/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-NoLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-wmm/safe027_pso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-0e22065b97d0a1f8b3904e080cebe0f05e88d2b7-0e22065 [2021-06-10 12:29:17,236 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-06-10 12:29:17,239 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-06-10 12:29:17,276 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-06-10 12:29:17,276 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-06-10 12:29:17,279 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-06-10 12:29:17,281 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-06-10 12:29:17,286 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-06-10 12:29:17,288 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-06-10 12:29:17,292 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-06-10 12:29:17,292 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-06-10 12:29:17,293 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-06-10 12:29:17,294 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-06-10 12:29:17,295 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-06-10 12:29:17,297 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-06-10 12:29:17,298 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-06-10 12:29:17,300 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-06-10 12:29:17,301 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-06-10 12:29:17,303 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-06-10 12:29:17,308 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-06-10 12:29:17,309 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-06-10 12:29:17,310 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-06-10 12:29:17,311 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-06-10 12:29:17,312 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-06-10 12:29:17,318 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-06-10 12:29:17,321 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-06-10 12:29:17,322 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-06-10 12:29:17,323 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-06-10 12:29:17,324 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-06-10 12:29:17,325 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-06-10 12:29:17,325 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-06-10 12:29:17,325 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-06-10 12:29:17,325 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-06-10 12:29:17,326 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-06-10 12:29:17,326 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-06-10 12:29:17,327 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-06-10 12:29:17,330 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-NoLbe.epf [2021-06-10 12:29:17,364 INFO L113 SettingsManager]: Loading preferences was successful [2021-06-10 12:29:17,364 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-06-10 12:29:17,367 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-06-10 12:29:17,367 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-06-10 12:29:17,367 INFO L138 SettingsManager]: * Use SBE=true [2021-06-10 12:29:17,367 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-06-10 12:29:17,367 INFO L138 SettingsManager]: * sizeof long=4 [2021-06-10 12:29:17,367 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-06-10 12:29:17,367 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-06-10 12:29:17,368 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-06-10 12:29:17,368 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-06-10 12:29:17,368 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-06-10 12:29:17,369 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-06-10 12:29:17,369 INFO L138 SettingsManager]: * sizeof long double=12 [2021-06-10 12:29:17,369 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-06-10 12:29:17,369 INFO L138 SettingsManager]: * Use constant arrays=true [2021-06-10 12:29:17,369 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-06-10 12:29:17,369 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-06-10 12:29:17,369 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-06-10 12:29:17,369 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-06-10 12:29:17,370 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-06-10 12:29:17,370 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-06-10 12:29:17,370 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-06-10 12:29:17,370 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-06-10 12:29:17,370 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-06-10 12:29:17,370 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-06-10 12:29:17,370 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-06-10 12:29:17,371 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-06-10 12:29:17,371 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-06-10 12:29:17,371 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-06-10 12:29:17,693 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-06-10 12:29:17,709 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-06-10 12:29:17,712 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-06-10 12:29:17,713 INFO L271 PluginConnector]: Initializing CDTParser... [2021-06-10 12:29:17,713 INFO L275 PluginConnector]: CDTParser initialized [2021-06-10 12:29:17,714 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe027_pso.oepc.i [2021-06-10 12:29:17,786 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/037c5b247/47980e1fdd6246879aa1863d1dbd576c/FLAG2e8164950 [2021-06-10 12:29:18,305 INFO L306 CDTParser]: Found 1 translation units. [2021-06-10 12:29:18,306 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe027_pso.oepc.i [2021-06-10 12:29:18,317 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/037c5b247/47980e1fdd6246879aa1863d1dbd576c/FLAG2e8164950 [2021-06-10 12:29:18,800 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/037c5b247/47980e1fdd6246879aa1863d1dbd576c [2021-06-10 12:29:18,802 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-06-10 12:29:18,803 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-06-10 12:29:18,806 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-06-10 12:29:18,806 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-06-10 12:29:18,809 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-06-10 12:29:18,809 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.06 12:29:18" (1/1) ... [2021-06-10 12:29:18,811 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2a77e176 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.06 12:29:18, skipping insertion in model container [2021-06-10 12:29:18,811 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.06 12:29:18" (1/1) ... [2021-06-10 12:29:18,817 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-06-10 12:29:18,858 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-06-10 12:29:18,998 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/safe027_pso.oepc.i[950,963] [2021-06-10 12:29:19,157 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-06-10 12:29:19,166 INFO L203 MainTranslator]: Completed pre-run [2021-06-10 12:29:19,177 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/safe027_pso.oepc.i[950,963] [2021-06-10 12:29:19,208 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-06-10 12:29:19,268 INFO L208 MainTranslator]: Completed translation [2021-06-10 12:29:19,269 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.06 12:29:19 WrapperNode [2021-06-10 12:29:19,269 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-06-10 12:29:19,270 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-06-10 12:29:19,270 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-06-10 12:29:19,270 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-06-10 12:29:19,276 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.06 12:29:19" (1/1) ... [2021-06-10 12:29:19,288 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.06 12:29:19" (1/1) ... [2021-06-10 12:29:19,304 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-06-10 12:29:19,304 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-06-10 12:29:19,304 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-06-10 12:29:19,305 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-06-10 12:29:19,310 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.06 12:29:19" (1/1) ... [2021-06-10 12:29:19,310 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.06 12:29:19" (1/1) ... [2021-06-10 12:29:19,313 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.06 12:29:19" (1/1) ... [2021-06-10 12:29:19,313 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.06 12:29:19" (1/1) ... [2021-06-10 12:29:19,318 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.06 12:29:19" (1/1) ... [2021-06-10 12:29:19,319 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.06 12:29:19" (1/1) ... [2021-06-10 12:29:19,321 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.06 12:29:19" (1/1) ... [2021-06-10 12:29:19,323 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-06-10 12:29:19,324 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-06-10 12:29:19,324 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-06-10 12:29:19,324 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-06-10 12:29:19,325 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.06 12:29:19" (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 12:29:19,384 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-06-10 12:29:19,385 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-06-10 12:29:19,385 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-06-10 12:29:19,386 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-06-10 12:29:19,386 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2021-06-10 12:29:19,386 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2021-06-10 12:29:19,387 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2021-06-10 12:29:19,387 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2021-06-10 12:29:19,387 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2021-06-10 12:29:19,387 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2021-06-10 12:29:19,387 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2021-06-10 12:29:19,387 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2021-06-10 12:29:19,388 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-06-10 12:29:19,388 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-06-10 12:29:19,388 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-06-10 12:29:19,388 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-06-10 12:29:19,389 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 12:29:19,728 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-06-10 12:29:19,729 INFO L299 CfgBuilder]: Removed 8 assume(true) statements. [2021-06-10 12:29:19,730 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.06 12:29:19 BoogieIcfgContainer [2021-06-10 12:29:19,730 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-06-10 12:29:19,732 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-06-10 12:29:19,732 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-06-10 12:29:19,735 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-06-10 12:29:19,735 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.06 12:29:18" (1/3) ... [2021-06-10 12:29:19,735 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@ebd32a1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.06 12:29:19, skipping insertion in model container [2021-06-10 12:29:19,735 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.06 12:29:19" (2/3) ... [2021-06-10 12:29:19,736 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@ebd32a1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.06 12:29:19, skipping insertion in model container [2021-06-10 12:29:19,736 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.06 12:29:19" (3/3) ... [2021-06-10 12:29:19,737 INFO L111 eAbstractionObserver]: Analyzing ICFG safe027_pso.oepc.i [2021-06-10 12:29:19,742 INFO L149 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-06-10 12:29:19,745 INFO L161 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-06-10 12:29:19,746 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-06-10 12:29:19,771 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 12:29:19,771 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 12:29:19,772 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 12:29:19,772 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 12:29:19,772 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 12:29:19,772 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 12:29:19,772 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 12:29:19,772 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 12:29:19,773 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 12:29:19,773 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 12:29:19,773 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 12:29:19,773 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 12:29:19,774 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 12:29:19,774 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 12:29:19,774 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 12:29:19,774 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 12:29:19,774 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 12:29:19,774 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 12:29:19,774 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 12:29:19,774 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 12:29:19,775 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 12:29:19,775 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 12:29:19,775 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 12:29:19,775 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 12:29:19,775 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 12:29:19,776 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 12:29:19,776 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 12:29:19,776 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 12:29:19,776 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 12:29:19,777 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 12:29:19,777 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 12:29:19,777 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 12:29:19,777 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 12:29:19,777 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 12:29:19,778 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 12:29:19,778 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 12:29:19,778 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 12:29:19,778 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 12:29:19,778 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 12:29:19,778 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 12:29:19,778 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 12:29:19,779 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 12:29:19,779 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 12:29:19,779 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 12:29:19,779 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 12:29:19,779 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 12:29:19,779 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 12:29:19,779 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 12:29:19,781 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 12:29:19,782 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 12:29:19,782 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 12:29:19,782 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 12:29:19,786 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 12:29:19,786 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 12:29:19,786 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 12:29:19,786 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 12:29:19,788 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 12:29:19,788 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 12:29:19,788 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 12:29:19,788 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 12:29:19,790 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 12:29:19,790 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 12:29:19,790 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 12:29:19,790 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 12:29:19,791 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-06-10 12:29:19,807 INFO L253 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2021-06-10 12:29:19,825 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-06-10 12:29:19,825 INFO L377 AbstractCegarLoop]: Hoare is false [2021-06-10 12:29:19,825 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-06-10 12:29:19,825 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-06-10 12:29:19,825 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-06-10 12:29:19,826 INFO L381 AbstractCegarLoop]: Difference is false [2021-06-10 12:29:19,826 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-06-10 12:29:19,826 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-06-10 12:29:19,835 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 98 places, 87 transitions, 194 flow [2021-06-10 12:29:19,868 INFO L129 PetriNetUnfolder]: 2/83 cut-off events. [2021-06-10 12:29:19,869 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-06-10 12:29:19,872 INFO L84 FinitePrefix]: Finished finitePrefix Result has 96 conditions, 83 events. 2/83 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 64 event pairs, 0 based on Foata normal form. 0/80 useless extension candidates. Maximal degree in co-relation 68. Up to 2 conditions per place. [2021-06-10 12:29:19,872 INFO L82 GeneralOperation]: Start removeDead. Operand has 98 places, 87 transitions, 194 flow [2021-06-10 12:29:19,876 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 81 places, 69 transitions, 150 flow [2021-06-10 12:29:19,892 INFO L129 PetriNetUnfolder]: 1/68 cut-off events. [2021-06-10 12:29:19,892 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-06-10 12:29:19,892 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-10 12:29:19,893 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-10 12:29:19,893 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-10 12:29:19,898 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-10 12:29:19,898 INFO L82 PathProgramCache]: Analyzing trace with hash -1468949887, now seen corresponding path program 1 times [2021-06-10 12:29:19,905 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-10 12:29:19,905 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [936427455] [2021-06-10 12:29:19,906 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-10 12:29:20,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-10 12:29:20,194 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:29:20,195 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 12:29:20,195 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:29:20,196 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-10 12:29:20,210 INFO L142 QuantifierPusher]: treesize reduction 3, result has 85.0 percent of original size [2021-06-10 12:29:20,211 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-10 12:29:20,231 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-06-10 12:29:20,235 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-06-10 12:29:20,255 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:29:20,257 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-10 12:29:20,270 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:29:20,277 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-10 12:29:20,289 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:29:20,290 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 12:29:20,294 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 12:29:20,294 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [936427455] [2021-06-10 12:29:20,295 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-10 12:29:20,295 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-06-10 12:29:20,296 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [896687102] [2021-06-10 12:29:20,304 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-06-10 12:29:20,304 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-10 12:29:20,315 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-06-10 12:29:20,316 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-06-10 12:29:20,323 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 69 out of 87 [2021-06-10 12:29:20,329 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 81 places, 69 transitions, 150 flow. Second operand has 7 states, 7 states have (on average 70.42857142857143) internal successors, (493), 7 states have internal predecessors, (493), 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 12:29:20,329 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-10 12:29:20,329 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 69 of 87 [2021-06-10 12:29:20,331 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-10 12:29:20,585 INFO L129 PetriNetUnfolder]: 81/243 cut-off events. [2021-06-10 12:29:20,585 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-06-10 12:29:20,588 INFO L84 FinitePrefix]: Finished finitePrefix Result has 417 conditions, 243 events. 81/243 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 23. Compared 877 event pairs, 15 based on Foata normal form. 11/244 useless extension candidates. Maximal degree in co-relation 383. Up to 77 conditions per place. [2021-06-10 12:29:20,591 INFO L132 encePairwiseOnDemand]: 78/87 looper letters, 12 selfloop transitions, 4 changer transitions 25/95 dead transitions. [2021-06-10 12:29:20,591 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 90 places, 95 transitions, 284 flow [2021-06-10 12:29:20,591 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-10 12:29:20,593 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-06-10 12:29:20,605 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 735 transitions. [2021-06-10 12:29:20,610 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8448275862068966 [2021-06-10 12:29:20,610 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 735 transitions. [2021-06-10 12:29:20,611 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 735 transitions. [2021-06-10 12:29:20,614 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-10 12:29:20,616 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 735 transitions. [2021-06-10 12:29:20,622 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 73.5) internal successors, (735), 10 states have internal predecessors, (735), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-10 12:29:20,630 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 87.0) internal successors, (957), 11 states have internal predecessors, (957), 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 12:29:20,631 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 87.0) internal successors, (957), 11 states have internal predecessors, (957), 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 12:29:20,632 INFO L185 Difference]: Start difference. First operand has 81 places, 69 transitions, 150 flow. Second operand 10 states and 735 transitions. [2021-06-10 12:29:20,633 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 90 places, 95 transitions, 284 flow [2021-06-10 12:29:20,639 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 86 places, 95 transitions, 280 flow, removed 0 selfloop flow, removed 4 redundant places. [2021-06-10 12:29:20,646 INFO L241 Difference]: Finished difference. Result has 93 places, 68 transitions, 168 flow [2021-06-10 12:29:20,648 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=87, PETRI_DIFFERENCE_MINUEND_FLOW=144, PETRI_DIFFERENCE_MINUEND_PLACES=77, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=68, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=64, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=168, PETRI_PLACES=93, PETRI_TRANSITIONS=68} [2021-06-10 12:29:20,649 INFO L343 CegarLoopForPetriNet]: 81 programPoint places, 12 predicate places. [2021-06-10 12:29:20,650 INFO L480 AbstractCegarLoop]: Abstraction has has 93 places, 68 transitions, 168 flow [2021-06-10 12:29:20,650 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 70.42857142857143) internal successors, (493), 7 states have internal predecessors, (493), 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 12:29:20,651 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-10 12:29:20,651 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-10 12:29:20,651 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-06-10 12:29:20,651 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-10 12:29:20,652 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-10 12:29:20,652 INFO L82 PathProgramCache]: Analyzing trace with hash 466065250, now seen corresponding path program 1 times [2021-06-10 12:29:20,652 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-10 12:29:20,653 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [662724996] [2021-06-10 12:29:20,653 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-10 12:29:20,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-10 12:29:20,775 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:29:20,775 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 12:29:20,776 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:29:20,776 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-10 12:29:20,786 INFO L142 QuantifierPusher]: treesize reduction 3, result has 85.0 percent of original size [2021-06-10 12:29:20,791 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-10 12:29:20,801 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-06-10 12:29:20,803 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-06-10 12:29:20,824 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:29:20,825 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-10 12:29:20,834 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:29:20,835 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-10 12:29:20,843 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:29:20,843 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 12:29:20,844 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 12:29:20,844 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [662724996] [2021-06-10 12:29:20,844 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-10 12:29:20,845 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-06-10 12:29:20,845 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1791164078] [2021-06-10 12:29:20,846 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-06-10 12:29:20,846 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-10 12:29:20,847 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-06-10 12:29:20,847 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-06-10 12:29:20,848 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 69 out of 87 [2021-06-10 12:29:20,849 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 93 places, 68 transitions, 168 flow. Second operand has 7 states, 7 states have (on average 70.57142857142857) internal successors, (494), 7 states have internal predecessors, (494), 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 12:29:20,849 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-10 12:29:20,849 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 69 of 87 [2021-06-10 12:29:20,849 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-10 12:29:21,002 INFO L129 PetriNetUnfolder]: 48/180 cut-off events. [2021-06-10 12:29:21,002 INFO L130 PetriNetUnfolder]: For 52/55 co-relation queries the response was YES. [2021-06-10 12:29:21,005 INFO L84 FinitePrefix]: Finished finitePrefix Result has 366 conditions, 180 events. 48/180 cut-off events. For 52/55 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 522 event pairs, 10 based on Foata normal form. 6/180 useless extension candidates. Maximal degree in co-relation 328. Up to 51 conditions per place. [2021-06-10 12:29:21,006 INFO L132 encePairwiseOnDemand]: 81/87 looper letters, 14 selfloop transitions, 2 changer transitions 19/89 dead transitions. [2021-06-10 12:29:21,006 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 95 places, 89 transitions, 301 flow [2021-06-10 12:29:21,007 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-10 12:29:21,007 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-06-10 12:29:21,009 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 658 transitions. [2021-06-10 12:29:21,009 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8403575989782887 [2021-06-10 12:29:21,009 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 658 transitions. [2021-06-10 12:29:21,009 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 658 transitions. [2021-06-10 12:29:21,010 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-10 12:29:21,010 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 658 transitions. [2021-06-10 12:29:21,011 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 73.11111111111111) internal successors, (658), 9 states have internal predecessors, (658), 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 12:29:21,013 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 87.0) internal successors, (870), 10 states have internal predecessors, (870), 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 12:29:21,013 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 87.0) internal successors, (870), 10 states have internal predecessors, (870), 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 12:29:21,013 INFO L185 Difference]: Start difference. First operand has 93 places, 68 transitions, 168 flow. Second operand 9 states and 658 transitions. [2021-06-10 12:29:21,013 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 95 places, 89 transitions, 301 flow [2021-06-10 12:29:21,018 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 86 places, 89 transitions, 263 flow, removed 14 selfloop flow, removed 9 redundant places. [2021-06-10 12:29:21,020 INFO L241 Difference]: Finished difference. Result has 93 places, 68 transitions, 168 flow [2021-06-10 12:29:21,021 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=87, PETRI_DIFFERENCE_MINUEND_FLOW=148, PETRI_DIFFERENCE_MINUEND_PLACES=78, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=68, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=66, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=168, PETRI_PLACES=93, PETRI_TRANSITIONS=68} [2021-06-10 12:29:21,022 INFO L343 CegarLoopForPetriNet]: 81 programPoint places, 12 predicate places. [2021-06-10 12:29:21,022 INFO L480 AbstractCegarLoop]: Abstraction has has 93 places, 68 transitions, 168 flow [2021-06-10 12:29:21,022 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 70.57142857142857) internal successors, (494), 7 states have internal predecessors, (494), 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 12:29:21,022 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-10 12:29:21,022 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-10 12:29:21,022 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-06-10 12:29:21,023 INFO L428 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-10 12:29:21,032 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-10 12:29:21,032 INFO L82 PathProgramCache]: Analyzing trace with hash 671129251, now seen corresponding path program 1 times [2021-06-10 12:29:21,032 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-10 12:29:21,032 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1419540606] [2021-06-10 12:29:21,033 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-10 12:29:21,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-10 12:29:21,105 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:29:21,105 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 12:29:21,106 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:29:21,106 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-10 12:29:21,109 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:29:21,109 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-10 12:29:21,114 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-06-10 12:29:21,115 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-06-10 12:29:21,137 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:29:21,138 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-10 12:29:21,155 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:29:21,161 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-10 12:29:21,170 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:29:21,170 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 12:29:21,172 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 12:29:21,172 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1419540606] [2021-06-10 12:29:21,172 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-10 12:29:21,172 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-06-10 12:29:21,172 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1968644165] [2021-06-10 12:29:21,173 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-06-10 12:29:21,173 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-10 12:29:21,173 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-06-10 12:29:21,173 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-06-10 12:29:21,175 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 72 out of 87 [2021-06-10 12:29:21,176 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 93 places, 68 transitions, 168 flow. Second operand has 7 states, 7 states have (on average 73.28571428571429) internal successors, (513), 7 states have internal predecessors, (513), 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 12:29:21,176 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-10 12:29:21,176 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 72 of 87 [2021-06-10 12:29:21,176 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-10 12:29:21,309 INFO L129 PetriNetUnfolder]: 25/141 cut-off events. [2021-06-10 12:29:21,309 INFO L130 PetriNetUnfolder]: For 38/62 co-relation queries the response was YES. [2021-06-10 12:29:21,310 INFO L84 FinitePrefix]: Finished finitePrefix Result has 270 conditions, 141 events. 25/141 cut-off events. For 38/62 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 374 event pairs, 1 based on Foata normal form. 4/138 useless extension candidates. Maximal degree in co-relation 247. Up to 19 conditions per place. [2021-06-10 12:29:21,310 INFO L132 encePairwiseOnDemand]: 79/87 looper letters, 9 selfloop transitions, 4 changer transitions 18/88 dead transitions. [2021-06-10 12:29:21,310 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 96 places, 88 transitions, 295 flow [2021-06-10 12:29:21,311 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-10 12:29:21,311 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-06-10 12:29:21,312 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 753 transitions. [2021-06-10 12:29:21,313 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8655172413793103 [2021-06-10 12:29:21,313 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 753 transitions. [2021-06-10 12:29:21,313 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 753 transitions. [2021-06-10 12:29:21,313 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-10 12:29:21,313 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 753 transitions. [2021-06-10 12:29:21,315 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 75.3) internal successors, (753), 10 states have internal predecessors, (753), 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 12:29:21,316 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 87.0) internal successors, (957), 11 states have internal predecessors, (957), 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 12:29:21,317 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 87.0) internal successors, (957), 11 states have internal predecessors, (957), 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 12:29:21,317 INFO L185 Difference]: Start difference. First operand has 93 places, 68 transitions, 168 flow. Second operand 10 states and 753 transitions. [2021-06-10 12:29:21,317 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 96 places, 88 transitions, 295 flow [2021-06-10 12:29:21,318 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 88 places, 88 transitions, 263 flow, removed 14 selfloop flow, removed 8 redundant places. [2021-06-10 12:29:21,320 INFO L241 Difference]: Finished difference. Result has 96 places, 68 transitions, 182 flow [2021-06-10 12:29:21,320 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=87, PETRI_DIFFERENCE_MINUEND_FLOW=152, PETRI_DIFFERENCE_MINUEND_PLACES=79, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=68, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=64, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=182, PETRI_PLACES=96, PETRI_TRANSITIONS=68} [2021-06-10 12:29:21,320 INFO L343 CegarLoopForPetriNet]: 81 programPoint places, 15 predicate places. [2021-06-10 12:29:21,320 INFO L480 AbstractCegarLoop]: Abstraction has has 96 places, 68 transitions, 182 flow [2021-06-10 12:29:21,320 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 73.28571428571429) internal successors, (513), 7 states have internal predecessors, (513), 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 12:29:21,320 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-10 12:29:21,321 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-10 12:29:21,321 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-06-10 12:29:21,321 INFO L428 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-10 12:29:21,321 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-10 12:29:21,321 INFO L82 PathProgramCache]: Analyzing trace with hash -370196350, now seen corresponding path program 1 times [2021-06-10 12:29:21,321 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-10 12:29:21,322 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1145404371] [2021-06-10 12:29:21,322 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-10 12:29:21,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-10 12:29:21,358 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:29:21,359 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 12:29:21,359 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:29:21,360 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-10 12:29:21,363 INFO L142 QuantifierPusher]: treesize reduction 3, result has 85.0 percent of original size [2021-06-10 12:29:21,364 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-10 12:29:21,373 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-06-10 12:29:21,373 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-06-10 12:29:21,389 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:29:21,389 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-10 12:29:21,398 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:29:21,398 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-10 12:29:21,408 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:29:21,408 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 12:29:21,409 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-10 12:29:21,409 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1145404371] [2021-06-10 12:29:21,409 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-10 12:29:21,409 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-06-10 12:29:21,409 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [816504469] [2021-06-10 12:29:21,410 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-06-10 12:29:21,410 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-10 12:29:21,410 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-06-10 12:29:21,410 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-06-10 12:29:21,411 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 67 out of 87 [2021-06-10 12:29:21,412 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 96 places, 68 transitions, 182 flow. Second operand has 7 states, 7 states have (on average 68.85714285714286) internal successors, (482), 7 states have internal predecessors, (482), 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 12:29:21,412 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-10 12:29:21,412 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 67 of 87 [2021-06-10 12:29:21,412 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-10 12:29:21,757 INFO L129 PetriNetUnfolder]: 135/418 cut-off events. [2021-06-10 12:29:21,758 INFO L130 PetriNetUnfolder]: For 250/321 co-relation queries the response was YES. [2021-06-10 12:29:21,760 INFO L84 FinitePrefix]: Finished finitePrefix Result has 850 conditions, 418 events. 135/418 cut-off events. For 250/321 co-relation queries the response was YES. Maximal size of possible extension queue 38. Compared 2062 event pairs, 7 based on Foata normal form. 12/421 useless extension candidates. Maximal degree in co-relation 805. Up to 89 conditions per place. [2021-06-10 12:29:21,762 INFO L132 encePairwiseOnDemand]: 73/87 looper letters, 18 selfloop transitions, 14 changer transitions 44/128 dead transitions. [2021-06-10 12:29:21,762 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 106 places, 128 transitions, 535 flow [2021-06-10 12:29:21,762 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-10 12:29:21,762 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2021-06-10 12:29:21,765 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 1219 transitions. [2021-06-10 12:29:21,765 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8242055442866801 [2021-06-10 12:29:21,766 INFO L72 ComplementDD]: Start complementDD. Operand 17 states and 1219 transitions. [2021-06-10 12:29:21,766 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 1219 transitions. [2021-06-10 12:29:21,766 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-10 12:29:21,766 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 17 states and 1219 transitions. [2021-06-10 12:29:21,769 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 18 states, 17 states have (on average 71.70588235294117) internal successors, (1219), 17 states have internal predecessors, (1219), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-10 12:29:21,772 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 18 states, 18 states have (on average 87.0) internal successors, (1566), 18 states have internal predecessors, (1566), 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 12:29:21,772 INFO L81 ComplementDD]: Finished complementDD. Result has 18 states, 18 states have (on average 87.0) internal successors, (1566), 18 states have internal predecessors, (1566), 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 12:29:21,772 INFO L185 Difference]: Start difference. First operand has 96 places, 68 transitions, 182 flow. Second operand 17 states and 1219 transitions. [2021-06-10 12:29:21,772 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 106 places, 128 transitions, 535 flow [2021-06-10 12:29:21,775 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 96 places, 128 transitions, 447 flow, removed 36 selfloop flow, removed 10 redundant places. [2021-06-10 12:29:21,777 INFO L241 Difference]: Finished difference. Result has 111 places, 76 transitions, 290 flow [2021-06-10 12:29:21,777 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=87, PETRI_DIFFERENCE_MINUEND_FLOW=156, PETRI_DIFFERENCE_MINUEND_PLACES=80, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=68, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=58, PETRI_DIFFERENCE_SUBTRAHEND_STATES=17, PETRI_FLOW=290, PETRI_PLACES=111, PETRI_TRANSITIONS=76} [2021-06-10 12:29:21,778 INFO L343 CegarLoopForPetriNet]: 81 programPoint places, 30 predicate places. [2021-06-10 12:29:21,778 INFO L480 AbstractCegarLoop]: Abstraction has has 111 places, 76 transitions, 290 flow [2021-06-10 12:29:21,778 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 68.85714285714286) internal successors, (482), 7 states have internal predecessors, (482), 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 12:29:21,778 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-10 12:29:21,778 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-10 12:29:21,778 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-06-10 12:29:21,779 INFO L428 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-10 12:29:21,779 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-10 12:29:21,779 INFO L82 PathProgramCache]: Analyzing trace with hash 375623362, now seen corresponding path program 2 times [2021-06-10 12:29:21,779 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-10 12:29:21,779 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1724752581] [2021-06-10 12:29:21,780 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-10 12:29:21,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-10 12:29:21,829 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:29:21,829 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 12:29:21,830 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:29:21,830 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-10 12:29:21,832 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:29:21,832 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-10 12:29:21,836 INFO L142 QuantifierPusher]: treesize reduction 3, result has 85.0 percent of original size [2021-06-10 12:29:21,836 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-10 12:29:21,845 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-06-10 12:29:21,846 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-06-10 12:29:21,859 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:29:21,860 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-10 12:29:21,870 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:29:21,870 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-10 12:29:21,882 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:29:21,882 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 12:29:21,883 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 12:29:21,883 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1724752581] [2021-06-10 12:29:21,884 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-10 12:29:21,884 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-10 12:29:21,884 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [82538305] [2021-06-10 12:29:21,884 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-06-10 12:29:21,884 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-10 12:29:21,885 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-06-10 12:29:21,885 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2021-06-10 12:29:21,886 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 67 out of 87 [2021-06-10 12:29:21,888 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 111 places, 76 transitions, 290 flow. Second operand has 8 states, 8 states have (on average 68.625) internal successors, (549), 8 states have internal predecessors, (549), 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 12:29:21,888 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-10 12:29:21,888 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 67 of 87 [2021-06-10 12:29:21,888 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-10 12:29:22,051 INFO L129 PetriNetUnfolder]: 89/283 cut-off events. [2021-06-10 12:29:22,051 INFO L130 PetriNetUnfolder]: For 2078/2256 co-relation queries the response was YES. [2021-06-10 12:29:22,053 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1299 conditions, 283 events. 89/283 cut-off events. For 2078/2256 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 1157 event pairs, 12 based on Foata normal form. 10/285 useless extension candidates. Maximal degree in co-relation 1242. Up to 94 conditions per place. [2021-06-10 12:29:22,054 INFO L132 encePairwiseOnDemand]: 79/87 looper letters, 16 selfloop transitions, 4 changer transitions 33/105 dead transitions. [2021-06-10 12:29:22,054 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 108 places, 105 transitions, 779 flow [2021-06-10 12:29:22,055 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-10 12:29:22,055 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-06-10 12:29:22,056 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 718 transitions. [2021-06-10 12:29:22,057 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.825287356321839 [2021-06-10 12:29:22,057 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 718 transitions. [2021-06-10 12:29:22,057 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 718 transitions. [2021-06-10 12:29:22,057 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-10 12:29:22,057 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 718 transitions. [2021-06-10 12:29:22,059 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 71.8) internal successors, (718), 10 states have internal predecessors, (718), 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 12:29:22,061 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 87.0) internal successors, (957), 11 states have internal predecessors, (957), 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 12:29:22,062 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 87.0) internal successors, (957), 11 states have internal predecessors, (957), 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 12:29:22,062 INFO L185 Difference]: Start difference. First operand has 111 places, 76 transitions, 290 flow. Second operand 10 states and 718 transitions. [2021-06-10 12:29:22,062 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 108 places, 105 transitions, 779 flow [2021-06-10 12:29:22,069 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 98 places, 105 transitions, 617 flow, removed 75 selfloop flow, removed 10 redundant places. [2021-06-10 12:29:22,071 INFO L241 Difference]: Finished difference. Result has 106 places, 68 transitions, 234 flow [2021-06-10 12:29:22,071 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=87, PETRI_DIFFERENCE_MINUEND_FLOW=251, PETRI_DIFFERENCE_MINUEND_PLACES=89, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=76, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=72, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=234, PETRI_PLACES=106, PETRI_TRANSITIONS=68} [2021-06-10 12:29:22,071 INFO L343 CegarLoopForPetriNet]: 81 programPoint places, 25 predicate places. [2021-06-10 12:29:22,071 INFO L480 AbstractCegarLoop]: Abstraction has has 106 places, 68 transitions, 234 flow [2021-06-10 12:29:22,071 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 68.625) internal successors, (549), 8 states have internal predecessors, (549), 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 12:29:22,072 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-10 12:29:22,072 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-10 12:29:22,072 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-06-10 12:29:22,072 INFO L428 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-10 12:29:22,073 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-10 12:29:22,073 INFO L82 PathProgramCache]: Analyzing trace with hash 2067473251, now seen corresponding path program 1 times [2021-06-10 12:29:22,073 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-10 12:29:22,073 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [767635680] [2021-06-10 12:29:22,073 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-10 12:29:22,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-10 12:29:22,165 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:29:22,165 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 12:29:22,166 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:29:22,166 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-10 12:29:22,180 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.8 percent of original size [2021-06-10 12:29:22,181 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-06-10 12:29:22,198 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:29:22,199 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-10 12:29:22,207 INFO L142 QuantifierPusher]: treesize reduction 11, result has 45.0 percent of original size [2021-06-10 12:29:22,210 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-10 12:29:22,218 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:29:22,219 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 12:29:22,220 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 12:29:22,221 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [767635680] [2021-06-10 12:29:22,221 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-10 12:29:22,221 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-06-10 12:29:22,221 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1355855534] [2021-06-10 12:29:22,221 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-06-10 12:29:22,221 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-10 12:29:22,222 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-06-10 12:29:22,222 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-06-10 12:29:22,223 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 72 out of 87 [2021-06-10 12:29:22,223 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 106 places, 68 transitions, 234 flow. Second operand has 6 states, 6 states have (on average 73.16666666666667) internal successors, (439), 6 states have internal predecessors, (439), 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 12:29:22,223 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-10 12:29:22,223 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 72 of 87 [2021-06-10 12:29:22,223 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-10 12:29:22,466 INFO L129 PetriNetUnfolder]: 504/1059 cut-off events. [2021-06-10 12:29:22,466 INFO L130 PetriNetUnfolder]: For 1538/1642 co-relation queries the response was YES. [2021-06-10 12:29:22,472 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2671 conditions, 1059 events. 504/1059 cut-off events. For 1538/1642 co-relation queries the response was YES. Maximal size of possible extension queue 135. Compared 6665 event pairs, 96 based on Foata normal form. 0/978 useless extension candidates. Maximal degree in co-relation 2618. Up to 281 conditions per place. [2021-06-10 12:29:22,478 INFO L132 encePairwiseOnDemand]: 76/87 looper letters, 26 selfloop transitions, 18 changer transitions 5/105 dead transitions. [2021-06-10 12:29:22,478 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 108 places, 105 transitions, 406 flow [2021-06-10 12:29:22,479 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-10 12:29:22,479 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-06-10 12:29:22,480 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 771 transitions. [2021-06-10 12:29:22,481 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8862068965517241 [2021-06-10 12:29:22,481 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 771 transitions. [2021-06-10 12:29:22,481 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 771 transitions. [2021-06-10 12:29:22,481 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-10 12:29:22,481 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 771 transitions. [2021-06-10 12:29:22,483 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 77.1) internal successors, (771), 10 states have internal predecessors, (771), 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 12:29:22,484 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 87.0) internal successors, (957), 11 states have internal predecessors, (957), 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 12:29:22,485 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 87.0) internal successors, (957), 11 states have internal predecessors, (957), 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 12:29:22,485 INFO L185 Difference]: Start difference. First operand has 106 places, 68 transitions, 234 flow. Second operand 10 states and 771 transitions. [2021-06-10 12:29:22,485 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 108 places, 105 transitions, 406 flow [2021-06-10 12:29:22,489 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 94 places, 105 transitions, 362 flow, removed 13 selfloop flow, removed 14 redundant places. [2021-06-10 12:29:22,490 INFO L241 Difference]: Finished difference. Result has 100 places, 84 transitions, 322 flow [2021-06-10 12:29:22,491 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=87, PETRI_DIFFERENCE_MINUEND_FLOW=190, PETRI_DIFFERENCE_MINUEND_PLACES=85, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=68, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=58, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=322, PETRI_PLACES=100, PETRI_TRANSITIONS=84} [2021-06-10 12:29:22,491 INFO L343 CegarLoopForPetriNet]: 81 programPoint places, 19 predicate places. [2021-06-10 12:29:22,491 INFO L480 AbstractCegarLoop]: Abstraction has has 100 places, 84 transitions, 322 flow [2021-06-10 12:29:22,491 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 73.16666666666667) internal successors, (439), 6 states have internal predecessors, (439), 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 12:29:22,491 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-10 12:29:22,492 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-10 12:29:22,492 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-06-10 12:29:22,492 INFO L428 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-10 12:29:22,492 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-10 12:29:22,492 INFO L82 PathProgramCache]: Analyzing trace with hash 1386455505, now seen corresponding path program 1 times [2021-06-10 12:29:22,492 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-10 12:29:22,492 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1168540681] [2021-06-10 12:29:22,493 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-10 12:29:22,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-10 12:29:22,530 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:29:22,531 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 12:29:22,531 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:29:22,531 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-10 12:29:22,534 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:29:22,534 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-10 12:29:22,538 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.8 percent of original size [2021-06-10 12:29:22,539 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-06-10 12:29:22,554 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:29:22,554 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-10 12:29:22,564 INFO L142 QuantifierPusher]: treesize reduction 11, result has 45.0 percent of original size [2021-06-10 12:29:22,566 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-10 12:29:22,574 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:29:22,575 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 12:29:22,575 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 12:29:22,575 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1168540681] [2021-06-10 12:29:22,575 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-10 12:29:22,576 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-06-10 12:29:22,576 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [188614514] [2021-06-10 12:29:22,576 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-06-10 12:29:22,576 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-10 12:29:22,577 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-06-10 12:29:22,577 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-06-10 12:29:22,579 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 72 out of 87 [2021-06-10 12:29:22,579 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 100 places, 84 transitions, 322 flow. Second operand has 7 states, 7 states have (on average 73.14285714285714) internal successors, (512), 7 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 12:29:22,579 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-10 12:29:22,579 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 72 of 87 [2021-06-10 12:29:22,579 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-10 12:29:22,884 INFO L129 PetriNetUnfolder]: 520/1088 cut-off events. [2021-06-10 12:29:22,884 INFO L130 PetriNetUnfolder]: For 3164/4734 co-relation queries the response was YES. [2021-06-10 12:29:22,891 INFO L84 FinitePrefix]: Finished finitePrefix Result has 4046 conditions, 1088 events. 520/1088 cut-off events. For 3164/4734 co-relation queries the response was YES. Maximal size of possible extension queue 148. Compared 7139 event pairs, 45 based on Foata normal form. 56/1086 useless extension candidates. Maximal degree in co-relation 4000. Up to 527 conditions per place. [2021-06-10 12:29:22,897 INFO L132 encePairwiseOnDemand]: 76/87 looper letters, 31 selfloop transitions, 34 changer transitions 5/126 dead transitions. [2021-06-10 12:29:22,897 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 112 places, 126 transitions, 742 flow [2021-06-10 12:29:22,898 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-06-10 12:29:22,898 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2021-06-10 12:29:22,900 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1002 transitions. [2021-06-10 12:29:22,901 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8859416445623343 [2021-06-10 12:29:22,901 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 1002 transitions. [2021-06-10 12:29:22,901 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 1002 transitions. [2021-06-10 12:29:22,902 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-10 12:29:22,902 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 1002 transitions. [2021-06-10 12:29:22,904 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 77.07692307692308) internal successors, (1002), 13 states have internal predecessors, (1002), 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 12:29:22,906 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 87.0) internal successors, (1218), 14 states have internal predecessors, (1218), 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 12:29:22,906 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 87.0) internal successors, (1218), 14 states have internal predecessors, (1218), 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 12:29:22,906 INFO L185 Difference]: Start difference. First operand has 100 places, 84 transitions, 322 flow. Second operand 13 states and 1002 transitions. [2021-06-10 12:29:22,906 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 112 places, 126 transitions, 742 flow [2021-06-10 12:29:22,911 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 111 places, 126 transitions, 740 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-06-10 12:29:22,913 INFO L241 Difference]: Finished difference. Result has 117 places, 102 transitions, 584 flow [2021-06-10 12:29:22,914 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=87, PETRI_DIFFERENCE_MINUEND_FLOW=320, PETRI_DIFFERENCE_MINUEND_PLACES=99, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=84, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=18, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=60, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=584, PETRI_PLACES=117, PETRI_TRANSITIONS=102} [2021-06-10 12:29:22,914 INFO L343 CegarLoopForPetriNet]: 81 programPoint places, 36 predicate places. [2021-06-10 12:29:22,914 INFO L480 AbstractCegarLoop]: Abstraction has has 117 places, 102 transitions, 584 flow [2021-06-10 12:29:22,914 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 73.14285714285714) internal successors, (512), 7 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 12:29:22,915 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-10 12:29:22,915 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-10 12:29:22,915 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-06-10 12:29:22,915 INFO L428 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-10 12:29:22,916 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-10 12:29:22,916 INFO L82 PathProgramCache]: Analyzing trace with hash 1607751240, now seen corresponding path program 1 times [2021-06-10 12:29:22,916 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-10 12:29:22,919 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [264340234] [2021-06-10 12:29:22,919 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-10 12:29:22,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-10 12:29:22,985 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:29:22,985 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 12:29:22,986 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:29:22,986 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-10 12:29:22,997 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:29:22,998 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-10 12:29:23,001 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:29:23,003 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-10 12:29:23,017 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.8 percent of original size [2021-06-10 12:29:23,017 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-06-10 12:29:23,032 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:29:23,033 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-10 12:29:23,042 INFO L142 QuantifierPusher]: treesize reduction 11, result has 45.0 percent of original size [2021-06-10 12:29:23,042 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-10 12:29:23,053 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:29:23,053 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 12:29:23,054 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 12:29:23,054 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [264340234] [2021-06-10 12:29:23,054 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-10 12:29:23,054 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-10 12:29:23,054 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [12742112] [2021-06-10 12:29:23,055 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-06-10 12:29:23,055 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-10 12:29:23,055 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-06-10 12:29:23,055 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-06-10 12:29:23,056 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 72 out of 87 [2021-06-10 12:29:23,057 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 117 places, 102 transitions, 584 flow. Second operand has 8 states, 8 states have (on average 73.125) internal successors, (585), 8 states have internal predecessors, (585), 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 12:29:23,057 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-10 12:29:23,057 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 72 of 87 [2021-06-10 12:29:23,057 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-10 12:29:23,449 INFO L129 PetriNetUnfolder]: 459/983 cut-off events. [2021-06-10 12:29:23,449 INFO L130 PetriNetUnfolder]: For 8938/14540 co-relation queries the response was YES. [2021-06-10 12:29:23,455 INFO L84 FinitePrefix]: Finished finitePrefix Result has 5262 conditions, 983 events. 459/983 cut-off events. For 8938/14540 co-relation queries the response was YES. Maximal size of possible extension queue 144. Compared 6477 event pairs, 10 based on Foata normal form. 85/1016 useless extension candidates. Maximal degree in co-relation 5208. Up to 496 conditions per place. [2021-06-10 12:29:23,460 INFO L132 encePairwiseOnDemand]: 76/87 looper letters, 28 selfloop transitions, 52 changer transitions 14/150 dead transitions. [2021-06-10 12:29:23,460 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 132 places, 150 transitions, 1278 flow [2021-06-10 12:29:23,461 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-06-10 12:29:23,461 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2021-06-10 12:29:23,463 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 1233 transitions. [2021-06-10 12:29:23,463 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8857758620689655 [2021-06-10 12:29:23,463 INFO L72 ComplementDD]: Start complementDD. Operand 16 states and 1233 transitions. [2021-06-10 12:29:23,464 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 1233 transitions. [2021-06-10 12:29:23,464 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-10 12:29:23,464 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 16 states and 1233 transitions. [2021-06-10 12:29:23,467 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 17 states, 16 states have (on average 77.0625) internal successors, (1233), 16 states have internal predecessors, (1233), 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 12:29:23,469 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 17 states, 17 states have (on average 87.0) internal successors, (1479), 17 states have internal predecessors, (1479), 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 12:29:23,470 INFO L81 ComplementDD]: Finished complementDD. Result has 17 states, 17 states have (on average 87.0) internal successors, (1479), 17 states have internal predecessors, (1479), 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 12:29:23,470 INFO L185 Difference]: Start difference. First operand has 117 places, 102 transitions, 584 flow. Second operand 16 states and 1233 transitions. [2021-06-10 12:29:23,470 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 132 places, 150 transitions, 1278 flow [2021-06-10 12:29:23,482 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 128 places, 150 transitions, 1189 flow, removed 36 selfloop flow, removed 4 redundant places. [2021-06-10 12:29:23,485 INFO L241 Difference]: Finished difference. Result has 134 places, 125 transitions, 932 flow [2021-06-10 12:29:23,485 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=87, PETRI_DIFFERENCE_MINUEND_FLOW=503, PETRI_DIFFERENCE_MINUEND_PLACES=113, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=102, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=37, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=62, PETRI_DIFFERENCE_SUBTRAHEND_STATES=16, PETRI_FLOW=932, PETRI_PLACES=134, PETRI_TRANSITIONS=125} [2021-06-10 12:29:23,485 INFO L343 CegarLoopForPetriNet]: 81 programPoint places, 53 predicate places. [2021-06-10 12:29:23,485 INFO L480 AbstractCegarLoop]: Abstraction has has 134 places, 125 transitions, 932 flow [2021-06-10 12:29:23,486 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 73.125) internal successors, (585), 8 states have internal predecessors, (585), 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 12:29:23,486 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-10 12:29:23,486 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-10 12:29:23,486 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-06-10 12:29:23,486 INFO L428 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-10 12:29:23,486 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-10 12:29:23,487 INFO L82 PathProgramCache]: Analyzing trace with hash -1206079799, now seen corresponding path program 1 times [2021-06-10 12:29:23,487 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-10 12:29:23,487 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [722870732] [2021-06-10 12:29:23,487 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-10 12:29:23,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-10 12:29:23,518 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:29:23,518 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 12:29:23,518 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:29:23,519 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-10 12:29:23,521 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:29:23,522 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-10 12:29:23,525 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:29:23,525 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-10 12:29:23,530 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:29:23,530 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-10 12:29:23,536 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.8 percent of original size [2021-06-10 12:29:23,536 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-06-10 12:29:23,551 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:29:23,552 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-10 12:29:23,561 INFO L142 QuantifierPusher]: treesize reduction 11, result has 45.0 percent of original size [2021-06-10 12:29:23,562 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-10 12:29:23,570 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:29:23,571 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 12:29:23,572 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 12:29:23,572 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [722870732] [2021-06-10 12:29:23,572 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-10 12:29:23,572 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-10 12:29:23,572 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [14436126] [2021-06-10 12:29:23,573 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-10 12:29:23,573 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-10 12:29:23,573 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-10 12:29:23,573 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2021-06-10 12:29:23,574 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 72 out of 87 [2021-06-10 12:29:23,575 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 134 places, 125 transitions, 932 flow. Second operand has 9 states, 9 states have (on average 73.11111111111111) internal successors, (658), 9 states have internal predecessors, (658), 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 12:29:23,575 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-10 12:29:23,575 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 72 of 87 [2021-06-10 12:29:23,575 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-10 12:29:23,979 INFO L129 PetriNetUnfolder]: 370/892 cut-off events. [2021-06-10 12:29:23,980 INFO L130 PetriNetUnfolder]: For 9614/13105 co-relation queries the response was YES. [2021-06-10 12:29:23,987 INFO L84 FinitePrefix]: Finished finitePrefix Result has 4946 conditions, 892 events. 370/892 cut-off events. For 9614/13105 co-relation queries the response was YES. Maximal size of possible extension queue 141. Compared 6270 event pairs, 2 based on Foata normal form. 91/932 useless extension candidates. Maximal degree in co-relation 4885. Up to 312 conditions per place. [2021-06-10 12:29:23,991 INFO L132 encePairwiseOnDemand]: 76/87 looper letters, 22 selfloop transitions, 57 changer transitions 25/160 dead transitions. [2021-06-10 12:29:23,991 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 152 places, 160 transitions, 1459 flow [2021-06-10 12:29:23,992 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-06-10 12:29:23,992 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2021-06-10 12:29:23,994 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 1444 transitions. [2021-06-10 12:29:23,995 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8735632183908046 [2021-06-10 12:29:23,995 INFO L72 ComplementDD]: Start complementDD. Operand 19 states and 1444 transitions. [2021-06-10 12:29:23,995 INFO L73 IsDeterministic]: Start isDeterministic. Operand 19 states and 1444 transitions. [2021-06-10 12:29:23,996 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-10 12:29:23,996 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 19 states and 1444 transitions. [2021-06-10 12:29:23,999 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 20 states, 19 states have (on average 76.0) internal successors, (1444), 19 states have internal predecessors, (1444), 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 12:29:24,001 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 20 states, 20 states have (on average 87.0) internal successors, (1740), 20 states have internal predecessors, (1740), 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 12:29:24,002 INFO L81 ComplementDD]: Finished complementDD. Result has 20 states, 20 states have (on average 87.0) internal successors, (1740), 20 states have internal predecessors, (1740), 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 12:29:24,002 INFO L185 Difference]: Start difference. First operand has 134 places, 125 transitions, 932 flow. Second operand 19 states and 1444 transitions. [2021-06-10 12:29:24,002 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 152 places, 160 transitions, 1459 flow [2021-06-10 12:29:24,037 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 143 places, 160 transitions, 1266 flow, removed 72 selfloop flow, removed 9 redundant places. [2021-06-10 12:29:24,040 INFO L241 Difference]: Finished difference. Result has 150 places, 125 transitions, 888 flow [2021-06-10 12:29:24,040 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=87, PETRI_DIFFERENCE_MINUEND_FLOW=747, PETRI_DIFFERENCE_MINUEND_PLACES=125, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=125, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=54, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=68, PETRI_DIFFERENCE_SUBTRAHEND_STATES=19, PETRI_FLOW=888, PETRI_PLACES=150, PETRI_TRANSITIONS=125} [2021-06-10 12:29:24,040 INFO L343 CegarLoopForPetriNet]: 81 programPoint places, 69 predicate places. [2021-06-10 12:29:24,040 INFO L480 AbstractCegarLoop]: Abstraction has has 150 places, 125 transitions, 888 flow [2021-06-10 12:29:24,041 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 73.11111111111111) internal successors, (658), 9 states have internal predecessors, (658), 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 12:29:24,041 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-10 12:29:24,041 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-10 12:29:24,041 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-06-10 12:29:24,041 INFO L428 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-10 12:29:24,041 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-10 12:29:24,041 INFO L82 PathProgramCache]: Analyzing trace with hash 902605892, now seen corresponding path program 1 times [2021-06-10 12:29:24,042 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-10 12:29:24,042 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1861442208] [2021-06-10 12:29:24,042 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-10 12:29:24,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-10 12:29:24,069 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:29:24,070 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 12:29:24,070 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:29:24,070 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-10 12:29:24,073 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:29:24,073 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-10 12:29:24,077 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-06-10 12:29:24,077 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-06-10 12:29:24,092 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:29:24,093 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-10 12:29:24,100 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:29:24,101 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-10 12:29:24,113 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:29:24,114 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 12:29:24,114 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 12:29:24,115 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1861442208] [2021-06-10 12:29:24,115 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-10 12:29:24,115 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-06-10 12:29:24,115 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [258159802] [2021-06-10 12:29:24,115 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-06-10 12:29:24,115 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-10 12:29:24,116 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-06-10 12:29:24,116 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-06-10 12:29:24,117 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 72 out of 87 [2021-06-10 12:29:24,117 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 150 places, 125 transitions, 888 flow. Second operand has 7 states, 7 states have (on average 73.57142857142857) internal successors, (515), 7 states have internal predecessors, (515), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-10 12:29:24,117 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-10 12:29:24,117 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 72 of 87 [2021-06-10 12:29:24,117 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-10 12:29:24,370 INFO L129 PetriNetUnfolder]: 417/1300 cut-off events. [2021-06-10 12:29:24,371 INFO L130 PetriNetUnfolder]: For 5456/5992 co-relation queries the response was YES. [2021-06-10 12:29:24,379 INFO L84 FinitePrefix]: Finished finitePrefix Result has 5072 conditions, 1300 events. 417/1300 cut-off events. For 5456/5992 co-relation queries the response was YES. Maximal size of possible extension queue 208. Compared 11433 event pairs, 2 based on Foata normal form. 1/1216 useless extension candidates. Maximal degree in co-relation 5004. Up to 179 conditions per place. [2021-06-10 12:29:24,381 INFO L132 encePairwiseOnDemand]: 81/87 looper letters, 10 selfloop transitions, 1 changer transitions 52/131 dead transitions. [2021-06-10 12:29:24,381 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 153 places, 131 transitions, 943 flow [2021-06-10 12:29:24,382 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-06-10 12:29:24,382 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-06-10 12:29:24,382 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 522 transitions. [2021-06-10 12:29:24,383 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8571428571428571 [2021-06-10 12:29:24,383 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 522 transitions. [2021-06-10 12:29:24,383 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 522 transitions. [2021-06-10 12:29:24,383 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-10 12:29:24,383 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 522 transitions. [2021-06-10 12:29:24,384 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 74.57142857142857) internal successors, (522), 7 states have internal predecessors, (522), 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 12:29:24,385 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 87.0) internal successors, (696), 8 states have internal predecessors, (696), 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 12:29:24,385 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 87.0) internal successors, (696), 8 states have internal predecessors, (696), 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 12:29:24,385 INFO L185 Difference]: Start difference. First operand has 150 places, 125 transitions, 888 flow. Second operand 7 states and 522 transitions. [2021-06-10 12:29:24,385 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 153 places, 131 transitions, 943 flow [2021-06-10 12:29:24,426 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 130 places, 131 transitions, 726 flow, removed 39 selfloop flow, removed 23 redundant places. [2021-06-10 12:29:24,428 INFO L241 Difference]: Finished difference. Result has 135 places, 79 transitions, 316 flow [2021-06-10 12:29:24,428 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=87, PETRI_DIFFERENCE_MINUEND_FLOW=677, PETRI_DIFFERENCE_MINUEND_PLACES=124, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=125, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=124, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=316, PETRI_PLACES=135, PETRI_TRANSITIONS=79} [2021-06-10 12:29:24,429 INFO L343 CegarLoopForPetriNet]: 81 programPoint places, 54 predicate places. [2021-06-10 12:29:24,429 INFO L480 AbstractCegarLoop]: Abstraction has has 135 places, 79 transitions, 316 flow [2021-06-10 12:29:24,429 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 73.57142857142857) internal successors, (515), 7 states have internal predecessors, (515), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-10 12:29:24,429 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-10 12:29:24,429 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-10 12:29:24,429 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-06-10 12:29:24,429 INFO L428 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-10 12:29:24,430 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-10 12:29:24,430 INFO L82 PathProgramCache]: Analyzing trace with hash 2079541372, now seen corresponding path program 2 times [2021-06-10 12:29:24,430 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-10 12:29:24,430 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1750366792] [2021-06-10 12:29:24,430 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-10 12:29:24,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-10 12:29:24,460 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:29:24,461 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 12:29:24,461 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:29:24,461 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-10 12:29:24,464 INFO L142 QuantifierPusher]: treesize reduction 3, result has 85.0 percent of original size [2021-06-10 12:29:24,466 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-10 12:29:24,475 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-06-10 12:29:24,476 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-06-10 12:29:24,491 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:29:24,492 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-10 12:29:24,500 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:29:24,501 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-10 12:29:24,510 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:29:24,510 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 12:29:24,511 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 12:29:24,511 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1750366792] [2021-06-10 12:29:24,511 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-10 12:29:24,511 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-06-10 12:29:24,511 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [127732655] [2021-06-10 12:29:24,512 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-06-10 12:29:24,512 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-10 12:29:24,512 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-06-10 12:29:24,512 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-06-10 12:29:24,513 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 67 out of 87 [2021-06-10 12:29:24,513 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 135 places, 79 transitions, 316 flow. Second operand has 7 states, 7 states have (on average 69.28571428571429) internal successors, (485), 7 states have internal predecessors, (485), 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 12:29:24,514 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-10 12:29:24,514 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 67 of 87 [2021-06-10 12:29:24,514 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-10 12:29:24,624 INFO L129 PetriNetUnfolder]: 35/196 cut-off events. [2021-06-10 12:29:24,625 INFO L130 PetriNetUnfolder]: For 169/170 co-relation queries the response was YES. [2021-06-10 12:29:24,626 INFO L84 FinitePrefix]: Finished finitePrefix Result has 434 conditions, 196 events. 35/196 cut-off events. For 169/170 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 796 event pairs, 0 based on Foata normal form. 2/188 useless extension candidates. Maximal degree in co-relation 410. Up to 30 conditions per place. [2021-06-10 12:29:24,626 INFO L132 encePairwiseOnDemand]: 76/87 looper letters, 0 selfloop transitions, 0 changer transitions 80/80 dead transitions. [2021-06-10 12:29:24,626 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 118 places, 80 transitions, 358 flow [2021-06-10 12:29:24,626 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-06-10 12:29:24,627 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-06-10 12:29:24,627 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 555 transitions. [2021-06-10 12:29:24,628 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7974137931034483 [2021-06-10 12:29:24,628 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 555 transitions. [2021-06-10 12:29:24,628 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 555 transitions. [2021-06-10 12:29:24,628 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-10 12:29:24,628 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 555 transitions. [2021-06-10 12:29:24,629 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 69.375) internal successors, (555), 8 states have internal predecessors, (555), 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 12:29:24,630 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 87.0) internal successors, (783), 9 states have internal predecessors, (783), 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 12:29:24,630 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 87.0) internal successors, (783), 9 states have internal predecessors, (783), 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 12:29:24,630 INFO L185 Difference]: Start difference. First operand has 135 places, 79 transitions, 316 flow. Second operand 8 states and 555 transitions. [2021-06-10 12:29:24,630 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 118 places, 80 transitions, 358 flow [2021-06-10 12:29:24,632 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 92 places, 80 transitions, 266 flow, removed 17 selfloop flow, removed 26 redundant places. [2021-06-10 12:29:24,633 INFO L241 Difference]: Finished difference. Result has 92 places, 0 transitions, 0 flow [2021-06-10 12:29:24,633 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=87, PETRI_DIFFERENCE_MINUEND_FLOW=218, PETRI_DIFFERENCE_MINUEND_PLACES=85, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=77, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=77, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=0, PETRI_PLACES=92, PETRI_TRANSITIONS=0} [2021-06-10 12:29:24,633 INFO L343 CegarLoopForPetriNet]: 81 programPoint places, 11 predicate places. [2021-06-10 12:29:24,633 INFO L480 AbstractCegarLoop]: Abstraction has has 92 places, 0 transitions, 0 flow [2021-06-10 12:29:24,633 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 69.28571428571429) internal successors, (485), 7 states have internal predecessors, (485), 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 12:29:24,634 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-06-10 12:29:24,638 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.06 12:29:24 BasicIcfg [2021-06-10 12:29:24,638 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-06-10 12:29:24,639 INFO L168 Benchmark]: Toolchain (without parser) took 5835.58 ms. Allocated memory was 356.5 MB in the beginning and 427.8 MB in the end (delta: 71.3 MB). Free memory was 318.8 MB in the beginning and 324.3 MB in the end (delta: -5.5 MB). Peak memory consumption was 66.3 MB. Max. memory is 16.0 GB. [2021-06-10 12:29:24,639 INFO L168 Benchmark]: CDTParser took 0.13 ms. Allocated memory is still 356.5 MB. Free memory is still 337.2 MB. There was no memory consumed. Max. memory is 16.0 GB. [2021-06-10 12:29:24,639 INFO L168 Benchmark]: CACSL2BoogieTranslator took 463.32 ms. Allocated memory is still 356.5 MB. Free memory was 318.6 MB in the beginning and 317.2 MB in the end (delta: 1.4 MB). Peak memory consumption was 7.3 MB. Max. memory is 16.0 GB. [2021-06-10 12:29:24,640 INFO L168 Benchmark]: Boogie Procedure Inliner took 33.83 ms. Allocated memory is still 356.5 MB. Free memory was 317.2 MB in the beginning and 315.1 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-06-10 12:29:24,640 INFO L168 Benchmark]: Boogie Preprocessor took 19.09 ms. Allocated memory is still 356.5 MB. Free memory was 315.1 MB in the beginning and 314.4 MB in the end (delta: 739.0 kB). There was no memory consumed. Max. memory is 16.0 GB. [2021-06-10 12:29:24,640 INFO L168 Benchmark]: RCFGBuilder took 406.48 ms. Allocated memory is still 356.5 MB. Free memory was 313.8 MB in the beginning and 289.2 MB in the end (delta: 24.5 MB). Peak memory consumption was 25.2 MB. Max. memory is 16.0 GB. [2021-06-10 12:29:24,641 INFO L168 Benchmark]: TraceAbstraction took 4906.47 ms. Allocated memory was 356.5 MB in the beginning and 427.8 MB in the end (delta: 71.3 MB). Free memory was 288.6 MB in the beginning and 324.3 MB in the end (delta: -35.7 MB). Peak memory consumption was 37.7 MB. Max. memory is 16.0 GB. [2021-06-10 12:29:24,642 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13 ms. Allocated memory is still 356.5 MB. Free memory is still 337.2 MB. There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 463.32 ms. Allocated memory is still 356.5 MB. Free memory was 318.6 MB in the beginning and 317.2 MB in the end (delta: 1.4 MB). Peak memory consumption was 7.3 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 33.83 ms. Allocated memory is still 356.5 MB. Free memory was 317.2 MB in the beginning and 315.1 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 19.09 ms. Allocated memory is still 356.5 MB. Free memory was 315.1 MB in the beginning and 314.4 MB in the end (delta: 739.0 kB). There was no memory consumed. Max. memory is 16.0 GB. * RCFGBuilder took 406.48 ms. Allocated memory is still 356.5 MB. Free memory was 313.8 MB in the beginning and 289.2 MB in the end (delta: 24.5 MB). Peak memory consumption was 25.2 MB. Max. memory is 16.0 GB. * TraceAbstraction took 4906.47 ms. Allocated memory was 356.5 MB in the beginning and 427.8 MB in the end (delta: 71.3 MB). Free memory was 288.6 MB in the beginning and 324.3 MB in the end (delta: -35.7 MB). Peak memory consumption was 37.7 MB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 18]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 86 locations, 1 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 16.1ms, RemoveRedundantFlowTime: 0.0ms, RemoveRedundantFlowUnfoldingTime: 0.0ms, BackfoldingTime: 0.0ms, BackfoldingUnfoldingTime: 0.0ms, FlowIncreaseByBackfolding: 0, BasicCegarLoop: VerificationResult: SAFE, OverallTime: 4812.8ms, OverallIterations: 11, TraceHistogramMax: 1, EmptinessCheckTime: 0.0ms, AutomataDifference: 3149.5ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 50.0ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 133 SDtfs, 429 SDslu, 474 SDs, 0 SdLazy, 625 SolverSat, 160 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 494.0ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 162 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 140 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 283 ImplicationChecksByTransitivity, 1543.9ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=932occurred in iteration=8, InterpolantAutomatonStates: 129, 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: 35.8ms SsaConstructionTime, 184.7ms SatisfiabilityAnalysisTime, 1181.3ms InterpolantComputationTime, 580 NumberOfCodeBlocks, 580 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 569 ConstructedInterpolants, 0 QuantifiedInterpolants, 2417 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 11 InterpolantComputations, 11 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 - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! Received shutdown request...