/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/rfi001_pso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-0e22065b97d0a1f8b3904e080cebe0f05e88d2b7-0e22065 [2021-06-10 21:02:37,200 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-06-10 21:02:37,204 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-06-10 21:02:37,239 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-06-10 21:02:37,239 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-06-10 21:02:37,242 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-06-10 21:02:37,244 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-06-10 21:02:37,250 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-06-10 21:02:37,251 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-06-10 21:02:37,255 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-06-10 21:02:37,256 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-06-10 21:02:37,257 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-06-10 21:02:37,258 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-06-10 21:02:37,259 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-06-10 21:02:37,261 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-06-10 21:02:37,262 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-06-10 21:02:37,264 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-06-10 21:02:37,265 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-06-10 21:02:37,267 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-06-10 21:02:37,272 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-06-10 21:02:37,274 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-06-10 21:02:37,275 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-06-10 21:02:37,276 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-06-10 21:02:37,277 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-06-10 21:02:37,283 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-06-10 21:02:37,287 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-06-10 21:02:37,287 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-06-10 21:02:37,289 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-06-10 21:02:37,289 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-06-10 21:02:37,290 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-06-10 21:02:37,290 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-06-10 21:02:37,290 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-06-10 21:02:37,291 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-06-10 21:02:37,291 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-06-10 21:02:37,291 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-06-10 21:02:37,292 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-06-10 21:02:37,296 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 [2021-06-10 21:02:37,330 INFO L113 SettingsManager]: Loading preferences was successful [2021-06-10 21:02:37,330 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-06-10 21:02:37,332 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-06-10 21:02:37,333 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-06-10 21:02:37,333 INFO L138 SettingsManager]: * Use SBE=true [2021-06-10 21:02:37,333 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-06-10 21:02:37,333 INFO L138 SettingsManager]: * sizeof long=4 [2021-06-10 21:02:37,333 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-06-10 21:02:37,333 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-06-10 21:02:37,334 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-06-10 21:02:37,334 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-06-10 21:02:37,334 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-06-10 21:02:37,335 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-06-10 21:02:37,335 INFO L138 SettingsManager]: * sizeof long double=12 [2021-06-10 21:02:37,335 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-06-10 21:02:37,335 INFO L138 SettingsManager]: * Use constant arrays=true [2021-06-10 21:02:37,335 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-06-10 21:02:37,335 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-06-10 21:02:37,335 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-06-10 21:02:37,335 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-06-10 21:02:37,336 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-06-10 21:02:37,336 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-06-10 21:02:37,336 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-06-10 21:02:37,336 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-06-10 21:02:37,336 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-06-10 21:02:37,336 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-06-10 21:02:37,337 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-06-10 21:02:37,337 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-06-10 21:02:37,337 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-06-10 21:02:37,635 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-06-10 21:02:37,654 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-06-10 21:02:37,656 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-06-10 21:02:37,657 INFO L271 PluginConnector]: Initializing CDTParser... [2021-06-10 21:02:37,658 INFO L275 PluginConnector]: CDTParser initialized [2021-06-10 21:02:37,658 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/rfi001_pso.opt.i [2021-06-10 21:02:37,724 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3ed202498/7e60d689be16472bbbe0498512b5fd53/FLAGf1fd35cdf [2021-06-10 21:02:38,195 INFO L306 CDTParser]: Found 1 translation units. [2021-06-10 21:02:38,195 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/rfi001_pso.opt.i [2021-06-10 21:02:38,230 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3ed202498/7e60d689be16472bbbe0498512b5fd53/FLAGf1fd35cdf [2021-06-10 21:02:38,459 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3ed202498/7e60d689be16472bbbe0498512b5fd53 [2021-06-10 21:02:38,461 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-06-10 21:02:38,463 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-06-10 21:02:38,467 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-06-10 21:02:38,467 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-06-10 21:02:38,470 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-06-10 21:02:38,470 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.06 09:02:38" (1/1) ... [2021-06-10 21:02:38,472 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@f7a10ff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.06 09:02:38, skipping insertion in model container [2021-06-10 21:02:38,472 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.06 09:02:38" (1/1) ... [2021-06-10 21:02:38,477 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-06-10 21:02:38,529 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-06-10 21:02:38,672 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/rfi001_pso.opt.i[948,961] [2021-06-10 21:02:38,802 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-06-10 21:02:38,809 INFO L203 MainTranslator]: Completed pre-run [2021-06-10 21:02:38,818 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/rfi001_pso.opt.i[948,961] [2021-06-10 21:02:38,851 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-06-10 21:02:38,911 INFO L208 MainTranslator]: Completed translation [2021-06-10 21:02:38,912 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.06 09:02:38 WrapperNode [2021-06-10 21:02:38,912 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-06-10 21:02:38,913 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-06-10 21:02:38,913 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-06-10 21:02:38,913 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-06-10 21:02:38,919 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.06 09:02:38" (1/1) ... [2021-06-10 21:02:38,933 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.06 09:02:38" (1/1) ... [2021-06-10 21:02:38,972 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-06-10 21:02:38,973 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-06-10 21:02:38,973 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-06-10 21:02:38,973 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-06-10 21:02:38,981 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.06 09:02:38" (1/1) ... [2021-06-10 21:02:38,982 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.06 09:02:38" (1/1) ... [2021-06-10 21:02:38,990 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.06 09:02:38" (1/1) ... [2021-06-10 21:02:38,991 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.06 09:02:38" (1/1) ... [2021-06-10 21:02:39,002 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.06 09:02:38" (1/1) ... [2021-06-10 21:02:39,005 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.06 09:02:38" (1/1) ... [2021-06-10 21:02:39,007 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.06 09:02:38" (1/1) ... [2021-06-10 21:02:39,027 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-06-10 21:02:39,028 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-06-10 21:02:39,028 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-06-10 21:02:39,028 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-06-10 21:02:39,028 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.06 09:02:38" (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 [2021-06-10 21:02:39,101 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-06-10 21:02:39,101 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-06-10 21:02:39,102 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-06-10 21:02:39,102 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-06-10 21:02:39,102 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2021-06-10 21:02:39,102 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2021-06-10 21:02:39,103 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2021-06-10 21:02:39,103 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2021-06-10 21:02:39,104 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-06-10 21:02:39,104 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-06-10 21:02:39,104 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-06-10 21:02:39,104 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-06-10 21:02:39,106 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-06-10 21:02:40,671 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-06-10 21:02:40,671 INFO L299 CfgBuilder]: Removed 10 assume(true) statements. [2021-06-10 21:02:40,673 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.06 09:02:40 BoogieIcfgContainer [2021-06-10 21:02:40,673 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-06-10 21:02:40,674 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-06-10 21:02:40,674 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-06-10 21:02:40,677 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-06-10 21:02:40,677 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.06 09:02:38" (1/3) ... [2021-06-10 21:02:40,677 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5c8f719 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.06 09:02:40, skipping insertion in model container [2021-06-10 21:02:40,677 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.06 09:02:38" (2/3) ... [2021-06-10 21:02:40,678 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5c8f719 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.06 09:02:40, skipping insertion in model container [2021-06-10 21:02:40,678 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.06 09:02:40" (3/3) ... [2021-06-10 21:02:40,679 INFO L111 eAbstractionObserver]: Analyzing ICFG rfi001_pso.opt.i [2021-06-10 21:02:40,684 INFO L149 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-06-10 21:02:40,688 INFO L161 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2021-06-10 21:02:40,689 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-06-10 21:02:40,716 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 21:02:40,717 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 21:02:40,717 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 21:02:40,717 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 21:02:40,717 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 21:02:40,717 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 21:02:40,717 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 21:02:40,717 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 21:02:40,718 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 21:02:40,718 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 21:02:40,718 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 21:02:40,718 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 21:02:40,718 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 21:02:40,718 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 21:02:40,718 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 21:02:40,719 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 21:02:40,719 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 21:02:40,719 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 21:02:40,719 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 21:02:40,719 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 21:02:40,719 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 21:02:40,719 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 21:02:40,720 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 21:02:40,720 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 21:02:40,720 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 21:02:40,720 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 21:02:40,721 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 21:02:40,721 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 21:02:40,721 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 21:02:40,722 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 21:02:40,722 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 21:02:40,722 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 21:02:40,722 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 21:02:40,722 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 21:02:40,722 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 21:02:40,722 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 21:02:40,722 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 21:02:40,723 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 21:02:40,723 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 21:02:40,723 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 21:02:40,723 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 21:02:40,724 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 21:02:40,724 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 21:02:40,724 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 21:02:40,724 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 21:02:40,724 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 21:02:40,724 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 21:02:40,724 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 21:02:40,724 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 21:02:40,725 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 21:02:40,725 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 21:02:40,725 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 21:02:40,725 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 21:02:40,725 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 21:02:40,726 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 21:02:40,726 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 21:02:40,726 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 21:02:40,726 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 21:02:40,726 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 21:02:40,727 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 21:02:40,728 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 21:02:40,728 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 21:02:40,729 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 21:02:40,729 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 21:02:40,729 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 21:02:40,729 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 21:02:40,729 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 21:02:40,730 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 21:02:40,730 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 21:02:40,730 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 21:02:40,730 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 21:02:40,730 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 21:02:40,732 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 21:02:40,732 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 21:02:40,732 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 21:02:40,732 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 21:02:40,732 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 21:02:40,732 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 21:02:40,732 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 21:02:40,733 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 21:02:40,733 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 21:02:40,734 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 21:02:40,735 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-06-10 21:02:40,750 INFO L253 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2021-06-10 21:02:40,766 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-06-10 21:02:40,766 INFO L377 AbstractCegarLoop]: Hoare is false [2021-06-10 21:02:40,766 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-06-10 21:02:40,766 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-06-10 21:02:40,766 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-06-10 21:02:40,766 INFO L381 AbstractCegarLoop]: Difference is false [2021-06-10 21:02:40,766 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-06-10 21:02:40,766 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-06-10 21:02:40,777 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 89 places, 84 transitions, 178 flow [2021-06-10 21:02:40,806 INFO L129 PetriNetUnfolder]: 2/82 cut-off events. [2021-06-10 21:02:40,806 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-06-10 21:02:40,809 INFO L84 FinitePrefix]: Finished finitePrefix Result has 89 conditions, 82 events. 2/82 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 54 event pairs, 0 based on Foata normal form. 0/78 useless extension candidates. Maximal degree in co-relation 48. Up to 2 conditions per place. [2021-06-10 21:02:40,809 INFO L82 GeneralOperation]: Start removeDead. Operand has 89 places, 84 transitions, 178 flow [2021-06-10 21:02:40,813 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 87 places, 82 transitions, 170 flow [2021-06-10 21:02:40,814 INFO L168 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-06-10 21:02:40,824 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 87 places, 82 transitions, 170 flow [2021-06-10 21:02:40,827 INFO L138 LiptonReduction]: Starting Lipton reduction on Petri net that has 87 places, 82 transitions, 170 flow [2021-06-10 21:02:40,828 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 87 places, 82 transitions, 170 flow [2021-06-10 21:02:40,853 INFO L129 PetriNetUnfolder]: 2/82 cut-off events. [2021-06-10 21:02:40,855 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-06-10 21:02:40,856 INFO L84 FinitePrefix]: Finished finitePrefix Result has 89 conditions, 82 events. 2/82 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 52 event pairs, 0 based on Foata normal form. 0/78 useless extension candidates. Maximal degree in co-relation 48. Up to 2 conditions per place. [2021-06-10 21:02:40,860 INFO L151 LiptonReduction]: Number of co-enabled transitions 1046 [2021-06-10 21:02:40,978 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 21:02:41,008 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-10 21:02:41,009 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 21:02:41,017 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-10 21:02:41,018 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-10 21:02:41,065 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 21:02:41,066 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 21:02:41,081 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 21:02:41,082 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 21:02:41,097 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 21:02:41,098 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 21:02:41,178 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 21:02:41,184 INFO L427 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 2, 1] term [2021-06-10 21:02:41,184 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-06-10 21:02:41,214 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 21:02:41,220 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 21:02:41,416 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 21:02:41,417 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 21:02:41,433 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 21:02:41,434 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 21:02:41,451 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 21:02:41,452 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 21:02:41,494 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 21:02:41,495 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 21:02:41,687 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 21:02:41,688 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 21:02:41,706 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 21:02:41,707 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 21:02:41,799 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 21:02:41,801 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 21:02:41,838 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 21:02:41,839 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 21:02:41,940 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 21:02:41,941 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 21:02:41,958 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 21:02:41,959 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 21:02:42,013 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 21:02:42,020 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-10 21:02:42,021 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 21:02:42,024 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-10 21:02:42,025 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-10 21:02:42,046 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 21:02:42,047 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 21:02:42,071 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 21:02:42,072 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 21:02:42,088 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 21:02:42,089 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 21:02:42,173 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 21:02:42,176 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-10 21:02:42,176 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 21:02:42,177 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-10 21:02:42,177 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-10 21:02:42,249 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 21:02:42,251 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 21:02:42,297 INFO L142 QuantifierPusher]: treesize reduction 9, result has 30.8 percent of original size [2021-06-10 21:02:42,298 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 21:02:42,367 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 21:02:42,369 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 21:02:42,493 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 21:02:42,495 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 21:02:42,518 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 21:02:42,521 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 21:02:42,544 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 21:02:42,546 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 21:02:42,603 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 21:02:42,605 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 21:02:42,672 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 21:02:42,674 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 21:02:42,721 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 21:02:42,722 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 21:02:42,739 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 21:02:42,740 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 21:02:42,760 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 21:02:42,761 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 21:02:42,858 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 21:02:42,860 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 21:02:43,034 WARN L205 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 60 [2021-06-10 21:02:43,482 WARN L205 SmtUtils]: Spent 363.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 86 [2021-06-10 21:02:43,631 WARN L205 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 83 [2021-06-10 21:02:43,649 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 21:02:43,652 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-10 21:02:43,663 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 21:02:43,668 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-06-10 21:02:43,669 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-10 21:02:43,674 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 21:02:43,675 INFO L427 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 3, 3, 2, 2, 1] term [2021-06-10 21:02:43,675 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-06-10 21:02:43,679 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 21:02:43,683 INFO L147 QuantifierPusher]: treesize reduction 39, result has 69.0 percent of original size 87 [2021-06-10 21:02:43,684 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-10 21:02:43,689 INFO L142 QuantifierPusher]: treesize reduction 39, result has 75.6 percent of original size [2021-06-10 21:02:43,690 INFO L427 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 3, 3, 4, 2, 1] term [2021-06-10 21:02:43,690 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-06-10 21:02:43,695 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 21:02:43,699 INFO L147 QuantifierPusher]: treesize reduction 100, result has 38.7 percent of original size 63 [2021-06-10 21:02:43,701 INFO L427 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 3, 3, 3, 4, 2, 1] term [2021-06-10 21:02:43,702 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-06-10 21:02:43,704 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 21:02:43,718 INFO L147 QuantifierPusher]: treesize reduction 176, result has 33.3 percent of original size 88 [2021-06-10 21:02:43,861 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 21:02:43,864 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-10 21:02:43,865 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 21:02:43,865 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-10 21:02:43,866 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-10 21:02:43,916 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 21:02:43,918 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 21:02:44,654 WARN L205 SmtUtils]: Spent 703.00 ms on a formula simplification. DAG size of input: 230 DAG size of output: 190 [2021-06-10 21:02:45,214 WARN L205 SmtUtils]: Spent 558.00 ms on a formula simplification. DAG size of input: 188 DAG size of output: 187 [2021-06-10 21:02:46,495 WARN L205 SmtUtils]: Spent 1.28 s on a formula simplification. DAG size of input: 314 DAG size of output: 270 [2021-06-10 21:02:47,071 WARN L205 SmtUtils]: Spent 574.00 ms on a formula simplification that was a NOOP. DAG size: 267 [2021-06-10 21:02:47,075 INFO L142 QuantifierPusher]: treesize reduction 14, result has 30.0 percent of original size [2021-06-10 21:02:47,075 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 21:02:47,730 WARN L205 SmtUtils]: Spent 653.00 ms on a formula simplification. DAG size of input: 226 DAG size of output: 185 [2021-06-10 21:02:48,061 WARN L205 SmtUtils]: Spent 329.00 ms on a formula simplification that was a NOOP. DAG size: 183 [2021-06-10 21:02:49,424 WARN L205 SmtUtils]: Spent 1.36 s on a formula simplification. DAG size of input: 310 DAG size of output: 266 [2021-06-10 21:02:50,043 WARN L205 SmtUtils]: Spent 594.00 ms on a formula simplification that was a NOOP. DAG size: 263 [2021-06-10 21:02:50,122 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 21:02:50,125 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-10 21:02:50,128 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 21:02:50,129 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-06-10 21:02:50,130 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-06-10 21:02:50,176 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 21:02:50,192 INFO L147 QuantifierPusher]: treesize reduction 80, result has 25.2 percent of original size 27 [2021-06-10 21:02:50,273 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 21:02:50,275 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 21:02:50,373 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 21:02:50,375 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 21:02:50,413 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 21:02:50,414 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 21:02:50,585 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 21:02:50,591 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-10 21:02:50,592 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 21:02:50,592 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-10 21:02:50,593 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-10 21:02:50,943 WARN L205 SmtUtils]: Spent 309.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2021-06-10 21:02:51,233 WARN L205 SmtUtils]: Spent 289.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2021-06-10 21:02:51,922 WARN L205 SmtUtils]: Spent 686.00 ms on a formula simplification that was a NOOP. DAG size: 266 [2021-06-10 21:02:52,539 WARN L205 SmtUtils]: Spent 615.00 ms on a formula simplification that was a NOOP. DAG size: 266 [2021-06-10 21:02:52,636 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 21:02:52,639 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 21:02:52,943 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 21:02:52,948 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-10 21:02:52,948 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 21:02:52,949 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-10 21:02:52,950 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-10 21:02:53,461 WARN L205 SmtUtils]: Spent 377.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2021-06-10 21:02:53,783 WARN L205 SmtUtils]: Spent 321.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2021-06-10 21:02:54,381 WARN L205 SmtUtils]: Spent 595.00 ms on a formula simplification that was a NOOP. DAG size: 274 [2021-06-10 21:02:54,991 WARN L205 SmtUtils]: Spent 608.00 ms on a formula simplification that was a NOOP. DAG size: 274 [2021-06-10 21:02:54,994 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 21:02:54,995 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 21:02:55,217 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 21:02:55,224 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 21:02:55,555 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 21:02:55,559 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-10 21:02:55,559 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 21:02:55,560 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-10 21:02:55,563 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-10 21:02:56,226 WARN L205 SmtUtils]: Spent 345.00 ms on a formula simplification that was a NOOP. DAG size: 200 [2021-06-10 21:02:56,534 WARN L205 SmtUtils]: Spent 307.00 ms on a formula simplification that was a NOOP. DAG size: 198 [2021-06-10 21:02:57,212 WARN L205 SmtUtils]: Spent 675.00 ms on a formula simplification that was a NOOP. DAG size: 280 [2021-06-10 21:02:57,930 WARN L205 SmtUtils]: Spent 715.00 ms on a formula simplification that was a NOOP. DAG size: 278 [2021-06-10 21:02:57,932 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 21:02:57,934 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 21:02:58,271 WARN L205 SmtUtils]: Spent 283.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 110 [2021-06-10 21:02:58,400 WARN L205 SmtUtils]: Spent 128.00 ms on a formula simplification that was a NOOP. DAG size: 106 [2021-06-10 21:02:58,692 WARN L205 SmtUtils]: Spent 290.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 110 [2021-06-10 21:02:58,831 WARN L205 SmtUtils]: Spent 137.00 ms on a formula simplification that was a NOOP. DAG size: 106 [2021-06-10 21:02:58,838 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 21:02:58,842 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-10 21:02:58,844 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 21:02:58,844 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-10 21:02:58,852 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-10 21:02:58,885 INFO L163 LiptonReduction]: Checked pairs total: 2989 [2021-06-10 21:02:58,885 INFO L165 LiptonReduction]: Total number of compositions: 81 [2021-06-10 21:02:58,887 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 18074 [2021-06-10 21:02:58,894 INFO L129 PetriNetUnfolder]: 2/11 cut-off events. [2021-06-10 21:02:58,894 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-06-10 21:02:58,894 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-10 21:02:58,894 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2021-06-10 21:02:58,895 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1INUSE_VIOLATION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-10 21:02:58,898 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-10 21:02:58,898 INFO L82 PathProgramCache]: Analyzing trace with hash 896524251, now seen corresponding path program 1 times [2021-06-10 21:02:58,904 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-10 21:02:58,904 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1756696184] [2021-06-10 21:02:58,904 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-10 21:02:59,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-10 21:02:59,076 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 21:02:59,076 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-10 21:02:59,083 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-10 21:02:59,083 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1756696184] [2021-06-10 21:02:59,084 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-10 21:02:59,084 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-06-10 21:02:59,084 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [269680596] [2021-06-10 21:02:59,090 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-06-10 21:02:59,091 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-10 21:02:59,101 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-06-10 21:02:59,102 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-06-10 21:02:59,103 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 128 out of 165 [2021-06-10 21:02:59,108 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 27 places, 22 transitions, 50 flow. Second operand has 3 states, 3 states have (on average 128.66666666666666) internal successors, (386), 3 states have internal predecessors, (386), 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) [2021-06-10 21:02:59,108 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-10 21:02:59,108 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 128 of 165 [2021-06-10 21:02:59,109 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-10 21:02:59,185 INFO L129 PetriNetUnfolder]: 23/80 cut-off events. [2021-06-10 21:02:59,185 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-06-10 21:02:59,186 INFO L84 FinitePrefix]: Finished finitePrefix Result has 135 conditions, 80 events. 23/80 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 311 event pairs, 3 based on Foata normal form. 6/79 useless extension candidates. Maximal degree in co-relation 126. Up to 37 conditions per place. [2021-06-10 21:02:59,188 INFO L132 encePairwiseOnDemand]: 159/165 looper letters, 7 selfloop transitions, 2 changer transitions 2/22 dead transitions. [2021-06-10 21:02:59,188 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 27 places, 22 transitions, 72 flow [2021-06-10 21:02:59,189 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-10 21:02:59,191 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-06-10 21:02:59,201 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 402 transitions. [2021-06-10 21:02:59,205 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8121212121212121 [2021-06-10 21:02:59,205 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 402 transitions. [2021-06-10 21:02:59,206 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 402 transitions. [2021-06-10 21:02:59,209 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-10 21:02:59,210 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 402 transitions. [2021-06-10 21:02:59,215 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 134.0) internal successors, (402), 3 states have internal predecessors, (402), 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) [2021-06-10 21:02:59,222 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 165.0) internal successors, (660), 4 states have internal predecessors, (660), 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) [2021-06-10 21:02:59,222 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 165.0) internal successors, (660), 4 states have internal predecessors, (660), 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) [2021-06-10 21:02:59,224 INFO L185 Difference]: Start difference. First operand has 27 places, 22 transitions, 50 flow. Second operand 3 states and 402 transitions. [2021-06-10 21:02:59,225 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 27 places, 22 transitions, 72 flow [2021-06-10 21:02:59,226 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 25 places, 22 transitions, 70 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-06-10 21:02:59,227 INFO L241 Difference]: Finished difference. Result has 25 places, 17 transitions, 42 flow [2021-06-10 21:02:59,229 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=165, PETRI_DIFFERENCE_MINUEND_FLOW=40, PETRI_DIFFERENCE_MINUEND_PLACES=23, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=18, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=16, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=42, PETRI_PLACES=25, PETRI_TRANSITIONS=17} [2021-06-10 21:02:59,230 INFO L343 CegarLoopForPetriNet]: 27 programPoint places, -2 predicate places. [2021-06-10 21:02:59,230 INFO L480 AbstractCegarLoop]: Abstraction has has 25 places, 17 transitions, 42 flow [2021-06-10 21:02:59,230 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 128.66666666666666) internal successors, (386), 3 states have internal predecessors, (386), 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) [2021-06-10 21:02:59,230 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-10 21:02:59,230 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-06-10 21:02:59,231 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-06-10 21:02:59,231 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1INUSE_VIOLATION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-10 21:02:59,232 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-10 21:02:59,232 INFO L82 PathProgramCache]: Analyzing trace with hash -1728525680, now seen corresponding path program 1 times [2021-06-10 21:02:59,233 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-10 21:02:59,233 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [587354568] [2021-06-10 21:02:59,233 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-10 21:02:59,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-10 21:02:59,334 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 21:02:59,335 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-10 21:02:59,338 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-10 21:02:59,338 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [587354568] [2021-06-10 21:02:59,338 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-10 21:02:59,338 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-06-10 21:02:59,338 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1256306356] [2021-06-10 21:02:59,339 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-06-10 21:02:59,339 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-10 21:02:59,340 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-06-10 21:02:59,340 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-06-10 21:02:59,341 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 134 out of 165 [2021-06-10 21:02:59,342 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 25 places, 17 transitions, 42 flow. Second operand has 3 states, 3 states have (on average 134.66666666666666) internal successors, (404), 3 states have internal predecessors, (404), 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) [2021-06-10 21:02:59,342 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-10 21:02:59,342 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 134 of 165 [2021-06-10 21:02:59,342 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-10 21:02:59,351 INFO L129 PetriNetUnfolder]: 0/17 cut-off events. [2021-06-10 21:02:59,352 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-06-10 21:02:59,352 INFO L84 FinitePrefix]: Finished finitePrefix Result has 29 conditions, 17 events. 0/17 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 23 event pairs, 0 based on Foata normal form. 1/17 useless extension candidates. Maximal degree in co-relation 0. Up to 3 conditions per place. [2021-06-10 21:02:59,352 INFO L132 encePairwiseOnDemand]: 162/165 looper letters, 1 selfloop transitions, 2 changer transitions 1/17 dead transitions. [2021-06-10 21:02:59,352 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 26 places, 17 transitions, 48 flow [2021-06-10 21:02:59,353 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-10 21:02:59,353 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-06-10 21:02:59,354 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 406 transitions. [2021-06-10 21:02:59,354 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8202020202020202 [2021-06-10 21:02:59,354 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 406 transitions. [2021-06-10 21:02:59,354 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 406 transitions. [2021-06-10 21:02:59,355 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-10 21:02:59,355 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 406 transitions. [2021-06-10 21:02:59,356 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 135.33333333333334) internal successors, (406), 3 states have internal predecessors, (406), 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) [2021-06-10 21:02:59,357 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 165.0) internal successors, (660), 4 states have internal predecessors, (660), 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) [2021-06-10 21:02:59,357 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 165.0) internal successors, (660), 4 states have internal predecessors, (660), 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) [2021-06-10 21:02:59,357 INFO L185 Difference]: Start difference. First operand has 25 places, 17 transitions, 42 flow. Second operand 3 states and 406 transitions. [2021-06-10 21:02:59,358 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 26 places, 17 transitions, 48 flow [2021-06-10 21:02:59,358 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 24 places, 17 transitions, 44 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-06-10 21:02:59,358 INFO L241 Difference]: Finished difference. Result has 25 places, 16 transitions, 44 flow [2021-06-10 21:02:59,359 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=165, PETRI_DIFFERENCE_MINUEND_FLOW=38, PETRI_DIFFERENCE_MINUEND_PLACES=22, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=17, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=15, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=44, PETRI_PLACES=25, PETRI_TRANSITIONS=16} [2021-06-10 21:02:59,359 INFO L343 CegarLoopForPetriNet]: 27 programPoint places, -2 predicate places. [2021-06-10 21:02:59,359 INFO L480 AbstractCegarLoop]: Abstraction has has 25 places, 16 transitions, 44 flow [2021-06-10 21:02:59,359 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 134.66666666666666) internal successors, (404), 3 states have internal predecessors, (404), 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) [2021-06-10 21:02:59,360 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-10 21:02:59,360 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-10 21:02:59,360 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-06-10 21:02:59,360 INFO L428 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1INUSE_VIOLATION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-10 21:02:59,360 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-10 21:02:59,360 INFO L82 PathProgramCache]: Analyzing trace with hash 1039136801, now seen corresponding path program 1 times [2021-06-10 21:02:59,361 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-10 21:02:59,361 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1581990868] [2021-06-10 21:02:59,361 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-10 21:02:59,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-10 21:02:59,517 INFO L142 QuantifierPusher]: treesize reduction 30, result has 34.8 percent of original size [2021-06-10 21:02:59,518 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-06-10 21:02:59,529 INFO L142 QuantifierPusher]: treesize reduction 1, result has 97.4 percent of original size [2021-06-10 21:02:59,530 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-06-10 21:02:59,553 INFO L142 QuantifierPusher]: treesize reduction 1, result has 97.4 percent of original size [2021-06-10 21:02:59,556 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-06-10 21:02:59,578 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-10 21:02:59,578 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1581990868] [2021-06-10 21:02:59,578 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-10 21:02:59,578 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-06-10 21:02:59,578 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [29382941] [2021-06-10 21:02:59,579 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-06-10 21:02:59,579 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-10 21:02:59,581 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-06-10 21:02:59,581 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-06-10 21:02:59,583 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 113 out of 165 [2021-06-10 21:02:59,584 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 25 places, 16 transitions, 44 flow. Second operand has 5 states, 5 states have (on average 113.8) internal successors, (569), 5 states have internal predecessors, (569), 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) [2021-06-10 21:02:59,584 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-10 21:02:59,584 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 113 of 165 [2021-06-10 21:02:59,585 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-10 21:02:59,680 INFO L129 PetriNetUnfolder]: 21/68 cut-off events. [2021-06-10 21:02:59,680 INFO L130 PetriNetUnfolder]: For 5/5 co-relation queries the response was YES. [2021-06-10 21:02:59,681 INFO L84 FinitePrefix]: Finished finitePrefix Result has 138 conditions, 68 events. 21/68 cut-off events. For 5/5 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 217 event pairs, 13 based on Foata normal form. 1/69 useless extension candidates. Maximal degree in co-relation 128. Up to 40 conditions per place. [2021-06-10 21:02:59,682 INFO L132 encePairwiseOnDemand]: 160/165 looper letters, 8 selfloop transitions, 5 changer transitions 0/22 dead transitions. [2021-06-10 21:02:59,682 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 27 places, 22 transitions, 82 flow [2021-06-10 21:02:59,683 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-10 21:02:59,683 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-06-10 21:02:59,685 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 466 transitions. [2021-06-10 21:02:59,685 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.706060606060606 [2021-06-10 21:02:59,685 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 466 transitions. [2021-06-10 21:02:59,685 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 466 transitions. [2021-06-10 21:02:59,686 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-10 21:02:59,686 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 466 transitions. [2021-06-10 21:02:59,687 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 116.5) internal successors, (466), 4 states have internal predecessors, (466), 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) [2021-06-10 21:02:59,688 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 165.0) internal successors, (825), 5 states have internal predecessors, (825), 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) [2021-06-10 21:02:59,689 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 165.0) internal successors, (825), 5 states have internal predecessors, (825), 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) [2021-06-10 21:02:59,689 INFO L185 Difference]: Start difference. First operand has 25 places, 16 transitions, 44 flow. Second operand 4 states and 466 transitions. [2021-06-10 21:02:59,689 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 27 places, 22 transitions, 82 flow [2021-06-10 21:02:59,689 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 25 places, 22 transitions, 78 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-06-10 21:02:59,690 INFO L241 Difference]: Finished difference. Result has 27 places, 20 transitions, 72 flow [2021-06-10 21:02:59,690 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=165, PETRI_DIFFERENCE_MINUEND_FLOW=40, PETRI_DIFFERENCE_MINUEND_PLACES=22, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=16, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=12, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=72, PETRI_PLACES=27, PETRI_TRANSITIONS=20} [2021-06-10 21:02:59,690 INFO L343 CegarLoopForPetriNet]: 27 programPoint places, 0 predicate places. [2021-06-10 21:02:59,690 INFO L480 AbstractCegarLoop]: Abstraction has has 27 places, 20 transitions, 72 flow [2021-06-10 21:02:59,691 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 113.8) internal successors, (569), 5 states have internal predecessors, (569), 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) [2021-06-10 21:02:59,691 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-10 21:02:59,691 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-10 21:02:59,691 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-06-10 21:02:59,692 INFO L428 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1INUSE_VIOLATION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-10 21:02:59,692 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-10 21:02:59,693 INFO L82 PathProgramCache]: Analyzing trace with hash 1437271603, now seen corresponding path program 1 times [2021-06-10 21:02:59,693 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-10 21:02:59,693 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1754197879] [2021-06-10 21:02:59,694 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-10 21:02:59,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-10 21:02:59,814 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 21:02:59,815 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-06-10 21:02:59,826 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 21:02:59,828 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-10 21:02:59,839 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 21:02:59,840 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-06-10 21:02:59,855 INFO L142 QuantifierPusher]: treesize reduction 1, result has 97.4 percent of original size [2021-06-10 21:02:59,856 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-06-10 21:02:59,879 INFO L142 QuantifierPusher]: treesize reduction 1, result has 97.4 percent of original size [2021-06-10 21:02:59,880 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-06-10 21:02:59,901 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-10 21:02:59,901 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1754197879] [2021-06-10 21:02:59,901 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-10 21:02:59,902 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-06-10 21:02:59,902 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1978406307] [2021-06-10 21:02:59,902 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-06-10 21:02:59,902 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-10 21:02:59,902 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-06-10 21:02:59,903 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2021-06-10 21:02:59,906 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 97 out of 165 [2021-06-10 21:02:59,909 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 27 places, 20 transitions, 72 flow. Second operand has 7 states, 7 states have (on average 97.85714285714286) internal successors, (685), 7 states have internal predecessors, (685), 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) [2021-06-10 21:02:59,909 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-10 21:02:59,909 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 97 of 165 [2021-06-10 21:02:59,909 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-10 21:03:00,099 INFO L129 PetriNetUnfolder]: 77/167 cut-off events. [2021-06-10 21:03:00,099 INFO L130 PetriNetUnfolder]: For 64/68 co-relation queries the response was YES. [2021-06-10 21:03:00,100 INFO L84 FinitePrefix]: Finished finitePrefix Result has 407 conditions, 167 events. 77/167 cut-off events. For 64/68 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 617 event pairs, 8 based on Foata normal form. 1/168 useless extension candidates. Maximal degree in co-relation 395. Up to 118 conditions per place. [2021-06-10 21:03:00,101 INFO L132 encePairwiseOnDemand]: 157/165 looper letters, 17 selfloop transitions, 11 changer transitions 0/34 dead transitions. [2021-06-10 21:03:00,101 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 32 places, 34 transitions, 162 flow [2021-06-10 21:03:00,102 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-06-10 21:03:00,102 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-06-10 21:03:00,104 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 608 transitions. [2021-06-10 21:03:00,104 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6141414141414141 [2021-06-10 21:03:00,104 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 608 transitions. [2021-06-10 21:03:00,104 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 608 transitions. [2021-06-10 21:03:00,105 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-10 21:03:00,105 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 608 transitions. [2021-06-10 21:03:00,106 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 101.33333333333333) internal successors, (608), 6 states have internal predecessors, (608), 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) [2021-06-10 21:03:00,108 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 165.0) internal successors, (1155), 7 states have internal predecessors, (1155), 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) [2021-06-10 21:03:00,109 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 165.0) internal successors, (1155), 7 states have internal predecessors, (1155), 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) [2021-06-10 21:03:00,109 INFO L185 Difference]: Start difference. First operand has 27 places, 20 transitions, 72 flow. Second operand 6 states and 608 transitions. [2021-06-10 21:03:00,109 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 32 places, 34 transitions, 162 flow [2021-06-10 21:03:00,110 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 32 places, 34 transitions, 162 flow, removed 0 selfloop flow, removed 0 redundant places. [2021-06-10 21:03:00,110 INFO L241 Difference]: Finished difference. Result has 34 places, 27 transitions, 134 flow [2021-06-10 21:03:00,111 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=165, PETRI_DIFFERENCE_MINUEND_FLOW=72, PETRI_DIFFERENCE_MINUEND_PLACES=27, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=20, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=12, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=134, PETRI_PLACES=34, PETRI_TRANSITIONS=27} [2021-06-10 21:03:00,111 INFO L343 CegarLoopForPetriNet]: 27 programPoint places, 7 predicate places. [2021-06-10 21:03:00,111 INFO L480 AbstractCegarLoop]: Abstraction has has 34 places, 27 transitions, 134 flow [2021-06-10 21:03:00,111 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 97.85714285714286) internal successors, (685), 7 states have internal predecessors, (685), 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) [2021-06-10 21:03:00,112 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-10 21:03:00,112 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-10 21:03:00,112 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-06-10 21:03:00,112 INFO L428 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1INUSE_VIOLATION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-10 21:03:00,112 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-10 21:03:00,112 INFO L82 PathProgramCache]: Analyzing trace with hash 1436031913, now seen corresponding path program 2 times [2021-06-10 21:03:00,113 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-10 21:03:00,113 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [83561052] [2021-06-10 21:03:00,113 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-10 21:03:00,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-10 21:03:00,168 INFO L142 QuantifierPusher]: treesize reduction 30, result has 25.0 percent of original size [2021-06-10 21:03:00,168 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-10 21:03:00,176 INFO L142 QuantifierPusher]: treesize reduction 30, result has 30.2 percent of original size [2021-06-10 21:03:00,176 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-10 21:03:00,187 INFO L142 QuantifierPusher]: treesize reduction 40, result has 54.0 percent of original size [2021-06-10 21:03:00,188 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-06-10 21:03:00,207 INFO L142 QuantifierPusher]: treesize reduction 1, result has 97.3 percent of original size [2021-06-10 21:03:00,208 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-06-10 21:03:00,229 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-10 21:03:00,230 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [83561052] [2021-06-10 21:03:00,230 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-10 21:03:00,230 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-06-10 21:03:00,230 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [414184017] [2021-06-10 21:03:00,230 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-06-10 21:03:00,230 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-10 21:03:00,231 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-06-10 21:03:00,231 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-06-10 21:03:00,235 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 119 out of 165 [2021-06-10 21:03:00,236 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 34 places, 27 transitions, 134 flow. Second operand has 6 states, 6 states have (on average 119.83333333333333) internal successors, (719), 6 states have internal predecessors, (719), 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) [2021-06-10 21:03:00,237 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-10 21:03:00,237 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 119 of 165 [2021-06-10 21:03:00,237 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-10 21:03:00,323 INFO L129 PetriNetUnfolder]: 32/99 cut-off events. [2021-06-10 21:03:00,323 INFO L130 PetriNetUnfolder]: For 101/107 co-relation queries the response was YES. [2021-06-10 21:03:00,324 INFO L84 FinitePrefix]: Finished finitePrefix Result has 315 conditions, 99 events. 32/99 cut-off events. For 101/107 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 396 event pairs, 3 based on Foata normal form. 1/100 useless extension candidates. Maximal degree in co-relation 299. Up to 53 conditions per place. [2021-06-10 21:03:00,325 INFO L132 encePairwiseOnDemand]: 158/165 looper letters, 12 selfloop transitions, 13 changer transitions 0/35 dead transitions. [2021-06-10 21:03:00,325 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 38 places, 35 transitions, 226 flow [2021-06-10 21:03:00,326 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-06-10 21:03:00,326 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-06-10 21:03:00,327 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 612 transitions. [2021-06-10 21:03:00,328 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7418181818181818 [2021-06-10 21:03:00,328 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 612 transitions. [2021-06-10 21:03:00,328 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 612 transitions. [2021-06-10 21:03:00,328 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-10 21:03:00,328 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 612 transitions. [2021-06-10 21:03:00,330 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 122.4) internal successors, (612), 5 states have internal predecessors, (612), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-10 21:03:00,333 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 165.0) internal successors, (990), 6 states have internal predecessors, (990), 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) [2021-06-10 21:03:00,334 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 165.0) internal successors, (990), 6 states have internal predecessors, (990), 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) [2021-06-10 21:03:00,334 INFO L185 Difference]: Start difference. First operand has 34 places, 27 transitions, 134 flow. Second operand 5 states and 612 transitions. [2021-06-10 21:03:00,334 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 38 places, 35 transitions, 226 flow [2021-06-10 21:03:00,348 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 38 places, 35 transitions, 216 flow, removed 5 selfloop flow, removed 0 redundant places. [2021-06-10 21:03:00,348 INFO L241 Difference]: Finished difference. Result has 40 places, 34 transitions, 211 flow [2021-06-10 21:03:00,349 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=165, PETRI_DIFFERENCE_MINUEND_FLOW=128, PETRI_DIFFERENCE_MINUEND_PLACES=34, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=27, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=15, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=211, PETRI_PLACES=40, PETRI_TRANSITIONS=34} [2021-06-10 21:03:00,349 INFO L343 CegarLoopForPetriNet]: 27 programPoint places, 13 predicate places. [2021-06-10 21:03:00,349 INFO L480 AbstractCegarLoop]: Abstraction has has 40 places, 34 transitions, 211 flow [2021-06-10 21:03:00,349 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 119.83333333333333) internal successors, (719), 6 states have internal predecessors, (719), 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) [2021-06-10 21:03:00,349 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-10 21:03:00,350 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-10 21:03:00,350 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-06-10 21:03:00,350 INFO L428 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1INUSE_VIOLATION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-10 21:03:00,350 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-10 21:03:00,350 INFO L82 PathProgramCache]: Analyzing trace with hash 1109456253, now seen corresponding path program 3 times [2021-06-10 21:03:00,350 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-10 21:03:00,350 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [68818999] [2021-06-10 21:03:00,350 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-10 21:03:00,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-10 21:03:00,398 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 21:03:00,398 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-10 21:03:00,405 INFO L142 QuantifierPusher]: treesize reduction 1, result has 97.2 percent of original size [2021-06-10 21:03:00,406 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-06-10 21:03:00,420 INFO L142 QuantifierPusher]: treesize reduction 1, result has 97.2 percent of original size [2021-06-10 21:03:00,421 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-06-10 21:03:00,441 INFO L142 QuantifierPusher]: treesize reduction 1, result has 97.4 percent of original size [2021-06-10 21:03:00,442 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-06-10 21:03:00,463 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-10 21:03:00,463 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [68818999] [2021-06-10 21:03:00,463 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-10 21:03:00,463 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-06-10 21:03:00,463 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1441877346] [2021-06-10 21:03:00,464 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-06-10 21:03:00,464 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-10 21:03:00,464 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-06-10 21:03:00,465 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-06-10 21:03:00,466 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 116 out of 165 [2021-06-10 21:03:00,466 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 40 places, 34 transitions, 211 flow. Second operand has 6 states, 6 states have (on average 116.83333333333333) internal successors, (701), 6 states have internal predecessors, (701), 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) [2021-06-10 21:03:00,467 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-10 21:03:00,467 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 116 of 165 [2021-06-10 21:03:00,467 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-10 21:03:00,566 INFO L129 PetriNetUnfolder]: 31/88 cut-off events. [2021-06-10 21:03:00,566 INFO L130 PetriNetUnfolder]: For 178/205 co-relation queries the response was YES. [2021-06-10 21:03:00,567 INFO L84 FinitePrefix]: Finished finitePrefix Result has 353 conditions, 88 events. 31/88 cut-off events. For 178/205 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 332 event pairs, 2 based on Foata normal form. 19/107 useless extension candidates. Maximal degree in co-relation 333. Up to 47 conditions per place. [2021-06-10 21:03:00,567 INFO L132 encePairwiseOnDemand]: 158/165 looper letters, 11 selfloop transitions, 17 changer transitions 0/38 dead transitions. [2021-06-10 21:03:00,567 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 45 places, 38 transitions, 293 flow [2021-06-10 21:03:00,569 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-06-10 21:03:00,569 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-06-10 21:03:00,570 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 713 transitions. [2021-06-10 21:03:00,571 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7202020202020202 [2021-06-10 21:03:00,571 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 713 transitions. [2021-06-10 21:03:00,571 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 713 transitions. [2021-06-10 21:03:00,571 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-10 21:03:00,571 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 713 transitions. [2021-06-10 21:03:00,572 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 118.83333333333333) internal successors, (713), 6 states have internal predecessors, (713), 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) [2021-06-10 21:03:00,574 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 165.0) internal successors, (1155), 7 states have internal predecessors, (1155), 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) [2021-06-10 21:03:00,574 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 165.0) internal successors, (1155), 7 states have internal predecessors, (1155), 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) [2021-06-10 21:03:00,575 INFO L185 Difference]: Start difference. First operand has 40 places, 34 transitions, 211 flow. Second operand 6 states and 713 transitions. [2021-06-10 21:03:00,575 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 45 places, 38 transitions, 293 flow [2021-06-10 21:03:00,577 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 44 places, 38 transitions, 280 flow, removed 2 selfloop flow, removed 1 redundant places. [2021-06-10 21:03:00,577 INFO L241 Difference]: Finished difference. Result has 45 places, 37 transitions, 269 flow [2021-06-10 21:03:00,578 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=165, PETRI_DIFFERENCE_MINUEND_FLOW=198, PETRI_DIFFERENCE_MINUEND_PLACES=39, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=34, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=14, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=17, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=269, PETRI_PLACES=45, PETRI_TRANSITIONS=37} [2021-06-10 21:03:00,578 INFO L343 CegarLoopForPetriNet]: 27 programPoint places, 18 predicate places. [2021-06-10 21:03:00,578 INFO L480 AbstractCegarLoop]: Abstraction has has 45 places, 37 transitions, 269 flow [2021-06-10 21:03:00,578 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 116.83333333333333) internal successors, (701), 6 states have internal predecessors, (701), 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) [2021-06-10 21:03:00,578 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-10 21:03:00,578 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-10 21:03:00,579 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-06-10 21:03:00,579 INFO L428 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr1INUSE_VIOLATION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-10 21:03:00,579 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-10 21:03:00,579 INFO L82 PathProgramCache]: Analyzing trace with hash 329875647, now seen corresponding path program 4 times [2021-06-10 21:03:00,579 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-10 21:03:00,579 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [401599745] [2021-06-10 21:03:00,580 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-10 21:03:00,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-10 21:03:00,628 INFO L142 QuantifierPusher]: treesize reduction 30, result has 25.0 percent of original size [2021-06-10 21:03:00,628 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-10 21:03:00,636 INFO L142 QuantifierPusher]: treesize reduction 40, result has 52.4 percent of original size [2021-06-10 21:03:00,637 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-06-10 21:03:00,653 INFO L142 QuantifierPusher]: treesize reduction 40, result has 54.0 percent of original size [2021-06-10 21:03:00,654 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-06-10 21:03:00,674 INFO L142 QuantifierPusher]: treesize reduction 1, result has 97.3 percent of original size [2021-06-10 21:03:00,675 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-06-10 21:03:00,701 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-10 21:03:00,701 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [401599745] [2021-06-10 21:03:00,701 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-10 21:03:00,702 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-06-10 21:03:00,702 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1741667893] [2021-06-10 21:03:00,702 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-06-10 21:03:00,702 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-10 21:03:00,703 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-06-10 21:03:00,703 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-06-10 21:03:00,704 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 119 out of 165 [2021-06-10 21:03:00,704 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 45 places, 37 transitions, 269 flow. Second operand has 6 states, 6 states have (on average 119.83333333333333) internal successors, (719), 6 states have internal predecessors, (719), 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) [2021-06-10 21:03:00,704 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-10 21:03:00,704 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 119 of 165 [2021-06-10 21:03:00,705 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-10 21:03:00,803 INFO L129 PetriNetUnfolder]: 32/106 cut-off events. [2021-06-10 21:03:00,803 INFO L130 PetriNetUnfolder]: For 344/384 co-relation queries the response was YES. [2021-06-10 21:03:00,804 INFO L84 FinitePrefix]: Finished finitePrefix Result has 460 conditions, 106 events. 32/106 cut-off events. For 344/384 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 452 event pairs, 1 based on Foata normal form. 29/135 useless extension candidates. Maximal degree in co-relation 438. Up to 43 conditions per place. [2021-06-10 21:03:00,805 INFO L132 encePairwiseOnDemand]: 159/165 looper letters, 13 selfloop transitions, 19 changer transitions 0/42 dead transitions. [2021-06-10 21:03:00,805 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 50 places, 42 transitions, 375 flow [2021-06-10 21:03:00,806 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-06-10 21:03:00,806 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-06-10 21:03:00,807 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 730 transitions. [2021-06-10 21:03:00,808 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7373737373737373 [2021-06-10 21:03:00,808 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 730 transitions. [2021-06-10 21:03:00,808 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 730 transitions. [2021-06-10 21:03:00,808 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-10 21:03:00,808 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 730 transitions. [2021-06-10 21:03:00,810 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 121.66666666666667) internal successors, (730), 6 states have internal predecessors, (730), 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) [2021-06-10 21:03:00,812 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 165.0) internal successors, (1155), 7 states have internal predecessors, (1155), 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) [2021-06-10 21:03:00,812 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 165.0) internal successors, (1155), 7 states have internal predecessors, (1155), 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) [2021-06-10 21:03:00,812 INFO L185 Difference]: Start difference. First operand has 45 places, 37 transitions, 269 flow. Second operand 6 states and 730 transitions. [2021-06-10 21:03:00,812 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 50 places, 42 transitions, 375 flow [2021-06-10 21:03:00,815 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 47 places, 42 transitions, 358 flow, removed 2 selfloop flow, removed 3 redundant places. [2021-06-10 21:03:00,816 INFO L241 Difference]: Finished difference. Result has 48 places, 39 transitions, 330 flow [2021-06-10 21:03:00,816 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=165, PETRI_DIFFERENCE_MINUEND_FLOW=252, PETRI_DIFFERENCE_MINUEND_PLACES=42, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=37, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=17, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=18, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=330, PETRI_PLACES=48, PETRI_TRANSITIONS=39} [2021-06-10 21:03:00,816 INFO L343 CegarLoopForPetriNet]: 27 programPoint places, 21 predicate places. [2021-06-10 21:03:00,816 INFO L480 AbstractCegarLoop]: Abstraction has has 48 places, 39 transitions, 330 flow [2021-06-10 21:03:00,817 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 119.83333333333333) internal successors, (719), 6 states have internal predecessors, (719), 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) [2021-06-10 21:03:00,817 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-10 21:03:00,817 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-10 21:03:00,817 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-06-10 21:03:00,817 INFO L428 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr1INUSE_VIOLATION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-10 21:03:00,817 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-10 21:03:00,818 INFO L82 PathProgramCache]: Analyzing trace with hash -2116960768, now seen corresponding path program 1 times [2021-06-10 21:03:00,818 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-10 21:03:00,818 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [165810166] [2021-06-10 21:03:00,818 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-10 21:03:00,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-10 21:03:00,876 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 21:03:00,877 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-10 21:03:00,880 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 21:03:00,880 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-10 21:03:00,886 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 21:03:00,887 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 21:03:00,887 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-10 21:03:00,887 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [165810166] [2021-06-10 21:03:00,888 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-10 21:03:00,889 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-06-10 21:03:00,889 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [342224578] [2021-06-10 21:03:00,889 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-06-10 21:03:00,889 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-10 21:03:00,890 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-06-10 21:03:00,890 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-06-10 21:03:00,891 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 127 out of 165 [2021-06-10 21:03:00,891 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 48 places, 39 transitions, 330 flow. Second operand has 4 states, 4 states have (on average 127.75) internal successors, (511), 4 states have internal predecessors, (511), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-10 21:03:00,891 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-10 21:03:00,891 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 127 of 165 [2021-06-10 21:03:00,891 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-10 21:03:00,931 INFO L129 PetriNetUnfolder]: 21/81 cut-off events. [2021-06-10 21:03:00,931 INFO L130 PetriNetUnfolder]: For 290/310 co-relation queries the response was YES. [2021-06-10 21:03:00,931 INFO L84 FinitePrefix]: Finished finitePrefix Result has 347 conditions, 81 events. 21/81 cut-off events. For 290/310 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 318 event pairs, 4 based on Foata normal form. 32/112 useless extension candidates. Maximal degree in co-relation 324. Up to 31 conditions per place. [2021-06-10 21:03:00,932 INFO L132 encePairwiseOnDemand]: 160/165 looper letters, 5 selfloop transitions, 8 changer transitions 2/39 dead transitions. [2021-06-10 21:03:00,932 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 52 places, 39 transitions, 317 flow [2021-06-10 21:03:00,933 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-06-10 21:03:00,933 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-06-10 21:03:00,934 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 649 transitions. [2021-06-10 21:03:00,935 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7866666666666666 [2021-06-10 21:03:00,935 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 649 transitions. [2021-06-10 21:03:00,935 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 649 transitions. [2021-06-10 21:03:00,935 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-10 21:03:00,936 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 649 transitions. [2021-06-10 21:03:00,937 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 129.8) internal successors, (649), 5 states have internal predecessors, (649), 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) [2021-06-10 21:03:00,939 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 165.0) internal successors, (990), 6 states have internal predecessors, (990), 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) [2021-06-10 21:03:00,940 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 165.0) internal successors, (990), 6 states have internal predecessors, (990), 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) [2021-06-10 21:03:00,940 INFO L185 Difference]: Start difference. First operand has 48 places, 39 transitions, 330 flow. Second operand 5 states and 649 transitions. [2021-06-10 21:03:00,940 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 52 places, 39 transitions, 317 flow [2021-06-10 21:03:00,942 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 45 places, 39 transitions, 266 flow, removed 11 selfloop flow, removed 7 redundant places. [2021-06-10 21:03:00,946 INFO L241 Difference]: Finished difference. Result has 48 places, 37 transitions, 272 flow [2021-06-10 21:03:00,946 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=165, PETRI_DIFFERENCE_MINUEND_FLOW=211, PETRI_DIFFERENCE_MINUEND_PLACES=41, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=31, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=26, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=272, PETRI_PLACES=48, PETRI_TRANSITIONS=37} [2021-06-10 21:03:00,946 INFO L343 CegarLoopForPetriNet]: 27 programPoint places, 21 predicate places. [2021-06-10 21:03:00,947 INFO L480 AbstractCegarLoop]: Abstraction has has 48 places, 37 transitions, 272 flow [2021-06-10 21:03:00,947 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 127.75) internal successors, (511), 4 states have internal predecessors, (511), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-10 21:03:00,947 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-10 21:03:00,947 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-10 21:03:00,947 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-06-10 21:03:00,947 INFO L428 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr1INUSE_VIOLATION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-10 21:03:00,948 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-10 21:03:00,948 INFO L82 PathProgramCache]: Analyzing trace with hash -819677455, now seen corresponding path program 1 times [2021-06-10 21:03:00,948 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-10 21:03:00,948 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [226353048] [2021-06-10 21:03:00,948 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-10 21:03:00,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-10 21:03:01,009 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 21:03:01,009 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-10 21:03:01,014 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 21:03:01,015 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-10 21:03:01,019 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 21:03:01,020 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-10 21:03:01,027 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 21:03:01,027 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 21:03:01,027 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-10 21:03:01,028 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [226353048] [2021-06-10 21:03:01,028 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-10 21:03:01,028 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-06-10 21:03:01,028 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1676319161] [2021-06-10 21:03:01,029 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-06-10 21:03:01,029 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-10 21:03:01,029 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-06-10 21:03:01,029 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-06-10 21:03:01,030 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 127 out of 165 [2021-06-10 21:03:01,031 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 48 places, 37 transitions, 272 flow. Second operand has 5 states, 5 states have (on average 127.8) internal successors, (639), 5 states have internal predecessors, (639), 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) [2021-06-10 21:03:01,031 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-10 21:03:01,031 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 127 of 165 [2021-06-10 21:03:01,031 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-10 21:03:01,084 INFO L129 PetriNetUnfolder]: 9/55 cut-off events. [2021-06-10 21:03:01,085 INFO L130 PetriNetUnfolder]: For 230/278 co-relation queries the response was YES. [2021-06-10 21:03:01,085 INFO L84 FinitePrefix]: Finished finitePrefix Result has 228 conditions, 55 events. 9/55 cut-off events. For 230/278 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 187 event pairs, 0 based on Foata normal form. 45/100 useless extension candidates. Maximal degree in co-relation 204. Up to 15 conditions per place. [2021-06-10 21:03:01,085 INFO L132 encePairwiseOnDemand]: 160/165 looper letters, 2 selfloop transitions, 11 changer transitions 2/38 dead transitions. [2021-06-10 21:03:01,085 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 54 places, 38 transitions, 297 flow [2021-06-10 21:03:01,086 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-06-10 21:03:01,086 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-06-10 21:03:01,088 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 904 transitions. [2021-06-10 21:03:01,088 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7826839826839826 [2021-06-10 21:03:01,088 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 904 transitions. [2021-06-10 21:03:01,089 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 904 transitions. [2021-06-10 21:03:01,089 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-10 21:03:01,089 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 904 transitions. [2021-06-10 21:03:01,091 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 129.14285714285714) internal successors, (904), 7 states have internal predecessors, (904), 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) [2021-06-10 21:03:01,093 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 165.0) internal successors, (1320), 8 states have internal predecessors, (1320), 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) [2021-06-10 21:03:01,093 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 165.0) internal successors, (1320), 8 states have internal predecessors, (1320), 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) [2021-06-10 21:03:01,093 INFO L185 Difference]: Start difference. First operand has 48 places, 37 transitions, 272 flow. Second operand 7 states and 904 transitions. [2021-06-10 21:03:01,093 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 54 places, 38 transitions, 297 flow [2021-06-10 21:03:01,095 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 52 places, 38 transitions, 278 flow, removed 7 selfloop flow, removed 2 redundant places. [2021-06-10 21:03:01,095 INFO L241 Difference]: Finished difference. Result has 55 places, 36 transitions, 278 flow [2021-06-10 21:03:01,096 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=165, PETRI_DIFFERENCE_MINUEND_FLOW=236, PETRI_DIFFERENCE_MINUEND_PLACES=46, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=35, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=24, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=278, PETRI_PLACES=55, PETRI_TRANSITIONS=36} [2021-06-10 21:03:01,096 INFO L343 CegarLoopForPetriNet]: 27 programPoint places, 28 predicate places. [2021-06-10 21:03:01,096 INFO L480 AbstractCegarLoop]: Abstraction has has 55 places, 36 transitions, 278 flow [2021-06-10 21:03:01,096 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 127.8) internal successors, (639), 5 states have internal predecessors, (639), 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) [2021-06-10 21:03:01,096 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-10 21:03:01,096 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-10 21:03:01,096 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-06-10 21:03:01,097 INFO L428 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr1INUSE_VIOLATION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-10 21:03:01,097 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-10 21:03:01,097 INFO L82 PathProgramCache]: Analyzing trace with hash 872648066, now seen corresponding path program 1 times [2021-06-10 21:03:01,097 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-10 21:03:01,097 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1679474579] [2021-06-10 21:03:01,097 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-10 21:03:01,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-10 21:03:01,157 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 21:03:01,158 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 21:03:01,158 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 21:03:01,158 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-10 21:03:01,161 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 21:03:01,162 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-10 21:03:01,165 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-10 21:03:01,165 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1679474579] [2021-06-10 21:03:01,165 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-10 21:03:01,165 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-06-10 21:03:01,166 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [291669439] [2021-06-10 21:03:01,166 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-06-10 21:03:01,166 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-10 21:03:01,167 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-06-10 21:03:01,168 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-06-10 21:03:01,168 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 127 out of 165 [2021-06-10 21:03:01,169 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 55 places, 36 transitions, 278 flow. Second operand has 4 states, 4 states have (on average 128.0) internal successors, (512), 4 states have internal predecessors, (512), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-10 21:03:01,169 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-10 21:03:01,169 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 127 of 165 [2021-06-10 21:03:01,169 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-10 21:03:01,196 INFO L129 PetriNetUnfolder]: 11/79 cut-off events. [2021-06-10 21:03:01,196 INFO L130 PetriNetUnfolder]: For 293/307 co-relation queries the response was YES. [2021-06-10 21:03:01,197 INFO L84 FinitePrefix]: Finished finitePrefix Result has 336 conditions, 79 events. 11/79 cut-off events. For 293/307 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 346 event pairs, 0 based on Foata normal form. 12/91 useless extension candidates. Maximal degree in co-relation 309. Up to 24 conditions per place. [2021-06-10 21:03:01,197 INFO L132 encePairwiseOnDemand]: 162/165 looper letters, 3 selfloop transitions, 1 changer transitions 12/37 dead transitions. [2021-06-10 21:03:01,197 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 57 places, 37 transitions, 290 flow [2021-06-10 21:03:01,198 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-10 21:03:01,198 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-06-10 21:03:01,199 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 514 transitions. [2021-06-10 21:03:01,199 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7787878787878788 [2021-06-10 21:03:01,199 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 514 transitions. [2021-06-10 21:03:01,199 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 514 transitions. [2021-06-10 21:03:01,200 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-10 21:03:01,200 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 514 transitions. [2021-06-10 21:03:01,202 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 128.5) internal successors, (514), 4 states have internal predecessors, (514), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-10 21:03:01,203 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 165.0) internal successors, (825), 5 states have internal predecessors, (825), 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) [2021-06-10 21:03:01,204 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 165.0) internal successors, (825), 5 states have internal predecessors, (825), 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) [2021-06-10 21:03:01,204 INFO L185 Difference]: Start difference. First operand has 55 places, 36 transitions, 278 flow. Second operand 4 states and 514 transitions. [2021-06-10 21:03:01,204 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 57 places, 37 transitions, 290 flow [2021-06-10 21:03:01,206 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 51 places, 37 transitions, 261 flow, removed 5 selfloop flow, removed 6 redundant places. [2021-06-10 21:03:01,207 INFO L241 Difference]: Finished difference. Result has 53 places, 25 transitions, 160 flow [2021-06-10 21:03:01,208 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=165, PETRI_DIFFERENCE_MINUEND_FLOW=249, PETRI_DIFFERENCE_MINUEND_PLACES=48, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=36, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=35, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=160, PETRI_PLACES=53, PETRI_TRANSITIONS=25} [2021-06-10 21:03:01,208 INFO L343 CegarLoopForPetriNet]: 27 programPoint places, 26 predicate places. [2021-06-10 21:03:01,208 INFO L480 AbstractCegarLoop]: Abstraction has has 53 places, 25 transitions, 160 flow [2021-06-10 21:03:01,208 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 128.0) internal successors, (512), 4 states have internal predecessors, (512), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-10 21:03:01,208 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-10 21:03:01,208 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-10 21:03:01,209 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-06-10 21:03:01,209 INFO L428 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr1INUSE_VIOLATION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-10 21:03:01,210 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-10 21:03:01,210 INFO L82 PathProgramCache]: Analyzing trace with hash -140899860, now seen corresponding path program 2 times [2021-06-10 21:03:01,210 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-10 21:03:01,210 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1221450474] [2021-06-10 21:03:01,210 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-10 21:03:01,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-06-10 21:03:01,257 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-06-10 21:03:01,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-06-10 21:03:01,326 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-06-10 21:03:01,363 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-06-10 21:03:01,363 INFO L634 BasicCegarLoop]: Counterexample might be feasible [2021-06-10 21:03:01,364 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-06-10 21:03:01,426 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.06 09:03:01 BasicIcfg [2021-06-10 21:03:01,426 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-06-10 21:03:01,427 INFO L168 Benchmark]: Toolchain (without parser) took 22964.07 ms. Allocated memory was 352.3 MB in the beginning and 671.1 MB in the end (delta: 318.8 MB). Free memory was 314.9 MB in the beginning and 369.5 MB in the end (delta: -54.6 MB). Peak memory consumption was 265.4 MB. Max. memory is 16.0 GB. [2021-06-10 21:03:01,427 INFO L168 Benchmark]: CDTParser took 0.12 ms. Allocated memory is still 352.3 MB. Free memory was 333.1 MB in the beginning and 333.0 MB in the end (delta: 70.3 kB). There was no memory consumed. Max. memory is 16.0 GB. [2021-06-10 21:03:01,427 INFO L168 Benchmark]: CACSL2BoogieTranslator took 445.71 ms. Allocated memory is still 352.3 MB. Free memory was 314.7 MB in the beginning and 310.8 MB in the end (delta: 3.9 MB). Peak memory consumption was 7.6 MB. Max. memory is 16.0 GB. [2021-06-10 21:03:01,428 INFO L168 Benchmark]: Boogie Procedure Inliner took 59.12 ms. Allocated memory is still 352.3 MB. Free memory was 310.8 MB in the beginning and 308.7 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-06-10 21:03:01,428 INFO L168 Benchmark]: Boogie Preprocessor took 54.31 ms. Allocated memory is still 352.3 MB. Free memory was 308.7 MB in the beginning and 306.6 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-06-10 21:03:01,428 INFO L168 Benchmark]: RCFGBuilder took 1645.23 ms. Allocated memory is still 352.3 MB. Free memory was 306.6 MB in the beginning and 263.4 MB in the end (delta: 43.3 MB). Peak memory consumption was 135.5 MB. Max. memory is 16.0 GB. [2021-06-10 21:03:01,428 INFO L168 Benchmark]: TraceAbstraction took 20752.28 ms. Allocated memory was 352.3 MB in the beginning and 671.1 MB in the end (delta: 318.8 MB). Free memory was 263.4 MB in the beginning and 369.5 MB in the end (delta: -106.2 MB). Peak memory consumption was 212.6 MB. Max. memory is 16.0 GB. [2021-06-10 21:03:01,429 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12 ms. Allocated memory is still 352.3 MB. Free memory was 333.1 MB in the beginning and 333.0 MB in the end (delta: 70.3 kB). There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 445.71 ms. Allocated memory is still 352.3 MB. Free memory was 314.7 MB in the beginning and 310.8 MB in the end (delta: 3.9 MB). Peak memory consumption was 7.6 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 59.12 ms. Allocated memory is still 352.3 MB. Free memory was 310.8 MB in the beginning and 308.7 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 54.31 ms. Allocated memory is still 352.3 MB. Free memory was 308.7 MB in the beginning and 306.6 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * RCFGBuilder took 1645.23 ms. Allocated memory is still 352.3 MB. Free memory was 306.6 MB in the beginning and 263.4 MB in the end (delta: 43.3 MB). Peak memory consumption was 135.5 MB. Max. memory is 16.0 GB. * TraceAbstraction took 20752.28 ms. Allocated memory was 352.3 MB in the beginning and 671.1 MB in the end (delta: 318.8 MB). Free memory was 263.4 MB in the beginning and 369.5 MB in the end (delta: -106.2 MB). Peak memory consumption was 212.6 MB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 18058.1ms, 87 PlacesBefore, 27 PlacesAfterwards, 82 TransitionsBefore, 22 TransitionsAfterwards, 1046 CoEnabledTransitionPairs, 7 FixpointIterations, 34 TrivialSequentialCompositions, 44 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 3 ConcurrentYvCompositions, 0 ChoiceCompositions, 81 TotalNumberOfCompositions, 2989 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1329, positive: 1208, positive conditional: 0, positive unconditional: 1208, negative: 121, negative conditional: 0, negative unconditional: 121, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 836, positive: 774, positive conditional: 0, positive unconditional: 774, negative: 62, negative conditional: 0, negative unconditional: 62, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 836, positive: 774, positive conditional: 0, positive unconditional: 774, negative: 62, negative conditional: 0, negative unconditional: 62, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 836, positive: 753, positive conditional: 0, positive unconditional: 753, negative: 83, negative conditional: 0, negative unconditional: 83, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 83, positive: 21, positive conditional: 0, positive unconditional: 21, negative: 62, negative conditional: 0, negative unconditional: 62, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 1512, positive: 109, positive conditional: 0, positive unconditional: 109, negative: 1403, negative conditional: 0, negative unconditional: 1403, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 1329, positive: 434, positive conditional: 0, positive unconditional: 434, negative: 59, negative conditional: 0, negative unconditional: 59, unknown: 836, unknown conditional: 0, unknown unconditional: 836] , Statistics on independence cache: Total cache size (in pairs): 1491, Positive cache size: 1429, Positive conditional cache size: 0, Positive unconditional cache size: 1429, Negative cache size: 62, Negative conditional cache size: 0, Negative unconditional cache size: 62 - CounterExampleResult [Line: 18]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L708] 0 int __unbuffered_cnt = 0; [L710] 0 int __unbuffered_p1_EAX = 0; [L712] 0 int __unbuffered_p1_EBX = 0; [L713] 0 _Bool main$tmp_guard0; [L714] 0 _Bool main$tmp_guard1; [L716] 0 int x = 0; [L718] 0 int y = 0; [L719] 0 _Bool y$flush_delayed; [L720] 0 int y$mem_tmp; [L721] 0 _Bool y$r_buff0_thd0; [L722] 0 _Bool y$r_buff0_thd1; [L723] 0 _Bool y$r_buff0_thd2; [L724] 0 _Bool y$r_buff1_thd0; [L725] 0 _Bool y$r_buff1_thd1; [L726] 0 _Bool y$r_buff1_thd2; [L727] 0 _Bool y$read_delayed; [L728] 0 int *y$read_delayed_var; [L729] 0 int y$w_buff0; [L730] 0 _Bool y$w_buff0_used; [L731] 0 int y$w_buff1; [L732] 0 _Bool y$w_buff1_used; [L734] 0 int z = 0; [L735] 0 _Bool weak$$choice0; [L736] 0 _Bool weak$$choice2; [L802] 0 pthread_t t1607; [L803] FCALL, FORK 0 pthread_create(&t1607, ((void *)0), P0, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=0, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, z=0] [L804] 0 pthread_t t1608; [L805] FCALL, FORK 0 pthread_create(&t1608, ((void *)0), P1, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=0, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, z=0] [L760] 2 y$w_buff1 = y$w_buff0 [L761] 2 y$w_buff0 = 2 [L762] 2 y$w_buff1_used = y$w_buff0_used [L763] 2 y$w_buff0_used = (_Bool)1 [L18] COND FALSE 2 !(!expression) [L765] 2 y$r_buff1_thd0 = y$r_buff0_thd0 [L766] 2 y$r_buff1_thd1 = y$r_buff0_thd1 [L767] 2 y$r_buff1_thd2 = y$r_buff0_thd2 [L768] 2 y$r_buff0_thd2 = (_Bool)1 VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=1, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=2, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0, z=0] [L771] 2 z = 1 [L774] 2 __unbuffered_p1_EAX = z VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=1, __unbuffered_p1_EBX=0, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=1, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=2, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0, z=1] [L777] 2 __unbuffered_p1_EBX = x VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=1, __unbuffered_p1_EBX=0, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=1, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=2, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0, z=1] [L740] 1 x = 1 VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=1, __unbuffered_p1_EBX=0, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=1, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=1, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=2, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0, z=1] [L743] 1 y = 1 VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=1, __unbuffered_p1_EBX=0, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=1, y=1, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=1, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=2, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0, z=1] [L746] EXPR 1 y$w_buff0_used && y$r_buff0_thd1 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd1 ? y$w_buff1 : y) [L746] EXPR 1 y$w_buff1_used && y$r_buff1_thd1 ? y$w_buff1 : y [L746] EXPR 1 y$w_buff0_used && y$r_buff0_thd1 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd1 ? y$w_buff1 : y) [L746] 1 y = y$w_buff0_used && y$r_buff0_thd1 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd1 ? y$w_buff1 : y) [L747] EXPR 1 y$w_buff0_used && y$r_buff0_thd1 ? (_Bool)0 : y$w_buff0_used [L747] 1 y$w_buff0_used = y$w_buff0_used && y$r_buff0_thd1 ? (_Bool)0 : y$w_buff0_used [L748] EXPR 1 y$w_buff0_used && y$r_buff0_thd1 || y$w_buff1_used && y$r_buff1_thd1 ? (_Bool)0 : y$w_buff1_used [L748] 1 y$w_buff1_used = y$w_buff0_used && y$r_buff0_thd1 || y$w_buff1_used && y$r_buff1_thd1 ? (_Bool)0 : y$w_buff1_used [L749] EXPR 1 y$w_buff0_used && y$r_buff0_thd1 ? (_Bool)0 : y$r_buff0_thd1 [L749] 1 y$r_buff0_thd1 = y$w_buff0_used && y$r_buff0_thd1 ? (_Bool)0 : y$r_buff0_thd1 [L750] EXPR 1 y$w_buff0_used && y$r_buff0_thd1 || y$w_buff1_used && y$r_buff1_thd1 ? (_Bool)0 : y$r_buff1_thd1 [L750] 1 y$r_buff1_thd1 = y$w_buff0_used && y$r_buff0_thd1 || y$w_buff1_used && y$r_buff1_thd1 ? (_Bool)0 : y$r_buff1_thd1 [L780] EXPR 2 y$w_buff0_used && y$r_buff0_thd2 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd2 ? y$w_buff1 : y) [L780] 2 y = y$w_buff0_used && y$r_buff0_thd2 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd2 ? y$w_buff1 : y) [L781] EXPR 2 y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : y$w_buff0_used [L781] 2 y$w_buff0_used = y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : y$w_buff0_used [L782] EXPR 2 y$w_buff0_used && y$r_buff0_thd2 || y$w_buff1_used && y$r_buff1_thd2 ? (_Bool)0 : y$w_buff1_used [L782] 2 y$w_buff1_used = y$w_buff0_used && y$r_buff0_thd2 || y$w_buff1_used && y$r_buff1_thd2 ? (_Bool)0 : y$w_buff1_used [L783] EXPR 2 y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : y$r_buff0_thd2 [L783] 2 y$r_buff0_thd2 = y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : y$r_buff0_thd2 [L784] EXPR 2 y$w_buff0_used && y$r_buff0_thd2 || y$w_buff1_used && y$r_buff1_thd2 ? (_Bool)0 : y$r_buff1_thd2 [L784] 2 y$r_buff1_thd2 = y$w_buff0_used && y$r_buff0_thd2 || y$w_buff1_used && y$r_buff1_thd2 ? (_Bool)0 : y$r_buff1_thd2 [L753] 1 __unbuffered_cnt = __unbuffered_cnt + 1 [L755] 1 return 0; [L787] 2 __unbuffered_cnt = __unbuffered_cnt + 1 [L789] 2 return 0; [L807] 0 main$tmp_guard0 = __unbuffered_cnt == 2 [L3] COND FALSE 0 !(!cond) [L811] EXPR 0 y$w_buff0_used && y$r_buff0_thd0 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd0 ? y$w_buff1 : y) [L811] EXPR 0 y$w_buff1_used && y$r_buff1_thd0 ? y$w_buff1 : y [L811] EXPR 0 y$w_buff0_used && y$r_buff0_thd0 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd0 ? y$w_buff1 : y) [L811] 0 y = y$w_buff0_used && y$r_buff0_thd0 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd0 ? y$w_buff1 : y) [L812] EXPR 0 y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$w_buff0_used [L812] 0 y$w_buff0_used = y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$w_buff0_used [L813] EXPR 0 y$w_buff0_used && y$r_buff0_thd0 || y$w_buff1_used && y$r_buff1_thd0 ? (_Bool)0 : y$w_buff1_used [L813] 0 y$w_buff1_used = y$w_buff0_used && y$r_buff0_thd0 || y$w_buff1_used && y$r_buff1_thd0 ? (_Bool)0 : y$w_buff1_used [L814] EXPR 0 y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$r_buff0_thd0 [L814] 0 y$r_buff0_thd0 = y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$r_buff0_thd0 [L815] EXPR 0 y$w_buff0_used && y$r_buff0_thd0 || y$w_buff1_used && y$r_buff1_thd0 ? (_Bool)0 : y$r_buff1_thd0 [L815] 0 y$r_buff1_thd0 = y$w_buff0_used && y$r_buff0_thd0 || y$w_buff1_used && y$r_buff1_thd0 ? (_Bool)0 : y$r_buff1_thd0 [L818] 0 weak$$choice0 = __VERIFIER_nondet_bool() [L819] 0 weak$$choice2 = __VERIFIER_nondet_bool() [L820] 0 y$flush_delayed = weak$$choice2 [L821] 0 y$mem_tmp = y [L822] EXPR 0 !y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y : (y$w_buff0_used && y$r_buff0_thd0 ? y$w_buff0 : y$w_buff1) [L822] 0 y = !y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y : (y$w_buff0_used && y$r_buff0_thd0 ? y$w_buff0 : y$w_buff1) [L823] EXPR 0 weak$$choice2 ? y$w_buff0 : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$w_buff0 : (y$w_buff0_used && y$r_buff0_thd0 ? y$w_buff0 : y$w_buff0)) [L823] 0 y$w_buff0 = weak$$choice2 ? y$w_buff0 : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$w_buff0 : (y$w_buff0_used && y$r_buff0_thd0 ? y$w_buff0 : y$w_buff0)) [L824] EXPR 0 weak$$choice2 ? y$w_buff1 : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$w_buff1 : (y$w_buff0_used && y$r_buff0_thd0 ? y$w_buff1 : y$w_buff1)) [L824] 0 y$w_buff1 = weak$$choice2 ? y$w_buff1 : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$w_buff1 : (y$w_buff0_used && y$r_buff0_thd0 ? y$w_buff1 : y$w_buff1)) [L825] EXPR 0 weak$$choice2 ? y$w_buff0_used : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$w_buff0_used : (y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$w_buff0_used)) [L825] 0 y$w_buff0_used = weak$$choice2 ? y$w_buff0_used : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$w_buff0_used : (y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$w_buff0_used)) [L826] EXPR 0 weak$$choice2 ? y$w_buff1_used : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$w_buff1_used : (y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : (_Bool)0)) [L826] 0 y$w_buff1_used = weak$$choice2 ? y$w_buff1_used : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$w_buff1_used : (y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : (_Bool)0)) [L827] EXPR 0 weak$$choice2 ? y$r_buff0_thd0 : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$r_buff0_thd0 : (y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$r_buff0_thd0)) [L827] 0 y$r_buff0_thd0 = weak$$choice2 ? y$r_buff0_thd0 : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$r_buff0_thd0 : (y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$r_buff0_thd0)) [L828] EXPR 0 weak$$choice2 ? y$r_buff1_thd0 : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$r_buff1_thd0 : (y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : (_Bool)0)) [L828] 0 y$r_buff1_thd0 = weak$$choice2 ? y$r_buff1_thd0 : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$r_buff1_thd0 : (y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : (_Bool)0)) [L829] 0 main$tmp_guard1 = !(y == 2 && __unbuffered_p1_EAX == 1 && __unbuffered_p1_EBX == 0) [L830] EXPR 0 y$flush_delayed ? y$mem_tmp : y [L830] 0 y = y$flush_delayed ? y$mem_tmp : y [L831] 0 y$flush_delayed = (_Bool)0 [L18] COND TRUE 0 !expression [L18] 0 reach_error() VAL [\result={0:0}, __unbuffered_cnt=2, __unbuffered_p1_EAX=1, __unbuffered_p1_EBX=0, arg={0:0}, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, weak$$choice0=50, weak$$choice2=255, x=1, y=2, y$flush_delayed=0, y$mem_tmp=2, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=1, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=2, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, z=1] - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 83 locations, 2 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 2.5ms, RemoveRedundantFlowTime: 0.0ms, RemoveRedundantFlowUnfoldingTime: 0.0ms, BackfoldingTime: 0.0ms, BackfoldingUnfoldingTime: 0.0ms, FlowIncreaseByBackfolding: 0, BasicCegarLoop: VerificationResult: UNSAFE, OverallTime: 20601.6ms, OverallIterations: 11, TraceHistogramMax: 1, EmptinessCheckTime: 0.0ms, AutomataDifference: 977.3ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 18124.7ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 32 SDtfs, 23 SDslu, 19 SDs, 0 SdLazy, 234 SolverSat, 60 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 347.2ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 42 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 468.1ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=330occurred in iteration=7, InterpolantAutomatonStates: 49, 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: 34.4ms SsaConstructionTime, 362.3ms SatisfiabilityAnalysisTime, 821.6ms InterpolantComputationTime, 120 NumberOfCodeBlocks, 120 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 94 ConstructedInterpolants, 0 QuantifiedInterpolants, 786 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 10 InterpolantComputations, 10 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...