/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-SemanticLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-wmm/mix054_tso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-d5b4239aa45c8d22a30959944f2ef622f7386a6d-d5b4239 [2021-03-24 19:43:43,673 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-03-24 19:43:43,674 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-03-24 19:43:43,699 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-03-24 19:43:43,699 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-03-24 19:43:43,700 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-03-24 19:43:43,701 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-03-24 19:43:43,707 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-03-24 19:43:43,710 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-03-24 19:43:43,714 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-03-24 19:43:43,715 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-03-24 19:43:43,717 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-03-24 19:43:43,718 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-03-24 19:43:43,720 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-03-24 19:43:43,721 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-03-24 19:43:43,724 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-03-24 19:43:43,725 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-03-24 19:43:43,726 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-03-24 19:43:43,729 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-03-24 19:43:43,737 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-03-24 19:43:43,739 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-03-24 19:43:43,740 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-03-24 19:43:43,741 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-03-24 19:43:43,743 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-03-24 19:43:43,747 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-03-24 19:43:43,757 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-03-24 19:43:43,758 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-03-24 19:43:43,758 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-03-24 19:43:43,762 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-SemanticLbe.epf [2021-03-24 19:43:43,799 INFO L113 SettingsManager]: Loading preferences was successful [2021-03-24 19:43:43,800 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-03-24 19:43:43,801 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-03-24 19:43:43,801 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-03-24 19:43:43,801 INFO L138 SettingsManager]: * Use SBE=true [2021-03-24 19:43:43,801 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-03-24 19:43:43,801 INFO L138 SettingsManager]: * sizeof long=4 [2021-03-24 19:43:43,802 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-03-24 19:43:43,802 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-03-24 19:43:43,802 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-03-24 19:43:43,802 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-03-24 19:43:43,802 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-03-24 19:43:43,802 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-03-24 19:43:43,803 INFO L138 SettingsManager]: * sizeof long double=12 [2021-03-24 19:43:43,803 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-03-24 19:43:43,803 INFO L138 SettingsManager]: * Use constant arrays=true [2021-03-24 19:43:43,803 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-03-24 19:43:43,803 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-03-24 19:43:43,803 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-03-24 19:43:43,803 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-03-24 19:43:43,804 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-03-24 19:43:43,804 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-03-24 19:43:43,804 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-03-24 19:43:43,804 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-03-24 19:43:43,804 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-03-24 19:43:43,804 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-03-24 19:43:43,804 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-03-24 19:43:43,805 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-03-24 19:43:43,805 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-03-24 19:43:44,114 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-03-24 19:43:44,139 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-03-24 19:43:44,141 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-03-24 19:43:44,142 INFO L271 PluginConnector]: Initializing CDTParser... [2021-03-24 19:43:44,144 INFO L275 PluginConnector]: CDTParser initialized [2021-03-24 19:43:44,145 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/mix054_tso.opt.i [2021-03-24 19:43:44,200 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2cdab8d03/2983357a365d41ed8f2ae18325e90bd4/FLAG987cc253e [2021-03-24 19:43:45,220 INFO L306 CDTParser]: Found 1 translation units. [2021-03-24 19:43:45,221 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/mix054_tso.opt.i [2021-03-24 19:43:45,243 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2cdab8d03/2983357a365d41ed8f2ae18325e90bd4/FLAG987cc253e [2021-03-24 19:43:45,259 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2cdab8d03/2983357a365d41ed8f2ae18325e90bd4 [2021-03-24 19:43:45,261 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-03-24 19:43:45,263 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-03-24 19:43:45,266 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-03-24 19:43:45,266 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-03-24 19:43:45,269 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-03-24 19:43:45,270 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.03 07:43:45" (1/1) ... [2021-03-24 19:43:45,272 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@b2c0c7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.03 07:43:45, skipping insertion in model container [2021-03-24 19:43:45,272 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.03 07:43:45" (1/1) ... [2021-03-24 19:43:45,277 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-03-24 19:43:45,329 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-03-24 19:43:45,498 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/mix054_tso.opt.i[948,961] [2021-03-24 19:43:45,723 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-03-24 19:43:45,735 INFO L203 MainTranslator]: Completed pre-run [2021-03-24 19:43:45,749 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/mix054_tso.opt.i[948,961] [2021-03-24 19:43:45,796 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-03-24 19:43:45,852 INFO L208 MainTranslator]: Completed translation [2021-03-24 19:43:45,853 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.03 07:43:45 WrapperNode [2021-03-24 19:43:45,853 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-03-24 19:43:45,854 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-03-24 19:43:45,854 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-03-24 19:43:45,854 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-03-24 19:43:45,860 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.03 07:43:45" (1/1) ... [2021-03-24 19:43:45,874 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.03 07:43:45" (1/1) ... [2021-03-24 19:43:45,902 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-03-24 19:43:45,903 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-03-24 19:43:45,903 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-03-24 19:43:45,903 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-03-24 19:43:45,909 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.03 07:43:45" (1/1) ... [2021-03-24 19:43:45,910 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.03 07:43:45" (1/1) ... [2021-03-24 19:43:45,913 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.03 07:43:45" (1/1) ... [2021-03-24 19:43:45,914 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.03 07:43:45" (1/1) ... [2021-03-24 19:43:45,923 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.03 07:43:45" (1/1) ... [2021-03-24 19:43:45,933 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.03 07:43:45" (1/1) ... [2021-03-24 19:43:45,942 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.03 07:43:45" (1/1) ... [2021-03-24 19:43:45,945 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-03-24 19:43:45,946 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-03-24 19:43:45,946 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-03-24 19:43:45,947 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-03-24 19:43:45,947 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.03 07:43:45" (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 [2021-03-24 19:43:46,012 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-03-24 19:43:46,012 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-03-24 19:43:46,012 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-03-24 19:43:46,012 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-03-24 19:43:46,012 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2021-03-24 19:43:46,012 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2021-03-24 19:43:46,012 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2021-03-24 19:43:46,013 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2021-03-24 19:43:46,013 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-03-24 19:43:46,013 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-03-24 19:43:46,013 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-03-24 19:43:46,013 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-03-24 19:43:46,015 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-03-24 19:43:47,712 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-03-24 19:43:47,712 INFO L299 CfgBuilder]: Removed 10 assume(true) statements. [2021-03-24 19:43:47,714 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.03 07:43:47 BoogieIcfgContainer [2021-03-24 19:43:47,714 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-03-24 19:43:47,715 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-03-24 19:43:47,715 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-03-24 19:43:47,718 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-03-24 19:43:47,718 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.03 07:43:45" (1/3) ... [2021-03-24 19:43:47,719 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2d5ccb83 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.03 07:43:47, skipping insertion in model container [2021-03-24 19:43:47,719 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.03 07:43:45" (2/3) ... [2021-03-24 19:43:47,719 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2d5ccb83 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.03 07:43:47, skipping insertion in model container [2021-03-24 19:43:47,719 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.03 07:43:47" (3/3) ... [2021-03-24 19:43:47,720 INFO L111 eAbstractionObserver]: Analyzing ICFG mix054_tso.opt.i [2021-03-24 19:43:47,728 INFO L149 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-03-24 19:43:47,732 INFO L161 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2021-03-24 19:43:47,733 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-03-24 19:43:47,765 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:43:47,765 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:43:47,765 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:43:47,765 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:43:47,766 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:43:47,766 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:43:47,766 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:43:47,766 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:43:47,766 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:43:47,766 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:43:47,766 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:43:47,767 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:43:47,767 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:43:47,767 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:43:47,767 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:43:47,767 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:43:47,768 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:43:47,768 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:43:47,768 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:43:47,768 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:43:47,768 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:43:47,768 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:43:47,769 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:43:47,769 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:43:47,769 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:43:47,770 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:43:47,770 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:43:47,770 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:43:47,770 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:43:47,770 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:43:47,771 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:43:47,771 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:43:47,771 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:43:47,771 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:43:47,771 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:43:47,771 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:43:47,771 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:43:47,772 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:43:47,772 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:43:47,772 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:43:47,772 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:43:47,773 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:43:47,773 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:43:47,774 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:43:47,774 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:43:47,774 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:43:47,774 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:43:47,774 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:43:47,774 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:43:47,775 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:43:47,775 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:43:47,775 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:43:47,775 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:43:47,775 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:43:47,775 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:43:47,775 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:43:47,776 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:43:47,776 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:43:47,776 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:43:47,776 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:43:47,778 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:43:47,778 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:43:47,778 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:43:47,779 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:43:47,779 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:43:47,779 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:43:47,779 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:43:47,779 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:43:47,780 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:43:47,780 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:43:47,781 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:43:47,782 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:43:47,782 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:43:47,782 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:43:47,782 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:43:47,782 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:43:47,782 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:43:47,782 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:43:47,783 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:43:47,783 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:43:47,783 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:43:47,784 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:43:47,785 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-03-24 19:43:47,801 INFO L253 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2021-03-24 19:43:47,826 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-03-24 19:43:47,826 INFO L377 AbstractCegarLoop]: Hoare is false [2021-03-24 19:43:47,826 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-03-24 19:43:47,826 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-03-24 19:43:47,826 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-03-24 19:43:47,826 INFO L381 AbstractCegarLoop]: Difference is false [2021-03-24 19:43:47,826 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-03-24 19:43:47,827 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-03-24 19:43:47,835 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 85 places, 80 transitions, 170 flow [2021-03-24 19:43:47,863 INFO L129 PetriNetUnfolder]: 2/78 cut-off events. [2021-03-24 19:43:47,863 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-24 19:43:47,865 INFO L84 FinitePrefix]: Finished finitePrefix Result has 85 conditions, 78 events. 2/78 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 51 event pairs, 0 based on Foata normal form. 0/74 useless extension candidates. Maximal degree in co-relation 46. Up to 2 conditions per place. [2021-03-24 19:43:47,866 INFO L82 GeneralOperation]: Start removeDead. Operand has 85 places, 80 transitions, 170 flow [2021-03-24 19:43:47,869 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 83 places, 78 transitions, 162 flow [2021-03-24 19:43:47,870 INFO L165 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-03-24 19:43:47,880 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 83 places, 78 transitions, 162 flow [2021-03-24 19:43:47,882 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 83 places, 78 transitions, 162 flow [2021-03-24 19:43:47,883 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 83 places, 78 transitions, 162 flow [2021-03-24 19:43:47,897 INFO L129 PetriNetUnfolder]: 2/78 cut-off events. [2021-03-24 19:43:47,897 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-24 19:43:47,898 INFO L84 FinitePrefix]: Finished finitePrefix Result has 85 conditions, 78 events. 2/78 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. 0/74 useless extension candidates. Maximal degree in co-relation 46. Up to 2 conditions per place. [2021-03-24 19:43:47,900 INFO L142 LiptonReduction]: Number of co-enabled transitions 918 [2021-03-24 19:43:48,763 WARN L205 SmtUtils]: Spent 759.00 ms on a formula simplification. DAG size of input: 224 DAG size of output: 184 [2021-03-24 19:43:49,109 WARN L205 SmtUtils]: Spent 335.00 ms on a formula simplification that was a NOOP. DAG size: 182 [2021-03-24 19:43:50,550 WARN L205 SmtUtils]: Spent 1.44 s on a formula simplification. DAG size of input: 308 DAG size of output: 264 [2021-03-24 19:43:51,135 WARN L205 SmtUtils]: Spent 582.00 ms on a formula simplification that was a NOOP. DAG size: 261 [2021-03-24 19:43:52,092 WARN L205 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 58 [2021-03-24 19:43:52,474 WARN L205 SmtUtils]: Spent 323.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 88 [2021-03-24 19:43:52,625 WARN L205 SmtUtils]: Spent 144.00 ms on a formula simplification that was a NOOP. DAG size: 85 [2021-03-24 19:43:53,936 WARN L205 SmtUtils]: Spent 559.00 ms on a formula simplification. DAG size of input: 184 DAG size of output: 183 [2021-03-24 19:43:54,233 WARN L205 SmtUtils]: Spent 296.00 ms on a formula simplification that was a NOOP. DAG size: 183 [2021-03-24 19:43:55,475 WARN L205 SmtUtils]: Spent 1.24 s on a formula simplification. DAG size of input: 263 DAG size of output: 262 [2021-03-24 19:43:56,094 WARN L205 SmtUtils]: Spent 616.00 ms on a formula simplification that was a NOOP. DAG size: 262 [2021-03-24 19:43:56,419 INFO L154 LiptonReduction]: Checked pairs total: 1544 [2021-03-24 19:43:56,419 INFO L156 LiptonReduction]: Total number of compositions: 56 [2021-03-24 19:43:56,421 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 8552 [2021-03-24 19:43:56,429 INFO L129 PetriNetUnfolder]: 0/14 cut-off events. [2021-03-24 19:43:56,429 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-24 19:43:56,429 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 19:43:56,430 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-24 19:43:56,430 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-24 19:43:56,434 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 19:43:56,434 INFO L82 PathProgramCache]: Analyzing trace with hash -1685503753, now seen corresponding path program 1 times [2021-03-24 19:43:56,441 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 19:43:56,442 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1171709603] [2021-03-24 19:43:56,442 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 19:43:56,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 19:43:56,635 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 19:43:56,636 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 19:43:56,637 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 19:43:56,637 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 19:43:56,643 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 19:43:56,644 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1171709603] [2021-03-24 19:43:56,644 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 19:43:56,644 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-03-24 19:43:56,645 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [413560153] [2021-03-24 19:43:56,652 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-24 19:43:56,652 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 19:43:56,662 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-24 19:43:56,663 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-24 19:43:56,664 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 114 out of 136 [2021-03-24 19:43:56,669 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 36 places, 30 transitions, 66 flow. Second operand has 3 states, 3 states have (on average 114.66666666666667) internal successors, (344), 3 states have internal predecessors, (344), 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) [2021-03-24 19:43:56,669 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 19:43:56,669 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 114 of 136 [2021-03-24 19:43:56,670 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 19:43:56,738 INFO L129 PetriNetUnfolder]: 23/91 cut-off events. [2021-03-24 19:43:56,739 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-24 19:43:56,739 INFO L84 FinitePrefix]: Finished finitePrefix Result has 146 conditions, 91 events. 23/91 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 335 event pairs, 9 based on Foata normal form. 6/90 useless extension candidates. Maximal degree in co-relation 131. Up to 37 conditions per place. [2021-03-24 19:43:56,740 INFO L132 encePairwiseOnDemand]: 132/136 looper letters, 7 selfloop transitions, 2 changer transitions 5/31 dead transitions. [2021-03-24 19:43:56,740 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 36 places, 31 transitions, 90 flow [2021-03-24 19:43:56,741 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-24 19:43:56,743 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-24 19:43:56,750 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 356 transitions. [2021-03-24 19:43:56,752 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8725490196078431 [2021-03-24 19:43:56,753 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 356 transitions. [2021-03-24 19:43:56,753 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 356 transitions. [2021-03-24 19:43:56,755 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 19:43:56,757 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 356 transitions. [2021-03-24 19:43:56,760 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 118.66666666666667) internal successors, (356), 3 states have internal predecessors, (356), 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) [2021-03-24 19:43:56,768 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 136.0) internal successors, (544), 4 states have internal predecessors, (544), 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) [2021-03-24 19:43:56,768 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 136.0) internal successors, (544), 4 states have internal predecessors, (544), 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) [2021-03-24 19:43:56,769 INFO L185 Difference]: Start difference. First operand has 36 places, 30 transitions, 66 flow. Second operand 3 states and 356 transitions. [2021-03-24 19:43:56,770 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 36 places, 31 transitions, 90 flow [2021-03-24 19:43:56,772 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 34 places, 31 transitions, 88 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-03-24 19:43:56,773 INFO L241 Difference]: Finished difference. Result has 34 places, 23 transitions, 54 flow [2021-03-24 19:43:56,775 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=136, PETRI_DIFFERENCE_MINUEND_FLOW=58, PETRI_DIFFERENCE_MINUEND_PLACES=32, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=27, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=25, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=54, PETRI_PLACES=34, PETRI_TRANSITIONS=23} [2021-03-24 19:43:56,776 INFO L343 CegarLoopForPetriNet]: 36 programPoint places, -2 predicate places. [2021-03-24 19:43:56,776 INFO L480 AbstractCegarLoop]: Abstraction has has 34 places, 23 transitions, 54 flow [2021-03-24 19:43:56,776 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 114.66666666666667) internal successors, (344), 3 states have internal predecessors, (344), 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) [2021-03-24 19:43:56,776 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 19:43:56,776 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-24 19:43:56,777 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-03-24 19:43:56,777 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-24 19:43:56,777 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 19:43:56,777 INFO L82 PathProgramCache]: Analyzing trace with hash 1168850318, now seen corresponding path program 1 times [2021-03-24 19:43:56,777 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 19:43:56,778 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1705368764] [2021-03-24 19:43:56,778 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 19:43:56,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 19:43:56,944 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 19:43:56,945 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 19:43:56,949 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 19:43:56,950 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-24 19:43:56,955 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 19:43:56,956 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-24 19:43:56,964 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 19:43:56,965 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-24 19:43:56,976 INFO L142 QuantifierPusher]: treesize reduction 9, result has 30.8 percent of original size [2021-03-24 19:43:56,976 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-24 19:43:56,981 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 19:43:56,982 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1705368764] [2021-03-24 19:43:56,982 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 19:43:56,982 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-03-24 19:43:56,982 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [539162015] [2021-03-24 19:43:56,984 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-03-24 19:43:56,984 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 19:43:56,984 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-03-24 19:43:56,985 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-03-24 19:43:56,988 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 101 out of 136 [2021-03-24 19:43:56,989 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 34 places, 23 transitions, 54 flow. Second operand has 6 states, 6 states have (on average 101.83333333333333) internal successors, (611), 6 states have internal predecessors, (611), 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) [2021-03-24 19:43:56,989 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 19:43:56,989 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 101 of 136 [2021-03-24 19:43:56,989 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 19:43:57,135 INFO L129 PetriNetUnfolder]: 42/119 cut-off events. [2021-03-24 19:43:57,136 INFO L130 PetriNetUnfolder]: For 14/14 co-relation queries the response was YES. [2021-03-24 19:43:57,137 INFO L84 FinitePrefix]: Finished finitePrefix Result has 227 conditions, 119 events. 42/119 cut-off events. For 14/14 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 460 event pairs, 20 based on Foata normal form. 9/125 useless extension candidates. Maximal degree in co-relation 211. Up to 70 conditions per place. [2021-03-24 19:43:57,138 INFO L132 encePairwiseOnDemand]: 128/136 looper letters, 8 selfloop transitions, 8 changer transitions 9/39 dead transitions. [2021-03-24 19:43:57,138 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 36 places, 39 transitions, 142 flow [2021-03-24 19:43:57,139 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-24 19:43:57,139 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-24 19:43:57,144 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 735 transitions. [2021-03-24 19:43:57,144 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7720588235294118 [2021-03-24 19:43:57,145 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 735 transitions. [2021-03-24 19:43:57,145 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 735 transitions. [2021-03-24 19:43:57,145 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 19:43:57,146 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 735 transitions. [2021-03-24 19:43:57,148 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 105.0) internal successors, (735), 7 states have internal predecessors, (735), 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) [2021-03-24 19:43:57,152 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 136.0) internal successors, (1088), 8 states have internal predecessors, (1088), 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) [2021-03-24 19:43:57,153 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 136.0) internal successors, (1088), 8 states have internal predecessors, (1088), 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) [2021-03-24 19:43:57,153 INFO L185 Difference]: Start difference. First operand has 34 places, 23 transitions, 54 flow. Second operand 7 states and 735 transitions. [2021-03-24 19:43:57,153 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 36 places, 39 transitions, 142 flow [2021-03-24 19:43:57,154 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 34 places, 39 transitions, 132 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-03-24 19:43:57,155 INFO L241 Difference]: Finished difference. Result has 39 places, 29 transitions, 110 flow [2021-03-24 19:43:57,155 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=136, PETRI_DIFFERENCE_MINUEND_FLOW=50, PETRI_DIFFERENCE_MINUEND_PLACES=28, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=23, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=16, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=110, PETRI_PLACES=39, PETRI_TRANSITIONS=29} [2021-03-24 19:43:57,156 INFO L343 CegarLoopForPetriNet]: 36 programPoint places, 3 predicate places. [2021-03-24 19:43:57,156 INFO L480 AbstractCegarLoop]: Abstraction has has 39 places, 29 transitions, 110 flow [2021-03-24 19:43:57,156 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 101.83333333333333) internal successors, (611), 6 states have internal predecessors, (611), 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) [2021-03-24 19:43:57,158 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 19:43:57,158 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-24 19:43:57,159 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-03-24 19:43:57,159 INFO L428 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-24 19:43:57,163 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 19:43:57,164 INFO L82 PathProgramCache]: Analyzing trace with hash 1874634001, now seen corresponding path program 1 times [2021-03-24 19:43:57,164 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 19:43:57,164 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1618363798] [2021-03-24 19:43:57,164 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 19:43:57,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 19:43:57,300 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 19:43:57,302 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 19:43:57,303 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 19:43:57,304 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-24 19:43:57,312 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 19:43:57,313 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-24 19:43:57,321 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 19:43:57,322 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-24 19:43:57,333 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 19:43:57,334 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-24 19:43:57,338 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 19:43:57,347 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-24 19:43:57,361 INFO L142 QuantifierPusher]: treesize reduction 9, result has 30.8 percent of original size [2021-03-24 19:43:57,361 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-24 19:43:57,367 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 19:43:57,367 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1618363798] [2021-03-24 19:43:57,367 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 19:43:57,367 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-03-24 19:43:57,367 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1548803476] [2021-03-24 19:43:57,368 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-24 19:43:57,368 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 19:43:57,368 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-24 19:43:57,369 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2021-03-24 19:43:57,370 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 99 out of 136 [2021-03-24 19:43:57,370 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 39 places, 29 transitions, 110 flow. Second operand has 7 states, 7 states have (on average 100.0) internal successors, (700), 7 states have internal predecessors, (700), 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) [2021-03-24 19:43:57,370 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 19:43:57,371 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 99 of 136 [2021-03-24 19:43:57,371 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 19:43:57,506 INFO L129 PetriNetUnfolder]: 36/105 cut-off events. [2021-03-24 19:43:57,506 INFO L130 PetriNetUnfolder]: For 119/123 co-relation queries the response was YES. [2021-03-24 19:43:57,508 INFO L84 FinitePrefix]: Finished finitePrefix Result has 309 conditions, 105 events. 36/105 cut-off events. For 119/123 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 385 event pairs, 19 based on Foata normal form. 9/111 useless extension candidates. Maximal degree in co-relation 285. Up to 62 conditions per place. [2021-03-24 19:43:57,509 INFO L132 encePairwiseOnDemand]: 128/136 looper letters, 9 selfloop transitions, 9 changer transitions 7/38 dead transitions. [2021-03-24 19:43:57,509 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 43 places, 38 transitions, 202 flow [2021-03-24 19:43:57,510 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-24 19:43:57,510 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-03-24 19:43:57,512 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 816 transitions. [2021-03-24 19:43:57,513 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.75 [2021-03-24 19:43:57,513 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 816 transitions. [2021-03-24 19:43:57,513 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 816 transitions. [2021-03-24 19:43:57,513 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 19:43:57,513 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 816 transitions. [2021-03-24 19:43:57,515 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 102.0) internal successors, (816), 8 states have internal predecessors, (816), 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) [2021-03-24 19:43:57,517 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 136.0) internal successors, (1224), 9 states have internal predecessors, (1224), 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) [2021-03-24 19:43:57,518 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 136.0) internal successors, (1224), 9 states have internal predecessors, (1224), 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) [2021-03-24 19:43:57,518 INFO L185 Difference]: Start difference. First operand has 39 places, 29 transitions, 110 flow. Second operand 8 states and 816 transitions. [2021-03-24 19:43:57,518 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 43 places, 38 transitions, 202 flow [2021-03-24 19:43:57,521 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 42 places, 38 transitions, 200 flow, removed 1 selfloop flow, removed 1 redundant places. [2021-03-24 19:43:57,521 INFO L241 Difference]: Finished difference. Result has 45 places, 30 transitions, 150 flow [2021-03-24 19:43:57,522 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=136, PETRI_DIFFERENCE_MINUEND_FLOW=108, PETRI_DIFFERENCE_MINUEND_PLACES=35, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=29, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=20, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=150, PETRI_PLACES=45, PETRI_TRANSITIONS=30} [2021-03-24 19:43:57,522 INFO L343 CegarLoopForPetriNet]: 36 programPoint places, 9 predicate places. [2021-03-24 19:43:57,522 INFO L480 AbstractCegarLoop]: Abstraction has has 45 places, 30 transitions, 150 flow [2021-03-24 19:43:57,523 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 100.0) internal successors, (700), 7 states have internal predecessors, (700), 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) [2021-03-24 19:43:57,523 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 19:43:57,523 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-24 19:43:57,523 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-03-24 19:43:57,523 INFO L428 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-24 19:43:57,523 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 19:43:57,523 INFO L82 PathProgramCache]: Analyzing trace with hash -2015730491, now seen corresponding path program 1 times [2021-03-24 19:43:57,524 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 19:43:57,525 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1631670020] [2021-03-24 19:43:57,525 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 19:43:57,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 19:43:57,593 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 19:43:57,594 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 19:43:57,594 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 19:43:57,595 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 19:43:57,598 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 19:43:57,598 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-24 19:43:57,604 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 19:43:57,605 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 19:43:57,609 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 19:43:57,610 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-24 19:43:57,617 INFO L142 QuantifierPusher]: treesize reduction 9, result has 30.8 percent of original size [2021-03-24 19:43:57,617 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-24 19:43:57,624 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 19:43:57,624 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1631670020] [2021-03-24 19:43:57,624 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 19:43:57,625 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-03-24 19:43:57,625 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1951185073] [2021-03-24 19:43:57,625 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-24 19:43:57,625 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 19:43:57,625 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-24 19:43:57,626 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2021-03-24 19:43:57,626 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 102 out of 136 [2021-03-24 19:43:57,627 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 45 places, 30 transitions, 150 flow. Second operand has 7 states, 7 states have (on average 102.85714285714286) internal successors, (720), 7 states have internal predecessors, (720), 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) [2021-03-24 19:43:57,627 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 19:43:57,628 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 102 of 136 [2021-03-24 19:43:57,628 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 19:43:57,774 INFO L129 PetriNetUnfolder]: 36/107 cut-off events. [2021-03-24 19:43:57,774 INFO L130 PetriNetUnfolder]: For 261/265 co-relation queries the response was YES. [2021-03-24 19:43:57,774 INFO L84 FinitePrefix]: Finished finitePrefix Result has 376 conditions, 107 events. 36/107 cut-off events. For 261/265 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 385 event pairs, 12 based on Foata normal form. 9/115 useless extension candidates. Maximal degree in co-relation 347. Up to 54 conditions per place. [2021-03-24 19:43:57,776 INFO L132 encePairwiseOnDemand]: 128/136 looper letters, 15 selfloop transitions, 8 changer transitions 6/43 dead transitions. [2021-03-24 19:43:57,776 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 50 places, 43 transitions, 278 flow [2021-03-24 19:43:57,776 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-24 19:43:57,777 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-03-24 19:43:57,778 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 842 transitions. [2021-03-24 19:43:57,779 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7738970588235294 [2021-03-24 19:43:57,779 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 842 transitions. [2021-03-24 19:43:57,779 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 842 transitions. [2021-03-24 19:43:57,779 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 19:43:57,779 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 842 transitions. [2021-03-24 19:43:57,782 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 105.25) internal successors, (842), 8 states have internal predecessors, (842), 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) [2021-03-24 19:43:57,784 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 136.0) internal successors, (1224), 9 states have internal predecessors, (1224), 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) [2021-03-24 19:43:57,785 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 136.0) internal successors, (1224), 9 states have internal predecessors, (1224), 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) [2021-03-24 19:43:57,785 INFO L185 Difference]: Start difference. First operand has 45 places, 30 transitions, 150 flow. Second operand 8 states and 842 transitions. [2021-03-24 19:43:57,785 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 50 places, 43 transitions, 278 flow [2021-03-24 19:43:57,790 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 45 places, 43 transitions, 259 flow, removed 3 selfloop flow, removed 5 redundant places. [2021-03-24 19:43:57,791 INFO L241 Difference]: Finished difference. Result has 49 places, 33 transitions, 179 flow [2021-03-24 19:43:57,791 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=136, PETRI_DIFFERENCE_MINUEND_FLOW=133, PETRI_DIFFERENCE_MINUEND_PLACES=38, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=30, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=23, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=179, PETRI_PLACES=49, PETRI_TRANSITIONS=33} [2021-03-24 19:43:57,791 INFO L343 CegarLoopForPetriNet]: 36 programPoint places, 13 predicate places. [2021-03-24 19:43:57,791 INFO L480 AbstractCegarLoop]: Abstraction has has 49 places, 33 transitions, 179 flow [2021-03-24 19:43:57,792 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 102.85714285714286) internal successors, (720), 7 states have internal predecessors, (720), 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) [2021-03-24 19:43:57,792 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 19:43:57,792 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-24 19:43:57,792 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-03-24 19:43:57,792 INFO L428 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-24 19:43:57,793 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 19:43:57,795 INFO L82 PathProgramCache]: Analyzing trace with hash -361253129, now seen corresponding path program 2 times [2021-03-24 19:43:57,799 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 19:43:57,799 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1351623597] [2021-03-24 19:43:57,799 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 19:43:57,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 19:43:57,906 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 19:43:57,906 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 19:43:57,907 INFO L142 QuantifierPusher]: treesize reduction 5, result has 37.5 percent of original size [2021-03-24 19:43:57,908 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 19:43:57,911 INFO L142 QuantifierPusher]: treesize reduction 4, result has 63.6 percent of original size [2021-03-24 19:43:57,911 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-24 19:43:57,918 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 19:43:57,919 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-24 19:43:57,929 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 19:43:57,930 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 19:43:57,943 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 19:43:57,943 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-24 19:43:57,955 INFO L142 QuantifierPusher]: treesize reduction 4, result has 76.5 percent of original size [2021-03-24 19:43:57,955 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-24 19:43:57,965 INFO L142 QuantifierPusher]: treesize reduction 9, result has 30.8 percent of original size [2021-03-24 19:43:57,966 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-24 19:43:57,975 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 19:43:57,976 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1351623597] [2021-03-24 19:43:57,976 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 19:43:57,976 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-03-24 19:43:57,976 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1087584941] [2021-03-24 19:43:57,976 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-03-24 19:43:57,977 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 19:43:57,977 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-03-24 19:43:57,978 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2021-03-24 19:43:57,979 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 91 out of 136 [2021-03-24 19:43:57,980 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 49 places, 33 transitions, 179 flow. Second operand has 9 states, 9 states have (on average 92.0) internal successors, (828), 9 states have internal predecessors, (828), 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) [2021-03-24 19:43:57,980 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 19:43:57,980 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 91 of 136 [2021-03-24 19:43:57,980 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 19:43:58,287 INFO L129 PetriNetUnfolder]: 97/201 cut-off events. [2021-03-24 19:43:58,288 INFO L130 PetriNetUnfolder]: For 848/850 co-relation queries the response was YES. [2021-03-24 19:43:58,289 INFO L84 FinitePrefix]: Finished finitePrefix Result has 796 conditions, 201 events. 97/201 cut-off events. For 848/850 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 765 event pairs, 11 based on Foata normal form. 14/215 useless extension candidates. Maximal degree in co-relation 763. Up to 78 conditions per place. [2021-03-24 19:43:58,290 INFO L132 encePairwiseOnDemand]: 125/136 looper letters, 30 selfloop transitions, 13 changer transitions 14/66 dead transitions. [2021-03-24 19:43:58,290 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 57 places, 66 transitions, 479 flow [2021-03-24 19:43:58,291 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-24 19:43:58,291 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2021-03-24 19:43:58,293 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 1148 transitions. [2021-03-24 19:43:58,294 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7034313725490197 [2021-03-24 19:43:58,294 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 1148 transitions. [2021-03-24 19:43:58,294 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 1148 transitions. [2021-03-24 19:43:58,295 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 19:43:58,295 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 1148 transitions. [2021-03-24 19:43:58,298 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 95.66666666666667) internal successors, (1148), 12 states have internal predecessors, (1148), 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) [2021-03-24 19:43:58,300 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 136.0) internal successors, (1768), 13 states have internal predecessors, (1768), 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) [2021-03-24 19:43:58,301 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 136.0) internal successors, (1768), 13 states have internal predecessors, (1768), 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) [2021-03-24 19:43:58,301 INFO L185 Difference]: Start difference. First operand has 49 places, 33 transitions, 179 flow. Second operand 12 states and 1148 transitions. [2021-03-24 19:43:58,301 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 57 places, 66 transitions, 479 flow [2021-03-24 19:43:58,304 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 52 places, 66 transitions, 436 flow, removed 17 selfloop flow, removed 5 redundant places. [2021-03-24 19:43:58,305 INFO L241 Difference]: Finished difference. Result has 59 places, 37 transitions, 225 flow [2021-03-24 19:43:58,305 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=136, PETRI_DIFFERENCE_MINUEND_FLOW=157, PETRI_DIFFERENCE_MINUEND_PLACES=41, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=33, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=22, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=225, PETRI_PLACES=59, PETRI_TRANSITIONS=37} [2021-03-24 19:43:58,305 INFO L343 CegarLoopForPetriNet]: 36 programPoint places, 23 predicate places. [2021-03-24 19:43:58,306 INFO L480 AbstractCegarLoop]: Abstraction has has 59 places, 37 transitions, 225 flow [2021-03-24 19:43:58,306 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 92.0) internal successors, (828), 9 states have internal predecessors, (828), 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) [2021-03-24 19:43:58,306 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 19:43:58,306 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-24 19:43:58,306 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-03-24 19:43:58,306 INFO L428 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-24 19:43:58,307 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 19:43:58,307 INFO L82 PathProgramCache]: Analyzing trace with hash -974980102, now seen corresponding path program 1 times [2021-03-24 19:43:58,307 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 19:43:58,307 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [859997263] [2021-03-24 19:43:58,307 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 19:43:58,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 19:43:58,354 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 19:43:58,355 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 19:43:58,355 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 19:43:58,356 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 19:43:58,359 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 19:43:58,360 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-24 19:43:58,366 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 19:43:58,366 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-24 19:43:58,367 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 19:43:58,368 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-24 19:43:58,376 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 19:43:58,377 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-24 19:43:58,388 INFO L142 QuantifierPusher]: treesize reduction 9, result has 30.8 percent of original size [2021-03-24 19:43:58,389 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-24 19:43:58,394 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 19:43:58,394 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [859997263] [2021-03-24 19:43:58,394 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 19:43:58,394 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-03-24 19:43:58,394 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1929827581] [2021-03-24 19:43:58,395 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-24 19:43:58,395 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 19:43:58,395 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-24 19:43:58,395 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2021-03-24 19:43:58,396 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 100 out of 136 [2021-03-24 19:43:58,397 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 59 places, 37 transitions, 225 flow. Second operand has 7 states, 7 states have (on average 101.14285714285714) internal successors, (708), 7 states have internal predecessors, (708), 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) [2021-03-24 19:43:58,397 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 19:43:58,397 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 100 of 136 [2021-03-24 19:43:58,397 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 19:43:58,491 INFO L129 PetriNetUnfolder]: 37/106 cut-off events. [2021-03-24 19:43:58,491 INFO L130 PetriNetUnfolder]: For 439/454 co-relation queries the response was YES. [2021-03-24 19:43:58,492 INFO L84 FinitePrefix]: Finished finitePrefix Result has 468 conditions, 106 events. 37/106 cut-off events. For 439/454 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 368 event pairs, 4 based on Foata normal form. 12/117 useless extension candidates. Maximal degree in co-relation 429. Up to 55 conditions per place. [2021-03-24 19:43:58,493 INFO L132 encePairwiseOnDemand]: 127/136 looper letters, 14 selfloop transitions, 12 changer transitions 3/45 dead transitions. [2021-03-24 19:43:58,493 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 61 places, 45 transitions, 343 flow [2021-03-24 19:43:58,493 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-24 19:43:58,493 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-24 19:43:58,495 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 723 transitions. [2021-03-24 19:43:58,495 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.759453781512605 [2021-03-24 19:43:58,495 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 723 transitions. [2021-03-24 19:43:58,495 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 723 transitions. [2021-03-24 19:43:58,496 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 19:43:58,496 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 723 transitions. [2021-03-24 19:43:58,498 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 103.28571428571429) internal successors, (723), 7 states have internal predecessors, (723), 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) [2021-03-24 19:43:58,499 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 136.0) internal successors, (1088), 8 states have internal predecessors, (1088), 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) [2021-03-24 19:43:58,500 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 136.0) internal successors, (1088), 8 states have internal predecessors, (1088), 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) [2021-03-24 19:43:58,500 INFO L185 Difference]: Start difference. First operand has 59 places, 37 transitions, 225 flow. Second operand 7 states and 723 transitions. [2021-03-24 19:43:58,500 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 61 places, 45 transitions, 343 flow [2021-03-24 19:43:58,502 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 53 places, 45 transitions, 315 flow, removed 6 selfloop flow, removed 8 redundant places. [2021-03-24 19:43:58,503 INFO L241 Difference]: Finished difference. Result has 55 places, 40 transitions, 255 flow [2021-03-24 19:43:58,503 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=136, PETRI_DIFFERENCE_MINUEND_FLOW=197, PETRI_DIFFERENCE_MINUEND_PLACES=47, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=37, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=25, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=255, PETRI_PLACES=55, PETRI_TRANSITIONS=40} [2021-03-24 19:43:58,503 INFO L343 CegarLoopForPetriNet]: 36 programPoint places, 19 predicate places. [2021-03-24 19:43:58,503 INFO L480 AbstractCegarLoop]: Abstraction has has 55 places, 40 transitions, 255 flow [2021-03-24 19:43:58,504 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 101.14285714285714) internal successors, (708), 7 states have internal predecessors, (708), 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) [2021-03-24 19:43:58,504 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 19:43:58,504 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-24 19:43:58,504 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-03-24 19:43:58,504 INFO L428 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-24 19:43:58,504 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 19:43:58,504 INFO L82 PathProgramCache]: Analyzing trace with hash 1756919870, now seen corresponding path program 2 times [2021-03-24 19:43:58,505 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 19:43:58,505 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1812852652] [2021-03-24 19:43:58,505 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 19:43:58,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 19:43:58,555 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 19:43:58,556 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 19:43:58,556 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 19:43:58,557 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 19:43:58,560 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 19:43:58,561 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-24 19:43:58,567 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 19:43:58,568 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-24 19:43:58,578 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 19:43:58,579 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-24 19:43:58,593 INFO L142 QuantifierPusher]: treesize reduction 10, result has 83.6 percent of original size [2021-03-24 19:43:58,596 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-24 19:43:58,622 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 19:43:58,623 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-24 19:43:58,636 INFO L142 QuantifierPusher]: treesize reduction 9, result has 30.8 percent of original size [2021-03-24 19:43:58,637 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-24 19:43:58,643 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 19:43:58,644 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1812852652] [2021-03-24 19:43:58,644 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 19:43:58,644 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-03-24 19:43:58,644 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1064786238] [2021-03-24 19:43:58,644 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-03-24 19:43:58,645 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 19:43:58,645 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-03-24 19:43:58,645 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2021-03-24 19:43:58,646 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 98 out of 136 [2021-03-24 19:43:58,647 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 55 places, 40 transitions, 255 flow. Second operand has 9 states, 9 states have (on average 98.88888888888889) internal successors, (890), 9 states have internal predecessors, (890), 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) [2021-03-24 19:43:58,647 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 19:43:58,647 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 98 of 136 [2021-03-24 19:43:58,647 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 19:43:58,767 INFO L129 PetriNetUnfolder]: 38/109 cut-off events. [2021-03-24 19:43:58,767 INFO L130 PetriNetUnfolder]: For 342/357 co-relation queries the response was YES. [2021-03-24 19:43:58,767 INFO L84 FinitePrefix]: Finished finitePrefix Result has 511 conditions, 109 events. 38/109 cut-off events. For 342/357 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 385 event pairs, 3 based on Foata normal form. 12/120 useless extension candidates. Maximal degree in co-relation 474. Up to 56 conditions per place. [2021-03-24 19:43:58,768 INFO L132 encePairwiseOnDemand]: 126/136 looper letters, 14 selfloop transitions, 14 changer transitions 5/49 dead transitions. [2021-03-24 19:43:58,768 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 62 places, 49 transitions, 407 flow [2021-03-24 19:43:58,769 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-03-24 19:43:58,769 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-03-24 19:43:58,771 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 908 transitions. [2021-03-24 19:43:58,771 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7418300653594772 [2021-03-24 19:43:58,771 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 908 transitions. [2021-03-24 19:43:58,771 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 908 transitions. [2021-03-24 19:43:58,772 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 19:43:58,772 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 908 transitions. [2021-03-24 19:43:58,774 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 100.88888888888889) internal successors, (908), 9 states have internal predecessors, (908), 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) [2021-03-24 19:43:58,776 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 136.0) internal successors, (1360), 10 states have internal predecessors, (1360), 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) [2021-03-24 19:43:58,777 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 136.0) internal successors, (1360), 10 states have internal predecessors, (1360), 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) [2021-03-24 19:43:58,777 INFO L185 Difference]: Start difference. First operand has 55 places, 40 transitions, 255 flow. Second operand 9 states and 908 transitions. [2021-03-24 19:43:58,777 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 62 places, 49 transitions, 407 flow [2021-03-24 19:43:58,779 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 57 places, 49 transitions, 371 flow, removed 8 selfloop flow, removed 5 redundant places. [2021-03-24 19:43:58,780 INFO L241 Difference]: Finished difference. Result has 60 places, 42 transitions, 284 flow [2021-03-24 19:43:58,780 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=136, PETRI_DIFFERENCE_MINUEND_FLOW=219, PETRI_DIFFERENCE_MINUEND_PLACES=49, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=40, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=26, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=284, PETRI_PLACES=60, PETRI_TRANSITIONS=42} [2021-03-24 19:43:58,780 INFO L343 CegarLoopForPetriNet]: 36 programPoint places, 24 predicate places. [2021-03-24 19:43:58,780 INFO L480 AbstractCegarLoop]: Abstraction has has 60 places, 42 transitions, 284 flow [2021-03-24 19:43:58,781 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 98.88888888888889) internal successors, (890), 9 states have internal predecessors, (890), 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) [2021-03-24 19:43:58,781 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 19:43:58,781 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-24 19:43:58,781 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-03-24 19:43:58,781 INFO L428 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-24 19:43:58,781 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 19:43:58,782 INFO L82 PathProgramCache]: Analyzing trace with hash 1757237000, now seen corresponding path program 3 times [2021-03-24 19:43:58,782 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 19:43:58,782 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1622734838] [2021-03-24 19:43:58,782 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 19:43:58,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 19:43:58,867 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 19:43:58,868 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 19:43:58,868 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 19:43:58,869 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 19:43:58,872 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 19:43:58,873 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-24 19:43:58,882 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 19:43:58,883 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-24 19:43:58,891 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 19:43:58,892 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-24 19:43:58,900 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 19:43:58,900 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-24 19:43:58,912 INFO L142 QuantifierPusher]: treesize reduction 9, result has 30.8 percent of original size [2021-03-24 19:43:58,912 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-24 19:43:58,918 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 19:43:58,918 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1622734838] [2021-03-24 19:43:58,919 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 19:43:58,919 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-24 19:43:58,919 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1542013801] [2021-03-24 19:43:58,920 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-24 19:43:58,920 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 19:43:58,920 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-24 19:43:58,920 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2021-03-24 19:43:58,921 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 98 out of 136 [2021-03-24 19:43:58,922 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 60 places, 42 transitions, 284 flow. Second operand has 8 states, 8 states have (on average 98.875) internal successors, (791), 8 states have internal predecessors, (791), 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) [2021-03-24 19:43:58,922 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 19:43:58,922 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 98 of 136 [2021-03-24 19:43:58,922 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 19:43:59,061 INFO L129 PetriNetUnfolder]: 46/130 cut-off events. [2021-03-24 19:43:59,061 INFO L130 PetriNetUnfolder]: For 716/731 co-relation queries the response was YES. [2021-03-24 19:43:59,062 INFO L84 FinitePrefix]: Finished finitePrefix Result has 700 conditions, 130 events. 46/130 cut-off events. For 716/731 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 519 event pairs, 0 based on Foata normal form. 12/142 useless extension candidates. Maximal degree in co-relation 661. Up to 58 conditions per place. [2021-03-24 19:43:59,063 INFO L132 encePairwiseOnDemand]: 127/136 looper letters, 16 selfloop transitions, 20 changer transitions 5/58 dead transitions. [2021-03-24 19:43:59,063 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 66 places, 58 transitions, 562 flow [2021-03-24 19:43:59,064 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-03-24 19:43:59,064 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-03-24 19:43:59,065 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 911 transitions. [2021-03-24 19:43:59,066 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.744281045751634 [2021-03-24 19:43:59,066 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 911 transitions. [2021-03-24 19:43:59,066 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 911 transitions. [2021-03-24 19:43:59,067 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 19:43:59,067 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 911 transitions. [2021-03-24 19:43:59,069 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 101.22222222222223) internal successors, (911), 9 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) [2021-03-24 19:43:59,071 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 136.0) internal successors, (1360), 10 states have internal predecessors, (1360), 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) [2021-03-24 19:43:59,071 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 136.0) internal successors, (1360), 10 states have internal predecessors, (1360), 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) [2021-03-24 19:43:59,071 INFO L185 Difference]: Start difference. First operand has 60 places, 42 transitions, 284 flow. Second operand 9 states and 911 transitions. [2021-03-24 19:43:59,071 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 66 places, 58 transitions, 562 flow [2021-03-24 19:43:59,075 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 60 places, 58 transitions, 525 flow, removed 7 selfloop flow, removed 6 redundant places. [2021-03-24 19:43:59,079 INFO L241 Difference]: Finished difference. Result has 64 places, 48 transitions, 401 flow [2021-03-24 19:43:59,079 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=136, PETRI_DIFFERENCE_MINUEND_FLOW=249, PETRI_DIFFERENCE_MINUEND_PLACES=52, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=42, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=15, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=24, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=401, PETRI_PLACES=64, PETRI_TRANSITIONS=48} [2021-03-24 19:43:59,079 INFO L343 CegarLoopForPetriNet]: 36 programPoint places, 28 predicate places. [2021-03-24 19:43:59,079 INFO L480 AbstractCegarLoop]: Abstraction has has 64 places, 48 transitions, 401 flow [2021-03-24 19:43:59,080 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 98.875) internal successors, (791), 8 states have internal predecessors, (791), 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) [2021-03-24 19:43:59,080 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 19:43:59,080 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-24 19:43:59,080 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-03-24 19:43:59,080 INFO L428 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-24 19:43:59,080 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 19:43:59,080 INFO L82 PathProgramCache]: Analyzing trace with hash 1932523400, now seen corresponding path program 4 times [2021-03-24 19:43:59,080 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 19:43:59,081 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1574440180] [2021-03-24 19:43:59,081 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 19:43:59,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 19:43:59,129 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 19:43:59,130 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 19:43:59,130 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 19:43:59,131 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 19:43:59,135 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 19:43:59,136 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-24 19:43:59,141 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 19:43:59,142 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-24 19:43:59,142 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 19:43:59,143 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-24 19:43:59,150 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 19:43:59,150 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-24 19:43:59,160 INFO L142 QuantifierPusher]: treesize reduction 9, result has 30.8 percent of original size [2021-03-24 19:43:59,160 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-24 19:43:59,165 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 19:43:59,165 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1574440180] [2021-03-24 19:43:59,165 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 19:43:59,165 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-03-24 19:43:59,166 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [70035191] [2021-03-24 19:43:59,166 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-24 19:43:59,166 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 19:43:59,167 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-24 19:43:59,167 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2021-03-24 19:43:59,169 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 100 out of 136 [2021-03-24 19:43:59,169 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 64 places, 48 transitions, 401 flow. Second operand has 7 states, 7 states have (on average 101.14285714285714) internal successors, (708), 7 states have internal predecessors, (708), 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) [2021-03-24 19:43:59,170 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 19:43:59,170 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 100 of 136 [2021-03-24 19:43:59,170 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 19:43:59,282 INFO L129 PetriNetUnfolder]: 44/127 cut-off events. [2021-03-24 19:43:59,282 INFO L130 PetriNetUnfolder]: For 936/951 co-relation queries the response was YES. [2021-03-24 19:43:59,283 INFO L84 FinitePrefix]: Finished finitePrefix Result has 776 conditions, 127 events. 44/127 cut-off events. For 936/951 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 504 event pairs, 4 based on Foata normal form. 12/138 useless extension candidates. Maximal degree in co-relation 734. Up to 61 conditions per place. [2021-03-24 19:43:59,284 INFO L132 encePairwiseOnDemand]: 126/136 looper letters, 15 selfloop transitions, 19 changer transitions 3/53 dead transitions. [2021-03-24 19:43:59,284 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 70 places, 53 transitions, 551 flow [2021-03-24 19:43:59,285 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-03-24 19:43:59,285 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-03-24 19:43:59,286 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 924 transitions. [2021-03-24 19:43:59,287 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7549019607843137 [2021-03-24 19:43:59,287 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 924 transitions. [2021-03-24 19:43:59,287 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 924 transitions. [2021-03-24 19:43:59,287 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 19:43:59,288 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 924 transitions. [2021-03-24 19:43:59,289 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 102.66666666666667) internal successors, (924), 9 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) [2021-03-24 19:43:59,291 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 136.0) internal successors, (1360), 10 states have internal predecessors, (1360), 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) [2021-03-24 19:43:59,292 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 136.0) internal successors, (1360), 10 states have internal predecessors, (1360), 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) [2021-03-24 19:43:59,292 INFO L185 Difference]: Start difference. First operand has 64 places, 48 transitions, 401 flow. Second operand 9 states and 924 transitions. [2021-03-24 19:43:59,292 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 70 places, 53 transitions, 551 flow [2021-03-24 19:43:59,296 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 64 places, 53 transitions, 471 flow, removed 36 selfloop flow, removed 6 redundant places. [2021-03-24 19:43:59,298 INFO L241 Difference]: Finished difference. Result has 65 places, 47 transitions, 370 flow [2021-03-24 19:43:59,298 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=136, PETRI_DIFFERENCE_MINUEND_FLOW=335, PETRI_DIFFERENCE_MINUEND_PLACES=56, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=48, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=19, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=29, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=370, PETRI_PLACES=65, PETRI_TRANSITIONS=47} [2021-03-24 19:43:59,298 INFO L343 CegarLoopForPetriNet]: 36 programPoint places, 29 predicate places. [2021-03-24 19:43:59,298 INFO L480 AbstractCegarLoop]: Abstraction has has 65 places, 47 transitions, 370 flow [2021-03-24 19:43:59,298 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 101.14285714285714) internal successors, (708), 7 states have internal predecessors, (708), 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) [2021-03-24 19:43:59,299 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 19:43:59,299 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-24 19:43:59,299 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-03-24 19:43:59,299 INFO L428 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-24 19:43:59,299 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 19:43:59,299 INFO L82 PathProgramCache]: Analyzing trace with hash 1621966640, now seen corresponding path program 5 times [2021-03-24 19:43:59,299 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 19:43:59,300 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1418024731] [2021-03-24 19:43:59,300 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 19:43:59,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 19:43:59,356 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 19:43:59,356 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 19:43:59,357 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 19:43:59,357 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 19:43:59,361 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 19:43:59,361 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-24 19:43:59,368 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 19:43:59,369 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-24 19:43:59,378 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 19:43:59,378 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-24 19:43:59,390 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 19:43:59,391 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-24 19:43:59,404 INFO L142 QuantifierPusher]: treesize reduction 9, result has 30.8 percent of original size [2021-03-24 19:43:59,404 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-24 19:43:59,409 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 19:43:59,409 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1418024731] [2021-03-24 19:43:59,411 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 19:43:59,411 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-24 19:43:59,411 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1183377317] [2021-03-24 19:43:59,411 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-24 19:43:59,411 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 19:43:59,412 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-24 19:43:59,412 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2021-03-24 19:43:59,413 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 100 out of 136 [2021-03-24 19:43:59,414 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 65 places, 47 transitions, 370 flow. Second operand has 8 states, 8 states have (on average 101.0) internal successors, (808), 8 states have internal predecessors, (808), 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) [2021-03-24 19:43:59,414 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 19:43:59,414 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 100 of 136 [2021-03-24 19:43:59,414 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 19:43:59,597 INFO L129 PetriNetUnfolder]: 40/123 cut-off events. [2021-03-24 19:43:59,598 INFO L130 PetriNetUnfolder]: For 678/693 co-relation queries the response was YES. [2021-03-24 19:43:59,598 INFO L84 FinitePrefix]: Finished finitePrefix Result has 693 conditions, 123 events. 40/123 cut-off events. For 678/693 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 494 event pairs, 2 based on Foata normal form. 15/138 useless extension candidates. Maximal degree in co-relation 651. Up to 47 conditions per place. [2021-03-24 19:43:59,599 INFO L132 encePairwiseOnDemand]: 126/136 looper letters, 13 selfloop transitions, 25 changer transitions 5/59 dead transitions. [2021-03-24 19:43:59,599 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 75 places, 59 transitions, 622 flow [2021-03-24 19:43:59,600 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-24 19:43:59,600 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2021-03-24 19:43:59,602 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 1232 transitions. [2021-03-24 19:43:59,602 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7549019607843137 [2021-03-24 19:43:59,602 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 1232 transitions. [2021-03-24 19:43:59,603 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 1232 transitions. [2021-03-24 19:43:59,603 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 19:43:59,603 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 1232 transitions. [2021-03-24 19:43:59,605 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 102.66666666666667) internal successors, (1232), 12 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) [2021-03-24 19:43:59,608 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 136.0) internal successors, (1768), 13 states have internal predecessors, (1768), 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) [2021-03-24 19:43:59,608 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 136.0) internal successors, (1768), 13 states have internal predecessors, (1768), 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) [2021-03-24 19:43:59,608 INFO L185 Difference]: Start difference. First operand has 65 places, 47 transitions, 370 flow. Second operand 12 states and 1232 transitions. [2021-03-24 19:43:59,608 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 75 places, 59 transitions, 622 flow [2021-03-24 19:43:59,612 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 68 places, 59 transitions, 592 flow, removed 2 selfloop flow, removed 7 redundant places. [2021-03-24 19:43:59,613 INFO L241 Difference]: Finished difference. Result has 71 places, 49 transitions, 446 flow [2021-03-24 19:43:59,613 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=136, PETRI_DIFFERENCE_MINUEND_FLOW=342, PETRI_DIFFERENCE_MINUEND_PLACES=57, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=47, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=23, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=22, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=446, PETRI_PLACES=71, PETRI_TRANSITIONS=49} [2021-03-24 19:43:59,613 INFO L343 CegarLoopForPetriNet]: 36 programPoint places, 35 predicate places. [2021-03-24 19:43:59,613 INFO L480 AbstractCegarLoop]: Abstraction has has 71 places, 49 transitions, 446 flow [2021-03-24 19:43:59,614 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 101.0) internal successors, (808), 8 states have internal predecessors, (808), 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) [2021-03-24 19:43:59,614 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 19:43:59,614 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-24 19:43:59,614 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-03-24 19:43:59,614 INFO L428 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-24 19:43:59,614 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 19:43:59,614 INFO L82 PathProgramCache]: Analyzing trace with hash 1931548946, now seen corresponding path program 1 times [2021-03-24 19:43:59,614 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 19:43:59,615 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [189446373] [2021-03-24 19:43:59,615 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 19:43:59,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 19:43:59,650 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 19:43:59,651 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 19:43:59,651 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 19:43:59,652 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 19:43:59,655 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 19:43:59,655 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-24 19:43:59,662 INFO L142 QuantifierPusher]: treesize reduction 11, result has 45.0 percent of original size [2021-03-24 19:43:59,663 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-24 19:43:59,671 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 19:43:59,671 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 19:43:59,672 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 19:43:59,672 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [189446373] [2021-03-24 19:43:59,672 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 19:43:59,672 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-03-24 19:43:59,672 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [405272673] [2021-03-24 19:43:59,672 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-03-24 19:43:59,672 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 19:43:59,673 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-03-24 19:43:59,673 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-03-24 19:43:59,673 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 110 out of 136 [2021-03-24 19:43:59,674 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 71 places, 49 transitions, 446 flow. Second operand has 5 states, 5 states have (on average 110.8) internal successors, (554), 5 states have internal predecessors, (554), 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) [2021-03-24 19:43:59,674 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 19:43:59,674 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 110 of 136 [2021-03-24 19:43:59,674 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 19:43:59,744 INFO L129 PetriNetUnfolder]: 36/121 cut-off events. [2021-03-24 19:43:59,744 INFO L130 PetriNetUnfolder]: For 777/809 co-relation queries the response was YES. [2021-03-24 19:43:59,744 INFO L84 FinitePrefix]: Finished finitePrefix Result has 598 conditions, 121 events. 36/121 cut-off events. For 777/809 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 497 event pairs, 7 based on Foata normal form. 41/161 useless extension candidates. Maximal degree in co-relation 556. Up to 39 conditions per place. [2021-03-24 19:43:59,745 INFO L132 encePairwiseOnDemand]: 130/136 looper letters, 6 selfloop transitions, 13 changer transitions 4/53 dead transitions. [2021-03-24 19:43:59,745 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 75 places, 53 transitions, 454 flow [2021-03-24 19:43:59,746 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-24 19:43:59,746 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-24 19:43:59,747 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 791 transitions. [2021-03-24 19:43:59,748 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8308823529411765 [2021-03-24 19:43:59,748 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 791 transitions. [2021-03-24 19:43:59,748 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 791 transitions. [2021-03-24 19:43:59,748 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 19:43:59,749 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 791 transitions. [2021-03-24 19:43:59,750 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 113.0) internal successors, (791), 7 states have internal predecessors, (791), 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) [2021-03-24 19:43:59,751 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 136.0) internal successors, (1088), 8 states have internal predecessors, (1088), 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) [2021-03-24 19:43:59,752 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 136.0) internal successors, (1088), 8 states have internal predecessors, (1088), 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) [2021-03-24 19:43:59,752 INFO L185 Difference]: Start difference. First operand has 71 places, 49 transitions, 446 flow. Second operand 7 states and 791 transitions. [2021-03-24 19:43:59,752 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 75 places, 53 transitions, 454 flow [2021-03-24 19:43:59,755 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 60 places, 53 transitions, 379 flow, removed 12 selfloop flow, removed 15 redundant places. [2021-03-24 19:43:59,756 INFO L241 Difference]: Finished difference. Result has 63 places, 49 transitions, 364 flow [2021-03-24 19:43:59,756 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=136, PETRI_DIFFERENCE_MINUEND_FLOW=277, PETRI_DIFFERENCE_MINUEND_PLACES=54, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=40, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=34, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=364, PETRI_PLACES=63, PETRI_TRANSITIONS=49} [2021-03-24 19:43:59,756 INFO L343 CegarLoopForPetriNet]: 36 programPoint places, 27 predicate places. [2021-03-24 19:43:59,756 INFO L480 AbstractCegarLoop]: Abstraction has has 63 places, 49 transitions, 364 flow [2021-03-24 19:43:59,756 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 110.8) internal successors, (554), 5 states have internal predecessors, (554), 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) [2021-03-24 19:43:59,756 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 19:43:59,756 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-24 19:43:59,757 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-03-24 19:43:59,757 INFO L428 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-24 19:43:59,757 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 19:43:59,757 INFO L82 PathProgramCache]: Analyzing trace with hash 1007259772, now seen corresponding path program 1 times [2021-03-24 19:43:59,757 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 19:43:59,757 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [85077252] [2021-03-24 19:43:59,757 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 19:43:59,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 19:43:59,814 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 19:43:59,814 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 19:43:59,816 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 19:43:59,818 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 19:43:59,821 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 19:43:59,822 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 19:43:59,830 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 19:43:59,830 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-24 19:43:59,837 INFO L142 QuantifierPusher]: treesize reduction 11, result has 45.0 percent of original size [2021-03-24 19:43:59,838 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-24 19:43:59,845 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 19:43:59,846 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 19:43:59,846 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 19:43:59,846 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [85077252] [2021-03-24 19:43:59,846 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 19:43:59,846 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-03-24 19:43:59,846 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1771017074] [2021-03-24 19:43:59,847 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-03-24 19:43:59,847 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 19:43:59,847 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-03-24 19:43:59,847 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-03-24 19:43:59,848 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 110 out of 136 [2021-03-24 19:43:59,848 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 63 places, 49 transitions, 364 flow. Second operand has 6 states, 6 states have (on average 110.83333333333333) internal successors, (665), 6 states have internal predecessors, (665), 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) [2021-03-24 19:43:59,848 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 19:43:59,848 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 110 of 136 [2021-03-24 19:43:59,849 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 19:43:59,942 INFO L129 PetriNetUnfolder]: 20/89 cut-off events. [2021-03-24 19:43:59,942 INFO L130 PetriNetUnfolder]: For 532/593 co-relation queries the response was YES. [2021-03-24 19:43:59,943 INFO L84 FinitePrefix]: Finished finitePrefix Result has 375 conditions, 89 events. 20/89 cut-off events. For 532/593 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 348 event pairs, 0 based on Foata normal form. 67/156 useless extension candidates. Maximal degree in co-relation 338. Up to 24 conditions per place. [2021-03-24 19:43:59,944 INFO L132 encePairwiseOnDemand]: 130/136 looper letters, 3 selfloop transitions, 15 changer transitions 8/55 dead transitions. [2021-03-24 19:43:59,944 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 72 places, 55 transitions, 429 flow [2021-03-24 19:43:59,944 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-03-24 19:43:59,944 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-03-24 19:43:59,946 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 1123 transitions. [2021-03-24 19:43:59,947 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.825735294117647 [2021-03-24 19:43:59,947 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 1123 transitions. [2021-03-24 19:43:59,947 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 1123 transitions. [2021-03-24 19:43:59,947 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 19:43:59,947 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 1123 transitions. [2021-03-24 19:43:59,949 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 112.3) internal successors, (1123), 10 states have internal predecessors, (1123), 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) [2021-03-24 19:43:59,952 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 136.0) internal successors, (1496), 11 states have internal predecessors, (1496), 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) [2021-03-24 19:43:59,952 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 136.0) internal successors, (1496), 11 states have internal predecessors, (1496), 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) [2021-03-24 19:43:59,953 INFO L185 Difference]: Start difference. First operand has 63 places, 49 transitions, 364 flow. Second operand 10 states and 1123 transitions. [2021-03-24 19:43:59,953 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 72 places, 55 transitions, 429 flow [2021-03-24 19:43:59,955 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 68 places, 55 transitions, 375 flow, removed 22 selfloop flow, removed 4 redundant places. [2021-03-24 19:43:59,956 INFO L241 Difference]: Finished difference. Result has 73 places, 47 transitions, 339 flow [2021-03-24 19:43:59,956 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=136, PETRI_DIFFERENCE_MINUEND_FLOW=290, PETRI_DIFFERENCE_MINUEND_PLACES=59, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=47, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=32, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=339, PETRI_PLACES=73, PETRI_TRANSITIONS=47} [2021-03-24 19:43:59,956 INFO L343 CegarLoopForPetriNet]: 36 programPoint places, 37 predicate places. [2021-03-24 19:43:59,956 INFO L480 AbstractCegarLoop]: Abstraction has has 73 places, 47 transitions, 339 flow [2021-03-24 19:43:59,956 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 110.83333333333333) internal successors, (665), 6 states have internal predecessors, (665), 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) [2021-03-24 19:43:59,956 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 19:43:59,956 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-24 19:43:59,957 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-03-24 19:43:59,957 INFO L428 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-24 19:43:59,957 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 19:43:59,957 INFO L82 PathProgramCache]: Analyzing trace with hash 2122769341, now seen corresponding path program 1 times [2021-03-24 19:43:59,957 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 19:43:59,957 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1669959961] [2021-03-24 19:43:59,957 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 19:43:59,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 19:44:00,009 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 19:44:00,009 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 19:44:00,010 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 19:44:00,010 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 19:44:00,015 INFO L142 QuantifierPusher]: treesize reduction 12, result has 55.6 percent of original size [2021-03-24 19:44:00,016 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-24 19:44:00,026 INFO L142 QuantifierPusher]: treesize reduction 12, result has 55.6 percent of original size [2021-03-24 19:44:00,027 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-24 19:44:00,038 INFO L142 QuantifierPusher]: treesize reduction 8, result has 80.0 percent of original size [2021-03-24 19:44:00,039 INFO L147 QuantifierPusher]: treesize reduction 9, result has 71.9 percent of original size 23 [2021-03-24 19:44:00,050 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 19:44:00,050 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-24 19:44:00,051 INFO L142 QuantifierPusher]: treesize reduction 9, result has 30.8 percent of original size [2021-03-24 19:44:00,051 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-24 19:44:00,057 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 19:44:00,058 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1669959961] [2021-03-24 19:44:00,058 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 19:44:00,058 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-03-24 19:44:00,058 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [251755351] [2021-03-24 19:44:00,058 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-24 19:44:00,058 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 19:44:00,059 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-24 19:44:00,059 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-03-24 19:44:00,060 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 97 out of 136 [2021-03-24 19:44:00,061 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 73 places, 47 transitions, 339 flow. Second operand has 7 states, 7 states have (on average 98.71428571428571) internal successors, (691), 7 states have internal predecessors, (691), 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) [2021-03-24 19:44:00,061 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 19:44:00,061 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 97 of 136 [2021-03-24 19:44:00,061 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 19:44:00,182 INFO L129 PetriNetUnfolder]: 26/126 cut-off events. [2021-03-24 19:44:00,182 INFO L130 PetriNetUnfolder]: For 641/660 co-relation queries the response was YES. [2021-03-24 19:44:00,183 INFO L84 FinitePrefix]: Finished finitePrefix Result has 584 conditions, 126 events. 26/126 cut-off events. For 641/660 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 596 event pairs, 0 based on Foata normal form. 18/144 useless extension candidates. Maximal degree in co-relation 540. Up to 31 conditions per place. [2021-03-24 19:44:00,183 INFO L132 encePairwiseOnDemand]: 129/136 looper letters, 15 selfloop transitions, 1 changer transitions 26/63 dead transitions. [2021-03-24 19:44:00,183 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 77 places, 63 transitions, 530 flow [2021-03-24 19:44:00,184 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-24 19:44:00,184 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-24 19:44:00,186 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 703 transitions. [2021-03-24 19:44:00,186 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7384453781512605 [2021-03-24 19:44:00,186 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 703 transitions. [2021-03-24 19:44:00,187 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 703 transitions. [2021-03-24 19:44:00,187 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 19:44:00,187 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 703 transitions. [2021-03-24 19:44:00,189 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 100.42857142857143) internal successors, (703), 7 states have internal predecessors, (703), 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) [2021-03-24 19:44:00,191 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 136.0) internal successors, (1088), 8 states have internal predecessors, (1088), 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) [2021-03-24 19:44:00,191 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 136.0) internal successors, (1088), 8 states have internal predecessors, (1088), 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) [2021-03-24 19:44:00,191 INFO L185 Difference]: Start difference. First operand has 73 places, 47 transitions, 339 flow. Second operand 7 states and 703 transitions. [2021-03-24 19:44:00,191 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 77 places, 63 transitions, 530 flow [2021-03-24 19:44:00,194 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 67 places, 63 transitions, 471 flow, removed 13 selfloop flow, removed 10 redundant places. [2021-03-24 19:44:00,197 INFO L241 Difference]: Finished difference. Result has 72 places, 36 transitions, 235 flow [2021-03-24 19:44:00,197 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=136, PETRI_DIFFERENCE_MINUEND_FLOW=291, PETRI_DIFFERENCE_MINUEND_PLACES=61, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=47, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=46, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=235, PETRI_PLACES=72, PETRI_TRANSITIONS=36} [2021-03-24 19:44:00,197 INFO L343 CegarLoopForPetriNet]: 36 programPoint places, 36 predicate places. [2021-03-24 19:44:00,197 INFO L480 AbstractCegarLoop]: Abstraction has has 72 places, 36 transitions, 235 flow [2021-03-24 19:44:00,197 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 98.71428571428571) internal successors, (691), 7 states have internal predecessors, (691), 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) [2021-03-24 19:44:00,197 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 19:44:00,197 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-24 19:44:00,198 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-03-24 19:44:00,198 INFO L428 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-24 19:44:00,198 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 19:44:00,198 INFO L82 PathProgramCache]: Analyzing trace with hash -2064888763, now seen corresponding path program 2 times [2021-03-24 19:44:00,198 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 19:44:00,198 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1014481888] [2021-03-24 19:44:00,198 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 19:44:00,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-03-24 19:44:00,233 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-03-24 19:44:00,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-03-24 19:44:00,293 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-03-24 19:44:00,328 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-03-24 19:44:00,328 INFO L634 BasicCegarLoop]: Counterexample might be feasible [2021-03-24 19:44:00,329 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-03-24 19:44:00,410 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.03 07:44:00 BasicIcfg [2021-03-24 19:44:00,410 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-03-24 19:44:00,410 INFO L168 Benchmark]: Toolchain (without parser) took 15147.46 ms. Allocated memory was 255.9 MB in the beginning and 536.9 MB in the end (delta: 281.0 MB). Free memory was 234.8 MB in the beginning and 334.9 MB in the end (delta: -100.1 MB). Peak memory consumption was 180.3 MB. Max. memory is 16.0 GB. [2021-03-24 19:44:00,412 INFO L168 Benchmark]: CDTParser took 0.15 ms. Allocated memory is still 255.9 MB. Free memory is still 237.9 MB. There was no memory consumed. Max. memory is 16.0 GB. [2021-03-24 19:44:00,412 INFO L168 Benchmark]: CACSL2BoogieTranslator took 587.11 ms. Allocated memory was 255.9 MB in the beginning and 371.2 MB in the end (delta: 115.3 MB). Free memory was 234.8 MB in the beginning and 331.8 MB in the end (delta: -97.0 MB). Peak memory consumption was 16.8 MB. Max. memory is 16.0 GB. [2021-03-24 19:44:00,412 INFO L168 Benchmark]: Boogie Procedure Inliner took 48.40 ms. Allocated memory is still 371.2 MB. Free memory was 331.3 MB in the beginning and 328.6 MB in the end (delta: 2.7 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.0 GB. [2021-03-24 19:44:00,413 INFO L168 Benchmark]: Boogie Preprocessor took 42.99 ms. Allocated memory is still 371.2 MB. Free memory was 328.6 MB in the beginning and 327.0 MB in the end (delta: 1.6 MB). There was no memory consumed. Max. memory is 16.0 GB. [2021-03-24 19:44:00,413 INFO L168 Benchmark]: RCFGBuilder took 1767.74 ms. Allocated memory is still 371.2 MB. Free memory was 326.5 MB in the beginning and 266.2 MB in the end (delta: 60.3 MB). Peak memory consumption was 61.8 MB. Max. memory is 16.0 GB. [2021-03-24 19:44:00,413 INFO L168 Benchmark]: TraceAbstraction took 12694.41 ms. Allocated memory was 371.2 MB in the beginning and 536.9 MB in the end (delta: 165.7 MB). Free memory was 266.2 MB in the beginning and 334.9 MB in the end (delta: -68.7 MB). Peak memory consumption was 97.0 MB. Max. memory is 16.0 GB. [2021-03-24 19:44:00,417 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15 ms. Allocated memory is still 255.9 MB. Free memory is still 237.9 MB. There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 587.11 ms. Allocated memory was 255.9 MB in the beginning and 371.2 MB in the end (delta: 115.3 MB). Free memory was 234.8 MB in the beginning and 331.8 MB in the end (delta: -97.0 MB). Peak memory consumption was 16.8 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 48.40 ms. Allocated memory is still 371.2 MB. Free memory was 331.3 MB in the beginning and 328.6 MB in the end (delta: 2.7 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 42.99 ms. Allocated memory is still 371.2 MB. Free memory was 328.6 MB in the beginning and 327.0 MB in the end (delta: 1.6 MB). There was no memory consumed. Max. memory is 16.0 GB. * RCFGBuilder took 1767.74 ms. Allocated memory is still 371.2 MB. Free memory was 326.5 MB in the beginning and 266.2 MB in the end (delta: 60.3 MB). Peak memory consumption was 61.8 MB. Max. memory is 16.0 GB. * TraceAbstraction took 12694.41 ms. Allocated memory was 371.2 MB in the beginning and 536.9 MB in the end (delta: 165.7 MB). Free memory was 266.2 MB in the beginning and 334.9 MB in the end (delta: -68.7 MB). Peak memory consumption was 97.0 MB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 8537.1ms, 83 PlacesBefore, 36 PlacesAfterwards, 78 TransitionsBefore, 30 TransitionsAfterwards, 918 CoEnabledTransitionPairs, 5 FixpointIterations, 26 TrivialSequentialCompositions, 25 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 4 ConcurrentYvCompositions, 1 ChoiceCompositions, 56 TotalNumberOfCompositions, 1544 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 817, positive: 762, positive conditional: 0, positive unconditional: 762, negative: 55, negative conditional: 0, negative unconditional: 55, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 578, positive: 550, positive conditional: 0, positive unconditional: 550, negative: 28, negative conditional: 0, negative unconditional: 28, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 578, positive: 550, positive conditional: 0, positive unconditional: 550, negative: 28, negative conditional: 0, negative unconditional: 28, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 578, positive: 548, positive conditional: 0, positive unconditional: 548, negative: 30, negative conditional: 0, negative unconditional: 30, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 30, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 28, negative conditional: 0, negative unconditional: 28, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 511, positive: 8, positive conditional: 0, positive unconditional: 8, negative: 503, negative conditional: 0, negative unconditional: 503, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 817, positive: 212, positive conditional: 0, positive unconditional: 212, negative: 27, negative conditional: 0, negative unconditional: 27, unknown: 578, unknown conditional: 0, unknown unconditional: 578] , Statistics on independence cache: Total cache size (in pairs): 78, Positive cache size: 62, Positive conditional cache size: 0, Positive unconditional cache size: 62, Negative cache size: 16, Negative conditional cache size: 0, Negative unconditional cache size: 16 - 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; [L711] 0 _Bool main$tmp_guard0; VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, main$tmp_guard0=0] [L712] 0 _Bool main$tmp_guard1; [L714] 0 int x = 0; [L715] 0 _Bool x$flush_delayed; [L716] 0 int x$mem_tmp; [L717] 0 _Bool x$r_buff0_thd0; [L718] 0 _Bool x$r_buff0_thd1; [L719] 0 _Bool x$r_buff0_thd2; [L720] 0 _Bool x$r_buff1_thd0; [L721] 0 _Bool x$r_buff1_thd1; [L722] 0 _Bool x$r_buff1_thd2; VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0] [L723] 0 _Bool x$read_delayed; [L724] 0 int *x$read_delayed_var; [L725] 0 int x$w_buff0; VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=0] [L726] 0 _Bool x$w_buff0_used; [L727] 0 int x$w_buff1; [L728] 0 _Bool x$w_buff1_used; VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=0, x$w_buff0_used=0, x$w_buff1=0, x$w_buff1_used=0] [L730] 0 int y = 0; [L731] 0 _Bool weak$$choice0; [L732] 0 _Bool weak$$choice2; [L792] 0 pthread_t t1455; [L793] FCALL, FORK 0 pthread_create(&t1455, ((void *)0), P0, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=0, x$w_buff0_used=0, x$w_buff1=0, x$w_buff1_used=0, y=0] [L794] 0 pthread_t t1456; [L795] FCALL, FORK 0 pthread_create(&t1456, ((void *)0), P1, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=0, x$w_buff0_used=0, x$w_buff1=0, x$w_buff1_used=0, y=0] [L756] 2 x$w_buff1 = x$w_buff0 [L757] 2 x$w_buff0 = 2 [L758] 2 x$w_buff1_used = x$w_buff0_used [L759] 2 x$w_buff0_used = (_Bool)1 [L18] COND FALSE 2 !(!expression) [L761] 2 x$r_buff1_thd0 = x$r_buff0_thd0 [L762] 2 x$r_buff1_thd1 = x$r_buff0_thd1 [L763] 2 x$r_buff1_thd2 = x$r_buff0_thd2 [L764] 2 x$r_buff0_thd2 = (_Bool)1 VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=2, x$w_buff0_used=1, x$w_buff1=0, x$w_buff1_used=0, y=0] [L767] 2 __unbuffered_p1_EAX = y VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=2, x$w_buff0_used=1, x$w_buff1=0, x$w_buff1_used=0, y=0] [L736] 1 y = 1 VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=2, x$w_buff0_used=1, x$w_buff1=0, x$w_buff1_used=0, y=1] [L739] 1 x = 1 VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=1, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=2, x$w_buff0_used=1, x$w_buff1=0, x$w_buff1_used=0, y=1] [L742] EXPR 1 x$w_buff0_used && x$r_buff0_thd1 ? x$w_buff0 : (x$w_buff1_used && x$r_buff1_thd1 ? x$w_buff1 : x) [L742] EXPR 1 x$w_buff1_used && x$r_buff1_thd1 ? x$w_buff1 : x [L742] EXPR 1 x$w_buff0_used && x$r_buff0_thd1 ? x$w_buff0 : (x$w_buff1_used && x$r_buff1_thd1 ? x$w_buff1 : x) [L742] 1 x = x$w_buff0_used && x$r_buff0_thd1 ? x$w_buff0 : (x$w_buff1_used && x$r_buff1_thd1 ? x$w_buff1 : x) [L743] EXPR 1 x$w_buff0_used && x$r_buff0_thd1 ? (_Bool)0 : x$w_buff0_used [L743] 1 x$w_buff0_used = x$w_buff0_used && x$r_buff0_thd1 ? (_Bool)0 : x$w_buff0_used [L744] EXPR 1 x$w_buff0_used && x$r_buff0_thd1 || x$w_buff1_used && x$r_buff1_thd1 ? (_Bool)0 : x$w_buff1_used [L744] 1 x$w_buff1_used = x$w_buff0_used && x$r_buff0_thd1 || x$w_buff1_used && x$r_buff1_thd1 ? (_Bool)0 : x$w_buff1_used [L745] EXPR 1 x$w_buff0_used && x$r_buff0_thd1 ? (_Bool)0 : x$r_buff0_thd1 [L745] 1 x$r_buff0_thd1 = x$w_buff0_used && x$r_buff0_thd1 ? (_Bool)0 : x$r_buff0_thd1 [L746] EXPR 1 x$w_buff0_used && x$r_buff0_thd1 || x$w_buff1_used && x$r_buff1_thd1 ? (_Bool)0 : x$r_buff1_thd1 [L746] 1 x$r_buff1_thd1 = x$w_buff0_used && x$r_buff0_thd1 || x$w_buff1_used && x$r_buff1_thd1 ? (_Bool)0 : x$r_buff1_thd1 [L770] EXPR 2 x$w_buff0_used && x$r_buff0_thd2 ? x$w_buff0 : (x$w_buff1_used && x$r_buff1_thd2 ? x$w_buff1 : x) [L770] 2 x = x$w_buff0_used && x$r_buff0_thd2 ? x$w_buff0 : (x$w_buff1_used && x$r_buff1_thd2 ? x$w_buff1 : x) [L771] EXPR 2 x$w_buff0_used && x$r_buff0_thd2 ? (_Bool)0 : x$w_buff0_used [L771] 2 x$w_buff0_used = x$w_buff0_used && x$r_buff0_thd2 ? (_Bool)0 : x$w_buff0_used [L772] EXPR 2 x$w_buff0_used && x$r_buff0_thd2 || x$w_buff1_used && x$r_buff1_thd2 ? (_Bool)0 : x$w_buff1_used [L772] 2 x$w_buff1_used = x$w_buff0_used && x$r_buff0_thd2 || x$w_buff1_used && x$r_buff1_thd2 ? (_Bool)0 : x$w_buff1_used [L773] EXPR 2 x$w_buff0_used && x$r_buff0_thd2 ? (_Bool)0 : x$r_buff0_thd2 [L773] 2 x$r_buff0_thd2 = x$w_buff0_used && x$r_buff0_thd2 ? (_Bool)0 : x$r_buff0_thd2 [L774] EXPR 2 x$w_buff0_used && x$r_buff0_thd2 || x$w_buff1_used && x$r_buff1_thd2 ? (_Bool)0 : x$r_buff1_thd2 [L774] 2 x$r_buff1_thd2 = x$w_buff0_used && x$r_buff0_thd2 || x$w_buff1_used && x$r_buff1_thd2 ? (_Bool)0 : x$r_buff1_thd2 [L777] 2 __unbuffered_cnt = __unbuffered_cnt + 1 [L779] 2 return 0; [L749] 1 __unbuffered_cnt = __unbuffered_cnt + 1 [L751] 1 return 0; [L797] 0 main$tmp_guard0 = __unbuffered_cnt == 2 [L3] COND FALSE 0 !(!cond) [L801] EXPR 0 x$w_buff0_used && x$r_buff0_thd0 ? x$w_buff0 : (x$w_buff1_used && x$r_buff1_thd0 ? x$w_buff1 : x) [L801] EXPR 0 x$w_buff1_used && x$r_buff1_thd0 ? x$w_buff1 : x [L801] EXPR 0 x$w_buff0_used && x$r_buff0_thd0 ? x$w_buff0 : (x$w_buff1_used && x$r_buff1_thd0 ? x$w_buff1 : x) [L801] 0 x = x$w_buff0_used && x$r_buff0_thd0 ? x$w_buff0 : (x$w_buff1_used && x$r_buff1_thd0 ? x$w_buff1 : x) [L802] EXPR 0 x$w_buff0_used && x$r_buff0_thd0 ? (_Bool)0 : x$w_buff0_used [L802] 0 x$w_buff0_used = x$w_buff0_used && x$r_buff0_thd0 ? (_Bool)0 : x$w_buff0_used [L803] EXPR 0 x$w_buff0_used && x$r_buff0_thd0 || x$w_buff1_used && x$r_buff1_thd0 ? (_Bool)0 : x$w_buff1_used [L803] 0 x$w_buff1_used = x$w_buff0_used && x$r_buff0_thd0 || x$w_buff1_used && x$r_buff1_thd0 ? (_Bool)0 : x$w_buff1_used [L804] EXPR 0 x$w_buff0_used && x$r_buff0_thd0 ? (_Bool)0 : x$r_buff0_thd0 [L804] 0 x$r_buff0_thd0 = x$w_buff0_used && x$r_buff0_thd0 ? (_Bool)0 : x$r_buff0_thd0 [L805] EXPR 0 x$w_buff0_used && x$r_buff0_thd0 || x$w_buff1_used && x$r_buff1_thd0 ? (_Bool)0 : x$r_buff1_thd0 [L805] 0 x$r_buff1_thd0 = x$w_buff0_used && x$r_buff0_thd0 || x$w_buff1_used && x$r_buff1_thd0 ? (_Bool)0 : x$r_buff1_thd0 [L808] 0 weak$$choice0 = __VERIFIER_nondet_bool() [L809] 0 weak$$choice2 = __VERIFIER_nondet_bool() [L810] 0 x$flush_delayed = weak$$choice2 [L811] 0 x$mem_tmp = x [L812] EXPR 0 !x$w_buff0_used || !x$r_buff0_thd0 && !x$w_buff1_used || !x$r_buff0_thd0 && !x$r_buff1_thd0 ? x : (x$w_buff0_used && x$r_buff0_thd0 ? x$w_buff0 : x$w_buff1) [L812] 0 x = !x$w_buff0_used || !x$r_buff0_thd0 && !x$w_buff1_used || !x$r_buff0_thd0 && !x$r_buff1_thd0 ? x : (x$w_buff0_used && x$r_buff0_thd0 ? x$w_buff0 : x$w_buff1) [L813] EXPR 0 weak$$choice2 ? x$w_buff0 : (!x$w_buff0_used || !x$r_buff0_thd0 && !x$w_buff1_used || !x$r_buff0_thd0 && !x$r_buff1_thd0 ? x$w_buff0 : (x$w_buff0_used && x$r_buff0_thd0 ? x$w_buff0 : x$w_buff0)) [L813] EXPR 0 !x$w_buff0_used || !x$r_buff0_thd0 && !x$w_buff1_used || !x$r_buff0_thd0 && !x$r_buff1_thd0 ? x$w_buff0 : (x$w_buff0_used && x$r_buff0_thd0 ? x$w_buff0 : x$w_buff0) [L813] EXPR 0 weak$$choice2 ? x$w_buff0 : (!x$w_buff0_used || !x$r_buff0_thd0 && !x$w_buff1_used || !x$r_buff0_thd0 && !x$r_buff1_thd0 ? x$w_buff0 : (x$w_buff0_used && x$r_buff0_thd0 ? x$w_buff0 : x$w_buff0)) [L813] 0 x$w_buff0 = weak$$choice2 ? x$w_buff0 : (!x$w_buff0_used || !x$r_buff0_thd0 && !x$w_buff1_used || !x$r_buff0_thd0 && !x$r_buff1_thd0 ? x$w_buff0 : (x$w_buff0_used && x$r_buff0_thd0 ? x$w_buff0 : x$w_buff0)) [L814] EXPR 0 weak$$choice2 ? x$w_buff1 : (!x$w_buff0_used || !x$r_buff0_thd0 && !x$w_buff1_used || !x$r_buff0_thd0 && !x$r_buff1_thd0 ? x$w_buff1 : (x$w_buff0_used && x$r_buff0_thd0 ? x$w_buff1 : x$w_buff1)) [L814] EXPR 0 !x$w_buff0_used || !x$r_buff0_thd0 && !x$w_buff1_used || !x$r_buff0_thd0 && !x$r_buff1_thd0 ? x$w_buff1 : (x$w_buff0_used && x$r_buff0_thd0 ? x$w_buff1 : x$w_buff1) [L814] EXPR 0 weak$$choice2 ? x$w_buff1 : (!x$w_buff0_used || !x$r_buff0_thd0 && !x$w_buff1_used || !x$r_buff0_thd0 && !x$r_buff1_thd0 ? x$w_buff1 : (x$w_buff0_used && x$r_buff0_thd0 ? x$w_buff1 : x$w_buff1)) [L814] 0 x$w_buff1 = weak$$choice2 ? x$w_buff1 : (!x$w_buff0_used || !x$r_buff0_thd0 && !x$w_buff1_used || !x$r_buff0_thd0 && !x$r_buff1_thd0 ? x$w_buff1 : (x$w_buff0_used && x$r_buff0_thd0 ? x$w_buff1 : x$w_buff1)) [L815] EXPR 0 weak$$choice2 ? x$w_buff0_used : (!x$w_buff0_used || !x$r_buff0_thd0 && !x$w_buff1_used || !x$r_buff0_thd0 && !x$r_buff1_thd0 ? x$w_buff0_used : (x$w_buff0_used && x$r_buff0_thd0 ? (_Bool)0 : x$w_buff0_used)) [L815] EXPR 0 !x$w_buff0_used || !x$r_buff0_thd0 && !x$w_buff1_used || !x$r_buff0_thd0 && !x$r_buff1_thd0 ? x$w_buff0_used : (x$w_buff0_used && x$r_buff0_thd0 ? (_Bool)0 : x$w_buff0_used) [L815] EXPR 0 weak$$choice2 ? x$w_buff0_used : (!x$w_buff0_used || !x$r_buff0_thd0 && !x$w_buff1_used || !x$r_buff0_thd0 && !x$r_buff1_thd0 ? x$w_buff0_used : (x$w_buff0_used && x$r_buff0_thd0 ? (_Bool)0 : x$w_buff0_used)) [L815] 0 x$w_buff0_used = weak$$choice2 ? x$w_buff0_used : (!x$w_buff0_used || !x$r_buff0_thd0 && !x$w_buff1_used || !x$r_buff0_thd0 && !x$r_buff1_thd0 ? x$w_buff0_used : (x$w_buff0_used && x$r_buff0_thd0 ? (_Bool)0 : x$w_buff0_used)) [L816] EXPR 0 weak$$choice2 ? x$w_buff1_used : (!x$w_buff0_used || !x$r_buff0_thd0 && !x$w_buff1_used || !x$r_buff0_thd0 && !x$r_buff1_thd0 ? x$w_buff1_used : (x$w_buff0_used && x$r_buff0_thd0 ? (_Bool)0 : (_Bool)0)) [L816] EXPR 0 !x$w_buff0_used || !x$r_buff0_thd0 && !x$w_buff1_used || !x$r_buff0_thd0 && !x$r_buff1_thd0 ? x$w_buff1_used : (x$w_buff0_used && x$r_buff0_thd0 ? (_Bool)0 : (_Bool)0) [L816] EXPR 0 weak$$choice2 ? x$w_buff1_used : (!x$w_buff0_used || !x$r_buff0_thd0 && !x$w_buff1_used || !x$r_buff0_thd0 && !x$r_buff1_thd0 ? x$w_buff1_used : (x$w_buff0_used && x$r_buff0_thd0 ? (_Bool)0 : (_Bool)0)) [L816] 0 x$w_buff1_used = weak$$choice2 ? x$w_buff1_used : (!x$w_buff0_used || !x$r_buff0_thd0 && !x$w_buff1_used || !x$r_buff0_thd0 && !x$r_buff1_thd0 ? x$w_buff1_used : (x$w_buff0_used && x$r_buff0_thd0 ? (_Bool)0 : (_Bool)0)) [L817] EXPR 0 weak$$choice2 ? x$r_buff0_thd0 : (!x$w_buff0_used || !x$r_buff0_thd0 && !x$w_buff1_used || !x$r_buff0_thd0 && !x$r_buff1_thd0 ? x$r_buff0_thd0 : (x$w_buff0_used && x$r_buff0_thd0 ? (_Bool)0 : x$r_buff0_thd0)) [L817] EXPR 0 !x$w_buff0_used || !x$r_buff0_thd0 && !x$w_buff1_used || !x$r_buff0_thd0 && !x$r_buff1_thd0 ? x$r_buff0_thd0 : (x$w_buff0_used && x$r_buff0_thd0 ? (_Bool)0 : x$r_buff0_thd0) [L817] EXPR 0 weak$$choice2 ? x$r_buff0_thd0 : (!x$w_buff0_used || !x$r_buff0_thd0 && !x$w_buff1_used || !x$r_buff0_thd0 && !x$r_buff1_thd0 ? x$r_buff0_thd0 : (x$w_buff0_used && x$r_buff0_thd0 ? (_Bool)0 : x$r_buff0_thd0)) [L817] 0 x$r_buff0_thd0 = weak$$choice2 ? x$r_buff0_thd0 : (!x$w_buff0_used || !x$r_buff0_thd0 && !x$w_buff1_used || !x$r_buff0_thd0 && !x$r_buff1_thd0 ? x$r_buff0_thd0 : (x$w_buff0_used && x$r_buff0_thd0 ? (_Bool)0 : x$r_buff0_thd0)) [L818] EXPR 0 weak$$choice2 ? x$r_buff1_thd0 : (!x$w_buff0_used || !x$r_buff0_thd0 && !x$w_buff1_used || !x$r_buff0_thd0 && !x$r_buff1_thd0 ? x$r_buff1_thd0 : (x$w_buff0_used && x$r_buff0_thd0 ? (_Bool)0 : (_Bool)0)) [L818] EXPR 0 !x$w_buff0_used || !x$r_buff0_thd0 && !x$w_buff1_used || !x$r_buff0_thd0 && !x$r_buff1_thd0 ? x$r_buff1_thd0 : (x$w_buff0_used && x$r_buff0_thd0 ? (_Bool)0 : (_Bool)0) [L818] EXPR 0 weak$$choice2 ? x$r_buff1_thd0 : (!x$w_buff0_used || !x$r_buff0_thd0 && !x$w_buff1_used || !x$r_buff0_thd0 && !x$r_buff1_thd0 ? x$r_buff1_thd0 : (x$w_buff0_used && x$r_buff0_thd0 ? (_Bool)0 : (_Bool)0)) [L818] 0 x$r_buff1_thd0 = weak$$choice2 ? x$r_buff1_thd0 : (!x$w_buff0_used || !x$r_buff0_thd0 && !x$w_buff1_used || !x$r_buff0_thd0 && !x$r_buff1_thd0 ? x$r_buff1_thd0 : (x$w_buff0_used && x$r_buff0_thd0 ? (_Bool)0 : (_Bool)0)) [L819] 0 main$tmp_guard1 = !(x == 2 && __unbuffered_p1_EAX == 0) [L820] EXPR 0 x$flush_delayed ? x$mem_tmp : x [L820] 0 x = x$flush_delayed ? x$mem_tmp : x [L821] 0 x$flush_delayed = (_Bool)0 [L18] COND TRUE 0 !expression [L18] 0 reach_error() VAL [\result={0:0}, __unbuffered_cnt=2, __unbuffered_p1_EAX=0, arg={0:0}, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, weak$$choice0=51, weak$$choice2=0, x=2, x$flush_delayed=0, x$mem_tmp=2, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=2, x$w_buff0_used=0, x$w_buff1=0, x$w_buff1_used=0, y=1] - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 79 locations, 2 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 3.1ms, RemoveRedundantFlowTime: 0.0ms, RemoveRedundantFlowUnfoldingTime: 0.0ms, BackfoldingTime: 0.0ms, BackfoldingUnfoldingTime: 0.0ms, FlowIncreaseByBackfolding: 0, BasicCegarLoop: VerificationResult: UNSAFE, OverallTime: 12507.0ms, OverallIterations: 14, TraceHistogramMax: 1, EmptinessCheckTime: 0.0ms, AutomataDifference: 1999.9ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 8599.0ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 84 SDtfs, 141 SDslu, 140 SDs, 0 SdLazy, 587 SolverSat, 167 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 704.5ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 120 GetRequests, 18 SyntacticMatches, 1 SemanticMatches, 101 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 114 ImplicationChecksByTransitivity, 828.4ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=446occurred in iteration=10, InterpolantAutomatonStates: 108, 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: 47.9ms SsaConstructionTime, 352.2ms SatisfiabilityAnalysisTime, 1182.0ms InterpolantComputationTime, 249 NumberOfCodeBlocks, 249 NumberOfCodeBlocksAsserted, 14 NumberOfCheckSat, 213 ConstructedInterpolants, 0 QuantifiedInterpolants, 1355 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 13 InterpolantComputations, 13 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...