11:27,228 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 05:11:27,229 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 05:11:27,229 INFO L82 PathProgramCache]: Analyzing trace with hash -72143901, now seen corresponding path program 1 times [2020-10-16 05:11:27,229 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 05:11:27,229 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1874048501] [2020-10-16 05:11:27,229 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 05:11:27,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 05:11:27,262 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 05:11:27,262 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1874048501] [2020-10-16 05:11:27,262 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 05:11:27,263 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-16 05:11:27,263 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1418051449] [2020-10-16 05:11:27,263 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-16 05:11:27,263 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 05:11:27,264 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-16 05:11:27,264 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-16 05:11:27,265 INFO L507 CegarLoopForPetriNet]: Number of universal loopers: 96 out of 113 [2020-10-16 05:11:27,265 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 51 places, 32 transitions, 220 flow. Second operand 3 states. [2020-10-16 05:11:27,266 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-16 05:11:27,266 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 96 of 113 [2020-10-16 05:11:27,266 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-16 05:11:27,285 INFO L129 PetriNetUnfolder]: 14/68 cut-off events. [2020-10-16 05:11:27,285 INFO L130 PetriNetUnfolder]: For 249/259 co-relation queries the response was YES. [2020-10-16 05:11:27,286 INFO L80 FinitePrefix]: Finished finitePrefix Result has 288 conditions, 68 events. 14/68 cut-off events. For 249/259 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 269 event pairs, 0 based on Foata normal form. 5/69 useless extension candidates. Maximal degree in co-relation 273. Up to 28 conditions per place. [2020-10-16 05:11:27,286 INFO L132 encePairwiseOnDemand]: 110/113 looper letters, 2 selfloop transitions, 2 changer transitions 9/32 dead transitions. [2020-10-16 05:11:27,287 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 52 places, 32 transitions, 232 flow [2020-10-16 05:11:27,287 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-16 05:11:27,287 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-10-16 05:11:27,288 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 294 transitions. [2020-10-16 05:11:27,288 INFO L552 CegarLoopForPetriNet]: DFA transition density 0.8672566371681416 [2020-10-16 05:11:27,289 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 294 transitions. [2020-10-16 05:11:27,289 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 294 transitions. [2020-10-16 05:11:27,289 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-16 05:11:27,289 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 294 transitions. [2020-10-16 05:11:27,290 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 4 states. [2020-10-16 05:11:27,291 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 4 states. [2020-10-16 05:11:27,291 INFO L81 ComplementDD]: Finished complementDD. Result 4 states. [2020-10-16 05:11:27,291 INFO L185 Difference]: Start difference. First operand has 51 places, 32 transitions, 220 flow. Second operand 3 states and 294 transitions. [2020-10-16 05:11:27,291 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 52 places, 32 transitions, 232 flow [2020-10-16 05:11:27,295 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 44 places, 32 transitions, 174 flow, removed 14 selfloop flow, removed 8 redundant places. [2020-10-16 05:11:27,296 INFO L241 Difference]: Finished difference. Result has 45 places, 23 transitions, 114 flow [2020-10-16 05:11:27,296 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=113, PETRI_DIFFERENCE_MINUEND_FLOW=162, PETRI_DIFFERENCE_MINUEND_PLACES=42, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=32, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=30, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=114, PETRI_PLACES=45, PETRI_TRANSITIONS=23} [2020-10-16 05:11:27,296 INFO L342 CegarLoopForPetriNet]: 27 programPoint places, 18 predicate places. [2020-10-16 05:11:27,296 INFO L481 AbstractCegarLoop]: Abstraction has has 45 places, 23 transitions, 114 flow [2020-10-16 05:11:27,297 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-16 05:11:27,297 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-16 05:11:27,297 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 05:11:27,297 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-16 05:11:27,297 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 05:11:27,297 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 05:11:27,298 INFO L82 PathProgramCache]: Analyzing trace with hash 1779065763, now seen corresponding path program 2 times [2020-10-16 05:11:27,298 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 05:11:27,298 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [555183596] [2020-10-16 05:11:27,298 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 05:11:27,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 05:11:27,329 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 05:11:27,330 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [555183596] [2020-10-16 05:11:27,330 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 05:11:27,330 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-16 05:11:27,330 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1493647522] [2020-10-16 05:11:27,331 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-16 05:11:27,331 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 05:11:27,331 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-16 05:11:27,332 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-16 05:11:27,333 INFO L507 CegarLoopForPetriNet]: Number of universal loopers: 92 out of 113 [2020-10-16 05:11:27,333 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 45 places, 23 transitions, 114 flow. Second operand 4 states. [2020-10-16 05:11:27,334 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-16 05:11:27,334 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 92 of 113 [2020-10-16 05:11:27,334 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-16 05:11:27,353 INFO L129 PetriNetUnfolder]: 10/41 cut-off events. [2020-10-16 05:11:27,353 INFO L130 PetriNetUnfolder]: For 68/68 co-relation queries the response was YES. [2020-10-16 05:11:27,354 INFO L80 FinitePrefix]: Finished finitePrefix Result has 125 conditions, 41 events. 10/41 cut-off events. For 68/68 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 88 event pairs, 0 based on Foata normal form. 1/40 useless extension candidates. Maximal degree in co-relation 112. Up to 15 conditions per place. [2020-10-16 05:11:27,354 INFO L132 encePairwiseOnDemand]: 110/113 looper letters, 3 selfloop transitions, 1 changer transitions 1/24 dead transitions. [2020-10-16 05:11:27,354 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 43 places, 24 transitions, 126 flow [2020-10-16 05:11:27,355 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-16 05:11:27,355 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-10-16 05:11:27,356 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 374 transitions. [2020-10-16 05:11:27,357 INFO L552 CegarLoopForPetriNet]: DFA transition density 0.827433628318584 [2020-10-16 05:11:27,357 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 374 transitions. [2020-10-16 05:11:27,357 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 374 transitions. [2020-10-16 05:11:27,357 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-16 05:11:27,358 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 374 transitions. [2020-10-16 05:11:27,359 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 5 states. [2020-10-16 05:11:27,360 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 5 states. [2020-10-16 05:11:27,360 INFO L81 ComplementDD]: Finished complementDD. Result 5 states. [2020-10-16 05:11:27,360 INFO L185 Difference]: Start difference. First operand has 45 places, 23 transitions, 114 flow. Second operand 4 states and 374 transitions. [2020-10-16 05:11:27,360 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 43 places, 24 transitions, 126 flow [2020-10-16 05:11:27,361 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 34 places, 24 transitions, 102 flow, removed 7 selfloop flow, removed 9 redundant places. [2020-10-16 05:11:27,362 INFO L241 Difference]: Finished difference. Result has 36 places, 23 transitions, 97 flow [2020-10-16 05:11:27,362 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=113, PETRI_DIFFERENCE_MINUEND_FLOW=90, PETRI_DIFFERENCE_MINUEND_PLACES=31, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=23, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=22, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=97, PETRI_PLACES=36, PETRI_TRANSITIONS=23} [2020-10-16 05:11:27,363 INFO L342 CegarLoopForPetriNet]: 27 programPoint places, 9 predicate places. [2020-10-16 05:11:27,363 INFO L481 AbstractCegarLoop]: Abstraction has has 36 places, 23 transitions, 97 flow [2020-10-16 05:11:27,363 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-16 05:11:27,363 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-16 05:11:27,363 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 05:11:27,363 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-16 05:11:27,363 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 05:11:27,364 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 05:11:27,364 INFO L82 PathProgramCache]: Analyzing trace with hash -669841867, now seen corresponding path program 3 times [2020-10-16 05:11:27,364 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 05:11:27,364 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1280860210] [2020-10-16 05:11:27,365 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 05:11:27,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 05:11:27,403 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 05:11:27,404 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1280860210] [2020-10-16 05:11:27,404 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 05:11:27,404 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-16 05:11:27,405 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1685870330] [2020-10-16 05:11:27,406 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-16 05:11:27,406 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 05:11:27,406 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-16 05:11:27,406 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-16 05:11:27,408 INFO L507 CegarLoopForPetriNet]: Number of universal loopers: 92 out of 113 [2020-10-16 05:11:27,408 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 36 places, 23 transitions, 97 flow. Second operand 4 states. [2020-10-16 05:11:27,408 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-16 05:11:27,408 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 92 of 113 [2020-10-16 05:11:27,409 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-16 05:11:27,433 INFO L129 PetriNetUnfolder]: 7/38 cut-off events. [2020-10-16 05:11:27,434 INFO L130 PetriNetUnfolder]: For 22/22 co-relation queries the response was YES. [2020-10-16 05:11:27,434 INFO L80 FinitePrefix]: Finished finitePrefix Result has 102 conditions, 38 events. 7/38 cut-off events. For 22/22 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 78 event pairs, 0 based on Foata normal form. 1/37 useless extension candidates. Maximal degree in co-relation 93. Up to 12 conditions per place. [2020-10-16 05:11:27,434 INFO L132 encePairwiseOnDemand]: 110/113 looper letters, 0 selfloop transitions, 0 changer transitions 23/23 dead transitions. [2020-10-16 05:11:27,435 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 37 places, 23 transitions, 103 flow [2020-10-16 05:11:27,435 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-16 05:11:27,436 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-10-16 05:11:27,437 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 373 transitions. [2020-10-16 05:11:27,437 INFO L552 CegarLoopForPetriNet]: DFA transition density 0.8252212389380531 [2020-10-16 05:11:27,438 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 373 transitions. [2020-10-16 05:11:27,438 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 373 transitions. [2020-10-16 05:11:27,438 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-16 05:11:27,439 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 373 transitions. [2020-10-16 05:11:27,440 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 5 states. [2020-10-16 05:11:27,441 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 5 states. [2020-10-16 05:11:27,441 INFO L81 ComplementDD]: Finished complementDD. Result 5 states. [2020-10-16 05:11:27,441 INFO L185 Difference]: Start difference. First operand has 36 places, 23 transitions, 97 flow. Second operand 4 states and 373 transitions. [2020-10-16 05:11:27,441 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 37 places, 23 transitions, 103 flow [2020-10-16 05:11:27,442 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 36 places, 23 transitions, 102 flow, removed 0 selfloop flow, removed 1 redundant places. [2020-10-16 05:11:27,442 INFO L241 Difference]: Finished difference. Result has 36 places, 0 transitions, 0 flow [2020-10-16 05:11:27,442 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=113, PETRI_DIFFERENCE_MINUEND_FLOW=92, PETRI_DIFFERENCE_MINUEND_PLACES=33, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=22, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=22, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=0, PETRI_PLACES=36, PETRI_TRANSITIONS=0} [2020-10-16 05:11:27,443 INFO L342 CegarLoopForPetriNet]: 27 programPoint places, 9 predicate places. [2020-10-16 05:11:27,443 INFO L481 AbstractCegarLoop]: Abstraction has has 36 places, 0 transitions, 0 flow [2020-10-16 05:11:27,443 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-16 05:11:27,443 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-16 05:11:27,447 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.10 05:11:27 BasicIcfg [2020-10-16 05:11:27,447 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-16 05:11:27,452 INFO L168 Benchmark]: Toolchain (without parser) took 4059.54 ms. Allocated memory was 251.1 MB in the beginning and 369.1 MB in the end (delta: 118.0 MB). Free memory was 206.5 MB in the beginning and 251.3 MB in the end (delta: -44.8 MB). Peak memory consumption was 73.1 MB. Max. memory is 14.2 GB. [2020-10-16 05:11:27,453 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 251.1 MB. Free memory is still 227.5 MB. There was no memory consumed. Max. memory is 14.2 GB. [2020-10-16 05:11:27,460 INFO L168 Benchmark]: CACSL2BoogieTranslator took 751.16 ms. Allocated memory was 251.1 MB in the beginning and 313.0 MB in the end (delta: 61.9 MB). Free memory was 206.5 MB in the beginning and 265.6 MB in the end (delta: -59.2 MB). Peak memory consumption was 30.5 MB. Max. memory is 14.2 GB. [2020-10-16 05:11:27,461 INFO L168 Benchmark]: Boogie Procedure Inliner took 46.65 ms. Allocated memory is still 313.0 MB. Free memory is still 265.6 MB. There was no memory consumed. Max. memory is 14.2 GB. [2020-10-16 05:11:27,462 INFO L168 Benchmark]: Boogie Preprocessor took 25.70 ms. Allocated memory is still 313.0 MB. Free memory was 265.6 MB in the beginning and 263.1 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.5 MB. Max. memory is 14.2 GB. [2020-10-16 05:11:27,462 INFO L168 Benchmark]: RCFGBuilder took 378.09 ms. Allocated memory is still 313.0 MB. Free memory was 263.1 MB in the beginning and 241.3 MB in the end (delta: 21.8 MB). Peak memory consumption was 21.8 MB. Max. memory is 14.2 GB. [2020-10-16 05:11:27,463 INFO L168 Benchmark]: TraceAbstraction took 2852.74 ms. Allocated memory was 313.0 MB in the beginning and 369.1 MB in the end (delta: 56.1 MB). Free memory was 238.8 MB in the beginning and 251.3 MB in the end (delta: -12.5 MB). Peak memory consumption was 43.6 MB. Max. memory is 14.2 GB. [2020-10-16 05:11:27,477 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 251.1 MB. Free memory is still 227.5 MB. There was no memory consumed. Max. memory is 14.2 GB. * CACSL2BoogieTranslator took 751.16 ms. Allocated memory was 251.1 MB in the beginning and 313.0 MB in the end (delta: 61.9 MB). Free memory was 206.5 MB in the beginning and 265.6 MB in the end (delta: -59.2 MB). Peak memory consumption was 30.5 MB. Max. memory is 14.2 GB. * Boogie Procedure Inliner took 46.65 ms. Allocated memory is still 313.0 MB. Free memory is still 265.6 MB. There was no memory consumed. Max. memory is 14.2 GB. * Boogie Preprocessor took 25.70 ms. Allocated memory is still 313.0 MB. Free memory was 265.6 MB in the beginning and 263.1 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.5 MB. Max. memory is 14.2 GB. * RCFGBuilder took 378.09 ms. Allocated memory is still 313.0 MB. Free memory was 263.1 MB in the beginning and 241.3 MB in the end (delta: 21.8 MB). Peak memory consumption was 21.8 MB. Max. memory is 14.2 GB. * TraceAbstraction took 2852.74 ms. Allocated memory was 313.0 MB in the beginning and 369.1 MB in the end (delta: 56.1 MB). Free memory was 238.8 MB in the beginning and 251.3 MB in the end (delta: -12.5 MB). Peak memory consumption was 43.6 MB. Max. memory is 14.2 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 594 VarBasedMoverChecksPositive, 47 VarBasedMoverChecksNegative, 7 SemBasedMoverChecksPositive, 40 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.2s, 71 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 1.2s, 65 PlacesBefore, 27 PlacesAfterwards, 56 TransitionsBefore, 18 TransitionsAfterwards, 864 CoEnabledTransitionPairs, 5 FixpointIterations, 14 TrivialSequentialCompositions, 25 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 4 ConcurrentYvCompositions, 0 ChoiceCompositions, 43 TotalNumberOfCompositions, 1810 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, 69 locations, 1 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: VerificationResult: SAFE, OverallTime: 2.7s, OverallIterations: 8, TraceHistogramMax: 1, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.3s, HoareTripleCheckerStatistics: 26 SDtfs, 15 SDslu, 13 SDs, 0 SdLazy, 99 SolverSat, 24 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 27 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=220occurred in iteration=5, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 100 NumberOfCodeBlocks, 100 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 92 ConstructedInterpolants, 0 QuantifiedInterpolants, 2746 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...