/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-RepeatedSemanticLbeWithPredicates.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-wmm/podwr001_power.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-6f4246e9f5583d222ebb38ff8175c901f3a528f0-6f4246e [2021-04-28 22:52:00,503 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-04-28 22:52:00,506 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-04-28 22:52:00,542 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-04-28 22:52:00,542 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-04-28 22:52:00,544 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-04-28 22:52:00,546 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-04-28 22:52:00,548 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-04-28 22:52:00,550 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-04-28 22:52:00,552 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-04-28 22:52:00,553 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-04-28 22:52:00,555 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-04-28 22:52:00,555 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-04-28 22:52:00,556 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-04-28 22:52:00,558 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-04-28 22:52:00,559 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-04-28 22:52:00,560 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-04-28 22:52:00,561 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-04-28 22:52:00,563 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-04-28 22:52:00,566 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-04-28 22:52:00,576 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-04-28 22:52:00,578 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-04-28 22:52:00,580 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-04-28 22:52:00,581 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-04-28 22:52:00,588 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-04-28 22:52:00,595 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-04-28 22:52:00,599 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-04-28 22:52:00,600 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-04-28 22:52:00,601 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-04-28 22:52:00,606 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-04-28 22:52:00,606 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-04-28 22:52:00,608 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-04-28 22:52:00,608 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-04-28 22:52:00,608 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-04-28 22:52:00,609 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-04-28 22:52:00,611 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-04-28 22:52:00,612 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-RepeatedSemanticLbeWithPredicates.epf [2021-04-28 22:52:00,670 INFO L113 SettingsManager]: Loading preferences was successful [2021-04-28 22:52:00,671 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-04-28 22:52:00,674 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-04-28 22:52:00,674 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-04-28 22:52:00,674 INFO L138 SettingsManager]: * Use SBE=true [2021-04-28 22:52:00,675 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-04-28 22:52:00,675 INFO L138 SettingsManager]: * sizeof long=4 [2021-04-28 22:52:00,676 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-04-28 22:52:00,676 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-04-28 22:52:00,676 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-04-28 22:52:00,677 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-04-28 22:52:00,677 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-04-28 22:52:00,678 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-04-28 22:52:00,678 INFO L138 SettingsManager]: * sizeof long double=12 [2021-04-28 22:52:00,678 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-04-28 22:52:00,678 INFO L138 SettingsManager]: * Use constant arrays=true [2021-04-28 22:52:00,678 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-04-28 22:52:00,679 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-04-28 22:52:00,679 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-04-28 22:52:00,679 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-04-28 22:52:00,679 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-04-28 22:52:00,680 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-04-28 22:52:00,680 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-04-28 22:52:00,680 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-04-28 22:52:00,680 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-04-28 22:52:00,680 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-04-28 22:52:00,681 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-04-28 22:52:00,681 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=SEMANTIC_BASED_MOVER_CHECK_WITH_PREDICATES [2021-04-28 22:52:00,681 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-04-28 22:52:00,681 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-04-28 22:52:00,682 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-04-28 22:52:01,124 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-04-28 22:52:01,152 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-04-28 22:52:01,155 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-04-28 22:52:01,156 INFO L271 PluginConnector]: Initializing CDTParser... [2021-04-28 22:52:01,157 INFO L275 PluginConnector]: CDTParser initialized [2021-04-28 22:52:01,158 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/podwr001_power.oepc.i [2021-04-28 22:52:01,253 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/91ae91a75/1b592165d1444e49bc3e8bae99bd4f07/FLAG23e0e5494 [2021-04-28 22:52:02,053 INFO L306 CDTParser]: Found 1 translation units. [2021-04-28 22:52:02,053 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/podwr001_power.oepc.i [2021-04-28 22:52:02,078 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/91ae91a75/1b592165d1444e49bc3e8bae99bd4f07/FLAG23e0e5494 [2021-04-28 22:52:02,309 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/91ae91a75/1b592165d1444e49bc3e8bae99bd4f07 [2021-04-28 22:52:02,312 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-04-28 22:52:02,365 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-04-28 22:52:02,367 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-04-28 22:52:02,367 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-04-28 22:52:02,371 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-04-28 22:52:02,372 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.04 10:52:02" (1/1) ... [2021-04-28 22:52:02,374 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6de5ebb8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 10:52:02, skipping insertion in model container [2021-04-28 22:52:02,374 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.04 10:52:02" (1/1) ... [2021-04-28 22:52:02,382 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-04-28 22:52:02,430 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-04-28 22:52:02,610 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/podwr001_power.oepc.i[953,966] [2021-04-28 22:52:02,940 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-04-28 22:52:02,957 INFO L203 MainTranslator]: Completed pre-run [2021-04-28 22:52:02,985 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/podwr001_power.oepc.i[953,966] [2021-04-28 22:52:03,106 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-04-28 22:52:03,229 INFO L208 MainTranslator]: Completed translation [2021-04-28 22:52:03,229 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 10:52:03 WrapperNode [2021-04-28 22:52:03,230 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-04-28 22:52:03,231 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-04-28 22:52:03,231 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-04-28 22:52:03,231 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-04-28 22:52:03,240 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 10:52:03" (1/1) ... [2021-04-28 22:52:03,261 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 10:52:03" (1/1) ... [2021-04-28 22:52:03,291 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-04-28 22:52:03,292 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-04-28 22:52:03,293 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-04-28 22:52:03,293 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-04-28 22:52:03,303 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 10:52:03" (1/1) ... [2021-04-28 22:52:03,303 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 10:52:03" (1/1) ... [2021-04-28 22:52:03,308 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 10:52:03" (1/1) ... [2021-04-28 22:52:03,309 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 10:52:03" (1/1) ... [2021-04-28 22:52:03,323 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 10:52:03" (1/1) ... [2021-04-28 22:52:03,328 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 10:52:03" (1/1) ... [2021-04-28 22:52:03,333 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 10:52:03" (1/1) ... [2021-04-28 22:52:03,339 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-04-28 22:52:03,340 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-04-28 22:52:03,341 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-04-28 22:52:03,341 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-04-28 22:52:03,342 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 10:52:03" (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 [2021-04-28 22:52:03,442 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-04-28 22:52:03,442 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-04-28 22:52:03,443 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-04-28 22:52:03,443 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-04-28 22:52:03,443 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2021-04-28 22:52:03,443 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2021-04-28 22:52:03,443 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2021-04-28 22:52:03,443 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2021-04-28 22:52:03,444 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2021-04-28 22:52:03,444 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2021-04-28 22:52:03,444 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-04-28 22:52:03,444 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-04-28 22:52:03,444 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-04-28 22:52:03,444 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-04-28 22:52:03,446 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-04-28 22:52:06,220 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-04-28 22:52:06,220 INFO L299 CfgBuilder]: Removed 10 assume(true) statements. [2021-04-28 22:52:06,222 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.04 10:52:06 BoogieIcfgContainer [2021-04-28 22:52:06,223 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-04-28 22:52:06,225 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-04-28 22:52:06,225 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-04-28 22:52:06,229 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-04-28 22:52:06,229 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.04 10:52:02" (1/3) ... [2021-04-28 22:52:06,230 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@61fbf82d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.04 10:52:06, skipping insertion in model container [2021-04-28 22:52:06,230 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 10:52:03" (2/3) ... [2021-04-28 22:52:06,231 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@61fbf82d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.04 10:52:06, skipping insertion in model container [2021-04-28 22:52:06,231 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.04 10:52:06" (3/3) ... [2021-04-28 22:52:06,233 INFO L111 eAbstractionObserver]: Analyzing ICFG podwr001_power.oepc.i [2021-04-28 22:52:06,241 INFO L149 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-04-28 22:52:06,247 INFO L161 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2021-04-28 22:52:06,248 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-04-28 22:52:06,292 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:52:06,292 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:52:06,292 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:52:06,292 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:52:06,293 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:52:06,293 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:52:06,293 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:52:06,293 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:52:06,294 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:52:06,294 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:52:06,294 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:52:06,294 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:52:06,295 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:52:06,295 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:52:06,295 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:52:06,295 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:52:06,296 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:52:06,296 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:52:06,296 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:52:06,296 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:52:06,297 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:52:06,297 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:52:06,297 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:52:06,298 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:52:06,298 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:52:06,298 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:52:06,298 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:52:06,298 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:52:06,298 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:52:06,299 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:52:06,299 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:52:06,300 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:52:06,300 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:52:06,300 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:52:06,301 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:52:06,301 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:52:06,301 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:52:06,301 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:52:06,301 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:52:06,302 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:52:06,302 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:52:06,302 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:52:06,302 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:52:06,303 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:52:06,303 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:52:06,303 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:52:06,303 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:52:06,303 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:52:06,304 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:52:06,304 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:52:06,304 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:52:06,305 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:52:06,305 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:52:06,305 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:52:06,305 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:52:06,305 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:52:06,306 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:52:06,306 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:52:06,307 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:52:06,307 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:52:06,307 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:52:06,307 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:52:06,308 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:52:06,308 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:52:06,308 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:52:06,308 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:52:06,308 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:52:06,308 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:52:06,309 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:52:06,309 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:52:06,309 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:52:06,309 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:52:06,309 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite24| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:52:06,310 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:52:06,310 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:52:06,310 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:52:06,310 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite25| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:52:06,310 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite28| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:52:06,311 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite27| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:52:06,311 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~nondet17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:52:06,311 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:52:06,311 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~nondet18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:52:06,311 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:52:06,311 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite29| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:52:06,312 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:52:06,312 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:52:06,312 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:52:06,312 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:52:06,312 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:52:06,313 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:52:06,313 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:52:06,313 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite38| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:52:06,313 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:52:06,313 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:52:06,313 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:52:06,314 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:52:06,314 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:52:06,314 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite24| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:52:06,314 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite23| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:52:06,314 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite26| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:52:06,315 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite25| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:52:06,315 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite28| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:52:06,315 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite27| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:52:06,315 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~nondet17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:52:06,315 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:52:06,316 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~nondet18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:52:06,318 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:52:06,318 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:52:06,318 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:52:06,318 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:52:06,319 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite24| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:52:06,319 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:52:06,319 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:52:06,319 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:52:06,319 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite25| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:52:06,320 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite28| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:52:06,320 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite27| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:52:06,320 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~nondet17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:52:06,320 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:52:06,320 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~nondet18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:52:06,321 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:52:06,321 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite29| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:52:06,321 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:52:06,321 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:52:06,321 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:52:06,321 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:52:06,322 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:52:06,322 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:52:06,322 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:52:06,322 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite38| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:52:06,322 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:52:06,322 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:52:06,322 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:52:06,323 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:52:06,323 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:52:06,323 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite24| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:52:06,323 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite23| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:52:06,323 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite26| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:52:06,324 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite25| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:52:06,324 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite28| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:52:06,324 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite27| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:52:06,324 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~nondet17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:52:06,324 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:52:06,324 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~nondet18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:52:06,327 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite40| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:52:06,327 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite45| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:52:06,328 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite43| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:52:06,328 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite44| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:52:06,328 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite41| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:52:06,328 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite42| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:52:06,328 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite40| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:52:06,329 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite40| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:52:06,329 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite45| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:52:06,329 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite43| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:52:06,329 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite44| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:52:06,330 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite41| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:52:06,330 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite42| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:52:06,330 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite40| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:52:06,331 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:52:06,331 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:52:06,331 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:52:06,331 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:52:06,334 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:52:06,334 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:52:06,334 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:52:06,334 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:52:06,335 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:52:06,335 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:52:06,335 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:52:06,335 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:52:06,335 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:52:06,336 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:52:06,338 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite41| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:52:06,338 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite40| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:52:06,339 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite24| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:52:06,339 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite25| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:52:06,339 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite26| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:52:06,339 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite27| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:52:06,339 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite43| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:52:06,340 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:52:06,340 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:52:06,340 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:52:06,340 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite42| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:52:06,340 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:52:06,341 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite45| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:52:06,341 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite23| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:52:06,341 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite44| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:52:06,341 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite28| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:52:06,341 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite29| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:52:06,342 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:52:06,342 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:52:06,342 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:52:06,342 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:52:06,342 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~nondet18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:52:06,343 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~nondet17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:52:06,343 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:52:06,343 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:52:06,343 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite38| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:52:06,343 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:52:06,344 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:52:06,344 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:52:06,344 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:52:06,344 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:52:06,344 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:52:06,345 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:52:06,347 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:52:06,347 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:52:06,347 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:52:06,347 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:52:06,348 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:52:06,348 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:52:06,348 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:52:06,348 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:52:06,348 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:52:06,349 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:52:06,349 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:52:06,349 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:52:06,351 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-04-28 22:52:06,375 INFO L253 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2021-04-28 22:52:06,401 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-04-28 22:52:06,401 INFO L377 AbstractCegarLoop]: Hoare is false [2021-04-28 22:52:06,401 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-04-28 22:52:06,401 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-04-28 22:52:06,401 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-04-28 22:52:06,401 INFO L381 AbstractCegarLoop]: Difference is false [2021-04-28 22:52:06,402 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-04-28 22:52:06,402 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-04-28 22:52:06,415 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 107 places, 99 transitions, 213 flow [2021-04-28 22:52:06,463 INFO L129 PetriNetUnfolder]: 2/96 cut-off events. [2021-04-28 22:52:06,463 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-28 22:52:06,468 INFO L84 FinitePrefix]: Finished finitePrefix Result has 106 conditions, 96 events. 2/96 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 65 event pairs, 0 based on Foata normal form. 0/92 useless extension candidates. Maximal degree in co-relation 61. Up to 2 conditions per place. [2021-04-28 22:52:06,468 INFO L82 GeneralOperation]: Start removeDead. Operand has 107 places, 99 transitions, 213 flow [2021-04-28 22:52:06,474 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 104 places, 96 transitions, 201 flow [2021-04-28 22:52:06,480 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 22:52:06,496 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 104 places, 96 transitions, 201 flow [2021-04-28 22:52:06,500 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 104 places, 96 transitions, 201 flow [2021-04-28 22:52:06,503 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 104 places, 96 transitions, 201 flow [2021-04-28 22:52:06,528 INFO L129 PetriNetUnfolder]: 2/96 cut-off events. [2021-04-28 22:52:06,528 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-28 22:52:06,529 INFO L84 FinitePrefix]: Finished finitePrefix Result has 106 conditions, 96 events. 2/96 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 66 event pairs, 0 based on Foata normal form. 0/92 useless extension candidates. Maximal degree in co-relation 61. Up to 2 conditions per place. [2021-04-28 22:52:06,533 INFO L146 LiptonReduction]: Number of co-enabled transitions 1694 [2021-04-28 22:52:10,276 WARN L205 SmtUtils]: Spent 306.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 60 [2021-04-28 22:52:10,393 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 59 [2021-04-28 22:52:10,979 WARN L205 SmtUtils]: Spent 582.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 86 [2021-04-28 22:52:11,189 WARN L205 SmtUtils]: Spent 206.00 ms on a formula simplification that was a NOOP. DAG size: 83 [2021-04-28 22:52:12,165 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 45 [2021-04-28 22:52:24,600 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 70 [2021-04-28 22:52:24,712 WARN L205 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 70 [2021-04-28 22:52:24,817 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 70 [2021-04-28 22:52:24,922 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 70 [2021-04-28 22:52:25,038 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 72 [2021-04-28 22:52:25,151 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 72 [2021-04-28 22:52:25,260 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 72 [2021-04-28 22:52:25,367 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 72 [2021-04-28 22:52:25,486 WARN L205 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 74 [2021-04-28 22:52:25,603 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 74 [2021-04-28 22:52:25,720 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 74 [2021-04-28 22:52:25,840 WARN L205 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 74 [2021-04-28 22:52:26,407 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 62 [2021-04-28 22:52:26,786 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 68 [2021-04-28 22:52:26,888 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 68 [2021-04-28 22:52:26,993 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 68 [2021-04-28 22:52:27,868 WARN L205 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 76 [2021-04-28 22:52:27,991 WARN L205 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 76 [2021-04-28 22:52:28,116 WARN L205 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 76 [2021-04-28 22:52:28,238 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 76 [2021-04-28 22:52:28,364 WARN L205 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 78 [2021-04-28 22:52:28,493 WARN L205 SmtUtils]: Spent 128.00 ms on a formula simplification that was a NOOP. DAG size: 78 [2021-04-28 22:52:28,626 WARN L205 SmtUtils]: Spent 131.00 ms on a formula simplification that was a NOOP. DAG size: 78 [2021-04-28 22:52:28,758 WARN L205 SmtUtils]: Spent 131.00 ms on a formula simplification that was a NOOP. DAG size: 78 [2021-04-28 22:52:28,862 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 70 [2021-04-28 22:52:28,970 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 70 [2021-04-28 22:52:29,079 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 70 [2021-04-28 22:52:29,191 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 70 [2021-04-28 22:52:29,293 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 66 [2021-04-28 22:52:29,425 WARN L205 SmtUtils]: Spent 130.00 ms on a formula simplification that was a NOOP. DAG size: 66 [2021-04-28 22:52:29,526 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 66 [2021-04-28 22:52:29,629 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 66 [2021-04-28 22:52:29,786 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 82 [2021-04-28 22:52:29,928 WARN L205 SmtUtils]: Spent 141.00 ms on a formula simplification that was a NOOP. DAG size: 82 [2021-04-28 22:52:30,072 WARN L205 SmtUtils]: Spent 142.00 ms on a formula simplification that was a NOOP. DAG size: 82 [2021-04-28 22:52:30,213 WARN L205 SmtUtils]: Spent 140.00 ms on a formula simplification that was a NOOP. DAG size: 82 [2021-04-28 22:52:30,400 WARN L205 SmtUtils]: Spent 185.00 ms on a formula simplification that was a NOOP. DAG size: 96 [2021-04-28 22:52:30,581 WARN L205 SmtUtils]: Spent 180.00 ms on a formula simplification that was a NOOP. DAG size: 96 [2021-04-28 22:52:30,767 WARN L205 SmtUtils]: Spent 184.00 ms on a formula simplification that was a NOOP. DAG size: 96 [2021-04-28 22:52:30,954 WARN L205 SmtUtils]: Spent 187.00 ms on a formula simplification that was a NOOP. DAG size: 96 [2021-04-28 22:52:31,145 WARN L205 SmtUtils]: Spent 188.00 ms on a formula simplification that was a NOOP. DAG size: 98 [2021-04-28 22:52:31,333 WARN L205 SmtUtils]: Spent 186.00 ms on a formula simplification that was a NOOP. DAG size: 98 [2021-04-28 22:52:31,531 WARN L205 SmtUtils]: Spent 197.00 ms on a formula simplification that was a NOOP. DAG size: 98 [2021-04-28 22:52:31,720 WARN L205 SmtUtils]: Spent 188.00 ms on a formula simplification that was a NOOP. DAG size: 98 [2021-04-28 22:52:31,885 WARN L205 SmtUtils]: Spent 163.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2021-04-28 22:52:32,050 WARN L205 SmtUtils]: Spent 164.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2021-04-28 22:52:32,253 WARN L205 SmtUtils]: Spent 201.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2021-04-28 22:52:32,423 WARN L205 SmtUtils]: Spent 166.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2021-04-28 22:52:32,586 WARN L205 SmtUtils]: Spent 161.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2021-04-28 22:52:32,750 WARN L205 SmtUtils]: Spent 163.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2021-04-28 22:52:32,913 WARN L205 SmtUtils]: Spent 161.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2021-04-28 22:52:33,065 WARN L205 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2021-04-28 22:52:33,548 WARN L205 SmtUtils]: Spent 480.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 116 [2021-04-28 22:52:33,776 WARN L205 SmtUtils]: Spent 227.00 ms on a formula simplification that was a NOOP. DAG size: 112 [2021-04-28 22:52:34,268 WARN L205 SmtUtils]: Spent 490.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 116 [2021-04-28 22:52:34,505 WARN L205 SmtUtils]: Spent 235.00 ms on a formula simplification that was a NOOP. DAG size: 112 [2021-04-28 22:52:34,646 WARN L205 SmtUtils]: Spent 139.00 ms on a formula simplification that was a NOOP. DAG size: 80 [2021-04-28 22:52:34,780 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification that was a NOOP. DAG size: 80 [2021-04-28 22:52:34,916 WARN L205 SmtUtils]: Spent 135.00 ms on a formula simplification that was a NOOP. DAG size: 80 [2021-04-28 22:52:35,089 WARN L205 SmtUtils]: Spent 171.00 ms on a formula simplification that was a NOOP. DAG size: 80 [2021-04-28 22:52:35,272 WARN L205 SmtUtils]: Spent 181.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2021-04-28 22:52:35,454 WARN L205 SmtUtils]: Spent 181.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2021-04-28 22:52:35,637 WARN L205 SmtUtils]: Spent 181.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2021-04-28 22:52:35,826 WARN L205 SmtUtils]: Spent 188.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2021-04-28 22:52:36,342 WARN L205 SmtUtils]: Spent 515.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 111 [2021-04-28 22:52:36,562 WARN L205 SmtUtils]: Spent 217.00 ms on a formula simplification that was a NOOP. DAG size: 107 [2021-04-28 22:52:37,041 WARN L205 SmtUtils]: Spent 477.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 111 [2021-04-28 22:52:37,264 WARN L205 SmtUtils]: Spent 222.00 ms on a formula simplification that was a NOOP. DAG size: 107 [2021-04-28 22:52:37,423 WARN L205 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 86 [2021-04-28 22:52:37,580 WARN L205 SmtUtils]: Spent 155.00 ms on a formula simplification that was a NOOP. DAG size: 86 [2021-04-28 22:52:37,734 WARN L205 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 86 [2021-04-28 22:52:37,889 WARN L205 SmtUtils]: Spent 154.00 ms on a formula simplification that was a NOOP. DAG size: 86 [2021-04-28 22:52:38,073 WARN L205 SmtUtils]: Spent 182.00 ms on a formula simplification that was a NOOP. DAG size: 94 [2021-04-28 22:52:38,252 WARN L205 SmtUtils]: Spent 178.00 ms on a formula simplification that was a NOOP. DAG size: 94 [2021-04-28 22:52:38,433 WARN L205 SmtUtils]: Spent 179.00 ms on a formula simplification that was a NOOP. DAG size: 94 [2021-04-28 22:52:38,611 WARN L205 SmtUtils]: Spent 177.00 ms on a formula simplification that was a NOOP. DAG size: 94 [2021-04-28 22:52:38,835 WARN L205 SmtUtils]: Spent 222.00 ms on a formula simplification that was a NOOP. DAG size: 98 [2021-04-28 22:52:39,027 WARN L205 SmtUtils]: Spent 191.00 ms on a formula simplification that was a NOOP. DAG size: 98 [2021-04-28 22:52:39,219 WARN L205 SmtUtils]: Spent 190.00 ms on a formula simplification that was a NOOP. DAG size: 98 [2021-04-28 22:52:39,417 WARN L205 SmtUtils]: Spent 197.00 ms on a formula simplification that was a NOOP. DAG size: 98 [2021-04-28 22:52:39,612 WARN L205 SmtUtils]: Spent 192.00 ms on a formula simplification that was a NOOP. DAG size: 98 [2021-04-28 22:52:39,809 WARN L205 SmtUtils]: Spent 195.00 ms on a formula simplification that was a NOOP. DAG size: 98 [2021-04-28 22:52:40,004 WARN L205 SmtUtils]: Spent 194.00 ms on a formula simplification that was a NOOP. DAG size: 98 [2021-04-28 22:52:40,193 WARN L205 SmtUtils]: Spent 187.00 ms on a formula simplification that was a NOOP. DAG size: 98 [2021-04-28 22:52:40,357 WARN L205 SmtUtils]: Spent 162.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2021-04-28 22:52:40,522 WARN L205 SmtUtils]: Spent 163.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2021-04-28 22:52:40,683 WARN L205 SmtUtils]: Spent 159.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2021-04-28 22:52:40,840 WARN L205 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2021-04-28 22:52:41,045 WARN L205 SmtUtils]: Spent 203.00 ms on a formula simplification that was a NOOP. DAG size: 98 [2021-04-28 22:52:41,244 WARN L205 SmtUtils]: Spent 198.00 ms on a formula simplification that was a NOOP. DAG size: 98 [2021-04-28 22:52:41,433 WARN L205 SmtUtils]: Spent 187.00 ms on a formula simplification that was a NOOP. DAG size: 98 [2021-04-28 22:52:41,624 WARN L205 SmtUtils]: Spent 190.00 ms on a formula simplification that was a NOOP. DAG size: 98 [2021-04-28 22:52:41,679 INFO L158 LiptonReduction]: Checked pairs total: 15180 [2021-04-28 22:52:41,679 INFO L160 LiptonReduction]: Total number of compositions: 224 [2021-04-28 22:52:41,687 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 35212 [2021-04-28 22:52:41,721 INFO L129 PetriNetUnfolder]: 0/54 cut-off events. [2021-04-28 22:52:41,722 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-28 22:52:41,722 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 22:52:41,723 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2021-04-28 22:52:41,723 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P0Err0ASSERT_VIOLATIONERROR_FUNCTION, P0Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 22:52:41,732 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 22:52:41,732 INFO L82 PathProgramCache]: Analyzing trace with hash 1190695, now seen corresponding path program 1 times [2021-04-28 22:52:41,748 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 22:52:41,748 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1569391544] [2021-04-28 22:52:41,749 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 22:52:41,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 22:52:42,020 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 22:52:42,023 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 22:52:42,038 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 22:52:42,040 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1569391544] [2021-04-28 22:52:42,041 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 22:52:42,042 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-04-28 22:52:42,043 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1953816022] [2021-04-28 22:52:42,060 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-04-28 22:52:42,060 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 22:52:42,074 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-04-28 22:52:42,079 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-04-28 22:52:42,085 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 261 out of 323 [2021-04-28 22:52:42,093 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 127 places, 118 transitions, 245 flow. Second operand has 3 states, 3 states have (on average 261.6666666666667) internal successors, (785), 3 states have internal predecessors, (785), 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) [2021-04-28 22:52:42,094 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 22:52:42,094 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 261 of 323 [2021-04-28 22:52:42,095 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 22:52:42,309 INFO L129 PetriNetUnfolder]: 49/280 cut-off events. [2021-04-28 22:52:42,309 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-28 22:52:42,313 INFO L84 FinitePrefix]: Finished finitePrefix Result has 385 conditions, 280 events. 49/280 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 61. Compared 1817 event pairs, 38 based on Foata normal form. 35/153 useless extension candidates. Maximal degree in co-relation 319. Up to 65 conditions per place. [2021-04-28 22:52:42,318 INFO L132 encePairwiseOnDemand]: 308/323 looper letters, 9 selfloop transitions, 2 changer transitions 49/118 dead transitions. [2021-04-28 22:52:42,318 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 126 places, 118 transitions, 285 flow [2021-04-28 22:52:42,319 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-04-28 22:52:42,324 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-04-28 22:52:42,345 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 810 transitions. [2021-04-28 22:52:42,351 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8359133126934984 [2021-04-28 22:52:42,352 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 810 transitions. [2021-04-28 22:52:42,353 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 810 transitions. [2021-04-28 22:52:42,362 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 22:52:42,365 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 810 transitions. [2021-04-28 22:52:42,418 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 270.0) internal successors, (810), 3 states have internal predecessors, (810), 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) [2021-04-28 22:52:42,430 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 323.0) internal successors, (1292), 4 states have internal predecessors, (1292), 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) [2021-04-28 22:52:42,431 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 323.0) internal successors, (1292), 4 states have internal predecessors, (1292), 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) [2021-04-28 22:52:42,434 INFO L185 Difference]: Start difference. First operand has 127 places, 118 transitions, 245 flow. Second operand 3 states and 810 transitions. [2021-04-28 22:52:42,435 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 126 places, 118 transitions, 285 flow [2021-04-28 22:52:42,439 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 123 places, 118 transitions, 282 flow, removed 0 selfloop flow, removed 3 redundant places. [2021-04-28 22:52:42,450 INFO L241 Difference]: Finished difference. Result has 123 places, 65 transitions, 140 flow [2021-04-28 22:52:42,453 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=323, PETRI_DIFFERENCE_MINUEND_FLOW=234, PETRI_DIFFERENCE_MINUEND_PLACES=121, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=114, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=112, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=140, PETRI_PLACES=123, PETRI_TRANSITIONS=65} [2021-04-28 22:52:42,454 INFO L343 CegarLoopForPetriNet]: 127 programPoint places, -4 predicate places. [2021-04-28 22:52:42,454 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 22:52:42,454 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 123 places, 65 transitions, 140 flow [2021-04-28 22:52:42,456 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 123 places, 65 transitions, 140 flow [2021-04-28 22:52:42,457 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 74 places, 65 transitions, 140 flow [2021-04-28 22:52:42,469 INFO L129 PetriNetUnfolder]: 0/65 cut-off events. [2021-04-28 22:52:42,469 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-28 22:52:42,469 INFO L84 FinitePrefix]: Finished finitePrefix Result has 75 conditions, 65 events. 0/65 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 314 event pairs, 0 based on Foata normal form. 0/22 useless extension candidates. Maximal degree in co-relation 0. Up to 2 conditions per place. [2021-04-28 22:52:42,471 INFO L146 LiptonReduction]: Number of co-enabled transitions 1946 [2021-04-28 22:52:42,632 INFO L158 LiptonReduction]: Checked pairs total: 2580 [2021-04-28 22:52:42,632 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 22:52:42,632 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 178 [2021-04-28 22:52:42,640 INFO L480 AbstractCegarLoop]: Abstraction has has 74 places, 65 transitions, 140 flow [2021-04-28 22:52:42,641 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 261.6666666666667) internal successors, (785), 3 states have internal predecessors, (785), 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) [2021-04-28 22:52:42,642 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 22:52:42,642 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 22:52:42,642 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-04-28 22:52:42,642 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P0Err0ASSERT_VIOLATIONERROR_FUNCTION, P0Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 22:52:42,644 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 22:52:42,644 INFO L82 PathProgramCache]: Analyzing trace with hash 190645546, now seen corresponding path program 1 times [2021-04-28 22:52:42,644 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 22:52:42,645 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1962486992] [2021-04-28 22:52:42,645 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 22:52:42,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 22:52:42,791 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 22:52:42,791 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 22:52:42,802 INFO L142 QuantifierPusher]: treesize reduction 11, result has 54.2 percent of original size [2021-04-28 22:52:42,803 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-28 22:52:42,811 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 22:52:42,811 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-28 22:52:42,812 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 22:52:42,812 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1962486992] [2021-04-28 22:52:42,812 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 22:52:42,812 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-04-28 22:52:42,812 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [770855289] [2021-04-28 22:52:42,814 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-04-28 22:52:42,814 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 22:52:42,814 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-04-28 22:52:42,815 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-04-28 22:52:42,817 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 233 out of 323 [2021-04-28 22:52:42,818 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 74 places, 65 transitions, 140 flow. Second operand has 4 states, 4 states have (on average 233.75) internal successors, (935), 4 states have internal predecessors, (935), 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) [2021-04-28 22:52:42,818 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 22:52:42,819 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 233 of 323 [2021-04-28 22:52:42,819 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 22:52:43,387 INFO L129 PetriNetUnfolder]: 1935/4610 cut-off events. [2021-04-28 22:52:43,387 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-28 22:52:43,402 INFO L84 FinitePrefix]: Finished finitePrefix Result has 7636 conditions, 4610 events. 1935/4610 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 1134. Compared 48894 event pairs, 918 based on Foata normal form. 64/1047 useless extension candidates. Maximal degree in co-relation 7627. Up to 1936 conditions per place. [2021-04-28 22:52:43,416 INFO L132 encePairwiseOnDemand]: 306/323 looper letters, 11 selfloop transitions, 10 changer transitions 34/100 dead transitions. [2021-04-28 22:52:43,416 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 78 places, 100 transitions, 320 flow [2021-04-28 22:52:43,419 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-04-28 22:52:43,420 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-04-28 22:52:43,423 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1219 transitions. [2021-04-28 22:52:43,424 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7547987616099071 [2021-04-28 22:52:43,424 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 1219 transitions. [2021-04-28 22:52:43,424 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 1219 transitions. [2021-04-28 22:52:43,425 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 22:52:43,426 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 1219 transitions. [2021-04-28 22:52:43,430 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 243.8) internal successors, (1219), 5 states have internal predecessors, (1219), 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) [2021-04-28 22:52:43,434 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 323.0) internal successors, (1938), 6 states have internal predecessors, (1938), 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) [2021-04-28 22:52:43,436 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 323.0) internal successors, (1938), 6 states have internal predecessors, (1938), 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) [2021-04-28 22:52:43,437 INFO L185 Difference]: Start difference. First operand has 74 places, 65 transitions, 140 flow. Second operand 5 states and 1219 transitions. [2021-04-28 22:52:43,437 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 78 places, 100 transitions, 320 flow [2021-04-28 22:52:43,439 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 76 places, 100 transitions, 316 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-04-28 22:52:43,442 INFO L241 Difference]: Finished difference. Result has 79 places, 66 transitions, 210 flow [2021-04-28 22:52:43,442 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=323, PETRI_DIFFERENCE_MINUEND_FLOW=136, PETRI_DIFFERENCE_MINUEND_PLACES=72, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=65, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=55, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=210, PETRI_PLACES=79, PETRI_TRANSITIONS=66} [2021-04-28 22:52:43,443 INFO L343 CegarLoopForPetriNet]: 127 programPoint places, -48 predicate places. [2021-04-28 22:52:43,443 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 22:52:43,443 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 79 places, 66 transitions, 210 flow [2021-04-28 22:52:43,444 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 79 places, 66 transitions, 210 flow [2021-04-28 22:52:43,445 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 69 places, 66 transitions, 210 flow [2021-04-28 22:52:43,599 INFO L129 PetriNetUnfolder]: 351/1261 cut-off events. [2021-04-28 22:52:43,599 INFO L130 PetriNetUnfolder]: For 155/155 co-relation queries the response was YES. [2021-04-28 22:52:43,604 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2290 conditions, 1261 events. 351/1261 cut-off events. For 155/155 co-relation queries the response was YES. Maximal size of possible extension queue 556. Compared 13897 event pairs, 189 based on Foata normal form. 0/299 useless extension candidates. Maximal degree in co-relation 2280. Up to 478 conditions per place. [2021-04-28 22:52:43,627 INFO L146 LiptonReduction]: Number of co-enabled transitions 1730 [2021-04-28 22:52:43,742 INFO L158 LiptonReduction]: Checked pairs total: 1540 [2021-04-28 22:52:43,743 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 22:52:43,743 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 300 [2021-04-28 22:52:43,748 INFO L480 AbstractCegarLoop]: Abstraction has has 69 places, 66 transitions, 210 flow [2021-04-28 22:52:43,749 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 233.75) internal successors, (935), 4 states have internal predecessors, (935), 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) [2021-04-28 22:52:43,749 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 22:52:43,749 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 22:52:43,749 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-04-28 22:52:43,749 INFO L428 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P0Err0ASSERT_VIOLATIONERROR_FUNCTION, P0Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 22:52:43,750 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 22:52:43,750 INFO L82 PathProgramCache]: Analyzing trace with hash 44887520, now seen corresponding path program 1 times [2021-04-28 22:52:43,750 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 22:52:43,754 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2025145125] [2021-04-28 22:52:43,754 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 22:52:43,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 22:52:43,950 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 22:52:43,950 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 22:52:43,953 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 22:52:43,954 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 22:52:43,958 INFO L142 QuantifierPusher]: treesize reduction 11, result has 54.2 percent of original size [2021-04-28 22:52:43,966 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-28 22:52:43,975 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 22:52:43,975 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-28 22:52:43,976 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 22:52:43,976 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2025145125] [2021-04-28 22:52:43,976 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 22:52:43,976 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-04-28 22:52:43,977 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1672708420] [2021-04-28 22:52:43,977 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-04-28 22:52:43,977 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 22:52:43,978 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-04-28 22:52:43,978 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-04-28 22:52:43,980 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 233 out of 323 [2021-04-28 22:52:43,982 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 69 places, 66 transitions, 210 flow. Second operand has 5 states, 5 states have (on average 233.8) internal successors, (1169), 5 states have internal predecessors, (1169), 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) [2021-04-28 22:52:43,982 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 22:52:43,983 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 233 of 323 [2021-04-28 22:52:43,983 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 22:52:44,328 INFO L129 PetriNetUnfolder]: 324/1929 cut-off events. [2021-04-28 22:52:44,329 INFO L130 PetriNetUnfolder]: For 233/296 co-relation queries the response was YES. [2021-04-28 22:52:44,334 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3554 conditions, 1929 events. 324/1929 cut-off events. For 233/296 co-relation queries the response was YES. Maximal size of possible extension queue 783. Compared 24710 event pairs, 54 based on Foata normal form. 68/393 useless extension candidates. Maximal degree in co-relation 3542. Up to 505 conditions per place. [2021-04-28 22:52:44,343 INFO L132 encePairwiseOnDemand]: 311/323 looper letters, 11 selfloop transitions, 19 changer transitions 19/94 dead transitions. [2021-04-28 22:52:44,343 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 74 places, 94 transitions, 474 flow [2021-04-28 22:52:44,344 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-04-28 22:52:44,344 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-04-28 22:52:44,347 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1449 transitions. [2021-04-28 22:52:44,349 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7476780185758514 [2021-04-28 22:52:44,349 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1449 transitions. [2021-04-28 22:52:44,349 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1449 transitions. [2021-04-28 22:52:44,350 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 22:52:44,350 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1449 transitions. [2021-04-28 22:52:44,355 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 241.5) internal successors, (1449), 6 states have internal predecessors, (1449), 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) [2021-04-28 22:52:44,361 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 323.0) internal successors, (2261), 7 states have internal predecessors, (2261), 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) [2021-04-28 22:52:44,363 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 323.0) internal successors, (2261), 7 states have internal predecessors, (2261), 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) [2021-04-28 22:52:44,363 INFO L185 Difference]: Start difference. First operand has 69 places, 66 transitions, 210 flow. Second operand 6 states and 1449 transitions. [2021-04-28 22:52:44,363 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 74 places, 94 transitions, 474 flow [2021-04-28 22:52:44,371 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 72 places, 94 transitions, 462 flow, removed 1 selfloop flow, removed 2 redundant places. [2021-04-28 22:52:44,373 INFO L241 Difference]: Finished difference. Result has 75 places, 75 transitions, 350 flow [2021-04-28 22:52:44,374 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=323, PETRI_DIFFERENCE_MINUEND_FLOW=198, PETRI_DIFFERENCE_MINUEND_PLACES=67, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=66, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=47, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=350, PETRI_PLACES=75, PETRI_TRANSITIONS=75} [2021-04-28 22:52:44,374 INFO L343 CegarLoopForPetriNet]: 127 programPoint places, -52 predicate places. [2021-04-28 22:52:44,374 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 22:52:44,374 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 75 places, 75 transitions, 350 flow [2021-04-28 22:52:44,375 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 75 places, 75 transitions, 350 flow [2021-04-28 22:52:44,375 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 73 places, 75 transitions, 350 flow [2021-04-28 22:52:44,642 INFO L129 PetriNetUnfolder]: 243/1585 cut-off events. [2021-04-28 22:52:44,642 INFO L130 PetriNetUnfolder]: For 431/479 co-relation queries the response was YES. [2021-04-28 22:52:44,646 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3076 conditions, 1585 events. 243/1585 cut-off events. For 431/479 co-relation queries the response was YES. Maximal size of possible extension queue 756. Compared 20463 event pairs, 54 based on Foata normal form. 3/268 useless extension candidates. Maximal degree in co-relation 3063. Up to 361 conditions per place. [2021-04-28 22:52:44,664 INFO L146 LiptonReduction]: Number of co-enabled transitions 1748 [2021-04-28 22:52:44,690 INFO L158 LiptonReduction]: Checked pairs total: 2002 [2021-04-28 22:52:44,690 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 22:52:44,691 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 317 [2021-04-28 22:52:44,692 INFO L480 AbstractCegarLoop]: Abstraction has has 73 places, 75 transitions, 350 flow [2021-04-28 22:52:44,693 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 233.8) internal successors, (1169), 5 states have internal predecessors, (1169), 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) [2021-04-28 22:52:44,693 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 22:52:44,694 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 22:52:44,694 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-04-28 22:52:44,694 INFO L428 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P0Err0ASSERT_VIOLATIONERROR_FUNCTION, P0Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 22:52:44,694 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 22:52:44,694 INFO L82 PathProgramCache]: Analyzing trace with hash -2093451766, now seen corresponding path program 1 times [2021-04-28 22:52:44,695 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 22:52:44,695 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1362381041] [2021-04-28 22:52:44,695 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 22:52:44,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 22:52:44,818 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 22:52:44,818 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-28 22:52:44,819 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 22:52:44,819 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 22:52:44,823 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 22:52:44,823 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 22:52:44,826 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 22:52:44,827 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1362381041] [2021-04-28 22:52:44,827 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 22:52:44,827 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-04-28 22:52:44,827 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [258554069] [2021-04-28 22:52:44,828 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-04-28 22:52:44,828 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 22:52:44,828 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-04-28 22:52:44,829 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-04-28 22:52:44,831 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 227 out of 323 [2021-04-28 22:52:44,833 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 73 places, 75 transitions, 350 flow. Second operand has 4 states, 4 states have (on average 228.0) internal successors, (912), 4 states have internal predecessors, (912), 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) [2021-04-28 22:52:44,833 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 22:52:44,833 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 227 of 323 [2021-04-28 22:52:44,833 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 22:52:45,739 INFO L129 PetriNetUnfolder]: 1503/5189 cut-off events. [2021-04-28 22:52:45,739 INFO L130 PetriNetUnfolder]: For 2169/2262 co-relation queries the response was YES. [2021-04-28 22:52:45,758 INFO L84 FinitePrefix]: Finished finitePrefix Result has 14294 conditions, 5189 events. 1503/5189 cut-off events. For 2169/2262 co-relation queries the response was YES. Maximal size of possible extension queue 1494. Compared 66693 event pairs, 108 based on Foata normal form. 3/1453 useless extension candidates. Maximal degree in co-relation 14279. Up to 1802 conditions per place. [2021-04-28 22:52:45,775 INFO L132 encePairwiseOnDemand]: 318/323 looper letters, 52 selfloop transitions, 2 changer transitions 22/123 dead transitions. [2021-04-28 22:52:45,776 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 76 places, 123 transitions, 598 flow [2021-04-28 22:52:45,776 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-04-28 22:52:45,777 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-04-28 22:52:45,779 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 978 transitions. [2021-04-28 22:52:45,780 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7569659442724458 [2021-04-28 22:52:45,780 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 978 transitions. [2021-04-28 22:52:45,780 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 978 transitions. [2021-04-28 22:52:45,781 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 22:52:45,782 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 978 transitions. [2021-04-28 22:52:45,785 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 244.5) internal successors, (978), 4 states have internal predecessors, (978), 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) [2021-04-28 22:52:45,789 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 323.0) internal successors, (1615), 5 states have internal predecessors, (1615), 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) [2021-04-28 22:52:45,790 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 323.0) internal successors, (1615), 5 states have internal predecessors, (1615), 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) [2021-04-28 22:52:45,790 INFO L185 Difference]: Start difference. First operand has 73 places, 75 transitions, 350 flow. Second operand 4 states and 978 transitions. [2021-04-28 22:52:45,791 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 76 places, 123 transitions, 598 flow [2021-04-28 22:52:45,838 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 72 places, 123 transitions, 520 flow, removed 29 selfloop flow, removed 4 redundant places. [2021-04-28 22:52:45,841 INFO L241 Difference]: Finished difference. Result has 74 places, 76 transitions, 289 flow [2021-04-28 22:52:45,841 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=323, PETRI_DIFFERENCE_MINUEND_FLOW=272, PETRI_DIFFERENCE_MINUEND_PLACES=69, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=75, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=73, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=289, PETRI_PLACES=74, PETRI_TRANSITIONS=76} [2021-04-28 22:52:45,841 INFO L343 CegarLoopForPetriNet]: 127 programPoint places, -53 predicate places. [2021-04-28 22:52:45,841 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 22:52:45,842 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 74 places, 76 transitions, 289 flow [2021-04-28 22:52:45,842 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 74 places, 76 transitions, 289 flow [2021-04-28 22:52:45,843 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 74 places, 76 transitions, 289 flow [2021-04-28 22:52:46,285 INFO L129 PetriNetUnfolder]: 486/3269 cut-off events. [2021-04-28 22:52:46,285 INFO L130 PetriNetUnfolder]: For 551/568 co-relation queries the response was YES. [2021-04-28 22:52:46,293 INFO L84 FinitePrefix]: Finished finitePrefix Result has 5676 conditions, 3269 events. 486/3269 cut-off events. For 551/568 co-relation queries the response was YES. Maximal size of possible extension queue 1068. Compared 46866 event pairs, 108 based on Foata normal form. 4/661 useless extension candidates. Maximal degree in co-relation 5664. Up to 784 conditions per place. [2021-04-28 22:52:46,328 INFO L146 LiptonReduction]: Number of co-enabled transitions 1764 [2021-04-28 22:52:46,922 INFO L158 LiptonReduction]: Checked pairs total: 1855 [2021-04-28 22:52:46,922 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 22:52:46,922 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 1081 [2021-04-28 22:52:46,924 INFO L480 AbstractCegarLoop]: Abstraction has has 74 places, 76 transitions, 289 flow [2021-04-28 22:52:46,925 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 228.0) internal successors, (912), 4 states have internal predecessors, (912), 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) [2021-04-28 22:52:46,925 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 22:52:46,926 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 22:52:46,926 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-04-28 22:52:46,926 INFO L428 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P0Err0ASSERT_VIOLATIONERROR_FUNCTION, P0Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 22:52:46,926 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 22:52:46,927 INFO L82 PathProgramCache]: Analyzing trace with hash 1549263383, now seen corresponding path program 1 times [2021-04-28 22:52:46,927 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 22:52:46,927 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1509229989] [2021-04-28 22:52:46,927 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 22:52:46,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 22:52:47,004 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 22:52:47,005 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 22:52:47,009 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 22:52:47,009 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 22:52:47,014 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 22:52:47,015 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 22:52:47,022 INFO L142 QuantifierPusher]: treesize reduction 11, result has 54.2 percent of original size [2021-04-28 22:52:47,023 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-28 22:52:47,035 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 22:52:47,036 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-28 22:52:47,036 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 22:52:47,036 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1509229989] [2021-04-28 22:52:47,037 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 22:52:47,037 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-04-28 22:52:47,037 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1209590533] [2021-04-28 22:52:47,037 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-04-28 22:52:47,038 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 22:52:47,038 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-04-28 22:52:47,039 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-04-28 22:52:47,041 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 233 out of 323 [2021-04-28 22:52:47,044 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 74 places, 76 transitions, 289 flow. Second operand has 6 states, 6 states have (on average 233.83333333333334) internal successors, (1403), 6 states have internal predecessors, (1403), 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) [2021-04-28 22:52:47,045 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 22:52:47,045 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 233 of 323 [2021-04-28 22:52:47,045 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 22:52:47,387 INFO L129 PetriNetUnfolder]: 270/1904 cut-off events. [2021-04-28 22:52:47,387 INFO L130 PetriNetUnfolder]: For 307/439 co-relation queries the response was YES. [2021-04-28 22:52:47,390 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3995 conditions, 1904 events. 270/1904 cut-off events. For 307/439 co-relation queries the response was YES. Maximal size of possible extension queue 1269. Compared 25765 event pairs, 0 based on Foata normal form. 118/515 useless extension candidates. Maximal degree in co-relation 3981. Up to 541 conditions per place. [2021-04-28 22:52:47,395 INFO L132 encePairwiseOnDemand]: 311/323 looper letters, 2 selfloop transitions, 28 changer transitions 36/86 dead transitions. [2021-04-28 22:52:47,395 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 80 places, 86 transitions, 447 flow [2021-04-28 22:52:47,396 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-04-28 22:52:47,396 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-04-28 22:52:47,401 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 1673 transitions. [2021-04-28 22:52:47,402 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.739938080495356 [2021-04-28 22:52:47,402 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 1673 transitions. [2021-04-28 22:52:47,402 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 1673 transitions. [2021-04-28 22:52:47,404 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 22:52:47,404 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 1673 transitions. [2021-04-28 22:52:47,409 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 239.0) internal successors, (1673), 7 states have internal predecessors, (1673), 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) [2021-04-28 22:52:47,416 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 323.0) internal successors, (2584), 8 states have internal predecessors, (2584), 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) [2021-04-28 22:52:47,419 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 323.0) internal successors, (2584), 8 states have internal predecessors, (2584), 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) [2021-04-28 22:52:47,420 INFO L185 Difference]: Start difference. First operand has 74 places, 76 transitions, 289 flow. Second operand 7 states and 1673 transitions. [2021-04-28 22:52:47,420 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 80 places, 86 transitions, 447 flow [2021-04-28 22:52:47,433 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 79 places, 86 transitions, 410 flow, removed 18 selfloop flow, removed 1 redundant places. [2021-04-28 22:52:47,435 INFO L241 Difference]: Finished difference. Result has 82 places, 50 transitions, 290 flow [2021-04-28 22:52:47,435 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=323, PETRI_DIFFERENCE_MINUEND_FLOW=270, PETRI_DIFFERENCE_MINUEND_PLACES=73, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=76, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=28, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=48, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=290, PETRI_PLACES=82, PETRI_TRANSITIONS=50} [2021-04-28 22:52:47,435 INFO L343 CegarLoopForPetriNet]: 127 programPoint places, -45 predicate places. [2021-04-28 22:52:47,436 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 22:52:47,436 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 82 places, 50 transitions, 290 flow [2021-04-28 22:52:47,436 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 82 places, 50 transitions, 290 flow [2021-04-28 22:52:47,437 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 54 places, 50 transitions, 290 flow [2021-04-28 22:52:47,469 INFO L129 PetriNetUnfolder]: 90/269 cut-off events. [2021-04-28 22:52:47,469 INFO L130 PetriNetUnfolder]: For 199/238 co-relation queries the response was YES. [2021-04-28 22:52:47,470 INFO L84 FinitePrefix]: Finished finitePrefix Result has 983 conditions, 269 events. 90/269 cut-off events. For 199/238 co-relation queries the response was YES. Maximal size of possible extension queue 54. Compared 1585 event pairs, 0 based on Foata normal form. 1/146 useless extension candidates. Maximal degree in co-relation 967. Up to 181 conditions per place. [2021-04-28 22:52:47,473 INFO L146 LiptonReduction]: Number of co-enabled transitions 572 [2021-04-28 22:52:47,528 INFO L158 LiptonReduction]: Checked pairs total: 1589 [2021-04-28 22:52:47,528 INFO L160 LiptonReduction]: Total number of compositions: 1 [2021-04-28 22:52:47,529 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 93 [2021-04-28 22:52:47,530 INFO L480 AbstractCegarLoop]: Abstraction has has 54 places, 50 transitions, 292 flow [2021-04-28 22:52:47,531 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 233.83333333333334) internal successors, (1403), 6 states have internal predecessors, (1403), 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) [2021-04-28 22:52:47,531 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 22:52:47,531 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 22:52:47,532 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-04-28 22:52:47,532 INFO L428 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P0Err0ASSERT_VIOLATIONERROR_FUNCTION, P0Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 22:52:47,532 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 22:52:47,532 INFO L82 PathProgramCache]: Analyzing trace with hash 1002960348, now seen corresponding path program 1 times [2021-04-28 22:52:47,532 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 22:52:47,533 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [484107992] [2021-04-28 22:52:47,533 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 22:52:47,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 22:52:47,701 INFO L142 QuantifierPusher]: treesize reduction 30, result has 25.0 percent of original size [2021-04-28 22:52:47,702 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-04-28 22:52:47,713 INFO L142 QuantifierPusher]: treesize reduction 12, result has 86.8 percent of original size [2021-04-28 22:52:47,716 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 79 [2021-04-28 22:52:47,791 INFO L142 QuantifierPusher]: treesize reduction 2, result has 97.1 percent of original size [2021-04-28 22:52:47,793 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 68 [2021-04-28 22:52:47,855 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.9 percent of original size [2021-04-28 22:52:47,857 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 62 [2021-04-28 22:52:47,912 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 22:52:47,913 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 22:52:47,924 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 22:52:47,924 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [484107992] [2021-04-28 22:52:47,924 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 22:52:47,924 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-04-28 22:52:47,925 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [35891765] [2021-04-28 22:52:47,925 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-04-28 22:52:47,925 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 22:52:47,926 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-04-28 22:52:47,926 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-04-28 22:52:47,928 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 166 out of 324 [2021-04-28 22:52:47,930 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 54 places, 50 transitions, 292 flow. Second operand has 7 states, 7 states have (on average 167.14285714285714) internal successors, (1170), 7 states have internal predecessors, (1170), 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) [2021-04-28 22:52:47,930 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 22:52:47,931 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 166 of 324 [2021-04-28 22:52:47,931 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 22:52:48,338 INFO L129 PetriNetUnfolder]: 216/587 cut-off events. [2021-04-28 22:52:48,338 INFO L130 PetriNetUnfolder]: For 604/799 co-relation queries the response was YES. [2021-04-28 22:52:48,340 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2235 conditions, 587 events. 216/587 cut-off events. For 604/799 co-relation queries the response was YES. Maximal size of possible extension queue 99. Compared 4044 event pairs, 2 based on Foata normal form. 28/324 useless extension candidates. Maximal degree in co-relation 2217. Up to 397 conditions per place. [2021-04-28 22:52:48,344 INFO L132 encePairwiseOnDemand]: 318/324 looper letters, 8 selfloop transitions, 4 changer transitions 8/59 dead transitions. [2021-04-28 22:52:48,344 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 60 places, 59 transitions, 350 flow [2021-04-28 22:52:48,344 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-04-28 22:52:48,345 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-04-28 22:52:48,348 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 1180 transitions. [2021-04-28 22:52:48,349 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.5202821869488536 [2021-04-28 22:52:48,349 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 1180 transitions. [2021-04-28 22:52:48,349 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 1180 transitions. [2021-04-28 22:52:48,350 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 22:52:48,350 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 1180 transitions. [2021-04-28 22:52:48,353 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 168.57142857142858) internal successors, (1180), 7 states have internal predecessors, (1180), 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) [2021-04-28 22:52:48,357 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 324.0) internal successors, (2592), 8 states have internal predecessors, (2592), 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) [2021-04-28 22:52:48,358 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 324.0) internal successors, (2592), 8 states have internal predecessors, (2592), 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) [2021-04-28 22:52:48,359 INFO L185 Difference]: Start difference. First operand has 54 places, 50 transitions, 292 flow. Second operand 7 states and 1180 transitions. [2021-04-28 22:52:48,359 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 60 places, 59 transitions, 350 flow [2021-04-28 22:52:48,369 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 53 places, 59 transitions, 262 flow, removed 25 selfloop flow, removed 7 redundant places. [2021-04-28 22:52:48,370 INFO L241 Difference]: Finished difference. Result has 55 places, 47 transitions, 218 flow [2021-04-28 22:52:48,371 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=324, PETRI_DIFFERENCE_MINUEND_FLOW=210, PETRI_DIFFERENCE_MINUEND_PLACES=47, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=50, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=46, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=218, PETRI_PLACES=55, PETRI_TRANSITIONS=47} [2021-04-28 22:52:48,371 INFO L343 CegarLoopForPetriNet]: 127 programPoint places, -72 predicate places. [2021-04-28 22:52:48,371 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 22:52:48,371 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 55 places, 47 transitions, 218 flow [2021-04-28 22:52:48,372 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 55 places, 47 transitions, 218 flow [2021-04-28 22:52:48,372 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 50 places, 47 transitions, 218 flow [2021-04-28 22:52:48,400 INFO L129 PetriNetUnfolder]: 99/288 cut-off events. [2021-04-28 22:52:48,400 INFO L130 PetriNetUnfolder]: For 119/122 co-relation queries the response was YES. [2021-04-28 22:52:48,401 INFO L84 FinitePrefix]: Finished finitePrefix Result has 766 conditions, 288 events. 99/288 cut-off events. For 119/122 co-relation queries the response was YES. Maximal size of possible extension queue 45. Compared 1663 event pairs, 0 based on Foata normal form. 1/150 useless extension candidates. Maximal degree in co-relation 752. Up to 118 conditions per place. [2021-04-28 22:52:48,404 INFO L146 LiptonReduction]: Number of co-enabled transitions 436 [2021-04-28 22:52:48,825 WARN L205 SmtUtils]: Spent 306.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 64 [2021-04-28 22:52:48,958 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification that was a NOOP. DAG size: 63 [2021-04-28 22:52:49,589 WARN L205 SmtUtils]: Spent 628.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 93 [2021-04-28 22:52:49,845 WARN L205 SmtUtils]: Spent 255.00 ms on a formula simplification that was a NOOP. DAG size: 89 [2021-04-28 22:52:50,205 WARN L205 SmtUtils]: Spent 358.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 64 [2021-04-28 22:52:50,339 WARN L205 SmtUtils]: Spent 130.00 ms on a formula simplification that was a NOOP. DAG size: 63 [2021-04-28 22:52:50,913 WARN L205 SmtUtils]: Spent 572.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 87 [2021-04-28 22:52:51,135 WARN L205 SmtUtils]: Spent 220.00 ms on a formula simplification that was a NOOP. DAG size: 85 [2021-04-28 22:52:51,459 WARN L205 SmtUtils]: Spent 321.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 64 [2021-04-28 22:52:51,576 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 63 [2021-04-28 22:52:52,269 WARN L205 SmtUtils]: Spent 691.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 94 [2021-04-28 22:52:52,543 WARN L205 SmtUtils]: Spent 272.00 ms on a formula simplification that was a NOOP. DAG size: 91 [2021-04-28 22:52:52,860 WARN L205 SmtUtils]: Spent 314.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 60 [2021-04-28 22:52:52,988 WARN L205 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 59 [2021-04-28 22:52:53,662 WARN L205 SmtUtils]: Spent 672.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 90 [2021-04-28 22:52:53,943 WARN L205 SmtUtils]: Spent 280.00 ms on a formula simplification that was a NOOP. DAG size: 87 [2021-04-28 22:52:54,291 WARN L205 SmtUtils]: Spent 345.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 64 [2021-04-28 22:52:54,427 WARN L205 SmtUtils]: Spent 135.00 ms on a formula simplification that was a NOOP. DAG size: 63 [2021-04-28 22:52:55,059 WARN L205 SmtUtils]: Spent 630.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 87 [2021-04-28 22:52:55,298 WARN L205 SmtUtils]: Spent 237.00 ms on a formula simplification that was a NOOP. DAG size: 85 [2021-04-28 22:52:55,647 WARN L205 SmtUtils]: Spent 347.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 60 [2021-04-28 22:52:55,784 WARN L205 SmtUtils]: Spent 136.00 ms on a formula simplification that was a NOOP. DAG size: 59 [2021-04-28 22:52:56,412 WARN L205 SmtUtils]: Spent 625.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 86 [2021-04-28 22:52:56,666 WARN L205 SmtUtils]: Spent 252.00 ms on a formula simplification that was a NOOP. DAG size: 83 [2021-04-28 22:52:57,012 WARN L205 SmtUtils]: Spent 343.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 60 [2021-04-28 22:52:57,148 WARN L205 SmtUtils]: Spent 134.00 ms on a formula simplification that was a NOOP. DAG size: 59 [2021-04-28 22:52:57,792 WARN L205 SmtUtils]: Spent 642.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 83 [2021-04-28 22:52:58,042 WARN L205 SmtUtils]: Spent 248.00 ms on a formula simplification that was a NOOP. DAG size: 81 [2021-04-28 22:52:58,402 WARN L205 SmtUtils]: Spent 358.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 64 [2021-04-28 22:52:58,545 WARN L205 SmtUtils]: Spent 142.00 ms on a formula simplification that was a NOOP. DAG size: 63 [2021-04-28 22:52:59,211 WARN L205 SmtUtils]: Spent 662.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 87 [2021-04-28 22:52:59,487 WARN L205 SmtUtils]: Spent 273.00 ms on a formula simplification that was a NOOP. DAG size: 85 [2021-04-28 22:52:59,854 WARN L205 SmtUtils]: Spent 365.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 64 [2021-04-28 22:53:00,000 WARN L205 SmtUtils]: Spent 145.00 ms on a formula simplification that was a NOOP. DAG size: 63 [2021-04-28 22:53:00,725 WARN L205 SmtUtils]: Spent 722.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 94 [2021-04-28 22:53:01,029 WARN L205 SmtUtils]: Spent 303.00 ms on a formula simplification that was a NOOP. DAG size: 91 [2021-04-28 22:53:01,211 INFO L158 LiptonReduction]: Checked pairs total: 1158 [2021-04-28 22:53:01,211 INFO L160 LiptonReduction]: Total number of compositions: 9 [2021-04-28 22:53:01,211 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 12840 [2021-04-28 22:53:01,213 INFO L480 AbstractCegarLoop]: Abstraction has has 50 places, 47 transitions, 245 flow [2021-04-28 22:53:01,214 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 167.14285714285714) internal successors, (1170), 7 states have internal predecessors, (1170), 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) [2021-04-28 22:53:01,214 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 22:53:01,214 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 22:53:01,214 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-04-28 22:53:01,214 INFO L428 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P0Err0ASSERT_VIOLATIONERROR_FUNCTION, P0Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 22:53:01,214 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 22:53:01,215 INFO L82 PathProgramCache]: Analyzing trace with hash 989025325, now seen corresponding path program 1 times [2021-04-28 22:53:01,215 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 22:53:01,215 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1091968460] [2021-04-28 22:53:01,215 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 22:53:01,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 22:53:01,279 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 22:53:01,280 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-28 22:53:01,281 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 22:53:01,281 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 22:53:01,285 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 22:53:01,286 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 22:53:01,290 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 22:53:01,291 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1091968460] [2021-04-28 22:53:01,291 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 22:53:01,291 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-04-28 22:53:01,291 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1055038167] [2021-04-28 22:53:01,291 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-04-28 22:53:01,292 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 22:53:01,292 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-04-28 22:53:01,292 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-04-28 22:53:01,294 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 238 out of 333 [2021-04-28 22:53:01,295 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 50 places, 47 transitions, 245 flow. Second operand has 4 states, 4 states have (on average 239.0) internal successors, (956), 4 states have internal predecessors, (956), 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) [2021-04-28 22:53:01,295 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 22:53:01,296 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 238 of 333 [2021-04-28 22:53:01,296 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 22:53:01,384 INFO L129 PetriNetUnfolder]: 198/539 cut-off events. [2021-04-28 22:53:01,384 INFO L130 PetriNetUnfolder]: For 448/451 co-relation queries the response was YES. [2021-04-28 22:53:01,386 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1601 conditions, 539 events. 198/539 cut-off events. For 448/451 co-relation queries the response was YES. Maximal size of possible extension queue 93. Compared 3676 event pairs, 0 based on Foata normal form. 28/293 useless extension candidates. Maximal degree in co-relation 1585. Up to 235 conditions per place. [2021-04-28 22:53:01,388 INFO L132 encePairwiseOnDemand]: 330/333 looper letters, 3 selfloop transitions, 1 changer transitions 3/48 dead transitions. [2021-04-28 22:53:01,388 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 53 places, 48 transitions, 259 flow [2021-04-28 22:53:01,389 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-04-28 22:53:01,389 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-04-28 22:53:01,392 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 958 transitions. [2021-04-28 22:53:01,392 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7192192192192193 [2021-04-28 22:53:01,393 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 958 transitions. [2021-04-28 22:53:01,393 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 958 transitions. [2021-04-28 22:53:01,393 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 22:53:01,394 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 958 transitions. [2021-04-28 22:53:01,396 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 239.5) internal successors, (958), 4 states have internal predecessors, (958), 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) [2021-04-28 22:53:01,399 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 333.0) internal successors, (1665), 5 states have internal predecessors, (1665), 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) [2021-04-28 22:53:01,400 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 333.0) internal successors, (1665), 5 states have internal predecessors, (1665), 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) [2021-04-28 22:53:01,400 INFO L185 Difference]: Start difference. First operand has 50 places, 47 transitions, 245 flow. Second operand 4 states and 958 transitions. [2021-04-28 22:53:01,400 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 53 places, 48 transitions, 259 flow [2021-04-28 22:53:01,405 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 48 places, 48 transitions, 231 flow, removed 1 selfloop flow, removed 5 redundant places. [2021-04-28 22:53:01,406 INFO L241 Difference]: Finished difference. Result has 50 places, 45 transitions, 218 flow [2021-04-28 22:53:01,406 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=333, PETRI_DIFFERENCE_MINUEND_FLOW=217, PETRI_DIFFERENCE_MINUEND_PLACES=45, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=47, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=46, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=218, PETRI_PLACES=50, PETRI_TRANSITIONS=45} [2021-04-28 22:53:01,406 INFO L343 CegarLoopForPetriNet]: 127 programPoint places, -77 predicate places. [2021-04-28 22:53:01,407 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 22:53:01,407 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 50 places, 45 transitions, 218 flow [2021-04-28 22:53:01,407 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 50 places, 45 transitions, 218 flow [2021-04-28 22:53:01,408 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 47 places, 45 transitions, 218 flow [2021-04-28 22:53:01,446 INFO L129 PetriNetUnfolder]: 108/319 cut-off events. [2021-04-28 22:53:01,447 INFO L130 PetriNetUnfolder]: For 170/173 co-relation queries the response was YES. [2021-04-28 22:53:01,447 INFO L84 FinitePrefix]: Finished finitePrefix Result has 826 conditions, 319 events. 108/319 cut-off events. For 170/173 co-relation queries the response was YES. Maximal size of possible extension queue 48. Compared 1944 event pairs, 0 based on Foata normal form. 1/168 useless extension candidates. Maximal degree in co-relation 812. Up to 136 conditions per place. [2021-04-28 22:53:01,450 INFO L146 LiptonReduction]: Number of co-enabled transitions 330 [2021-04-28 22:53:02,840 WARN L205 SmtUtils]: Spent 1.39 s on a formula simplification. DAG size of input: 218 DAG size of output: 178 [2021-04-28 22:53:03,494 WARN L205 SmtUtils]: Spent 651.00 ms on a formula simplification that was a NOOP. DAG size: 176 [2021-04-28 22:53:06,378 WARN L205 SmtUtils]: Spent 2.88 s on a formula simplification. DAG size of input: 302 DAG size of output: 258 [2021-04-28 22:53:07,652 WARN L205 SmtUtils]: Spent 1.27 s on a formula simplification that was a NOOP. DAG size: 255 [2021-04-28 22:53:07,686 INFO L158 LiptonReduction]: Checked pairs total: 727 [2021-04-28 22:53:07,687 INFO L160 LiptonReduction]: Total number of compositions: 1 [2021-04-28 22:53:07,687 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 6280 [2021-04-28 22:53:07,688 INFO L480 AbstractCegarLoop]: Abstraction has has 47 places, 45 transitions, 221 flow [2021-04-28 22:53:07,689 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 239.0) internal successors, (956), 4 states have internal predecessors, (956), 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) [2021-04-28 22:53:07,689 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 22:53:07,689 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 22:53:07,689 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-04-28 22:53:07,689 INFO L428 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P0Err0ASSERT_VIOLATIONERROR_FUNCTION, P0Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 22:53:07,690 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 22:53:07,690 INFO L82 PathProgramCache]: Analyzing trace with hash -230034864, now seen corresponding path program 1 times [2021-04-28 22:53:07,690 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 22:53:07,690 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1011222645] [2021-04-28 22:53:07,690 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 22:53:07,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-04-28 22:53:07,756 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-04-28 22:53:07,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-04-28 22:53:07,862 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-04-28 22:53:07,925 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-04-28 22:53:07,925 INFO L634 BasicCegarLoop]: Counterexample might be feasible [2021-04-28 22:53:07,926 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-04-28 22:53:08,061 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.04 10:53:08 BasicIcfg [2021-04-28 22:53:08,061 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-04-28 22:53:08,062 INFO L168 Benchmark]: Toolchain (without parser) took 65748.23 ms. Allocated memory was 325.1 MB in the beginning and 960.5 MB in the end (delta: 635.4 MB). Free memory was 298.6 MB in the beginning and 520.2 MB in the end (delta: -221.6 MB). Peak memory consumption was 417.4 MB. Max. memory is 16.0 GB. [2021-04-28 22:53:08,063 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 325.1 MB. Free memory was 293.4 MB in the beginning and 293.3 MB in the end (delta: 78.9 kB). There was no memory consumed. Max. memory is 16.0 GB. [2021-04-28 22:53:08,063 INFO L168 Benchmark]: CACSL2BoogieTranslator took 862.80 ms. Allocated memory is still 325.1 MB. Free memory was 295.4 MB in the beginning and 290.6 MB in the end (delta: 4.8 MB). Peak memory consumption was 27.2 MB. Max. memory is 16.0 GB. [2021-04-28 22:53:08,063 INFO L168 Benchmark]: Boogie Procedure Inliner took 60.91 ms. Allocated memory is still 325.1 MB. Free memory was 290.6 MB in the beginning and 288.6 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-04-28 22:53:08,064 INFO L168 Benchmark]: Boogie Preprocessor took 47.14 ms. Allocated memory is still 325.1 MB. Free memory was 288.6 MB in the beginning and 286.5 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-04-28 22:53:08,064 INFO L168 Benchmark]: RCFGBuilder took 2882.53 ms. Allocated memory was 325.1 MB in the beginning and 404.8 MB in the end (delta: 79.7 MB). Free memory was 286.5 MB in the beginning and 321.6 MB in the end (delta: -35.1 MB). Peak memory consumption was 176.2 MB. Max. memory is 16.0 GB. [2021-04-28 22:53:08,064 INFO L168 Benchmark]: TraceAbstraction took 61836.71 ms. Allocated memory was 404.8 MB in the beginning and 960.5 MB in the end (delta: 555.7 MB). Free memory was 320.5 MB in the beginning and 520.2 MB in the end (delta: -199.6 MB). Peak memory consumption was 356.1 MB. Max. memory is 16.0 GB. [2021-04-28 22:53:08,066 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 ms. Allocated memory is still 325.1 MB. Free memory was 293.4 MB in the beginning and 293.3 MB in the end (delta: 78.9 kB). There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 862.80 ms. Allocated memory is still 325.1 MB. Free memory was 295.4 MB in the beginning and 290.6 MB in the end (delta: 4.8 MB). Peak memory consumption was 27.2 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 60.91 ms. Allocated memory is still 325.1 MB. Free memory was 290.6 MB in the beginning and 288.6 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 47.14 ms. Allocated memory is still 325.1 MB. Free memory was 288.6 MB in the beginning and 286.5 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * RCFGBuilder took 2882.53 ms. Allocated memory was 325.1 MB in the beginning and 404.8 MB in the end (delta: 79.7 MB). Free memory was 286.5 MB in the beginning and 321.6 MB in the end (delta: -35.1 MB). Peak memory consumption was 176.2 MB. Max. memory is 16.0 GB. * TraceAbstraction took 61836.71 ms. Allocated memory was 404.8 MB in the beginning and 960.5 MB in the end (delta: 555.7 MB). Free memory was 320.5 MB in the beginning and 520.2 MB in the end (delta: -199.6 MB). Peak memory consumption was 356.1 MB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 35178.9ms, 104 PlacesBefore, 127 PlacesAfterwards, 96 TransitionsBefore, 118 TransitionsAfterwards, 1694 CoEnabledTransitionPairs, 8 FixpointIterations, 133 TrivialSequentialCompositions, 89 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 1 ConcurrentYvCompositions, 1 ChoiceCompositions, 224 TotalNumberOfCompositions, 15180 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 5261, positive: 5000, positive conditional: 5000, positive unconditional: 0, negative: 261, negative conditional: 261, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 2122, positive: 2076, positive conditional: 0, positive unconditional: 2076, negative: 46, negative conditional: 0, negative unconditional: 46, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 2122, positive: 2076, positive conditional: 0, positive unconditional: 2076, negative: 46, negative conditional: 0, negative unconditional: 46, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 2122, positive: 2038, positive conditional: 0, positive unconditional: 2038, negative: 84, negative conditional: 0, negative unconditional: 84, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 84, positive: 38, positive conditional: 0, positive unconditional: 38, negative: 46, negative conditional: 0, negative unconditional: 46, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 1120, positive: 180, positive conditional: 0, positive unconditional: 180, negative: 940, negative conditional: 0, negative unconditional: 940, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 5261, positive: 2924, positive conditional: 2924, positive unconditional: 0, negative: 215, negative conditional: 215, negative unconditional: 0, unknown: 2122, unknown conditional: 2122, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 2122, Positive cache size: 2076, Positive conditional cache size: 2076, Positive unconditional cache size: 0, Negative cache size: 46, Negative conditional cache size: 46, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 176.3ms, 123 PlacesBefore, 74 PlacesAfterwards, 65 TransitionsBefore, 65 TransitionsAfterwards, 1946 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 2580 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 486, positive: 406, positive conditional: 406, positive unconditional: 0, negative: 80, negative conditional: 80, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 27, positive: 6, positive conditional: 0, positive unconditional: 6, negative: 21, negative conditional: 0, negative unconditional: 21, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 27, positive: 6, positive conditional: 0, positive unconditional: 6, negative: 21, negative conditional: 0, negative unconditional: 21, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 27, positive: 6, positive conditional: 0, positive unconditional: 6, negative: 21, negative conditional: 0, negative unconditional: 21, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ 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] , SemanticIndependenceRelation.Query Time [ms]: [ total: 151, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 151, negative conditional: 0, negative unconditional: 151, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 486, positive: 400, positive conditional: 400, positive unconditional: 0, negative: 59, negative conditional: 59, negative unconditional: 0, unknown: 27, unknown conditional: 27, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 2149, Positive cache size: 2082, Positive conditional cache size: 2082, Positive unconditional cache size: 0, Negative cache size: 67, Negative conditional cache size: 67, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 298.8ms, 79 PlacesBefore, 69 PlacesAfterwards, 66 TransitionsBefore, 66 TransitionsAfterwards, 1730 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 1540 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 378, positive: 348, positive conditional: 348, positive unconditional: 0, negative: 30, negative conditional: 30, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 50, positive: 48, positive conditional: 24, positive unconditional: 24, 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: 50, positive: 48, positive conditional: 24, positive unconditional: 24, 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: 50, positive: 48, positive conditional: 0, positive unconditional: 48, 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: 73, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 73, negative conditional: 0, negative unconditional: 73, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 378, positive: 300, positive conditional: 300, positive unconditional: 0, negative: 28, negative conditional: 28, negative unconditional: 0, unknown: 50, unknown conditional: 50, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 2199, Positive cache size: 2130, Positive conditional cache size: 2130, Positive unconditional cache size: 0, Negative cache size: 69, Negative conditional cache size: 69, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 315.8ms, 75 PlacesBefore, 73 PlacesAfterwards, 75 TransitionsBefore, 75 TransitionsAfterwards, 1748 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 2002 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 506, positive: 467, positive conditional: 467, positive unconditional: 0, negative: 39, negative conditional: 39, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 33, positive: 33, positive conditional: 31, positive unconditional: 2, 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: 33, positive: 33, positive conditional: 31, positive unconditional: 2, 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: 33, positive: 33, positive conditional: 0, positive unconditional: 33, 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: 506, positive: 434, positive conditional: 434, positive unconditional: 0, negative: 39, negative conditional: 39, negative unconditional: 0, unknown: 33, unknown conditional: 33, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 2232, Positive cache size: 2163, Positive conditional cache size: 2163, Positive unconditional cache size: 0, Negative cache size: 69, Negative conditional cache size: 69, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 1080.3ms, 74 PlacesBefore, 74 PlacesAfterwards, 76 TransitionsBefore, 76 TransitionsAfterwards, 1764 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 1855 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 556, positive: 520, positive conditional: 520, positive unconditional: 0, negative: 36, negative conditional: 36, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 64, positive: 58, positive conditional: 42, positive unconditional: 16, negative: 6, negative conditional: 0, negative unconditional: 6, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 64, positive: 58, positive conditional: 42, positive unconditional: 16, negative: 6, negative conditional: 0, negative unconditional: 6, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 64, positive: 58, positive conditional: 0, positive unconditional: 58, negative: 6, negative conditional: 0, negative unconditional: 6, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 6, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 6, negative conditional: 0, negative unconditional: 6, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 158, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 158, negative conditional: 0, negative unconditional: 158, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 556, positive: 462, positive conditional: 462, positive unconditional: 0, negative: 30, negative conditional: 30, negative unconditional: 0, unknown: 64, unknown conditional: 64, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 2296, Positive cache size: 2221, Positive conditional cache size: 2221, Positive unconditional cache size: 0, Negative cache size: 75, Negative conditional cache size: 75, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 92.3ms, 82 PlacesBefore, 54 PlacesAfterwards, 50 TransitionsBefore, 50 TransitionsAfterwards, 572 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 1 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 TotalNumberOfCompositions, 1589 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 311, positive: 243, positive conditional: 243, positive unconditional: 0, negative: 68, negative conditional: 68, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 77, positive: 74, positive conditional: 41, positive unconditional: 33, negative: 3, negative conditional: 0, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 77, positive: 74, positive conditional: 41, positive unconditional: 33, negative: 3, negative conditional: 0, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 77, positive: 74, positive conditional: 0, positive unconditional: 74, negative: 3, negative conditional: 0, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 3, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 3, negative conditional: 0, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 12, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 12, negative conditional: 0, negative unconditional: 12, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 311, positive: 169, positive conditional: 169, positive unconditional: 0, negative: 65, negative conditional: 65, negative unconditional: 0, unknown: 77, unknown conditional: 77, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 2373, Positive cache size: 2295, Positive conditional cache size: 2295, Positive unconditional cache size: 0, Negative cache size: 78, Negative conditional cache size: 78, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 12839.5ms, 55 PlacesBefore, 50 PlacesAfterwards, 47 TransitionsBefore, 47 TransitionsAfterwards, 436 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 9 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 9 TotalNumberOfCompositions, 1158 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 374, positive: 330, positive conditional: 330, positive unconditional: 0, negative: 44, negative conditional: 44, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 59, positive: 58, positive conditional: 58, positive unconditional: 0, negative: 1, negative conditional: 1, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 59, positive: 58, positive conditional: 58, positive unconditional: 0, negative: 1, negative conditional: 1, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 59, positive: 51, positive conditional: 0, positive unconditional: 51, negative: 8, negative conditional: 0, negative unconditional: 8, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 8, positive: 7, positive conditional: 7, positive unconditional: 0, negative: 1, negative conditional: 1, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 281, positive: 256, positive conditional: 256, positive unconditional: 0, negative: 26, negative conditional: 26, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 374, positive: 272, positive conditional: 272, positive unconditional: 0, negative: 43, negative conditional: 43, negative unconditional: 0, unknown: 59, unknown conditional: 59, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 2432, Positive cache size: 2353, Positive conditional cache size: 2353, Positive unconditional cache size: 0, Negative cache size: 79, Negative conditional cache size: 79, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 6279.5ms, 50 PlacesBefore, 47 PlacesAfterwards, 45 TransitionsBefore, 45 TransitionsAfterwards, 330 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 1 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 TotalNumberOfCompositions, 727 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 93, positive: 55, positive conditional: 55, positive unconditional: 0, negative: 38, negative conditional: 38, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 19, positive: 18, positive conditional: 13, positive unconditional: 5, 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: 19, positive: 18, positive conditional: 13, positive unconditional: 5, 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: 19, positive: 18, positive conditional: 0, positive unconditional: 18, 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: 26, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 26, negative conditional: 0, negative unconditional: 26, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 93, positive: 37, positive conditional: 37, positive unconditional: 0, negative: 37, negative conditional: 37, negative unconditional: 0, unknown: 19, unknown conditional: 19, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 2451, Positive cache size: 2371, Positive conditional cache size: 2371, Positive unconditional cache size: 0, Negative cache size: 80, Negative conditional cache size: 80, Negative unconditional cache size: 0 - CounterExampleResult [Line: 18]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L709] 0 int __unbuffered_cnt = 0; [L711] 0 int __unbuffered_p0_EAX = 0; [L713] 0 int __unbuffered_p1_EAX = 0; [L715] 0 int __unbuffered_p2_EAX = 0; [L716] 0 _Bool main$tmp_guard0; [L717] 0 _Bool main$tmp_guard1; [L719] 0 int x = 0; [L721] 0 int y = 0; [L723] 0 int z = 0; [L724] 0 _Bool z$flush_delayed; [L725] 0 int z$mem_tmp; [L726] 0 _Bool z$r_buff0_thd0; [L727] 0 _Bool z$r_buff0_thd1; [L728] 0 _Bool z$r_buff0_thd2; [L729] 0 _Bool z$r_buff0_thd3; [L730] 0 _Bool z$r_buff1_thd0; [L731] 0 _Bool z$r_buff1_thd1; [L732] 0 _Bool z$r_buff1_thd2; [L733] 0 _Bool z$r_buff1_thd3; [L734] 0 _Bool z$read_delayed; [L735] 0 int *z$read_delayed_var; [L736] 0 int z$w_buff0; [L737] 0 _Bool z$w_buff0_used; [L738] 0 int z$w_buff1; [L739] 0 _Bool z$w_buff1_used; [L740] 0 _Bool weak$$choice0; [L741] 0 _Bool weak$$choice2; [L835] 0 pthread_t t1561; [L836] FCALL, FORK 0 pthread_create(&t1561, ((void *)0), P0, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=0, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0] [L745] 1 z$w_buff1 = z$w_buff0 [L746] 1 z$w_buff0 = 1 [L747] 1 z$w_buff1_used = z$w_buff0_used [L748] 1 z$w_buff0_used = (_Bool)1 [L18] COND FALSE 1 !(!expression) [L750] 1 z$r_buff1_thd0 = z$r_buff0_thd0 [L751] 1 z$r_buff1_thd1 = z$r_buff0_thd1 [L752] 1 z$r_buff1_thd2 = z$r_buff0_thd2 [L753] 1 z$r_buff1_thd3 = z$r_buff0_thd3 [L754] 1 z$r_buff0_thd1 = (_Bool)1 VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=1, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=1, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0] [L757] 1 __unbuffered_p0_EAX = x VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=1, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=1, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0] [L837] 0 pthread_t t1562; [L838] FCALL, FORK 0 pthread_create(&t1562, ((void *)0), P1, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=1, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=1, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0] [L774] 2 x = 1 [L777] 2 __unbuffered_p1_EAX = y VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=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, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=1, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=1, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0] [L839] 0 pthread_t t1563; [L840] FCALL, FORK 0 pthread_create(&t1563, ((void *)0), P2, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=1, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=1, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=1, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0] [L794] 3 y = 1 VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=1, y=1, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=1, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=1, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0] [L780] EXPR 2 z$w_buff0_used && z$r_buff0_thd2 ? z$w_buff0 : (z$w_buff1_used && z$r_buff1_thd2 ? z$w_buff1 : z) [L780] EXPR 2 z$w_buff1_used && z$r_buff1_thd2 ? z$w_buff1 : z [L780] EXPR 2 z$w_buff0_used && z$r_buff0_thd2 ? z$w_buff0 : (z$w_buff1_used && z$r_buff1_thd2 ? z$w_buff1 : z) [L780] 2 z = z$w_buff0_used && z$r_buff0_thd2 ? z$w_buff0 : (z$w_buff1_used && z$r_buff1_thd2 ? z$w_buff1 : z) [L781] EXPR 2 z$w_buff0_used && z$r_buff0_thd2 ? (_Bool)0 : z$w_buff0_used [L781] 2 z$w_buff0_used = z$w_buff0_used && z$r_buff0_thd2 ? (_Bool)0 : z$w_buff0_used [L782] EXPR 2 z$w_buff0_used && z$r_buff0_thd2 || z$w_buff1_used && z$r_buff1_thd2 ? (_Bool)0 : z$w_buff1_used [L782] 2 z$w_buff1_used = z$w_buff0_used && z$r_buff0_thd2 || z$w_buff1_used && z$r_buff1_thd2 ? (_Bool)0 : z$w_buff1_used [L783] EXPR 2 z$w_buff0_used && z$r_buff0_thd2 ? (_Bool)0 : z$r_buff0_thd2 [L783] 2 z$r_buff0_thd2 = z$w_buff0_used && z$r_buff0_thd2 ? (_Bool)0 : z$r_buff0_thd2 [L784] EXPR 2 z$w_buff0_used && z$r_buff0_thd2 || z$w_buff1_used && z$r_buff1_thd2 ? (_Bool)0 : z$r_buff1_thd2 [L784] 2 z$r_buff1_thd2 = z$w_buff0_used && z$r_buff0_thd2 || z$w_buff1_used && z$r_buff1_thd2 ? (_Bool)0 : z$r_buff1_thd2 [L797] 3 weak$$choice0 = __VERIFIER_nondet_bool() [L798] 3 weak$$choice2 = __VERIFIER_nondet_bool() [L799] 3 z$flush_delayed = weak$$choice2 [L800] 3 z$mem_tmp = z [L801] EXPR 3 !z$w_buff0_used || !z$r_buff0_thd3 && !z$w_buff1_used || !z$r_buff0_thd3 && !z$r_buff1_thd3 ? z : (z$w_buff0_used && z$r_buff0_thd3 ? z$w_buff0 : z$w_buff1) [L801] 3 z = !z$w_buff0_used || !z$r_buff0_thd3 && !z$w_buff1_used || !z$r_buff0_thd3 && !z$r_buff1_thd3 ? z : (z$w_buff0_used && z$r_buff0_thd3 ? z$w_buff0 : z$w_buff1) [L802] EXPR 3 weak$$choice2 ? z$w_buff0 : (!z$w_buff0_used || !z$r_buff0_thd3 && !z$w_buff1_used || !z$r_buff0_thd3 && !z$r_buff1_thd3 ? z$w_buff0 : (z$w_buff0_used && z$r_buff0_thd3 ? z$w_buff0 : z$w_buff0)) [L802] EXPR 3 !z$w_buff0_used || !z$r_buff0_thd3 && !z$w_buff1_used || !z$r_buff0_thd3 && !z$r_buff1_thd3 ? z$w_buff0 : (z$w_buff0_used && z$r_buff0_thd3 ? z$w_buff0 : z$w_buff0) [L802] EXPR 3 weak$$choice2 ? z$w_buff0 : (!z$w_buff0_used || !z$r_buff0_thd3 && !z$w_buff1_used || !z$r_buff0_thd3 && !z$r_buff1_thd3 ? z$w_buff0 : (z$w_buff0_used && z$r_buff0_thd3 ? z$w_buff0 : z$w_buff0)) [L802] 3 z$w_buff0 = weak$$choice2 ? z$w_buff0 : (!z$w_buff0_used || !z$r_buff0_thd3 && !z$w_buff1_used || !z$r_buff0_thd3 && !z$r_buff1_thd3 ? z$w_buff0 : (z$w_buff0_used && z$r_buff0_thd3 ? z$w_buff0 : z$w_buff0)) [L803] EXPR 3 weak$$choice2 ? z$w_buff1 : (!z$w_buff0_used || !z$r_buff0_thd3 && !z$w_buff1_used || !z$r_buff0_thd3 && !z$r_buff1_thd3 ? z$w_buff1 : (z$w_buff0_used && z$r_buff0_thd3 ? z$w_buff1 : z$w_buff1)) [L803] EXPR 3 !z$w_buff0_used || !z$r_buff0_thd3 && !z$w_buff1_used || !z$r_buff0_thd3 && !z$r_buff1_thd3 ? z$w_buff1 : (z$w_buff0_used && z$r_buff0_thd3 ? z$w_buff1 : z$w_buff1) [L803] EXPR 3 weak$$choice2 ? z$w_buff1 : (!z$w_buff0_used || !z$r_buff0_thd3 && !z$w_buff1_used || !z$r_buff0_thd3 && !z$r_buff1_thd3 ? z$w_buff1 : (z$w_buff0_used && z$r_buff0_thd3 ? z$w_buff1 : z$w_buff1)) [L803] 3 z$w_buff1 = weak$$choice2 ? z$w_buff1 : (!z$w_buff0_used || !z$r_buff0_thd3 && !z$w_buff1_used || !z$r_buff0_thd3 && !z$r_buff1_thd3 ? z$w_buff1 : (z$w_buff0_used && z$r_buff0_thd3 ? z$w_buff1 : z$w_buff1)) [L804] EXPR 3 weak$$choice2 ? z$w_buff0_used : (!z$w_buff0_used || !z$r_buff0_thd3 && !z$w_buff1_used || !z$r_buff0_thd3 && !z$r_buff1_thd3 ? z$w_buff0_used : (z$w_buff0_used && z$r_buff0_thd3 ? (_Bool)0 : z$w_buff0_used)) [L804] EXPR 3 !z$w_buff0_used || !z$r_buff0_thd3 && !z$w_buff1_used || !z$r_buff0_thd3 && !z$r_buff1_thd3 ? z$w_buff0_used : (z$w_buff0_used && z$r_buff0_thd3 ? (_Bool)0 : z$w_buff0_used) [L804] EXPR 3 weak$$choice2 ? z$w_buff0_used : (!z$w_buff0_used || !z$r_buff0_thd3 && !z$w_buff1_used || !z$r_buff0_thd3 && !z$r_buff1_thd3 ? z$w_buff0_used : (z$w_buff0_used && z$r_buff0_thd3 ? (_Bool)0 : z$w_buff0_used)) [L804] 3 z$w_buff0_used = weak$$choice2 ? z$w_buff0_used : (!z$w_buff0_used || !z$r_buff0_thd3 && !z$w_buff1_used || !z$r_buff0_thd3 && !z$r_buff1_thd3 ? z$w_buff0_used : (z$w_buff0_used && z$r_buff0_thd3 ? (_Bool)0 : z$w_buff0_used)) [L805] EXPR 3 weak$$choice2 ? z$w_buff1_used : (!z$w_buff0_used || !z$r_buff0_thd3 && !z$w_buff1_used || !z$r_buff0_thd3 && !z$r_buff1_thd3 ? z$w_buff1_used : (z$w_buff0_used && z$r_buff0_thd3 ? (_Bool)0 : (_Bool)0)) [L805] EXPR 3 !z$w_buff0_used || !z$r_buff0_thd3 && !z$w_buff1_used || !z$r_buff0_thd3 && !z$r_buff1_thd3 ? z$w_buff1_used : (z$w_buff0_used && z$r_buff0_thd3 ? (_Bool)0 : (_Bool)0) [L805] EXPR 3 weak$$choice2 ? z$w_buff1_used : (!z$w_buff0_used || !z$r_buff0_thd3 && !z$w_buff1_used || !z$r_buff0_thd3 && !z$r_buff1_thd3 ? z$w_buff1_used : (z$w_buff0_used && z$r_buff0_thd3 ? (_Bool)0 : (_Bool)0)) [L805] 3 z$w_buff1_used = weak$$choice2 ? z$w_buff1_used : (!z$w_buff0_used || !z$r_buff0_thd3 && !z$w_buff1_used || !z$r_buff0_thd3 && !z$r_buff1_thd3 ? z$w_buff1_used : (z$w_buff0_used && z$r_buff0_thd3 ? (_Bool)0 : (_Bool)0)) [L806] EXPR 3 weak$$choice2 ? z$r_buff0_thd3 : (!z$w_buff0_used || !z$r_buff0_thd3 && !z$w_buff1_used || !z$r_buff0_thd3 && !z$r_buff1_thd3 ? z$r_buff0_thd3 : (z$w_buff0_used && z$r_buff0_thd3 ? (_Bool)0 : z$r_buff0_thd3)) [L806] EXPR 3 !z$w_buff0_used || !z$r_buff0_thd3 && !z$w_buff1_used || !z$r_buff0_thd3 && !z$r_buff1_thd3 ? z$r_buff0_thd3 : (z$w_buff0_used && z$r_buff0_thd3 ? (_Bool)0 : z$r_buff0_thd3) [L806] EXPR 3 weak$$choice2 ? z$r_buff0_thd3 : (!z$w_buff0_used || !z$r_buff0_thd3 && !z$w_buff1_used || !z$r_buff0_thd3 && !z$r_buff1_thd3 ? z$r_buff0_thd3 : (z$w_buff0_used && z$r_buff0_thd3 ? (_Bool)0 : z$r_buff0_thd3)) [L806] 3 z$r_buff0_thd3 = weak$$choice2 ? z$r_buff0_thd3 : (!z$w_buff0_used || !z$r_buff0_thd3 && !z$w_buff1_used || !z$r_buff0_thd3 && !z$r_buff1_thd3 ? z$r_buff0_thd3 : (z$w_buff0_used && z$r_buff0_thd3 ? (_Bool)0 : z$r_buff0_thd3)) [L807] EXPR 3 weak$$choice2 ? z$r_buff1_thd3 : (!z$w_buff0_used || !z$r_buff0_thd3 && !z$w_buff1_used || !z$r_buff0_thd3 && !z$r_buff1_thd3 ? z$r_buff1_thd3 : (z$w_buff0_used && z$r_buff0_thd3 ? (_Bool)0 : (_Bool)0)) [L807] EXPR 3 !z$w_buff0_used || !z$r_buff0_thd3 && !z$w_buff1_used || !z$r_buff0_thd3 && !z$r_buff1_thd3 ? z$r_buff1_thd3 : (z$w_buff0_used && z$r_buff0_thd3 ? (_Bool)0 : (_Bool)0) [L807] EXPR 3 weak$$choice2 ? z$r_buff1_thd3 : (!z$w_buff0_used || !z$r_buff0_thd3 && !z$w_buff1_used || !z$r_buff0_thd3 && !z$r_buff1_thd3 ? z$r_buff1_thd3 : (z$w_buff0_used && z$r_buff0_thd3 ? (_Bool)0 : (_Bool)0)) [L807] 3 z$r_buff1_thd3 = weak$$choice2 ? z$r_buff1_thd3 : (!z$w_buff0_used || !z$r_buff0_thd3 && !z$w_buff1_used || !z$r_buff0_thd3 && !z$r_buff1_thd3 ? z$r_buff1_thd3 : (z$w_buff0_used && z$r_buff0_thd3 ? (_Bool)0 : (_Bool)0)) [L808] 3 __unbuffered_p2_EAX = z [L809] EXPR 3 z$flush_delayed ? z$mem_tmp : z [L809] 3 z = z$flush_delayed ? z$mem_tmp : z [L810] 3 z$flush_delayed = (_Bool)0 VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=49, weak$$choice2=0, x=1, y=1, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=1, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=1, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0] [L760] EXPR 1 z$w_buff0_used && z$r_buff0_thd1 ? z$w_buff0 : (z$w_buff1_used && z$r_buff1_thd1 ? z$w_buff1 : z) [L760] 1 z = z$w_buff0_used && z$r_buff0_thd1 ? z$w_buff0 : (z$w_buff1_used && z$r_buff1_thd1 ? z$w_buff1 : z) [L761] EXPR 1 z$w_buff0_used && z$r_buff0_thd1 ? (_Bool)0 : z$w_buff0_used [L761] 1 z$w_buff0_used = z$w_buff0_used && z$r_buff0_thd1 ? (_Bool)0 : z$w_buff0_used [L762] EXPR 1 z$w_buff0_used && z$r_buff0_thd1 || z$w_buff1_used && z$r_buff1_thd1 ? (_Bool)0 : z$w_buff1_used [L762] 1 z$w_buff1_used = z$w_buff0_used && z$r_buff0_thd1 || z$w_buff1_used && z$r_buff1_thd1 ? (_Bool)0 : z$w_buff1_used [L763] EXPR 1 z$w_buff0_used && z$r_buff0_thd1 ? (_Bool)0 : z$r_buff0_thd1 [L763] 1 z$r_buff0_thd1 = z$w_buff0_used && z$r_buff0_thd1 ? (_Bool)0 : z$r_buff0_thd1 [L764] EXPR 1 z$w_buff0_used && z$r_buff0_thd1 || z$w_buff1_used && z$r_buff1_thd1 ? (_Bool)0 : z$r_buff1_thd1 [L764] 1 z$r_buff1_thd1 = z$w_buff0_used && z$r_buff0_thd1 || z$w_buff1_used && z$r_buff1_thd1 ? (_Bool)0 : z$r_buff1_thd1 [L767] 1 __unbuffered_cnt = __unbuffered_cnt + 1 VAL [__unbuffered_cnt=1, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=49, weak$$choice2=0, x=1, y=1, z=1, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=1, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=1, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0] [L787] 2 __unbuffered_cnt = __unbuffered_cnt + 1 VAL [__unbuffered_cnt=2, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=49, weak$$choice2=0, x=1, y=1, z=1, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=1, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=1, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0] [L813] EXPR 3 z$w_buff0_used && z$r_buff0_thd3 ? z$w_buff0 : (z$w_buff1_used && z$r_buff1_thd3 ? z$w_buff1 : z) [L813] EXPR 3 z$w_buff1_used && z$r_buff1_thd3 ? z$w_buff1 : z [L813] EXPR 3 z$w_buff0_used && z$r_buff0_thd3 ? z$w_buff0 : (z$w_buff1_used && z$r_buff1_thd3 ? z$w_buff1 : z) [L813] 3 z = z$w_buff0_used && z$r_buff0_thd3 ? z$w_buff0 : (z$w_buff1_used && z$r_buff1_thd3 ? z$w_buff1 : z) [L814] EXPR 3 z$w_buff0_used && z$r_buff0_thd3 ? (_Bool)0 : z$w_buff0_used [L814] 3 z$w_buff0_used = z$w_buff0_used && z$r_buff0_thd3 ? (_Bool)0 : z$w_buff0_used [L815] EXPR 3 z$w_buff0_used && z$r_buff0_thd3 || z$w_buff1_used && z$r_buff1_thd3 ? (_Bool)0 : z$w_buff1_used [L815] 3 z$w_buff1_used = z$w_buff0_used && z$r_buff0_thd3 || z$w_buff1_used && z$r_buff1_thd3 ? (_Bool)0 : z$w_buff1_used [L816] EXPR 3 z$w_buff0_used && z$r_buff0_thd3 ? (_Bool)0 : z$r_buff0_thd3 [L816] 3 z$r_buff0_thd3 = z$w_buff0_used && z$r_buff0_thd3 ? (_Bool)0 : z$r_buff0_thd3 [L817] EXPR 3 z$w_buff0_used && z$r_buff0_thd3 || z$w_buff1_used && z$r_buff1_thd3 ? (_Bool)0 : z$r_buff1_thd3 [L817] 3 z$r_buff1_thd3 = z$w_buff0_used && z$r_buff0_thd3 || z$w_buff1_used && z$r_buff1_thd3 ? (_Bool)0 : z$r_buff1_thd3 [L820] 3 __unbuffered_cnt = __unbuffered_cnt + 1 VAL [__unbuffered_cnt=3, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=49, weak$$choice2=0, x=1, y=1, z=1, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=1, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=1, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0] [L842] 0 main$tmp_guard0 = __unbuffered_cnt == 3 [L3] COND FALSE 0 !(!cond) [L846] EXPR 0 z$w_buff0_used && z$r_buff0_thd0 ? z$w_buff0 : (z$w_buff1_used && z$r_buff1_thd0 ? z$w_buff1 : z) [L846] EXPR 0 z$w_buff1_used && z$r_buff1_thd0 ? z$w_buff1 : z [L846] EXPR 0 z$w_buff0_used && z$r_buff0_thd0 ? z$w_buff0 : (z$w_buff1_used && z$r_buff1_thd0 ? z$w_buff1 : z) [L846] 0 z = z$w_buff0_used && z$r_buff0_thd0 ? z$w_buff0 : (z$w_buff1_used && z$r_buff1_thd0 ? z$w_buff1 : z) [L847] EXPR 0 z$w_buff0_used && z$r_buff0_thd0 ? (_Bool)0 : z$w_buff0_used [L847] 0 z$w_buff0_used = z$w_buff0_used && z$r_buff0_thd0 ? (_Bool)0 : z$w_buff0_used [L848] EXPR 0 z$w_buff0_used && z$r_buff0_thd0 || z$w_buff1_used && z$r_buff1_thd0 ? (_Bool)0 : z$w_buff1_used [L848] 0 z$w_buff1_used = z$w_buff0_used && z$r_buff0_thd0 || z$w_buff1_used && z$r_buff1_thd0 ? (_Bool)0 : z$w_buff1_used [L849] EXPR 0 z$w_buff0_used && z$r_buff0_thd0 ? (_Bool)0 : z$r_buff0_thd0 [L849] 0 z$r_buff0_thd0 = z$w_buff0_used && z$r_buff0_thd0 ? (_Bool)0 : z$r_buff0_thd0 [L850] EXPR 0 z$w_buff0_used && z$r_buff0_thd0 || z$w_buff1_used && z$r_buff1_thd0 ? (_Bool)0 : z$r_buff1_thd0 [L850] 0 z$r_buff1_thd0 = z$w_buff0_used && z$r_buff0_thd0 || z$w_buff1_used && z$r_buff1_thd0 ? (_Bool)0 : z$r_buff1_thd0 [L853] 0 main$tmp_guard1 = !(__unbuffered_p0_EAX == 0 && __unbuffered_p1_EAX == 0 && __unbuffered_p2_EAX == 0) [L18] COND TRUE 0 !expression [L18] 0 reach_error() VAL [__unbuffered_cnt=3, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, weak$$choice0=49, weak$$choice2=0, x=1, y=1, z=1, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=1, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=1, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 98 locations, 2 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 20.9ms, RemoveRedundantFlowTime: 0.0ms, RemoveRedundantFlowUnfoldingTime: 0.0ms, BackfoldingTime: 0.0ms, BackfoldingUnfoldingTime: 0.0ms, FlowIncreaseByBackfolding: 0, BasicCegarLoop: VerificationResult: UNSAFE, OverallTime: 61530.9ms, OverallIterations: 8, TraceHistogramMax: 1, EmptinessCheckTime: 0.0ms, AutomataDifference: 3376.7ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 35298.7ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 64 SDtfs, 72 SDslu, 43 SDs, 0 SdLazy, 359 SolverSat, 90 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 460.8ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 33 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 459.2ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=350occurred in iteration=3, InterpolantAutomatonStates: 36, 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: 44.7ms SsaConstructionTime, 462.0ms SatisfiabilityAnalysisTime, 777.3ms InterpolantComputationTime, 119 NumberOfCodeBlocks, 119 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 93 ConstructedInterpolants, 0 QuantifiedInterpolants, 714 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 7 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...