/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/parallel-ticket-3.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-bf34d27 [2022-01-19 07:46:45,805 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-19 07:46:45,807 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-19 07:46:45,852 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-01-19 07:46:45,853 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-01-19 07:46:45,854 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-01-19 07:46:45,854 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-01-19 07:46:45,856 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-01-19 07:46:45,857 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-01-19 07:46:45,858 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-01-19 07:46:45,858 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-01-19 07:46:45,859 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-01-19 07:46:45,860 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-01-19 07:46:45,860 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-01-19 07:46:45,861 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-01-19 07:46:45,862 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-01-19 07:46:45,862 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-01-19 07:46:45,880 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-01-19 07:46:45,881 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-01-19 07:46:45,883 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-01-19 07:46:45,884 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-01-19 07:46:45,889 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-01-19 07:46:45,890 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-01-19 07:46:45,890 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-01-19 07:46:45,892 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-01-19 07:46:45,893 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-01-19 07:46:45,893 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-01-19 07:46:45,893 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-01-19 07:46:45,894 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-01-19 07:46:45,894 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-01-19 07:46:45,895 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-01-19 07:46:45,895 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-01-19 07:46:45,896 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-01-19 07:46:45,896 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-01-19 07:46:45,897 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-01-19 07:46:45,898 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-01-19 07:46:45,898 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-01-19 07:46:45,898 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-01-19 07:46:45,899 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-19 07:46:45,899 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-19 07:46:45,900 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-19 07:46:45,907 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 07:46:45,940 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-19 07:46:45,940 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-19 07:46:45,940 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-01-19 07:46:45,941 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-01-19 07:46:45,941 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-01-19 07:46:45,941 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-01-19 07:46:45,941 INFO L138 SettingsManager]: * Use SBE=true [2022-01-19 07:46:45,942 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-19 07:46:45,942 INFO L138 SettingsManager]: * sizeof long=4 [2022-01-19 07:46:45,942 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-19 07:46:45,942 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-01-19 07:46:45,942 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-19 07:46:45,942 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-19 07:46:45,942 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-19 07:46:45,943 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-19 07:46:45,943 INFO L138 SettingsManager]: * sizeof long double=12 [2022-01-19 07:46:45,943 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-19 07:46:45,943 INFO L138 SettingsManager]: * Use constant arrays=true [2022-01-19 07:46:45,943 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-19 07:46:45,943 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-19 07:46:45,943 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-19 07:46:45,943 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-01-19 07:46:45,944 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-19 07:46:45,944 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-19 07:46:45,944 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-19 07:46:45,944 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-01-19 07:46:45,944 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-01-19 07:46:45,944 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-01-19 07:46:45,945 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-01-19 07:46:45,945 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-01-19 07:46:45,945 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-01-19 07:46:45,945 INFO L138 SettingsManager]: * When to check the insufficient erros location relative to the other error locations=BEFORE [2022-01-19 07:46:45,945 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-01-19 07:46:46,155 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-19 07:46:46,172 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-19 07:46:46,174 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-19 07:46:46,175 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-19 07:46:46,176 INFO L275 PluginConnector]: CDTParser initialized [2022-01-19 07:46:46,177 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/parallel-ticket-3.wvr.c [2022-01-19 07:46:46,227 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/caf562621/ba4121cfda5449cf86936deea1491f37/FLAG4a5d6670f [2022-01-19 07:46:46,620 INFO L306 CDTParser]: Found 1 translation units. [2022-01-19 07:46:46,620 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/parallel-ticket-3.wvr.c [2022-01-19 07:46:46,626 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/caf562621/ba4121cfda5449cf86936deea1491f37/FLAG4a5d6670f [2022-01-19 07:46:46,636 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/caf562621/ba4121cfda5449cf86936deea1491f37 [2022-01-19 07:46:46,639 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-19 07:46:46,640 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-01-19 07:46:46,642 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-19 07:46:46,642 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-19 07:46:46,644 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-19 07:46:46,645 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.01 07:46:46" (1/1) ... [2022-01-19 07:46:46,646 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3342851f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 07:46:46, skipping insertion in model container [2022-01-19 07:46:46,647 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.01 07:46:46" (1/1) ... [2022-01-19 07:46:46,652 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-19 07:46:46,674 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-19 07:46:46,930 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/parallel-ticket-3.wvr.c[3089,3102] [2022-01-19 07:46:46,935 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-19 07:46:46,943 INFO L203 MainTranslator]: Completed pre-run [2022-01-19 07:46:46,978 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/parallel-ticket-3.wvr.c[3089,3102] [2022-01-19 07:46:46,979 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-19 07:46:46,993 INFO L208 MainTranslator]: Completed translation [2022-01-19 07:46:46,993 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 07:46:46 WrapperNode [2022-01-19 07:46:46,994 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-19 07:46:46,995 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-01-19 07:46:46,995 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-01-19 07:46:46,995 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-01-19 07:46:47,001 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 07:46:46" (1/1) ... [2022-01-19 07:46:47,017 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 07:46:46" (1/1) ... [2022-01-19 07:46:47,034 INFO L137 Inliner]: procedures = 22, calls = 55, calls flagged for inlining = 7, calls inlined = 7, statements flattened = 158 [2022-01-19 07:46:47,035 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-01-19 07:46:47,035 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-19 07:46:47,035 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-19 07:46:47,035 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-19 07:46:47,041 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 07:46:46" (1/1) ... [2022-01-19 07:46:47,041 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 07:46:46" (1/1) ... [2022-01-19 07:46:47,044 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 07:46:46" (1/1) ... [2022-01-19 07:46:47,044 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 07:46:46" (1/1) ... [2022-01-19 07:46:47,047 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 07:46:46" (1/1) ... [2022-01-19 07:46:47,049 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 07:46:46" (1/1) ... [2022-01-19 07:46:47,050 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 07:46:46" (1/1) ... [2022-01-19 07:46:47,052 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-19 07:46:47,053 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-19 07:46:47,053 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-19 07:46:47,053 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-19 07:46:47,055 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 07:46:46" (1/1) ... [2022-01-19 07:46:47,072 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-19 07:46:47,083 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-19 07:46:47,095 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 07:46:47,115 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 07:46:47,139 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-19 07:46:47,139 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-01-19 07:46:47,139 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-01-19 07:46:47,139 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-01-19 07:46:47,139 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-01-19 07:46:47,139 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-01-19 07:46:47,139 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-01-19 07:46:47,140 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-01-19 07:46:47,140 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-01-19 07:46:47,140 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-01-19 07:46:47,140 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-01-19 07:46:47,140 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-01-19 07:46:47,140 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-19 07:46:47,140 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-19 07:46:47,140 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-01-19 07:46:47,140 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-01-19 07:46:47,142 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 07:46:47,247 INFO L234 CfgBuilder]: Building ICFG [2022-01-19 07:46:47,249 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-19 07:46:47,511 INFO L275 CfgBuilder]: Performing block encoding [2022-01-19 07:46:47,585 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-19 07:46:47,585 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-01-19 07:46:47,587 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.01 07:46:47 BoogieIcfgContainer [2022-01-19 07:46:47,588 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-19 07:46:47,589 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-19 07:46:47,589 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-19 07:46:47,592 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-19 07:46:47,592 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.01 07:46:46" (1/3) ... [2022-01-19 07:46:47,593 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7a9f55e3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.01 07:46:47, skipping insertion in model container [2022-01-19 07:46:47,593 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 07:46:46" (2/3) ... [2022-01-19 07:46:47,593 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7a9f55e3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.01 07:46:47, skipping insertion in model container [2022-01-19 07:46:47,593 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.01 07:46:47" (3/3) ... [2022-01-19 07:46:47,594 INFO L111 eAbstractionObserver]: Analyzing ICFG parallel-ticket-3.wvr.c [2022-01-19 07:46:47,599 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-01-19 07:46:47,599 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-01-19 07:46:47,599 INFO L534 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-01-19 07:46:47,651 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~post1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:46:47,651 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~post1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:46:47,652 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:46:47,652 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:46:47,653 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:46:47,653 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:46:47,653 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~post2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:46:47,654 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~post2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:46:47,654 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:46:47,654 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:46:47,654 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:46:47,654 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:46:47,654 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:46:47,655 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:46:47,655 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:46:47,655 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:46:47,656 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:46:47,656 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:46:47,657 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:46:47,658 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:46:47,658 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:46:47,658 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:46:47,659 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:46:47,659 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:46:47,659 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~post5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:46:47,661 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~post5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:46:47,661 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:46:47,661 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:46:47,661 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:46:47,661 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:46:47,662 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~post6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:46:47,662 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~post6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:46:47,662 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:46:47,662 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:46:47,663 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:46:47,663 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:46:47,665 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:46:47,665 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:46:47,665 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:46:47,666 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:46:47,666 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:46:47,666 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:46:47,667 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:46:47,667 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:46:47,667 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:46:47,667 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:46:47,668 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~post6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:46:47,668 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~post5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:46:47,669 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~post1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:46:47,669 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~post2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:46:47,670 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:46:47,670 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:46:47,670 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:46:47,670 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:46:47,675 INFO L148 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2022-01-19 07:46:47,727 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-19 07:46:47,734 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 07:46:47,735 INFO L340 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2022-01-19 07:46:47,747 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 127 places, 119 transitions, 262 flow [2022-01-19 07:46:47,812 INFO L129 PetriNetUnfolder]: 2/116 cut-off events. [2022-01-19 07:46:47,812 INFO L130 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-01-19 07:46:47,815 INFO L84 FinitePrefix]: Finished finitePrefix Result has 129 conditions, 116 events. 2/116 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 39 event pairs, 0 based on Foata normal form. 0/113 useless extension candidates. Maximal degree in co-relation 82. Up to 2 conditions per place. [2022-01-19 07:46:47,815 INFO L82 GeneralOperation]: Start removeDead. Operand has 127 places, 119 transitions, 262 flow [2022-01-19 07:46:47,820 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 113 places, 105 transitions, 228 flow [2022-01-19 07:46:47,855 INFO L129 PetriNetUnfolder]: 2/104 cut-off events. [2022-01-19 07:46:47,856 INFO L130 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-01-19 07:46:47,856 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 07:46:47,857 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] [2022-01-19 07:46:47,857 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-19 07:46:47,862 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 07:46:47,862 INFO L85 PathProgramCache]: Analyzing trace with hash -38046997, now seen corresponding path program 1 times [2022-01-19 07:46:47,869 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 07:46:47,869 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1618573320] [2022-01-19 07:46:47,870 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 07:46:47,870 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 07:46:48,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 07:46:48,512 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 07:46:48,512 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 07:46:48,512 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1618573320] [2022-01-19 07:46:48,513 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1618573320] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 07:46:48,513 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 07:46:48,513 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-01-19 07:46:48,514 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [331033004] [2022-01-19 07:46:48,515 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 07:46:48,523 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-01-19 07:46:48,523 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 07:46:48,550 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-01-19 07:46:48,552 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2022-01-19 07:46:48,555 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 77 out of 119 [2022-01-19 07:46:48,560 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 113 places, 105 transitions, 228 flow. Second operand has 12 states, 12 states have (on average 80.08333333333333) internal successors, (961), 12 states have internal predecessors, (961), 0 states have call successors, (0), 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 07:46:48,561 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 07:46:48,564 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 77 of 119 [2022-01-19 07:46:48,565 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 07:46:49,179 INFO L129 PetriNetUnfolder]: 439/1079 cut-off events. [2022-01-19 07:46:49,179 INFO L130 PetriNetUnfolder]: For 232/232 co-relation queries the response was YES. [2022-01-19 07:46:49,183 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2029 conditions, 1079 events. 439/1079 cut-off events. For 232/232 co-relation queries the response was YES. Maximal size of possible extension queue 60. Compared 5930 event pairs, 214 based on Foata normal form. 4/1047 useless extension candidates. Maximal degree in co-relation 1512. Up to 317 conditions per place. [2022-01-19 07:46:49,189 INFO L132 encePairwiseOnDemand]: 99/119 looper letters, 62 selfloop transitions, 19 changer transitions 26/171 dead transitions. [2022-01-19 07:46:49,189 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 128 places, 171 transitions, 610 flow [2022-01-19 07:46:49,190 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-01-19 07:46:49,192 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2022-01-19 07:46:49,202 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 1345 transitions. [2022-01-19 07:46:49,205 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7064075630252101 [2022-01-19 07:46:49,206 INFO L72 ComplementDD]: Start complementDD. Operand 16 states and 1345 transitions. [2022-01-19 07:46:49,206 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 1345 transitions. [2022-01-19 07:46:49,209 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 07:46:49,211 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 16 states and 1345 transitions. [2022-01-19 07:46:49,217 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 17 states, 16 states have (on average 84.0625) internal successors, (1345), 16 states have internal predecessors, (1345), 0 states have call successors, (0), 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 07:46:49,224 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 17 states, 17 states have (on average 119.0) internal successors, (2023), 17 states have internal predecessors, (2023), 0 states have call successors, (0), 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 07:46:49,225 INFO L81 ComplementDD]: Finished complementDD. Result has 17 states, 17 states have (on average 119.0) internal successors, (2023), 17 states have internal predecessors, (2023), 0 states have call successors, (0), 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 07:46:49,227 INFO L186 Difference]: Start difference. First operand has 113 places, 105 transitions, 228 flow. Second operand 16 states and 1345 transitions. [2022-01-19 07:46:49,228 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 128 places, 171 transitions, 610 flow [2022-01-19 07:46:49,233 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 122 places, 171 transitions, 574 flow, removed 0 selfloop flow, removed 6 redundant places. [2022-01-19 07:46:49,236 INFO L242 Difference]: Finished difference. Result has 131 places, 114 transitions, 322 flow [2022-01-19 07:46:49,238 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=119, PETRI_DIFFERENCE_MINUEND_FLOW=212, PETRI_DIFFERENCE_MINUEND_PLACES=107, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=103, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=91, PETRI_DIFFERENCE_SUBTRAHEND_STATES=16, PETRI_FLOW=322, PETRI_PLACES=131, PETRI_TRANSITIONS=114} [2022-01-19 07:46:49,241 INFO L334 CegarLoopForPetriNet]: 113 programPoint places, 18 predicate places. [2022-01-19 07:46:49,241 INFO L470 AbstractCegarLoop]: Abstraction has has 131 places, 114 transitions, 322 flow [2022-01-19 07:46:49,242 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 80.08333333333333) internal successors, (961), 12 states have internal predecessors, (961), 0 states have call successors, (0), 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 07:46:49,242 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 07:46:49,242 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] [2022-01-19 07:46:49,242 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-01-19 07:46:49,243 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-19 07:46:49,243 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 07:46:49,243 INFO L85 PathProgramCache]: Analyzing trace with hash -1859360431, now seen corresponding path program 2 times [2022-01-19 07:46:49,243 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 07:46:49,244 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [436003966] [2022-01-19 07:46:49,244 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 07:46:49,244 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 07:46:49,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 07:46:49,532 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 07:46:49,532 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 07:46:49,533 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [436003966] [2022-01-19 07:46:49,533 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [436003966] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 07:46:49,533 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 07:46:49,533 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-01-19 07:46:49,534 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [717479757] [2022-01-19 07:46:49,534 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 07:46:49,535 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-19 07:46:49,535 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 07:46:49,535 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-19 07:46:49,536 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2022-01-19 07:46:49,537 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 83 out of 119 [2022-01-19 07:46:49,538 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 131 places, 114 transitions, 322 flow. Second operand has 10 states, 10 states have (on average 86.1) internal successors, (861), 10 states have internal predecessors, (861), 0 states have call successors, (0), 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 07:46:49,538 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 07:46:49,539 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 83 of 119 [2022-01-19 07:46:49,539 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 07:46:49,865 INFO L129 PetriNetUnfolder]: 380/990 cut-off events. [2022-01-19 07:46:49,865 INFO L130 PetriNetUnfolder]: For 447/447 co-relation queries the response was YES. [2022-01-19 07:46:49,869 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2185 conditions, 990 events. 380/990 cut-off events. For 447/447 co-relation queries the response was YES. Maximal size of possible extension queue 57. Compared 5647 event pairs, 109 based on Foata normal form. 1/961 useless extension candidates. Maximal degree in co-relation 2167. Up to 326 conditions per place. [2022-01-19 07:46:49,874 INFO L132 encePairwiseOnDemand]: 108/119 looper letters, 43 selfloop transitions, 10 changer transitions 27/150 dead transitions. [2022-01-19 07:46:49,874 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 132 places, 150 transitions, 610 flow [2022-01-19 07:46:49,874 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-19 07:46:49,874 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2022-01-19 07:46:49,876 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 899 transitions. [2022-01-19 07:46:49,876 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7554621848739496 [2022-01-19 07:46:49,876 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 899 transitions. [2022-01-19 07:46:49,877 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 899 transitions. [2022-01-19 07:46:49,877 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 07:46:49,878 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 899 transitions. [2022-01-19 07:46:49,881 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 89.9) internal successors, (899), 10 states have internal predecessors, (899), 0 states have call successors, (0), 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 07:46:49,883 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 119.0) internal successors, (1309), 11 states have internal predecessors, (1309), 0 states have call successors, (0), 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 07:46:49,884 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 119.0) internal successors, (1309), 11 states have internal predecessors, (1309), 0 states have call successors, (0), 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 07:46:49,884 INFO L186 Difference]: Start difference. First operand has 131 places, 114 transitions, 322 flow. Second operand 10 states and 899 transitions. [2022-01-19 07:46:49,884 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 132 places, 150 transitions, 610 flow [2022-01-19 07:46:49,889 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 125 places, 150 transitions, 582 flow, removed 10 selfloop flow, removed 7 redundant places. [2022-01-19 07:46:49,892 INFO L242 Difference]: Finished difference. Result has 130 places, 116 transitions, 352 flow [2022-01-19 07:46:49,892 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=119, PETRI_DIFFERENCE_MINUEND_FLOW=302, PETRI_DIFFERENCE_MINUEND_PLACES=116, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=114, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=104, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=352, PETRI_PLACES=130, PETRI_TRANSITIONS=116} [2022-01-19 07:46:49,893 INFO L334 CegarLoopForPetriNet]: 113 programPoint places, 17 predicate places. [2022-01-19 07:46:49,893 INFO L470 AbstractCegarLoop]: Abstraction has has 130 places, 116 transitions, 352 flow [2022-01-19 07:46:49,894 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 86.1) internal successors, (861), 10 states have internal predecessors, (861), 0 states have call successors, (0), 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 07:46:49,894 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 07:46:49,894 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] [2022-01-19 07:46:49,894 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-01-19 07:46:49,894 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-19 07:46:49,895 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 07:46:49,895 INFO L85 PathProgramCache]: Analyzing trace with hash -200941397, now seen corresponding path program 3 times [2022-01-19 07:46:49,895 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 07:46:49,895 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [238155945] [2022-01-19 07:46:49,895 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 07:46:49,895 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 07:46:49,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 07:46:49,996 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 07:46:49,997 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 07:46:49,998 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [238155945] [2022-01-19 07:46:49,998 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [238155945] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 07:46:49,998 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 07:46:49,998 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-19 07:46:49,998 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [801223124] [2022-01-19 07:46:49,999 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 07:46:49,999 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-01-19 07:46:49,999 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 07:46:50,000 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-01-19 07:46:50,000 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-01-19 07:46:50,001 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 85 out of 119 [2022-01-19 07:46:50,002 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 130 places, 116 transitions, 352 flow. Second operand has 8 states, 8 states have (on average 88.625) internal successors, (709), 8 states have internal predecessors, (709), 0 states have call successors, (0), 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 07:46:50,002 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 07:46:50,002 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 85 of 119 [2022-01-19 07:46:50,002 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 07:46:50,160 INFO L129 PetriNetUnfolder]: 196/640 cut-off events. [2022-01-19 07:46:50,160 INFO L130 PetriNetUnfolder]: For 325/332 co-relation queries the response was YES. [2022-01-19 07:46:50,162 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1435 conditions, 640 events. 196/640 cut-off events. For 325/332 co-relation queries the response was YES. Maximal size of possible extension queue 43. Compared 3346 event pairs, 30 based on Foata normal form. 13/629 useless extension candidates. Maximal degree in co-relation 1412. Up to 133 conditions per place. [2022-01-19 07:46:50,168 INFO L132 encePairwiseOnDemand]: 109/119 looper letters, 45 selfloop transitions, 24 changer transitions 0/151 dead transitions. [2022-01-19 07:46:50,168 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 133 places, 151 transitions, 598 flow [2022-01-19 07:46:50,168 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-01-19 07:46:50,168 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2022-01-19 07:46:50,170 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 744 transitions. [2022-01-19 07:46:50,171 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7815126050420168 [2022-01-19 07:46:50,171 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 744 transitions. [2022-01-19 07:46:50,171 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 744 transitions. [2022-01-19 07:46:50,172 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 07:46:50,172 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 744 transitions. [2022-01-19 07:46:50,173 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 93.0) internal successors, (744), 8 states have internal predecessors, (744), 0 states have call successors, (0), 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 07:46:50,175 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 119.0) internal successors, (1071), 9 states have internal predecessors, (1071), 0 states have call successors, (0), 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 07:46:50,175 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 119.0) internal successors, (1071), 9 states have internal predecessors, (1071), 0 states have call successors, (0), 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 07:46:50,175 INFO L186 Difference]: Start difference. First operand has 130 places, 116 transitions, 352 flow. Second operand 8 states and 744 transitions. [2022-01-19 07:46:50,175 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 133 places, 151 transitions, 598 flow [2022-01-19 07:46:50,180 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 125 places, 151 transitions, 568 flow, removed 8 selfloop flow, removed 8 redundant places. [2022-01-19 07:46:50,185 INFO L242 Difference]: Finished difference. Result has 126 places, 130 transitions, 429 flow [2022-01-19 07:46:50,188 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=119, PETRI_DIFFERENCE_MINUEND_FLOW=328, PETRI_DIFFERENCE_MINUEND_PLACES=118, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=116, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=104, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=429, PETRI_PLACES=126, PETRI_TRANSITIONS=130} [2022-01-19 07:46:50,190 INFO L334 CegarLoopForPetriNet]: 113 programPoint places, 13 predicate places. [2022-01-19 07:46:50,195 INFO L470 AbstractCegarLoop]: Abstraction has has 126 places, 130 transitions, 429 flow [2022-01-19 07:46:50,197 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 88.625) internal successors, (709), 8 states have internal predecessors, (709), 0 states have call successors, (0), 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 07:46:50,197 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 07:46:50,198 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] [2022-01-19 07:46:50,198 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-01-19 07:46:50,198 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-19 07:46:50,198 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 07:46:50,199 INFO L85 PathProgramCache]: Analyzing trace with hash 2098425681, now seen corresponding path program 4 times [2022-01-19 07:46:50,199 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 07:46:50,199 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1156394859] [2022-01-19 07:46:50,199 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 07:46:50,199 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 07:46:50,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 07:46:50,297 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 07:46:50,298 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 07:46:50,298 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1156394859] [2022-01-19 07:46:50,298 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1156394859] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 07:46:50,298 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 07:46:50,298 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-19 07:46:50,298 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1325385188] [2022-01-19 07:46:50,298 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 07:46:50,299 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-01-19 07:46:50,299 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 07:46:50,299 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-01-19 07:46:50,299 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2022-01-19 07:46:50,300 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 85 out of 119 [2022-01-19 07:46:50,301 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 126 places, 130 transitions, 429 flow. Second operand has 7 states, 7 states have (on average 89.14285714285714) internal successors, (624), 7 states have internal predecessors, (624), 0 states have call successors, (0), 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 07:46:50,301 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 07:46:50,301 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 85 of 119 [2022-01-19 07:46:50,301 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 07:46:50,446 INFO L129 PetriNetUnfolder]: 179/701 cut-off events. [2022-01-19 07:46:50,446 INFO L130 PetriNetUnfolder]: For 571/596 co-relation queries the response was YES. [2022-01-19 07:46:50,448 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1645 conditions, 701 events. 179/701 cut-off events. For 571/596 co-relation queries the response was YES. Maximal size of possible extension queue 48. Compared 4132 event pairs, 46 based on Foata normal form. 36/710 useless extension candidates. Maximal degree in co-relation 872. Up to 125 conditions per place. [2022-01-19 07:46:50,451 INFO L132 encePairwiseOnDemand]: 109/119 looper letters, 48 selfloop transitions, 26 changer transitions 0/156 dead transitions. [2022-01-19 07:46:50,451 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 132 places, 156 transitions, 687 flow [2022-01-19 07:46:50,452 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-01-19 07:46:50,452 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2022-01-19 07:46:50,453 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 653 transitions. [2022-01-19 07:46:50,453 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7839135654261705 [2022-01-19 07:46:50,454 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 653 transitions. [2022-01-19 07:46:50,454 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 653 transitions. [2022-01-19 07:46:50,454 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 07:46:50,454 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 653 transitions. [2022-01-19 07:46:50,455 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 93.28571428571429) internal successors, (653), 7 states have internal predecessors, (653), 0 states have call successors, (0), 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 07:46:50,457 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 119.0) internal successors, (952), 8 states have internal predecessors, (952), 0 states have call successors, (0), 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 07:46:50,457 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 119.0) internal successors, (952), 8 states have internal predecessors, (952), 0 states have call successors, (0), 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 07:46:50,457 INFO L186 Difference]: Start difference. First operand has 126 places, 130 transitions, 429 flow. Second operand 7 states and 653 transitions. [2022-01-19 07:46:50,457 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 132 places, 156 transitions, 687 flow [2022-01-19 07:46:50,461 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 129 places, 156 transitions, 657 flow, removed 11 selfloop flow, removed 3 redundant places. [2022-01-19 07:46:50,465 INFO L242 Difference]: Finished difference. Result has 131 places, 140 transitions, 546 flow [2022-01-19 07:46:50,465 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=119, PETRI_DIFFERENCE_MINUEND_FLOW=402, PETRI_DIFFERENCE_MINUEND_PLACES=123, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=129, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=17, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=108, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=546, PETRI_PLACES=131, PETRI_TRANSITIONS=140} [2022-01-19 07:46:50,466 INFO L334 CegarLoopForPetriNet]: 113 programPoint places, 18 predicate places. [2022-01-19 07:46:50,466 INFO L470 AbstractCegarLoop]: Abstraction has has 131 places, 140 transitions, 546 flow [2022-01-19 07:46:50,467 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 89.14285714285714) internal successors, (624), 7 states have internal predecessors, (624), 0 states have call successors, (0), 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 07:46:50,467 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 07:46:50,467 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] [2022-01-19 07:46:50,467 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-01-19 07:46:50,467 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-19 07:46:50,468 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 07:46:50,468 INFO L85 PathProgramCache]: Analyzing trace with hash 1795902233, now seen corresponding path program 5 times [2022-01-19 07:46:50,468 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 07:46:50,469 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1716392895] [2022-01-19 07:46:50,469 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 07:46:50,469 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 07:46:50,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 07:46:50,561 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 07:46:50,561 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 07:46:50,562 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1716392895] [2022-01-19 07:46:50,562 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1716392895] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 07:46:50,562 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 07:46:50,562 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-19 07:46:50,562 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2128141855] [2022-01-19 07:46:50,562 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 07:46:50,563 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-01-19 07:46:50,563 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 07:46:50,563 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-01-19 07:46:50,563 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2022-01-19 07:46:50,564 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 85 out of 119 [2022-01-19 07:46:50,565 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 131 places, 140 transitions, 546 flow. Second operand has 7 states, 7 states have (on average 89.14285714285714) internal successors, (624), 7 states have internal predecessors, (624), 0 states have call successors, (0), 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 07:46:50,565 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 07:46:50,565 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 85 of 119 [2022-01-19 07:46:50,565 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 07:46:50,704 INFO L129 PetriNetUnfolder]: 151/629 cut-off events. [2022-01-19 07:46:50,704 INFO L130 PetriNetUnfolder]: For 847/883 co-relation queries the response was YES. [2022-01-19 07:46:50,707 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1659 conditions, 629 events. 151/629 cut-off events. For 847/883 co-relation queries the response was YES. Maximal size of possible extension queue 39. Compared 3551 event pairs, 44 based on Foata normal form. 36/642 useless extension candidates. Maximal degree in co-relation 808. Up to 112 conditions per place. [2022-01-19 07:46:50,710 INFO L132 encePairwiseOnDemand]: 109/119 looper letters, 46 selfloop transitions, 26 changer transitions 5/158 dead transitions. [2022-01-19 07:46:50,710 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 137 places, 158 transitions, 788 flow [2022-01-19 07:46:50,710 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-01-19 07:46:50,710 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2022-01-19 07:46:50,712 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 654 transitions. [2022-01-19 07:46:50,712 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7851140456182473 [2022-01-19 07:46:50,712 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 654 transitions. [2022-01-19 07:46:50,712 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 654 transitions. [2022-01-19 07:46:50,713 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 07:46:50,713 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 654 transitions. [2022-01-19 07:46:50,714 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 93.42857142857143) internal successors, (654), 7 states have internal predecessors, (654), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 07:46:50,715 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 119.0) internal successors, (952), 8 states have internal predecessors, (952), 0 states have call successors, (0), 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 07:46:50,716 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 119.0) internal successors, (952), 8 states have internal predecessors, (952), 0 states have call successors, (0), 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 07:46:50,716 INFO L186 Difference]: Start difference. First operand has 131 places, 140 transitions, 546 flow. Second operand 7 states and 654 transitions. [2022-01-19 07:46:50,716 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 137 places, 158 transitions, 788 flow [2022-01-19 07:46:50,719 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 134 places, 158 transitions, 764 flow, removed 8 selfloop flow, removed 3 redundant places. [2022-01-19 07:46:50,721 INFO L242 Difference]: Finished difference. Result has 135 places, 139 transitions, 577 flow [2022-01-19 07:46:50,722 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=119, PETRI_DIFFERENCE_MINUEND_FLOW=525, PETRI_DIFFERENCE_MINUEND_PLACES=128, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=139, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=24, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=115, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=577, PETRI_PLACES=135, PETRI_TRANSITIONS=139} [2022-01-19 07:46:50,722 INFO L334 CegarLoopForPetriNet]: 113 programPoint places, 22 predicate places. [2022-01-19 07:46:50,722 INFO L470 AbstractCegarLoop]: Abstraction has has 135 places, 139 transitions, 577 flow [2022-01-19 07:46:50,723 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 89.14285714285714) internal successors, (624), 7 states have internal predecessors, (624), 0 states have call successors, (0), 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 07:46:50,723 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 07:46:50,723 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] [2022-01-19 07:46:50,723 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-01-19 07:46:50,723 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-19 07:46:50,724 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 07:46:50,724 INFO L85 PathProgramCache]: Analyzing trace with hash 1422402101, now seen corresponding path program 6 times [2022-01-19 07:46:50,724 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 07:46:50,724 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1220414948] [2022-01-19 07:46:50,724 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 07:46:50,724 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 07:46:50,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 07:46:50,803 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 07:46:50,803 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 07:46:50,804 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1220414948] [2022-01-19 07:46:50,804 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1220414948] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 07:46:50,804 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 07:46:50,804 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-19 07:46:50,804 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [136105625] [2022-01-19 07:46:50,804 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 07:46:50,805 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-01-19 07:46:50,805 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 07:46:50,805 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-01-19 07:46:50,805 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2022-01-19 07:46:50,806 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 85 out of 119 [2022-01-19 07:46:50,807 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 135 places, 139 transitions, 577 flow. Second operand has 7 states, 7 states have (on average 89.14285714285714) internal successors, (624), 7 states have internal predecessors, (624), 0 states have call successors, (0), 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 07:46:50,807 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 07:46:50,807 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 85 of 119 [2022-01-19 07:46:50,807 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 07:46:50,911 INFO L129 PetriNetUnfolder]: 44/289 cut-off events. [2022-01-19 07:46:50,911 INFO L130 PetriNetUnfolder]: For 375/399 co-relation queries the response was YES. [2022-01-19 07:46:50,912 INFO L84 FinitePrefix]: Finished finitePrefix Result has 745 conditions, 289 events. 44/289 cut-off events. For 375/399 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 986 event pairs, 5 based on Foata normal form. 23/308 useless extension candidates. Maximal degree in co-relation 455. Up to 40 conditions per place. [2022-01-19 07:46:50,914 INFO L132 encePairwiseOnDemand]: 109/119 looper letters, 38 selfloop transitions, 23 changer transitions 5/141 dead transitions. [2022-01-19 07:46:50,914 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 141 places, 141 transitions, 712 flow [2022-01-19 07:46:50,914 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-01-19 07:46:50,914 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2022-01-19 07:46:50,916 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 647 transitions. [2022-01-19 07:46:50,916 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7767106842737095 [2022-01-19 07:46:50,916 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 647 transitions. [2022-01-19 07:46:50,916 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 647 transitions. [2022-01-19 07:46:50,917 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 07:46:50,917 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 647 transitions. [2022-01-19 07:46:50,918 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 92.42857142857143) internal successors, (647), 7 states have internal predecessors, (647), 0 states have call successors, (0), 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 07:46:50,919 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 119.0) internal successors, (952), 8 states have internal predecessors, (952), 0 states have call successors, (0), 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 07:46:50,920 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 119.0) internal successors, (952), 8 states have internal predecessors, (952), 0 states have call successors, (0), 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 07:46:50,920 INFO L186 Difference]: Start difference. First operand has 135 places, 139 transitions, 577 flow. Second operand 7 states and 647 transitions. [2022-01-19 07:46:50,920 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 141 places, 141 transitions, 712 flow [2022-01-19 07:46:50,923 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 133 places, 141 transitions, 664 flow, removed 1 selfloop flow, removed 8 redundant places. [2022-01-19 07:46:50,925 INFO L242 Difference]: Finished difference. Result has 134 places, 126 transitions, 499 flow [2022-01-19 07:46:50,925 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=119, PETRI_DIFFERENCE_MINUEND_FLOW=446, PETRI_DIFFERENCE_MINUEND_PLACES=127, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=126, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=19, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=107, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=499, PETRI_PLACES=134, PETRI_TRANSITIONS=126} [2022-01-19 07:46:50,925 INFO L334 CegarLoopForPetriNet]: 113 programPoint places, 21 predicate places. [2022-01-19 07:46:50,926 INFO L470 AbstractCegarLoop]: Abstraction has has 134 places, 126 transitions, 499 flow [2022-01-19 07:46:50,926 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 89.14285714285714) internal successors, (624), 7 states have internal predecessors, (624), 0 states have call successors, (0), 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 07:46:50,926 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 07:46:50,926 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] [2022-01-19 07:46:50,927 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-01-19 07:46:50,927 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-19 07:46:50,927 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 07:46:50,927 INFO L85 PathProgramCache]: Analyzing trace with hash 307161313, now seen corresponding path program 7 times [2022-01-19 07:46:50,927 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 07:46:50,928 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [351602757] [2022-01-19 07:46:50,928 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 07:46:50,928 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 07:46:50,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 07:46:51,033 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 07:46:51,033 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 07:46:51,033 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [351602757] [2022-01-19 07:46:51,033 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [351602757] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 07:46:51,033 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 07:46:51,033 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-19 07:46:51,034 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [42861042] [2022-01-19 07:46:51,034 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 07:46:51,037 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-01-19 07:46:51,037 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 07:46:51,037 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-01-19 07:46:51,037 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-01-19 07:46:51,038 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 85 out of 119 [2022-01-19 07:46:51,039 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 134 places, 126 transitions, 499 flow. Second operand has 8 states, 8 states have (on average 88.625) internal successors, (709), 8 states have internal predecessors, (709), 0 states have call successors, (0), 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 07:46:51,039 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 07:46:51,039 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 85 of 119 [2022-01-19 07:46:51,039 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 07:46:51,144 INFO L129 PetriNetUnfolder]: 40/266 cut-off events. [2022-01-19 07:46:51,144 INFO L130 PetriNetUnfolder]: For 434/469 co-relation queries the response was YES. [2022-01-19 07:46:51,145 INFO L84 FinitePrefix]: Finished finitePrefix Result has 690 conditions, 266 events. 40/266 cut-off events. For 434/469 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 817 event pairs, 5 based on Foata normal form. 15/278 useless extension candidates. Maximal degree in co-relation 416. Up to 39 conditions per place. [2022-01-19 07:46:51,146 INFO L132 encePairwiseOnDemand]: 109/119 looper letters, 40 selfloop transitions, 26 changer transitions 3/144 dead transitions. [2022-01-19 07:46:51,146 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 141 places, 144 transitions, 704 flow [2022-01-19 07:46:51,146 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-01-19 07:46:51,146 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2022-01-19 07:46:51,148 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 739 transitions. [2022-01-19 07:46:51,148 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7762605042016807 [2022-01-19 07:46:51,148 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 739 transitions. [2022-01-19 07:46:51,148 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 739 transitions. [2022-01-19 07:46:51,149 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 07:46:51,149 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 739 transitions. [2022-01-19 07:46:51,150 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 92.375) internal successors, (739), 8 states have internal predecessors, (739), 0 states have call successors, (0), 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 07:46:51,152 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 119.0) internal successors, (1071), 9 states have internal predecessors, (1071), 0 states have call successors, (0), 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 07:46:51,152 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 119.0) internal successors, (1071), 9 states have internal predecessors, (1071), 0 states have call successors, (0), 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 07:46:51,152 INFO L186 Difference]: Start difference. First operand has 134 places, 126 transitions, 499 flow. Second operand 8 states and 739 transitions. [2022-01-19 07:46:51,153 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 141 places, 144 transitions, 704 flow [2022-01-19 07:46:51,155 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 136 places, 144 transitions, 674 flow, removed 0 selfloop flow, removed 5 redundant places. [2022-01-19 07:46:51,157 INFO L242 Difference]: Finished difference. Result has 137 places, 124 transitions, 511 flow [2022-01-19 07:46:51,157 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=119, PETRI_DIFFERENCE_MINUEND_FLOW=469, PETRI_DIFFERENCE_MINUEND_PLACES=129, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=126, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=26, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=100, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=511, PETRI_PLACES=137, PETRI_TRANSITIONS=124} [2022-01-19 07:46:51,158 INFO L334 CegarLoopForPetriNet]: 113 programPoint places, 24 predicate places. [2022-01-19 07:46:51,158 INFO L470 AbstractCegarLoop]: Abstraction has has 137 places, 124 transitions, 511 flow [2022-01-19 07:46:51,158 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 88.625) internal successors, (709), 8 states have internal predecessors, (709), 0 states have call successors, (0), 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 07:46:51,158 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 07:46:51,158 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] [2022-01-19 07:46:51,158 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-01-19 07:46:51,159 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-19 07:46:51,159 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 07:46:51,159 INFO L85 PathProgramCache]: Analyzing trace with hash -1232291941, now seen corresponding path program 8 times [2022-01-19 07:46:51,159 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 07:46:51,159 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [98697999] [2022-01-19 07:46:51,159 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 07:46:51,159 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 07:46:51,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 07:46:51,296 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 07:46:51,296 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 07:46:51,296 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [98697999] [2022-01-19 07:46:51,296 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [98697999] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 07:46:51,296 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 07:46:51,296 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-01-19 07:46:51,297 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1350834912] [2022-01-19 07:46:51,297 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 07:46:51,297 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-01-19 07:46:51,297 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 07:46:51,297 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-01-19 07:46:51,298 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-01-19 07:46:51,298 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 77 out of 119 [2022-01-19 07:46:51,299 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 137 places, 124 transitions, 511 flow. Second operand has 9 states, 9 states have (on average 81.11111111111111) internal successors, (730), 9 states have internal predecessors, (730), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 07:46:51,299 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 07:46:51,299 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 77 of 119 [2022-01-19 07:46:51,299 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 07:46:51,478 INFO L129 PetriNetUnfolder]: 54/287 cut-off events. [2022-01-19 07:46:51,478 INFO L130 PetriNetUnfolder]: For 612/612 co-relation queries the response was YES. [2022-01-19 07:46:51,479 INFO L84 FinitePrefix]: Finished finitePrefix Result has 837 conditions, 287 events. 54/287 cut-off events. For 612/612 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 865 event pairs, 5 based on Foata normal form. 3/286 useless extension candidates. Maximal degree in co-relation 490. Up to 56 conditions per place. [2022-01-19 07:46:51,481 INFO L132 encePairwiseOnDemand]: 109/119 looper letters, 54 selfloop transitions, 21 changer transitions 8/147 dead transitions. [2022-01-19 07:46:51,481 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 146 places, 147 transitions, 790 flow [2022-01-19 07:46:51,481 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-19 07:46:51,481 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2022-01-19 07:46:51,483 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 840 transitions. [2022-01-19 07:46:51,483 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7058823529411765 [2022-01-19 07:46:51,483 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 840 transitions. [2022-01-19 07:46:51,484 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 840 transitions. [2022-01-19 07:46:51,484 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 07:46:51,484 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 840 transitions. [2022-01-19 07:46:51,486 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 84.0) internal successors, (840), 10 states have internal predecessors, (840), 0 states have call successors, (0), 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 07:46:51,488 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 119.0) internal successors, (1309), 11 states have internal predecessors, (1309), 0 states have call successors, (0), 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 07:46:51,488 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 119.0) internal successors, (1309), 11 states have internal predecessors, (1309), 0 states have call successors, (0), 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 07:46:51,488 INFO L186 Difference]: Start difference. First operand has 137 places, 124 transitions, 511 flow. Second operand 10 states and 840 transitions. [2022-01-19 07:46:51,488 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 146 places, 147 transitions, 790 flow [2022-01-19 07:46:51,492 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 139 places, 147 transitions, 736 flow, removed 4 selfloop flow, removed 7 redundant places. [2022-01-19 07:46:51,498 INFO L242 Difference]: Finished difference. Result has 140 places, 122 transitions, 488 flow [2022-01-19 07:46:51,498 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=119, PETRI_DIFFERENCE_MINUEND_FLOW=461, PETRI_DIFFERENCE_MINUEND_PLACES=130, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=124, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=21, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=103, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=488, PETRI_PLACES=140, PETRI_TRANSITIONS=122} [2022-01-19 07:46:51,500 INFO L334 CegarLoopForPetriNet]: 113 programPoint places, 27 predicate places. [2022-01-19 07:46:51,500 INFO L470 AbstractCegarLoop]: Abstraction has has 140 places, 122 transitions, 488 flow [2022-01-19 07:46:51,501 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 81.11111111111111) internal successors, (730), 9 states have internal predecessors, (730), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 07:46:51,501 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 07:46:51,501 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] [2022-01-19 07:46:51,501 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-01-19 07:46:51,501 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-19 07:46:51,501 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 07:46:51,501 INFO L85 PathProgramCache]: Analyzing trace with hash -1779733505, now seen corresponding path program 9 times [2022-01-19 07:46:51,502 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 07:46:51,502 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [719091863] [2022-01-19 07:46:51,502 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 07:46:51,502 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 07:46:51,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 07:46:51,651 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 07:46:51,651 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 07:46:51,651 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [719091863] [2022-01-19 07:46:51,652 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [719091863] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 07:46:51,652 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 07:46:51,652 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-01-19 07:46:51,652 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1856820561] [2022-01-19 07:46:51,652 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 07:46:51,653 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-01-19 07:46:51,653 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 07:46:51,653 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-01-19 07:46:51,653 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-01-19 07:46:51,654 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 77 out of 119 [2022-01-19 07:46:51,655 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 140 places, 122 transitions, 488 flow. Second operand has 9 states, 9 states have (on average 81.11111111111111) internal successors, (730), 9 states have internal predecessors, (730), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 07:46:51,655 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 07:46:51,655 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 77 of 119 [2022-01-19 07:46:51,655 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 07:46:51,846 INFO L129 PetriNetUnfolder]: 36/246 cut-off events. [2022-01-19 07:46:51,846 INFO L130 PetriNetUnfolder]: For 480/480 co-relation queries the response was YES. [2022-01-19 07:46:51,847 INFO L84 FinitePrefix]: Finished finitePrefix Result has 706 conditions, 246 events. 36/246 cut-off events. For 480/480 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 695 event pairs, 2 based on Foata normal form. 8/250 useless extension candidates. Maximal degree in co-relation 477. Up to 36 conditions per place. [2022-01-19 07:46:51,847 INFO L132 encePairwiseOnDemand]: 109/119 looper letters, 40 selfloop transitions, 12 changer transitions 25/141 dead transitions. [2022-01-19 07:46:51,848 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 146 places, 141 transitions, 747 flow [2022-01-19 07:46:51,848 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-19 07:46:51,848 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2022-01-19 07:46:51,849 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 841 transitions. [2022-01-19 07:46:51,850 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7067226890756303 [2022-01-19 07:46:51,850 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 841 transitions. [2022-01-19 07:46:51,850 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 841 transitions. [2022-01-19 07:46:51,851 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 07:46:51,851 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 841 transitions. [2022-01-19 07:46:51,852 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 84.1) internal successors, (841), 10 states have internal predecessors, (841), 0 states have call successors, (0), 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 07:46:51,854 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 119.0) internal successors, (1309), 11 states have internal predecessors, (1309), 0 states have call successors, (0), 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 07:46:51,855 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 119.0) internal successors, (1309), 11 states have internal predecessors, (1309), 0 states have call successors, (0), 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 07:46:51,855 INFO L186 Difference]: Start difference. First operand has 140 places, 122 transitions, 488 flow. Second operand 10 states and 841 transitions. [2022-01-19 07:46:51,855 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 146 places, 141 transitions, 747 flow [2022-01-19 07:46:51,858 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 137 places, 141 transitions, 684 flow, removed 7 selfloop flow, removed 9 redundant places. [2022-01-19 07:46:51,861 INFO L242 Difference]: Finished difference. Result has 139 places, 107 transitions, 351 flow [2022-01-19 07:46:51,861 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=119, PETRI_DIFFERENCE_MINUEND_FLOW=410, PETRI_DIFFERENCE_MINUEND_PLACES=128, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=117, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=105, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=351, PETRI_PLACES=139, PETRI_TRANSITIONS=107} [2022-01-19 07:46:51,862 INFO L334 CegarLoopForPetriNet]: 113 programPoint places, 26 predicate places. [2022-01-19 07:46:51,862 INFO L470 AbstractCegarLoop]: Abstraction has has 139 places, 107 transitions, 351 flow [2022-01-19 07:46:51,862 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 81.11111111111111) internal successors, (730), 9 states have internal predecessors, (730), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 07:46:51,863 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 07:46:51,863 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] [2022-01-19 07:46:51,863 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-01-19 07:46:51,863 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-19 07:46:51,863 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 07:46:51,864 INFO L85 PathProgramCache]: Analyzing trace with hash -1704188151, now seen corresponding path program 10 times [2022-01-19 07:46:51,864 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 07:46:51,864 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [835603979] [2022-01-19 07:46:51,864 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 07:46:51,864 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 07:46:51,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 07:46:52,001 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 07:46:52,002 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 07:46:52,002 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [835603979] [2022-01-19 07:46:52,002 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [835603979] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 07:46:52,002 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 07:46:52,002 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-01-19 07:46:52,002 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [566380294] [2022-01-19 07:46:52,002 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 07:46:52,003 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-01-19 07:46:52,003 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 07:46:52,003 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-01-19 07:46:52,003 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-01-19 07:46:52,004 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 77 out of 119 [2022-01-19 07:46:52,005 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 139 places, 107 transitions, 351 flow. Second operand has 9 states, 9 states have (on average 81.11111111111111) internal successors, (730), 9 states have internal predecessors, (730), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 07:46:52,005 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 07:46:52,005 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 77 of 119 [2022-01-19 07:46:52,005 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 07:46:52,124 INFO L129 PetriNetUnfolder]: 6/95 cut-off events. [2022-01-19 07:46:52,125 INFO L130 PetriNetUnfolder]: For 120/120 co-relation queries the response was YES. [2022-01-19 07:46:52,125 INFO L84 FinitePrefix]: Finished finitePrefix Result has 240 conditions, 95 events. 6/95 cut-off events. For 120/120 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 71 event pairs, 0 based on Foata normal form. 6/101 useless extension candidates. Maximal degree in co-relation 191. Up to 11 conditions per place. [2022-01-19 07:46:52,125 INFO L132 encePairwiseOnDemand]: 111/119 looper letters, 0 selfloop transitions, 0 changer transitions 87/87 dead transitions. [2022-01-19 07:46:52,125 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 119 places, 87 transitions, 368 flow [2022-01-19 07:46:52,125 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-19 07:46:52,126 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2022-01-19 07:46:52,126 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 807 transitions. [2022-01-19 07:46:52,127 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.6781512605042017 [2022-01-19 07:46:52,127 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 807 transitions. [2022-01-19 07:46:52,127 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 807 transitions. [2022-01-19 07:46:52,127 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 07:46:52,128 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 807 transitions. [2022-01-19 07:46:52,129 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 80.7) internal successors, (807), 10 states have internal predecessors, (807), 0 states have call successors, (0), 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 07:46:52,131 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 119.0) internal successors, (1309), 11 states have internal predecessors, (1309), 0 states have call successors, (0), 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 07:46:52,131 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 119.0) internal successors, (1309), 11 states have internal predecessors, (1309), 0 states have call successors, (0), 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 07:46:52,131 INFO L186 Difference]: Start difference. First operand has 139 places, 107 transitions, 351 flow. Second operand 10 states and 807 transitions. [2022-01-19 07:46:52,131 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 119 places, 87 transitions, 368 flow [2022-01-19 07:46:52,133 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 99 places, 87 transitions, 285 flow, removed 16 selfloop flow, removed 20 redundant places. [2022-01-19 07:46:52,133 INFO L242 Difference]: Finished difference. Result has 99 places, 0 transitions, 0 flow [2022-01-19 07:46:52,133 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=119, PETRI_DIFFERENCE_MINUEND_FLOW=195, PETRI_DIFFERENCE_MINUEND_PLACES=90, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=79, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=79, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=0, PETRI_PLACES=99, PETRI_TRANSITIONS=0} [2022-01-19 07:46:52,134 INFO L334 CegarLoopForPetriNet]: 113 programPoint places, -14 predicate places. [2022-01-19 07:46:52,134 INFO L470 AbstractCegarLoop]: Abstraction has has 99 places, 0 transitions, 0 flow [2022-01-19 07:46:52,135 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 81.11111111111111) internal successors, (730), 9 states have internal predecessors, (730), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 07:46:52,137 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 4 remaining) [2022-01-19 07:46:52,137 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATION (2 of 4 remaining) [2022-01-19 07:46:52,137 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATION (1 of 4 remaining) [2022-01-19 07:46:52,137 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATION (0 of 4 remaining) [2022-01-19 07:46:52,137 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-01-19 07:46:52,140 INFO L732 BasicCegarLoop]: Path program histogram: [10] [2022-01-19 07:46:52,142 INFO L230 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-01-19 07:46:52,142 INFO L180 ceAbstractionStarter]: Computing trace abstraction results [2022-01-19 07:46:52,144 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.01 07:46:52 BasicIcfg [2022-01-19 07:46:52,144 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-01-19 07:46:52,145 INFO L158 Benchmark]: Toolchain (without parser) took 5504.31ms. Allocated memory was 413.1MB in the beginning and 580.9MB in the end (delta: 167.8MB). Free memory was 356.1MB in the beginning and 372.7MB in the end (delta: -16.6MB). Peak memory consumption was 153.2MB. Max. memory is 16.0GB. [2022-01-19 07:46:52,145 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 413.1MB. Free memory is still 372.5MB. There was no memory consumed. Max. memory is 16.0GB. [2022-01-19 07:46:52,145 INFO L158 Benchmark]: CACSL2BoogieTranslator took 352.16ms. Allocated memory was 413.1MB in the beginning and 580.9MB in the end (delta: 167.8MB). Free memory was 356.0MB in the beginning and 548.4MB in the end (delta: -192.4MB). Peak memory consumption was 8.7MB. Max. memory is 16.0GB. [2022-01-19 07:46:52,145 INFO L158 Benchmark]: Boogie Procedure Inliner took 39.89ms. Allocated memory is still 580.9MB. Free memory was 548.4MB in the beginning and 547.3MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2022-01-19 07:46:52,146 INFO L158 Benchmark]: Boogie Preprocessor took 16.71ms. Allocated memory is still 580.9MB. Free memory was 547.3MB in the beginning and 545.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2022-01-19 07:46:52,146 INFO L158 Benchmark]: RCFGBuilder took 535.07ms. Allocated memory is still 580.9MB. Free memory was 545.2MB in the beginning and 526.3MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.0GB. [2022-01-19 07:46:52,146 INFO L158 Benchmark]: TraceAbstraction took 4555.34ms. Allocated memory is still 580.9MB. Free memory was 526.3MB in the beginning and 372.7MB in the end (delta: 153.6MB). Peak memory consumption was 155.8MB. Max. memory is 16.0GB. [2022-01-19 07:46:52,147 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14ms. Allocated memory is still 413.1MB. Free memory is still 372.5MB. There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 352.16ms. Allocated memory was 413.1MB in the beginning and 580.9MB in the end (delta: 167.8MB). Free memory was 356.0MB in the beginning and 548.4MB in the end (delta: -192.4MB). Peak memory consumption was 8.7MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 39.89ms. Allocated memory is still 580.9MB. Free memory was 548.4MB in the beginning and 547.3MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * Boogie Preprocessor took 16.71ms. Allocated memory is still 580.9MB. Free memory was 547.3MB in the beginning and 545.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * RCFGBuilder took 535.07ms. Allocated memory is still 580.9MB. Free memory was 545.2MB in the beginning and 526.3MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.0GB. * TraceAbstraction took 4555.34ms. Allocated memory is still 580.9MB. Free memory was 526.3MB in the beginning and 372.7MB in the end (delta: 153.6MB). Peak memory consumption was 155.8MB. Max. memory is 16.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 124]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 143 locations, 4 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 4.4s, OverallIterations: 10, TraceHistogramMax: 1, PathProgramHistogramMax: 10, EmptinessCheckTime: 0.0s, AutomataDifference: 2.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 480 SdHoareTripleChecker+Valid, 1.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 480 mSDsluCounter, 506 SdHoareTripleChecker+Invalid, 0.8s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 781 mSDsCounter, 169 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1754 IncrementalHoareTripleChecker+Invalid, 1923 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 169 mSolverCounterUnsat, 169 mSDtfsCounter, 1754 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 121 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 100 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 133 ImplicationChecksByTransitivity, 0.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=577occurred in iteration=5, InterpolantAutomatonStates: 93, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 1.2s InterpolantComputationTime, 1010 NumberOfCodeBlocks, 1010 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 1000 ConstructedInterpolants, 0 QuantifiedInterpolants, 3646 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 10 InterpolantComputations, 10 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-01-19 07:46:52,179 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...