/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-RepeatedSemanticLbeWithDisjunctivePredicates.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-wmm/rfi001_pso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-d5b4239aa45c8d22a30959944f2ef622f7386a6d-d5b4239 [2021-03-26 10:17:49,704 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-03-26 10:17:49,706 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-03-26 10:17:49,751 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-03-26 10:17:49,751 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-03-26 10:17:49,752 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-03-26 10:17:49,753 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-03-26 10:17:49,762 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-03-26 10:17:49,763 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-03-26 10:17:49,764 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-03-26 10:17:49,764 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-03-26 10:17:49,765 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-03-26 10:17:49,766 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-03-26 10:17:49,767 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-03-26 10:17:49,767 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-03-26 10:17:49,768 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-03-26 10:17:49,769 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-03-26 10:17:49,770 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-03-26 10:17:49,773 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-03-26 10:17:49,783 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-03-26 10:17:49,786 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-03-26 10:17:49,788 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-03-26 10:17:49,789 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-03-26 10:17:49,790 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-03-26 10:17:49,792 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-03-26 10:17:49,799 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-03-26 10:17:49,800 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-03-26 10:17:49,802 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-03-26 10:17:49,804 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-03-26 10:17:49,805 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-03-26 10:17:49,806 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-03-26 10:17:49,807 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-03-26 10:17:49,807 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-03-26 10:17:49,807 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-03-26 10:17:49,809 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-03-26 10:17:49,810 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-03-26 10:17:50,089 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-RepeatedSemanticLbeWithDisjunctivePredicates.epf [2021-03-26 10:17:50,176 INFO L113 SettingsManager]: Loading preferences was successful [2021-03-26 10:17:50,176 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-03-26 10:17:50,181 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-03-26 10:17:50,181 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-03-26 10:17:50,181 INFO L138 SettingsManager]: * Use SBE=true [2021-03-26 10:17:50,181 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-03-26 10:17:50,182 INFO L138 SettingsManager]: * sizeof long=4 [2021-03-26 10:17:50,182 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-03-26 10:17:50,182 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-03-26 10:17:50,182 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-03-26 10:17:50,183 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-03-26 10:17:50,183 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-03-26 10:17:50,183 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-03-26 10:17:50,184 INFO L138 SettingsManager]: * sizeof long double=12 [2021-03-26 10:17:50,184 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-03-26 10:17:50,184 INFO L138 SettingsManager]: * Use constant arrays=true [2021-03-26 10:17:50,184 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-03-26 10:17:50,184 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-03-26 10:17:50,184 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-03-26 10:17:50,184 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-03-26 10:17:50,185 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-03-26 10:17:50,185 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-03-26 10:17:50,185 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-03-26 10:17:50,185 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-03-26 10:17:50,185 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-03-26 10:17:50,185 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-03-26 10:17:50,186 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-03-26 10:17:50,186 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=SEMANTIC_BASED_MOVER_CHECK_WITH_PREDICATES_DISJUNCTIVE [2021-03-26 10:17:50,186 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-03-26 10:17:50,187 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-03-26 10:17:50,187 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-03-26 10:17:55,219 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-03-26 10:17:55,940 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-03-26 10:17:55,942 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-03-26 10:17:55,943 INFO L271 PluginConnector]: Initializing CDTParser... [2021-03-26 10:17:55,944 INFO L275 PluginConnector]: CDTParser initialized [2021-03-26 10:17:55,945 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/rfi001_pso.opt.i [2021-03-26 10:17:56,793 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e3857f082/b42a77c4275246cfb99d8fb2e652aa33/FLAGe9210a1cb [2021-03-26 10:17:59,376 INFO L306 CDTParser]: Found 1 translation units. [2021-03-26 10:17:59,377 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/rfi001_pso.opt.i [2021-03-26 10:17:59,552 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e3857f082/b42a77c4275246cfb99d8fb2e652aa33/FLAGe9210a1cb [2021-03-26 10:17:59,928 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e3857f082/b42a77c4275246cfb99d8fb2e652aa33 [2021-03-26 10:17:59,930 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-03-26 10:17:59,932 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-03-26 10:17:59,933 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-03-26 10:17:59,933 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-03-26 10:17:59,935 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-03-26 10:17:59,936 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.03 10:17:59" (1/1) ... [2021-03-26 10:17:59,937 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7eba84fa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 10:17:59, skipping insertion in model container [2021-03-26 10:17:59,937 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.03 10:17:59" (1/1) ... [2021-03-26 10:17:59,942 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-03-26 10:17:59,972 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-03-26 10:18:00,254 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.opt.i[948,961] [2021-03-26 10:18:00,515 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-03-26 10:18:00,526 INFO L203 MainTranslator]: Completed pre-run [2021-03-26 10:18:00,542 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.opt.i[948,961] [2021-03-26 10:18:00,599 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-03-26 10:18:00,652 INFO L208 MainTranslator]: Completed translation [2021-03-26 10:18:00,653 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 10:18:00 WrapperNode [2021-03-26 10:18:00,653 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-03-26 10:18:00,654 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-03-26 10:18:00,655 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-03-26 10:18:00,655 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-03-26 10:18:00,661 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 10:18:00" (1/1) ... [2021-03-26 10:18:00,690 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 10:18:00" (1/1) ... [2021-03-26 10:18:00,719 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-03-26 10:18:00,719 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-03-26 10:18:00,720 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-03-26 10:18:00,720 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-03-26 10:18:00,726 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 10:18:00" (1/1) ... [2021-03-26 10:18:00,726 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 10:18:00" (1/1) ... [2021-03-26 10:18:00,730 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 10:18:00" (1/1) ... [2021-03-26 10:18:00,730 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 10:18:00" (1/1) ... [2021-03-26 10:18:00,737 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 10:18:00" (1/1) ... [2021-03-26 10:18:00,740 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 10:18:00" (1/1) ... [2021-03-26 10:18:00,743 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 10:18:00" (1/1) ... [2021-03-26 10:18:00,747 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-03-26 10:18:00,747 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-03-26 10:18:00,748 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-03-26 10:18:00,748 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-03-26 10:18:00,749 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 10:18:00" (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 [2021-03-26 10:18:00,848 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-03-26 10:18:00,848 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-03-26 10:18:00,849 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-03-26 10:18:00,849 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-03-26 10:18:00,849 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2021-03-26 10:18:00,850 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2021-03-26 10:18:00,850 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2021-03-26 10:18:00,850 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2021-03-26 10:18:00,850 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-03-26 10:18:00,850 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-03-26 10:18:00,851 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-03-26 10:18:00,851 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-03-26 10:18:00,852 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-03-26 10:18:02,507 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-03-26 10:18:02,508 INFO L299 CfgBuilder]: Removed 10 assume(true) statements. [2021-03-26 10:18:02,509 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.03 10:18:02 BoogieIcfgContainer [2021-03-26 10:18:02,510 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-03-26 10:18:02,511 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-03-26 10:18:02,512 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-03-26 10:18:02,514 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-03-26 10:18:02,514 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.03 10:17:59" (1/3) ... [2021-03-26 10:18:02,515 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@695455d9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.03 10:18:02, skipping insertion in model container [2021-03-26 10:18:02,515 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 10:18:00" (2/3) ... [2021-03-26 10:18:02,515 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@695455d9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.03 10:18:02, skipping insertion in model container [2021-03-26 10:18:02,515 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.03 10:18:02" (3/3) ... [2021-03-26 10:18:02,516 INFO L111 eAbstractionObserver]: Analyzing ICFG rfi001_pso.opt.i [2021-03-26 10:18:02,522 INFO L149 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-03-26 10:18:02,525 INFO L161 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2021-03-26 10:18:02,526 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-03-26 10:18:02,559 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:18:02,560 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:18:02,560 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:18:02,560 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:18:02,560 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:18:02,560 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:18:02,560 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:18:02,560 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:18:02,561 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:18:02,561 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:18:02,561 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:18:02,561 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:18:02,561 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:18:02,561 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:18:02,561 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:18:02,562 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:18:02,562 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:18:02,562 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:18:02,562 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:18:02,562 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:18:02,562 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:18:02,563 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:18:02,563 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:18:02,564 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:18:02,564 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:18:02,564 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:18:02,564 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:18:02,565 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:18:02,565 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:18:02,565 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:18:02,565 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:18:02,565 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:18:02,565 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:18:02,565 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:18:02,565 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:18:02,566 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:18:02,566 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:18:02,566 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:18:02,566 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:18:02,567 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:18:02,567 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:18:02,567 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:18:02,567 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:18:02,567 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:18:02,567 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:18:02,568 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:18:02,568 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:18:02,568 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:18:02,568 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:18:02,568 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:18:02,568 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:18:02,568 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:18:02,569 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:18:02,569 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:18:02,569 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:18:02,569 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:18:02,569 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:18:02,570 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:18:02,570 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:18:02,570 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:18:02,572 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:18:02,572 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:18:02,572 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:18:02,572 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:18:02,573 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:18:02,573 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:18:02,573 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:18:02,573 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:18:02,573 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:18:02,573 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:18:02,573 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:18:02,573 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:18:02,575 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:18:02,575 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:18:02,575 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:18:02,575 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:18:02,576 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:18:02,576 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:18:02,577 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:18:02,577 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:18:02,577 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:18:02,577 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:18:02,578 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-03-26 10:18:02,593 INFO L253 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2021-03-26 10:18:02,614 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-03-26 10:18:02,615 INFO L377 AbstractCegarLoop]: Hoare is false [2021-03-26 10:18:02,615 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-03-26 10:18:02,615 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-03-26 10:18:02,615 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-03-26 10:18:02,615 INFO L381 AbstractCegarLoop]: Difference is false [2021-03-26 10:18:02,615 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-03-26 10:18:02,615 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-03-26 10:18:02,624 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 89 places, 84 transitions, 178 flow [2021-03-26 10:18:02,650 INFO L129 PetriNetUnfolder]: 2/82 cut-off events. [2021-03-26 10:18:02,651 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 10:18:02,653 INFO L84 FinitePrefix]: Finished finitePrefix Result has 89 conditions, 82 events. 2/82 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 54 event pairs, 0 based on Foata normal form. 0/78 useless extension candidates. Maximal degree in co-relation 48. Up to 2 conditions per place. [2021-03-26 10:18:02,654 INFO L82 GeneralOperation]: Start removeDead. Operand has 89 places, 84 transitions, 178 flow [2021-03-26 10:18:02,657 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 87 places, 82 transitions, 170 flow [2021-03-26 10:18:02,658 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 10:18:02,670 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 87 places, 82 transitions, 170 flow [2021-03-26 10:18:02,672 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 87 places, 82 transitions, 170 flow [2021-03-26 10:18:02,674 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 87 places, 82 transitions, 170 flow [2021-03-26 10:18:02,688 INFO L129 PetriNetUnfolder]: 2/82 cut-off events. [2021-03-26 10:18:02,688 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 10:18:02,689 INFO L84 FinitePrefix]: Finished finitePrefix Result has 89 conditions, 82 events. 2/82 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 52 event pairs, 0 based on Foata normal form. 0/78 useless extension candidates. Maximal degree in co-relation 48. Up to 2 conditions per place. [2021-03-26 10:18:02,691 INFO L142 LiptonReduction]: Number of co-enabled transitions 1046 [2021-03-26 10:18:03,949 WARN L205 SmtUtils]: Spent 199.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 58 [2021-03-26 10:18:04,352 WARN L205 SmtUtils]: Spent 333.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 81 [2021-03-26 10:18:04,472 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 79 [2021-03-26 10:18:05,827 WARN L205 SmtUtils]: Spent 764.00 ms on a formula simplification. DAG size of input: 226 DAG size of output: 186 [2021-03-26 10:18:06,525 WARN L205 SmtUtils]: Spent 696.00 ms on a formula simplification. DAG size of input: 184 DAG size of output: 183 [2021-03-26 10:18:08,028 WARN L205 SmtUtils]: Spent 1.50 s on a formula simplification. DAG size of input: 310 DAG size of output: 265 [2021-03-26 10:18:08,676 WARN L205 SmtUtils]: Spent 645.00 ms on a formula simplification that was a NOOP. DAG size: 262 [2021-03-26 10:18:09,059 INFO L154 LiptonReduction]: Checked pairs total: 1715 [2021-03-26 10:18:09,059 INFO L156 LiptonReduction]: Total number of compositions: 56 [2021-03-26 10:18:09,061 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 6404 [2021-03-26 10:18:09,070 INFO L129 PetriNetUnfolder]: 0/16 cut-off events. [2021-03-26 10:18:09,071 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 10:18:09,071 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 10:18:09,072 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 10:18:09,072 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1INUSE_VIOLATION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-26 10:18:09,076 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 10:18:09,076 INFO L82 PathProgramCache]: Analyzing trace with hash 1574192890, now seen corresponding path program 1 times [2021-03-26 10:18:09,084 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 10:18:09,085 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [567565483] [2021-03-26 10:18:09,085 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 10:18:09,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 10:18:09,335 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:18:09,336 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 10:18:09,337 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:18:09,338 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 10:18:09,344 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 10:18:09,345 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [567565483] [2021-03-26 10:18:09,345 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 10:18:09,346 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-03-26 10:18:09,346 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1271045947] [2021-03-26 10:18:09,354 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-26 10:18:09,354 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 10:18:09,365 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-26 10:18:09,366 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-26 10:18:09,368 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 119 out of 140 [2021-03-26 10:18:09,370 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 39 places, 33 transitions, 72 flow. Second operand has 3 states, 3 states have (on average 119.66666666666667) internal successors, (359), 3 states have internal predecessors, (359), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:18:09,371 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 10:18:09,371 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 119 of 140 [2021-03-26 10:18:09,372 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 10:18:09,429 INFO L129 PetriNetUnfolder]: 16/87 cut-off events. [2021-03-26 10:18:09,430 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 10:18:09,430 INFO L84 FinitePrefix]: Finished finitePrefix Result has 129 conditions, 87 events. 16/87 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 288 event pairs, 6 based on Foata normal form. 6/86 useless extension candidates. Maximal degree in co-relation 112. Up to 27 conditions per place. [2021-03-26 10:18:09,432 INFO L132 encePairwiseOnDemand]: 136/140 looper letters, 7 selfloop transitions, 2 changer transitions 0/33 dead transitions. [2021-03-26 10:18:09,432 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 39 places, 33 transitions, 90 flow [2021-03-26 10:18:09,433 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-26 10:18:09,435 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-26 10:18:09,447 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 369 transitions. [2021-03-26 10:18:09,454 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8785714285714286 [2021-03-26 10:18:09,455 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 369 transitions. [2021-03-26 10:18:09,455 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 369 transitions. [2021-03-26 10:18:09,458 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 10:18:09,461 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 369 transitions. [2021-03-26 10:18:09,467 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 123.0) internal successors, (369), 3 states have internal predecessors, (369), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:18:09,486 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 140.0) internal successors, (560), 4 states have internal predecessors, (560), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:18:09,486 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 140.0) internal successors, (560), 4 states have internal predecessors, (560), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:18:09,488 INFO L185 Difference]: Start difference. First operand has 39 places, 33 transitions, 72 flow. Second operand 3 states and 369 transitions. [2021-03-26 10:18:09,489 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 39 places, 33 transitions, 90 flow [2021-03-26 10:18:09,491 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 37 places, 33 transitions, 88 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-03-26 10:18:09,493 INFO L241 Difference]: Finished difference. Result has 37 places, 30 transitions, 68 flow [2021-03-26 10:18:09,495 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=140, PETRI_DIFFERENCE_MINUEND_FLOW=64, PETRI_DIFFERENCE_MINUEND_PLACES=35, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=30, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=28, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=68, PETRI_PLACES=37, PETRI_TRANSITIONS=30} [2021-03-26 10:18:09,496 INFO L343 CegarLoopForPetriNet]: 39 programPoint places, -2 predicate places. [2021-03-26 10:18:09,496 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 10:18:09,496 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 37 places, 30 transitions, 68 flow [2021-03-26 10:18:09,498 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 37 places, 30 transitions, 68 flow [2021-03-26 10:18:09,499 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 37 places, 30 transitions, 68 flow [2021-03-26 10:18:09,516 INFO L129 PetriNetUnfolder]: 0/30 cut-off events. [2021-03-26 10:18:09,516 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 10:18:09,516 INFO L84 FinitePrefix]: Finished finitePrefix Result has 38 conditions, 30 events. 0/30 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 25 event pairs, 0 based on Foata normal form. 0/29 useless extension candidates. Maximal degree in co-relation 0. Up to 2 conditions per place. [2021-03-26 10:18:09,517 INFO L142 LiptonReduction]: Number of co-enabled transitions 218 [2021-03-26 10:18:10,151 WARN L205 SmtUtils]: Spent 409.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2021-03-26 10:18:10,505 WARN L205 SmtUtils]: Spent 353.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2021-03-26 10:18:11,212 WARN L205 SmtUtils]: Spent 704.00 ms on a formula simplification that was a NOOP. DAG size: 265 [2021-03-26 10:18:11,965 WARN L205 SmtUtils]: Spent 752.00 ms on a formula simplification that was a NOOP. DAG size: 265 [2021-03-26 10:18:12,545 WARN L205 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 81 [2021-03-26 10:18:12,682 WARN L205 SmtUtils]: Spent 136.00 ms on a formula simplification that was a NOOP. DAG size: 81 [2021-03-26 10:18:13,304 WARN L205 SmtUtils]: Spent 433.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2021-03-26 10:18:13,675 WARN L205 SmtUtils]: Spent 370.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2021-03-26 10:18:14,430 WARN L205 SmtUtils]: Spent 751.00 ms on a formula simplification that was a NOOP. DAG size: 276 [2021-03-26 10:18:15,231 WARN L205 SmtUtils]: Spent 799.00 ms on a formula simplification that was a NOOP. DAG size: 276 [2021-03-26 10:18:15,684 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 80 [2021-03-26 10:18:15,993 INFO L154 LiptonReduction]: Checked pairs total: 651 [2021-03-26 10:18:15,993 INFO L156 LiptonReduction]: Total number of compositions: 13 [2021-03-26 10:18:15,994 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 6498 [2021-03-26 10:18:15,995 INFO L480 AbstractCegarLoop]: Abstraction has has 25 places, 18 transitions, 44 flow [2021-03-26 10:18:15,995 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 119.66666666666667) internal successors, (359), 3 states have internal predecessors, (359), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:18:15,995 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 10:18:15,995 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 10:18:15,995 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-03-26 10:18:15,996 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1INUSE_VIOLATION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-26 10:18:15,996 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 10:18:15,996 INFO L82 PathProgramCache]: Analyzing trace with hash 1071371314, now seen corresponding path program 1 times [2021-03-26 10:18:15,996 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 10:18:15,996 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [284591978] [2021-03-26 10:18:15,997 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 10:18:16,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 10:18:16,127 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:18:16,128 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 10:18:16,129 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:18:16,129 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 10:18:16,147 INFO L142 QuantifierPusher]: treesize reduction 9, result has 30.8 percent of original size [2021-03-26 10:18:16,148 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-26 10:18:16,152 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 10:18:16,153 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [284591978] [2021-03-26 10:18:16,153 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 10:18:16,153 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-26 10:18:16,153 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [312166417] [2021-03-26 10:18:16,155 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-26 10:18:16,155 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 10:18:16,156 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-26 10:18:16,156 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-03-26 10:18:16,159 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 127 out of 153 [2021-03-26 10:18:16,160 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 25 places, 18 transitions, 44 flow. Second operand has 4 states, 4 states have (on average 127.75) internal successors, (511), 4 states have internal predecessors, (511), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:18:16,160 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 10:18:16,160 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 127 of 153 [2021-03-26 10:18:16,161 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 10:18:16,205 INFO L129 PetriNetUnfolder]: 1/21 cut-off events. [2021-03-26 10:18:16,205 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 10:18:16,206 INFO L84 FinitePrefix]: Finished finitePrefix Result has 36 conditions, 21 events. 1/21 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 34 event pairs, 0 based on Foata normal form. 0/20 useless extension candidates. Maximal degree in co-relation 26. Up to 3 conditions per place. [2021-03-26 10:18:16,207 INFO L132 encePairwiseOnDemand]: 149/153 looper letters, 1 selfloop transitions, 2 changer transitions 4/20 dead transitions. [2021-03-26 10:18:16,207 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 29 places, 20 transitions, 60 flow [2021-03-26 10:18:16,208 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-26 10:18:16,208 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-03-26 10:18:16,211 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 642 transitions. [2021-03-26 10:18:16,213 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8392156862745098 [2021-03-26 10:18:16,213 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 642 transitions. [2021-03-26 10:18:16,213 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 642 transitions. [2021-03-26 10:18:16,214 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 10:18:16,220 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 642 transitions. [2021-03-26 10:18:16,222 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 128.4) internal successors, (642), 5 states have internal predecessors, (642), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:18:16,227 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 153.0) internal successors, (918), 6 states have internal predecessors, (918), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:18:16,228 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 153.0) internal successors, (918), 6 states have internal predecessors, (918), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:18:16,228 INFO L185 Difference]: Start difference. First operand has 25 places, 18 transitions, 44 flow. Second operand 5 states and 642 transitions. [2021-03-26 10:18:16,228 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 29 places, 20 transitions, 60 flow [2021-03-26 10:18:16,228 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 27 places, 20 transitions, 56 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-03-26 10:18:16,229 INFO L241 Difference]: Finished difference. Result has 28 places, 16 transitions, 44 flow [2021-03-26 10:18:16,229 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=153, PETRI_DIFFERENCE_MINUEND_FLOW=40, PETRI_DIFFERENCE_MINUEND_PLACES=23, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=18, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=16, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=44, PETRI_PLACES=28, PETRI_TRANSITIONS=16} [2021-03-26 10:18:16,230 INFO L343 CegarLoopForPetriNet]: 39 programPoint places, -11 predicate places. [2021-03-26 10:18:16,230 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 10:18:16,230 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 28 places, 16 transitions, 44 flow [2021-03-26 10:18:16,231 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 28 places, 16 transitions, 44 flow [2021-03-26 10:18:16,232 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 24 places, 16 transitions, 44 flow [2021-03-26 10:18:16,235 INFO L129 PetriNetUnfolder]: 0/16 cut-off events. [2021-03-26 10:18:16,235 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 10:18:16,236 INFO L84 FinitePrefix]: Finished finitePrefix Result has 27 conditions, 16 events. 0/16 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 18 event pairs, 0 based on Foata normal form. 0/16 useless extension candidates. Maximal degree in co-relation 0. Up to 3 conditions per place. [2021-03-26 10:18:16,236 INFO L142 LiptonReduction]: Number of co-enabled transitions 92 [2021-03-26 10:18:16,696 WARN L205 SmtUtils]: Spent 325.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 110 [2021-03-26 10:18:16,853 WARN L205 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 106 [2021-03-26 10:18:17,174 WARN L205 SmtUtils]: Spent 320.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 110 [2021-03-26 10:18:17,336 WARN L205 SmtUtils]: Spent 160.00 ms on a formula simplification that was a NOOP. DAG size: 106 [2021-03-26 10:18:17,339 INFO L154 LiptonReduction]: Checked pairs total: 222 [2021-03-26 10:18:17,340 INFO L156 LiptonReduction]: Total number of compositions: 1 [2021-03-26 10:18:17,340 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 1110 [2021-03-26 10:18:17,341 INFO L480 AbstractCegarLoop]: Abstraction has has 23 places, 15 transitions, 42 flow [2021-03-26 10:18:17,342 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 127.75) internal successors, (511), 4 states have internal predecessors, (511), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:18:17,342 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 10:18:17,342 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 10:18:17,342 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-03-26 10:18:17,342 INFO L428 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1INUSE_VIOLATION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-26 10:18:17,343 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 10:18:17,343 INFO L82 PathProgramCache]: Analyzing trace with hash -211704109, now seen corresponding path program 1 times [2021-03-26 10:18:17,343 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 10:18:17,343 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [354727785] [2021-03-26 10:18:17,343 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 10:18:17,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 10:18:17,506 INFO L142 QuantifierPusher]: treesize reduction 4, result has 71.4 percent of original size [2021-03-26 10:18:17,507 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-26 10:18:17,513 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:18:17,516 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-26 10:18:17,524 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:18:17,528 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-26 10:18:17,536 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:18:17,537 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-26 10:18:17,548 INFO L142 QuantifierPusher]: treesize reduction 10, result has 81.8 percent of original size [2021-03-26 10:18:17,549 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-26 10:18:17,563 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 10:18:17,564 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [354727785] [2021-03-26 10:18:17,564 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 10:18:17,564 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-03-26 10:18:17,564 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [605842377] [2021-03-26 10:18:17,564 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-26 10:18:17,564 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 10:18:17,566 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-26 10:18:17,566 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2021-03-26 10:18:17,568 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 105 out of 154 [2021-03-26 10:18:17,569 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 23 places, 15 transitions, 42 flow. Second operand has 7 states, 7 states have (on average 105.85714285714286) internal successors, (741), 7 states have internal predecessors, (741), 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) [2021-03-26 10:18:17,569 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 10:18:17,569 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 105 of 154 [2021-03-26 10:18:17,569 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 10:18:17,718 INFO L129 PetriNetUnfolder]: 77/157 cut-off events. [2021-03-26 10:18:17,718 INFO L130 PetriNetUnfolder]: For 14/14 co-relation queries the response was YES. [2021-03-26 10:18:17,719 INFO L84 FinitePrefix]: Finished finitePrefix Result has 341 conditions, 157 events. 77/157 cut-off events. For 14/14 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 579 event pairs, 5 based on Foata normal form. 4/161 useless extension candidates. Maximal degree in co-relation 331. Up to 98 conditions per place. [2021-03-26 10:18:17,720 INFO L132 encePairwiseOnDemand]: 148/154 looper letters, 19 selfloop transitions, 8 changer transitions 0/32 dead transitions. [2021-03-26 10:18:17,720 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 28 places, 32 transitions, 130 flow [2021-03-26 10:18:17,725 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-03-26 10:18:17,725 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-03-26 10:18:17,727 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 659 transitions. [2021-03-26 10:18:17,727 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7132034632034632 [2021-03-26 10:18:17,727 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 659 transitions. [2021-03-26 10:18:17,727 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 659 transitions. [2021-03-26 10:18:17,728 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 10:18:17,728 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 659 transitions. [2021-03-26 10:18:17,730 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 109.83333333333333) internal successors, (659), 6 states have internal predecessors, (659), 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) [2021-03-26 10:18:17,731 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 154.0) internal successors, (1078), 7 states have internal predecessors, (1078), 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) [2021-03-26 10:18:17,732 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 154.0) internal successors, (1078), 7 states have internal predecessors, (1078), 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) [2021-03-26 10:18:17,732 INFO L185 Difference]: Start difference. First operand has 23 places, 15 transitions, 42 flow. Second operand 6 states and 659 transitions. [2021-03-26 10:18:17,733 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 28 places, 32 transitions, 130 flow [2021-03-26 10:18:17,734 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 26 places, 32 transitions, 126 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-03-26 10:18:17,735 INFO L241 Difference]: Finished difference. Result has 28 places, 21 transitions, 83 flow [2021-03-26 10:18:17,735 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=154, PETRI_DIFFERENCE_MINUEND_FLOW=38, PETRI_DIFFERENCE_MINUEND_PLACES=21, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=15, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=10, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=83, PETRI_PLACES=28, PETRI_TRANSITIONS=21} [2021-03-26 10:18:17,736 INFO L343 CegarLoopForPetriNet]: 39 programPoint places, -11 predicate places. [2021-03-26 10:18:17,736 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 10:18:17,736 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 28 places, 21 transitions, 83 flow [2021-03-26 10:18:17,737 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 28 places, 21 transitions, 83 flow [2021-03-26 10:18:17,737 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 28 places, 21 transitions, 83 flow [2021-03-26 10:18:17,746 INFO L129 PetriNetUnfolder]: 4/32 cut-off events. [2021-03-26 10:18:17,746 INFO L130 PetriNetUnfolder]: For 13/13 co-relation queries the response was YES. [2021-03-26 10:18:17,746 INFO L84 FinitePrefix]: Finished finitePrefix Result has 72 conditions, 32 events. 4/32 cut-off events. For 13/13 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 76 event pairs, 0 based on Foata normal form. 0/32 useless extension candidates. Maximal degree in co-relation 62. Up to 10 conditions per place. [2021-03-26 10:18:17,747 INFO L142 LiptonReduction]: Number of co-enabled transitions 108 [2021-03-26 10:18:17,802 INFO L154 LiptonReduction]: Checked pairs total: 105 [2021-03-26 10:18:17,802 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 10:18:17,802 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 66 [2021-03-26 10:18:17,803 INFO L480 AbstractCegarLoop]: Abstraction has has 28 places, 21 transitions, 83 flow [2021-03-26 10:18:17,804 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 105.85714285714286) internal successors, (741), 7 states have internal predecessors, (741), 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) [2021-03-26 10:18:17,804 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 10:18:17,804 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 10:18:17,804 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-03-26 10:18:17,804 INFO L428 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1INUSE_VIOLATION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-26 10:18:17,804 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 10:18:17,804 INFO L82 PathProgramCache]: Analyzing trace with hash -1030991708, now seen corresponding path program 1 times [2021-03-26 10:18:17,805 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 10:18:17,805 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1844370035] [2021-03-26 10:18:17,805 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 10:18:17,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 10:18:17,874 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:18:17,875 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 10:18:17,878 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:18:17,879 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 10:18:17,885 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:18:17,885 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 10:18:17,886 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 10:18:17,886 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1844370035] [2021-03-26 10:18:17,887 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 10:18:17,887 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-26 10:18:17,889 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1557429936] [2021-03-26 10:18:17,889 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-26 10:18:17,889 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 10:18:17,889 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-26 10:18:17,890 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-03-26 10:18:17,890 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 128 out of 154 [2021-03-26 10:18:17,891 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 28 places, 21 transitions, 83 flow. Second operand has 4 states, 4 states have (on average 128.75) internal successors, (515), 4 states have internal predecessors, (515), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:18:17,891 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 10:18:17,891 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 128 of 154 [2021-03-26 10:18:17,891 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 10:18:17,921 INFO L129 PetriNetUnfolder]: 11/59 cut-off events. [2021-03-26 10:18:17,921 INFO L130 PetriNetUnfolder]: For 19/20 co-relation queries the response was YES. [2021-03-26 10:18:17,922 INFO L84 FinitePrefix]: Finished finitePrefix Result has 140 conditions, 59 events. 11/59 cut-off events. For 19/20 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 206 event pairs, 4 based on Foata normal form. 8/66 useless extension candidates. Maximal degree in co-relation 128. Up to 25 conditions per place. [2021-03-26 10:18:17,922 INFO L132 encePairwiseOnDemand]: 149/154 looper letters, 4 selfloop transitions, 6 changer transitions 2/28 dead transitions. [2021-03-26 10:18:17,922 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 32 places, 28 transitions, 121 flow [2021-03-26 10:18:17,925 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-26 10:18:17,925 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-03-26 10:18:17,926 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 654 transitions. [2021-03-26 10:18:17,926 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8493506493506493 [2021-03-26 10:18:17,926 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 654 transitions. [2021-03-26 10:18:17,926 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 654 transitions. [2021-03-26 10:18:17,927 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 10:18:17,927 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 654 transitions. [2021-03-26 10:18:17,928 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 130.8) internal successors, (654), 5 states have internal predecessors, (654), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:18:17,930 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 154.0) internal successors, (924), 6 states have internal predecessors, (924), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:18:17,930 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 154.0) internal successors, (924), 6 states have internal predecessors, (924), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:18:17,931 INFO L185 Difference]: Start difference. First operand has 28 places, 21 transitions, 83 flow. Second operand 5 states and 654 transitions. [2021-03-26 10:18:17,931 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 32 places, 28 transitions, 121 flow [2021-03-26 10:18:17,932 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 31 places, 28 transitions, 116 flow, removed 1 selfloop flow, removed 1 redundant places. [2021-03-26 10:18:17,933 INFO L241 Difference]: Finished difference. Result has 34 places, 26 transitions, 119 flow [2021-03-26 10:18:17,933 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=154, PETRI_DIFFERENCE_MINUEND_FLOW=78, PETRI_DIFFERENCE_MINUEND_PLACES=27, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=21, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=17, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=119, PETRI_PLACES=34, PETRI_TRANSITIONS=26} [2021-03-26 10:18:17,933 INFO L343 CegarLoopForPetriNet]: 39 programPoint places, -5 predicate places. [2021-03-26 10:18:17,933 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 10:18:17,933 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 34 places, 26 transitions, 119 flow [2021-03-26 10:18:17,934 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 34 places, 26 transitions, 119 flow [2021-03-26 10:18:17,934 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 34 places, 26 transitions, 119 flow [2021-03-26 10:18:17,941 INFO L129 PetriNetUnfolder]: 6/43 cut-off events. [2021-03-26 10:18:17,941 INFO L130 PetriNetUnfolder]: For 15/16 co-relation queries the response was YES. [2021-03-26 10:18:17,942 INFO L84 FinitePrefix]: Finished finitePrefix Result has 114 conditions, 43 events. 6/43 cut-off events. For 15/16 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 143 event pairs, 0 based on Foata normal form. 1/44 useless extension candidates. Maximal degree in co-relation 100. Up to 10 conditions per place. [2021-03-26 10:18:17,942 INFO L142 LiptonReduction]: Number of co-enabled transitions 124 [2021-03-26 10:18:17,944 INFO L154 LiptonReduction]: Checked pairs total: 61 [2021-03-26 10:18:17,944 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 10:18:17,944 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 11 [2021-03-26 10:18:17,945 INFO L480 AbstractCegarLoop]: Abstraction has has 34 places, 26 transitions, 119 flow [2021-03-26 10:18:17,946 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 128.75) internal successors, (515), 4 states have internal predecessors, (515), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:18:17,946 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 10:18:17,946 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 10:18:17,946 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-03-26 10:18:17,946 INFO L428 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1INUSE_VIOLATION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-26 10:18:17,947 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 10:18:17,947 INFO L82 PathProgramCache]: Analyzing trace with hash 1386146829, now seen corresponding path program 1 times [2021-03-26 10:18:17,947 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 10:18:17,947 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1141371456] [2021-03-26 10:18:17,947 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 10:18:18,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 10:18:18,071 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:18:18,072 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 10:18:18,075 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:18:18,076 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 10:18:18,080 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:18:18,081 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 10:18:18,087 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:18:18,088 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 10:18:18,088 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 10:18:18,088 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1141371456] [2021-03-26 10:18:18,088 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 10:18:18,088 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-03-26 10:18:18,089 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [589037253] [2021-03-26 10:18:18,089 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-03-26 10:18:18,089 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 10:18:18,093 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-03-26 10:18:18,093 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-03-26 10:18:18,094 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 128 out of 154 [2021-03-26 10:18:18,095 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 34 places, 26 transitions, 119 flow. Second operand has 5 states, 5 states have (on average 128.8) internal successors, (644), 5 states have internal predecessors, (644), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:18:18,095 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 10:18:18,095 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 128 of 154 [2021-03-26 10:18:18,095 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 10:18:18,154 INFO L129 PetriNetUnfolder]: 6/44 cut-off events. [2021-03-26 10:18:18,154 INFO L130 PetriNetUnfolder]: For 39/49 co-relation queries the response was YES. [2021-03-26 10:18:18,156 INFO L84 FinitePrefix]: Finished finitePrefix Result has 137 conditions, 44 events. 6/44 cut-off events. For 39/49 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 131 event pairs, 1 based on Foata normal form. 16/60 useless extension candidates. Maximal degree in co-relation 121. Up to 13 conditions per place. [2021-03-26 10:18:18,157 INFO L132 encePairwiseOnDemand]: 149/154 looper letters, 2 selfloop transitions, 9 changer transitions 2/29 dead transitions. [2021-03-26 10:18:18,157 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 40 places, 29 transitions, 157 flow [2021-03-26 10:18:18,158 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-26 10:18:18,158 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-26 10:18:18,160 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 911 transitions. [2021-03-26 10:18:18,160 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8450834879406308 [2021-03-26 10:18:18,161 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 911 transitions. [2021-03-26 10:18:18,161 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 911 transitions. [2021-03-26 10:18:18,162 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 10:18:18,162 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 911 transitions. [2021-03-26 10:18:18,164 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 130.14285714285714) internal successors, (911), 7 states have internal predecessors, (911), 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) [2021-03-26 10:18:18,166 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 154.0) internal successors, (1232), 8 states have internal predecessors, (1232), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:18:18,167 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 154.0) internal successors, (1232), 8 states have internal predecessors, (1232), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:18:18,167 INFO L185 Difference]: Start difference. First operand has 34 places, 26 transitions, 119 flow. Second operand 7 states and 911 transitions. [2021-03-26 10:18:18,167 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 40 places, 29 transitions, 157 flow [2021-03-26 10:18:18,169 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 39 places, 29 transitions, 151 flow, removed 2 selfloop flow, removed 1 redundant places. [2021-03-26 10:18:18,170 INFO L241 Difference]: Finished difference. Result has 42 places, 27 transitions, 149 flow [2021-03-26 10:18:18,171 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=154, PETRI_DIFFERENCE_MINUEND_FLOW=113, PETRI_DIFFERENCE_MINUEND_PLACES=33, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=26, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=17, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=149, PETRI_PLACES=42, PETRI_TRANSITIONS=27} [2021-03-26 10:18:18,171 INFO L343 CegarLoopForPetriNet]: 39 programPoint places, 3 predicate places. [2021-03-26 10:18:18,171 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 10:18:18,172 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 42 places, 27 transitions, 149 flow [2021-03-26 10:18:18,172 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 42 places, 27 transitions, 149 flow [2021-03-26 10:18:18,172 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 41 places, 27 transitions, 149 flow [2021-03-26 10:18:18,179 INFO L129 PetriNetUnfolder]: 5/38 cut-off events. [2021-03-26 10:18:18,180 INFO L130 PetriNetUnfolder]: For 51/51 co-relation queries the response was YES. [2021-03-26 10:18:18,180 INFO L84 FinitePrefix]: Finished finitePrefix Result has 123 conditions, 38 events. 5/38 cut-off events. For 51/51 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 102 event pairs, 0 based on Foata normal form. 0/38 useless extension candidates. Maximal degree in co-relation 106. Up to 11 conditions per place. [2021-03-26 10:18:18,181 INFO L142 LiptonReduction]: Number of co-enabled transitions 92 [2021-03-26 10:18:18,476 WARN L205 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2021-03-26 10:18:18,597 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2021-03-26 10:18:19,197 WARN L205 SmtUtils]: Spent 596.00 ms on a formula simplification. DAG size of input: 244 DAG size of output: 191 [2021-03-26 10:18:19,436 WARN L205 SmtUtils]: Spent 237.00 ms on a formula simplification that was a NOOP. DAG size: 175 [2021-03-26 10:18:20,739 WARN L205 SmtUtils]: Spent 1.30 s on a formula simplification. DAG size of input: 345 DAG size of output: 267 [2021-03-26 10:18:21,246 WARN L205 SmtUtils]: Spent 504.00 ms on a formula simplification that was a NOOP. DAG size: 249 [2021-03-26 10:18:21,250 INFO L154 LiptonReduction]: Checked pairs total: 110 [2021-03-26 10:18:21,251 INFO L156 LiptonReduction]: Total number of compositions: 4 [2021-03-26 10:18:21,251 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 3080 [2021-03-26 10:18:21,252 INFO L480 AbstractCegarLoop]: Abstraction has has 39 places, 23 transitions, 129 flow [2021-03-26 10:18:21,253 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 128.8) internal successors, (644), 5 states have internal predecessors, (644), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:18:21,253 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 10:18:21,253 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 10:18:21,253 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-03-26 10:18:21,253 INFO L428 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1INUSE_VIOLATION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-26 10:18:21,253 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 10:18:21,254 INFO L82 PathProgramCache]: Analyzing trace with hash -1826346090, now seen corresponding path program 1 times [2021-03-26 10:18:21,254 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 10:18:21,254 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [406244011] [2021-03-26 10:18:21,254 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 10:18:21,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 10:18:21,325 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:18:21,325 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 10:18:21,326 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:18:21,326 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 10:18:21,329 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:18:21,329 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 10:18:21,333 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 10:18:21,333 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [406244011] [2021-03-26 10:18:21,333 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 10:18:21,333 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-26 10:18:21,333 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1450105686] [2021-03-26 10:18:21,334 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-26 10:18:21,334 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 10:18:21,334 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-26 10:18:21,334 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-03-26 10:18:21,335 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 127 out of 156 [2021-03-26 10:18:21,336 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 39 places, 23 transitions, 129 flow. Second operand has 4 states, 4 states have (on average 128.0) internal successors, (512), 4 states have internal predecessors, (512), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:18:21,336 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 10:18:21,336 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 127 of 156 [2021-03-26 10:18:21,336 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 10:18:21,360 INFO L129 PetriNetUnfolder]: 8/44 cut-off events. [2021-03-26 10:18:21,361 INFO L130 PetriNetUnfolder]: For 85/86 co-relation queries the response was YES. [2021-03-26 10:18:21,361 INFO L84 FinitePrefix]: Finished finitePrefix Result has 141 conditions, 44 events. 8/44 cut-off events. For 85/86 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 136 event pairs, 1 based on Foata normal form. 2/46 useless extension candidates. Maximal degree in co-relation 121. Up to 14 conditions per place. [2021-03-26 10:18:21,361 INFO L132 encePairwiseOnDemand]: 153/156 looper letters, 3 selfloop transitions, 1 changer transitions 3/22 dead transitions. [2021-03-26 10:18:21,361 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 38 places, 22 transitions, 123 flow [2021-03-26 10:18:21,362 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-03-26 10:18:21,362 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-03-26 10:18:21,364 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 514 transitions. [2021-03-26 10:18:21,364 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8237179487179487 [2021-03-26 10:18:21,364 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 514 transitions. [2021-03-26 10:18:21,364 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 514 transitions. [2021-03-26 10:18:21,364 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 10:18:21,365 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 514 transitions. [2021-03-26 10:18:21,366 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 128.5) internal successors, (514), 4 states have internal predecessors, (514), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:18:21,367 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 156.0) internal successors, (780), 5 states have internal predecessors, (780), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:18:21,367 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 156.0) internal successors, (780), 5 states have internal predecessors, (780), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:18:21,367 INFO L185 Difference]: Start difference. First operand has 39 places, 23 transitions, 129 flow. Second operand 4 states and 514 transitions. [2021-03-26 10:18:21,367 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 38 places, 22 transitions, 123 flow [2021-03-26 10:18:21,370 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 31 places, 22 transitions, 102 flow, removed 6 selfloop flow, removed 7 redundant places. [2021-03-26 10:18:21,371 INFO L241 Difference]: Finished difference. Result has 33 places, 19 transitions, 88 flow [2021-03-26 10:18:21,371 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=156, PETRI_DIFFERENCE_MINUEND_FLOW=90, PETRI_DIFFERENCE_MINUEND_PLACES=28, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=21, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=20, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=88, PETRI_PLACES=33, PETRI_TRANSITIONS=19} [2021-03-26 10:18:21,371 INFO L343 CegarLoopForPetriNet]: 39 programPoint places, -6 predicate places. [2021-03-26 10:18:21,371 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 10:18:21,372 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 33 places, 19 transitions, 88 flow [2021-03-26 10:18:21,372 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 33 places, 19 transitions, 88 flow [2021-03-26 10:18:21,372 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 31 places, 19 transitions, 88 flow [2021-03-26 10:18:21,376 INFO L129 PetriNetUnfolder]: 3/25 cut-off events. [2021-03-26 10:18:21,376 INFO L130 PetriNetUnfolder]: For 12/12 co-relation queries the response was YES. [2021-03-26 10:18:21,376 INFO L84 FinitePrefix]: Finished finitePrefix Result has 70 conditions, 25 events. 3/25 cut-off events. For 12/12 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 39 event pairs, 0 based on Foata normal form. 0/25 useless extension candidates. Maximal degree in co-relation 58. Up to 7 conditions per place. [2021-03-26 10:18:21,377 INFO L142 LiptonReduction]: Number of co-enabled transitions 16 [2021-03-26 10:18:21,603 WARN L205 SmtUtils]: Spent 181.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 63 [2021-03-26 10:18:22,001 WARN L205 SmtUtils]: Spent 336.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 89 [2021-03-26 10:18:22,140 WARN L205 SmtUtils]: Spent 137.00 ms on a formula simplification that was a NOOP. DAG size: 86 [2021-03-26 10:18:22,371 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 68 [2021-03-26 10:18:22,595 WARN L205 SmtUtils]: Spent 196.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 87 [2021-03-26 10:18:22,833 WARN L205 SmtUtils]: Spent 182.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 65 [2021-03-26 10:18:23,218 WARN L205 SmtUtils]: Spent 320.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 91 [2021-03-26 10:18:23,361 WARN L205 SmtUtils]: Spent 142.00 ms on a formula simplification that was a NOOP. DAG size: 86 [2021-03-26 10:18:23,363 INFO L154 LiptonReduction]: Checked pairs total: 19 [2021-03-26 10:18:23,363 INFO L156 LiptonReduction]: Total number of compositions: 6 [2021-03-26 10:18:23,363 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 1992 [2021-03-26 10:18:23,364 INFO L480 AbstractCegarLoop]: Abstraction has has 29 places, 17 transitions, 93 flow [2021-03-26 10:18:23,364 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 128.0) internal successors, (512), 4 states have internal predecessors, (512), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:18:23,364 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 10:18:23,364 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 10:18:23,365 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-03-26 10:18:23,365 INFO L428 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr1INUSE_VIOLATION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-26 10:18:23,365 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 10:18:23,365 INFO L82 PathProgramCache]: Analyzing trace with hash -1815858224, now seen corresponding path program 1 times [2021-03-26 10:18:23,365 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 10:18:23,365 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1954746622] [2021-03-26 10:18:23,365 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 10:18:23,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-03-26 10:18:23,391 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-03-26 10:18:23,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-03-26 10:18:23,441 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-03-26 10:18:23,739 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-03-26 10:18:23,739 INFO L634 BasicCegarLoop]: Counterexample might be feasible [2021-03-26 10:18:23,739 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-03-26 10:18:23,972 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.03 10:18:23 BasicIcfg [2021-03-26 10:18:23,972 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-03-26 10:18:23,973 INFO L168 Benchmark]: Toolchain (without parser) took 24041.12 ms. Allocated memory was 255.9 MB in the beginning and 371.2 MB in the end (delta: 115.3 MB). Free memory was 235.1 MB in the beginning and 223.6 MB in the end (delta: 11.5 MB). Peak memory consumption was 126.2 MB. Max. memory is 16.0 GB. [2021-03-26 10:18:23,973 INFO L168 Benchmark]: CDTParser took 0.14 ms. Allocated memory is still 255.9 MB. Free memory is still 237.8 MB. There was no memory consumed. Max. memory is 16.0 GB. [2021-03-26 10:18:23,973 INFO L168 Benchmark]: CACSL2BoogieTranslator took 720.78 ms. Allocated memory is still 255.9 MB. Free memory was 234.6 MB in the beginning and 216.1 MB in the end (delta: 18.6 MB). Peak memory consumption was 16.8 MB. Max. memory is 16.0 GB. [2021-03-26 10:18:23,973 INFO L168 Benchmark]: Boogie Procedure Inliner took 64.57 ms. Allocated memory is still 255.9 MB. Free memory was 215.6 MB in the beginning and 213.0 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-03-26 10:18:23,974 INFO L168 Benchmark]: Boogie Preprocessor took 27.27 ms. Allocated memory is still 255.9 MB. Free memory was 213.0 MB in the beginning and 210.9 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-03-26 10:18:23,974 INFO L168 Benchmark]: RCFGBuilder took 1762.28 ms. Allocated memory is still 255.9 MB. Free memory was 210.9 MB in the beginning and 146.8 MB in the end (delta: 64.2 MB). Peak memory consumption was 66.0 MB. Max. memory is 16.0 GB. [2021-03-26 10:18:23,974 INFO L168 Benchmark]: TraceAbstraction took 21460.69 ms. Allocated memory was 255.9 MB in the beginning and 371.2 MB in the end (delta: 115.3 MB). Free memory was 146.8 MB in the beginning and 223.6 MB in the end (delta: -76.8 MB). Peak memory consumption was 38.7 MB. Max. memory is 16.0 GB. [2021-03-26 10:18:23,975 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14 ms. Allocated memory is still 255.9 MB. Free memory is still 237.8 MB. There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 720.78 ms. Allocated memory is still 255.9 MB. Free memory was 234.6 MB in the beginning and 216.1 MB in the end (delta: 18.6 MB). Peak memory consumption was 16.8 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 64.57 ms. Allocated memory is still 255.9 MB. Free memory was 215.6 MB in the beginning and 213.0 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 27.27 ms. Allocated memory is still 255.9 MB. Free memory was 213.0 MB in the beginning and 210.9 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * RCFGBuilder took 1762.28 ms. Allocated memory is still 255.9 MB. Free memory was 210.9 MB in the beginning and 146.8 MB in the end (delta: 64.2 MB). Peak memory consumption was 66.0 MB. Max. memory is 16.0 GB. * TraceAbstraction took 21460.69 ms. Allocated memory was 255.9 MB in the beginning and 371.2 MB in the end (delta: 115.3 MB). Free memory was 146.8 MB in the beginning and 223.6 MB in the end (delta: -76.8 MB). Peak memory consumption was 38.7 MB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 6387.0ms, 87 PlacesBefore, 39 PlacesAfterwards, 82 TransitionsBefore, 33 TransitionsAfterwards, 1046 CoEnabledTransitionPairs, 4 FixpointIterations, 26 TrivialSequentialCompositions, 25 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 4 ConcurrentYvCompositions, 1 ChoiceCompositions, 56 TotalNumberOfCompositions, 1715 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 857, positive: 803, positive conditional: 803, positive unconditional: 0, negative: 54, negative conditional: 54, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 857, positive: 803, positive conditional: 0, positive unconditional: 803, negative: 54, negative conditional: 0, negative unconditional: 54, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 857, positive: 803, positive conditional: 0, positive unconditional: 803, negative: 54, negative conditional: 0, negative unconditional: 54, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 697, positive: 663, positive conditional: 0, positive unconditional: 663, negative: 34, negative conditional: 0, negative unconditional: 34, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 697, positive: 661, positive conditional: 0, positive unconditional: 661, negative: 36, negative conditional: 0, negative unconditional: 36, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 36, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 34, negative conditional: 0, negative unconditional: 34, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 685, positive: 5, positive conditional: 0, positive unconditional: 5, negative: 680, negative conditional: 0, negative unconditional: 680, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 857, positive: 140, positive conditional: 0, positive unconditional: 140, negative: 20, negative conditional: 0, negative unconditional: 20, unknown: 697, unknown conditional: 0, unknown unconditional: 697] , Statistics on independence cache: Total cache size (in pairs): 697, Positive cache size: 663, Positive conditional cache size: 0, Positive unconditional cache size: 663, Negative cache size: 34, Negative conditional cache size: 0, Negative unconditional cache size: 34, Eliminated conditions: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 6495.4ms, 37 PlacesBefore, 25 PlacesAfterwards, 30 TransitionsBefore, 18 TransitionsAfterwards, 218 CoEnabledTransitionPairs, 4 FixpointIterations, 7 TrivialSequentialCompositions, 6 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 13 TotalNumberOfCompositions, 651 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 283, positive: 228, positive conditional: 228, positive unconditional: 0, negative: 55, negative conditional: 55, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 283, positive: 228, positive conditional: 19, positive unconditional: 209, negative: 55, negative conditional: 8, negative unconditional: 47, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 283, positive: 228, positive conditional: 19, positive unconditional: 209, negative: 55, negative conditional: 8, negative unconditional: 47, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 94, positive: 80, positive conditional: 8, positive unconditional: 72, negative: 14, negative conditional: 4, negative unconditional: 10, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 94, positive: 79, positive conditional: 0, positive unconditional: 79, negative: 15, negative conditional: 0, negative unconditional: 15, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 15, positive: 1, positive conditional: 0, positive unconditional: 1, negative: 14, negative conditional: 4, negative unconditional: 10, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 314, positive: 43, positive conditional: 0, positive unconditional: 43, negative: 271, negative conditional: 100, negative unconditional: 172, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 283, positive: 148, positive conditional: 11, positive unconditional: 137, negative: 41, negative conditional: 4, negative unconditional: 37, unknown: 94, unknown conditional: 12, unknown unconditional: 82] , Statistics on independence cache: Total cache size (in pairs): 791, Positive cache size: 743, Positive conditional cache size: 8, Positive unconditional cache size: 735, Negative cache size: 48, Negative conditional cache size: 4, Negative unconditional cache size: 44, Eliminated conditions: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 1108.6ms, 28 PlacesBefore, 23 PlacesAfterwards, 16 TransitionsBefore, 15 TransitionsAfterwards, 92 CoEnabledTransitionPairs, 2 FixpointIterations, 1 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 TotalNumberOfCompositions, 222 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 99, positive: 71, positive conditional: 71, positive unconditional: 0, negative: 28, negative conditional: 28, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 99, positive: 71, positive conditional: 0, positive unconditional: 71, negative: 28, negative conditional: 0, negative unconditional: 28, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 99, positive: 71, positive conditional: 0, positive unconditional: 71, negative: 28, negative conditional: 0, negative unconditional: 28, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 11, positive: 6, positive conditional: 0, positive unconditional: 6, negative: 5, negative conditional: 0, negative unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 11, positive: 6, positive conditional: 0, positive unconditional: 6, negative: 5, negative conditional: 0, negative unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 5, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 5, negative conditional: 0, negative unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 131, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 131, negative conditional: 0, negative unconditional: 131, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 99, positive: 65, positive conditional: 0, positive unconditional: 65, negative: 23, negative conditional: 0, negative unconditional: 23, unknown: 11, unknown conditional: 0, unknown unconditional: 11] , Statistics on independence cache: Total cache size (in pairs): 802, Positive cache size: 749, Positive conditional cache size: 8, Positive unconditional cache size: 741, Negative cache size: 53, Negative conditional cache size: 4, Negative unconditional cache size: 49, Eliminated conditions: 4 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 65.5ms, 28 PlacesBefore, 28 PlacesAfterwards, 21 TransitionsBefore, 21 TransitionsAfterwards, 108 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 105 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 39, positive: 28, positive conditional: 28, positive unconditional: 0, negative: 11, negative conditional: 11, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 39, positive: 28, positive conditional: 5, positive unconditional: 23, negative: 11, negative conditional: 0, negative unconditional: 11, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 39, positive: 28, positive conditional: 5, positive unconditional: 23, negative: 11, negative conditional: 0, negative unconditional: 11, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 6, positive: 3, positive conditional: 2, positive unconditional: 1, negative: 3, negative conditional: 0, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 6, positive: 3, positive conditional: 0, positive unconditional: 3, negative: 3, negative conditional: 0, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 3, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 3, negative conditional: 0, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 54, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 54, negative conditional: 0, negative unconditional: 54, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 39, positive: 25, positive conditional: 3, positive unconditional: 22, negative: 8, negative conditional: 0, negative unconditional: 8, unknown: 6, unknown conditional: 2, unknown unconditional: 4] , Statistics on independence cache: Total cache size (in pairs): 808, Positive cache size: 752, Positive conditional cache size: 10, Positive unconditional cache size: 742, Negative cache size: 56, Negative conditional cache size: 4, Negative unconditional cache size: 52, Eliminated conditions: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 10.5ms, 34 PlacesBefore, 34 PlacesAfterwards, 26 TransitionsBefore, 26 TransitionsAfterwards, 124 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 61 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 19, positive: 12, positive conditional: 12, positive unconditional: 0, negative: 7, negative conditional: 7, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 19, positive: 12, positive conditional: 4, positive unconditional: 8, negative: 7, negative conditional: 0, negative unconditional: 7, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 19, positive: 12, positive conditional: 4, positive unconditional: 8, negative: 7, negative conditional: 0, negative unconditional: 7, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 19, positive: 12, positive conditional: 4, positive unconditional: 8, negative: 7, negative conditional: 0, negative unconditional: 7, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 808, Positive cache size: 752, Positive conditional cache size: 10, Positive unconditional cache size: 742, Negative cache size: 56, Negative conditional cache size: 4, Negative unconditional cache size: 52, Eliminated conditions: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 3078.6ms, 42 PlacesBefore, 39 PlacesAfterwards, 27 TransitionsBefore, 23 TransitionsAfterwards, 92 CoEnabledTransitionPairs, 3 FixpointIterations, 1 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 1 TrivialYvCompositions, 2 ConcurrentYvCompositions, 0 ChoiceCompositions, 4 TotalNumberOfCompositions, 110 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 43, positive: 28, positive conditional: 28, positive unconditional: 0, negative: 15, negative conditional: 15, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 43, positive: 28, positive conditional: 22, positive unconditional: 6, negative: 15, negative conditional: 0, negative unconditional: 15, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 43, positive: 28, positive conditional: 22, positive unconditional: 6, negative: 15, negative conditional: 0, negative unconditional: 15, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 2, positive: 2, positive conditional: 2, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 2, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 43, positive: 26, positive conditional: 20, positive unconditional: 6, negative: 15, negative conditional: 0, negative unconditional: 15, unknown: 2, unknown conditional: 2, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 810, Positive cache size: 754, Positive conditional cache size: 12, Positive unconditional cache size: 742, Negative cache size: 56, Negative conditional cache size: 4, Negative unconditional cache size: 52, Eliminated conditions: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 1991.5ms, 33 PlacesBefore, 29 PlacesAfterwards, 19 TransitionsBefore, 17 TransitionsAfterwards, 16 CoEnabledTransitionPairs, 3 FixpointIterations, 1 TrivialSequentialCompositions, 5 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 6 TotalNumberOfCompositions, 19 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 19, positive: 19, positive conditional: 19, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 19, positive: 19, positive conditional: 13, positive unconditional: 6, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 19, positive: 19, positive conditional: 13, positive unconditional: 6, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 6, positive: 6, positive conditional: 4, positive unconditional: 2, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 6, positive: 6, positive conditional: 0, positive unconditional: 6, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 19, positive: 13, positive conditional: 9, positive unconditional: 4, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 6, unknown conditional: 4, unknown unconditional: 2] , Statistics on independence cache: Total cache size (in pairs): 816, Positive cache size: 760, Positive conditional cache size: 16, Positive unconditional cache size: 744, Negative cache size: 56, Negative conditional cache size: 4, Negative unconditional cache size: 52, Eliminated conditions: 2 - CounterExampleResult [Line: 18]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L708] 0 int __unbuffered_cnt = 0; [L710] 0 int __unbuffered_p1_EAX = 0; [L712] 0 int __unbuffered_p1_EBX = 0; [L713] 0 _Bool main$tmp_guard0; [L714] 0 _Bool main$tmp_guard1; [L716] 0 int x = 0; [L718] 0 int y = 0; [L719] 0 _Bool y$flush_delayed; [L720] 0 int y$mem_tmp; [L721] 0 _Bool y$r_buff0_thd0; [L722] 0 _Bool y$r_buff0_thd1; [L723] 0 _Bool y$r_buff0_thd2; [L724] 0 _Bool y$r_buff1_thd0; [L725] 0 _Bool y$r_buff1_thd1; [L726] 0 _Bool y$r_buff1_thd2; [L727] 0 _Bool y$read_delayed; [L728] 0 int *y$read_delayed_var; [L729] 0 int y$w_buff0; [L730] 0 _Bool y$w_buff0_used; [L731] 0 int y$w_buff1; [L732] 0 _Bool y$w_buff1_used; [L734] 0 int z = 0; [L735] 0 _Bool weak$$choice0; [L736] 0 _Bool weak$$choice2; [L802] 0 pthread_t t1607; [L803] FCALL, FORK 0 pthread_create(&t1607, ((void *)0), P0, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=0, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, z=0] [L804] 0 pthread_t t1608; [L805] FCALL, FORK 0 pthread_create(&t1608, ((void *)0), P1, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=0, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, z=0] [L760] 2 y$w_buff1 = y$w_buff0 [L761] 2 y$w_buff0 = 2 [L762] 2 y$w_buff1_used = y$w_buff0_used [L763] 2 y$w_buff0_used = (_Bool)1 [L18] COND FALSE 2 !(!expression) [L765] 2 y$r_buff1_thd0 = y$r_buff0_thd0 [L766] 2 y$r_buff1_thd1 = y$r_buff0_thd1 [L767] 2 y$r_buff1_thd2 = y$r_buff0_thd2 [L768] 2 y$r_buff0_thd2 = (_Bool)1 VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=1, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=2, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0, z=0] [L771] 2 z = 1 [L774] 2 __unbuffered_p1_EAX = z [L777] 2 __unbuffered_p1_EBX = x VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=1, __unbuffered_p1_EBX=0, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=1, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=2, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0, z=1] [L740] 1 x = 1 VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=1, __unbuffered_p1_EBX=0, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=1, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=1, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=2, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0, z=1] [L743] 1 y = 1 VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=1, __unbuffered_p1_EBX=0, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=1, y=1, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=1, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=2, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0, z=1] [L780] EXPR 2 y$w_buff0_used && y$r_buff0_thd2 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd2 ? y$w_buff1 : y) [L780] 2 y = y$w_buff0_used && y$r_buff0_thd2 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd2 ? y$w_buff1 : y) [L781] EXPR 2 y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : y$w_buff0_used [L781] 2 y$w_buff0_used = y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : y$w_buff0_used [L782] EXPR 2 y$w_buff0_used && y$r_buff0_thd2 || y$w_buff1_used && y$r_buff1_thd2 ? (_Bool)0 : y$w_buff1_used [L782] 2 y$w_buff1_used = y$w_buff0_used && y$r_buff0_thd2 || y$w_buff1_used && y$r_buff1_thd2 ? (_Bool)0 : y$w_buff1_used [L783] EXPR 2 y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : y$r_buff0_thd2 [L783] 2 y$r_buff0_thd2 = y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : y$r_buff0_thd2 [L784] EXPR 2 y$w_buff0_used && y$r_buff0_thd2 || y$w_buff1_used && y$r_buff1_thd2 ? (_Bool)0 : y$r_buff1_thd2 [L784] 2 y$r_buff1_thd2 = y$w_buff0_used && y$r_buff0_thd2 || y$w_buff1_used && y$r_buff1_thd2 ? (_Bool)0 : y$r_buff1_thd2 [L746] EXPR 1 y$w_buff0_used && y$r_buff0_thd1 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd1 ? y$w_buff1 : y) [L746] EXPR 1 y$w_buff1_used && y$r_buff1_thd1 ? y$w_buff1 : y [L746] EXPR 1 y$w_buff0_used && y$r_buff0_thd1 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd1 ? y$w_buff1 : y) [L746] 1 y = y$w_buff0_used && y$r_buff0_thd1 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd1 ? y$w_buff1 : y) [L747] EXPR 1 y$w_buff0_used && y$r_buff0_thd1 ? (_Bool)0 : y$w_buff0_used [L747] 1 y$w_buff0_used = y$w_buff0_used && y$r_buff0_thd1 ? (_Bool)0 : y$w_buff0_used [L748] EXPR 1 y$w_buff0_used && y$r_buff0_thd1 || y$w_buff1_used && y$r_buff1_thd1 ? (_Bool)0 : y$w_buff1_used [L748] 1 y$w_buff1_used = y$w_buff0_used && y$r_buff0_thd1 || y$w_buff1_used && y$r_buff1_thd1 ? (_Bool)0 : y$w_buff1_used [L749] EXPR 1 y$w_buff0_used && y$r_buff0_thd1 ? (_Bool)0 : y$r_buff0_thd1 [L749] 1 y$r_buff0_thd1 = y$w_buff0_used && y$r_buff0_thd1 ? (_Bool)0 : y$r_buff0_thd1 [L750] EXPR 1 y$w_buff0_used && y$r_buff0_thd1 || y$w_buff1_used && y$r_buff1_thd1 ? (_Bool)0 : y$r_buff1_thd1 [L750] 1 y$r_buff1_thd1 = y$w_buff0_used && y$r_buff0_thd1 || y$w_buff1_used && y$r_buff1_thd1 ? (_Bool)0 : y$r_buff1_thd1 [L753] 1 __unbuffered_cnt = __unbuffered_cnt + 1 [L755] 1 return 0; [L787] 2 __unbuffered_cnt = __unbuffered_cnt + 1 [L789] 2 return 0; [L807] 0 main$tmp_guard0 = __unbuffered_cnt == 2 [L3] COND FALSE 0 !(!cond) [L811] EXPR 0 y$w_buff0_used && y$r_buff0_thd0 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd0 ? y$w_buff1 : y) [L811] EXPR 0 y$w_buff1_used && y$r_buff1_thd0 ? y$w_buff1 : y [L811] EXPR 0 y$w_buff0_used && y$r_buff0_thd0 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd0 ? y$w_buff1 : y) [L811] 0 y = y$w_buff0_used && y$r_buff0_thd0 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd0 ? y$w_buff1 : y) [L812] EXPR 0 y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$w_buff0_used [L812] 0 y$w_buff0_used = y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$w_buff0_used [L813] EXPR 0 y$w_buff0_used && y$r_buff0_thd0 || y$w_buff1_used && y$r_buff1_thd0 ? (_Bool)0 : y$w_buff1_used [L813] 0 y$w_buff1_used = y$w_buff0_used && y$r_buff0_thd0 || y$w_buff1_used && y$r_buff1_thd0 ? (_Bool)0 : y$w_buff1_used [L814] EXPR 0 y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$r_buff0_thd0 [L814] 0 y$r_buff0_thd0 = y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$r_buff0_thd0 [L815] EXPR 0 y$w_buff0_used && y$r_buff0_thd0 || y$w_buff1_used && y$r_buff1_thd0 ? (_Bool)0 : y$r_buff1_thd0 [L815] 0 y$r_buff1_thd0 = y$w_buff0_used && y$r_buff0_thd0 || y$w_buff1_used && y$r_buff1_thd0 ? (_Bool)0 : y$r_buff1_thd0 [L818] 0 weak$$choice0 = __VERIFIER_nondet_bool() [L819] 0 weak$$choice2 = __VERIFIER_nondet_bool() [L820] 0 y$flush_delayed = weak$$choice2 [L821] 0 y$mem_tmp = y [L822] EXPR 0 !y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y : (y$w_buff0_used && y$r_buff0_thd0 ? y$w_buff0 : y$w_buff1) [L822] 0 y = !y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y : (y$w_buff0_used && y$r_buff0_thd0 ? y$w_buff0 : y$w_buff1) [L823] EXPR 0 weak$$choice2 ? y$w_buff0 : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$w_buff0 : (y$w_buff0_used && y$r_buff0_thd0 ? y$w_buff0 : y$w_buff0)) [L823] 0 y$w_buff0 = weak$$choice2 ? y$w_buff0 : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$w_buff0 : (y$w_buff0_used && y$r_buff0_thd0 ? y$w_buff0 : y$w_buff0)) [L824] EXPR 0 weak$$choice2 ? y$w_buff1 : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$w_buff1 : (y$w_buff0_used && y$r_buff0_thd0 ? y$w_buff1 : y$w_buff1)) [L824] 0 y$w_buff1 = weak$$choice2 ? y$w_buff1 : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$w_buff1 : (y$w_buff0_used && y$r_buff0_thd0 ? y$w_buff1 : y$w_buff1)) [L825] EXPR 0 weak$$choice2 ? y$w_buff0_used : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$w_buff0_used : (y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$w_buff0_used)) [L825] 0 y$w_buff0_used = weak$$choice2 ? y$w_buff0_used : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$w_buff0_used : (y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$w_buff0_used)) [L826] EXPR 0 weak$$choice2 ? y$w_buff1_used : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$w_buff1_used : (y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : (_Bool)0)) [L826] 0 y$w_buff1_used = weak$$choice2 ? y$w_buff1_used : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$w_buff1_used : (y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : (_Bool)0)) [L827] EXPR 0 weak$$choice2 ? y$r_buff0_thd0 : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$r_buff0_thd0 : (y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$r_buff0_thd0)) [L827] 0 y$r_buff0_thd0 = weak$$choice2 ? y$r_buff0_thd0 : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$r_buff0_thd0 : (y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$r_buff0_thd0)) [L828] EXPR 0 weak$$choice2 ? y$r_buff1_thd0 : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$r_buff1_thd0 : (y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : (_Bool)0)) [L828] 0 y$r_buff1_thd0 = weak$$choice2 ? y$r_buff1_thd0 : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$r_buff1_thd0 : (y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : (_Bool)0)) [L829] 0 main$tmp_guard1 = !(y == 2 && __unbuffered_p1_EAX == 1 && __unbuffered_p1_EBX == 0) [L830] EXPR 0 y$flush_delayed ? y$mem_tmp : y [L830] 0 y = y$flush_delayed ? y$mem_tmp : y [L831] 0 y$flush_delayed = (_Bool)0 [L18] COND TRUE 0 !expression [L18] 0 reach_error() VAL [\result={0:0}, __unbuffered_cnt=2, __unbuffered_p1_EAX=1, __unbuffered_p1_EBX=0, arg={0:0}, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, weak$$choice0=50, weak$$choice2=255, x=1, y=2, y$flush_delayed=0, y$mem_tmp=2, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=1, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=2, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, z=1] - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 83 locations, 2 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 3.5ms, RemoveRedundantFlowTime: 0.0ms, RemoveRedundantFlowUnfoldingTime: 0.0ms, BackfoldingTime: 0.0ms, BackfoldingUnfoldingTime: 0.0ms, FlowIncreaseByBackfolding: 0, BasicCegarLoop: VerificationResult: UNSAFE, OverallTime: 21128.1ms, OverallIterations: 7, TraceHistogramMax: 1, EmptinessCheckTime: 0.0ms, AutomataDifference: 535.8ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 6451.5ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 20 SDtfs, 20 SDslu, 15 SDs, 0 SdLazy, 98 SolverSat, 33 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 137.9ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 28 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 152.2ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=149occurred in iteration=5, InterpolantAutomatonStates: 30, 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: 21.4ms SsaConstructionTime, 343.3ms SatisfiabilityAnalysisTime, 499.6ms InterpolantComputationTime, 89 NumberOfCodeBlocks, 89 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 70 ConstructedInterpolants, 0 QuantifiedInterpolants, 286 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...