/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-RepeatedSemanticLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-wmm/rfi001_rmo.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-d5b4239aa45c8d22a30959944f2ef622f7386a6d-d5b4239 [2021-03-25 14:41:18,475 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-03-25 14:41:18,478 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-03-25 14:41:18,518 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-03-25 14:41:18,519 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-03-25 14:41:18,522 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-03-25 14:41:18,525 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-03-25 14:41:18,531 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-03-25 14:41:18,533 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-03-25 14:41:18,538 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-03-25 14:41:18,539 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-03-25 14:41:18,540 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-03-25 14:41:18,541 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-03-25 14:41:18,542 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-03-25 14:41:18,544 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-03-25 14:41:18,545 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-03-25 14:41:18,548 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-03-25 14:41:18,549 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-03-25 14:41:18,551 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-03-25 14:41:18,559 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-03-25 14:41:18,560 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-03-25 14:41:18,563 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-03-25 14:41:18,564 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-03-25 14:41:18,564 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-03-25 14:41:18,567 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-03-25 14:41:18,570 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-03-25 14:41:18,571 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-03-25 14:41:18,572 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-03-25 14:41:18,573 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-03-25 14:41:18,573 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-03-25 14:41:18,574 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-03-25 14:41:18,574 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-03-25 14:41:18,575 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-03-25 14:41:18,575 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-03-25 14:41:18,575 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-03-25 14:41:18,576 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-03-25 14:41:18,577 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-RepeatedSemanticLbe.epf [2021-03-25 14:41:18,612 INFO L113 SettingsManager]: Loading preferences was successful [2021-03-25 14:41:18,612 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-03-25 14:41:18,616 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-03-25 14:41:18,616 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-03-25 14:41:18,616 INFO L138 SettingsManager]: * Use SBE=true [2021-03-25 14:41:18,616 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-03-25 14:41:18,616 INFO L138 SettingsManager]: * sizeof long=4 [2021-03-25 14:41:18,617 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-03-25 14:41:18,617 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-03-25 14:41:18,617 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-03-25 14:41:18,618 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-03-25 14:41:18,618 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-03-25 14:41:18,618 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-03-25 14:41:18,618 INFO L138 SettingsManager]: * sizeof long double=12 [2021-03-25 14:41:18,618 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-03-25 14:41:18,618 INFO L138 SettingsManager]: * Use constant arrays=true [2021-03-25 14:41:18,618 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-03-25 14:41:18,619 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-03-25 14:41:18,619 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-03-25 14:41:18,619 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-03-25 14:41:18,619 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-03-25 14:41:18,619 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-03-25 14:41:18,619 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-03-25 14:41:18,620 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-03-25 14:41:18,620 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-03-25 14:41:18,620 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-03-25 14:41:18,620 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-03-25 14:41:18,620 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-03-25 14:41:18,620 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-03-25 14:41:18,620 INFO L138 SettingsManager]: * Apply repeated Lipton Reduction=true WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-03-25 14:41:18,911 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-03-25 14:41:18,931 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-03-25 14:41:18,933 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-03-25 14:41:18,934 INFO L271 PluginConnector]: Initializing CDTParser... [2021-03-25 14:41:18,935 INFO L275 PluginConnector]: CDTParser initialized [2021-03-25 14:41:18,936 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/rfi001_rmo.opt.i [2021-03-25 14:41:19,004 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7374159d4/e256ac89579747dda93c065b97801eb7/FLAG3a0748517 [2021-03-25 14:41:19,592 INFO L306 CDTParser]: Found 1 translation units. [2021-03-25 14:41:19,593 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/rfi001_rmo.opt.i [2021-03-25 14:41:19,609 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7374159d4/e256ac89579747dda93c065b97801eb7/FLAG3a0748517 [2021-03-25 14:41:19,892 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7374159d4/e256ac89579747dda93c065b97801eb7 [2021-03-25 14:41:19,896 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-03-25 14:41:19,898 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-03-25 14:41:19,901 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-03-25 14:41:19,901 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-03-25 14:41:19,904 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-03-25 14:41:19,904 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.03 02:41:19" (1/1) ... [2021-03-25 14:41:19,905 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6c7732b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 02:41:19, skipping insertion in model container [2021-03-25 14:41:19,905 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.03 02:41:19" (1/1) ... [2021-03-25 14:41:19,911 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-03-25 14:41:19,956 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-03-25 14:41:20,144 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/rfi001_rmo.opt.i[948,961] [2021-03-25 14:41:20,273 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-03-25 14:41:20,279 INFO L203 MainTranslator]: Completed pre-run [2021-03-25 14:41:20,288 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/rfi001_rmo.opt.i[948,961] [2021-03-25 14:41:20,325 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-03-25 14:41:20,389 INFO L208 MainTranslator]: Completed translation [2021-03-25 14:41:20,389 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 02:41:20 WrapperNode [2021-03-25 14:41:20,389 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-03-25 14:41:20,390 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-03-25 14:41:20,390 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-03-25 14:41:20,391 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-03-25 14:41:20,396 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 02:41:20" (1/1) ... [2021-03-25 14:41:20,409 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 02:41:20" (1/1) ... [2021-03-25 14:41:20,441 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-03-25 14:41:20,442 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-03-25 14:41:20,442 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-03-25 14:41:20,442 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-03-25 14:41:20,453 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 02:41:20" (1/1) ... [2021-03-25 14:41:20,454 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 02:41:20" (1/1) ... [2021-03-25 14:41:20,457 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 02:41:20" (1/1) ... [2021-03-25 14:41:20,457 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 02:41:20" (1/1) ... [2021-03-25 14:41:20,464 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 02:41:20" (1/1) ... [2021-03-25 14:41:20,466 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 02:41:20" (1/1) ... [2021-03-25 14:41:20,481 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 02:41:20" (1/1) ... [2021-03-25 14:41:20,485 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-03-25 14:41:20,485 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-03-25 14:41:20,486 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-03-25 14:41:20,486 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-03-25 14:41:20,486 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 02:41:20" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-03-25 14:41:20,549 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-03-25 14:41:20,550 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-03-25 14:41:20,551 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-03-25 14:41:20,551 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-03-25 14:41:20,551 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2021-03-25 14:41:20,552 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2021-03-25 14:41:20,552 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2021-03-25 14:41:20,553 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2021-03-25 14:41:20,553 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-03-25 14:41:20,553 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-03-25 14:41:20,553 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-03-25 14:41:20,553 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-03-25 14:41:20,554 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-03-25 14:41:22,019 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-03-25 14:41:22,019 INFO L299 CfgBuilder]: Removed 10 assume(true) statements. [2021-03-25 14:41:22,021 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.03 02:41:22 BoogieIcfgContainer [2021-03-25 14:41:22,021 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-03-25 14:41:22,022 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-03-25 14:41:22,022 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-03-25 14:41:22,025 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-03-25 14:41:22,025 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.03 02:41:19" (1/3) ... [2021-03-25 14:41:22,026 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3a5cdcba and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.03 02:41:22, skipping insertion in model container [2021-03-25 14:41:22,026 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 02:41:20" (2/3) ... [2021-03-25 14:41:22,026 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3a5cdcba and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.03 02:41:22, skipping insertion in model container [2021-03-25 14:41:22,026 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.03 02:41:22" (3/3) ... [2021-03-25 14:41:22,027 INFO L111 eAbstractionObserver]: Analyzing ICFG rfi001_rmo.opt.i [2021-03-25 14:41:22,033 INFO L149 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-03-25 14:41:22,036 INFO L161 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2021-03-25 14:41:22,037 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-03-25 14:41:22,061 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:41:22,061 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:41:22,062 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:41:22,062 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:41:22,062 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:41:22,062 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:41:22,062 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:41:22,062 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:41:22,062 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:41:22,063 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:41:22,063 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:41:22,063 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:41:22,063 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:41:22,063 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:41:22,063 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:41:22,064 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:41:22,064 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:41:22,064 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:41:22,064 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:41:22,064 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:41:22,064 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:41:22,064 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:41:22,065 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:41:22,065 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:41:22,065 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:41:22,101 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:41:22,102 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:41:22,102 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:41:22,103 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:41:22,103 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:41:22,103 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:41:22,103 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:41:22,103 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:41:22,103 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:41:22,103 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:41:22,103 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:41:22,104 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:41:22,104 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:41:22,104 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:41:22,104 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:41:22,104 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:41:22,104 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:41:22,105 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:41:22,105 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:41:22,105 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:41:22,105 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:41:22,105 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:41:22,105 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:41:22,105 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:41:22,105 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:41:22,106 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:41:22,106 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:41:22,106 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:41:22,106 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:41:22,106 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:41:22,106 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:41:22,106 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:41:22,107 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:41:22,107 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:41:22,107 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:41:22,108 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:41:22,109 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:41:22,109 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:41:22,109 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:41:22,109 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:41:22,109 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:41:22,109 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:41:22,109 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:41:22,109 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:41:22,110 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:41:22,110 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:41:22,110 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:41:22,111 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:41:22,111 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:41:22,112 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:41:22,112 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:41:22,112 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:41:22,112 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:41:22,112 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:41:22,112 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:41:22,112 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:41:22,112 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:41:22,113 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-03-25 14:41:22,129 INFO L253 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2021-03-25 14:41:22,145 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-03-25 14:41:22,145 INFO L377 AbstractCegarLoop]: Hoare is false [2021-03-25 14:41:22,145 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-03-25 14:41:22,145 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-03-25 14:41:22,145 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-03-25 14:41:22,145 INFO L381 AbstractCegarLoop]: Difference is false [2021-03-25 14:41:22,145 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-03-25 14:41:22,145 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-03-25 14:41:22,153 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 89 places, 84 transitions, 178 flow [2021-03-25 14:41:22,181 INFO L129 PetriNetUnfolder]: 2/82 cut-off events. [2021-03-25 14:41:22,181 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-25 14:41:22,184 INFO L84 FinitePrefix]: Finished finitePrefix Result has 89 conditions, 82 events. 2/82 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 54 event pairs, 0 based on Foata normal form. 0/78 useless extension candidates. Maximal degree in co-relation 48. Up to 2 conditions per place. [2021-03-25 14:41:22,184 INFO L82 GeneralOperation]: Start removeDead. Operand has 89 places, 84 transitions, 178 flow [2021-03-25 14:41:22,187 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 87 places, 82 transitions, 170 flow [2021-03-25 14:41:22,188 INFO L165 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-03-25 14:41:22,198 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 87 places, 82 transitions, 170 flow [2021-03-25 14:41:22,200 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 87 places, 82 transitions, 170 flow [2021-03-25 14:41:22,202 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 87 places, 82 transitions, 170 flow [2021-03-25 14:41:22,215 INFO L129 PetriNetUnfolder]: 2/82 cut-off events. [2021-03-25 14:41:22,216 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-25 14:41:22,216 INFO L84 FinitePrefix]: Finished finitePrefix Result has 89 conditions, 82 events. 2/82 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 52 event pairs, 0 based on Foata normal form. 0/78 useless extension candidates. Maximal degree in co-relation 48. Up to 2 conditions per place. [2021-03-25 14:41:22,218 INFO L142 LiptonReduction]: Number of co-enabled transitions 1046 [2021-03-25 14:41:23,402 WARN L205 SmtUtils]: Spent 205.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 58 [2021-03-25 14:41:23,888 WARN L205 SmtUtils]: Spent 405.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 81 [2021-03-25 14:41:24,031 WARN L205 SmtUtils]: Spent 141.00 ms on a formula simplification that was a NOOP. DAG size: 79 [2021-03-25 14:41:25,369 WARN L205 SmtUtils]: Spent 682.00 ms on a formula simplification. DAG size of input: 226 DAG size of output: 186 [2021-03-25 14:41:25,925 WARN L205 SmtUtils]: Spent 555.00 ms on a formula simplification. DAG size of input: 184 DAG size of output: 183 [2021-03-25 14:41:27,205 WARN L205 SmtUtils]: Spent 1.27 s on a formula simplification. DAG size of input: 310 DAG size of output: 265 [2021-03-25 14:41:27,755 WARN L205 SmtUtils]: Spent 548.00 ms on a formula simplification that was a NOOP. DAG size: 262 [2021-03-25 14:41:28,129 INFO L154 LiptonReduction]: Checked pairs total: 1715 [2021-03-25 14:41:28,130 INFO L156 LiptonReduction]: Total number of compositions: 56 [2021-03-25 14:41:28,134 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 5946 [2021-03-25 14:41:28,143 INFO L129 PetriNetUnfolder]: 0/16 cut-off events. [2021-03-25 14:41:28,143 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-25 14:41:28,143 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 14:41:28,144 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 14:41:28,144 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1INUSE_VIOLATION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-25 14:41:28,148 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 14:41:28,148 INFO L82 PathProgramCache]: Analyzing trace with hash 1574192890, now seen corresponding path program 1 times [2021-03-25 14:41:28,154 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 14:41:28,155 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [905198579] [2021-03-25 14:41:28,155 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 14:41:28,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 14:41:28,399 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 14:41:28,399 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 14:41:28,400 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 14:41:28,401 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 14:41:28,407 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 14:41:28,407 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [905198579] [2021-03-25 14:41:28,408 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 14:41:28,408 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-03-25 14:41:28,408 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [262187385] [2021-03-25 14:41:28,417 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-25 14:41:28,417 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 14:41:28,426 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-25 14:41:28,427 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-25 14:41:28,431 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 119 out of 140 [2021-03-25 14:41:28,435 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 39 places, 33 transitions, 72 flow. Second operand has 3 states, 3 states have (on average 119.66666666666667) internal successors, (359), 3 states have internal predecessors, (359), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 14:41:28,435 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 14:41:28,435 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 119 of 140 [2021-03-25 14:41:28,436 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 14:41:28,499 INFO L129 PetriNetUnfolder]: 16/87 cut-off events. [2021-03-25 14:41:28,499 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-25 14:41:28,500 INFO L84 FinitePrefix]: Finished finitePrefix Result has 129 conditions, 87 events. 16/87 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 288 event pairs, 6 based on Foata normal form. 6/86 useless extension candidates. Maximal degree in co-relation 112. Up to 27 conditions per place. [2021-03-25 14:41:28,501 INFO L132 encePairwiseOnDemand]: 136/140 looper letters, 7 selfloop transitions, 2 changer transitions 0/33 dead transitions. [2021-03-25 14:41:28,502 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 39 places, 33 transitions, 90 flow [2021-03-25 14:41:28,502 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-25 14:41:28,504 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-25 14:41:28,513 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 369 transitions. [2021-03-25 14:41:28,518 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8785714285714286 [2021-03-25 14:41:28,518 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 369 transitions. [2021-03-25 14:41:28,518 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 369 transitions. [2021-03-25 14:41:28,525 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 14:41:28,527 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 369 transitions. [2021-03-25 14:41:28,532 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 123.0) internal successors, (369), 3 states have internal predecessors, (369), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 14:41:28,539 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 140.0) internal successors, (560), 4 states have internal predecessors, (560), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 14:41:28,539 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 140.0) internal successors, (560), 4 states have internal predecessors, (560), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 14:41:28,541 INFO L185 Difference]: Start difference. First operand has 39 places, 33 transitions, 72 flow. Second operand 3 states and 369 transitions. [2021-03-25 14:41:28,542 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 39 places, 33 transitions, 90 flow [2021-03-25 14:41:28,543 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 37 places, 33 transitions, 88 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-03-25 14:41:28,545 INFO L241 Difference]: Finished difference. Result has 37 places, 30 transitions, 68 flow [2021-03-25 14:41:28,546 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=140, PETRI_DIFFERENCE_MINUEND_FLOW=64, PETRI_DIFFERENCE_MINUEND_PLACES=35, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=30, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=28, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=68, PETRI_PLACES=37, PETRI_TRANSITIONS=30} [2021-03-25 14:41:28,547 INFO L343 CegarLoopForPetriNet]: 39 programPoint places, -2 predicate places. [2021-03-25 14:41:28,547 INFO L165 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-03-25 14:41:28,547 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 37 places, 30 transitions, 68 flow [2021-03-25 14:41:28,548 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 37 places, 30 transitions, 68 flow [2021-03-25 14:41:28,548 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 37 places, 30 transitions, 68 flow [2021-03-25 14:41:28,555 INFO L129 PetriNetUnfolder]: 0/30 cut-off events. [2021-03-25 14:41:28,555 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-25 14:41:28,555 INFO L84 FinitePrefix]: Finished finitePrefix Result has 38 conditions, 30 events. 0/30 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 25 event pairs, 0 based on Foata normal form. 0/29 useless extension candidates. Maximal degree in co-relation 0. Up to 2 conditions per place. [2021-03-25 14:41:28,555 INFO L142 LiptonReduction]: Number of co-enabled transitions 218 [2021-03-25 14:41:29,088 WARN L205 SmtUtils]: Spent 310.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2021-03-25 14:41:29,405 WARN L205 SmtUtils]: Spent 316.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2021-03-25 14:41:29,978 WARN L205 SmtUtils]: Spent 570.00 ms on a formula simplification that was a NOOP. DAG size: 265 [2021-03-25 14:41:30,585 WARN L205 SmtUtils]: Spent 605.00 ms on a formula simplification that was a NOOP. DAG size: 265 [2021-03-25 14:41:31,077 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 81 [2021-03-25 14:41:31,213 WARN L205 SmtUtils]: Spent 134.00 ms on a formula simplification that was a NOOP. DAG size: 81 [2021-03-25 14:41:31,631 WARN L205 SmtUtils]: Spent 279.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2021-03-25 14:41:31,941 WARN L205 SmtUtils]: Spent 309.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2021-03-25 14:41:32,560 WARN L205 SmtUtils]: Spent 616.00 ms on a formula simplification that was a NOOP. DAG size: 276 [2021-03-25 14:41:33,212 WARN L205 SmtUtils]: Spent 651.00 ms on a formula simplification that was a NOOP. DAG size: 276 [2021-03-25 14:41:33,874 INFO L154 LiptonReduction]: Checked pairs total: 651 [2021-03-25 14:41:33,874 INFO L156 LiptonReduction]: Total number of compositions: 13 [2021-03-25 14:41:33,874 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 5327 [2021-03-25 14:41:33,901 INFO L480 AbstractCegarLoop]: Abstraction has has 25 places, 18 transitions, 44 flow [2021-03-25 14:41:33,901 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 119.66666666666667) internal successors, (359), 3 states have internal predecessors, (359), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 14:41:33,902 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 14:41:33,902 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 14:41:33,902 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-03-25 14:41:33,902 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1INUSE_VIOLATION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-25 14:41:33,904 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 14:41:33,904 INFO L82 PathProgramCache]: Analyzing trace with hash 1071371314, now seen corresponding path program 1 times [2021-03-25 14:41:33,904 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 14:41:33,904 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1200174436] [2021-03-25 14:41:33,904 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 14:41:33,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 14:41:34,003 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 14:41:34,003 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 14:41:34,004 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 14:41:34,004 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 14:41:34,012 INFO L142 QuantifierPusher]: treesize reduction 9, result has 30.8 percent of original size [2021-03-25 14:41:34,012 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-25 14:41:34,016 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 14:41:34,016 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1200174436] [2021-03-25 14:41:34,016 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 14:41:34,016 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-25 14:41:34,016 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [84990477] [2021-03-25 14:41:34,017 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-25 14:41:34,017 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 14:41:34,017 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-25 14:41:34,018 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-03-25 14:41:34,019 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 127 out of 153 [2021-03-25 14:41:34,019 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 25 places, 18 transitions, 44 flow. Second operand has 4 states, 4 states have (on average 127.75) internal successors, (511), 4 states have internal predecessors, (511), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 14:41:34,019 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 14:41:34,020 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 127 of 153 [2021-03-25 14:41:34,020 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 14:41:34,050 INFO L129 PetriNetUnfolder]: 1/21 cut-off events. [2021-03-25 14:41:34,050 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-25 14:41:34,051 INFO L84 FinitePrefix]: Finished finitePrefix Result has 36 conditions, 21 events. 1/21 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 34 event pairs, 0 based on Foata normal form. 0/20 useless extension candidates. Maximal degree in co-relation 26. Up to 3 conditions per place. [2021-03-25 14:41:34,051 INFO L132 encePairwiseOnDemand]: 149/153 looper letters, 1 selfloop transitions, 2 changer transitions 4/20 dead transitions. [2021-03-25 14:41:34,051 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 29 places, 20 transitions, 60 flow [2021-03-25 14:41:34,051 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-25 14:41:34,052 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-03-25 14:41:34,053 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 642 transitions. [2021-03-25 14:41:34,054 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8392156862745098 [2021-03-25 14:41:34,054 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 642 transitions. [2021-03-25 14:41:34,056 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 642 transitions. [2021-03-25 14:41:34,057 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 14:41:34,057 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 642 transitions. [2021-03-25 14:41:34,058 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 128.4) internal successors, (642), 5 states have internal predecessors, (642), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 14:41:34,067 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 153.0) internal successors, (918), 6 states have internal predecessors, (918), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 14:41:34,068 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 153.0) internal successors, (918), 6 states have internal predecessors, (918), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 14:41:34,068 INFO L185 Difference]: Start difference. First operand has 25 places, 18 transitions, 44 flow. Second operand 5 states and 642 transitions. [2021-03-25 14:41:34,068 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 29 places, 20 transitions, 60 flow [2021-03-25 14:41:34,068 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 27 places, 20 transitions, 56 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-03-25 14:41:34,069 INFO L241 Difference]: Finished difference. Result has 28 places, 16 transitions, 44 flow [2021-03-25 14:41:34,069 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=153, PETRI_DIFFERENCE_MINUEND_FLOW=40, PETRI_DIFFERENCE_MINUEND_PLACES=23, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=18, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=16, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=44, PETRI_PLACES=28, PETRI_TRANSITIONS=16} [2021-03-25 14:41:34,069 INFO L343 CegarLoopForPetriNet]: 39 programPoint places, -11 predicate places. [2021-03-25 14:41:34,070 INFO L165 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-03-25 14:41:34,070 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 28 places, 16 transitions, 44 flow [2021-03-25 14:41:34,070 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 28 places, 16 transitions, 44 flow [2021-03-25 14:41:34,070 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 24 places, 16 transitions, 44 flow [2021-03-25 14:41:34,073 INFO L129 PetriNetUnfolder]: 0/16 cut-off events. [2021-03-25 14:41:34,073 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-25 14:41:34,073 INFO L84 FinitePrefix]: Finished finitePrefix Result has 27 conditions, 16 events. 0/16 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 18 event pairs, 0 based on Foata normal form. 0/16 useless extension candidates. Maximal degree in co-relation 0. Up to 3 conditions per place. [2021-03-25 14:41:34,073 INFO L142 LiptonReduction]: Number of co-enabled transitions 92 [2021-03-25 14:41:34,511 WARN L205 SmtUtils]: Spent 308.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 110 [2021-03-25 14:41:34,629 WARN L205 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 106 [2021-03-25 14:41:34,893 WARN L205 SmtUtils]: Spent 262.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 110 [2021-03-25 14:41:35,016 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 106 [2021-03-25 14:41:35,018 INFO L154 LiptonReduction]: Checked pairs total: 222 [2021-03-25 14:41:35,018 INFO L156 LiptonReduction]: Total number of compositions: 1 [2021-03-25 14:41:35,018 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 948 [2021-03-25 14:41:35,019 INFO L480 AbstractCegarLoop]: Abstraction has has 23 places, 15 transitions, 42 flow [2021-03-25 14:41:35,020 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 127.75) internal successors, (511), 4 states have internal predecessors, (511), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 14:41:35,020 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 14:41:35,020 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 14:41:35,020 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-03-25 14:41:35,020 INFO L428 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1INUSE_VIOLATION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-25 14:41:35,020 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 14:41:35,020 INFO L82 PathProgramCache]: Analyzing trace with hash -211704109, now seen corresponding path program 1 times [2021-03-25 14:41:35,021 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 14:41:35,021 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [790770276] [2021-03-25 14:41:35,021 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 14:41:35,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 14:41:35,169 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 14:41:35,169 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 14:41:35,175 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 14:41:35,175 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 14:41:35,182 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 14:41:35,182 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 14:41:35,183 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 14:41:35,183 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 14:41:35,191 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 14:41:35,191 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [790770276] [2021-03-25 14:41:35,192 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 14:41:35,192 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-25 14:41:35,192 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1958989326] [2021-03-25 14:41:35,192 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-03-25 14:41:35,192 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 14:41:35,192 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-03-25 14:41:35,192 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-03-25 14:41:35,193 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 116 out of 154 [2021-03-25 14:41:35,194 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 23 places, 15 transitions, 42 flow. Second operand has 5 states, 5 states have (on average 117.0) internal successors, (585), 5 states have internal predecessors, (585), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 14:41:35,194 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 14:41:35,194 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 116 of 154 [2021-03-25 14:41:35,194 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 14:41:35,258 INFO L129 PetriNetUnfolder]: 21/62 cut-off events. [2021-03-25 14:41:35,258 INFO L130 PetriNetUnfolder]: For 5/5 co-relation queries the response was YES. [2021-03-25 14:41:35,258 INFO L84 FinitePrefix]: Finished finitePrefix Result has 132 conditions, 62 events. 21/62 cut-off events. For 5/5 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 188 event pairs, 13 based on Foata normal form. 1/63 useless extension candidates. Maximal degree in co-relation 122. Up to 40 conditions per place. [2021-03-25 14:41:35,259 INFO L132 encePairwiseOnDemand]: 149/154 looper letters, 8 selfloop transitions, 5 changer transitions 0/21 dead transitions. [2021-03-25 14:41:35,259 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 26 places, 21 transitions, 80 flow [2021-03-25 14:41:35,260 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-03-25 14:41:35,260 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-03-25 14:41:35,261 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 478 transitions. [2021-03-25 14:41:35,261 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.775974025974026 [2021-03-25 14:41:35,261 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 478 transitions. [2021-03-25 14:41:35,261 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 478 transitions. [2021-03-25 14:41:35,261 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 14:41:35,262 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 478 transitions. [2021-03-25 14:41:35,263 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 119.5) internal successors, (478), 4 states have internal predecessors, (478), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 14:41:35,264 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 154.0) internal successors, (770), 5 states have internal predecessors, (770), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 14:41:35,264 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 154.0) internal successors, (770), 5 states have internal predecessors, (770), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 14:41:35,264 INFO L185 Difference]: Start difference. First operand has 23 places, 15 transitions, 42 flow. Second operand 4 states and 478 transitions. [2021-03-25 14:41:35,265 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 26 places, 21 transitions, 80 flow [2021-03-25 14:41:35,265 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 24 places, 21 transitions, 76 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-03-25 14:41:35,266 INFO L241 Difference]: Finished difference. Result has 26 places, 19 transitions, 70 flow [2021-03-25 14:41:35,266 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=154, PETRI_DIFFERENCE_MINUEND_FLOW=38, PETRI_DIFFERENCE_MINUEND_PLACES=21, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=15, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=11, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=70, PETRI_PLACES=26, PETRI_TRANSITIONS=19} [2021-03-25 14:41:35,266 INFO L343 CegarLoopForPetriNet]: 39 programPoint places, -13 predicate places. [2021-03-25 14:41:35,266 INFO L165 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-03-25 14:41:35,266 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 26 places, 19 transitions, 70 flow [2021-03-25 14:41:35,266 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 26 places, 19 transitions, 70 flow [2021-03-25 14:41:35,266 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 26 places, 19 transitions, 70 flow [2021-03-25 14:41:35,270 INFO L129 PetriNetUnfolder]: 3/24 cut-off events. [2021-03-25 14:41:35,270 INFO L130 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2021-03-25 14:41:35,270 INFO L84 FinitePrefix]: Finished finitePrefix Result has 54 conditions, 24 events. 3/24 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 46 event pairs, 1 based on Foata normal form. 0/24 useless extension candidates. Maximal degree in co-relation 44. Up to 8 conditions per place. [2021-03-25 14:41:35,271 INFO L142 LiptonReduction]: Number of co-enabled transitions 102 [2021-03-25 14:41:35,293 INFO L154 LiptonReduction]: Checked pairs total: 115 [2021-03-25 14:41:35,293 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 14:41:35,293 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 27 [2021-03-25 14:41:35,294 INFO L480 AbstractCegarLoop]: Abstraction has has 26 places, 19 transitions, 70 flow [2021-03-25 14:41:35,294 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 117.0) internal successors, (585), 5 states have internal predecessors, (585), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 14:41:35,294 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 14:41:35,294 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 14:41:35,294 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-03-25 14:41:35,295 INFO L428 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1INUSE_VIOLATION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-25 14:41:35,295 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 14:41:35,295 INFO L82 PathProgramCache]: Analyzing trace with hash -1079174078, now seen corresponding path program 1 times [2021-03-25 14:41:35,295 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 14:41:35,295 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [17187593] [2021-03-25 14:41:35,295 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 14:41:35,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 14:41:35,374 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 14:41:35,374 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 14:41:35,378 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 14:41:35,378 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 14:41:35,384 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 14:41:35,384 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 14:41:35,384 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 14:41:35,385 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [17187593] [2021-03-25 14:41:35,385 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 14:41:35,385 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-25 14:41:35,385 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [411292968] [2021-03-25 14:41:35,385 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-25 14:41:35,385 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 14:41:35,386 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-25 14:41:35,386 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-03-25 14:41:35,387 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 128 out of 154 [2021-03-25 14:41:35,387 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 26 places, 19 transitions, 70 flow. Second operand has 4 states, 4 states have (on average 128.75) internal successors, (515), 4 states have internal predecessors, (515), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 14:41:35,388 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 14:41:35,388 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 128 of 154 [2021-03-25 14:41:35,388 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 14:41:35,419 INFO L129 PetriNetUnfolder]: 10/45 cut-off events. [2021-03-25 14:41:35,421 INFO L130 PetriNetUnfolder]: For 6/6 co-relation queries the response was YES. [2021-03-25 14:41:35,421 INFO L84 FinitePrefix]: Finished finitePrefix Result has 105 conditions, 45 events. 10/45 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 133 event pairs, 4 based on Foata normal form. 5/48 useless extension candidates. Maximal degree in co-relation 93. Up to 19 conditions per place. [2021-03-25 14:41:35,421 INFO L132 encePairwiseOnDemand]: 149/154 looper letters, 4 selfloop transitions, 5 changer transitions 3/26 dead transitions. [2021-03-25 14:41:35,422 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 30 places, 26 transitions, 108 flow [2021-03-25 14:41:35,422 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-25 14:41:35,422 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-03-25 14:41:35,423 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 654 transitions. [2021-03-25 14:41:35,424 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8493506493506493 [2021-03-25 14:41:35,424 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 654 transitions. [2021-03-25 14:41:35,424 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 654 transitions. [2021-03-25 14:41:35,424 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 14:41:35,424 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 654 transitions. [2021-03-25 14:41:35,426 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 130.8) internal successors, (654), 5 states have internal predecessors, (654), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 14:41:35,428 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 154.0) internal successors, (924), 6 states have internal predecessors, (924), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 14:41:35,428 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 154.0) internal successors, (924), 6 states have internal predecessors, (924), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 14:41:35,428 INFO L185 Difference]: Start difference. First operand has 26 places, 19 transitions, 70 flow. Second operand 5 states and 654 transitions. [2021-03-25 14:41:35,428 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 30 places, 26 transitions, 108 flow [2021-03-25 14:41:35,429 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 30 places, 26 transitions, 108 flow, removed 0 selfloop flow, removed 0 redundant places. [2021-03-25 14:41:35,430 INFO L241 Difference]: Finished difference. Result has 33 places, 23 transitions, 107 flow [2021-03-25 14:41:35,430 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=154, PETRI_DIFFERENCE_MINUEND_FLOW=70, PETRI_DIFFERENCE_MINUEND_PLACES=26, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=19, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=15, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=107, PETRI_PLACES=33, PETRI_TRANSITIONS=23} [2021-03-25 14:41:35,430 INFO L343 CegarLoopForPetriNet]: 39 programPoint places, -6 predicate places. [2021-03-25 14:41:35,430 INFO L165 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-03-25 14:41:35,430 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 33 places, 23 transitions, 107 flow [2021-03-25 14:41:35,431 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 33 places, 23 transitions, 107 flow [2021-03-25 14:41:35,431 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 33 places, 23 transitions, 107 flow [2021-03-25 14:41:35,437 INFO L129 PetriNetUnfolder]: 7/41 cut-off events. [2021-03-25 14:41:35,437 INFO L130 PetriNetUnfolder]: For 17/18 co-relation queries the response was YES. [2021-03-25 14:41:35,438 INFO L84 FinitePrefix]: Finished finitePrefix Result has 114 conditions, 41 events. 7/41 cut-off events. For 17/18 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 114 event pairs, 3 based on Foata normal form. 1/41 useless extension candidates. Maximal degree in co-relation 99. Up to 13 conditions per place. [2021-03-25 14:41:35,439 INFO L142 LiptonReduction]: Number of co-enabled transitions 106 [2021-03-25 14:41:35,440 INFO L154 LiptonReduction]: Checked pairs total: 91 [2021-03-25 14:41:35,440 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 14:41:35,441 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 11 [2021-03-25 14:41:35,444 INFO L480 AbstractCegarLoop]: Abstraction has has 33 places, 23 transitions, 107 flow [2021-03-25 14:41:35,445 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 128.75) internal successors, (515), 4 states have internal predecessors, (515), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 14:41:35,445 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 14:41:35,445 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 14:41:35,445 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-03-25 14:41:35,445 INFO L428 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1INUSE_VIOLATION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-25 14:41:35,446 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 14:41:35,446 INFO L82 PathProgramCache]: Analyzing trace with hash 1386146829, now seen corresponding path program 1 times [2021-03-25 14:41:35,446 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 14:41:35,446 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [342671312] [2021-03-25 14:41:35,446 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 14:41:35,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 14:41:35,536 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 14:41:35,536 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 14:41:35,539 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 14:41:35,540 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 14:41:35,543 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 14:41:35,544 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 14:41:35,549 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 14:41:35,550 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 14:41:35,550 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 14:41:35,550 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [342671312] [2021-03-25 14:41:35,550 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 14:41:35,550 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-03-25 14:41:35,550 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [506773779] [2021-03-25 14:41:35,550 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-03-25 14:41:35,550 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 14:41:35,551 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-03-25 14:41:35,551 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-03-25 14:41:35,551 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 128 out of 154 [2021-03-25 14:41:35,552 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 33 places, 23 transitions, 107 flow. Second operand has 5 states, 5 states have (on average 128.8) internal successors, (644), 5 states have internal predecessors, (644), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 14:41:35,552 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 14:41:35,552 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 128 of 154 [2021-03-25 14:41:35,552 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 14:41:35,595 INFO L129 PetriNetUnfolder]: 4/32 cut-off events. [2021-03-25 14:41:35,595 INFO L130 PetriNetUnfolder]: For 32/45 co-relation queries the response was YES. [2021-03-25 14:41:35,595 INFO L84 FinitePrefix]: Finished finitePrefix Result has 106 conditions, 32 events. 4/32 cut-off events. For 32/45 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 63 event pairs, 0 based on Foata normal form. 17/49 useless extension candidates. Maximal degree in co-relation 89. Up to 12 conditions per place. [2021-03-25 14:41:35,595 INFO L132 encePairwiseOnDemand]: 149/154 looper letters, 2 selfloop transitions, 8 changer transitions 2/26 dead transitions. [2021-03-25 14:41:35,595 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 39 places, 26 transitions, 145 flow [2021-03-25 14:41:35,596 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-25 14:41:35,596 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-25 14:41:35,597 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 910 transitions. [2021-03-25 14:41:35,597 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8441558441558441 [2021-03-25 14:41:35,597 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 910 transitions. [2021-03-25 14:41:35,597 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 910 transitions. [2021-03-25 14:41:35,598 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 14:41:35,598 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 910 transitions. [2021-03-25 14:41:35,599 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 130.0) internal successors, (910), 7 states have internal predecessors, (910), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 14:41:35,601 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 154.0) internal successors, (1232), 8 states have internal predecessors, (1232), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 14:41:35,602 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 154.0) internal successors, (1232), 8 states have internal predecessors, (1232), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 14:41:35,602 INFO L185 Difference]: Start difference. First operand has 33 places, 23 transitions, 107 flow. Second operand 7 states and 910 transitions. [2021-03-25 14:41:35,602 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 39 places, 26 transitions, 145 flow [2021-03-25 14:41:35,603 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 38 places, 26 transitions, 139 flow, removed 2 selfloop flow, removed 1 redundant places. [2021-03-25 14:41:35,603 INFO L241 Difference]: Finished difference. Result has 41 places, 24 transitions, 134 flow [2021-03-25 14:41:35,604 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=154, PETRI_DIFFERENCE_MINUEND_FLOW=101, PETRI_DIFFERENCE_MINUEND_PLACES=32, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=23, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=15, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=134, PETRI_PLACES=41, PETRI_TRANSITIONS=24} [2021-03-25 14:41:35,604 INFO L343 CegarLoopForPetriNet]: 39 programPoint places, 2 predicate places. [2021-03-25 14:41:35,604 INFO L165 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-03-25 14:41:35,604 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 41 places, 24 transitions, 134 flow [2021-03-25 14:41:35,604 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 41 places, 24 transitions, 134 flow [2021-03-25 14:41:35,605 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 40 places, 24 transitions, 134 flow [2021-03-25 14:41:35,609 INFO L129 PetriNetUnfolder]: 3/31 cut-off events. [2021-03-25 14:41:35,609 INFO L130 PetriNetUnfolder]: For 39/45 co-relation queries the response was YES. [2021-03-25 14:41:35,609 INFO L84 FinitePrefix]: Finished finitePrefix Result has 104 conditions, 31 events. 3/31 cut-off events. For 39/45 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 55 event pairs, 0 based on Foata normal form. 0/31 useless extension candidates. Maximal degree in co-relation 86. Up to 12 conditions per place. [2021-03-25 14:41:35,610 INFO L142 LiptonReduction]: Number of co-enabled transitions 80 [2021-03-25 14:41:35,711 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 70 [2021-03-25 14:41:35,917 WARN L205 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2021-03-25 14:41:36,047 WARN L205 SmtUtils]: Spent 130.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2021-03-25 14:41:36,820 WARN L205 SmtUtils]: Spent 770.00 ms on a formula simplification. DAG size of input: 244 DAG size of output: 191 [2021-03-25 14:41:37,072 WARN L205 SmtUtils]: Spent 250.00 ms on a formula simplification that was a NOOP. DAG size: 175 [2021-03-25 14:41:38,527 WARN L205 SmtUtils]: Spent 1.45 s on a formula simplification. DAG size of input: 345 DAG size of output: 267 [2021-03-25 14:41:39,018 WARN L205 SmtUtils]: Spent 487.00 ms on a formula simplification that was a NOOP. DAG size: 249 [2021-03-25 14:41:39,022 INFO L154 LiptonReduction]: Checked pairs total: 164 [2021-03-25 14:41:39,022 INFO L156 LiptonReduction]: Total number of compositions: 4 [2021-03-25 14:41:39,023 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 3419 [2021-03-25 14:41:39,023 INFO L480 AbstractCegarLoop]: Abstraction has has 38 places, 20 transitions, 114 flow [2021-03-25 14:41:39,024 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 128.8) internal successors, (644), 5 states have internal predecessors, (644), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 14:41:39,024 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 14:41:39,024 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 14:41:39,024 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-03-25 14:41:39,024 INFO L428 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1INUSE_VIOLATION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-25 14:41:39,024 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 14:41:39,024 INFO L82 PathProgramCache]: Analyzing trace with hash -412169668, now seen corresponding path program 1 times [2021-03-25 14:41:39,024 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 14:41:39,025 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1937568749] [2021-03-25 14:41:39,025 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 14:41:39,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 14:41:39,108 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 14:41:39,108 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 14:41:39,109 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 14:41:39,111 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 14:41:39,115 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 14:41:39,116 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 14:41:39,120 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 14:41:39,120 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1937568749] [2021-03-25 14:41:39,120 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 14:41:39,120 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-25 14:41:39,120 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1613020093] [2021-03-25 14:41:39,120 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-25 14:41:39,121 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 14:41:39,121 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-25 14:41:39,121 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-03-25 14:41:39,122 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 127 out of 156 [2021-03-25 14:41:39,122 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 38 places, 20 transitions, 114 flow. Second operand has 4 states, 4 states have (on average 128.0) internal successors, (512), 4 states have internal predecessors, (512), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 14:41:39,123 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 14:41:39,123 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 127 of 156 [2021-03-25 14:41:39,123 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 14:41:39,150 INFO L129 PetriNetUnfolder]: 5/33 cut-off events. [2021-03-25 14:41:39,150 INFO L130 PetriNetUnfolder]: For 76/77 co-relation queries the response was YES. [2021-03-25 14:41:39,151 INFO L84 FinitePrefix]: Finished finitePrefix Result has 115 conditions, 33 events. 5/33 cut-off events. For 76/77 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 72 event pairs, 0 based on Foata normal form. 2/35 useless extension candidates. Maximal degree in co-relation 94. Up to 10 conditions per place. [2021-03-25 14:41:39,151 INFO L132 encePairwiseOnDemand]: 153/156 looper letters, 3 selfloop transitions, 1 changer transitions 3/20 dead transitions. [2021-03-25 14:41:39,151 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 37 places, 20 transitions, 117 flow [2021-03-25 14:41:39,152 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-03-25 14:41:39,152 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-03-25 14:41:39,153 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 514 transitions. [2021-03-25 14:41:39,153 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8237179487179487 [2021-03-25 14:41:39,153 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 514 transitions. [2021-03-25 14:41:39,153 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 514 transitions. [2021-03-25 14:41:39,154 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 14:41:39,154 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 514 transitions. [2021-03-25 14:41:39,155 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 128.5) internal successors, (514), 4 states have internal predecessors, (514), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 14:41:39,156 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 156.0) internal successors, (780), 5 states have internal predecessors, (780), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 14:41:39,156 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 156.0) internal successors, (780), 5 states have internal predecessors, (780), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 14:41:39,156 INFO L185 Difference]: Start difference. First operand has 38 places, 20 transitions, 114 flow. Second operand 4 states and 514 transitions. [2021-03-25 14:41:39,156 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 37 places, 20 transitions, 117 flow [2021-03-25 14:41:39,158 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 30 places, 20 transitions, 94 flow, removed 7 selfloop flow, removed 7 redundant places. [2021-03-25 14:41:39,159 INFO L241 Difference]: Finished difference. Result has 32 places, 17 transitions, 80 flow [2021-03-25 14:41:39,159 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=156, PETRI_DIFFERENCE_MINUEND_FLOW=82, 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=18, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=80, PETRI_PLACES=32, PETRI_TRANSITIONS=17} [2021-03-25 14:41:39,159 INFO L343 CegarLoopForPetriNet]: 39 programPoint places, -7 predicate places. [2021-03-25 14:41:39,159 INFO L165 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-03-25 14:41:39,160 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 32 places, 17 transitions, 80 flow [2021-03-25 14:41:39,160 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 32 places, 17 transitions, 80 flow [2021-03-25 14:41:39,160 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 31 places, 17 transitions, 80 flow [2021-03-25 14:41:39,164 INFO L129 PetriNetUnfolder]: 2/22 cut-off events. [2021-03-25 14:41:39,164 INFO L130 PetriNetUnfolder]: For 10/10 co-relation queries the response was YES. [2021-03-25 14:41:39,164 INFO L84 FinitePrefix]: Finished finitePrefix Result has 63 conditions, 22 events. 2/22 cut-off events. For 10/10 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 31 event pairs, 0 based on Foata normal form. 0/22 useless extension candidates. Maximal degree in co-relation 50. Up to 6 conditions per place. [2021-03-25 14:41:39,164 INFO L142 LiptonReduction]: Number of co-enabled transitions 18 [2021-03-25 14:41:39,428 WARN L205 SmtUtils]: Spent 216.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 63 [2021-03-25 14:41:39,815 WARN L205 SmtUtils]: Spent 312.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 86 [2021-03-25 14:41:39,938 WARN L205 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 84 [2021-03-25 14:41:40,041 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 68 [2021-03-25 14:41:40,278 WARN L205 SmtUtils]: Spent 208.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 87 [2021-03-25 14:41:40,460 INFO L154 LiptonReduction]: Checked pairs total: 27 [2021-03-25 14:41:40,461 INFO L156 LiptonReduction]: Total number of compositions: 5 [2021-03-25 14:41:40,461 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 1302 [2021-03-25 14:41:40,461 INFO L480 AbstractCegarLoop]: Abstraction has has 29 places, 15 transitions, 83 flow [2021-03-25 14:41:40,462 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 128.0) internal successors, (512), 4 states have internal predecessors, (512), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 14:41:40,462 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 14:41:40,462 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 14:41:40,462 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-03-25 14:41:40,462 INFO L428 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr1INUSE_VIOLATION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-25 14:41:40,462 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 14:41:40,462 INFO L82 PathProgramCache]: Analyzing trace with hash -1823325194, now seen corresponding path program 1 times [2021-03-25 14:41:40,463 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 14:41:40,463 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [300136864] [2021-03-25 14:41:40,463 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 14:41:40,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-03-25 14:41:40,487 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-03-25 14:41:40,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-03-25 14:41:40,524 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-03-25 14:41:40,546 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-03-25 14:41:40,546 INFO L634 BasicCegarLoop]: Counterexample might be feasible [2021-03-25 14:41:40,547 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-03-25 14:41:40,601 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.03 02:41:40 BasicIcfg [2021-03-25 14:41:40,601 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-03-25 14:41:40,602 INFO L168 Benchmark]: Toolchain (without parser) took 20703.81 ms. Allocated memory was 255.9 MB in the beginning and 696.3 MB in the end (delta: 440.4 MB). Free memory was 233.0 MB in the beginning and 552.4 MB in the end (delta: -319.4 MB). Peak memory consumption was 120.4 MB. Max. memory is 16.0 GB. [2021-03-25 14:41:40,602 INFO L168 Benchmark]: CDTParser took 0.12 ms. Allocated memory is still 255.9 MB. Free memory is still 237.7 MB. There was no memory consumed. Max. memory is 16.0 GB. [2021-03-25 14:41:40,602 INFO L168 Benchmark]: CACSL2BoogieTranslator took 488.87 ms. Allocated memory was 255.9 MB in the beginning and 388.0 MB in the end (delta: 132.1 MB). Free memory was 233.0 MB in the beginning and 348.0 MB in the end (delta: -115.0 MB). Peak memory consumption was 16.8 MB. Max. memory is 16.0 GB. [2021-03-25 14:41:40,603 INFO L168 Benchmark]: Boogie Procedure Inliner took 50.80 ms. Allocated memory is still 388.0 MB. Free memory was 348.0 MB in the beginning and 345.5 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-03-25 14:41:40,603 INFO L168 Benchmark]: Boogie Preprocessor took 43.10 ms. Allocated memory is still 388.0 MB. Free memory was 345.5 MB in the beginning and 343.4 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-03-25 14:41:40,603 INFO L168 Benchmark]: RCFGBuilder took 1535.42 ms. Allocated memory is still 388.0 MB. Free memory was 343.4 MB in the beginning and 282.4 MB in the end (delta: 61.0 MB). Peak memory consumption was 61.9 MB. Max. memory is 16.0 GB. [2021-03-25 14:41:40,603 INFO L168 Benchmark]: TraceAbstraction took 18578.92 ms. Allocated memory was 388.0 MB in the beginning and 696.3 MB in the end (delta: 308.3 MB). Free memory was 281.3 MB in the beginning and 552.4 MB in the end (delta: -271.1 MB). Peak memory consumption was 37.2 MB. Max. memory is 16.0 GB. [2021-03-25 14:41:40,605 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12 ms. Allocated memory is still 255.9 MB. Free memory is still 237.7 MB. There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 488.87 ms. Allocated memory was 255.9 MB in the beginning and 388.0 MB in the end (delta: 132.1 MB). Free memory was 233.0 MB in the beginning and 348.0 MB in the end (delta: -115.0 MB). Peak memory consumption was 16.8 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 50.80 ms. Allocated memory is still 388.0 MB. Free memory was 348.0 MB in the beginning and 345.5 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 43.10 ms. Allocated memory is still 388.0 MB. Free memory was 345.5 MB in the beginning and 343.4 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * RCFGBuilder took 1535.42 ms. Allocated memory is still 388.0 MB. Free memory was 343.4 MB in the beginning and 282.4 MB in the end (delta: 61.0 MB). Peak memory consumption was 61.9 MB. Max. memory is 16.0 GB. * TraceAbstraction took 18578.92 ms. Allocated memory was 388.0 MB in the beginning and 696.3 MB in the end (delta: 308.3 MB). Free memory was 281.3 MB in the beginning and 552.4 MB in the end (delta: -271.1 MB). Peak memory consumption was 37.2 MB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 5929.6ms, 87 PlacesBefore, 39 PlacesAfterwards, 82 TransitionsBefore, 33 TransitionsAfterwards, 1046 CoEnabledTransitionPairs, 4 FixpointIterations, 26 TrivialSequentialCompositions, 25 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 4 ConcurrentYvCompositions, 1 ChoiceCompositions, 56 TotalNumberOfCompositions, 1715 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 857, positive: 803, positive conditional: 0, positive unconditional: 803, negative: 54, negative conditional: 0, negative unconditional: 54, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 670, positive: 636, positive conditional: 0, positive unconditional: 636, negative: 34, negative conditional: 0, negative unconditional: 34, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 670, positive: 636, positive conditional: 0, positive unconditional: 636, negative: 34, negative conditional: 0, negative unconditional: 34, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 670, positive: 634, positive conditional: 0, positive unconditional: 634, negative: 36, negative conditional: 0, negative unconditional: 36, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 36, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 34, negative conditional: 0, negative unconditional: 34, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 679, positive: 5, positive conditional: 0, positive unconditional: 5, negative: 675, negative conditional: 0, negative unconditional: 675, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 857, positive: 167, positive conditional: 0, positive unconditional: 167, negative: 20, negative conditional: 0, negative unconditional: 20, unknown: 670, unknown conditional: 0, unknown unconditional: 670] , Statistics on independence cache: Total cache size (in pairs): 101, Positive cache size: 82, Positive conditional cache size: 0, Positive unconditional cache size: 82, Negative cache size: 19, Negative conditional cache size: 0, Negative unconditional cache size: 19 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 5325.6ms, 37 PlacesBefore, 25 PlacesAfterwards, 30 TransitionsBefore, 18 TransitionsAfterwards, 218 CoEnabledTransitionPairs, 4 FixpointIterations, 7 TrivialSequentialCompositions, 6 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 13 TotalNumberOfCompositions, 651 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 283, positive: 228, positive conditional: 0, positive unconditional: 228, negative: 55, negative conditional: 0, negative unconditional: 55, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 72, positive: 59, positive conditional: 0, positive unconditional: 59, negative: 13, negative conditional: 0, negative unconditional: 13, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 72, positive: 59, positive conditional: 0, positive unconditional: 59, negative: 13, negative conditional: 0, negative unconditional: 13, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 72, positive: 58, positive conditional: 0, positive unconditional: 58, negative: 14, negative conditional: 0, negative unconditional: 14, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 14, positive: 1, positive conditional: 0, positive unconditional: 1, negative: 13, negative conditional: 0, negative unconditional: 13, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 249, positive: 36, positive conditional: 0, positive unconditional: 36, negative: 213, negative conditional: 0, negative unconditional: 213, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 283, positive: 169, positive conditional: 0, positive unconditional: 169, negative: 42, negative conditional: 0, negative unconditional: 42, unknown: 72, unknown conditional: 0, unknown unconditional: 72] , Statistics on independence cache: Total cache size (in pairs): 82, Positive cache size: 67, Positive conditional cache size: 0, Positive unconditional cache size: 67, Negative cache size: 15, Negative conditional cache size: 0, Negative unconditional cache size: 15 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 948.3ms, 28 PlacesBefore, 23 PlacesAfterwards, 16 TransitionsBefore, 15 TransitionsAfterwards, 92 CoEnabledTransitionPairs, 2 FixpointIterations, 1 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 TotalNumberOfCompositions, 222 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 99, positive: 71, positive conditional: 0, positive unconditional: 71, negative: 28, negative conditional: 0, negative unconditional: 28, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 6, positive: 1, positive conditional: 0, positive unconditional: 1, negative: 5, negative conditional: 0, negative unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 6, positive: 1, positive conditional: 0, positive unconditional: 1, negative: 5, negative conditional: 0, negative unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 6, positive: 1, positive conditional: 0, positive unconditional: 1, negative: 5, negative conditional: 0, negative unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 5, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 5, negative conditional: 0, negative unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 127, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 127, negative conditional: 0, negative unconditional: 127, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 99, positive: 70, positive conditional: 0, positive unconditional: 70, negative: 23, negative conditional: 0, negative unconditional: 23, unknown: 6, unknown conditional: 0, unknown unconditional: 6] , Statistics on independence cache: Total cache size (in pairs): 88, Positive cache size: 68, Positive conditional cache size: 0, Positive unconditional cache size: 68, Negative cache size: 20, Negative conditional cache size: 0, Negative unconditional cache size: 20 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 26.5ms, 26 PlacesBefore, 26 PlacesAfterwards, 19 TransitionsBefore, 19 TransitionsAfterwards, 102 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 115 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 50, positive: 37, positive conditional: 0, positive unconditional: 37, negative: 13, negative conditional: 0, negative unconditional: 13, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 4, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 2, negative conditional: 0, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 4, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 2, negative conditional: 0, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 4, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 2, negative conditional: 0, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 2, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 2, negative conditional: 0, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 21, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 21, negative conditional: 0, negative unconditional: 21, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 50, positive: 35, positive conditional: 0, positive unconditional: 35, negative: 11, negative conditional: 0, negative unconditional: 11, unknown: 4, unknown conditional: 0, unknown unconditional: 4] , Statistics on independence cache: Total cache size (in pairs): 92, Positive cache size: 70, Positive conditional cache size: 0, Positive unconditional cache size: 70, Negative cache size: 22, Negative conditional cache size: 0, Negative unconditional cache size: 22 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 9.7ms, 33 PlacesBefore, 33 PlacesAfterwards, 23 TransitionsBefore, 23 TransitionsAfterwards, 106 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 91 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 37, positive: 28, positive conditional: 0, positive unconditional: 28, negative: 9, negative conditional: 0, negative unconditional: 9, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 37, positive: 28, positive conditional: 0, positive unconditional: 28, negative: 9, negative conditional: 0, negative unconditional: 9, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 92, Positive cache size: 70, Positive conditional cache size: 0, Positive unconditional cache size: 70, Negative cache size: 22, Negative conditional cache size: 0, Negative unconditional cache size: 22 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 3418.1ms, 41 PlacesBefore, 38 PlacesAfterwards, 24 TransitionsBefore, 20 TransitionsAfterwards, 80 CoEnabledTransitionPairs, 3 FixpointIterations, 1 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 1 TrivialYvCompositions, 2 ConcurrentYvCompositions, 0 ChoiceCompositions, 4 TotalNumberOfCompositions, 164 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 59, positive: 35, positive conditional: 0, positive unconditional: 35, negative: 24, negative conditional: 0, negative unconditional: 24, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 59, positive: 35, positive conditional: 0, positive unconditional: 35, negative: 24, negative conditional: 0, negative unconditional: 24, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 62, Positive cache size: 50, Positive conditional cache size: 0, Positive unconditional cache size: 50, Negative cache size: 12, Negative conditional cache size: 0, Negative unconditional cache size: 12 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 1300.9ms, 32 PlacesBefore, 29 PlacesAfterwards, 17 TransitionsBefore, 15 TransitionsAfterwards, 18 CoEnabledTransitionPairs, 3 FixpointIterations, 1 TrivialSequentialCompositions, 4 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 5 TotalNumberOfCompositions, 27 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 21, positive: 15, positive conditional: 0, positive unconditional: 15, negative: 6, negative conditional: 0, negative unconditional: 6, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 1, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 1, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 1, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 1, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 15, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 15, negative conditional: 0, negative unconditional: 15, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 21, positive: 15, positive conditional: 0, positive unconditional: 15, negative: 5, negative conditional: 0, negative unconditional: 5, unknown: 1, unknown conditional: 0, unknown unconditional: 1] , Statistics on independence cache: Total cache size (in pairs): 29, Positive cache size: 26, Positive conditional cache size: 0, Positive unconditional cache size: 26, Negative cache size: 3, Negative conditional cache size: 0, Negative unconditional cache size: 3 - CounterExampleResult [Line: 18]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L708] 0 int __unbuffered_cnt = 0; [L710] 0 int __unbuffered_p1_EAX = 0; [L712] 0 int __unbuffered_p1_EBX = 0; [L713] 0 _Bool main$tmp_guard0; [L714] 0 _Bool main$tmp_guard1; [L716] 0 int x = 0; [L718] 0 int y = 0; [L719] 0 _Bool y$flush_delayed; [L720] 0 int y$mem_tmp; [L721] 0 _Bool y$r_buff0_thd0; [L722] 0 _Bool y$r_buff0_thd1; [L723] 0 _Bool y$r_buff0_thd2; [L724] 0 _Bool y$r_buff1_thd0; [L725] 0 _Bool y$r_buff1_thd1; [L726] 0 _Bool y$r_buff1_thd2; [L727] 0 _Bool y$read_delayed; [L728] 0 int *y$read_delayed_var; [L729] 0 int y$w_buff0; [L730] 0 _Bool y$w_buff0_used; [L731] 0 int y$w_buff1; [L732] 0 _Bool y$w_buff1_used; [L734] 0 int z = 0; [L735] 0 _Bool weak$$choice0; [L736] 0 _Bool weak$$choice2; [L802] 0 pthread_t t1611; [L803] FCALL, FORK 0 pthread_create(&t1611, ((void *)0), P0, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=0, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, z=0] [L804] 0 pthread_t t1612; [L805] FCALL, FORK 0 pthread_create(&t1612, ((void *)0), P1, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=0, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, z=0] [L760] 2 y$w_buff1 = y$w_buff0 [L761] 2 y$w_buff0 = 2 [L762] 2 y$w_buff1_used = y$w_buff0_used [L763] 2 y$w_buff0_used = (_Bool)1 [L18] COND FALSE 2 !(!expression) [L765] 2 y$r_buff1_thd0 = y$r_buff0_thd0 [L766] 2 y$r_buff1_thd1 = y$r_buff0_thd1 [L767] 2 y$r_buff1_thd2 = y$r_buff0_thd2 [L768] 2 y$r_buff0_thd2 = (_Bool)1 VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=1, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=2, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0, z=0] [L771] 2 z = 1 [L774] 2 __unbuffered_p1_EAX = z [L777] 2 __unbuffered_p1_EBX = x VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=1, __unbuffered_p1_EBX=0, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=1, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=2, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0, z=1] [L740] 1 x = 1 VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=1, __unbuffered_p1_EBX=0, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=1, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=1, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=2, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0, z=1] [L743] 1 y = 1 VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=1, __unbuffered_p1_EBX=0, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=1, y=1, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=1, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=2, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0, z=1] [L746] EXPR 1 y$w_buff0_used && y$r_buff0_thd1 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd1 ? y$w_buff1 : y) [L746] EXPR 1 y$w_buff1_used && y$r_buff1_thd1 ? y$w_buff1 : y [L746] EXPR 1 y$w_buff0_used && y$r_buff0_thd1 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd1 ? y$w_buff1 : y) [L746] 1 y = y$w_buff0_used && y$r_buff0_thd1 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd1 ? y$w_buff1 : y) [L747] EXPR 1 y$w_buff0_used && y$r_buff0_thd1 ? (_Bool)0 : y$w_buff0_used [L747] 1 y$w_buff0_used = y$w_buff0_used && y$r_buff0_thd1 ? (_Bool)0 : y$w_buff0_used [L748] EXPR 1 y$w_buff0_used && y$r_buff0_thd1 || y$w_buff1_used && y$r_buff1_thd1 ? (_Bool)0 : y$w_buff1_used [L748] 1 y$w_buff1_used = y$w_buff0_used && y$r_buff0_thd1 || y$w_buff1_used && y$r_buff1_thd1 ? (_Bool)0 : y$w_buff1_used [L749] EXPR 1 y$w_buff0_used && y$r_buff0_thd1 ? (_Bool)0 : y$r_buff0_thd1 [L749] 1 y$r_buff0_thd1 = y$w_buff0_used && y$r_buff0_thd1 ? (_Bool)0 : y$r_buff0_thd1 [L750] EXPR 1 y$w_buff0_used && y$r_buff0_thd1 || y$w_buff1_used && y$r_buff1_thd1 ? (_Bool)0 : y$r_buff1_thd1 [L750] 1 y$r_buff1_thd1 = y$w_buff0_used && y$r_buff0_thd1 || y$w_buff1_used && y$r_buff1_thd1 ? (_Bool)0 : y$r_buff1_thd1 [L753] 1 __unbuffered_cnt = __unbuffered_cnt + 1 [L755] 1 return 0; [L780] EXPR 2 y$w_buff0_used && y$r_buff0_thd2 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd2 ? y$w_buff1 : y) [L780] 2 y = y$w_buff0_used && y$r_buff0_thd2 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd2 ? y$w_buff1 : y) [L781] EXPR 2 y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : y$w_buff0_used [L781] 2 y$w_buff0_used = y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : y$w_buff0_used [L782] EXPR 2 y$w_buff0_used && y$r_buff0_thd2 || y$w_buff1_used && y$r_buff1_thd2 ? (_Bool)0 : y$w_buff1_used [L782] 2 y$w_buff1_used = y$w_buff0_used && y$r_buff0_thd2 || y$w_buff1_used && y$r_buff1_thd2 ? (_Bool)0 : y$w_buff1_used [L783] EXPR 2 y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : y$r_buff0_thd2 [L783] 2 y$r_buff0_thd2 = y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : y$r_buff0_thd2 [L784] EXPR 2 y$w_buff0_used && y$r_buff0_thd2 || y$w_buff1_used && y$r_buff1_thd2 ? (_Bool)0 : y$r_buff1_thd2 [L784] 2 y$r_buff1_thd2 = y$w_buff0_used && y$r_buff0_thd2 || y$w_buff1_used && y$r_buff1_thd2 ? (_Bool)0 : y$r_buff1_thd2 [L787] 2 __unbuffered_cnt = __unbuffered_cnt + 1 [L789] 2 return 0; [L807] 0 main$tmp_guard0 = __unbuffered_cnt == 2 [L3] COND FALSE 0 !(!cond) [L811] EXPR 0 y$w_buff0_used && y$r_buff0_thd0 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd0 ? y$w_buff1 : y) [L811] EXPR 0 y$w_buff1_used && y$r_buff1_thd0 ? y$w_buff1 : y [L811] EXPR 0 y$w_buff0_used && y$r_buff0_thd0 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd0 ? y$w_buff1 : y) [L811] 0 y = y$w_buff0_used && y$r_buff0_thd0 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd0 ? y$w_buff1 : y) [L812] EXPR 0 y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$w_buff0_used [L812] 0 y$w_buff0_used = y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$w_buff0_used [L813] EXPR 0 y$w_buff0_used && y$r_buff0_thd0 || y$w_buff1_used && y$r_buff1_thd0 ? (_Bool)0 : y$w_buff1_used [L813] 0 y$w_buff1_used = y$w_buff0_used && y$r_buff0_thd0 || y$w_buff1_used && y$r_buff1_thd0 ? (_Bool)0 : y$w_buff1_used [L814] EXPR 0 y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$r_buff0_thd0 [L814] 0 y$r_buff0_thd0 = y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$r_buff0_thd0 [L815] EXPR 0 y$w_buff0_used && y$r_buff0_thd0 || y$w_buff1_used && y$r_buff1_thd0 ? (_Bool)0 : y$r_buff1_thd0 [L815] 0 y$r_buff1_thd0 = y$w_buff0_used && y$r_buff0_thd0 || y$w_buff1_used && y$r_buff1_thd0 ? (_Bool)0 : y$r_buff1_thd0 [L818] 0 weak$$choice0 = __VERIFIER_nondet_bool() [L819] 0 weak$$choice2 = __VERIFIER_nondet_bool() [L820] 0 y$flush_delayed = weak$$choice2 [L821] 0 y$mem_tmp = y [L822] EXPR 0 !y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y : (y$w_buff0_used && y$r_buff0_thd0 ? y$w_buff0 : y$w_buff1) [L822] 0 y = !y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y : (y$w_buff0_used && y$r_buff0_thd0 ? y$w_buff0 : y$w_buff1) [L823] EXPR 0 weak$$choice2 ? y$w_buff0 : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$w_buff0 : (y$w_buff0_used && y$r_buff0_thd0 ? y$w_buff0 : y$w_buff0)) [L823] 0 y$w_buff0 = weak$$choice2 ? y$w_buff0 : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$w_buff0 : (y$w_buff0_used && y$r_buff0_thd0 ? y$w_buff0 : y$w_buff0)) [L824] EXPR 0 weak$$choice2 ? y$w_buff1 : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$w_buff1 : (y$w_buff0_used && y$r_buff0_thd0 ? y$w_buff1 : y$w_buff1)) [L824] 0 y$w_buff1 = weak$$choice2 ? y$w_buff1 : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$w_buff1 : (y$w_buff0_used && y$r_buff0_thd0 ? y$w_buff1 : y$w_buff1)) [L825] EXPR 0 weak$$choice2 ? y$w_buff0_used : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$w_buff0_used : (y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$w_buff0_used)) [L825] 0 y$w_buff0_used = weak$$choice2 ? y$w_buff0_used : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$w_buff0_used : (y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$w_buff0_used)) [L826] EXPR 0 weak$$choice2 ? y$w_buff1_used : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$w_buff1_used : (y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : (_Bool)0)) [L826] 0 y$w_buff1_used = weak$$choice2 ? y$w_buff1_used : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$w_buff1_used : (y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : (_Bool)0)) [L827] EXPR 0 weak$$choice2 ? y$r_buff0_thd0 : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$r_buff0_thd0 : (y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$r_buff0_thd0)) [L827] 0 y$r_buff0_thd0 = weak$$choice2 ? y$r_buff0_thd0 : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$r_buff0_thd0 : (y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$r_buff0_thd0)) [L828] EXPR 0 weak$$choice2 ? y$r_buff1_thd0 : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$r_buff1_thd0 : (y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : (_Bool)0)) [L828] 0 y$r_buff1_thd0 = weak$$choice2 ? y$r_buff1_thd0 : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$r_buff1_thd0 : (y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : (_Bool)0)) [L829] 0 main$tmp_guard1 = !(y == 2 && __unbuffered_p1_EAX == 1 && __unbuffered_p1_EBX == 0) [L830] EXPR 0 y$flush_delayed ? y$mem_tmp : y [L830] 0 y = y$flush_delayed ? y$mem_tmp : y [L831] 0 y$flush_delayed = (_Bool)0 [L18] COND TRUE 0 !expression [L18] 0 reach_error() VAL [\result={0:0}, __unbuffered_cnt=2, __unbuffered_p1_EAX=1, __unbuffered_p1_EBX=0, arg={0:0}, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, weak$$choice0=51, weak$$choice2=255, x=1, y=2, y$flush_delayed=0, y$mem_tmp=2, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=1, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=2, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, z=1] - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 83 locations, 2 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 3.6ms, RemoveRedundantFlowTime: 0.0ms, RemoveRedundantFlowUnfoldingTime: 0.0ms, BackfoldingTime: 0.0ms, BackfoldingUnfoldingTime: 0.0ms, FlowIncreaseByBackfolding: 0, BasicCegarLoop: VerificationResult: UNSAFE, OverallTime: 18405.6ms, OverallIterations: 7, TraceHistogramMax: 1, EmptinessCheckTime: 0.0ms, AutomataDifference: 383.8ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 5994.2ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 20 SDtfs, 10 SDslu, 7 SDs, 0 SdLazy, 62 SolverSat, 23 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 93.8ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 25 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 93.3ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=134occurred in iteration=5, InterpolantAutomatonStates: 28, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 32.1ms SsaConstructionTime, 352.3ms SatisfiabilityAnalysisTime, 343.9ms InterpolantComputationTime, 89 NumberOfCodeBlocks, 89 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 70 ConstructedInterpolants, 0 QuantifiedInterpolants, 262 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...