/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-RepeatedVariableLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-wmm/rfi001_pso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-d5b4239aa45c8d22a30959944f2ef622f7386a6d-d5b4239 [2021-03-25 04:52:32,510 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-03-25 04:52:32,513 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-03-25 04:52:32,551 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-03-25 04:52:32,551 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-03-25 04:52:32,554 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-03-25 04:52:32,556 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-03-25 04:52:32,561 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-03-25 04:52:32,563 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-03-25 04:52:32,566 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-03-25 04:52:32,567 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-03-25 04:52:32,568 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-03-25 04:52:32,569 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-03-25 04:52:32,570 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-03-25 04:52:32,572 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-03-25 04:52:32,573 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-03-25 04:52:32,576 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-03-25 04:52:32,576 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-03-25 04:52:32,580 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-03-25 04:52:32,588 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-03-25 04:52:32,590 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-03-25 04:52:32,591 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-03-25 04:52:32,592 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-03-25 04:52:32,592 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-03-25 04:52:32,594 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-03-25 04:52:32,594 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-03-25 04:52:32,595 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-03-25 04:52:32,595 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-03-25 04:52:32,595 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-03-25 04:52:32,596 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-03-25 04:52:32,596 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-03-25 04:52:32,597 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-03-25 04:52:32,597 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-03-25 04:52:32,598 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-03-25 04:52:32,599 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-03-25 04:52:32,602 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-03-25 04:52:32,603 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-03-25 04:52:32,603 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-03-25 04:52:32,603 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-03-25 04:52:32,604 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-03-25 04:52:32,604 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-03-25 04:52:32,608 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-RepeatedVariableLbe.epf [2021-03-25 04:52:32,637 INFO L113 SettingsManager]: Loading preferences was successful [2021-03-25 04:52:32,637 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-03-25 04:52:32,641 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-03-25 04:52:32,641 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-03-25 04:52:32,641 INFO L138 SettingsManager]: * Use SBE=true [2021-03-25 04:52:32,641 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-03-25 04:52:32,641 INFO L138 SettingsManager]: * sizeof long=4 [2021-03-25 04:52:32,641 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-03-25 04:52:32,641 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-03-25 04:52:32,642 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-03-25 04:52:32,643 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-03-25 04:52:32,643 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-03-25 04:52:32,643 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-03-25 04:52:32,643 INFO L138 SettingsManager]: * sizeof long double=12 [2021-03-25 04:52:32,643 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-03-25 04:52:32,643 INFO L138 SettingsManager]: * Use constant arrays=true [2021-03-25 04:52:32,643 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-03-25 04:52:32,644 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-03-25 04:52:32,644 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-03-25 04:52:32,644 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-03-25 04:52:32,644 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-03-25 04:52:32,644 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-03-25 04:52:32,644 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-03-25 04:52:32,645 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-03-25 04:52:32,645 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-03-25 04:52:32,645 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-03-25 04:52:32,645 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-03-25 04:52:32,645 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=VARIABLE_BASED_MOVER_CHECK [2021-03-25 04:52:32,645 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-03-25 04:52:32,645 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-03-25 04:52:32,645 INFO L138 SettingsManager]: * Apply repeated Lipton Reduction=true WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-03-25 04:52:32,938 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-03-25 04:52:32,958 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-03-25 04:52:32,961 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-03-25 04:52:32,962 INFO L271 PluginConnector]: Initializing CDTParser... [2021-03-25 04:52:32,962 INFO L275 PluginConnector]: CDTParser initialized [2021-03-25 04:52:32,963 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/rfi001_pso.oepc.i [2021-03-25 04:52:33,022 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ceb2c245b/57d47126cd8f47eda5d5e42c9ffd5694/FLAGb0f454679 [2021-03-25 04:52:33,553 INFO L306 CDTParser]: Found 1 translation units. [2021-03-25 04:52:33,554 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/rfi001_pso.oepc.i [2021-03-25 04:52:33,570 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ceb2c245b/57d47126cd8f47eda5d5e42c9ffd5694/FLAGb0f454679 [2021-03-25 04:52:34,019 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ceb2c245b/57d47126cd8f47eda5d5e42c9ffd5694 [2021-03-25 04:52:34,024 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-03-25 04:52:34,025 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-03-25 04:52:34,029 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-03-25 04:52:34,029 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-03-25 04:52:34,031 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-03-25 04:52:34,032 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.03 04:52:34" (1/1) ... [2021-03-25 04:52:34,033 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@57bc7fb6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 04:52:34, skipping insertion in model container [2021-03-25 04:52:34,033 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.03 04:52:34" (1/1) ... [2021-03-25 04:52:34,040 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-03-25 04:52:34,075 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-03-25 04:52:34,188 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/rfi001_pso.oepc.i[949,962] [2021-03-25 04:52:34,366 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-03-25 04:52:34,377 INFO L203 MainTranslator]: Completed pre-run [2021-03-25 04:52:34,392 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/rfi001_pso.oepc.i[949,962] [2021-03-25 04:52:34,444 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-03-25 04:52:34,510 INFO L208 MainTranslator]: Completed translation [2021-03-25 04:52:34,510 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 04:52:34 WrapperNode [2021-03-25 04:52:34,512 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-03-25 04:52:34,513 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-03-25 04:52:34,513 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-03-25 04:52:34,513 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-03-25 04:52:34,519 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 04:52:34" (1/1) ... [2021-03-25 04:52:34,551 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 04:52:34" (1/1) ... [2021-03-25 04:52:34,569 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-03-25 04:52:34,570 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-03-25 04:52:34,570 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-03-25 04:52:34,570 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-03-25 04:52:34,577 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 04:52:34" (1/1) ... [2021-03-25 04:52:34,577 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 04:52:34" (1/1) ... [2021-03-25 04:52:34,580 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 04:52:34" (1/1) ... [2021-03-25 04:52:34,581 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 04:52:34" (1/1) ... [2021-03-25 04:52:34,589 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 04:52:34" (1/1) ... [2021-03-25 04:52:34,593 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 04:52:34" (1/1) ... [2021-03-25 04:52:34,595 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 04:52:34" (1/1) ... [2021-03-25 04:52:34,599 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-03-25 04:52:34,599 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-03-25 04:52:34,599 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-03-25 04:52:34,600 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-03-25 04:52:34,600 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 04:52:34" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-03-25 04:52:34,688 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-03-25 04:52:34,688 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-03-25 04:52:34,688 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-03-25 04:52:34,688 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-03-25 04:52:34,688 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2021-03-25 04:52:34,689 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2021-03-25 04:52:34,689 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2021-03-25 04:52:34,689 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2021-03-25 04:52:34,689 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-03-25 04:52:34,689 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-03-25 04:52:34,689 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-03-25 04:52:34,689 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-03-25 04:52:34,691 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-03-25 04:52:36,119 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-03-25 04:52:36,119 INFO L299 CfgBuilder]: Removed 10 assume(true) statements. [2021-03-25 04:52:36,121 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.03 04:52:36 BoogieIcfgContainer [2021-03-25 04:52:36,121 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-03-25 04:52:36,122 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-03-25 04:52:36,122 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-03-25 04:52:36,125 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-03-25 04:52:36,125 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.03 04:52:34" (1/3) ... [2021-03-25 04:52:36,126 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1bc5b3a6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.03 04:52:36, skipping insertion in model container [2021-03-25 04:52:36,126 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 04:52:34" (2/3) ... [2021-03-25 04:52:36,126 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1bc5b3a6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.03 04:52:36, skipping insertion in model container [2021-03-25 04:52:36,126 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.03 04:52:36" (3/3) ... [2021-03-25 04:52:36,128 INFO L111 eAbstractionObserver]: Analyzing ICFG rfi001_pso.oepc.i [2021-03-25 04:52:36,133 INFO L149 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-03-25 04:52:36,136 INFO L161 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2021-03-25 04:52:36,137 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-03-25 04:52:36,177 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:52:36,178 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:52:36,178 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:52:36,178 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:52:36,178 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:52:36,178 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:52:36,178 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:52:36,178 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:52:36,179 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:52:36,179 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:52:36,179 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:52:36,179 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:52:36,179 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:52:36,179 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:52:36,180 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:52:36,180 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:52:36,180 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:52:36,180 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:52:36,180 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:52:36,180 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:52:36,180 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:52:36,180 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:52:36,181 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:52:36,181 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:52:36,181 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:52:36,181 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:52:36,181 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:52:36,181 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:52:36,181 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:52:36,182 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:52:36,182 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:52:36,182 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:52:36,182 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:52:36,182 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:52:36,183 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:52:36,183 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:52:36,183 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:52:36,183 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:52:36,183 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:52:36,183 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:52:36,183 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:52:36,183 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:52:36,184 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~nondet11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:52:36,184 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~nondet12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:52:36,184 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:52:36,184 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:52:36,184 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:52:36,184 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite25| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:52:36,184 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite24| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:52:36,184 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite27| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:52:36,184 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:52:36,185 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:52:36,185 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite28| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:52:36,185 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:52:36,185 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:52:36,185 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:52:36,185 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:52:36,185 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~nondet11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:52:36,185 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~nondet12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:52:36,185 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:52:36,185 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:52:36,186 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:52:36,186 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:52:36,186 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:52:36,186 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:52:36,186 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:52:36,186 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:52:36,186 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:52:36,186 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:52:36,186 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:52:36,186 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite23| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:52:36,187 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:52:36,187 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite25| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:52:36,187 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite24| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:52:36,187 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite27| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:52:36,187 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite26| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:52:36,187 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite29| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:52:36,187 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite28| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:52:36,187 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:52:36,187 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:52:36,189 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~nondet11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:52:36,189 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~nondet12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:52:36,189 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:52:36,189 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:52:36,189 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:52:36,190 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite25| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:52:36,190 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite24| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:52:36,190 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite27| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:52:36,190 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:52:36,190 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:52:36,190 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite28| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:52:36,190 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:52:36,190 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:52:36,190 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:52:36,190 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:52:36,191 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~nondet11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:52:36,191 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~nondet12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:52:36,191 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:52:36,191 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:52:36,191 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:52:36,191 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:52:36,191 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:52:36,191 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:52:36,191 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:52:36,191 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:52:36,192 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:52:36,192 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:52:36,192 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:52:36,192 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite23| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:52:36,192 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:52:36,192 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite25| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:52:36,192 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite24| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:52:36,192 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite27| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:52:36,192 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite26| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:52:36,193 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite29| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:52:36,193 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite28| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:52:36,193 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:52:36,193 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:52:36,195 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:52:36,195 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:52:36,195 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:52:36,195 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:52:36,195 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite38| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:52:36,195 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:52:36,195 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:52:36,195 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:52:36,196 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:52:36,196 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:52:36,196 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:52:36,196 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite38| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:52:36,196 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:52:36,196 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:52:36,196 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:52:36,197 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:52:36,197 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:52:36,197 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:52:36,199 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:52:36,199 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:52:36,199 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:52:36,199 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:52:36,199 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:52:36,199 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:52:36,199 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:52:36,199 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:52:36,200 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:52:36,200 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:52:36,200 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:52:36,200 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:52:36,201 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite29| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:52:36,202 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite23| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:52:36,202 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite24| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:52:36,202 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:52:36,202 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:52:36,202 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite27| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:52:36,202 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite28| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:52:36,202 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite25| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:52:36,202 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite26| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:52:36,203 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~nondet12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:52:36,203 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:52:36,203 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~nondet11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:52:36,203 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:52:36,203 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:52:36,203 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:52:36,203 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:52:36,203 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:52:36,204 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:52:36,204 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:52:36,204 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:52:36,204 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:52:36,204 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:52:36,204 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite38| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:52:36,204 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:52:36,204 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:52:36,204 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:52:36,205 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:52:36,205 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:52:36,205 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:52:36,205 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:52:36,205 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:52:36,205 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:52:36,205 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:52:36,207 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-03-25 04:52:36,222 INFO L253 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2021-03-25 04:52:36,239 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-03-25 04:52:36,239 INFO L377 AbstractCegarLoop]: Hoare is false [2021-03-25 04:52:36,239 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-03-25 04:52:36,239 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-03-25 04:52:36,239 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-03-25 04:52:36,239 INFO L381 AbstractCegarLoop]: Difference is false [2021-03-25 04:52:36,240 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-03-25 04:52:36,240 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-03-25 04:52:36,255 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 89 places, 84 transitions, 178 flow [2021-03-25 04:52:36,294 INFO L129 PetriNetUnfolder]: 2/82 cut-off events. [2021-03-25 04:52:36,294 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-25 04:52:36,307 INFO L84 FinitePrefix]: Finished finitePrefix Result has 89 conditions, 82 events. 2/82 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 50 event pairs, 0 based on Foata normal form. 0/78 useless extension candidates. Maximal degree in co-relation 48. Up to 2 conditions per place. [2021-03-25 04:52:36,307 INFO L82 GeneralOperation]: Start removeDead. Operand has 89 places, 84 transitions, 178 flow [2021-03-25 04:52:36,313 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 87 places, 82 transitions, 170 flow [2021-03-25 04:52:36,314 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 04:52:36,322 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 87 places, 82 transitions, 170 flow [2021-03-25 04:52:36,326 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 87 places, 82 transitions, 170 flow [2021-03-25 04:52:36,328 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 87 places, 82 transitions, 170 flow [2021-03-25 04:52:36,350 INFO L129 PetriNetUnfolder]: 2/82 cut-off events. [2021-03-25 04:52:36,350 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-25 04:52:36,351 INFO L84 FinitePrefix]: Finished finitePrefix Result has 89 conditions, 82 events. 2/82 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 52 event pairs, 0 based on Foata normal form. 0/78 useless extension candidates. Maximal degree in co-relation 48. Up to 2 conditions per place. [2021-03-25 04:52:36,353 INFO L142 LiptonReduction]: Number of co-enabled transitions 1058 [2021-03-25 04:52:37,234 WARN L205 SmtUtils]: Spent 226.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 58 [2021-03-25 04:52:37,672 WARN L205 SmtUtils]: Spent 363.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 86 [2021-03-25 04:52:37,795 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 83 [2021-03-25 04:52:38,486 INFO L154 LiptonReduction]: Checked pairs total: 1587 [2021-03-25 04:52:38,486 INFO L156 LiptonReduction]: Total number of compositions: 57 [2021-03-25 04:52:38,488 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 2175 [2021-03-25 04:52:38,496 INFO L129 PetriNetUnfolder]: 0/10 cut-off events. [2021-03-25 04:52:38,496 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-25 04:52:38,496 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 04:52:38,497 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 04:52:38,497 INFO L428 AbstractCegarLoop]: === Iteration 1 === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P0Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-25 04:52:38,501 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 04:52:38,501 INFO L82 PathProgramCache]: Analyzing trace with hash 815426551, now seen corresponding path program 1 times [2021-03-25 04:52:38,508 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 04:52:38,508 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [952216771] [2021-03-25 04:52:38,508 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 04:52:38,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 04:52:38,682 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:52:38,683 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 04:52:38,684 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:52:38,684 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 04:52:38,690 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 04:52:38,691 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [952216771] [2021-03-25 04:52:38,691 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 04:52:38,691 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-03-25 04:52:38,692 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [464276896] [2021-03-25 04:52:38,698 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-25 04:52:38,699 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 04:52:38,708 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-25 04:52:38,710 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-25 04:52:38,711 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 121 out of 141 [2021-03-25 04:52:38,713 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 37 places, 31 transitions, 68 flow. Second operand has 3 states, 3 states have (on average 121.66666666666667) internal successors, (365), 3 states have internal predecessors, (365), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:52:38,713 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 04:52:38,713 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 121 of 141 [2021-03-25 04:52:38,714 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 04:52:38,790 INFO L129 PetriNetUnfolder]: 16/87 cut-off events. [2021-03-25 04:52:38,791 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-25 04:52:38,791 INFO L84 FinitePrefix]: Finished finitePrefix Result has 129 conditions, 87 events. 16/87 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 311 event pairs, 11 based on Foata normal form. 8/86 useless extension candidates. Maximal degree in co-relation 114. Up to 27 conditions per place. [2021-03-25 04:52:38,792 INFO L132 encePairwiseOnDemand]: 137/141 looper letters, 7 selfloop transitions, 2 changer transitions 0/31 dead transitions. [2021-03-25 04:52:38,792 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 37 places, 31 transitions, 86 flow [2021-03-25 04:52:38,793 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-25 04:52:38,795 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-25 04:52:38,801 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 375 transitions. [2021-03-25 04:52:38,803 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8865248226950354 [2021-03-25 04:52:38,804 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 375 transitions. [2021-03-25 04:52:38,804 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 375 transitions. [2021-03-25 04:52:38,805 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 04:52:38,807 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 375 transitions. [2021-03-25 04:52:38,811 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 125.0) internal successors, (375), 3 states have internal predecessors, (375), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:52:38,815 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 141.0) internal successors, (564), 4 states have internal predecessors, (564), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:52:38,815 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 141.0) internal successors, (564), 4 states have internal predecessors, (564), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:52:38,817 INFO L185 Difference]: Start difference. First operand has 37 places, 31 transitions, 68 flow. Second operand 3 states and 375 transitions. [2021-03-25 04:52:38,818 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 37 places, 31 transitions, 86 flow [2021-03-25 04:52:38,819 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 35 places, 31 transitions, 84 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-03-25 04:52:38,821 INFO L241 Difference]: Finished difference. Result has 35 places, 28 transitions, 64 flow [2021-03-25 04:52:38,822 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=141, PETRI_DIFFERENCE_MINUEND_FLOW=60, PETRI_DIFFERENCE_MINUEND_PLACES=33, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=28, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=26, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=64, PETRI_PLACES=35, PETRI_TRANSITIONS=28} [2021-03-25 04:52:38,823 INFO L343 CegarLoopForPetriNet]: 37 programPoint places, -2 predicate places. [2021-03-25 04:52:38,823 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 04:52:38,823 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 35 places, 28 transitions, 64 flow [2021-03-25 04:52:38,823 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 35 places, 28 transitions, 64 flow [2021-03-25 04:52:38,824 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 35 places, 28 transitions, 64 flow [2021-03-25 04:52:38,828 INFO L129 PetriNetUnfolder]: 0/28 cut-off events. [2021-03-25 04:52:38,828 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-25 04:52:38,828 INFO L84 FinitePrefix]: Finished finitePrefix Result has 36 conditions, 28 events. 0/28 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 30 event pairs, 0 based on Foata normal form. 0/26 useless extension candidates. Maximal degree in co-relation 0. Up to 2 conditions per place. [2021-03-25 04:52:38,828 INFO L142 LiptonReduction]: Number of co-enabled transitions 218 [2021-03-25 04:52:39,740 INFO L154 LiptonReduction]: Checked pairs total: 664 [2021-03-25 04:52:39,740 INFO L156 LiptonReduction]: Total number of compositions: 9 [2021-03-25 04:52:39,741 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 918 [2021-03-25 04:52:39,741 INFO L480 AbstractCegarLoop]: Abstraction has has 27 places, 20 transitions, 48 flow [2021-03-25 04:52:39,742 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 121.66666666666667) internal successors, (365), 3 states have internal predecessors, (365), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:52:39,742 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 04:52:39,742 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 04:52:39,742 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-03-25 04:52:39,742 INFO L428 AbstractCegarLoop]: === Iteration 2 === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P0Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-25 04:52:39,743 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 04:52:39,743 INFO L82 PathProgramCache]: Analyzing trace with hash -1388665869, now seen corresponding path program 1 times [2021-03-25 04:52:39,743 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 04:52:39,743 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1034220675] [2021-03-25 04:52:39,743 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 04:52:39,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 04:52:39,849 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:52:39,849 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 04:52:39,850 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:52:39,850 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 04:52:39,860 INFO L142 QuantifierPusher]: treesize reduction 9, result has 30.8 percent of original size [2021-03-25 04:52:39,860 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-25 04:52:39,864 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 04:52:39,864 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1034220675] [2021-03-25 04:52:39,864 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 04:52:39,864 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-25 04:52:39,864 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1767229763] [2021-03-25 04:52:39,865 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-25 04:52:39,865 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 04:52:39,868 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-25 04:52:39,869 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-03-25 04:52:39,871 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 126 out of 150 [2021-03-25 04:52:39,871 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 27 places, 20 transitions, 48 flow. Second operand has 4 states, 4 states have (on average 126.75) internal successors, (507), 4 states have internal predecessors, (507), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:52:39,871 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 04:52:39,871 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 126 of 150 [2021-03-25 04:52:39,871 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 04:52:39,905 INFO L129 PetriNetUnfolder]: 7/44 cut-off events. [2021-03-25 04:52:39,906 INFO L130 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2021-03-25 04:52:39,907 INFO L84 FinitePrefix]: Finished finitePrefix Result has 71 conditions, 44 events. 7/44 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 115 event pairs, 1 based on Foata normal form. 0/39 useless extension candidates. Maximal degree in co-relation 61. Up to 10 conditions per place. [2021-03-25 04:52:39,907 INFO L132 encePairwiseOnDemand]: 145/150 looper letters, 3 selfloop transitions, 3 changer transitions 7/27 dead transitions. [2021-03-25 04:52:39,907 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 31 places, 27 transitions, 86 flow [2021-03-25 04:52:39,908 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-25 04:52:39,908 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-03-25 04:52:39,911 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 643 transitions. [2021-03-25 04:52:39,912 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8573333333333333 [2021-03-25 04:52:39,912 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 643 transitions. [2021-03-25 04:52:39,912 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 643 transitions. [2021-03-25 04:52:39,912 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 04:52:39,912 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 643 transitions. [2021-03-25 04:52:39,916 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 128.6) internal successors, (643), 5 states have internal predecessors, (643), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:52:39,920 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 150.0) internal successors, (900), 6 states have internal predecessors, (900), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:52:39,921 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 150.0) internal successors, (900), 6 states have internal predecessors, (900), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:52:39,921 INFO L185 Difference]: Start difference. First operand has 27 places, 20 transitions, 48 flow. Second operand 5 states and 643 transitions. [2021-03-25 04:52:39,921 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 31 places, 27 transitions, 86 flow [2021-03-25 04:52:39,922 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 29 places, 27 transitions, 82 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-03-25 04:52:39,922 INFO L241 Difference]: Finished difference. Result has 31 places, 20 transitions, 63 flow [2021-03-25 04:52:39,922 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=150, PETRI_DIFFERENCE_MINUEND_FLOW=44, PETRI_DIFFERENCE_MINUEND_PLACES=25, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=20, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=17, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=63, PETRI_PLACES=31, PETRI_TRANSITIONS=20} [2021-03-25 04:52:39,923 INFO L343 CegarLoopForPetriNet]: 37 programPoint places, -6 predicate places. [2021-03-25 04:52:39,923 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 04:52:39,923 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 31 places, 20 transitions, 63 flow [2021-03-25 04:52:39,924 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 31 places, 20 transitions, 63 flow [2021-03-25 04:52:39,924 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 27 places, 20 transitions, 63 flow [2021-03-25 04:52:39,928 INFO L129 PetriNetUnfolder]: 3/28 cut-off events. [2021-03-25 04:52:39,928 INFO L130 PetriNetUnfolder]: For 5/5 co-relation queries the response was YES. [2021-03-25 04:52:39,928 INFO L84 FinitePrefix]: Finished finitePrefix Result has 52 conditions, 28 events. 3/28 cut-off events. For 5/5 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 59 event pairs, 1 based on Foata normal form. 0/26 useless extension candidates. Maximal degree in co-relation 42. Up to 10 conditions per place. [2021-03-25 04:52:39,928 INFO L142 LiptonReduction]: Number of co-enabled transitions 134 [2021-03-25 04:52:40,228 WARN L205 SmtUtils]: Spent 298.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 110 [2021-03-25 04:52:40,364 WARN L205 SmtUtils]: Spent 134.00 ms on a formula simplification that was a NOOP. DAG size: 106 [2021-03-25 04:52:40,615 WARN L205 SmtUtils]: Spent 249.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 110 [2021-03-25 04:52:40,743 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 106 [2021-03-25 04:52:40,749 INFO L154 LiptonReduction]: Checked pairs total: 260 [2021-03-25 04:52:40,750 INFO L156 LiptonReduction]: Total number of compositions: 1 [2021-03-25 04:52:40,750 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 827 [2021-03-25 04:52:40,750 INFO L480 AbstractCegarLoop]: Abstraction has has 26 places, 19 transitions, 61 flow [2021-03-25 04:52:40,751 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 126.75) internal successors, (507), 4 states have internal predecessors, (507), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:52:40,751 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 04:52:40,751 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 04:52:40,751 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-03-25 04:52:40,751 INFO L428 AbstractCegarLoop]: === Iteration 3 === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P0Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-25 04:52:40,752 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 04:52:40,752 INFO L82 PathProgramCache]: Analyzing trace with hash 746730835, now seen corresponding path program 1 times [2021-03-25 04:52:40,752 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 04:52:40,752 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [918889559] [2021-03-25 04:52:40,752 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 04:52:40,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 04:52:40,825 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:52:40,826 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 04:52:40,828 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 04:52:40,828 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [918889559] [2021-03-25 04:52:40,829 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 04:52:40,829 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-03-25 04:52:40,829 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [324305347] [2021-03-25 04:52:40,829 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-25 04:52:40,829 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 04:52:40,830 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-25 04:52:40,830 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-25 04:52:40,834 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 131 out of 151 [2021-03-25 04:52:40,835 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 26 places, 19 transitions, 61 flow. Second operand has 3 states, 3 states have (on average 131.66666666666666) internal successors, (395), 3 states have internal predecessors, (395), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:52:40,835 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 04:52:40,835 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 131 of 151 [2021-03-25 04:52:40,835 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 04:52:40,844 INFO L129 PetriNetUnfolder]: 2/25 cut-off events. [2021-03-25 04:52:40,844 INFO L130 PetriNetUnfolder]: For 8/8 co-relation queries the response was YES. [2021-03-25 04:52:40,844 INFO L84 FinitePrefix]: Finished finitePrefix Result has 52 conditions, 25 events. 2/25 cut-off events. For 8/8 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 45 event pairs, 0 based on Foata normal form. 2/26 useless extension candidates. Maximal degree in co-relation 41. Up to 8 conditions per place. [2021-03-25 04:52:40,844 INFO L132 encePairwiseOnDemand]: 148/151 looper letters, 1 selfloop transitions, 2 changer transitions 0/19 dead transitions. [2021-03-25 04:52:40,844 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 28 places, 19 transitions, 67 flow [2021-03-25 04:52:40,845 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-25 04:52:40,845 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-25 04:52:40,846 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 397 transitions. [2021-03-25 04:52:40,846 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8763796909492274 [2021-03-25 04:52:40,846 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 397 transitions. [2021-03-25 04:52:40,846 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 397 transitions. [2021-03-25 04:52:40,846 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 04:52:40,846 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 397 transitions. [2021-03-25 04:52:40,847 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 132.33333333333334) internal successors, (397), 3 states have internal predecessors, (397), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:52:40,848 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 151.0) internal successors, (604), 4 states have internal predecessors, (604), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:52:40,849 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 151.0) internal successors, (604), 4 states have internal predecessors, (604), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:52:40,849 INFO L185 Difference]: Start difference. First operand has 26 places, 19 transitions, 61 flow. Second operand 3 states and 397 transitions. [2021-03-25 04:52:40,849 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 28 places, 19 transitions, 67 flow [2021-03-25 04:52:40,849 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 26 places, 19 transitions, 60 flow, removed 2 selfloop flow, removed 2 redundant places. [2021-03-25 04:52:40,850 INFO L241 Difference]: Finished difference. Result has 27 places, 19 transitions, 62 flow [2021-03-25 04:52:40,850 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=151, PETRI_DIFFERENCE_MINUEND_FLOW=54, PETRI_DIFFERENCE_MINUEND_PLACES=24, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=19, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=17, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=62, PETRI_PLACES=27, PETRI_TRANSITIONS=19} [2021-03-25 04:52:40,850 INFO L343 CegarLoopForPetriNet]: 37 programPoint places, -10 predicate places. [2021-03-25 04:52:40,850 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 04:52:40,851 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 27 places, 19 transitions, 62 flow [2021-03-25 04:52:40,851 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 27 places, 19 transitions, 62 flow [2021-03-25 04:52:40,851 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 27 places, 19 transitions, 62 flow [2021-03-25 04:52:40,854 INFO L129 PetriNetUnfolder]: 2/25 cut-off events. [2021-03-25 04:52:40,855 INFO L130 PetriNetUnfolder]: For 2/3 co-relation queries the response was YES. [2021-03-25 04:52:40,855 INFO L84 FinitePrefix]: Finished finitePrefix Result has 48 conditions, 25 events. 2/25 cut-off events. For 2/3 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 45 event pairs, 0 based on Foata normal form. 0/24 useless extension candidates. Maximal degree in co-relation 38. Up to 8 conditions per place. [2021-03-25 04:52:40,855 INFO L142 LiptonReduction]: Number of co-enabled transitions 132 [2021-03-25 04:52:40,885 INFO L154 LiptonReduction]: Checked pairs total: 271 [2021-03-25 04:52:40,885 INFO L156 LiptonReduction]: Total number of compositions: 1 [2021-03-25 04:52:40,885 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 35 [2021-03-25 04:52:40,886 INFO L480 AbstractCegarLoop]: Abstraction has has 27 places, 19 transitions, 65 flow [2021-03-25 04:52:40,886 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 131.66666666666666) internal successors, (395), 3 states have internal predecessors, (395), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:52:40,886 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 04:52:40,886 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 04:52:40,886 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-03-25 04:52:40,886 INFO L428 AbstractCegarLoop]: === Iteration 4 === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P0Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-25 04:52:40,887 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 04:52:40,887 INFO L82 PathProgramCache]: Analyzing trace with hash -1773481509, now seen corresponding path program 1 times [2021-03-25 04:52:40,887 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 04:52:40,887 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1644845947] [2021-03-25 04:52:40,887 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 04:52:40,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 04:52:40,946 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:52:40,947 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 04:52:40,951 INFO L142 QuantifierPusher]: treesize reduction 11, result has 45.0 percent of original size [2021-03-25 04:52:40,951 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 04:52:40,957 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:52:40,963 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 04:52:40,964 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 04:52:40,964 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1644845947] [2021-03-25 04:52:40,964 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 04:52:40,964 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-25 04:52:40,964 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1557954254] [2021-03-25 04:52:40,965 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-25 04:52:40,965 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 04:52:40,965 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-25 04:52:40,965 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-03-25 04:52:40,966 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 123 out of 152 [2021-03-25 04:52:40,967 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 27 places, 19 transitions, 65 flow. Second operand has 4 states, 4 states have (on average 123.75) internal successors, (495), 4 states have internal predecessors, (495), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:52:40,967 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 04:52:40,967 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 123 of 152 [2021-03-25 04:52:40,967 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 04:52:41,004 INFO L129 PetriNetUnfolder]: 25/72 cut-off events. [2021-03-25 04:52:41,005 INFO L130 PetriNetUnfolder]: For 7/8 co-relation queries the response was YES. [2021-03-25 04:52:41,005 INFO L84 FinitePrefix]: Finished finitePrefix Result has 154 conditions, 72 events. 25/72 cut-off events. For 7/8 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 230 event pairs, 2 based on Foata normal form. 6/66 useless extension candidates. Maximal degree in co-relation 142. Up to 40 conditions per place. [2021-03-25 04:52:41,005 INFO L132 encePairwiseOnDemand]: 147/152 looper letters, 4 selfloop transitions, 3 changer transitions 7/27 dead transitions. [2021-03-25 04:52:41,005 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 31 places, 27 transitions, 109 flow [2021-03-25 04:52:41,006 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-25 04:52:41,006 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-03-25 04:52:41,008 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 631 transitions. [2021-03-25 04:52:41,009 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8302631578947368 [2021-03-25 04:52:41,010 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 631 transitions. [2021-03-25 04:52:41,010 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 631 transitions. [2021-03-25 04:52:41,010 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 04:52:41,010 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 631 transitions. [2021-03-25 04:52:41,012 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 126.2) internal successors, (631), 5 states have internal predecessors, (631), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:52:41,013 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 152.0) internal successors, (912), 6 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) [2021-03-25 04:52:41,013 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 152.0) internal successors, (912), 6 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) [2021-03-25 04:52:41,013 INFO L185 Difference]: Start difference. First operand has 27 places, 19 transitions, 65 flow. Second operand 5 states and 631 transitions. [2021-03-25 04:52:41,014 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 31 places, 27 transitions, 109 flow [2021-03-25 04:52:41,014 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 29 places, 27 transitions, 103 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-03-25 04:52:41,015 INFO L241 Difference]: Finished difference. Result has 32 places, 20 transitions, 84 flow [2021-03-25 04:52:41,015 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=152, PETRI_DIFFERENCE_MINUEND_FLOW=59, PETRI_DIFFERENCE_MINUEND_PLACES=25, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=19, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=16, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=84, PETRI_PLACES=32, PETRI_TRANSITIONS=20} [2021-03-25 04:52:41,015 INFO L343 CegarLoopForPetriNet]: 37 programPoint places, -5 predicate places. [2021-03-25 04:52:41,015 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 04:52:41,015 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 32 places, 20 transitions, 84 flow [2021-03-25 04:52:41,016 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 32 places, 20 transitions, 84 flow [2021-03-25 04:52:41,016 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 29 places, 20 transitions, 84 flow [2021-03-25 04:52:41,022 INFO L129 PetriNetUnfolder]: 14/48 cut-off events. [2021-03-25 04:52:41,022 INFO L130 PetriNetUnfolder]: For 22/23 co-relation queries the response was YES. [2021-03-25 04:52:41,022 INFO L84 FinitePrefix]: Finished finitePrefix Result has 125 conditions, 48 events. 14/48 cut-off events. For 22/23 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 120 event pairs, 2 based on Foata normal form. 0/46 useless extension candidates. Maximal degree in co-relation 112. Up to 22 conditions per place. [2021-03-25 04:52:41,023 INFO L142 LiptonReduction]: Number of co-enabled transitions 92 [2021-03-25 04:52:41,050 INFO L154 LiptonReduction]: Checked pairs total: 171 [2021-03-25 04:52:41,050 INFO L156 LiptonReduction]: Total number of compositions: 1 [2021-03-25 04:52:41,050 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 35 [2021-03-25 04:52:41,051 INFO L480 AbstractCegarLoop]: Abstraction has has 28 places, 19 transitions, 82 flow [2021-03-25 04:52:41,051 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 123.75) internal successors, (495), 4 states have internal predecessors, (495), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:52:41,051 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 04:52:41,051 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 04:52:41,051 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-03-25 04:52:41,051 INFO L428 AbstractCegarLoop]: === Iteration 5 === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P0Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-25 04:52:41,052 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 04:52:41,052 INFO L82 PathProgramCache]: Analyzing trace with hash 38532748, now seen corresponding path program 1 times [2021-03-25 04:52:41,052 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 04:52:41,052 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1155945349] [2021-03-25 04:52:41,052 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 04:52:41,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 04:52:41,116 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:52:41,116 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 04:52:41,117 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:52:41,117 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 04:52:41,120 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 04:52:41,120 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1155945349] [2021-03-25 04:52:41,121 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 04:52:41,121 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-03-25 04:52:41,121 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [496447449] [2021-03-25 04:52:41,121 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-25 04:52:41,121 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 04:52:41,122 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-25 04:52:41,122 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-25 04:52:41,123 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 131 out of 153 [2021-03-25 04:52:41,123 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 28 places, 19 transitions, 82 flow. Second operand has 3 states, 3 states have (on average 132.33333333333334) internal successors, (397), 3 states have internal predecessors, (397), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:52:41,123 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 04:52:41,123 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 131 of 153 [2021-03-25 04:52:41,123 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 04:52:41,141 INFO L129 PetriNetUnfolder]: 10/50 cut-off events. [2021-03-25 04:52:41,142 INFO L130 PetriNetUnfolder]: For 40/46 co-relation queries the response was YES. [2021-03-25 04:52:41,142 INFO L84 FinitePrefix]: Finished finitePrefix Result has 141 conditions, 50 events. 10/50 cut-off events. For 40/46 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 153 event pairs, 4 based on Foata normal form. 5/54 useless extension candidates. Maximal degree in co-relation 126. Up to 24 conditions per place. [2021-03-25 04:52:41,142 INFO L132 encePairwiseOnDemand]: 150/153 looper letters, 3 selfloop transitions, 3 changer transitions 0/19 dead transitions. [2021-03-25 04:52:41,142 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 30 places, 19 transitions, 94 flow [2021-03-25 04:52:41,142 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-25 04:52:41,143 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-25 04:52:41,143 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 399 transitions. [2021-03-25 04:52:41,145 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.869281045751634 [2021-03-25 04:52:41,145 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 399 transitions. [2021-03-25 04:52:41,145 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 399 transitions. [2021-03-25 04:52:41,146 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 04:52:41,146 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 399 transitions. [2021-03-25 04:52:41,146 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 133.0) internal successors, (399), 3 states have internal predecessors, (399), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:52:41,147 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 153.0) internal successors, (612), 4 states have internal predecessors, (612), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:52:41,147 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 153.0) internal successors, (612), 4 states have internal predecessors, (612), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:52:41,147 INFO L185 Difference]: Start difference. First operand has 28 places, 19 transitions, 82 flow. Second operand 3 states and 399 transitions. [2021-03-25 04:52:41,148 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 30 places, 19 transitions, 94 flow [2021-03-25 04:52:41,148 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 28 places, 19 transitions, 89 flow, removed 1 selfloop flow, removed 2 redundant places. [2021-03-25 04:52:41,149 INFO L241 Difference]: Finished difference. Result has 29 places, 19 transitions, 88 flow [2021-03-25 04:52:41,149 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=153, PETRI_DIFFERENCE_MINUEND_FLOW=77, PETRI_DIFFERENCE_MINUEND_PLACES=26, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=19, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=16, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=88, PETRI_PLACES=29, PETRI_TRANSITIONS=19} [2021-03-25 04:52:41,149 INFO L343 CegarLoopForPetriNet]: 37 programPoint places, -8 predicate places. [2021-03-25 04:52:41,149 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 04:52:41,149 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 29 places, 19 transitions, 88 flow [2021-03-25 04:52:41,149 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 29 places, 19 transitions, 88 flow [2021-03-25 04:52:41,150 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 29 places, 19 transitions, 88 flow [2021-03-25 04:52:41,155 INFO L129 PetriNetUnfolder]: 10/50 cut-off events. [2021-03-25 04:52:41,155 INFO L130 PetriNetUnfolder]: For 34/36 co-relation queries the response was YES. [2021-03-25 04:52:41,155 INFO L84 FinitePrefix]: Finished finitePrefix Result has 129 conditions, 50 events. 10/50 cut-off events. For 34/36 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 157 event pairs, 4 based on Foata normal form. 0/49 useless extension candidates. Maximal degree in co-relation 116. Up to 24 conditions per place. [2021-03-25 04:52:41,156 INFO L142 LiptonReduction]: Number of co-enabled transitions 80 [2021-03-25 04:52:41,157 INFO L154 LiptonReduction]: Checked pairs total: 89 [2021-03-25 04:52:41,157 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 04:52:41,157 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 8 [2021-03-25 04:52:41,158 INFO L480 AbstractCegarLoop]: Abstraction has has 29 places, 19 transitions, 88 flow [2021-03-25 04:52:41,158 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 132.33333333333334) internal successors, (397), 3 states have internal predecessors, (397), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:52:41,158 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 04:52:41,158 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 04:52:41,158 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-03-25 04:52:41,159 INFO L428 AbstractCegarLoop]: === Iteration 6 === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P0Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-25 04:52:41,159 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 04:52:41,159 INFO L82 PathProgramCache]: Analyzing trace with hash -421198345, now seen corresponding path program 1 times [2021-03-25 04:52:41,159 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 04:52:41,159 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1400264372] [2021-03-25 04:52:41,159 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 04:52:41,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 04:52:41,274 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:52:41,274 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 04:52:41,277 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:52:41,278 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 04:52:41,283 INFO L142 QuantifierPusher]: treesize reduction 11, result has 45.0 percent of original size [2021-03-25 04:52:41,284 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 04:52:41,291 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:52:41,291 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 04:52:41,292 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 04:52:41,292 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1400264372] [2021-03-25 04:52:41,292 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 04:52:41,292 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-03-25 04:52:41,293 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1636918101] [2021-03-25 04:52:41,293 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-03-25 04:52:41,293 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 04:52:41,293 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-03-25 04:52:41,294 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-03-25 04:52:41,295 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 124 out of 153 [2021-03-25 04:52:41,296 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 29 places, 19 transitions, 88 flow. Second operand has 5 states, 5 states have (on average 124.8) internal successors, (624), 5 states have internal predecessors, (624), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:52:41,296 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 04:52:41,296 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 124 of 153 [2021-03-25 04:52:41,296 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 04:52:41,338 INFO L129 PetriNetUnfolder]: 4/36 cut-off events. [2021-03-25 04:52:41,338 INFO L130 PetriNetUnfolder]: For 27/33 co-relation queries the response was YES. [2021-03-25 04:52:41,339 INFO L84 FinitePrefix]: Finished finitePrefix Result has 112 conditions, 36 events. 4/36 cut-off events. For 27/33 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 87 event pairs, 0 based on Foata normal form. 9/45 useless extension candidates. Maximal degree in co-relation 97. Up to 19 conditions per place. [2021-03-25 04:52:41,340 INFO L132 encePairwiseOnDemand]: 148/153 looper letters, 2 selfloop transitions, 5 changer transitions 5/22 dead transitions. [2021-03-25 04:52:41,340 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 34 places, 22 transitions, 124 flow [2021-03-25 04:52:41,340 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-03-25 04:52:41,340 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-03-25 04:52:41,342 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 756 transitions. [2021-03-25 04:52:41,342 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8235294117647058 [2021-03-25 04:52:41,342 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 756 transitions. [2021-03-25 04:52:41,342 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 756 transitions. [2021-03-25 04:52:41,343 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 04:52:41,343 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 756 transitions. [2021-03-25 04:52:41,345 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 126.0) internal successors, (756), 6 states have internal predecessors, (756), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:52:41,346 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 153.0) internal successors, (1071), 7 states have internal predecessors, (1071), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:52:41,346 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 153.0) internal successors, (1071), 7 states have internal predecessors, (1071), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:52:41,347 INFO L185 Difference]: Start difference. First operand has 29 places, 19 transitions, 88 flow. Second operand 6 states and 756 transitions. [2021-03-25 04:52:41,347 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 34 places, 22 transitions, 124 flow [2021-03-25 04:52:41,348 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 32 places, 22 transitions, 104 flow, removed 7 selfloop flow, removed 2 redundant places. [2021-03-25 04:52:41,348 INFO L241 Difference]: Finished difference. Result has 35 places, 17 transitions, 82 flow [2021-03-25 04:52:41,349 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=153, PETRI_DIFFERENCE_MINUEND_FLOW=72, PETRI_DIFFERENCE_MINUEND_PLACES=27, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=19, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=14, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=82, PETRI_PLACES=35, PETRI_TRANSITIONS=17} [2021-03-25 04:52:41,349 INFO L343 CegarLoopForPetriNet]: 37 programPoint places, -2 predicate places. [2021-03-25 04:52:41,349 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 04:52:41,349 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 35 places, 17 transitions, 82 flow [2021-03-25 04:52:41,349 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 35 places, 17 transitions, 82 flow [2021-03-25 04:52:41,349 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 33 places, 17 transitions, 82 flow [2021-03-25 04:52:41,354 INFO L129 PetriNetUnfolder]: 1/17 cut-off events. [2021-03-25 04:52:41,354 INFO L130 PetriNetUnfolder]: For 11/11 co-relation queries the response was YES. [2021-03-25 04:52:41,354 INFO L84 FinitePrefix]: Finished finitePrefix Result has 52 conditions, 17 events. 1/17 cut-off events. For 11/11 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 8 event pairs, 0 based on Foata normal form. 0/17 useless extension candidates. Maximal degree in co-relation 37. Up to 6 conditions per place. [2021-03-25 04:52:41,355 INFO L142 LiptonReduction]: Number of co-enabled transitions 30 [2021-03-25 04:52:42,074 WARN L205 SmtUtils]: Spent 718.00 ms on a formula simplification. DAG size of input: 223 DAG size of output: 183 [2021-03-25 04:52:42,586 WARN L205 SmtUtils]: Spent 510.00 ms on a formula simplification. DAG size of input: 181 DAG size of output: 180 [2021-03-25 04:52:43,913 WARN L205 SmtUtils]: Spent 1.32 s on a formula simplification. DAG size of input: 307 DAG size of output: 263 [2021-03-25 04:52:44,471 WARN L205 SmtUtils]: Spent 555.00 ms on a formula simplification that was a NOOP. DAG size: 260 [2021-03-25 04:52:44,750 WARN L205 SmtUtils]: Spent 141.00 ms on a formula simplification that was a NOOP. DAG size: 104 [2021-03-25 04:52:44,917 WARN L205 SmtUtils]: Spent 166.00 ms on a formula simplification that was a NOOP. DAG size: 104 [2021-03-25 04:52:45,337 WARN L205 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 115 [2021-03-25 04:52:45,489 WARN L205 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 115 [2021-03-25 04:52:45,492 INFO L154 LiptonReduction]: Checked pairs total: 56 [2021-03-25 04:52:45,492 INFO L156 LiptonReduction]: Total number of compositions: 4 [2021-03-25 04:52:45,492 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 4143 [2021-03-25 04:52:45,492 INFO L480 AbstractCegarLoop]: Abstraction has has 29 places, 13 transitions, 74 flow [2021-03-25 04:52:45,493 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 124.8) internal successors, (624), 5 states have internal predecessors, (624), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:52:45,493 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 04:52:45,493 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 04:52:45,493 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-03-25 04:52:45,493 INFO L428 AbstractCegarLoop]: === Iteration 7 === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P0Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-25 04:52:45,493 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 04:52:45,494 INFO L82 PathProgramCache]: Analyzing trace with hash 1667805799, now seen corresponding path program 1 times [2021-03-25 04:52:45,494 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 04:52:45,494 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [848383004] [2021-03-25 04:52:45,494 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 04:52:45,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 04:52:45,583 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:52:45,583 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 04:52:45,588 INFO L142 QuantifierPusher]: treesize reduction 4, result has 87.9 percent of original size [2021-03-25 04:52:45,589 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-25 04:52:45,608 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:52:45,608 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 04:52:45,616 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:52:45,617 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 04:52:45,621 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 04:52:45,621 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [848383004] [2021-03-25 04:52:45,621 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 04:52:45,621 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-03-25 04:52:45,622 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [803854169] [2021-03-25 04:52:45,622 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-03-25 04:52:45,622 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 04:52:45,622 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-03-25 04:52:45,622 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-03-25 04:52:45,624 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 106 out of 157 [2021-03-25 04:52:45,624 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 29 places, 13 transitions, 74 flow. Second operand has 6 states, 6 states have (on average 107.16666666666667) internal successors, (643), 6 states have internal predecessors, (643), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:52:45,624 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 04:52:45,624 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 106 of 157 [2021-03-25 04:52:45,625 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 04:52:45,687 INFO L129 PetriNetUnfolder]: 3/23 cut-off events. [2021-03-25 04:52:45,687 INFO L130 PetriNetUnfolder]: For 74/77 co-relation queries the response was YES. [2021-03-25 04:52:45,687 INFO L84 FinitePrefix]: Finished finitePrefix Result has 83 conditions, 23 events. 3/23 cut-off events. For 74/77 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 40 event pairs, 0 based on Foata normal form. 4/27 useless extension candidates. Maximal degree in co-relation 65. Up to 11 conditions per place. [2021-03-25 04:52:45,688 INFO L132 encePairwiseOnDemand]: 152/157 looper letters, 3 selfloop transitions, 4 changer transitions 2/16 dead transitions. [2021-03-25 04:52:45,688 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 34 places, 16 transitions, 100 flow [2021-03-25 04:52:45,688 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-03-25 04:52:45,688 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-03-25 04:52:45,689 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 646 transitions. [2021-03-25 04:52:45,689 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6857749469214437 [2021-03-25 04:52:45,689 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 646 transitions. [2021-03-25 04:52:45,690 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 646 transitions. [2021-03-25 04:52:45,690 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 04:52:45,690 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 646 transitions. [2021-03-25 04:52:45,691 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 107.66666666666667) internal successors, (646), 6 states have internal predecessors, (646), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:52:45,693 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 157.0) internal successors, (1099), 7 states have internal predecessors, (1099), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:52:45,693 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 157.0) internal successors, (1099), 7 states have internal predecessors, (1099), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:52:45,693 INFO L185 Difference]: Start difference. First operand has 29 places, 13 transitions, 74 flow. Second operand 6 states and 646 transitions. [2021-03-25 04:52:45,693 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 34 places, 16 transitions, 100 flow [2021-03-25 04:52:45,695 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 27 places, 16 transitions, 80 flow, removed 5 selfloop flow, removed 7 redundant places. [2021-03-25 04:52:45,696 INFO L241 Difference]: Finished difference. Result has 28 places, 13 transitions, 66 flow [2021-03-25 04:52:45,696 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=157, PETRI_DIFFERENCE_MINUEND_FLOW=54, PETRI_DIFFERENCE_MINUEND_PLACES=22, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=13, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=9, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=66, PETRI_PLACES=28, PETRI_TRANSITIONS=13} [2021-03-25 04:52:45,696 INFO L343 CegarLoopForPetriNet]: 37 programPoint places, -9 predicate places. [2021-03-25 04:52:45,696 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 04:52:45,696 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 28 places, 13 transitions, 66 flow [2021-03-25 04:52:45,696 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 28 places, 13 transitions, 66 flow [2021-03-25 04:52:45,697 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 27 places, 13 transitions, 66 flow [2021-03-25 04:52:45,700 INFO L129 PetriNetUnfolder]: 1/15 cut-off events. [2021-03-25 04:52:45,700 INFO L130 PetriNetUnfolder]: For 12/12 co-relation queries the response was YES. [2021-03-25 04:52:45,700 INFO L84 FinitePrefix]: Finished finitePrefix Result has 46 conditions, 15 events. 1/15 cut-off events. For 12/12 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 10 event pairs, 0 based on Foata normal form. 0/15 useless extension candidates. Maximal degree in co-relation 34. Up to 5 conditions per place. [2021-03-25 04:52:45,700 INFO L142 LiptonReduction]: Number of co-enabled transitions 18 [2021-03-25 04:52:45,701 INFO L154 LiptonReduction]: Checked pairs total: 10 [2021-03-25 04:52:45,701 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 04:52:45,701 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 5 [2021-03-25 04:52:45,707 INFO L480 AbstractCegarLoop]: Abstraction has has 27 places, 13 transitions, 66 flow [2021-03-25 04:52:45,707 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 107.16666666666667) internal successors, (643), 6 states have internal predecessors, (643), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:52:45,707 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 04:52:45,707 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 04:52:45,707 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-03-25 04:52:45,707 INFO L428 AbstractCegarLoop]: === Iteration 8 === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P0Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-25 04:52:45,708 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 04:52:45,708 INFO L82 PathProgramCache]: Analyzing trace with hash -482621406, now seen corresponding path program 1 times [2021-03-25 04:52:45,708 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 04:52:45,708 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1668523635] [2021-03-25 04:52:45,708 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 04:52:45,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-03-25 04:52:45,778 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-03-25 04:52:45,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-03-25 04:52:45,841 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-03-25 04:52:45,874 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-03-25 04:52:45,874 INFO L634 BasicCegarLoop]: Counterexample might be feasible [2021-03-25 04:52:45,874 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-03-25 04:52:45,917 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.03 04:52:45 BasicIcfg [2021-03-25 04:52:45,917 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-03-25 04:52:45,918 INFO L168 Benchmark]: Toolchain (without parser) took 11893.02 ms. Allocated memory was 364.9 MB in the beginning and 580.9 MB in the end (delta: 216.0 MB). Free memory was 328.0 MB in the beginning and 370.7 MB in the end (delta: -42.7 MB). Peak memory consumption was 175.0 MB. Max. memory is 16.0 GB. [2021-03-25 04:52:45,918 INFO L168 Benchmark]: CDTParser took 0.51 ms. Allocated memory is still 364.9 MB. Free memory was 346.2 MB in the beginning and 346.1 MB in the end (delta: 73.9 kB). There was no memory consumed. Max. memory is 16.0 GB. [2021-03-25 04:52:45,919 INFO L168 Benchmark]: CACSL2BoogieTranslator took 483.45 ms. Allocated memory is still 364.9 MB. Free memory was 327.8 MB in the beginning and 324.8 MB in the end (delta: 2.9 MB). Peak memory consumption was 9.3 MB. Max. memory is 16.0 GB. [2021-03-25 04:52:45,919 INFO L168 Benchmark]: Boogie Procedure Inliner took 56.85 ms. Allocated memory is still 364.9 MB. Free memory was 324.8 MB in the beginning and 322.1 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-03-25 04:52:45,919 INFO L168 Benchmark]: Boogie Preprocessor took 28.69 ms. Allocated memory is still 364.9 MB. Free memory was 322.1 MB in the beginning and 320.0 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-03-25 04:52:45,919 INFO L168 Benchmark]: RCFGBuilder took 1521.73 ms. Allocated memory is still 364.9 MB. Free memory was 320.0 MB in the beginning and 310.0 MB in the end (delta: 10.0 MB). Peak memory consumption was 165.2 MB. Max. memory is 16.0 GB. [2021-03-25 04:52:45,920 INFO L168 Benchmark]: TraceAbstraction took 9795.07 ms. Allocated memory was 364.9 MB in the beginning and 580.9 MB in the end (delta: 216.0 MB). Free memory was 309.0 MB in the beginning and 370.7 MB in the end (delta: -61.7 MB). Peak memory consumption was 153.3 MB. Max. memory is 16.0 GB. [2021-03-25 04:52:45,921 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.51 ms. Allocated memory is still 364.9 MB. Free memory was 346.2 MB in the beginning and 346.1 MB in the end (delta: 73.9 kB). There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 483.45 ms. Allocated memory is still 364.9 MB. Free memory was 327.8 MB in the beginning and 324.8 MB in the end (delta: 2.9 MB). Peak memory consumption was 9.3 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 56.85 ms. Allocated memory is still 364.9 MB. Free memory was 324.8 MB in the beginning and 322.1 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 28.69 ms. Allocated memory is still 364.9 MB. Free memory was 322.1 MB in the beginning and 320.0 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * RCFGBuilder took 1521.73 ms. Allocated memory is still 364.9 MB. Free memory was 320.0 MB in the beginning and 310.0 MB in the end (delta: 10.0 MB). Peak memory consumption was 165.2 MB. Max. memory is 16.0 GB. * TraceAbstraction took 9795.07 ms. Allocated memory was 364.9 MB in the beginning and 580.9 MB in the end (delta: 216.0 MB). Free memory was 309.0 MB in the beginning and 370.7 MB in the end (delta: -61.7 MB). Peak memory consumption was 153.3 MB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 2160.2ms, 87 PlacesBefore, 37 PlacesAfterwards, 82 TransitionsBefore, 31 TransitionsAfterwards, 1058 CoEnabledTransitionPairs, 4 FixpointIterations, 28 TrivialSequentialCompositions, 27 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 1 ConcurrentYvCompositions, 1 ChoiceCompositions, 57 TotalNumberOfCompositions, 1587 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 899, positive: 849, positive conditional: 0, positive unconditional: 849, negative: 50, negative conditional: 0, negative unconditional: 50, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 482, positive: 467, positive conditional: 0, positive unconditional: 467, negative: 15, negative conditional: 0, negative unconditional: 15, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 482, positive: 467, positive conditional: 0, positive unconditional: 467, negative: 15, negative conditional: 0, negative unconditional: 15, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 899, positive: 382, positive conditional: 0, positive unconditional: 382, negative: 35, negative conditional: 0, negative unconditional: 35, unknown: 482, unknown conditional: 0, unknown unconditional: 482] , Statistics on independence cache: Total cache size (in pairs): 64, Positive cache size: 57, Positive conditional cache size: 0, Positive unconditional cache size: 57, Negative cache size: 7, Negative conditional cache size: 0, Negative unconditional cache size: 7 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 917.2ms, 35 PlacesBefore, 27 PlacesAfterwards, 28 TransitionsBefore, 20 TransitionsAfterwards, 218 CoEnabledTransitionPairs, 3 FixpointIterations, 5 TrivialSequentialCompositions, 4 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 9 TotalNumberOfCompositions, 664 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 264, positive: 208, positive conditional: 0, positive unconditional: 208, negative: 56, negative conditional: 0, negative unconditional: 56, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 47, positive: 34, positive conditional: 0, positive unconditional: 34, negative: 13, negative conditional: 0, negative unconditional: 13, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 47, positive: 34, positive conditional: 0, positive unconditional: 34, negative: 13, negative conditional: 0, negative unconditional: 13, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 264, positive: 174, positive conditional: 0, positive unconditional: 174, negative: 43, negative conditional: 0, negative unconditional: 43, unknown: 47, unknown conditional: 0, unknown unconditional: 47] , Statistics on independence cache: Total cache size (in pairs): 68, Positive cache size: 51, Positive conditional cache size: 0, Positive unconditional cache size: 51, Negative cache size: 17, Negative conditional cache size: 0, Negative unconditional cache size: 17 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 826.2ms, 31 PlacesBefore, 26 PlacesAfterwards, 20 TransitionsBefore, 19 TransitionsAfterwards, 134 CoEnabledTransitionPairs, 2 FixpointIterations, 1 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 TotalNumberOfCompositions, 260 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 94, positive: 66, positive conditional: 0, positive unconditional: 66, negative: 28, negative conditional: 0, negative unconditional: 28, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 5, positive: 3, positive conditional: 0, positive unconditional: 3, negative: 2, negative conditional: 0, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 5, positive: 3, positive conditional: 0, positive unconditional: 3, negative: 2, negative conditional: 0, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 94, positive: 63, positive conditional: 0, positive unconditional: 63, negative: 26, negative conditional: 0, negative unconditional: 26, unknown: 5, unknown conditional: 0, unknown unconditional: 5] , Statistics on independence cache: Total cache size (in pairs): 73, Positive cache size: 54, Positive conditional cache size: 0, Positive unconditional cache size: 54, Negative cache size: 19, Negative conditional cache size: 0, Negative unconditional cache size: 19 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 34.0ms, 27 PlacesBefore, 27 PlacesAfterwards, 19 TransitionsBefore, 19 TransitionsAfterwards, 132 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 1 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 TotalNumberOfCompositions, 271 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 111, positive: 84, positive conditional: 0, positive unconditional: 84, negative: 27, negative conditional: 0, negative unconditional: 27, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 3, positive: 3, positive conditional: 0, positive unconditional: 3, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 3, positive: 3, positive conditional: 0, positive unconditional: 3, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 111, positive: 81, positive conditional: 0, positive unconditional: 81, negative: 27, negative conditional: 0, negative unconditional: 27, unknown: 3, unknown conditional: 0, unknown unconditional: 3] , Statistics on independence cache: Total cache size (in pairs): 73, Positive cache size: 55, Positive conditional cache size: 0, Positive unconditional cache size: 55, Negative cache size: 18, Negative conditional cache size: 0, Negative unconditional cache size: 18 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 34.2ms, 32 PlacesBefore, 28 PlacesAfterwards, 20 TransitionsBefore, 19 TransitionsAfterwards, 92 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 1 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 TotalNumberOfCompositions, 171 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 68, positive: 48, positive conditional: 0, positive unconditional: 48, negative: 20, negative conditional: 0, negative unconditional: 20, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 68, positive: 48, positive conditional: 0, positive unconditional: 48, negative: 20, negative conditional: 0, negative unconditional: 20, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 59, Positive cache size: 43, Positive conditional cache size: 0, Positive unconditional cache size: 43, Negative cache size: 16, Negative conditional cache size: 0, Negative unconditional cache size: 16 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 7.8ms, 29 PlacesBefore, 29 PlacesAfterwards, 19 TransitionsBefore, 19 TransitionsAfterwards, 80 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 89 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 36, positive: 25, positive conditional: 0, positive unconditional: 25, negative: 11, negative conditional: 0, negative unconditional: 11, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 36, positive: 25, positive conditional: 0, positive unconditional: 25, negative: 11, negative conditional: 0, negative unconditional: 11, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 59, Positive cache size: 43, Positive conditional cache size: 0, Positive unconditional cache size: 43, Negative cache size: 16, Negative conditional cache size: 0, Negative unconditional cache size: 16 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 4142.5ms, 35 PlacesBefore, 29 PlacesAfterwards, 17 TransitionsBefore, 13 TransitionsAfterwards, 30 CoEnabledTransitionPairs, 3 FixpointIterations, 2 TrivialSequentialCompositions, 2 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 4 TotalNumberOfCompositions, 56 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 42, positive: 26, positive conditional: 0, positive unconditional: 26, negative: 16, negative conditional: 0, negative unconditional: 16, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 6, positive: 4, positive conditional: 0, positive unconditional: 4, negative: 2, negative conditional: 0, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 6, positive: 4, positive conditional: 0, positive unconditional: 4, negative: 2, negative conditional: 0, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 42, positive: 22, positive conditional: 0, positive unconditional: 22, negative: 14, negative conditional: 0, negative unconditional: 14, unknown: 6, unknown conditional: 0, unknown unconditional: 6] , Statistics on independence cache: Total cache size (in pairs): 26, Positive cache size: 19, Positive conditional cache size: 0, Positive unconditional cache size: 19, Negative cache size: 7, Negative conditional cache size: 0, Negative unconditional cache size: 7 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 4.9ms, 28 PlacesBefore, 27 PlacesAfterwards, 13 TransitionsBefore, 13 TransitionsAfterwards, 18 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 10 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 6, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 4, negative conditional: 0, negative unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 6, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 4, negative conditional: 0, negative unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 26, Positive cache size: 19, Positive conditional cache size: 0, Positive unconditional cache size: 19, Negative cache size: 7, Negative conditional cache size: 0, Negative unconditional cache size: 7 - CounterExampleResult [Line: 18]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L708] 0 int __unbuffered_cnt = 0; [L710] 0 int __unbuffered_p1_EAX = 0; [L712] 0 int __unbuffered_p1_EBX = 0; [L713] 0 _Bool main$tmp_guard0; [L714] 0 _Bool main$tmp_guard1; [L716] 0 int x = 0; [L717] 0 _Bool x$flush_delayed; [L718] 0 int x$mem_tmp; [L719] 0 _Bool x$r_buff0_thd0; [L720] 0 _Bool x$r_buff0_thd1; [L721] 0 _Bool x$r_buff0_thd2; [L722] 0 _Bool x$r_buff1_thd0; [L723] 0 _Bool x$r_buff1_thd1; [L724] 0 _Bool x$r_buff1_thd2; [L725] 0 _Bool x$read_delayed; [L726] 0 int *x$read_delayed_var; [L727] 0 int x$w_buff0; [L728] 0 _Bool x$w_buff0_used; [L729] 0 int x$w_buff1; [L730] 0 _Bool x$w_buff1_used; [L732] 0 int y = 0; [L734] 0 int z = 0; [L735] 0 _Bool weak$$choice0; [L736] 0 _Bool weak$$choice2; [L815] 0 pthread_t t1605; [L816] FCALL, FORK 0 pthread_create(&t1605, ((void *)0), P0, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=0, x$w_buff0_used=0, x$w_buff1=0, x$w_buff1_used=0, y=0, z=0] [L740] 1 x$w_buff1 = x$w_buff0 [L741] 1 x$w_buff0 = 1 [L742] 1 x$w_buff1_used = x$w_buff0_used [L743] 1 x$w_buff0_used = (_Bool)1 [L18] COND FALSE 1 !(!expression) [L745] 1 x$r_buff1_thd0 = x$r_buff0_thd0 [L746] 1 x$r_buff1_thd1 = x$r_buff0_thd1 [L747] 1 x$r_buff1_thd2 = x$r_buff0_thd2 [L748] 1 x$r_buff0_thd1 = (_Bool)1 [L751] 1 y = 1 VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=1, x$r_buff0_thd2=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=1, x$w_buff0_used=1, x$w_buff1=0, x$w_buff1_used=0, y=1, z=0] [L817] 0 pthread_t t1606; [L818] FCALL, FORK 0 pthread_create(&t1606, ((void *)0), P1, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=1, x$r_buff0_thd2=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=1, x$w_buff0_used=1, x$w_buff1=0, x$w_buff1_used=0, y=1, z=0] [L768] 2 y = 2 [L771] 2 z = 1 [L774] 2 __unbuffered_p1_EAX = z [L777] 2 weak$$choice0 = __VERIFIER_nondet_bool() [L778] 2 weak$$choice2 = __VERIFIER_nondet_bool() [L779] 2 x$flush_delayed = weak$$choice2 [L780] 2 x$mem_tmp = x [L781] EXPR 2 !x$w_buff0_used || !x$r_buff0_thd2 && !x$w_buff1_used || !x$r_buff0_thd2 && !x$r_buff1_thd2 ? x : (x$w_buff0_used && x$r_buff0_thd2 ? x$w_buff0 : x$w_buff1) [L781] 2 x = !x$w_buff0_used || !x$r_buff0_thd2 && !x$w_buff1_used || !x$r_buff0_thd2 && !x$r_buff1_thd2 ? x : (x$w_buff0_used && x$r_buff0_thd2 ? x$w_buff0 : x$w_buff1) [L782] EXPR 2 weak$$choice2 ? x$w_buff0 : (!x$w_buff0_used || !x$r_buff0_thd2 && !x$w_buff1_used || !x$r_buff0_thd2 && !x$r_buff1_thd2 ? x$w_buff0 : (x$w_buff0_used && x$r_buff0_thd2 ? x$w_buff0 : x$w_buff0)) [L782] EXPR 2 !x$w_buff0_used || !x$r_buff0_thd2 && !x$w_buff1_used || !x$r_buff0_thd2 && !x$r_buff1_thd2 ? x$w_buff0 : (x$w_buff0_used && x$r_buff0_thd2 ? x$w_buff0 : x$w_buff0) [L782] EXPR 2 weak$$choice2 ? x$w_buff0 : (!x$w_buff0_used || !x$r_buff0_thd2 && !x$w_buff1_used || !x$r_buff0_thd2 && !x$r_buff1_thd2 ? x$w_buff0 : (x$w_buff0_used && x$r_buff0_thd2 ? x$w_buff0 : x$w_buff0)) [L782] 2 x$w_buff0 = weak$$choice2 ? x$w_buff0 : (!x$w_buff0_used || !x$r_buff0_thd2 && !x$w_buff1_used || !x$r_buff0_thd2 && !x$r_buff1_thd2 ? x$w_buff0 : (x$w_buff0_used && x$r_buff0_thd2 ? x$w_buff0 : x$w_buff0)) [L783] EXPR 2 weak$$choice2 ? x$w_buff1 : (!x$w_buff0_used || !x$r_buff0_thd2 && !x$w_buff1_used || !x$r_buff0_thd2 && !x$r_buff1_thd2 ? x$w_buff1 : (x$w_buff0_used && x$r_buff0_thd2 ? x$w_buff1 : x$w_buff1)) [L783] EXPR 2 !x$w_buff0_used || !x$r_buff0_thd2 && !x$w_buff1_used || !x$r_buff0_thd2 && !x$r_buff1_thd2 ? x$w_buff1 : (x$w_buff0_used && x$r_buff0_thd2 ? x$w_buff1 : x$w_buff1) [L783] EXPR 2 weak$$choice2 ? x$w_buff1 : (!x$w_buff0_used || !x$r_buff0_thd2 && !x$w_buff1_used || !x$r_buff0_thd2 && !x$r_buff1_thd2 ? x$w_buff1 : (x$w_buff0_used && x$r_buff0_thd2 ? x$w_buff1 : x$w_buff1)) [L783] 2 x$w_buff1 = weak$$choice2 ? x$w_buff1 : (!x$w_buff0_used || !x$r_buff0_thd2 && !x$w_buff1_used || !x$r_buff0_thd2 && !x$r_buff1_thd2 ? x$w_buff1 : (x$w_buff0_used && x$r_buff0_thd2 ? x$w_buff1 : x$w_buff1)) [L784] EXPR 2 weak$$choice2 ? x$w_buff0_used : (!x$w_buff0_used || !x$r_buff0_thd2 && !x$w_buff1_used || !x$r_buff0_thd2 && !x$r_buff1_thd2 ? x$w_buff0_used : (x$w_buff0_used && x$r_buff0_thd2 ? (_Bool)0 : x$w_buff0_used)) [L784] EXPR 2 !x$w_buff0_used || !x$r_buff0_thd2 && !x$w_buff1_used || !x$r_buff0_thd2 && !x$r_buff1_thd2 ? x$w_buff0_used : (x$w_buff0_used && x$r_buff0_thd2 ? (_Bool)0 : x$w_buff0_used) [L784] EXPR 2 weak$$choice2 ? x$w_buff0_used : (!x$w_buff0_used || !x$r_buff0_thd2 && !x$w_buff1_used || !x$r_buff0_thd2 && !x$r_buff1_thd2 ? x$w_buff0_used : (x$w_buff0_used && x$r_buff0_thd2 ? (_Bool)0 : x$w_buff0_used)) [L784] 2 x$w_buff0_used = weak$$choice2 ? x$w_buff0_used : (!x$w_buff0_used || !x$r_buff0_thd2 && !x$w_buff1_used || !x$r_buff0_thd2 && !x$r_buff1_thd2 ? x$w_buff0_used : (x$w_buff0_used && x$r_buff0_thd2 ? (_Bool)0 : x$w_buff0_used)) [L785] EXPR 2 weak$$choice2 ? x$w_buff1_used : (!x$w_buff0_used || !x$r_buff0_thd2 && !x$w_buff1_used || !x$r_buff0_thd2 && !x$r_buff1_thd2 ? x$w_buff1_used : (x$w_buff0_used && x$r_buff0_thd2 ? (_Bool)0 : (_Bool)0)) [L785] EXPR 2 !x$w_buff0_used || !x$r_buff0_thd2 && !x$w_buff1_used || !x$r_buff0_thd2 && !x$r_buff1_thd2 ? x$w_buff1_used : (x$w_buff0_used && x$r_buff0_thd2 ? (_Bool)0 : (_Bool)0) [L785] EXPR 2 weak$$choice2 ? x$w_buff1_used : (!x$w_buff0_used || !x$r_buff0_thd2 && !x$w_buff1_used || !x$r_buff0_thd2 && !x$r_buff1_thd2 ? x$w_buff1_used : (x$w_buff0_used && x$r_buff0_thd2 ? (_Bool)0 : (_Bool)0)) [L785] 2 x$w_buff1_used = weak$$choice2 ? x$w_buff1_used : (!x$w_buff0_used || !x$r_buff0_thd2 && !x$w_buff1_used || !x$r_buff0_thd2 && !x$r_buff1_thd2 ? x$w_buff1_used : (x$w_buff0_used && x$r_buff0_thd2 ? (_Bool)0 : (_Bool)0)) [L786] EXPR 2 weak$$choice2 ? x$r_buff0_thd2 : (!x$w_buff0_used || !x$r_buff0_thd2 && !x$w_buff1_used || !x$r_buff0_thd2 && !x$r_buff1_thd2 ? x$r_buff0_thd2 : (x$w_buff0_used && x$r_buff0_thd2 ? (_Bool)0 : x$r_buff0_thd2)) [L786] EXPR 2 !x$w_buff0_used || !x$r_buff0_thd2 && !x$w_buff1_used || !x$r_buff0_thd2 && !x$r_buff1_thd2 ? x$r_buff0_thd2 : (x$w_buff0_used && x$r_buff0_thd2 ? (_Bool)0 : x$r_buff0_thd2) [L786] EXPR 2 weak$$choice2 ? x$r_buff0_thd2 : (!x$w_buff0_used || !x$r_buff0_thd2 && !x$w_buff1_used || !x$r_buff0_thd2 && !x$r_buff1_thd2 ? x$r_buff0_thd2 : (x$w_buff0_used && x$r_buff0_thd2 ? (_Bool)0 : x$r_buff0_thd2)) [L786] 2 x$r_buff0_thd2 = weak$$choice2 ? x$r_buff0_thd2 : (!x$w_buff0_used || !x$r_buff0_thd2 && !x$w_buff1_used || !x$r_buff0_thd2 && !x$r_buff1_thd2 ? x$r_buff0_thd2 : (x$w_buff0_used && x$r_buff0_thd2 ? (_Bool)0 : x$r_buff0_thd2)) [L787] EXPR 2 weak$$choice2 ? x$r_buff1_thd2 : (!x$w_buff0_used || !x$r_buff0_thd2 && !x$w_buff1_used || !x$r_buff0_thd2 && !x$r_buff1_thd2 ? x$r_buff1_thd2 : (x$w_buff0_used && x$r_buff0_thd2 ? (_Bool)0 : (_Bool)0)) [L787] EXPR 2 !x$w_buff0_used || !x$r_buff0_thd2 && !x$w_buff1_used || !x$r_buff0_thd2 && !x$r_buff1_thd2 ? x$r_buff1_thd2 : (x$w_buff0_used && x$r_buff0_thd2 ? (_Bool)0 : (_Bool)0) [L787] EXPR 2 weak$$choice2 ? x$r_buff1_thd2 : (!x$w_buff0_used || !x$r_buff0_thd2 && !x$w_buff1_used || !x$r_buff0_thd2 && !x$r_buff1_thd2 ? x$r_buff1_thd2 : (x$w_buff0_used && x$r_buff0_thd2 ? (_Bool)0 : (_Bool)0)) [L787] 2 x$r_buff1_thd2 = weak$$choice2 ? x$r_buff1_thd2 : (!x$w_buff0_used || !x$r_buff0_thd2 && !x$w_buff1_used || !x$r_buff0_thd2 && !x$r_buff1_thd2 ? x$r_buff1_thd2 : (x$w_buff0_used && x$r_buff0_thd2 ? (_Bool)0 : (_Bool)0)) [L788] 2 __unbuffered_p1_EBX = x [L789] EXPR 2 x$flush_delayed ? x$mem_tmp : x [L789] 2 x = x$flush_delayed ? x$mem_tmp : x [L790] 2 x$flush_delayed = (_Bool)0 VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=1, __unbuffered_p1_EBX=0, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=50, weak$$choice2=0, x=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=1, x$r_buff0_thd2=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=1, x$w_buff0_used=1, x$w_buff1=0, x$w_buff1_used=0, y=2, z=1] [L793] EXPR 2 x$w_buff0_used && x$r_buff0_thd2 ? x$w_buff0 : (x$w_buff1_used && x$r_buff1_thd2 ? x$w_buff1 : x) [L793] EXPR 2 x$w_buff1_used && x$r_buff1_thd2 ? x$w_buff1 : x [L793] EXPR 2 x$w_buff0_used && x$r_buff0_thd2 ? x$w_buff0 : (x$w_buff1_used && x$r_buff1_thd2 ? x$w_buff1 : x) [L793] 2 x = x$w_buff0_used && x$r_buff0_thd2 ? x$w_buff0 : (x$w_buff1_used && x$r_buff1_thd2 ? x$w_buff1 : x) [L794] EXPR 2 x$w_buff0_used && x$r_buff0_thd2 ? (_Bool)0 : x$w_buff0_used [L794] 2 x$w_buff0_used = x$w_buff0_used && x$r_buff0_thd2 ? (_Bool)0 : x$w_buff0_used [L795] EXPR 2 x$w_buff0_used && x$r_buff0_thd2 || x$w_buff1_used && x$r_buff1_thd2 ? (_Bool)0 : x$w_buff1_used [L795] 2 x$w_buff1_used = x$w_buff0_used && x$r_buff0_thd2 || x$w_buff1_used && x$r_buff1_thd2 ? (_Bool)0 : x$w_buff1_used [L796] EXPR 2 x$w_buff0_used && x$r_buff0_thd2 ? (_Bool)0 : x$r_buff0_thd2 [L796] 2 x$r_buff0_thd2 = x$w_buff0_used && x$r_buff0_thd2 ? (_Bool)0 : x$r_buff0_thd2 [L797] EXPR 2 x$w_buff0_used && x$r_buff0_thd2 || x$w_buff1_used && x$r_buff1_thd2 ? (_Bool)0 : x$r_buff1_thd2 [L797] 2 x$r_buff1_thd2 = x$w_buff0_used && x$r_buff0_thd2 || x$w_buff1_used && x$r_buff1_thd2 ? (_Bool)0 : x$r_buff1_thd2 [L754] EXPR 1 x$w_buff0_used && x$r_buff0_thd1 ? x$w_buff0 : (x$w_buff1_used && x$r_buff1_thd1 ? x$w_buff1 : x) [L754] 1 x = x$w_buff0_used && x$r_buff0_thd1 ? x$w_buff0 : (x$w_buff1_used && x$r_buff1_thd1 ? x$w_buff1 : x) [L755] EXPR 1 x$w_buff0_used && x$r_buff0_thd1 ? (_Bool)0 : x$w_buff0_used [L755] 1 x$w_buff0_used = x$w_buff0_used && x$r_buff0_thd1 ? (_Bool)0 : x$w_buff0_used [L756] EXPR 1 x$w_buff0_used && x$r_buff0_thd1 || x$w_buff1_used && x$r_buff1_thd1 ? (_Bool)0 : x$w_buff1_used [L756] 1 x$w_buff1_used = x$w_buff0_used && x$r_buff0_thd1 || x$w_buff1_used && x$r_buff1_thd1 ? (_Bool)0 : x$w_buff1_used [L757] EXPR 1 x$w_buff0_used && x$r_buff0_thd1 ? (_Bool)0 : x$r_buff0_thd1 [L757] 1 x$r_buff0_thd1 = x$w_buff0_used && x$r_buff0_thd1 ? (_Bool)0 : x$r_buff0_thd1 [L758] EXPR 1 x$w_buff0_used && x$r_buff0_thd1 || x$w_buff1_used && x$r_buff1_thd1 ? (_Bool)0 : x$r_buff1_thd1 [L758] 1 x$r_buff1_thd1 = x$w_buff0_used && x$r_buff0_thd1 || x$w_buff1_used && x$r_buff1_thd1 ? (_Bool)0 : x$r_buff1_thd1 [L761] 1 __unbuffered_cnt = __unbuffered_cnt + 1 [L763] 1 return 0; [L800] 2 __unbuffered_cnt = __unbuffered_cnt + 1 [L802] 2 return 0; [L820] 0 main$tmp_guard0 = __unbuffered_cnt == 2 [L3] COND FALSE 0 !(!cond) [L824] EXPR 0 x$w_buff0_used && x$r_buff0_thd0 ? x$w_buff0 : (x$w_buff1_used && x$r_buff1_thd0 ? x$w_buff1 : x) [L824] EXPR 0 x$w_buff1_used && x$r_buff1_thd0 ? x$w_buff1 : x [L824] EXPR 0 x$w_buff0_used && x$r_buff0_thd0 ? x$w_buff0 : (x$w_buff1_used && x$r_buff1_thd0 ? x$w_buff1 : x) [L824] 0 x = x$w_buff0_used && x$r_buff0_thd0 ? x$w_buff0 : (x$w_buff1_used && x$r_buff1_thd0 ? x$w_buff1 : x) [L825] EXPR 0 x$w_buff0_used && x$r_buff0_thd0 ? (_Bool)0 : x$w_buff0_used [L825] 0 x$w_buff0_used = x$w_buff0_used && x$r_buff0_thd0 ? (_Bool)0 : x$w_buff0_used [L826] EXPR 0 x$w_buff0_used && x$r_buff0_thd0 || x$w_buff1_used && x$r_buff1_thd0 ? (_Bool)0 : x$w_buff1_used [L826] 0 x$w_buff1_used = x$w_buff0_used && x$r_buff0_thd0 || x$w_buff1_used && x$r_buff1_thd0 ? (_Bool)0 : x$w_buff1_used [L827] EXPR 0 x$w_buff0_used && x$r_buff0_thd0 ? (_Bool)0 : x$r_buff0_thd0 [L827] 0 x$r_buff0_thd0 = x$w_buff0_used && x$r_buff0_thd0 ? (_Bool)0 : x$r_buff0_thd0 [L828] EXPR 0 x$w_buff0_used && x$r_buff0_thd0 || x$w_buff1_used && x$r_buff1_thd0 ? (_Bool)0 : x$r_buff1_thd0 [L828] 0 x$r_buff1_thd0 = x$w_buff0_used && x$r_buff0_thd0 || x$w_buff1_used && x$r_buff1_thd0 ? (_Bool)0 : x$r_buff1_thd0 [L831] 0 main$tmp_guard1 = !(y == 2 && __unbuffered_p1_EAX == 1 && __unbuffered_p1_EBX == 0) [L18] COND TRUE 0 !expression [L18] 0 reach_error() VAL [\result={0:0}, __unbuffered_cnt=2, __unbuffered_p1_EAX=1, __unbuffered_p1_EBX=0, arg={0:0}, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, weak$$choice0=50, weak$$choice2=0, x=1, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=1, x$r_buff0_thd2=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=1, x$w_buff0_used=0, x$w_buff1=0, x$w_buff1_used=0, y=2, z=1] - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 83 locations, 2 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 2.3ms, RemoveRedundantFlowTime: 0.0ms, RemoveRedundantFlowUnfoldingTime: 0.0ms, BackfoldingTime: 0.0ms, BackfoldingUnfoldingTime: 0.0ms, FlowIncreaseByBackfolding: 0, BasicCegarLoop: VerificationResult: UNSAFE, OverallTime: 9639.4ms, OverallIterations: 8, TraceHistogramMax: 1, EmptinessCheckTime: 0.0ms, AutomataDifference: 398.5ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 2253.9ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 25 SDtfs, 11 SDslu, 9 SDs, 0 SdLazy, 86 SolverSat, 26 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 108.8ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 23 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 89.7ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=88occurred in iteration=5, InterpolantAutomatonStates: 31, 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: 22.4ms SsaConstructionTime, 255.0ms SatisfiabilityAnalysisTime, 479.8ms InterpolantComputationTime, 91 NumberOfCodeBlocks, 91 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 73 ConstructedInterpolants, 0 QuantifiedInterpolants, 245 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...