/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-Before.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/weaver/chl-array-int-symm.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-bf34d27 [2022-01-19 06:55:58,662 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-19 06:55:58,663 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-19 06:55:58,695 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-01-19 06:55:58,697 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-01-19 06:55:58,697 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-01-19 06:55:58,698 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-01-19 06:55:58,699 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-01-19 06:55:58,700 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-01-19 06:55:58,701 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-01-19 06:55:58,701 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-01-19 06:55:58,702 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-01-19 06:55:58,702 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-01-19 06:55:58,702 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-01-19 06:55:58,703 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-01-19 06:55:58,735 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-01-19 06:55:58,736 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-01-19 06:55:58,737 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-01-19 06:55:58,738 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-01-19 06:55:58,739 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-01-19 06:55:58,740 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-01-19 06:55:58,740 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-01-19 06:55:58,741 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-01-19 06:55:58,741 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-01-19 06:55:58,743 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-01-19 06:55:58,743 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-01-19 06:55:58,743 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-01-19 06:55:58,744 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-01-19 06:55:58,744 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-01-19 06:55:58,745 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-01-19 06:55:58,745 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-01-19 06:55:58,746 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-01-19 06:55:58,746 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-01-19 06:55:58,747 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-01-19 06:55:58,747 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-01-19 06:55:58,747 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-01-19 06:55:58,748 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-01-19 06:55:58,748 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-01-19 06:55:58,748 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-19 06:55:58,749 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-19 06:55:58,749 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-19 06:55:58,759 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-Before.epf [2022-01-19 06:55:58,776 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-19 06:55:58,776 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-19 06:55:58,776 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-01-19 06:55:58,777 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-01-19 06:55:58,777 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-01-19 06:55:58,777 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-01-19 06:55:58,777 INFO L138 SettingsManager]: * Use SBE=true [2022-01-19 06:55:58,777 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-19 06:55:58,777 INFO L138 SettingsManager]: * sizeof long=4 [2022-01-19 06:55:58,777 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-19 06:55:58,777 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-01-19 06:55:58,778 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-19 06:55:58,778 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-19 06:55:58,778 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-19 06:55:58,778 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-19 06:55:58,778 INFO L138 SettingsManager]: * sizeof long double=12 [2022-01-19 06:55:58,778 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-19 06:55:58,778 INFO L138 SettingsManager]: * Use constant arrays=true [2022-01-19 06:55:58,778 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-19 06:55:58,778 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-19 06:55:58,778 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-19 06:55:58,778 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-01-19 06:55:58,779 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-19 06:55:58,779 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-19 06:55:58,779 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-19 06:55:58,779 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-01-19 06:55:58,779 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-01-19 06:55:58,779 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-01-19 06:55:58,779 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-01-19 06:55:58,779 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-01-19 06:55:58,779 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-01-19 06:55:58,779 INFO L138 SettingsManager]: * When to check the insufficient erros location relative to the other error locations=BEFORE [2022-01-19 06:55:58,779 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-01-19 06:55:58,930 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-19 06:55:58,944 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-19 06:55:58,946 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-19 06:55:58,947 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-19 06:55:58,949 INFO L275 PluginConnector]: CDTParser initialized [2022-01-19 06:55:58,949 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/chl-array-int-symm.wvr.c [2022-01-19 06:55:59,003 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/01986edbe/c8690fcad8c44e74a3f9e94946a96723/FLAGf5628f280 [2022-01-19 06:55:59,351 INFO L306 CDTParser]: Found 1 translation units. [2022-01-19 06:55:59,352 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/chl-array-int-symm.wvr.c [2022-01-19 06:55:59,358 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/01986edbe/c8690fcad8c44e74a3f9e94946a96723/FLAGf5628f280 [2022-01-19 06:55:59,367 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/01986edbe/c8690fcad8c44e74a3f9e94946a96723 [2022-01-19 06:55:59,368 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-19 06:55:59,369 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-01-19 06:55:59,370 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-19 06:55:59,370 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-19 06:55:59,372 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-19 06:55:59,379 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.01 06:55:59" (1/1) ... [2022-01-19 06:55:59,380 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@a2d048d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 06:55:59, skipping insertion in model container [2022-01-19 06:55:59,380 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.01 06:55:59" (1/1) ... [2022-01-19 06:55:59,387 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-19 06:55:59,405 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-19 06:55:59,540 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/chl-array-int-symm.wvr.c[2482,2495] [2022-01-19 06:55:59,547 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-19 06:55:59,552 INFO L203 MainTranslator]: Completed pre-run [2022-01-19 06:55:59,566 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/chl-array-int-symm.wvr.c[2482,2495] [2022-01-19 06:55:59,569 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-19 06:55:59,577 INFO L208 MainTranslator]: Completed translation [2022-01-19 06:55:59,577 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 06:55:59 WrapperNode [2022-01-19 06:55:59,577 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-19 06:55:59,578 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-01-19 06:55:59,578 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-01-19 06:55:59,578 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-01-19 06:55:59,583 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 06:55:59" (1/1) ... [2022-01-19 06:55:59,588 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 06:55:59" (1/1) ... [2022-01-19 06:55:59,602 INFO L137 Inliner]: procedures = 25, calls = 39, calls flagged for inlining = 13, calls inlined = 17, statements flattened = 198 [2022-01-19 06:55:59,602 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-01-19 06:55:59,603 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-19 06:55:59,603 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-19 06:55:59,603 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-19 06:55:59,608 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 06:55:59" (1/1) ... [2022-01-19 06:55:59,608 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 06:55:59" (1/1) ... [2022-01-19 06:55:59,610 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 06:55:59" (1/1) ... [2022-01-19 06:55:59,610 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 06:55:59" (1/1) ... [2022-01-19 06:55:59,615 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 06:55:59" (1/1) ... [2022-01-19 06:55:59,617 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 06:55:59" (1/1) ... [2022-01-19 06:55:59,618 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 06:55:59" (1/1) ... [2022-01-19 06:55:59,620 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-19 06:55:59,620 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-19 06:55:59,621 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-19 06:55:59,621 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-19 06:55:59,621 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 06:55:59" (1/1) ... [2022-01-19 06:55:59,625 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-19 06:55:59,631 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-19 06:55:59,640 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-01-19 06:55:59,645 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-01-19 06:55:59,662 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-19 06:55:59,662 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-01-19 06:55:59,662 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-01-19 06:55:59,662 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-01-19 06:55:59,662 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-01-19 06:55:59,662 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-01-19 06:55:59,662 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-01-19 06:55:59,663 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-01-19 06:55:59,663 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-01-19 06:55:59,663 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-01-19 06:55:59,663 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-19 06:55:59,663 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-19 06:55:59,663 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-01-19 06:55:59,664 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-01-19 06:55:59,717 INFO L234 CfgBuilder]: Building ICFG [2022-01-19 06:55:59,718 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-19 06:55:59,977 INFO L275 CfgBuilder]: Performing block encoding [2022-01-19 06:55:59,984 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-19 06:55:59,984 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2022-01-19 06:55:59,986 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.01 06:55:59 BoogieIcfgContainer [2022-01-19 06:55:59,986 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-19 06:55:59,987 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-19 06:55:59,987 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-19 06:55:59,990 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-19 06:55:59,990 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.01 06:55:59" (1/3) ... [2022-01-19 06:55:59,991 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@ca5f87c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.01 06:55:59, skipping insertion in model container [2022-01-19 06:55:59,991 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 06:55:59" (2/3) ... [2022-01-19 06:55:59,992 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@ca5f87c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.01 06:55:59, skipping insertion in model container [2022-01-19 06:55:59,992 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.01 06:55:59" (3/3) ... [2022-01-19 06:55:59,992 INFO L111 eAbstractionObserver]: Analyzing ICFG chl-array-int-symm.wvr.c [2022-01-19 06:55:59,996 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-01-19 06:55:59,997 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-01-19 06:55:59,997 INFO L534 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-01-19 06:56:00,051 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:56:00,051 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:56:00,052 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:56:00,052 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:56:00,052 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:56:00,052 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:56:00,052 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:56:00,053 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:56:00,053 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:56:00,053 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:56:00,053 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:56:00,053 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:56:00,053 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:56:00,053 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:56:00,053 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:56:00,054 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:56:00,054 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:56:00,054 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:56:00,054 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:56:00,054 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:56:00,054 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:56:00,054 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:56:00,054 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:56:00,055 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:56:00,055 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:56:00,055 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:56:00,055 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:56:00,055 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:56:00,055 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:56:00,055 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:56:00,055 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:56:00,055 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:56:00,056 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:56:00,056 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:56:00,056 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:56:00,056 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:56:00,056 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:56:00,056 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:56:00,056 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:56:00,056 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:56:00,056 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:56:00,057 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:56:00,057 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:56:00,057 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:56:00,057 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:56:00,057 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:56:00,057 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:56:00,057 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:56:00,057 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:56:00,058 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:56:00,058 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:56:00,058 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:56:00,058 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:56:00,058 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:56:00,058 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_minus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:56:00,058 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_minus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:56:00,058 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:56:00,058 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:56:00,058 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_minus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:56:00,058 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_minus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:56:00,059 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_minus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:56:00,059 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_minus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:56:00,059 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:56:00,059 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:56:00,059 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:56:00,059 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:56:00,059 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_minus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:56:00,059 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:56:00,059 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_minus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:56:00,059 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:56:00,059 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_minus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:56:00,060 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:56:00,060 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_minus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:56:00,060 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:56:00,060 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:56:00,060 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:56:00,060 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:56:00,060 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:56:00,060 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:56:00,060 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:56:00,061 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:56:00,061 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:56:00,061 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:56:00,061 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:56:00,061 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:56:00,061 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:56:00,061 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:56:00,061 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:56:00,062 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:56:00,062 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:56:00,062 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:56:00,062 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:56:00,062 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:56:00,062 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:56:00,062 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:56:00,062 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:56:00,063 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:56:00,063 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:56:00,063 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:56:00,063 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:56:00,063 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:56:00,063 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:56:00,063 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:56:00,063 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:56:00,064 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:56:00,064 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:56:00,064 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:56:00,064 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:56:00,064 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_minus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:56:00,064 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:56:00,064 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:56:00,064 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_minus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:56:00,064 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_minus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:56:00,064 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ret5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:56:00,065 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_minus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:56:00,065 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ret5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:56:00,065 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ret5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:56:00,065 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ret5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:56:00,065 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ret5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:56:00,065 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ret5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:56:00,066 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:56:00,066 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:56:00,066 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:56:00,066 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:56:00,066 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ret5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:56:00,066 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ret5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:56:00,066 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:56:00,067 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:56:00,067 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:56:00,067 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:56:00,067 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:56:00,067 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:56:00,068 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:56:00,068 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:56:00,068 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:56:00,068 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:56:00,068 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:56:00,068 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:56:00,068 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:56:00,068 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:56:00,068 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:56:00,069 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:56:00,069 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:56:00,069 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:56:00,069 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:56:00,069 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:56:00,069 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:56:00,069 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:56:00,069 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:56:00,069 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:56:00,070 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:56:00,070 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:56:00,070 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:56:00,070 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:56:00,070 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:56:00,070 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:56:00,070 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:56:00,070 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:56:00,070 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:56:00,070 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:56:00,070 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:56:00,071 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem9#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:56:00,071 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:56:00,071 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem9#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:56:00,071 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:56:00,071 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:56:00,071 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:56:00,071 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:56:00,071 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:56:00,071 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem10#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:56:00,072 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:56:00,072 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem10#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:56:00,072 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:56:00,072 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:56:00,072 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:56:00,072 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:56:00,072 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:56:00,072 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:56:00,072 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem9#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:56:00,073 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem10#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:56:00,073 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_minus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:56:00,073 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_minus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:56:00,073 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem9#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:56:00,073 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem10#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:56:00,073 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_minus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:56:00,073 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_minus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:56:00,073 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_minus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:56:00,073 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_minus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:56:00,073 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:56:00,073 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:56:00,073 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:56:00,074 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:56:00,074 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_minus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:56:00,074 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:56:00,074 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_minus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:56:00,074 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:56:00,074 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_minus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:56:00,074 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:56:00,074 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_minus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:56:00,074 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:56:00,074 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:56:00,075 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:56:00,075 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:56:00,075 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:56:00,075 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:56:00,075 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:56:00,075 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:56:00,075 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:56:00,076 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:56:00,076 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:56:00,076 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:56:00,076 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:56:00,076 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:56:00,076 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:56:00,076 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:56:00,076 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:56:00,076 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:56:00,076 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:56:00,077 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:56:00,077 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:56:00,077 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:56:00,077 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:56:00,077 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:56:00,077 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:56:00,077 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:56:00,077 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:56:00,078 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:56:00,078 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:56:00,078 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:56:00,078 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:56:00,078 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:56:00,078 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:56:00,078 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:56:00,078 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:56:00,078 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_minus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:56:00,078 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:56:00,079 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:56:00,079 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_minus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:56:00,079 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_minus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:56:00,079 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ret11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:56:00,079 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_minus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:56:00,079 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ret11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:56:00,079 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ret11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:56:00,079 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ret11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:56:00,080 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ret11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:56:00,080 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ret11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:56:00,080 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem9#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:56:00,080 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem9#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:56:00,080 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem10#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:56:00,080 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem10#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:56:00,080 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ret11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:56:00,080 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ret11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:56:00,082 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:56:00,082 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:56:00,083 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ret11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:56:00,083 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:56:00,083 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:56:00,083 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem10#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:56:00,083 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:56:00,083 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_minus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:56:00,083 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:56:00,083 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem9#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:56:00,083 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:56:00,083 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:56:00,083 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:56:00,084 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_minus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:56:00,084 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_minus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:56:00,084 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:56:00,085 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_minus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:56:00,085 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:56:00,085 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_minus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:56:00,085 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:56:00,086 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_minus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:56:00,086 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ret5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:56:00,086 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:56:00,086 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:56:00,086 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:56:00,086 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:56:00,086 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:56:00,086 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:56:00,086 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:56:00,086 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:56:00,087 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:56:00,087 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:56:00,089 INFO L148 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-01-19 06:56:00,118 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-19 06:56:00,123 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2022-01-19 06:56:00,123 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2022-01-19 06:56:00,138 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 244 places, 258 transitions, 532 flow [2022-01-19 06:56:00,219 INFO L129 PetriNetUnfolder]: 21/256 cut-off events. [2022-01-19 06:56:00,220 INFO L130 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-01-19 06:56:00,227 INFO L84 FinitePrefix]: Finished finitePrefix Result has 265 conditions, 256 events. 21/256 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 346 event pairs, 0 based on Foata normal form. 0/234 useless extension candidates. Maximal degree in co-relation 165. Up to 3 conditions per place. [2022-01-19 06:56:00,228 INFO L82 GeneralOperation]: Start removeDead. Operand has 244 places, 258 transitions, 532 flow [2022-01-19 06:56:00,232 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 233 places, 247 transitions, 506 flow [2022-01-19 06:56:00,272 INFO L129 PetriNetUnfolder]: 21/246 cut-off events. [2022-01-19 06:56:00,273 INFO L130 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-01-19 06:56:00,273 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 06:56:00,273 INFO L254 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-19 06:56:00,274 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-19 06:56:00,277 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 06:56:00,277 INFO L85 PathProgramCache]: Analyzing trace with hash -1576786576, now seen corresponding path program 1 times [2022-01-19 06:56:00,283 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 06:56:00,283 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [931127352] [2022-01-19 06:56:00,283 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 06:56:00,284 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 06:56:00,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 06:56:00,464 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-19 06:56:00,465 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 06:56:00,466 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [931127352] [2022-01-19 06:56:00,466 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [931127352] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 06:56:00,466 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 06:56:00,466 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-19 06:56:00,467 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1934806875] [2022-01-19 06:56:00,468 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 06:56:00,474 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-01-19 06:56:00,474 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 06:56:00,490 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-01-19 06:56:00,492 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-01-19 06:56:00,497 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 238 out of 258 [2022-01-19 06:56:00,501 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 233 places, 247 transitions, 506 flow. Second operand has 2 states, 2 states have (on average 241.5) internal successors, (483), 2 states have internal predecessors, (483), 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) [2022-01-19 06:56:00,501 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 06:56:00,501 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 238 of 258 [2022-01-19 06:56:00,502 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 06:56:00,577 INFO L129 PetriNetUnfolder]: 6/232 cut-off events. [2022-01-19 06:56:00,578 INFO L130 PetriNetUnfolder]: For 8/8 co-relation queries the response was YES. [2022-01-19 06:56:00,579 INFO L84 FinitePrefix]: Finished finitePrefix Result has 246 conditions, 232 events. 6/232 cut-off events. For 8/8 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 334 event pairs, 0 based on Foata normal form. 17/232 useless extension candidates. Maximal degree in co-relation 157. Up to 5 conditions per place. [2022-01-19 06:56:00,580 INFO L132 encePairwiseOnDemand]: 243/258 looper letters, 4 selfloop transitions, 0 changer transitions 7/232 dead transitions. [2022-01-19 06:56:00,580 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 234 places, 232 transitions, 484 flow [2022-01-19 06:56:00,581 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-01-19 06:56:00,583 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2022-01-19 06:56:00,588 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 495 transitions. [2022-01-19 06:56:00,590 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.9593023255813954 [2022-01-19 06:56:00,590 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 495 transitions. [2022-01-19 06:56:00,591 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 495 transitions. [2022-01-19 06:56:00,593 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 06:56:00,594 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 495 transitions. [2022-01-19 06:56:00,599 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 247.5) internal successors, (495), 2 states have internal predecessors, (495), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 06:56:00,604 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 258.0) internal successors, (774), 3 states have internal predecessors, (774), 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) [2022-01-19 06:56:00,605 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 258.0) internal successors, (774), 3 states have internal predecessors, (774), 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) [2022-01-19 06:56:00,606 INFO L186 Difference]: Start difference. First operand has 233 places, 247 transitions, 506 flow. Second operand 2 states and 495 transitions. [2022-01-19 06:56:00,606 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 234 places, 232 transitions, 484 flow [2022-01-19 06:56:00,613 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 230 places, 232 transitions, 476 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-01-19 06:56:00,617 INFO L242 Difference]: Finished difference. Result has 230 places, 225 transitions, 454 flow [2022-01-19 06:56:00,619 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=258, PETRI_DIFFERENCE_MINUEND_FLOW=468, PETRI_DIFFERENCE_MINUEND_PLACES=229, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=232, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=232, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=454, PETRI_PLACES=230, PETRI_TRANSITIONS=225} [2022-01-19 06:56:00,621 INFO L334 CegarLoopForPetriNet]: 233 programPoint places, -3 predicate places. [2022-01-19 06:56:00,621 INFO L470 AbstractCegarLoop]: Abstraction has has 230 places, 225 transitions, 454 flow [2022-01-19 06:56:00,622 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 241.5) internal successors, (483), 2 states have internal predecessors, (483), 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) [2022-01-19 06:56:00,622 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 06:56:00,622 INFO L254 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-19 06:56:00,622 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-01-19 06:56:00,623 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-19 06:56:00,623 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 06:56:00,623 INFO L85 PathProgramCache]: Analyzing trace with hash -38155261, now seen corresponding path program 1 times [2022-01-19 06:56:00,623 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 06:56:00,624 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [673032513] [2022-01-19 06:56:00,624 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 06:56:00,624 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 06:56:00,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 06:56:01,152 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-19 06:56:01,152 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 06:56:01,153 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [673032513] [2022-01-19 06:56:01,153 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [673032513] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 06:56:01,153 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 06:56:01,153 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2022-01-19 06:56:01,153 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [458498360] [2022-01-19 06:56:01,153 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 06:56:01,154 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2022-01-19 06:56:01,154 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 06:56:01,155 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2022-01-19 06:56:01,155 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=332, Unknown=0, NotChecked=0, Total=380 [2022-01-19 06:56:01,159 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 169 out of 258 [2022-01-19 06:56:01,163 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 230 places, 225 transitions, 454 flow. Second operand has 20 states, 20 states have (on average 171.7) internal successors, (3434), 20 states have internal predecessors, (3434), 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) [2022-01-19 06:56:01,163 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 06:56:01,163 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 169 of 258 [2022-01-19 06:56:01,163 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 06:56:02,292 INFO L129 PetriNetUnfolder]: 144/1812 cut-off events. [2022-01-19 06:56:02,292 INFO L130 PetriNetUnfolder]: For 28/34 co-relation queries the response was YES. [2022-01-19 06:56:02,297 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2177 conditions, 1812 events. 144/1812 cut-off events. For 28/34 co-relation queries the response was YES. Maximal size of possible extension queue 48. Compared 13704 event pairs, 57 based on Foata normal form. 1/1645 useless extension candidates. Maximal degree in co-relation 2174. Up to 94 conditions per place. [2022-01-19 06:56:02,303 INFO L132 encePairwiseOnDemand]: 231/258 looper letters, 141 selfloop transitions, 27 changer transitions 12/339 dead transitions. [2022-01-19 06:56:02,303 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 246 places, 339 transitions, 1055 flow [2022-01-19 06:56:02,303 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-01-19 06:56:02,303 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2022-01-19 06:56:02,309 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 4237 transitions. [2022-01-19 06:56:02,310 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.6842700258397932 [2022-01-19 06:56:02,311 INFO L72 ComplementDD]: Start complementDD. Operand 24 states and 4237 transitions. [2022-01-19 06:56:02,311 INFO L73 IsDeterministic]: Start isDeterministic. Operand 24 states and 4237 transitions. [2022-01-19 06:56:02,312 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 06:56:02,312 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 24 states and 4237 transitions. [2022-01-19 06:56:02,320 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 25 states, 24 states have (on average 176.54166666666666) internal successors, (4237), 24 states have internal predecessors, (4237), 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) [2022-01-19 06:56:02,330 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 25 states, 25 states have (on average 258.0) internal successors, (6450), 25 states have internal predecessors, (6450), 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) [2022-01-19 06:56:02,333 INFO L81 ComplementDD]: Finished complementDD. Result has 25 states, 25 states have (on average 258.0) internal successors, (6450), 25 states have internal predecessors, (6450), 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) [2022-01-19 06:56:02,333 INFO L186 Difference]: Start difference. First operand has 230 places, 225 transitions, 454 flow. Second operand 24 states and 4237 transitions. [2022-01-19 06:56:02,334 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 246 places, 339 transitions, 1055 flow [2022-01-19 06:56:02,336 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 246 places, 339 transitions, 1055 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-01-19 06:56:02,343 INFO L242 Difference]: Finished difference. Result has 258 places, 241 transitions, 602 flow [2022-01-19 06:56:02,343 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=258, PETRI_DIFFERENCE_MINUEND_FLOW=454, PETRI_DIFFERENCE_MINUEND_PLACES=223, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=225, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=201, PETRI_DIFFERENCE_SUBTRAHEND_STATES=24, PETRI_FLOW=602, PETRI_PLACES=258, PETRI_TRANSITIONS=241} [2022-01-19 06:56:02,344 INFO L334 CegarLoopForPetriNet]: 233 programPoint places, 25 predicate places. [2022-01-19 06:56:02,344 INFO L470 AbstractCegarLoop]: Abstraction has has 258 places, 241 transitions, 602 flow [2022-01-19 06:56:02,345 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 171.7) internal successors, (3434), 20 states have internal predecessors, (3434), 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) [2022-01-19 06:56:02,345 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 06:56:02,345 INFO L254 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-19 06:56:02,345 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-01-19 06:56:02,346 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-19 06:56:02,346 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 06:56:02,347 INFO L85 PathProgramCache]: Analyzing trace with hash -396505431, now seen corresponding path program 2 times [2022-01-19 06:56:02,347 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 06:56:02,347 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [344809569] [2022-01-19 06:56:02,347 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 06:56:02,347 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 06:56:02,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 06:56:02,709 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-19 06:56:02,710 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 06:56:02,710 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [344809569] [2022-01-19 06:56:02,710 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [344809569] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 06:56:02,710 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 06:56:02,710 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2022-01-19 06:56:02,710 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [302738635] [2022-01-19 06:56:02,710 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 06:56:02,711 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2022-01-19 06:56:02,711 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 06:56:02,711 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2022-01-19 06:56:02,711 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=332, Unknown=0, NotChecked=0, Total=380 [2022-01-19 06:56:02,714 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 169 out of 258 [2022-01-19 06:56:02,716 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 258 places, 241 transitions, 602 flow. Second operand has 20 states, 20 states have (on average 171.7) internal successors, (3434), 20 states have internal predecessors, (3434), 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) [2022-01-19 06:56:02,717 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 06:56:02,717 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 169 of 258 [2022-01-19 06:56:02,717 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 06:56:03,598 INFO L129 PetriNetUnfolder]: 140/1844 cut-off events. [2022-01-19 06:56:03,598 INFO L130 PetriNetUnfolder]: For 205/213 co-relation queries the response was YES. [2022-01-19 06:56:03,604 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2419 conditions, 1844 events. 140/1844 cut-off events. For 205/213 co-relation queries the response was YES. Maximal size of possible extension queue 48. Compared 13763 event pairs, 54 based on Foata normal form. 5/1688 useless extension candidates. Maximal degree in co-relation 2403. Up to 94 conditions per place. [2022-01-19 06:56:03,608 INFO L132 encePairwiseOnDemand]: 231/258 looper letters, 140 selfloop transitions, 29 changer transitions 12/340 dead transitions. [2022-01-19 06:56:03,608 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 279 places, 340 transitions, 1224 flow [2022-01-19 06:56:03,608 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-01-19 06:56:03,608 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2022-01-19 06:56:03,613 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 4236 transitions. [2022-01-19 06:56:03,614 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.6841085271317829 [2022-01-19 06:56:03,615 INFO L72 ComplementDD]: Start complementDD. Operand 24 states and 4236 transitions. [2022-01-19 06:56:03,615 INFO L73 IsDeterministic]: Start isDeterministic. Operand 24 states and 4236 transitions. [2022-01-19 06:56:03,616 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 06:56:03,616 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 24 states and 4236 transitions. [2022-01-19 06:56:03,622 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 25 states, 24 states have (on average 176.5) internal successors, (4236), 24 states have internal predecessors, (4236), 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) [2022-01-19 06:56:03,628 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 25 states, 25 states have (on average 258.0) internal successors, (6450), 25 states have internal predecessors, (6450), 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) [2022-01-19 06:56:03,629 INFO L81 ComplementDD]: Finished complementDD. Result has 25 states, 25 states have (on average 258.0) internal successors, (6450), 25 states have internal predecessors, (6450), 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) [2022-01-19 06:56:03,629 INFO L186 Difference]: Start difference. First operand has 258 places, 241 transitions, 602 flow. Second operand 24 states and 4236 transitions. [2022-01-19 06:56:03,629 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 279 places, 340 transitions, 1224 flow [2022-01-19 06:56:03,632 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 270 places, 340 transitions, 1190 flow, removed 9 selfloop flow, removed 9 redundant places. [2022-01-19 06:56:03,636 INFO L242 Difference]: Finished difference. Result has 275 places, 246 transitions, 695 flow [2022-01-19 06:56:03,636 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=258, PETRI_DIFFERENCE_MINUEND_FLOW=582, PETRI_DIFFERENCE_MINUEND_PLACES=247, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=241, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=24, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=213, PETRI_DIFFERENCE_SUBTRAHEND_STATES=24, PETRI_FLOW=695, PETRI_PLACES=275, PETRI_TRANSITIONS=246} [2022-01-19 06:56:03,637 INFO L334 CegarLoopForPetriNet]: 233 programPoint places, 42 predicate places. [2022-01-19 06:56:03,637 INFO L470 AbstractCegarLoop]: Abstraction has has 275 places, 246 transitions, 695 flow [2022-01-19 06:56:03,638 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 171.7) internal successors, (3434), 20 states have internal predecessors, (3434), 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) [2022-01-19 06:56:03,638 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 06:56:03,638 INFO L254 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-19 06:56:03,638 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-01-19 06:56:03,639 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-19 06:56:03,639 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 06:56:03,639 INFO L85 PathProgramCache]: Analyzing trace with hash -1149379413, now seen corresponding path program 1 times [2022-01-19 06:56:03,639 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 06:56:03,639 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [872519849] [2022-01-19 06:56:03,639 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 06:56:03,639 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 06:56:03,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 06:56:03,800 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-19 06:56:03,800 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 06:56:03,801 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [872519849] [2022-01-19 06:56:03,801 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [872519849] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-19 06:56:03,801 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [993959073] [2022-01-19 06:56:03,801 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 06:56:03,801 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-19 06:56:03,801 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-19 06:56:03,802 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-19 06:56:03,812 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-01-19 06:56:03,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 06:56:03,901 INFO L263 TraceCheckSpWp]: Trace formula consists of 294 conjuncts, 16 conjunts are in the unsatisfiable core [2022-01-19 06:56:03,906 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-19 06:56:04,365 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-19 06:56:04,365 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-19 06:56:04,724 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-19 06:56:04,724 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [993959073] provided 1 perfect and 1 imperfect interpolant sequences [2022-01-19 06:56:04,724 INFO L186 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-01-19 06:56:04,724 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [15, 14] total 30 [2022-01-19 06:56:04,725 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [338874658] [2022-01-19 06:56:04,725 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 06:56:04,725 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-01-19 06:56:04,725 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 06:56:04,726 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-01-19 06:56:04,726 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=128, Invalid=742, Unknown=0, NotChecked=0, Total=870 [2022-01-19 06:56:04,728 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 169 out of 258 [2022-01-19 06:56:04,729 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 275 places, 246 transitions, 695 flow. Second operand has 14 states, 14 states have (on average 173.14285714285714) internal successors, (2424), 14 states have internal predecessors, (2424), 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) [2022-01-19 06:56:04,730 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 06:56:04,730 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 169 of 258 [2022-01-19 06:56:04,730 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 06:56:05,292 INFO L129 PetriNetUnfolder]: 191/2490 cut-off events. [2022-01-19 06:56:05,292 INFO L130 PetriNetUnfolder]: For 618/640 co-relation queries the response was YES. [2022-01-19 06:56:05,302 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3372 conditions, 2490 events. 191/2490 cut-off events. For 618/640 co-relation queries the response was YES. Maximal size of possible extension queue 64. Compared 20868 event pairs, 83 based on Foata normal form. 3/2268 useless extension candidates. Maximal degree in co-relation 3353. Up to 223 conditions per place. [2022-01-19 06:56:05,309 INFO L132 encePairwiseOnDemand]: 239/258 looper letters, 149 selfloop transitions, 25 changer transitions 8/341 dead transitions. [2022-01-19 06:56:05,309 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 290 places, 341 transitions, 1339 flow [2022-01-19 06:56:05,309 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-01-19 06:56:05,309 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2022-01-19 06:56:05,313 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 3212 transitions. [2022-01-19 06:56:05,314 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.6916451335055986 [2022-01-19 06:56:05,314 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 3212 transitions. [2022-01-19 06:56:05,314 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 3212 transitions. [2022-01-19 06:56:05,316 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 06:56:05,316 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 3212 transitions. [2022-01-19 06:56:05,320 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 19 states, 18 states have (on average 178.44444444444446) internal successors, (3212), 18 states have internal predecessors, (3212), 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) [2022-01-19 06:56:05,326 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 19 states, 19 states have (on average 258.0) internal successors, (4902), 19 states have internal predecessors, (4902), 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) [2022-01-19 06:56:05,327 INFO L81 ComplementDD]: Finished complementDD. Result has 19 states, 19 states have (on average 258.0) internal successors, (4902), 19 states have internal predecessors, (4902), 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) [2022-01-19 06:56:05,327 INFO L186 Difference]: Start difference. First operand has 275 places, 246 transitions, 695 flow. Second operand 18 states and 3212 transitions. [2022-01-19 06:56:05,328 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 290 places, 341 transitions, 1339 flow [2022-01-19 06:56:05,333 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 270 places, 341 transitions, 1278 flow, removed 9 selfloop flow, removed 20 redundant places. [2022-01-19 06:56:05,336 INFO L242 Difference]: Finished difference. Result has 275 places, 257 transitions, 777 flow [2022-01-19 06:56:05,337 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=258, PETRI_DIFFERENCE_MINUEND_FLOW=646, PETRI_DIFFERENCE_MINUEND_PLACES=253, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=246, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=16, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=226, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=777, PETRI_PLACES=275, PETRI_TRANSITIONS=257} [2022-01-19 06:56:05,338 INFO L334 CegarLoopForPetriNet]: 233 programPoint places, 42 predicate places. [2022-01-19 06:56:05,338 INFO L470 AbstractCegarLoop]: Abstraction has has 275 places, 257 transitions, 777 flow [2022-01-19 06:56:05,339 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 173.14285714285714) internal successors, (2424), 14 states have internal predecessors, (2424), 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) [2022-01-19 06:56:05,339 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 06:56:05,339 INFO L254 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-19 06:56:05,388 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-01-19 06:56:05,547 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-19 06:56:05,548 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-19 06:56:05,548 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 06:56:05,548 INFO L85 PathProgramCache]: Analyzing trace with hash -1377745900, now seen corresponding path program 1 times [2022-01-19 06:56:05,548 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 06:56:05,548 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [394610472] [2022-01-19 06:56:05,549 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 06:56:05,549 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 06:56:05,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 06:56:05,719 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-19 06:56:05,719 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 06:56:05,719 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [394610472] [2022-01-19 06:56:05,719 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [394610472] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-19 06:56:05,719 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [691930297] [2022-01-19 06:56:05,720 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 06:56:05,720 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-19 06:56:05,720 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-19 06:56:05,721 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-19 06:56:05,722 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-01-19 06:56:05,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 06:56:05,809 INFO L263 TraceCheckSpWp]: Trace formula consists of 294 conjuncts, 16 conjunts are in the unsatisfiable core [2022-01-19 06:56:05,819 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-19 06:56:06,177 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-19 06:56:06,177 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-19 06:56:06,494 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-19 06:56:06,494 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [691930297] provided 1 perfect and 1 imperfect interpolant sequences [2022-01-19 06:56:06,494 INFO L186 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-01-19 06:56:06,494 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [15, 14] total 30 [2022-01-19 06:56:06,494 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [136675421] [2022-01-19 06:56:06,494 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 06:56:06,495 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-01-19 06:56:06,495 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 06:56:06,495 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-01-19 06:56:06,495 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=128, Invalid=742, Unknown=0, NotChecked=0, Total=870 [2022-01-19 06:56:06,497 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 169 out of 258 [2022-01-19 06:56:06,498 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 275 places, 257 transitions, 777 flow. Second operand has 14 states, 14 states have (on average 173.14285714285714) internal successors, (2424), 14 states have internal predecessors, (2424), 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) [2022-01-19 06:56:06,498 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 06:56:06,498 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 169 of 258 [2022-01-19 06:56:06,498 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 06:56:07,090 INFO L129 PetriNetUnfolder]: 200/2648 cut-off events. [2022-01-19 06:56:07,090 INFO L130 PetriNetUnfolder]: For 1162/1203 co-relation queries the response was YES. [2022-01-19 06:56:07,101 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3729 conditions, 2648 events. 200/2648 cut-off events. For 1162/1203 co-relation queries the response was YES. Maximal size of possible extension queue 73. Compared 22660 event pairs, 88 based on Foata normal form. 4/2409 useless extension candidates. Maximal degree in co-relation 3707. Up to 188 conditions per place. [2022-01-19 06:56:07,108 INFO L132 encePairwiseOnDemand]: 236/258 looper letters, 149 selfloop transitions, 27 changer transitions 4/339 dead transitions. [2022-01-19 06:56:07,108 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 292 places, 339 transitions, 1397 flow [2022-01-19 06:56:07,108 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-01-19 06:56:07,108 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2022-01-19 06:56:07,112 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 3546 transitions. [2022-01-19 06:56:07,114 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.6872093023255814 [2022-01-19 06:56:07,114 INFO L72 ComplementDD]: Start complementDD. Operand 20 states and 3546 transitions. [2022-01-19 06:56:07,114 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 3546 transitions. [2022-01-19 06:56:07,115 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 06:56:07,115 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 20 states and 3546 transitions. [2022-01-19 06:56:07,120 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 21 states, 20 states have (on average 177.3) internal successors, (3546), 20 states have internal predecessors, (3546), 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) [2022-01-19 06:56:07,126 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 21 states, 21 states have (on average 258.0) internal successors, (5418), 21 states have internal predecessors, (5418), 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) [2022-01-19 06:56:07,126 INFO L81 ComplementDD]: Finished complementDD. Result has 21 states, 21 states have (on average 258.0) internal successors, (5418), 21 states have internal predecessors, (5418), 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) [2022-01-19 06:56:07,127 INFO L186 Difference]: Start difference. First operand has 275 places, 257 transitions, 777 flow. Second operand 20 states and 3546 transitions. [2022-01-19 06:56:07,127 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 292 places, 339 transitions, 1397 flow [2022-01-19 06:56:07,131 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 283 places, 339 transitions, 1336 flow, removed 21 selfloop flow, removed 9 redundant places. [2022-01-19 06:56:07,134 INFO L242 Difference]: Finished difference. Result has 289 places, 263 transitions, 861 flow [2022-01-19 06:56:07,134 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=258, PETRI_DIFFERENCE_MINUEND_FLOW=728, PETRI_DIFFERENCE_MINUEND_PLACES=264, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=257, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=22, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=231, PETRI_DIFFERENCE_SUBTRAHEND_STATES=20, PETRI_FLOW=861, PETRI_PLACES=289, PETRI_TRANSITIONS=263} [2022-01-19 06:56:07,135 INFO L334 CegarLoopForPetriNet]: 233 programPoint places, 56 predicate places. [2022-01-19 06:56:07,135 INFO L470 AbstractCegarLoop]: Abstraction has has 289 places, 263 transitions, 861 flow [2022-01-19 06:56:07,135 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 173.14285714285714) internal successors, (2424), 14 states have internal predecessors, (2424), 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) [2022-01-19 06:56:07,135 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 06:56:07,136 INFO L254 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-19 06:56:07,157 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-01-19 06:56:07,351 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-19 06:56:07,351 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-19 06:56:07,352 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 06:56:07,352 INFO L85 PathProgramCache]: Analyzing trace with hash -569678055, now seen corresponding path program 2 times [2022-01-19 06:56:07,352 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 06:56:07,352 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1358589638] [2022-01-19 06:56:07,352 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 06:56:07,352 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 06:56:07,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 06:56:07,483 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-19 06:56:07,483 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 06:56:07,483 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1358589638] [2022-01-19 06:56:07,483 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1358589638] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-19 06:56:07,483 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1564847861] [2022-01-19 06:56:07,484 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-01-19 06:56:07,484 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-19 06:56:07,484 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-19 06:56:07,485 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-19 06:56:07,486 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-01-19 06:56:07,555 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-01-19 06:56:07,556 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-01-19 06:56:07,557 INFO L263 TraceCheckSpWp]: Trace formula consists of 281 conjuncts, 19 conjunts are in the unsatisfiable core [2022-01-19 06:56:07,559 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-19 06:56:07,959 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-01-19 06:56:07,959 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-19 06:56:07,959 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1564847861] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 06:56:07,959 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-01-19 06:56:07,959 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [15] total 25 [2022-01-19 06:56:07,960 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [372999510] [2022-01-19 06:56:07,960 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 06:56:07,960 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-01-19 06:56:07,960 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 06:56:07,960 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-01-19 06:56:07,960 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=536, Unknown=0, NotChecked=0, Total=600 [2022-01-19 06:56:07,962 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 187 out of 258 [2022-01-19 06:56:07,963 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 289 places, 263 transitions, 861 flow. Second operand has 12 states, 12 states have (on average 190.66666666666666) internal successors, (2288), 12 states have internal predecessors, (2288), 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) [2022-01-19 06:56:07,963 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 06:56:07,963 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 187 of 258 [2022-01-19 06:56:07,963 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 06:56:08,550 INFO L129 PetriNetUnfolder]: 218/3074 cut-off events. [2022-01-19 06:56:08,550 INFO L130 PetriNetUnfolder]: For 1651/1706 co-relation queries the response was YES. [2022-01-19 06:56:08,562 INFO L84 FinitePrefix]: Finished finitePrefix Result has 4419 conditions, 3074 events. 218/3074 cut-off events. For 1651/1706 co-relation queries the response was YES. Maximal size of possible extension queue 74. Compared 26695 event pairs, 27 based on Foata normal form. 15/2813 useless extension candidates. Maximal degree in co-relation 4394. Up to 241 conditions per place. [2022-01-19 06:56:08,568 INFO L132 encePairwiseOnDemand]: 243/258 looper letters, 82 selfloop transitions, 20 changer transitions 12/305 dead transitions. [2022-01-19 06:56:08,569 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 300 places, 305 transitions, 1280 flow [2022-01-19 06:56:08,569 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-01-19 06:56:08,569 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2022-01-19 06:56:08,573 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 2705 transitions. [2022-01-19 06:56:08,573 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7488925802879292 [2022-01-19 06:56:08,573 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 2705 transitions. [2022-01-19 06:56:08,573 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 2705 transitions. [2022-01-19 06:56:08,575 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 06:56:08,575 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 2705 transitions. [2022-01-19 06:56:08,578 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 193.21428571428572) internal successors, (2705), 14 states have internal predecessors, (2705), 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) [2022-01-19 06:56:08,583 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 258.0) internal successors, (3870), 15 states have internal predecessors, (3870), 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) [2022-01-19 06:56:08,583 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 258.0) internal successors, (3870), 15 states have internal predecessors, (3870), 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) [2022-01-19 06:56:08,583 INFO L186 Difference]: Start difference. First operand has 289 places, 263 transitions, 861 flow. Second operand 14 states and 2705 transitions. [2022-01-19 06:56:08,583 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 300 places, 305 transitions, 1280 flow [2022-01-19 06:56:08,589 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 291 places, 305 transitions, 1207 flow, removed 28 selfloop flow, removed 9 redundant places. [2022-01-19 06:56:08,592 INFO L242 Difference]: Finished difference. Result has 303 places, 270 transitions, 980 flow [2022-01-19 06:56:08,593 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=258, PETRI_DIFFERENCE_MINUEND_FLOW=808, PETRI_DIFFERENCE_MINUEND_PLACES=278, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=263, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=244, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=980, PETRI_PLACES=303, PETRI_TRANSITIONS=270} [2022-01-19 06:56:08,594 INFO L334 CegarLoopForPetriNet]: 233 programPoint places, 70 predicate places. [2022-01-19 06:56:08,594 INFO L470 AbstractCegarLoop]: Abstraction has has 303 places, 270 transitions, 980 flow [2022-01-19 06:56:08,595 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 190.66666666666666) internal successors, (2288), 12 states have internal predecessors, (2288), 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) [2022-01-19 06:56:08,595 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 06:56:08,595 INFO L254 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-19 06:56:08,614 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-01-19 06:56:08,807 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-19 06:56:08,807 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-19 06:56:08,808 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 06:56:08,808 INFO L85 PathProgramCache]: Analyzing trace with hash 63845340, now seen corresponding path program 1 times [2022-01-19 06:56:08,808 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 06:56:08,808 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [888582950] [2022-01-19 06:56:08,808 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 06:56:08,808 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 06:56:08,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 06:56:08,917 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-19 06:56:08,917 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 06:56:08,917 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [888582950] [2022-01-19 06:56:08,917 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [888582950] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-19 06:56:08,917 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1046581296] [2022-01-19 06:56:08,917 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 06:56:08,918 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-19 06:56:08,918 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-19 06:56:08,918 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-19 06:56:08,947 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-01-19 06:56:09,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 06:56:09,010 INFO L263 TraceCheckSpWp]: Trace formula consists of 307 conjuncts, 10 conjunts are in the unsatisfiable core [2022-01-19 06:56:09,011 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-19 06:56:09,300 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-19 06:56:09,300 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-19 06:56:09,662 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-19 06:56:09,663 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1046581296] provided 1 perfect and 1 imperfect interpolant sequences [2022-01-19 06:56:09,663 INFO L186 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-01-19 06:56:09,663 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [13, 11] total 23 [2022-01-19 06:56:09,663 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [8992555] [2022-01-19 06:56:09,663 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 06:56:09,663 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-19 06:56:09,663 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 06:56:09,663 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-19 06:56:09,664 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=121, Invalid=385, Unknown=0, NotChecked=0, Total=506 [2022-01-19 06:56:09,665 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 197 out of 258 [2022-01-19 06:56:09,666 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 303 places, 270 transitions, 980 flow. Second operand has 11 states, 11 states have (on average 200.36363636363637) internal successors, (2204), 11 states have internal predecessors, (2204), 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) [2022-01-19 06:56:09,666 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 06:56:09,666 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 197 of 258 [2022-01-19 06:56:09,666 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 06:56:10,358 INFO L129 PetriNetUnfolder]: 375/4060 cut-off events. [2022-01-19 06:56:10,359 INFO L130 PetriNetUnfolder]: For 2235/2238 co-relation queries the response was YES. [2022-01-19 06:56:10,376 INFO L84 FinitePrefix]: Finished finitePrefix Result has 5954 conditions, 4060 events. 375/4060 cut-off events. For 2235/2238 co-relation queries the response was YES. Maximal size of possible extension queue 103. Compared 39507 event pairs, 125 based on Foata normal form. 1/3691 useless extension candidates. Maximal degree in co-relation 5918. Up to 202 conditions per place. [2022-01-19 06:56:10,385 INFO L132 encePairwiseOnDemand]: 243/258 looper letters, 110 selfloop transitions, 22 changer transitions 0/330 dead transitions. [2022-01-19 06:56:10,385 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 310 places, 330 transitions, 1475 flow [2022-01-19 06:56:10,385 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-01-19 06:56:10,385 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2022-01-19 06:56:10,388 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 3661 transitions. [2022-01-19 06:56:10,389 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7883290267011197 [2022-01-19 06:56:10,389 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 3661 transitions. [2022-01-19 06:56:10,389 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 3661 transitions. [2022-01-19 06:56:10,389 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 06:56:10,390 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 3661 transitions. [2022-01-19 06:56:10,393 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 19 states, 18 states have (on average 203.38888888888889) internal successors, (3661), 18 states have internal predecessors, (3661), 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) [2022-01-19 06:56:10,397 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 19 states, 19 states have (on average 258.0) internal successors, (4902), 19 states have internal predecessors, (4902), 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) [2022-01-19 06:56:10,398 INFO L81 ComplementDD]: Finished complementDD. Result has 19 states, 19 states have (on average 258.0) internal successors, (4902), 19 states have internal predecessors, (4902), 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) [2022-01-19 06:56:10,398 INFO L186 Difference]: Start difference. First operand has 303 places, 270 transitions, 980 flow. Second operand 18 states and 3661 transitions. [2022-01-19 06:56:10,398 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 310 places, 330 transitions, 1475 flow [2022-01-19 06:56:10,406 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 299 places, 330 transitions, 1423 flow, removed 19 selfloop flow, removed 11 redundant places. [2022-01-19 06:56:10,409 INFO L242 Difference]: Finished difference. Result has 301 places, 276 transitions, 999 flow [2022-01-19 06:56:10,410 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=258, PETRI_DIFFERENCE_MINUEND_FLOW=930, PETRI_DIFFERENCE_MINUEND_PLACES=282, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=270, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=17, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=252, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=999, PETRI_PLACES=301, PETRI_TRANSITIONS=276} [2022-01-19 06:56:10,410 INFO L334 CegarLoopForPetriNet]: 233 programPoint places, 68 predicate places. [2022-01-19 06:56:10,410 INFO L470 AbstractCegarLoop]: Abstraction has has 301 places, 276 transitions, 999 flow [2022-01-19 06:56:10,411 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 200.36363636363637) internal successors, (2204), 11 states have internal predecessors, (2204), 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) [2022-01-19 06:56:10,411 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 06:56:10,411 INFO L254 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-19 06:56:10,445 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-01-19 06:56:10,627 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-19 06:56:10,628 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-19 06:56:10,628 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 06:56:10,628 INFO L85 PathProgramCache]: Analyzing trace with hash -1514417794, now seen corresponding path program 1 times [2022-01-19 06:56:10,628 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 06:56:10,628 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1523113827] [2022-01-19 06:56:10,628 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 06:56:10,628 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 06:56:10,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 06:56:10,743 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-01-19 06:56:10,743 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 06:56:10,743 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1523113827] [2022-01-19 06:56:10,743 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1523113827] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-19 06:56:10,743 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1246584290] [2022-01-19 06:56:10,743 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 06:56:10,743 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-19 06:56:10,744 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-19 06:56:10,760 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-19 06:56:10,761 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-01-19 06:56:10,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 06:56:10,833 INFO L263 TraceCheckSpWp]: Trace formula consists of 322 conjuncts, 10 conjunts are in the unsatisfiable core [2022-01-19 06:56:10,835 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-19 06:56:11,191 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-01-19 06:56:11,191 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-19 06:56:11,630 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-01-19 06:56:11,630 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1246584290] provided 1 perfect and 1 imperfect interpolant sequences [2022-01-19 06:56:11,630 INFO L186 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-01-19 06:56:11,631 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [13, 11] total 23 [2022-01-19 06:56:11,631 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [502164851] [2022-01-19 06:56:11,631 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 06:56:11,631 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-19 06:56:11,631 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 06:56:11,631 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-19 06:56:11,632 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=123, Invalid=383, Unknown=0, NotChecked=0, Total=506 [2022-01-19 06:56:11,633 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 197 out of 258 [2022-01-19 06:56:11,634 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 301 places, 276 transitions, 999 flow. Second operand has 11 states, 11 states have (on average 200.45454545454547) internal successors, (2205), 11 states have internal predecessors, (2205), 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) [2022-01-19 06:56:11,634 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 06:56:11,634 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 197 of 258 [2022-01-19 06:56:11,634 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 06:56:12,358 INFO L129 PetriNetUnfolder]: 417/3886 cut-off events. [2022-01-19 06:56:12,358 INFO L130 PetriNetUnfolder]: For 1801/1814 co-relation queries the response was YES. [2022-01-19 06:56:12,373 INFO L84 FinitePrefix]: Finished finitePrefix Result has 5832 conditions, 3886 events. 417/3886 cut-off events. For 1801/1814 co-relation queries the response was YES. Maximal size of possible extension queue 107. Compared 36220 event pairs, 125 based on Foata normal form. 8/3603 useless extension candidates. Maximal degree in co-relation 5804. Up to 234 conditions per place. [2022-01-19 06:56:12,382 INFO L132 encePairwiseOnDemand]: 243/258 looper letters, 108 selfloop transitions, 22 changer transitions 0/331 dead transitions. [2022-01-19 06:56:12,382 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 318 places, 331 transitions, 1473 flow [2022-01-19 06:56:12,382 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-01-19 06:56:12,382 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2022-01-19 06:56:12,384 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 3658 transitions. [2022-01-19 06:56:12,385 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7876830318690784 [2022-01-19 06:56:12,385 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 3658 transitions. [2022-01-19 06:56:12,385 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 3658 transitions. [2022-01-19 06:56:12,385 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 06:56:12,385 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 3658 transitions. [2022-01-19 06:56:12,389 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 19 states, 18 states have (on average 203.22222222222223) internal successors, (3658), 18 states have internal predecessors, (3658), 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) [2022-01-19 06:56:12,392 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 19 states, 19 states have (on average 258.0) internal successors, (4902), 19 states have internal predecessors, (4902), 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) [2022-01-19 06:56:12,393 INFO L81 ComplementDD]: Finished complementDD. Result has 19 states, 19 states have (on average 258.0) internal successors, (4902), 19 states have internal predecessors, (4902), 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) [2022-01-19 06:56:12,393 INFO L186 Difference]: Start difference. First operand has 301 places, 276 transitions, 999 flow. Second operand 18 states and 3658 transitions. [2022-01-19 06:56:12,393 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 318 places, 331 transitions, 1473 flow [2022-01-19 06:56:12,399 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 308 places, 331 transitions, 1448 flow, removed 0 selfloop flow, removed 10 redundant places. [2022-01-19 06:56:12,401 INFO L242 Difference]: Finished difference. Result has 310 places, 282 transitions, 1043 flow [2022-01-19 06:56:12,402 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=258, PETRI_DIFFERENCE_MINUEND_FLOW=974, PETRI_DIFFERENCE_MINUEND_PLACES=291, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=276, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=17, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=258, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=1043, PETRI_PLACES=310, PETRI_TRANSITIONS=282} [2022-01-19 06:56:12,402 INFO L334 CegarLoopForPetriNet]: 233 programPoint places, 77 predicate places. [2022-01-19 06:56:12,402 INFO L470 AbstractCegarLoop]: Abstraction has has 310 places, 282 transitions, 1043 flow [2022-01-19 06:56:12,403 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 200.45454545454547) internal successors, (2205), 11 states have internal predecessors, (2205), 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) [2022-01-19 06:56:12,403 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 06:56:12,403 INFO L254 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-19 06:56:12,423 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-01-19 06:56:12,621 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-19 06:56:12,621 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-19 06:56:12,622 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 06:56:12,622 INFO L85 PathProgramCache]: Analyzing trace with hash -1028852358, now seen corresponding path program 1 times [2022-01-19 06:56:12,622 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 06:56:12,622 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1675853773] [2022-01-19 06:56:12,622 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 06:56:12,622 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 06:56:12,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 06:56:12,915 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-01-19 06:56:12,915 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 06:56:12,915 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1675853773] [2022-01-19 06:56:12,915 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1675853773] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-19 06:56:12,915 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [374152483] [2022-01-19 06:56:12,916 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 06:56:12,916 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-19 06:56:12,916 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-19 06:56:12,917 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-19 06:56:12,918 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-01-19 06:56:12,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 06:56:12,991 INFO L263 TraceCheckSpWp]: Trace formula consists of 337 conjuncts, 29 conjunts are in the unsatisfiable core [2022-01-19 06:56:12,993 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-19 06:56:14,034 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-01-19 06:56:14,034 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-19 06:56:15,070 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-01-19 06:56:15,070 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [374152483] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-19 06:56:15,071 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-19 06:56:15,071 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 20, 20] total 43 [2022-01-19 06:56:15,071 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [793091794] [2022-01-19 06:56:15,071 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-19 06:56:15,072 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 43 states [2022-01-19 06:56:15,072 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 06:56:15,073 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 43 interpolants. [2022-01-19 06:56:15,073 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=255, Invalid=1551, Unknown=0, NotChecked=0, Total=1806 [2022-01-19 06:56:15,076 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 167 out of 258 [2022-01-19 06:56:15,079 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 310 places, 282 transitions, 1043 flow. Second operand has 43 states, 43 states have (on average 170.13953488372093) internal successors, (7316), 43 states have internal predecessors, (7316), 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) [2022-01-19 06:56:15,079 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 06:56:15,079 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 167 of 258 [2022-01-19 06:56:15,079 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 06:56:17,032 INFO L129 PetriNetUnfolder]: 401/5678 cut-off events. [2022-01-19 06:56:17,032 INFO L130 PetriNetUnfolder]: For 3621/3705 co-relation queries the response was YES. [2022-01-19 06:56:17,054 INFO L84 FinitePrefix]: Finished finitePrefix Result has 8683 conditions, 5678 events. 401/5678 cut-off events. For 3621/3705 co-relation queries the response was YES. Maximal size of possible extension queue 120. Compared 58249 event pairs, 176 based on Foata normal form. 14/5311 useless extension candidates. Maximal degree in co-relation 8653. Up to 580 conditions per place. [2022-01-19 06:56:17,064 INFO L132 encePairwiseOnDemand]: 234/258 looper letters, 223 selfloop transitions, 49 changer transitions 12/447 dead transitions. [2022-01-19 06:56:17,064 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 342 places, 447 transitions, 2378 flow [2022-01-19 06:56:17,064 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2022-01-19 06:56:17,064 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33 states. [2022-01-19 06:56:17,067 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 5732 transitions. [2022-01-19 06:56:17,068 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.6732440685929058 [2022-01-19 06:56:17,068 INFO L72 ComplementDD]: Start complementDD. Operand 33 states and 5732 transitions. [2022-01-19 06:56:17,068 INFO L73 IsDeterministic]: Start isDeterministic. Operand 33 states and 5732 transitions. [2022-01-19 06:56:17,069 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 06:56:17,069 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 33 states and 5732 transitions. [2022-01-19 06:56:17,074 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 34 states, 33 states have (on average 173.6969696969697) internal successors, (5732), 33 states have internal predecessors, (5732), 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) [2022-01-19 06:56:17,082 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 34 states, 34 states have (on average 258.0) internal successors, (8772), 34 states have internal predecessors, (8772), 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) [2022-01-19 06:56:17,083 INFO L81 ComplementDD]: Finished complementDD. Result has 34 states, 34 states have (on average 258.0) internal successors, (8772), 34 states have internal predecessors, (8772), 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) [2022-01-19 06:56:17,083 INFO L186 Difference]: Start difference. First operand has 310 places, 282 transitions, 1043 flow. Second operand 33 states and 5732 transitions. [2022-01-19 06:56:17,083 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 342 places, 447 transitions, 2378 flow [2022-01-19 06:56:17,091 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 331 places, 447 transitions, 2344 flow, removed 0 selfloop flow, removed 11 redundant places. [2022-01-19 06:56:17,095 INFO L242 Difference]: Finished difference. Result has 343 places, 309 transitions, 1389 flow [2022-01-19 06:56:17,095 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=258, PETRI_DIFFERENCE_MINUEND_FLOW=1018, PETRI_DIFFERENCE_MINUEND_PLACES=299, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=282, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=23, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=246, PETRI_DIFFERENCE_SUBTRAHEND_STATES=33, PETRI_FLOW=1389, PETRI_PLACES=343, PETRI_TRANSITIONS=309} [2022-01-19 06:56:17,096 INFO L334 CegarLoopForPetriNet]: 233 programPoint places, 110 predicate places. [2022-01-19 06:56:17,097 INFO L470 AbstractCegarLoop]: Abstraction has has 343 places, 309 transitions, 1389 flow [2022-01-19 06:56:17,098 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 43 states, 43 states have (on average 170.13953488372093) internal successors, (7316), 43 states have internal predecessors, (7316), 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) [2022-01-19 06:56:17,098 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 06:56:17,098 INFO L254 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-19 06:56:17,139 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-01-19 06:56:17,311 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-19 06:56:17,314 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-19 06:56:17,314 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 06:56:17,314 INFO L85 PathProgramCache]: Analyzing trace with hash 1128619235, now seen corresponding path program 1 times [2022-01-19 06:56:17,314 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 06:56:17,314 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1847904407] [2022-01-19 06:56:17,314 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 06:56:17,315 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 06:56:17,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 06:56:17,365 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-19 06:56:17,365 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 06:56:17,365 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1847904407] [2022-01-19 06:56:17,365 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1847904407] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 06:56:17,365 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 06:56:17,365 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-19 06:56:17,366 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1310775663] [2022-01-19 06:56:17,367 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 06:56:17,368 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-01-19 06:56:17,368 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 06:56:17,368 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-01-19 06:56:17,368 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-01-19 06:56:17,369 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 199 out of 258 [2022-01-19 06:56:17,370 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 343 places, 309 transitions, 1389 flow. Second operand has 7 states, 7 states have (on average 203.42857142857142) internal successors, (1424), 7 states have internal predecessors, (1424), 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) [2022-01-19 06:56:17,370 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 06:56:17,370 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 199 of 258 [2022-01-19 06:56:17,370 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 06:56:17,996 INFO L129 PetriNetUnfolder]: 614/5152 cut-off events. [2022-01-19 06:56:17,996 INFO L130 PetriNetUnfolder]: For 4083/4122 co-relation queries the response was YES. [2022-01-19 06:56:18,076 INFO L84 FinitePrefix]: Finished finitePrefix Result has 8712 conditions, 5152 events. 614/5152 cut-off events. For 4083/4122 co-relation queries the response was YES. Maximal size of possible extension queue 131. Compared 49735 event pairs, 403 based on Foata normal form. 50/4841 useless extension candidates. Maximal degree in co-relation 8671. Up to 1127 conditions per place. [2022-01-19 06:56:18,086 INFO L132 encePairwiseOnDemand]: 247/258 looper letters, 100 selfloop transitions, 14 changer transitions 2/319 dead transitions. [2022-01-19 06:56:18,086 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 349 places, 319 transitions, 1634 flow [2022-01-19 06:56:18,086 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-19 06:56:18,086 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2022-01-19 06:56:18,089 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 2065 transitions. [2022-01-19 06:56:18,089 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8003875968992248 [2022-01-19 06:56:18,089 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 2065 transitions. [2022-01-19 06:56:18,089 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 2065 transitions. [2022-01-19 06:56:18,090 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 06:56:18,090 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 2065 transitions. [2022-01-19 06:56:18,093 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 206.5) internal successors, (2065), 10 states have internal predecessors, (2065), 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) [2022-01-19 06:56:18,095 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 258.0) internal successors, (2838), 11 states have internal predecessors, (2838), 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) [2022-01-19 06:56:18,096 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 258.0) internal successors, (2838), 11 states have internal predecessors, (2838), 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) [2022-01-19 06:56:18,096 INFO L186 Difference]: Start difference. First operand has 343 places, 309 transitions, 1389 flow. Second operand 10 states and 2065 transitions. [2022-01-19 06:56:18,096 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 349 places, 319 transitions, 1634 flow [2022-01-19 06:56:18,106 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 337 places, 319 transitions, 1539 flow, removed 29 selfloop flow, removed 12 redundant places. [2022-01-19 06:56:18,109 INFO L242 Difference]: Finished difference. Result has 338 places, 302 transitions, 1264 flow [2022-01-19 06:56:18,110 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=258, PETRI_DIFFERENCE_MINUEND_FLOW=1226, PETRI_DIFFERENCE_MINUEND_PLACES=328, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=301, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=287, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=1264, PETRI_PLACES=338, PETRI_TRANSITIONS=302} [2022-01-19 06:56:18,110 INFO L334 CegarLoopForPetriNet]: 233 programPoint places, 105 predicate places. [2022-01-19 06:56:18,110 INFO L470 AbstractCegarLoop]: Abstraction has has 338 places, 302 transitions, 1264 flow [2022-01-19 06:56:18,111 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 203.42857142857142) internal successors, (1424), 7 states have internal predecessors, (1424), 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) [2022-01-19 06:56:18,111 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 06:56:18,111 INFO L254 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-19 06:56:18,111 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-01-19 06:56:18,111 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-19 06:56:18,111 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 06:56:18,111 INFO L85 PathProgramCache]: Analyzing trace with hash 536896805, now seen corresponding path program 1 times [2022-01-19 06:56:18,111 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 06:56:18,112 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1772510937] [2022-01-19 06:56:18,112 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 06:56:18,112 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 06:56:18,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 06:56:18,160 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-19 06:56:18,161 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 06:56:18,161 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1772510937] [2022-01-19 06:56:18,161 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1772510937] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 06:56:18,161 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 06:56:18,161 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-19 06:56:18,161 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [93752721] [2022-01-19 06:56:18,161 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 06:56:18,161 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-01-19 06:56:18,161 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 06:56:18,162 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-01-19 06:56:18,162 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-01-19 06:56:18,163 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 199 out of 258 [2022-01-19 06:56:18,163 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 338 places, 302 transitions, 1264 flow. Second operand has 7 states, 7 states have (on average 203.42857142857142) internal successors, (1424), 7 states have internal predecessors, (1424), 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) [2022-01-19 06:56:18,164 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 06:56:18,164 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 199 of 258 [2022-01-19 06:56:18,164 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 06:56:18,837 INFO L129 PetriNetUnfolder]: 554/6107 cut-off events. [2022-01-19 06:56:18,837 INFO L130 PetriNetUnfolder]: For 3924/3951 co-relation queries the response was YES. [2022-01-19 06:56:18,875 INFO L84 FinitePrefix]: Finished finitePrefix Result has 9541 conditions, 6107 events. 554/6107 cut-off events. For 3924/3951 co-relation queries the response was YES. Maximal size of possible extension queue 160. Compared 64205 event pairs, 337 based on Foata normal form. 22/5736 useless extension candidates. Maximal degree in co-relation 9501. Up to 986 conditions per place. [2022-01-19 06:56:18,890 INFO L132 encePairwiseOnDemand]: 247/258 looper letters, 69 selfloop transitions, 10 changer transitions 38/313 dead transitions. [2022-01-19 06:56:18,890 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 346 places, 313 transitions, 1519 flow [2022-01-19 06:56:18,891 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-19 06:56:18,891 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2022-01-19 06:56:18,891 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 2063 transitions. [2022-01-19 06:56:18,892 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7996124031007752 [2022-01-19 06:56:18,892 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 2063 transitions. [2022-01-19 06:56:18,892 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 2063 transitions. [2022-01-19 06:56:18,893 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 06:56:18,893 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 2063 transitions. [2022-01-19 06:56:18,894 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 206.3) internal successors, (2063), 10 states have internal predecessors, (2063), 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) [2022-01-19 06:56:18,896 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 258.0) internal successors, (2838), 11 states have internal predecessors, (2838), 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) [2022-01-19 06:56:18,896 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 258.0) internal successors, (2838), 11 states have internal predecessors, (2838), 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) [2022-01-19 06:56:18,896 INFO L186 Difference]: Start difference. First operand has 338 places, 302 transitions, 1264 flow. Second operand 10 states and 2063 transitions. [2022-01-19 06:56:18,897 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 346 places, 313 transitions, 1519 flow [2022-01-19 06:56:18,909 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 339 places, 313 transitions, 1484 flow, removed 6 selfloop flow, removed 7 redundant places. [2022-01-19 06:56:18,912 INFO L242 Difference]: Finished difference. Result has 340 places, 274 transitions, 1023 flow [2022-01-19 06:56:18,912 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=258, PETRI_DIFFERENCE_MINUEND_FLOW=1185, PETRI_DIFFERENCE_MINUEND_PLACES=330, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=296, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=286, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=1023, PETRI_PLACES=340, PETRI_TRANSITIONS=274} [2022-01-19 06:56:18,913 INFO L334 CegarLoopForPetriNet]: 233 programPoint places, 107 predicate places. [2022-01-19 06:56:18,913 INFO L470 AbstractCegarLoop]: Abstraction has has 340 places, 274 transitions, 1023 flow [2022-01-19 06:56:18,913 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 203.42857142857142) internal successors, (1424), 7 states have internal predecessors, (1424), 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) [2022-01-19 06:56:18,913 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 06:56:18,913 INFO L254 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-19 06:56:18,913 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-01-19 06:56:18,913 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-19 06:56:18,914 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 06:56:18,914 INFO L85 PathProgramCache]: Analyzing trace with hash 1698754164, now seen corresponding path program 2 times [2022-01-19 06:56:18,914 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 06:56:18,914 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1694719822] [2022-01-19 06:56:18,914 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 06:56:18,914 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 06:56:18,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 06:56:19,103 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-01-19 06:56:19,104 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 06:56:19,104 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1694719822] [2022-01-19 06:56:19,104 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1694719822] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-19 06:56:19,104 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1907214675] [2022-01-19 06:56:19,104 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-01-19 06:56:19,104 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-19 06:56:19,104 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-19 06:56:19,116 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-19 06:56:19,140 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-01-19 06:56:19,229 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-01-19 06:56:19,229 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-01-19 06:56:19,231 INFO L263 TraceCheckSpWp]: Trace formula consists of 275 conjuncts, 19 conjunts are in the unsatisfiable core [2022-01-19 06:56:19,233 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-19 06:56:19,648 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-01-19 06:56:19,648 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-19 06:56:19,649 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1907214675] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 06:56:19,649 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-01-19 06:56:19,649 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [18] total 28 [2022-01-19 06:56:19,649 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1925937826] [2022-01-19 06:56:19,649 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 06:56:19,650 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-01-19 06:56:19,650 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 06:56:19,651 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-01-19 06:56:19,651 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=72, Invalid=684, Unknown=0, NotChecked=0, Total=756 [2022-01-19 06:56:19,652 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 187 out of 258 [2022-01-19 06:56:19,653 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 340 places, 274 transitions, 1023 flow. Second operand has 12 states, 12 states have (on average 190.83333333333334) internal successors, (2290), 12 states have internal predecessors, (2290), 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) [2022-01-19 06:56:19,653 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 06:56:19,653 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 187 of 258 [2022-01-19 06:56:19,653 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 06:56:20,505 INFO L129 PetriNetUnfolder]: 289/3868 cut-off events. [2022-01-19 06:56:20,505 INFO L130 PetriNetUnfolder]: For 3015/3114 co-relation queries the response was YES. [2022-01-19 06:56:20,528 INFO L84 FinitePrefix]: Finished finitePrefix Result has 6130 conditions, 3868 events. 289/3868 cut-off events. For 3015/3114 co-relation queries the response was YES. Maximal size of possible extension queue 85. Compared 35486 event pairs, 30 based on Foata normal form. 33/3649 useless extension candidates. Maximal degree in co-relation 6089. Up to 338 conditions per place. [2022-01-19 06:56:20,536 INFO L132 encePairwiseOnDemand]: 243/258 looper letters, 79 selfloop transitions, 21 changer transitions 12/316 dead transitions. [2022-01-19 06:56:20,536 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 326 places, 316 transitions, 1417 flow [2022-01-19 06:56:20,536 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-01-19 06:56:20,537 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2022-01-19 06:56:20,539 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 2704 transitions. [2022-01-19 06:56:20,539 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7486157253599114 [2022-01-19 06:56:20,540 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 2704 transitions. [2022-01-19 06:56:20,540 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 2704 transitions. [2022-01-19 06:56:20,541 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 06:56:20,541 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 2704 transitions. [2022-01-19 06:56:20,543 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 193.14285714285714) internal successors, (2704), 14 states have internal predecessors, (2704), 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) [2022-01-19 06:56:20,546 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 258.0) internal successors, (3870), 15 states have internal predecessors, (3870), 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) [2022-01-19 06:56:20,546 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 258.0) internal successors, (3870), 15 states have internal predecessors, (3870), 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) [2022-01-19 06:56:20,546 INFO L186 Difference]: Start difference. First operand has 340 places, 274 transitions, 1023 flow. Second operand 14 states and 2704 transitions. [2022-01-19 06:56:20,546 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 326 places, 316 transitions, 1417 flow [2022-01-19 06:56:20,555 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 303 places, 316 transitions, 1296 flow, removed 31 selfloop flow, removed 23 redundant places. [2022-01-19 06:56:20,559 INFO L242 Difference]: Finished difference. Result has 315 places, 277 transitions, 1043 flow [2022-01-19 06:56:20,560 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=258, PETRI_DIFFERENCE_MINUEND_FLOW=916, PETRI_DIFFERENCE_MINUEND_PLACES=290, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=274, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=18, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=254, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=1043, PETRI_PLACES=315, PETRI_TRANSITIONS=277} [2022-01-19 06:56:20,561 INFO L334 CegarLoopForPetriNet]: 233 programPoint places, 82 predicate places. [2022-01-19 06:56:20,561 INFO L470 AbstractCegarLoop]: Abstraction has has 315 places, 277 transitions, 1043 flow [2022-01-19 06:56:20,562 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 190.83333333333334) internal successors, (2290), 12 states have internal predecessors, (2290), 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) [2022-01-19 06:56:20,562 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 06:56:20,562 INFO L254 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-19 06:56:20,579 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2022-01-19 06:56:20,775 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-19 06:56:20,775 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-19 06:56:20,776 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 06:56:20,776 INFO L85 PathProgramCache]: Analyzing trace with hash 1492835365, now seen corresponding path program 1 times [2022-01-19 06:56:20,776 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 06:56:20,776 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1359328955] [2022-01-19 06:56:20,776 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 06:56:20,776 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 06:56:20,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 06:56:20,838 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-01-19 06:56:20,839 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 06:56:20,839 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1359328955] [2022-01-19 06:56:20,839 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1359328955] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 06:56:20,839 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 06:56:20,839 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-19 06:56:20,839 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [613570250] [2022-01-19 06:56:20,839 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 06:56:20,840 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-01-19 06:56:20,841 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 06:56:20,841 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-01-19 06:56:20,841 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-01-19 06:56:20,842 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 199 out of 258 [2022-01-19 06:56:20,842 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 315 places, 277 transitions, 1043 flow. Second operand has 7 states, 7 states have (on average 204.0) internal successors, (1428), 7 states have internal predecessors, (1428), 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) [2022-01-19 06:56:20,842 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 06:56:20,842 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 199 of 258 [2022-01-19 06:56:20,842 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 06:56:21,322 INFO L129 PetriNetUnfolder]: 428/3817 cut-off events. [2022-01-19 06:56:21,322 INFO L130 PetriNetUnfolder]: For 2800/2821 co-relation queries the response was YES. [2022-01-19 06:56:21,338 INFO L84 FinitePrefix]: Finished finitePrefix Result has 6419 conditions, 3817 events. 428/3817 cut-off events. For 2800/2821 co-relation queries the response was YES. Maximal size of possible extension queue 107. Compared 34558 event pairs, 253 based on Foata normal form. 40/3574 useless extension candidates. Maximal degree in co-relation 6380. Up to 724 conditions per place. [2022-01-19 06:56:21,345 INFO L132 encePairwiseOnDemand]: 249/258 looper letters, 76 selfloop transitions, 13 changer transitions 2/286 dead transitions. [2022-01-19 06:56:21,345 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 311 places, 286 transitions, 1246 flow [2022-01-19 06:56:21,345 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-01-19 06:56:21,345 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2022-01-19 06:56:21,346 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 1655 transitions. [2022-01-19 06:56:21,347 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8018410852713178 [2022-01-19 06:56:21,347 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 1655 transitions. [2022-01-19 06:56:21,347 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 1655 transitions. [2022-01-19 06:56:21,347 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 06:56:21,347 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 1655 transitions. [2022-01-19 06:56:21,348 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 206.875) internal successors, (1655), 8 states have internal predecessors, (1655), 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) [2022-01-19 06:56:21,350 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 258.0) internal successors, (2322), 9 states have internal predecessors, (2322), 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) [2022-01-19 06:56:21,350 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 258.0) internal successors, (2322), 9 states have internal predecessors, (2322), 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) [2022-01-19 06:56:21,350 INFO L186 Difference]: Start difference. First operand has 315 places, 277 transitions, 1043 flow. Second operand 8 states and 1655 transitions. [2022-01-19 06:56:21,350 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 311 places, 286 transitions, 1246 flow [2022-01-19 06:56:21,357 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 298 places, 286 transitions, 1184 flow, removed 23 selfloop flow, removed 13 redundant places. [2022-01-19 06:56:21,360 INFO L242 Difference]: Finished difference. Result has 299 places, 273 transitions, 979 flow [2022-01-19 06:56:21,360 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=258, PETRI_DIFFERENCE_MINUEND_FLOW=938, PETRI_DIFFERENCE_MINUEND_PLACES=291, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=272, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=259, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=979, PETRI_PLACES=299, PETRI_TRANSITIONS=273} [2022-01-19 06:56:21,361 INFO L334 CegarLoopForPetriNet]: 233 programPoint places, 66 predicate places. [2022-01-19 06:56:21,361 INFO L470 AbstractCegarLoop]: Abstraction has has 299 places, 273 transitions, 979 flow [2022-01-19 06:56:21,361 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 204.0) internal successors, (1428), 7 states have internal predecessors, (1428), 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) [2022-01-19 06:56:21,361 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 06:56:21,361 INFO L254 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-19 06:56:21,361 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-01-19 06:56:21,361 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-19 06:56:21,361 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 06:56:21,362 INFO L85 PathProgramCache]: Analyzing trace with hash 41757947, now seen corresponding path program 1 times [2022-01-19 06:56:21,362 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 06:56:21,362 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2071356720] [2022-01-19 06:56:21,362 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 06:56:21,362 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 06:56:21,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 06:56:21,432 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-01-19 06:56:21,432 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 06:56:21,432 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2071356720] [2022-01-19 06:56:21,432 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2071356720] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 06:56:21,432 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 06:56:21,433 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-19 06:56:21,433 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [763498513] [2022-01-19 06:56:21,433 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 06:56:21,433 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-01-19 06:56:21,433 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 06:56:21,433 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-01-19 06:56:21,433 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-01-19 06:56:21,434 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 199 out of 258 [2022-01-19 06:56:21,435 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 299 places, 273 transitions, 979 flow. Second operand has 7 states, 7 states have (on average 204.0) internal successors, (1428), 7 states have internal predecessors, (1428), 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) [2022-01-19 06:56:21,435 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 06:56:21,435 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 199 of 258 [2022-01-19 06:56:21,435 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 06:56:21,820 INFO L129 PetriNetUnfolder]: 364/3534 cut-off events. [2022-01-19 06:56:21,821 INFO L130 PetriNetUnfolder]: For 2236/2257 co-relation queries the response was YES. [2022-01-19 06:56:21,838 INFO L84 FinitePrefix]: Finished finitePrefix Result has 5751 conditions, 3534 events. 364/3534 cut-off events. For 2236/2257 co-relation queries the response was YES. Maximal size of possible extension queue 101. Compared 31453 event pairs, 203 based on Foata normal form. 27/3313 useless extension candidates. Maximal degree in co-relation 5722. Up to 649 conditions per place. [2022-01-19 06:56:21,845 INFO L132 encePairwiseOnDemand]: 249/258 looper letters, 63 selfloop transitions, 10 changer transitions 17/282 dead transitions. [2022-01-19 06:56:21,846 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 305 places, 282 transitions, 1190 flow [2022-01-19 06:56:21,846 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-01-19 06:56:21,846 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2022-01-19 06:56:21,847 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 1653 transitions. [2022-01-19 06:56:21,847 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8008720930232558 [2022-01-19 06:56:21,848 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 1653 transitions. [2022-01-19 06:56:21,848 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 1653 transitions. [2022-01-19 06:56:21,848 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 06:56:21,848 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 1653 transitions. [2022-01-19 06:56:21,849 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 206.625) internal successors, (1653), 8 states have internal predecessors, (1653), 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) [2022-01-19 06:56:21,851 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 258.0) internal successors, (2322), 9 states have internal predecessors, (2322), 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) [2022-01-19 06:56:21,851 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 258.0) internal successors, (2322), 9 states have internal predecessors, (2322), 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) [2022-01-19 06:56:21,851 INFO L186 Difference]: Start difference. First operand has 299 places, 273 transitions, 979 flow. Second operand 8 states and 1653 transitions. [2022-01-19 06:56:21,851 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 305 places, 282 transitions, 1190 flow [2022-01-19 06:56:21,857 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 301 places, 282 transitions, 1158 flow, removed 8 selfloop flow, removed 4 redundant places. [2022-01-19 06:56:21,860 INFO L242 Difference]: Finished difference. Result has 301 places, 263 transitions, 888 flow [2022-01-19 06:56:21,860 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=258, PETRI_DIFFERENCE_MINUEND_FLOW=931, PETRI_DIFFERENCE_MINUEND_PLACES=294, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=270, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=260, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=888, PETRI_PLACES=301, PETRI_TRANSITIONS=263} [2022-01-19 06:56:21,861 INFO L334 CegarLoopForPetriNet]: 233 programPoint places, 68 predicate places. [2022-01-19 06:56:21,861 INFO L470 AbstractCegarLoop]: Abstraction has has 301 places, 263 transitions, 888 flow [2022-01-19 06:56:21,861 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 204.0) internal successors, (1428), 7 states have internal predecessors, (1428), 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) [2022-01-19 06:56:21,861 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 06:56:21,861 INFO L254 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-19 06:56:21,861 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-01-19 06:56:21,861 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-19 06:56:21,862 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 06:56:21,862 INFO L85 PathProgramCache]: Analyzing trace with hash 1915691210, now seen corresponding path program 1 times [2022-01-19 06:56:21,862 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 06:56:21,862 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1005146929] [2022-01-19 06:56:21,862 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 06:56:21,862 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 06:56:21,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 06:56:22,168 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-01-19 06:56:22,168 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 06:56:22,169 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1005146929] [2022-01-19 06:56:22,169 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1005146929] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 06:56:22,169 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 06:56:22,169 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2022-01-19 06:56:22,169 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [185446742] [2022-01-19 06:56:22,169 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 06:56:22,169 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2022-01-19 06:56:22,169 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 06:56:22,170 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2022-01-19 06:56:22,170 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=314, Unknown=0, NotChecked=0, Total=380 [2022-01-19 06:56:22,172 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 179 out of 258 [2022-01-19 06:56:22,174 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 301 places, 263 transitions, 888 flow. Second operand has 20 states, 20 states have (on average 181.6) internal successors, (3632), 20 states have internal predecessors, (3632), 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) [2022-01-19 06:56:22,174 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 06:56:22,174 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 179 of 258 [2022-01-19 06:56:22,174 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 06:56:27,152 INFO L129 PetriNetUnfolder]: 13719/45856 cut-off events. [2022-01-19 06:56:27,153 INFO L130 PetriNetUnfolder]: For 14379/14455 co-relation queries the response was YES. [2022-01-19 06:56:27,587 INFO L84 FinitePrefix]: Finished finitePrefix Result has 78655 conditions, 45856 events. 13719/45856 cut-off events. For 14379/14455 co-relation queries the response was YES. Maximal size of possible extension queue 1339. Compared 607502 event pairs, 5481 based on Foata normal form. 16/42915 useless extension candidates. Maximal degree in co-relation 78626. Up to 8191 conditions per place. [2022-01-19 06:56:27,676 INFO L132 encePairwiseOnDemand]: 228/258 looper letters, 205 selfloop transitions, 56 changer transitions 0/458 dead transitions. [2022-01-19 06:56:27,677 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 319 places, 458 transitions, 1881 flow [2022-01-19 06:56:27,677 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2022-01-19 06:56:27,677 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26 states. [2022-01-19 06:56:27,679 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 4914 transitions. [2022-01-19 06:56:27,680 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7325581395348837 [2022-01-19 06:56:27,680 INFO L72 ComplementDD]: Start complementDD. Operand 26 states and 4914 transitions. [2022-01-19 06:56:27,681 INFO L73 IsDeterministic]: Start isDeterministic. Operand 26 states and 4914 transitions. [2022-01-19 06:56:27,681 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 06:56:27,681 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 26 states and 4914 transitions. [2022-01-19 06:56:27,685 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 27 states, 26 states have (on average 189.0) internal successors, (4914), 26 states have internal predecessors, (4914), 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) [2022-01-19 06:56:27,689 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 27 states, 27 states have (on average 258.0) internal successors, (6966), 27 states have internal predecessors, (6966), 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) [2022-01-19 06:56:27,689 INFO L81 ComplementDD]: Finished complementDD. Result has 27 states, 27 states have (on average 258.0) internal successors, (6966), 27 states have internal predecessors, (6966), 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) [2022-01-19 06:56:27,689 INFO L186 Difference]: Start difference. First operand has 301 places, 263 transitions, 888 flow. Second operand 26 states and 4914 transitions. [2022-01-19 06:56:27,689 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 319 places, 458 transitions, 1881 flow [2022-01-19 06:56:27,733 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 307 places, 458 transitions, 1799 flow, removed 11 selfloop flow, removed 12 redundant places. [2022-01-19 06:56:27,737 INFO L242 Difference]: Finished difference. Result has 321 places, 307 transitions, 1179 flow [2022-01-19 06:56:27,737 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=258, PETRI_DIFFERENCE_MINUEND_FLOW=819, PETRI_DIFFERENCE_MINUEND_PLACES=282, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=263, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=22, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=233, PETRI_DIFFERENCE_SUBTRAHEND_STATES=26, PETRI_FLOW=1179, PETRI_PLACES=321, PETRI_TRANSITIONS=307} [2022-01-19 06:56:27,738 INFO L334 CegarLoopForPetriNet]: 233 programPoint places, 88 predicate places. [2022-01-19 06:56:27,738 INFO L470 AbstractCegarLoop]: Abstraction has has 321 places, 307 transitions, 1179 flow [2022-01-19 06:56:27,738 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 181.6) internal successors, (3632), 20 states have internal predecessors, (3632), 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) [2022-01-19 06:56:27,738 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 06:56:27,738 INFO L254 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-19 06:56:27,738 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-01-19 06:56:27,738 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-19 06:56:27,739 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 06:56:27,739 INFO L85 PathProgramCache]: Analyzing trace with hash -1916777746, now seen corresponding path program 2 times [2022-01-19 06:56:27,739 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 06:56:27,739 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1170189014] [2022-01-19 06:56:27,739 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 06:56:27,739 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 06:56:27,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 06:56:27,999 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-01-19 06:56:28,000 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 06:56:28,000 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1170189014] [2022-01-19 06:56:28,000 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1170189014] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-19 06:56:28,000 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [915241535] [2022-01-19 06:56:28,000 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-01-19 06:56:28,000 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-19 06:56:28,000 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-19 06:56:28,001 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-19 06:56:28,002 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-01-19 06:56:28,087 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-01-19 06:56:28,088 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-01-19 06:56:28,089 INFO L263 TraceCheckSpWp]: Trace formula consists of 373 conjuncts, 48 conjunts are in the unsatisfiable core [2022-01-19 06:56:28,092 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-19 06:56:28,540 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-01-19 06:56:28,666 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-01-19 06:56:28,708 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-01-19 06:56:28,946 INFO L353 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2022-01-19 06:56:28,947 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 10 [2022-01-19 06:56:29,012 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-01-19 06:56:29,013 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-19 06:56:29,352 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-01-19 06:56:29,352 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [915241535] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-19 06:56:29,352 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-19 06:56:29,352 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 24, 9] total 47 [2022-01-19 06:56:29,352 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1251852259] [2022-01-19 06:56:29,352 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-19 06:56:29,353 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 47 states [2022-01-19 06:56:29,353 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 06:56:29,353 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 47 interpolants. [2022-01-19 06:56:29,354 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=198, Invalid=1964, Unknown=0, NotChecked=0, Total=2162 [2022-01-19 06:56:29,356 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 162 out of 258 [2022-01-19 06:56:29,359 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 321 places, 307 transitions, 1179 flow. Second operand has 47 states, 47 states have (on average 165.5744680851064) internal successors, (7782), 47 states have internal predecessors, (7782), 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) [2022-01-19 06:56:29,359 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 06:56:29,359 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 162 of 258 [2022-01-19 06:56:29,359 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 06:56:40,686 INFO L129 PetriNetUnfolder]: 27972/79355 cut-off events. [2022-01-19 06:56:40,686 INFO L130 PetriNetUnfolder]: For 49367/49419 co-relation queries the response was YES. [2022-01-19 06:56:41,232 INFO L84 FinitePrefix]: Finished finitePrefix Result has 171758 conditions, 79355 events. 27972/79355 cut-off events. For 49367/49419 co-relation queries the response was YES. Maximal size of possible extension queue 2032. Compared 1050517 event pairs, 8178 based on Foata normal form. 140/77199 useless extension candidates. Maximal degree in co-relation 171720. Up to 12657 conditions per place. [2022-01-19 06:56:41,420 INFO L132 encePairwiseOnDemand]: 219/258 looper letters, 423 selfloop transitions, 138 changer transitions 0/727 dead transitions. [2022-01-19 06:56:41,421 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 361 places, 727 transitions, 4081 flow [2022-01-19 06:56:41,421 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2022-01-19 06:56:41,421 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 41 states. [2022-01-19 06:56:41,424 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 7074 transitions. [2022-01-19 06:56:41,426 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.6687464549064095 [2022-01-19 06:56:41,426 INFO L72 ComplementDD]: Start complementDD. Operand 41 states and 7074 transitions. [2022-01-19 06:56:41,426 INFO L73 IsDeterministic]: Start isDeterministic. Operand 41 states and 7074 transitions. [2022-01-19 06:56:41,427 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 06:56:41,427 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 41 states and 7074 transitions. [2022-01-19 06:56:41,432 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 42 states, 41 states have (on average 172.53658536585365) internal successors, (7074), 41 states have internal predecessors, (7074), 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) [2022-01-19 06:56:41,437 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 42 states, 42 states have (on average 258.0) internal successors, (10836), 42 states have internal predecessors, (10836), 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) [2022-01-19 06:56:41,437 INFO L81 ComplementDD]: Finished complementDD. Result has 42 states, 42 states have (on average 258.0) internal successors, (10836), 42 states have internal predecessors, (10836), 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) [2022-01-19 06:56:41,437 INFO L186 Difference]: Start difference. First operand has 321 places, 307 transitions, 1179 flow. Second operand 41 states and 7074 transitions. [2022-01-19 06:56:41,437 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 361 places, 727 transitions, 4081 flow [2022-01-19 06:56:41,676 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 353 places, 727 transitions, 4054 flow, removed 0 selfloop flow, removed 8 redundant places. [2022-01-19 06:56:41,682 INFO L242 Difference]: Finished difference. Result has 379 places, 400 transitions, 2232 flow [2022-01-19 06:56:41,682 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=258, PETRI_DIFFERENCE_MINUEND_FLOW=1152, PETRI_DIFFERENCE_MINUEND_PLACES=313, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=307, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=50, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=243, PETRI_DIFFERENCE_SUBTRAHEND_STATES=41, PETRI_FLOW=2232, PETRI_PLACES=379, PETRI_TRANSITIONS=400} [2022-01-19 06:56:41,682 INFO L334 CegarLoopForPetriNet]: 233 programPoint places, 146 predicate places. [2022-01-19 06:56:41,682 INFO L470 AbstractCegarLoop]: Abstraction has has 379 places, 400 transitions, 2232 flow [2022-01-19 06:56:41,683 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 47 states, 47 states have (on average 165.5744680851064) internal successors, (7782), 47 states have internal predecessors, (7782), 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) [2022-01-19 06:56:41,683 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 06:56:41,683 INFO L254 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-19 06:56:41,703 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2022-01-19 06:56:41,900 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2022-01-19 06:56:41,900 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-19 06:56:41,900 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 06:56:41,900 INFO L85 PathProgramCache]: Analyzing trace with hash 1349825052, now seen corresponding path program 1 times [2022-01-19 06:56:41,901 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 06:56:41,901 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [713031500] [2022-01-19 06:56:41,901 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 06:56:41,901 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 06:56:41,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 06:56:42,210 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-01-19 06:56:42,210 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 06:56:42,210 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [713031500] [2022-01-19 06:56:42,210 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [713031500] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 06:56:42,210 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 06:56:42,210 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2022-01-19 06:56:42,210 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [118566020] [2022-01-19 06:56:42,210 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 06:56:42,211 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2022-01-19 06:56:42,211 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 06:56:42,211 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2022-01-19 06:56:42,211 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=316, Unknown=0, NotChecked=0, Total=380 [2022-01-19 06:56:42,212 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 179 out of 258 [2022-01-19 06:56:42,214 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 379 places, 400 transitions, 2232 flow. Second operand has 20 states, 20 states have (on average 181.6) internal successors, (3632), 20 states have internal predecessors, (3632), 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) [2022-01-19 06:56:42,214 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 06:56:42,214 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 179 of 258 [2022-01-19 06:56:42,214 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 06:56:57,360 INFO L129 PetriNetUnfolder]: 29946/101703 cut-off events. [2022-01-19 06:56:57,361 INFO L130 PetriNetUnfolder]: For 190040/190148 co-relation queries the response was YES. [2022-01-19 06:56:58,603 INFO L84 FinitePrefix]: Finished finitePrefix Result has 249504 conditions, 101703 events. 29946/101703 cut-off events. For 190040/190148 co-relation queries the response was YES. Maximal size of possible extension queue 2571. Compared 1515362 event pairs, 15081 based on Foata normal form. 79/97863 useless extension candidates. Maximal degree in co-relation 249440. Up to 23469 conditions per place. [2022-01-19 06:56:59,000 INFO L132 encePairwiseOnDemand]: 229/258 looper letters, 281 selfloop transitions, 92 changer transitions 0/570 dead transitions. [2022-01-19 06:56:59,001 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 399 places, 570 transitions, 3981 flow [2022-01-19 06:56:59,001 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-01-19 06:56:59,001 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2022-01-19 06:56:59,003 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 3982 transitions. [2022-01-19 06:56:59,004 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7349575489110373 [2022-01-19 06:56:59,004 INFO L72 ComplementDD]: Start complementDD. Operand 21 states and 3982 transitions. [2022-01-19 06:56:59,004 INFO L73 IsDeterministic]: Start isDeterministic. Operand 21 states and 3982 transitions. [2022-01-19 06:56:59,004 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 06:56:59,004 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 21 states and 3982 transitions. [2022-01-19 06:56:59,007 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 22 states, 21 states have (on average 189.61904761904762) internal successors, (3982), 21 states have internal predecessors, (3982), 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) [2022-01-19 06:56:59,010 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 22 states, 22 states have (on average 258.0) internal successors, (5676), 22 states have internal predecessors, (5676), 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) [2022-01-19 06:56:59,010 INFO L81 ComplementDD]: Finished complementDD. Result has 22 states, 22 states have (on average 258.0) internal successors, (5676), 22 states have internal predecessors, (5676), 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) [2022-01-19 06:56:59,010 INFO L186 Difference]: Start difference. First operand has 379 places, 400 transitions, 2232 flow. Second operand 21 states and 3982 transitions. [2022-01-19 06:56:59,010 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 399 places, 570 transitions, 3981 flow [2022-01-19 06:57:01,339 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 386 places, 570 transitions, 3850 flow, removed 40 selfloop flow, removed 13 redundant places. [2022-01-19 06:57:01,344 INFO L242 Difference]: Finished difference. Result has 395 places, 415 transitions, 2550 flow [2022-01-19 06:57:01,344 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=258, PETRI_DIFFERENCE_MINUEND_FLOW=2103, PETRI_DIFFERENCE_MINUEND_PLACES=366, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=400, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=77, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=316, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=2550, PETRI_PLACES=395, PETRI_TRANSITIONS=415} [2022-01-19 06:57:01,345 INFO L334 CegarLoopForPetriNet]: 233 programPoint places, 162 predicate places. [2022-01-19 06:57:01,345 INFO L470 AbstractCegarLoop]: Abstraction has has 395 places, 415 transitions, 2550 flow [2022-01-19 06:57:01,345 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 181.6) internal successors, (3632), 20 states have internal predecessors, (3632), 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) [2022-01-19 06:57:01,345 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 06:57:01,346 INFO L254 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-19 06:57:01,346 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-01-19 06:57:01,346 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-19 06:57:01,346 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 06:57:01,346 INFO L85 PathProgramCache]: Analyzing trace with hash 453490286, now seen corresponding path program 2 times [2022-01-19 06:57:01,346 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 06:57:01,346 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [309242514] [2022-01-19 06:57:01,346 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 06:57:01,346 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 06:57:01,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 06:57:01,639 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-01-19 06:57:01,639 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 06:57:01,639 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [309242514] [2022-01-19 06:57:01,639 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [309242514] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-19 06:57:01,639 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1841031105] [2022-01-19 06:57:01,639 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-01-19 06:57:01,639 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-19 06:57:01,639 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-19 06:57:01,640 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-19 06:57:01,641 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-01-19 06:57:01,739 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-01-19 06:57:01,739 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-01-19 06:57:01,741 INFO L263 TraceCheckSpWp]: Trace formula consists of 373 conjuncts, 35 conjunts are in the unsatisfiable core [2022-01-19 06:57:01,743 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-19 06:57:02,057 INFO L353 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-01-19 06:57:02,058 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 10 [2022-01-19 06:57:02,121 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-01-19 06:57:02,121 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-19 06:57:02,307 INFO L353 Elim1Store]: treesize reduction 56, result has 48.6 percent of original size [2022-01-19 06:57:02,307 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 40 treesize of output 60 [2022-01-19 06:57:02,446 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-01-19 06:57:02,447 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1841031105] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-19 06:57:02,447 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-19 06:57:02,447 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 19, 9] total 29 [2022-01-19 06:57:02,447 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1661570901] [2022-01-19 06:57:02,447 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-19 06:57:02,447 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2022-01-19 06:57:02,448 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 06:57:02,448 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2022-01-19 06:57:02,448 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=122, Invalid=690, Unknown=0, NotChecked=0, Total=812 [2022-01-19 06:57:02,450 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 179 out of 258 [2022-01-19 06:57:02,452 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 395 places, 415 transitions, 2550 flow. Second operand has 29 states, 29 states have (on average 182.3448275862069) internal successors, (5288), 29 states have internal predecessors, (5288), 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) [2022-01-19 06:57:02,452 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 06:57:02,452 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 179 of 258 [2022-01-19 06:57:02,452 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 06:57:22,875 INFO L129 PetriNetUnfolder]: 40062/125576 cut-off events. [2022-01-19 06:57:22,876 INFO L130 PetriNetUnfolder]: For 358024/358211 co-relation queries the response was YES. [2022-01-19 06:57:24,652 INFO L84 FinitePrefix]: Finished finitePrefix Result has 344545 conditions, 125576 events. 40062/125576 cut-off events. For 358024/358211 co-relation queries the response was YES. Maximal size of possible extension queue 3222. Compared 1857392 event pairs, 14572 based on Foata normal form. 295/121530 useless extension candidates. Maximal degree in co-relation 344472. Up to 45757 conditions per place. [2022-01-19 06:57:25,013 INFO L132 encePairwiseOnDemand]: 213/258 looper letters, 461 selfloop transitions, 177 changer transitions 0/835 dead transitions. [2022-01-19 06:57:25,014 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 438 places, 835 transitions, 6894 flow [2022-01-19 06:57:25,014 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2022-01-19 06:57:25,014 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 44 states. [2022-01-19 06:57:25,017 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 8274 transitions. [2022-01-19 06:57:25,019 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7288583509513742 [2022-01-19 06:57:25,019 INFO L72 ComplementDD]: Start complementDD. Operand 44 states and 8274 transitions. [2022-01-19 06:57:25,019 INFO L73 IsDeterministic]: Start isDeterministic. Operand 44 states and 8274 transitions. [2022-01-19 06:57:25,020 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 06:57:25,020 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 44 states and 8274 transitions. [2022-01-19 06:57:25,027 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 45 states, 44 states have (on average 188.04545454545453) internal successors, (8274), 44 states have internal predecessors, (8274), 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) [2022-01-19 06:57:25,033 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 45 states, 45 states have (on average 258.0) internal successors, (11610), 45 states have internal predecessors, (11610), 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) [2022-01-19 06:57:25,034 INFO L81 ComplementDD]: Finished complementDD. Result has 45 states, 45 states have (on average 258.0) internal successors, (11610), 45 states have internal predecessors, (11610), 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) [2022-01-19 06:57:25,034 INFO L186 Difference]: Start difference. First operand has 395 places, 415 transitions, 2550 flow. Second operand 44 states and 8274 transitions. [2022-01-19 06:57:25,034 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 438 places, 835 transitions, 6894 flow [2022-01-19 06:57:28,837 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 428 places, 835 transitions, 6601 flow, removed 90 selfloop flow, removed 10 redundant places. [2022-01-19 06:57:28,844 INFO L242 Difference]: Finished difference. Result has 451 places, 567 transitions, 4557 flow [2022-01-19 06:57:28,844 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=258, PETRI_DIFFERENCE_MINUEND_FLOW=2391, PETRI_DIFFERENCE_MINUEND_PLACES=385, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=415, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=45, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=329, PETRI_DIFFERENCE_SUBTRAHEND_STATES=44, PETRI_FLOW=4557, PETRI_PLACES=451, PETRI_TRANSITIONS=567} [2022-01-19 06:57:28,844 INFO L334 CegarLoopForPetriNet]: 233 programPoint places, 218 predicate places. [2022-01-19 06:57:28,844 INFO L470 AbstractCegarLoop]: Abstraction has has 451 places, 567 transitions, 4557 flow [2022-01-19 06:57:28,845 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 29 states have (on average 182.3448275862069) internal successors, (5288), 29 states have internal predecessors, (5288), 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) [2022-01-19 06:57:28,845 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 06:57:28,845 INFO L254 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-19 06:57:28,860 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2022-01-19 06:57:29,045 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2022-01-19 06:57:29,046 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-19 06:57:29,046 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 06:57:29,046 INFO L85 PathProgramCache]: Analyzing trace with hash -450704276, now seen corresponding path program 3 times [2022-01-19 06:57:29,046 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 06:57:29,046 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1099832921] [2022-01-19 06:57:29,046 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 06:57:29,047 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 06:57:29,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 06:57:29,419 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-01-19 06:57:29,420 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 06:57:29,420 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1099832921] [2022-01-19 06:57:29,420 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1099832921] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-19 06:57:29,420 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1133417761] [2022-01-19 06:57:29,420 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-01-19 06:57:29,420 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-19 06:57:29,420 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-19 06:57:29,421 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-19 06:57:29,422 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2022-01-19 06:57:29,515 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2022-01-19 06:57:29,516 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-01-19 06:57:29,517 INFO L263 TraceCheckSpWp]: Trace formula consists of 373 conjuncts, 46 conjunts are in the unsatisfiable core [2022-01-19 06:57:29,519 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-19 06:57:29,797 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-01-19 06:57:29,887 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-01-19 06:57:29,918 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-01-19 06:57:30,103 INFO L353 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2022-01-19 06:57:30,103 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 10 [2022-01-19 06:57:30,172 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-01-19 06:57:30,172 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-19 06:57:30,469 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-01-19 06:57:30,469 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1133417761] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-19 06:57:30,469 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-19 06:57:30,469 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 18, 9] total 42 [2022-01-19 06:57:30,469 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2127912714] [2022-01-19 06:57:30,469 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-19 06:57:30,470 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 42 states [2022-01-19 06:57:30,470 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 06:57:30,470 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 42 interpolants. [2022-01-19 06:57:30,470 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=177, Invalid=1545, Unknown=0, NotChecked=0, Total=1722 [2022-01-19 06:57:30,473 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 162 out of 258 [2022-01-19 06:57:30,475 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 451 places, 567 transitions, 4557 flow. Second operand has 42 states, 42 states have (on average 165.76190476190476) internal successors, (6962), 42 states have internal predecessors, (6962), 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) [2022-01-19 06:57:30,475 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 06:57:30,475 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 162 of 258 [2022-01-19 06:57:30,475 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 06:58:03,121 INFO L129 PetriNetUnfolder]: 45417/145236 cut-off events. [2022-01-19 06:58:03,122 INFO L130 PetriNetUnfolder]: For 963665/964093 co-relation queries the response was YES. [2022-01-19 06:58:06,174 INFO L84 FinitePrefix]: Finished finitePrefix Result has 560497 conditions, 145236 events. 45417/145236 cut-off events. For 963665/964093 co-relation queries the response was YES. Maximal size of possible extension queue 3819. Compared 2208368 event pairs, 19253 based on Foata normal form. 209/140315 useless extension candidates. Maximal degree in co-relation 560401. Up to 30837 conditions per place. [2022-01-19 06:58:06,700 INFO L132 encePairwiseOnDemand]: 215/258 looper letters, 478 selfloop transitions, 316 changer transitions 0/960 dead transitions. [2022-01-19 06:58:06,701 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 496 places, 960 transitions, 10723 flow [2022-01-19 06:58:06,701 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2022-01-19 06:58:06,701 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 46 states. [2022-01-19 06:58:06,704 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 7830 transitions. [2022-01-19 06:58:06,706 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.659757330637007 [2022-01-19 06:58:06,706 INFO L72 ComplementDD]: Start complementDD. Operand 46 states and 7830 transitions. [2022-01-19 06:58:06,706 INFO L73 IsDeterministic]: Start isDeterministic. Operand 46 states and 7830 transitions. [2022-01-19 06:58:06,707 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 06:58:06,707 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 46 states and 7830 transitions. [2022-01-19 06:58:06,713 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 47 states, 46 states have (on average 170.2173913043478) internal successors, (7830), 46 states have internal predecessors, (7830), 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) [2022-01-19 06:58:06,719 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 47 states, 47 states have (on average 258.0) internal successors, (12126), 47 states have internal predecessors, (12126), 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) [2022-01-19 06:58:06,720 INFO L81 ComplementDD]: Finished complementDD. Result has 47 states, 47 states have (on average 258.0) internal successors, (12126), 47 states have internal predecessors, (12126), 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) [2022-01-19 06:58:06,720 INFO L186 Difference]: Start difference. First operand has 451 places, 567 transitions, 4557 flow. Second operand 46 states and 7830 transitions. [2022-01-19 06:58:06,720 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 496 places, 960 transitions, 10723 flow [2022-01-19 06:58:28,682 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 482 places, 960 transitions, 9854 flow, removed 376 selfloop flow, removed 14 redundant places. [2022-01-19 06:58:28,692 INFO L242 Difference]: Finished difference. Result has 507 places, 740 transitions, 7575 flow [2022-01-19 06:58:28,692 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=258, PETRI_DIFFERENCE_MINUEND_FLOW=4107, PETRI_DIFFERENCE_MINUEND_PLACES=437, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=567, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=169, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=366, PETRI_DIFFERENCE_SUBTRAHEND_STATES=46, PETRI_FLOW=7575, PETRI_PLACES=507, PETRI_TRANSITIONS=740} [2022-01-19 06:58:28,693 INFO L334 CegarLoopForPetriNet]: 233 programPoint places, 274 predicate places. [2022-01-19 06:58:28,693 INFO L470 AbstractCegarLoop]: Abstraction has has 507 places, 740 transitions, 7575 flow [2022-01-19 06:58:28,693 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 42 states, 42 states have (on average 165.76190476190476) internal successors, (6962), 42 states have internal predecessors, (6962), 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) [2022-01-19 06:58:28,694 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 06:58:28,694 INFO L254 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-19 06:58:28,710 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2022-01-19 06:58:28,894 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-19 06:58:28,894 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-19 06:58:28,895 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 06:58:28,895 INFO L85 PathProgramCache]: Analyzing trace with hash 1647537396, now seen corresponding path program 4 times [2022-01-19 06:58:28,895 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 06:58:28,895 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1441275710] [2022-01-19 06:58:28,895 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 06:58:28,895 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 06:58:28,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 06:58:29,189 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-01-19 06:58:29,189 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 06:58:29,190 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1441275710] [2022-01-19 06:58:29,190 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1441275710] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 06:58:29,190 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 06:58:29,190 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2022-01-19 06:58:29,190 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2032103825] [2022-01-19 06:58:29,190 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 06:58:29,190 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2022-01-19 06:58:29,190 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 06:58:29,190 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2022-01-19 06:58:29,191 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=315, Unknown=0, NotChecked=0, Total=380 [2022-01-19 06:58:29,192 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 179 out of 258 [2022-01-19 06:58:29,193 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 507 places, 740 transitions, 7575 flow. Second operand has 20 states, 20 states have (on average 181.6) internal successors, (3632), 20 states have internal predecessors, (3632), 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) [2022-01-19 06:58:29,193 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 06:58:29,193 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 179 of 258 [2022-01-19 06:58:29,193 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand