/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-SemanticLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-deagle/circular_buffer_ok.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.repeated-lipton-8d0d62b [2022-12-05 22:23:48,810 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-05 22:23:48,812 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-05 22:23:48,844 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-05 22:23:48,845 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-05 22:23:48,847 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-05 22:23:48,849 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-05 22:23:48,852 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-05 22:23:48,856 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-05 22:23:48,861 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-05 22:23:48,862 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-05 22:23:48,863 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-05 22:23:48,863 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-05 22:23:48,865 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-05 22:23:48,866 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-05 22:23:48,868 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-05 22:23:48,869 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-05 22:23:48,869 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-05 22:23:48,871 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-05 22:23:48,874 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-05 22:23:48,875 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-05 22:23:48,876 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-05 22:23:48,877 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-05 22:23:48,877 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-05 22:23:48,883 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-05 22:23:48,883 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-05 22:23:48,883 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-05 22:23:48,884 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-05 22:23:48,884 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-05 22:23:48,885 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-05 22:23:48,885 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-05 22:23:48,886 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-05 22:23:48,887 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-05 22:23:48,888 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-05 22:23:48,888 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-05 22:23:48,889 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-05 22:23:48,889 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-05 22:23:48,889 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-05 22:23:48,889 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-05 22:23:48,890 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-05 22:23:48,890 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-05 22:23:48,891 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-SemanticLbe.epf [2022-12-05 22:23:48,910 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-05 22:23:48,910 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-05 22:23:48,911 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-05 22:23:48,912 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-05 22:23:48,912 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-05 22:23:48,913 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-05 22:23:48,913 INFO L138 SettingsManager]: * Use SBE=true [2022-12-05 22:23:48,913 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-05 22:23:48,913 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-05 22:23:48,913 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-05 22:23:48,914 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-05 22:23:48,914 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-05 22:23:48,914 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-05 22:23:48,914 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-05 22:23:48,914 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-05 22:23:48,914 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-05 22:23:48,914 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-05 22:23:48,914 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-05 22:23:48,914 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-05 22:23:48,914 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-05 22:23:48,914 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-05 22:23:48,915 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-12-05 22:23:48,915 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-05 22:23:48,915 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-05 22:23:48,915 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-05 22:23:48,915 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-05 22:23:48,915 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-05 22:23:48,915 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-05 22:23:48,915 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-05 22:23:48,915 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-05 22:23:48,915 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-12-05 22:23:49,174 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-05 22:23:49,201 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-05 22:23:49,202 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-05 22:23:49,203 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-05 22:23:49,203 INFO L275 PluginConnector]: CDTParser initialized [2022-12-05 22:23:49,204 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-deagle/circular_buffer_ok.i [2022-12-05 22:23:50,063 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-05 22:23:50,317 INFO L351 CDTParser]: Found 1 translation units. [2022-12-05 22:23:50,317 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-deagle/circular_buffer_ok.i [2022-12-05 22:23:50,329 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e4e00ddaa/b5fe055d60e0432b847af98b52ea6d5d/FLAGef6d003e2 [2022-12-05 22:23:50,345 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e4e00ddaa/b5fe055d60e0432b847af98b52ea6d5d [2022-12-05 22:23:50,348 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-05 22:23:50,349 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-12-05 22:23:50,351 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-05 22:23:50,351 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-05 22:23:50,353 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-05 22:23:50,353 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.12 10:23:50" (1/1) ... [2022-12-05 22:23:50,355 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7f9d64e8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 10:23:50, skipping insertion in model container [2022-12-05 22:23:50,355 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.12 10:23:50" (1/1) ... [2022-12-05 22:23:50,359 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-05 22:23:50,383 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-05 22:23:50,612 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-deagle/circular_buffer_ok.i[30451,30464] [2022-12-05 22:23:50,617 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-deagle/circular_buffer_ok.i[30681,30694] [2022-12-05 22:23:50,620 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-deagle/circular_buffer_ok.i[30979,30992] [2022-12-05 22:23:50,625 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-05 22:23:50,632 INFO L203 MainTranslator]: Completed pre-run [2022-12-05 22:23:50,654 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-deagle/circular_buffer_ok.i[30451,30464] [2022-12-05 22:23:50,655 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-deagle/circular_buffer_ok.i[30681,30694] [2022-12-05 22:23:50,656 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-deagle/circular_buffer_ok.i[30979,30992] [2022-12-05 22:23:50,659 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-05 22:23:50,685 INFO L208 MainTranslator]: Completed translation [2022-12-05 22:23:50,685 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 10:23:50 WrapperNode [2022-12-05 22:23:50,685 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-05 22:23:50,686 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-05 22:23:50,686 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-05 22:23:50,686 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-05 22:23:50,691 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 10:23:50" (1/1) ... [2022-12-05 22:23:50,706 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 10:23:50" (1/1) ... [2022-12-05 22:23:50,734 INFO L138 Inliner]: procedures = 168, calls = 36, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 142 [2022-12-05 22:23:50,734 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-05 22:23:50,735 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-05 22:23:50,735 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-05 22:23:50,735 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-05 22:23:50,753 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 10:23:50" (1/1) ... [2022-12-05 22:23:50,754 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 10:23:50" (1/1) ... [2022-12-05 22:23:50,756 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 10:23:50" (1/1) ... [2022-12-05 22:23:50,756 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 10:23:50" (1/1) ... [2022-12-05 22:23:50,760 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 10:23:50" (1/1) ... [2022-12-05 22:23:50,762 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 10:23:50" (1/1) ... [2022-12-05 22:23:50,764 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 10:23:50" (1/1) ... [2022-12-05 22:23:50,764 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 10:23:50" (1/1) ... [2022-12-05 22:23:50,766 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-05 22:23:50,775 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-05 22:23:50,775 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-05 22:23:50,775 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-05 22:23:50,776 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 10:23:50" (1/1) ... [2022-12-05 22:23:50,782 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-05 22:23:50,790 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-05 22:23:50,802 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) [2022-12-05 22:23:50,811 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 [2022-12-05 22:23:50,833 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-05 22:23:50,833 INFO L130 BoogieDeclarations]: Found specification of procedure t1 [2022-12-05 22:23:50,833 INFO L138 BoogieDeclarations]: Found implementation of procedure t1 [2022-12-05 22:23:50,834 INFO L130 BoogieDeclarations]: Found specification of procedure t2 [2022-12-05 22:23:50,834 INFO L138 BoogieDeclarations]: Found implementation of procedure t2 [2022-12-05 22:23:50,834 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-05 22:23:50,834 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-12-05 22:23:50,834 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-05 22:23:50,834 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-05 22:23:50,834 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-05 22:23:50,834 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-12-05 22:23:50,834 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-05 22:23:50,834 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-05 22:23:50,834 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-05 22:23:50,835 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2022-12-05 22:23:51,005 INFO L236 CfgBuilder]: Building ICFG [2022-12-05 22:23:51,006 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-05 22:23:51,247 INFO L277 CfgBuilder]: Performing block encoding [2022-12-05 22:23:51,252 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-05 22:23:51,253 INFO L302 CfgBuilder]: Removed 2 assume(true) statements. [2022-12-05 22:23:51,254 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.12 10:23:51 BoogieIcfgContainer [2022-12-05 22:23:51,254 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-05 22:23:51,256 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-05 22:23:51,256 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-05 22:23:51,258 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-05 22:23:51,258 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 05.12 10:23:50" (1/3) ... [2022-12-05 22:23:51,258 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@333ee864 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.12 10:23:51, skipping insertion in model container [2022-12-05 22:23:51,259 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 10:23:50" (2/3) ... [2022-12-05 22:23:51,259 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@333ee864 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.12 10:23:51, skipping insertion in model container [2022-12-05 22:23:51,259 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.12 10:23:51" (3/3) ... [2022-12-05 22:23:51,260 INFO L112 eAbstractionObserver]: Analyzing ICFG circular_buffer_ok.i [2022-12-05 22:23:51,273 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-05 22:23:51,274 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2022-12-05 22:23:51,274 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-05 22:23:51,330 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-12-05 22:23:51,353 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 144 places, 148 transitions, 312 flow [2022-12-05 22:23:51,399 INFO L130 PetriNetUnfolder]: 11/146 cut-off events. [2022-12-05 22:23:51,400 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-12-05 22:23:51,405 INFO L83 FinitePrefix]: Finished finitePrefix Result has 155 conditions, 146 events. 11/146 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 281 event pairs, 0 based on Foata normal form. 0/132 useless extension candidates. Maximal degree in co-relation 94. Up to 2 conditions per place. [2022-12-05 22:23:51,406 INFO L82 GeneralOperation]: Start removeDead. Operand has 144 places, 148 transitions, 312 flow [2022-12-05 22:23:51,412 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 133 places, 137 transitions, 283 flow [2022-12-05 22:23:51,414 INFO L195 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-05 22:23:51,445 INFO L167 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 133 places, 137 transitions, 283 flow [2022-12-05 22:23:51,448 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 133 places, 137 transitions, 283 flow [2022-12-05 22:23:51,468 INFO L130 PetriNetUnfolder]: 11/137 cut-off events. [2022-12-05 22:23:51,468 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-12-05 22:23:51,469 INFO L83 FinitePrefix]: Finished finitePrefix Result has 145 conditions, 137 events. 11/137 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 266 event pairs, 0 based on Foata normal form. 0/123 useless extension candidates. Maximal degree in co-relation 94. Up to 2 conditions per place. [2022-12-05 22:23:51,473 INFO L184 LiptonReduction]: Starting Lipton reduction on Petri net that has 133 places, 137 transitions, 283 flow [2022-12-05 22:23:51,473 INFO L188 LiptonReduction]: Number of co-enabled transitions 4498 [2022-12-05 22:23:51,704 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-05 22:23:51,706 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2022-12-05 22:23:51,708 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-05 22:23:51,709 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2022-12-05 22:23:51,901 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-05 22:23:51,902 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2022-12-05 22:23:51,904 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-05 22:23:51,905 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2022-12-05 22:23:52,535 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-05 22:23:52,536 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2022-12-05 22:23:52,538 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-05 22:23:52,538 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2022-12-05 22:23:52,541 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-05 22:23:52,541 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2022-12-05 22:23:52,543 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-05 22:23:52,543 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2022-12-05 22:23:54,905 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-05 22:23:54,908 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2022-12-05 22:23:54,910 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-05 22:23:54,911 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2022-12-05 22:23:55,000 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-05 22:23:55,001 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2022-12-05 22:23:55,003 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-05 22:23:55,004 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2022-12-05 22:23:55,008 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-05 22:23:55,009 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2022-12-05 22:23:55,012 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-05 22:23:55,012 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2022-12-05 22:23:58,778 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-05 22:23:58,779 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2022-12-05 22:23:58,780 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-05 22:23:58,781 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2022-12-05 22:23:59,608 INFO L203 LiptonReduction]: Total number of compositions: 113 [2022-12-05 22:23:59,629 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-05 22:23:59,634 INFO L357 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, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@42d525e5, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, Conditionality=CONDITIONAL_DISJUNCTIVE, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-05 22:23:59,634 INFO L358 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2022-12-05 22:23:59,638 INFO L130 PetriNetUnfolder]: 1/10 cut-off events. [2022-12-05 22:23:59,638 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-05 22:23:59,638 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-05 22:23:59,639 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2022-12-05 22:23:59,639 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting t1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-12-05 22:23:59,642 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-05 22:23:59,642 INFO L85 PathProgramCache]: Analyzing trace with hash 18033543, now seen corresponding path program 1 times [2022-12-05 22:23:59,648 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-05 22:23:59,648 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1642843584] [2022-12-05 22:23:59,648 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 22:23:59,649 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-05 22:23:59,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-05 22:23:59,816 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-05 22:23:59,817 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-05 22:23:59,817 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1642843584] [2022-12-05 22:23:59,817 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1642843584] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-05 22:23:59,817 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-05 22:23:59,817 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-05 22:23:59,818 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1157647535] [2022-12-05 22:23:59,819 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-05 22:23:59,824 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-12-05 22:23:59,824 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-05 22:23:59,853 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-12-05 22:23:59,853 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-05 22:23:59,854 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 7 out of 42 [2022-12-05 22:23:59,855 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 40 places, 42 transitions, 93 flow. Second operand has 2 states, 2 states have (on average 9.0) internal successors, (18), 2 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-05 22:23:59,855 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-05 22:23:59,855 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 7 of 42 [2022-12-05 22:23:59,856 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-05 22:23:59,968 INFO L130 PetriNetUnfolder]: 396/651 cut-off events. [2022-12-05 22:23:59,968 INFO L131 PetriNetUnfolder]: For 33/33 co-relation queries the response was YES. [2022-12-05 22:23:59,970 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1275 conditions, 651 events. 396/651 cut-off events. For 33/33 co-relation queries the response was YES. Maximal size of possible extension queue 52. Compared 2617 event pairs, 267 based on Foata normal form. 0/443 useless extension candidates. Maximal degree in co-relation 1165. Up to 591 conditions per place. [2022-12-05 22:23:59,973 INFO L137 encePairwiseOnDemand]: 36/42 looper letters, 29 selfloop transitions, 0 changer transitions 0/36 dead transitions. [2022-12-05 22:23:59,973 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 37 places, 36 transitions, 139 flow [2022-12-05 22:23:59,974 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-05 22:23:59,976 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2022-12-05 22:23:59,980 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 49 transitions. [2022-12-05 22:23:59,981 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.5833333333333334 [2022-12-05 22:23:59,982 INFO L175 Difference]: Start difference. First operand has 40 places, 42 transitions, 93 flow. Second operand 2 states and 49 transitions. [2022-12-05 22:23:59,983 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 37 places, 36 transitions, 139 flow [2022-12-05 22:23:59,985 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 34 places, 36 transitions, 134 flow, removed 0 selfloop flow, removed 3 redundant places. [2022-12-05 22:23:59,986 INFO L231 Difference]: Finished difference. Result has 34 places, 36 transitions, 76 flow [2022-12-05 22:23:59,987 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=42, PETRI_DIFFERENCE_MINUEND_FLOW=76, PETRI_DIFFERENCE_MINUEND_PLACES=33, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=36, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=36, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=76, PETRI_PLACES=34, PETRI_TRANSITIONS=36} [2022-12-05 22:23:59,989 INFO L294 CegarLoopForPetriNet]: 40 programPoint places, -6 predicate places. [2022-12-05 22:23:59,990 INFO L495 AbstractCegarLoop]: Abstraction has has 34 places, 36 transitions, 76 flow [2022-12-05 22:23:59,990 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 9.0) internal successors, (18), 2 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-05 22:23:59,990 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-05 22:23:59,990 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2022-12-05 22:23:59,990 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-05 22:23:59,990 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting t1Err1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-12-05 22:23:59,991 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-05 22:23:59,991 INFO L85 PathProgramCache]: Analyzing trace with hash 150281689, now seen corresponding path program 1 times [2022-12-05 22:23:59,991 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-05 22:23:59,991 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [6051929] [2022-12-05 22:23:59,991 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 22:23:59,991 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-05 22:24:00,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-05 22:24:00,210 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-05 22:24:00,211 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-05 22:24:00,211 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [6051929] [2022-12-05 22:24:00,211 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [6051929] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-05 22:24:00,211 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-05 22:24:00,211 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-05 22:24:00,211 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1242826087] [2022-12-05 22:24:00,212 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-05 22:24:00,212 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-05 22:24:00,212 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-05 22:24:00,213 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-05 22:24:00,213 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-05 22:24:00,213 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 7 out of 42 [2022-12-05 22:24:00,213 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 34 places, 36 transitions, 76 flow. Second operand has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-05 22:24:00,214 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-05 22:24:00,214 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 7 of 42 [2022-12-05 22:24:00,214 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-05 22:24:00,328 INFO L130 PetriNetUnfolder]: 551/966 cut-off events. [2022-12-05 22:24:00,329 INFO L131 PetriNetUnfolder]: For 7/7 co-relation queries the response was YES. [2022-12-05 22:24:00,330 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1849 conditions, 966 events. 551/966 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 50. Compared 4236 event pairs, 173 based on Foata normal form. 0/682 useless extension candidates. Maximal degree in co-relation 1846. Up to 522 conditions per place. [2022-12-05 22:24:00,334 INFO L137 encePairwiseOnDemand]: 38/42 looper letters, 47 selfloop transitions, 2 changer transitions 0/56 dead transitions. [2022-12-05 22:24:00,334 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 36 places, 56 transitions, 217 flow [2022-12-05 22:24:00,334 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-05 22:24:00,334 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-05 22:24:00,335 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 72 transitions. [2022-12-05 22:24:00,335 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.5714285714285714 [2022-12-05 22:24:00,335 INFO L175 Difference]: Start difference. First operand has 34 places, 36 transitions, 76 flow. Second operand 3 states and 72 transitions. [2022-12-05 22:24:00,335 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 36 places, 56 transitions, 217 flow [2022-12-05 22:24:00,336 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 36 places, 56 transitions, 217 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-12-05 22:24:00,365 INFO L231 Difference]: Finished difference. Result has 37 places, 37 transitions, 90 flow [2022-12-05 22:24:00,365 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=42, PETRI_DIFFERENCE_MINUEND_FLOW=76, PETRI_DIFFERENCE_MINUEND_PLACES=34, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=36, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=34, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=90, PETRI_PLACES=37, PETRI_TRANSITIONS=37} [2022-12-05 22:24:00,365 INFO L294 CegarLoopForPetriNet]: 40 programPoint places, -3 predicate places. [2022-12-05 22:24:00,365 INFO L495 AbstractCegarLoop]: Abstraction has has 37 places, 37 transitions, 90 flow [2022-12-05 22:24:00,366 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-05 22:24:00,366 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-05 22:24:00,366 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-12-05 22:24:00,366 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-05 22:24:00,366 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting t1Err1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-12-05 22:24:00,366 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-05 22:24:00,366 INFO L85 PathProgramCache]: Analyzing trace with hash 363753715, now seen corresponding path program 1 times [2022-12-05 22:24:00,367 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-05 22:24:00,367 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [355433866] [2022-12-05 22:24:00,367 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 22:24:00,367 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-05 22:24:00,378 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-12-05 22:24:00,379 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2122315154] [2022-12-05 22:24:00,379 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 22:24:00,379 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-05 22:24:00,379 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-05 22:24:00,382 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-05 22:24:00,399 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-12-05 22:24:00,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-05 22:24:00,466 INFO L263 TraceCheckSpWp]: Trace formula consists of 166 conjuncts, 7 conjunts are in the unsatisfiable core [2022-12-05 22:24:00,469 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-05 22:24:00,481 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-05 22:24:00,481 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-05 22:24:00,481 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-05 22:24:00,481 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [355433866] [2022-12-05 22:24:00,482 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-12-05 22:24:00,482 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2122315154] [2022-12-05 22:24:00,482 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2122315154] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-05 22:24:00,482 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-05 22:24:00,482 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-05 22:24:00,482 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [346492636] [2022-12-05 22:24:00,482 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-05 22:24:00,482 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-05 22:24:00,483 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-05 22:24:00,483 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-05 22:24:00,483 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-05 22:24:00,483 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 5 out of 42 [2022-12-05 22:24:00,483 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 37 places, 37 transitions, 90 flow. Second operand has 4 states, 4 states have (on average 6.75) internal successors, (27), 4 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-05 22:24:00,483 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-05 22:24:00,483 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 5 of 42 [2022-12-05 22:24:00,483 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-05 22:24:00,683 INFO L130 PetriNetUnfolder]: 766/1284 cut-off events. [2022-12-05 22:24:00,683 INFO L131 PetriNetUnfolder]: For 43/43 co-relation queries the response was YES. [2022-12-05 22:24:00,685 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2624 conditions, 1284 events. 766/1284 cut-off events. For 43/43 co-relation queries the response was YES. Maximal size of possible extension queue 55. Compared 5821 event pairs, 319 based on Foata normal form. 0/896 useless extension candidates. Maximal degree in co-relation 2619. Up to 689 conditions per place. [2022-12-05 22:24:00,689 INFO L137 encePairwiseOnDemand]: 36/42 looper letters, 59 selfloop transitions, 6 changer transitions 0/70 dead transitions. [2022-12-05 22:24:00,689 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 40 places, 70 transitions, 294 flow [2022-12-05 22:24:00,690 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-05 22:24:00,690 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-12-05 22:24:00,691 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 85 transitions. [2022-12-05 22:24:00,692 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.5059523809523809 [2022-12-05 22:24:00,692 INFO L175 Difference]: Start difference. First operand has 37 places, 37 transitions, 90 flow. Second operand 4 states and 85 transitions. [2022-12-05 22:24:00,692 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 40 places, 70 transitions, 294 flow [2022-12-05 22:24:00,693 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 39 places, 70 transitions, 292 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-12-05 22:24:00,694 INFO L231 Difference]: Finished difference. Result has 41 places, 39 transitions, 119 flow [2022-12-05 22:24:00,694 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=42, PETRI_DIFFERENCE_MINUEND_FLOW=88, PETRI_DIFFERENCE_MINUEND_PLACES=36, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=37, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=31, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=119, PETRI_PLACES=41, PETRI_TRANSITIONS=39} [2022-12-05 22:24:00,696 INFO L294 CegarLoopForPetriNet]: 40 programPoint places, 1 predicate places. [2022-12-05 22:24:00,697 INFO L495 AbstractCegarLoop]: Abstraction has has 41 places, 39 transitions, 119 flow [2022-12-05 22:24:00,697 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.75) internal successors, (27), 4 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-05 22:24:00,698 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-05 22:24:00,698 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-12-05 22:24:00,713 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2022-12-05 22:24:00,903 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-05 22:24:00,903 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting t2Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-12-05 22:24:00,904 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-05 22:24:00,904 INFO L85 PathProgramCache]: Analyzing trace with hash -1695831485, now seen corresponding path program 1 times [2022-12-05 22:24:00,904 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-05 22:24:00,904 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [703913419] [2022-12-05 22:24:00,904 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 22:24:00,904 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-05 22:24:00,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-05 22:24:00,946 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-05 22:24:00,947 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-05 22:24:00,947 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [703913419] [2022-12-05 22:24:00,947 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [703913419] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-05 22:24:00,947 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-05 22:24:00,947 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-05 22:24:00,947 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2020273294] [2022-12-05 22:24:00,947 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-05 22:24:00,947 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-05 22:24:00,948 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-05 22:24:00,948 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-05 22:24:00,948 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-05 22:24:00,948 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 5 out of 42 [2022-12-05 22:24:00,948 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 41 places, 39 transitions, 119 flow. Second operand has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-05 22:24:00,948 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-05 22:24:00,948 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 5 of 42 [2022-12-05 22:24:00,948 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-05 22:24:01,087 INFO L130 PetriNetUnfolder]: 791/1353 cut-off events. [2022-12-05 22:24:01,088 INFO L131 PetriNetUnfolder]: For 542/542 co-relation queries the response was YES. [2022-12-05 22:24:01,089 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3172 conditions, 1353 events. 791/1353 cut-off events. For 542/542 co-relation queries the response was YES. Maximal size of possible extension queue 69. Compared 5770 event pairs, 307 based on Foata normal form. 58/1135 useless extension candidates. Maximal degree in co-relation 3165. Up to 741 conditions per place. [2022-12-05 22:24:01,093 INFO L137 encePairwiseOnDemand]: 36/42 looper letters, 50 selfloop transitions, 3 changer transitions 3/61 dead transitions. [2022-12-05 22:24:01,094 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 43 places, 61 transitions, 305 flow [2022-12-05 22:24:01,094 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-05 22:24:01,094 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-05 22:24:01,095 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 69 transitions. [2022-12-05 22:24:01,095 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.5476190476190477 [2022-12-05 22:24:01,095 INFO L175 Difference]: Start difference. First operand has 41 places, 39 transitions, 119 flow. Second operand 3 states and 69 transitions. [2022-12-05 22:24:01,095 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 43 places, 61 transitions, 305 flow [2022-12-05 22:24:01,096 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 42 places, 61 transitions, 299 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-12-05 22:24:01,097 INFO L231 Difference]: Finished difference. Result has 43 places, 40 transitions, 135 flow [2022-12-05 22:24:01,097 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=42, PETRI_DIFFERENCE_MINUEND_FLOW=116, PETRI_DIFFERENCE_MINUEND_PLACES=40, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=39, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=36, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=135, PETRI_PLACES=43, PETRI_TRANSITIONS=40} [2022-12-05 22:24:01,098 INFO L294 CegarLoopForPetriNet]: 40 programPoint places, 3 predicate places. [2022-12-05 22:24:01,098 INFO L495 AbstractCegarLoop]: Abstraction has has 43 places, 40 transitions, 135 flow [2022-12-05 22:24:01,098 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-05 22:24:01,098 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-05 22:24:01,098 INFO L213 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-05 22:24:01,098 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-05 22:24:01,098 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting t1Err1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-12-05 22:24:01,099 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-05 22:24:01,099 INFO L85 PathProgramCache]: Analyzing trace with hash -1271987838, now seen corresponding path program 1 times [2022-12-05 22:24:01,099 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-05 22:24:01,099 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [266526664] [2022-12-05 22:24:01,099 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 22:24:01,099 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-05 22:24:01,108 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-12-05 22:24:01,108 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [205876812] [2022-12-05 22:24:01,109 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 22:24:01,109 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-05 22:24:01,109 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-05 22:24:01,110 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-05 22:24:01,112 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-12-05 22:24:01,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-05 22:24:01,179 INFO L263 TraceCheckSpWp]: Trace formula consists of 202 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-05 22:24:01,180 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-05 22:24:01,206 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-05 22:24:01,206 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-05 22:24:01,206 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-05 22:24:01,206 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [266526664] [2022-12-05 22:24:01,206 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-12-05 22:24:01,206 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [205876812] [2022-12-05 22:24:01,206 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [205876812] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-05 22:24:01,207 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-05 22:24:01,207 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-05 22:24:01,207 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [665317286] [2022-12-05 22:24:01,207 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-05 22:24:01,207 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-05 22:24:01,207 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-05 22:24:01,207 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-05 22:24:01,208 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-12-05 22:24:01,208 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 7 out of 42 [2022-12-05 22:24:01,208 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 43 places, 40 transitions, 135 flow. Second operand has 4 states, 4 states have (on average 9.75) internal successors, (39), 4 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-05 22:24:01,208 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-05 22:24:01,208 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 7 of 42 [2022-12-05 22:24:01,208 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-05 22:24:01,303 INFO L130 PetriNetUnfolder]: 567/1043 cut-off events. [2022-12-05 22:24:01,303 INFO L131 PetriNetUnfolder]: For 414/414 co-relation queries the response was YES. [2022-12-05 22:24:01,305 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2390 conditions, 1043 events. 567/1043 cut-off events. For 414/414 co-relation queries the response was YES. Maximal size of possible extension queue 47. Compared 4592 event pairs, 411 based on Foata normal form. 30/839 useless extension candidates. Maximal degree in co-relation 2382. Up to 892 conditions per place. [2022-12-05 22:24:01,308 INFO L137 encePairwiseOnDemand]: 40/42 looper letters, 27 selfloop transitions, 1 changer transitions 1/37 dead transitions. [2022-12-05 22:24:01,308 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 44 places, 37 transitions, 177 flow [2022-12-05 22:24:01,308 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-05 22:24:01,308 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-05 22:24:01,309 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 49 transitions. [2022-12-05 22:24:01,309 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.3888888888888889 [2022-12-05 22:24:01,309 INFO L175 Difference]: Start difference. First operand has 43 places, 40 transitions, 135 flow. Second operand 3 states and 49 transitions. [2022-12-05 22:24:01,309 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 44 places, 37 transitions, 177 flow [2022-12-05 22:24:01,310 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 41 places, 37 transitions, 166 flow, removed 1 selfloop flow, removed 3 redundant places. [2022-12-05 22:24:01,311 INFO L231 Difference]: Finished difference. Result has 41 places, 36 transitions, 106 flow [2022-12-05 22:24:01,311 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=42, PETRI_DIFFERENCE_MINUEND_FLOW=108, PETRI_DIFFERENCE_MINUEND_PLACES=39, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=37, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=36, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=106, PETRI_PLACES=41, PETRI_TRANSITIONS=36} [2022-12-05 22:24:01,311 INFO L294 CegarLoopForPetriNet]: 40 programPoint places, 1 predicate places. [2022-12-05 22:24:01,311 INFO L495 AbstractCegarLoop]: Abstraction has has 41 places, 36 transitions, 106 flow [2022-12-05 22:24:01,312 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.75) internal successors, (39), 4 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-05 22:24:01,312 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-05 22:24:01,312 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-05 22:24:01,317 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-12-05 22:24:01,517 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-05 22:24:01,517 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting t2Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-12-05 22:24:01,517 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-05 22:24:01,517 INFO L85 PathProgramCache]: Analyzing trace with hash -1958050886, now seen corresponding path program 1 times [2022-12-05 22:24:01,517 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-05 22:24:01,518 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2002583119] [2022-12-05 22:24:01,518 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 22:24:01,518 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-05 22:24:01,536 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-12-05 22:24:01,536 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [692171696] [2022-12-05 22:24:01,537 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 22:24:01,537 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-05 22:24:01,537 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-05 22:24:01,547 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-05 22:24:01,547 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-12-05 22:24:01,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-05 22:24:01,675 INFO L263 TraceCheckSpWp]: Trace formula consists of 219 conjuncts, 6 conjunts are in the unsatisfiable core [2022-12-05 22:24:01,683 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-05 22:24:01,692 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-12-05 22:24:01,700 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-05 22:24:01,700 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-05 22:24:01,700 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-05 22:24:01,700 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2002583119] [2022-12-05 22:24:01,701 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-12-05 22:24:01,701 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [692171696] [2022-12-05 22:24:01,701 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [692171696] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-05 22:24:01,701 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-05 22:24:01,701 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-05 22:24:01,701 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1912397391] [2022-12-05 22:24:01,701 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-05 22:24:01,701 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-05 22:24:01,701 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-05 22:24:01,702 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-05 22:24:01,702 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-05 22:24:01,702 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 7 out of 42 [2022-12-05 22:24:01,702 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 41 places, 36 transitions, 106 flow. Second operand has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-05 22:24:01,702 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-05 22:24:01,702 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 7 of 42 [2022-12-05 22:24:01,703 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-05 22:24:01,782 INFO L130 PetriNetUnfolder]: 284/569 cut-off events. [2022-12-05 22:24:01,783 INFO L131 PetriNetUnfolder]: For 48/48 co-relation queries the response was YES. [2022-12-05 22:24:01,784 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1215 conditions, 569 events. 284/569 cut-off events. For 48/48 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 2388 event pairs, 58 based on Foata normal form. 0/477 useless extension candidates. Maximal degree in co-relation 1208. Up to 340 conditions per place. [2022-12-05 22:24:01,785 INFO L137 encePairwiseOnDemand]: 36/42 looper letters, 28 selfloop transitions, 7 changer transitions 2/45 dead transitions. [2022-12-05 22:24:01,785 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 43 places, 45 transitions, 201 flow [2022-12-05 22:24:01,786 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-05 22:24:01,786 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-05 22:24:01,786 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 60 transitions. [2022-12-05 22:24:01,786 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.47619047619047616 [2022-12-05 22:24:01,786 INFO L175 Difference]: Start difference. First operand has 41 places, 36 transitions, 106 flow. Second operand 3 states and 60 transitions. [2022-12-05 22:24:01,786 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 43 places, 45 transitions, 201 flow [2022-12-05 22:24:01,787 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 42 places, 45 transitions, 200 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-12-05 22:24:01,788 INFO L231 Difference]: Finished difference. Result has 42 places, 35 transitions, 117 flow [2022-12-05 22:24:01,788 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=42, PETRI_DIFFERENCE_MINUEND_FLOW=105, PETRI_DIFFERENCE_MINUEND_PLACES=40, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=36, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=29, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=117, PETRI_PLACES=42, PETRI_TRANSITIONS=35} [2022-12-05 22:24:01,788 INFO L294 CegarLoopForPetriNet]: 40 programPoint places, 2 predicate places. [2022-12-05 22:24:01,789 INFO L495 AbstractCegarLoop]: Abstraction has has 42 places, 35 transitions, 117 flow [2022-12-05 22:24:01,789 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-05 22:24:01,789 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-05 22:24:01,789 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-05 22:24:01,795 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2022-12-05 22:24:01,993 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-05 22:24:01,994 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting t2Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-12-05 22:24:01,994 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-05 22:24:01,995 INFO L85 PathProgramCache]: Analyzing trace with hash -528317127, now seen corresponding path program 1 times [2022-12-05 22:24:01,995 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-05 22:24:01,995 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2073830562] [2022-12-05 22:24:01,995 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 22:24:01,995 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-05 22:24:02,006 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-12-05 22:24:02,007 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2105421958] [2022-12-05 22:24:02,007 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 22:24:02,007 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-05 22:24:02,007 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-05 22:24:02,008 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-05 22:24:02,036 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-12-05 22:24:02,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-05 22:24:02,237 INFO L263 TraceCheckSpWp]: Trace formula consists of 225 conjuncts, 14 conjunts are in the unsatisfiable core [2022-12-05 22:24:02,238 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-05 22:24:02,312 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-05 22:24:02,312 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-05 22:24:02,312 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-05 22:24:02,313 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2073830562] [2022-12-05 22:24:02,313 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-12-05 22:24:02,313 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2105421958] [2022-12-05 22:24:02,313 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2105421958] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-05 22:24:02,313 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-05 22:24:02,313 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-05 22:24:02,313 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1000546381] [2022-12-05 22:24:02,313 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-05 22:24:02,313 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-05 22:24:02,313 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-05 22:24:02,314 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-05 22:24:02,314 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-05 22:24:02,314 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 7 out of 42 [2022-12-05 22:24:02,314 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 42 places, 35 transitions, 117 flow. Second operand has 4 states, 4 states have (on average 10.5) internal successors, (42), 4 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-05 22:24:02,314 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-05 22:24:02,314 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 7 of 42 [2022-12-05 22:24:02,314 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-05 22:24:02,417 INFO L130 PetriNetUnfolder]: 367/745 cut-off events. [2022-12-05 22:24:02,418 INFO L131 PetriNetUnfolder]: For 168/168 co-relation queries the response was YES. [2022-12-05 22:24:02,419 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1774 conditions, 745 events. 367/745 cut-off events. For 168/168 co-relation queries the response was YES. Maximal size of possible extension queue 34. Compared 3134 event pairs, 95 based on Foata normal form. 6/691 useless extension candidates. Maximal degree in co-relation 1767. Up to 322 conditions per place. [2022-12-05 22:24:02,420 INFO L137 encePairwiseOnDemand]: 38/42 looper letters, 51 selfloop transitions, 4 changer transitions 6/69 dead transitions. [2022-12-05 22:24:02,420 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 44 places, 69 transitions, 353 flow [2022-12-05 22:24:02,421 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-05 22:24:02,421 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-12-05 22:24:02,421 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 88 transitions. [2022-12-05 22:24:02,421 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.5238095238095238 [2022-12-05 22:24:02,421 INFO L175 Difference]: Start difference. First operand has 42 places, 35 transitions, 117 flow. Second operand 4 states and 88 transitions. [2022-12-05 22:24:02,422 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 44 places, 69 transitions, 353 flow [2022-12-05 22:24:02,435 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 43 places, 69 transitions, 333 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-12-05 22:24:02,436 INFO L231 Difference]: Finished difference. Result has 44 places, 37 transitions, 139 flow [2022-12-05 22:24:02,436 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=42, PETRI_DIFFERENCE_MINUEND_FLOW=110, PETRI_DIFFERENCE_MINUEND_PLACES=40, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=35, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=31, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=139, PETRI_PLACES=44, PETRI_TRANSITIONS=37} [2022-12-05 22:24:02,437 INFO L294 CegarLoopForPetriNet]: 40 programPoint places, 4 predicate places. [2022-12-05 22:24:02,437 INFO L495 AbstractCegarLoop]: Abstraction has has 44 places, 37 transitions, 139 flow [2022-12-05 22:24:02,437 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.5) internal successors, (42), 4 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-05 22:24:02,437 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-05 22:24:02,437 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-05 22:24:02,445 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-12-05 22:24:02,637 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-05 22:24:02,638 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting t2Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-12-05 22:24:02,638 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-05 22:24:02,638 INFO L85 PathProgramCache]: Analyzing trace with hash 468074274, now seen corresponding path program 1 times [2022-12-05 22:24:02,638 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-05 22:24:02,638 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [207172846] [2022-12-05 22:24:02,638 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 22:24:02,639 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-05 22:24:02,653 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-12-05 22:24:02,653 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1211551800] [2022-12-05 22:24:02,653 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 22:24:02,653 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-05 22:24:02,654 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-05 22:24:02,665 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-05 22:24:02,666 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-12-05 22:24:02,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-05 22:24:02,777 INFO L263 TraceCheckSpWp]: Trace formula consists of 232 conjuncts, 29 conjunts are in the unsatisfiable core [2022-12-05 22:24:02,778 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-05 22:24:02,786 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-05 22:24:02,786 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 12 [2022-12-05 22:24:02,799 INFO L321 Elim1Store]: treesize reduction 16, result has 36.0 percent of original size [2022-12-05 22:24:02,799 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 20 treesize of output 22 [2022-12-05 22:24:02,828 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 15 [2022-12-05 22:24:02,856 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 45 [2022-12-05 22:24:02,951 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 46 [2022-12-05 22:24:02,980 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-05 22:24:02,980 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-05 22:24:02,980 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-05 22:24:02,980 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [207172846] [2022-12-05 22:24:02,980 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-12-05 22:24:02,980 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1211551800] [2022-12-05 22:24:02,980 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1211551800] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-05 22:24:02,980 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-05 22:24:02,980 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-05 22:24:02,981 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [909549291] [2022-12-05 22:24:02,981 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-05 22:24:02,981 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-05 22:24:02,981 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-05 22:24:02,981 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-05 22:24:02,981 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-12-05 22:24:02,981 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 42 [2022-12-05 22:24:02,982 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 44 places, 37 transitions, 139 flow. Second operand has 7 states, 7 states have (on average 8.142857142857142) internal successors, (57), 7 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-05 22:24:02,982 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-05 22:24:02,982 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 42 [2022-12-05 22:24:02,982 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-05 22:24:03,223 INFO L130 PetriNetUnfolder]: 689/1333 cut-off events. [2022-12-05 22:24:03,223 INFO L131 PetriNetUnfolder]: For 360/360 co-relation queries the response was YES. [2022-12-05 22:24:03,225 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3077 conditions, 1333 events. 689/1333 cut-off events. For 360/360 co-relation queries the response was YES. Maximal size of possible extension queue 60. Compared 6562 event pairs, 261 based on Foata normal form. 0/1149 useless extension candidates. Maximal degree in co-relation 3068. Up to 617 conditions per place. [2022-12-05 22:24:03,228 INFO L137 encePairwiseOnDemand]: 34/42 looper letters, 51 selfloop transitions, 7 changer transitions 12/77 dead transitions. [2022-12-05 22:24:03,228 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 48 places, 77 transitions, 398 flow [2022-12-05 22:24:03,228 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-05 22:24:03,229 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-12-05 22:24:03,229 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 97 transitions. [2022-12-05 22:24:03,229 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.46190476190476193 [2022-12-05 22:24:03,229 INFO L175 Difference]: Start difference. First operand has 44 places, 37 transitions, 139 flow. Second operand 5 states and 97 transitions. [2022-12-05 22:24:03,229 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 48 places, 77 transitions, 398 flow [2022-12-05 22:24:03,230 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 46 places, 77 transitions, 385 flow, removed 3 selfloop flow, removed 2 redundant places. [2022-12-05 22:24:03,231 INFO L231 Difference]: Finished difference. Result has 49 places, 42 transitions, 186 flow [2022-12-05 22:24:03,232 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=42, PETRI_DIFFERENCE_MINUEND_FLOW=130, PETRI_DIFFERENCE_MINUEND_PLACES=42, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=37, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=30, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=186, PETRI_PLACES=49, PETRI_TRANSITIONS=42} [2022-12-05 22:24:03,232 INFO L294 CegarLoopForPetriNet]: 40 programPoint places, 9 predicate places. [2022-12-05 22:24:03,232 INFO L495 AbstractCegarLoop]: Abstraction has has 49 places, 42 transitions, 186 flow [2022-12-05 22:24:03,232 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.142857142857142) internal successors, (57), 7 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-05 22:24:03,232 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-05 22:24:03,232 INFO L213 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-05 22:24:03,237 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2022-12-05 22:24:03,437 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-05 22:24:03,438 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting t2Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-12-05 22:24:03,438 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-05 22:24:03,438 INFO L85 PathProgramCache]: Analyzing trace with hash -1466633283, now seen corresponding path program 1 times [2022-12-05 22:24:03,438 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-05 22:24:03,438 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1718409600] [2022-12-05 22:24:03,438 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 22:24:03,439 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-05 22:24:03,452 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-12-05 22:24:03,452 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [9778162] [2022-12-05 22:24:03,453 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 22:24:03,453 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-05 22:24:03,453 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-05 22:24:03,454 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-05 22:24:03,456 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-12-05 22:24:03,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-05 22:24:03,542 INFO L263 TraceCheckSpWp]: Trace formula consists of 247 conjuncts, 2 conjunts are in the unsatisfiable core [2022-12-05 22:24:03,543 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-05 22:24:03,563 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-05 22:24:03,563 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-05 22:24:03,563 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-05 22:24:03,563 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1718409600] [2022-12-05 22:24:03,563 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-12-05 22:24:03,563 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [9778162] [2022-12-05 22:24:03,563 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [9778162] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-05 22:24:03,564 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-05 22:24:03,564 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-05 22:24:03,564 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [568929296] [2022-12-05 22:24:03,564 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-05 22:24:03,564 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-05 22:24:03,564 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-05 22:24:03,564 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-05 22:24:03,564 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-05 22:24:03,565 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 5 out of 42 [2022-12-05 22:24:03,565 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 49 places, 42 transitions, 186 flow. Second operand has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-05 22:24:03,565 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-05 22:24:03,565 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 5 of 42 [2022-12-05 22:24:03,565 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-05 22:24:03,652 INFO L130 PetriNetUnfolder]: 465/927 cut-off events. [2022-12-05 22:24:03,652 INFO L131 PetriNetUnfolder]: For 365/365 co-relation queries the response was YES. [2022-12-05 22:24:03,654 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2296 conditions, 927 events. 465/927 cut-off events. For 365/365 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 3680 event pairs, 159 based on Foata normal form. 28/859 useless extension candidates. Maximal degree in co-relation 2284. Up to 580 conditions per place. [2022-12-05 22:24:03,655 INFO L137 encePairwiseOnDemand]: 38/42 looper letters, 37 selfloop transitions, 2 changer transitions 9/53 dead transitions. [2022-12-05 22:24:03,655 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 51 places, 53 transitions, 308 flow [2022-12-05 22:24:03,656 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-05 22:24:03,656 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-05 22:24:03,656 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 56 transitions. [2022-12-05 22:24:03,657 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.4444444444444444 [2022-12-05 22:24:03,657 INFO L175 Difference]: Start difference. First operand has 49 places, 42 transitions, 186 flow. Second operand 3 states and 56 transitions. [2022-12-05 22:24:03,657 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 51 places, 53 transitions, 308 flow [2022-12-05 22:24:03,658 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 49 places, 53 transitions, 299 flow, removed 2 selfloop flow, removed 2 redundant places. [2022-12-05 22:24:03,678 INFO L231 Difference]: Finished difference. Result has 51 places, 38 transitions, 170 flow [2022-12-05 22:24:03,678 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=42, PETRI_DIFFERENCE_MINUEND_FLOW=167, PETRI_DIFFERENCE_MINUEND_PLACES=47, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=40, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=38, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=170, PETRI_PLACES=51, PETRI_TRANSITIONS=38} [2022-12-05 22:24:03,679 INFO L294 CegarLoopForPetriNet]: 40 programPoint places, 11 predicate places. [2022-12-05 22:24:03,679 INFO L495 AbstractCegarLoop]: Abstraction has has 51 places, 38 transitions, 170 flow [2022-12-05 22:24:03,679 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-05 22:24:03,679 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-05 22:24:03,679 INFO L213 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-05 22:24:03,701 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-12-05 22:24:03,884 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-05 22:24:03,885 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting t2Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-12-05 22:24:03,885 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-05 22:24:03,885 INFO L85 PathProgramCache]: Analyzing trace with hash 1648514324, now seen corresponding path program 1 times [2022-12-05 22:24:03,885 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-05 22:24:03,885 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2109699906] [2022-12-05 22:24:03,885 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 22:24:03,886 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-05 22:24:03,897 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-12-05 22:24:03,897 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [228566791] [2022-12-05 22:24:03,897 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 22:24:03,897 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-05 22:24:03,897 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-05 22:24:03,898 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-05 22:24:03,900 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-12-05 22:24:04,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-05 22:24:04,279 INFO L263 TraceCheckSpWp]: Trace formula consists of 304 conjuncts, 21 conjunts are in the unsatisfiable core [2022-12-05 22:24:04,280 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-05 22:24:04,441 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 1 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-05 22:24:04,441 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-05 22:24:05,844 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 1 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-05 22:24:05,844 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-05 22:24:05,844 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2109699906] [2022-12-05 22:24:05,844 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-12-05 22:24:05,845 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [228566791] [2022-12-05 22:24:05,845 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [228566791] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-05 22:24:05,845 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-12-05 22:24:05,845 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 9 [2022-12-05 22:24:05,845 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [363930106] [2022-12-05 22:24:05,845 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-12-05 22:24:05,845 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-12-05 22:24:05,845 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-05 22:24:05,846 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-12-05 22:24:05,846 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2022-12-05 22:24:05,846 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 7 out of 42 [2022-12-05 22:24:05,846 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 51 places, 38 transitions, 170 flow. Second operand has 10 states, 10 states have (on average 11.7) internal successors, (117), 10 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-05 22:24:05,846 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-05 22:24:05,846 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 7 of 42 [2022-12-05 22:24:05,846 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-05 22:24:14,806 INFO L130 PetriNetUnfolder]: 379/855 cut-off events. [2022-12-05 22:24:14,806 INFO L131 PetriNetUnfolder]: For 375/375 co-relation queries the response was YES. [2022-12-05 22:24:14,808 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2178 conditions, 855 events. 379/855 cut-off events. For 375/375 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 2624 event pairs, 67 based on Foata normal form. 0/773 useless extension candidates. Maximal degree in co-relation 2165. Up to 149 conditions per place. [2022-12-05 22:24:14,810 INFO L137 encePairwiseOnDemand]: 38/42 looper letters, 102 selfloop transitions, 9 changer transitions 14/132 dead transitions. [2022-12-05 22:24:14,810 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 59 places, 132 transitions, 758 flow [2022-12-05 22:24:14,810 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-12-05 22:24:14,811 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2022-12-05 22:24:14,811 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 193 transitions. [2022-12-05 22:24:14,811 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.4595238095238095 [2022-12-05 22:24:14,811 INFO L175 Difference]: Start difference. First operand has 51 places, 38 transitions, 170 flow. Second operand 10 states and 193 transitions. [2022-12-05 22:24:14,812 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 59 places, 132 transitions, 758 flow [2022-12-05 22:24:14,813 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 57 places, 132 transitions, 754 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-12-05 22:24:14,814 INFO L231 Difference]: Finished difference. Result has 60 places, 44 transitions, 236 flow [2022-12-05 22:24:14,814 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=42, PETRI_DIFFERENCE_MINUEND_FLOW=166, PETRI_DIFFERENCE_MINUEND_PLACES=48, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=38, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=33, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=236, PETRI_PLACES=60, PETRI_TRANSITIONS=44} [2022-12-05 22:24:14,814 INFO L294 CegarLoopForPetriNet]: 40 programPoint places, 20 predicate places. [2022-12-05 22:24:14,815 INFO L495 AbstractCegarLoop]: Abstraction has has 60 places, 44 transitions, 236 flow [2022-12-05 22:24:14,815 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 11.7) internal successors, (117), 10 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-05 22:24:14,815 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-05 22:24:14,815 INFO L213 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-05 22:24:14,821 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-12-05 22:24:15,015 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-05 22:24:15,016 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting t2Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-12-05 22:24:15,016 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-05 22:24:15,016 INFO L85 PathProgramCache]: Analyzing trace with hash -435665401, now seen corresponding path program 1 times [2022-12-05 22:24:15,016 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-05 22:24:15,016 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [550697589] [2022-12-05 22:24:15,016 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 22:24:15,016 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-05 22:24:15,038 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-12-05 22:24:15,038 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1697917537] [2022-12-05 22:24:15,039 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 22:24:15,039 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-05 22:24:15,039 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-05 22:24:15,040 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-05 22:24:15,042 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-12-05 22:24:15,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-05 22:24:15,448 INFO L263 TraceCheckSpWp]: Trace formula consists of 311 conjuncts, 51 conjunts are in the unsatisfiable core [2022-12-05 22:24:15,450 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-05 22:24:15,646 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-12-05 22:24:15,730 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2022-12-05 22:24:15,741 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-05 22:24:15,742 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-05 22:24:15,891 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 37 [2022-12-05 22:24:15,901 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-05 22:24:15,901 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 37 treesize of output 76 [2022-12-05 22:24:15,939 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-05 22:24:15,940 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 122 [2022-12-05 22:24:15,971 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-05 22:24:15,971 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 170 treesize of output 135 [2022-12-05 22:24:23,130 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-05 22:24:23,131 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-05 22:24:23,131 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [550697589] [2022-12-05 22:24:23,131 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-12-05 22:24:23,131 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1697917537] [2022-12-05 22:24:23,131 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1697917537] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-05 22:24:23,131 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-12-05 22:24:23,131 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 20 [2022-12-05 22:24:23,131 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [65288401] [2022-12-05 22:24:23,131 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-12-05 22:24:23,132 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-12-05 22:24:23,132 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-05 22:24:23,132 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-12-05 22:24:23,132 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=74, Invalid=388, Unknown=0, NotChecked=0, Total=462 [2022-12-05 22:24:23,132 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 42 [2022-12-05 22:24:23,133 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 60 places, 44 transitions, 236 flow. Second operand has 22 states, 22 states have (on average 6.545454545454546) internal successors, (144), 22 states have internal predecessors, (144), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-05 22:24:23,133 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-05 22:24:23,133 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 42 [2022-12-05 22:24:23,133 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-05 22:24:53,940 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.01s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-12-05 22:25:08,556 WARN L233 SmtUtils]: Spent 8.14s on a formula simplification. DAG size of input: 79 DAG size of output: 74 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-05 22:25:33,292 INFO L130 PetriNetUnfolder]: 1287/2581 cut-off events. [2022-12-05 22:25:33,293 INFO L131 PetriNetUnfolder]: For 1412/1412 co-relation queries the response was YES. [2022-12-05 22:25:33,296 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6568 conditions, 2581 events. 1287/2581 cut-off events. For 1412/1412 co-relation queries the response was YES. Maximal size of possible extension queue 52. Compared 11024 event pairs, 153 based on Foata normal form. 43/2416 useless extension candidates. Maximal degree in co-relation 6552. Up to 425 conditions per place. [2022-12-05 22:25:33,300 INFO L137 encePairwiseOnDemand]: 25/42 looper letters, 168 selfloop transitions, 91 changer transitions 110/373 dead transitions. [2022-12-05 22:25:33,301 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 113 places, 373 transitions, 2131 flow [2022-12-05 22:25:33,302 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 54 states. [2022-12-05 22:25:33,303 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 54 states. [2022-12-05 22:25:33,305 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 577 transitions. [2022-12-05 22:25:33,306 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.25440917107583777 [2022-12-05 22:25:33,306 INFO L175 Difference]: Start difference. First operand has 60 places, 44 transitions, 236 flow. Second operand 54 states and 577 transitions. [2022-12-05 22:25:33,306 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 113 places, 373 transitions, 2131 flow [2022-12-05 22:25:33,310 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 110 places, 373 transitions, 2076 flow, removed 18 selfloop flow, removed 3 redundant places. [2022-12-05 22:25:33,313 INFO L231 Difference]: Finished difference. Result has 126 places, 121 transitions, 916 flow [2022-12-05 22:25:33,313 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=42, PETRI_DIFFERENCE_MINUEND_FLOW=216, PETRI_DIFFERENCE_MINUEND_PLACES=57, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=44, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=22, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=16, PETRI_DIFFERENCE_SUBTRAHEND_STATES=54, PETRI_FLOW=916, PETRI_PLACES=126, PETRI_TRANSITIONS=121} [2022-12-05 22:25:33,313 INFO L294 CegarLoopForPetriNet]: 40 programPoint places, 86 predicate places. [2022-12-05 22:25:33,313 INFO L495 AbstractCegarLoop]: Abstraction has has 126 places, 121 transitions, 916 flow [2022-12-05 22:25:33,313 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 6.545454545454546) internal successors, (144), 22 states have internal predecessors, (144), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-05 22:25:33,314 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-05 22:25:33,314 INFO L213 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-05 22:25:33,326 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2022-12-05 22:25:33,522 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2022-12-05 22:25:33,522 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting t2Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-12-05 22:25:33,522 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-05 22:25:33,522 INFO L85 PathProgramCache]: Analyzing trace with hash -1609889657, now seen corresponding path program 2 times [2022-12-05 22:25:33,522 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-05 22:25:33,523 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [576556291] [2022-12-05 22:25:33,523 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 22:25:33,523 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-05 22:25:33,537 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-12-05 22:25:33,537 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [50293492] [2022-12-05 22:25:33,537 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-12-05 22:25:33,537 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-05 22:25:33,537 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-05 22:25:33,541 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-05 22:25:33,543 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-12-05 22:25:34,167 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-12-05 22:25:34,167 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-05 22:25:34,172 INFO L263 TraceCheckSpWp]: Trace formula consists of 541 conjuncts, 117 conjunts are in the unsatisfiable core [2022-12-05 22:25:34,184 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-05 22:25:34,195 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-05 22:25:34,196 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 12 [2022-12-05 22:25:34,210 INFO L321 Elim1Store]: treesize reduction 16, result has 36.0 percent of original size [2022-12-05 22:25:34,211 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 20 treesize of output 22 [2022-12-05 22:25:34,280 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 15 [2022-12-05 22:25:34,323 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 45 [2022-12-05 22:25:34,710 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 70 treesize of output 61 [2022-12-05 22:25:35,465 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 83 treesize of output 74 [2022-12-05 22:25:40,123 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 92 treesize of output 83 [2022-12-05 22:25:44,788 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 73 treesize of output 67 [2022-12-05 22:25:50,130 INFO L134 CoverageAnalysis]: Checked inductivity of 124 backedges. 4 proven. 120 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-05 22:25:50,130 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-05 22:26:17,911 WARN L233 SmtUtils]: Spent 10.94s on a formula simplification. DAG size of input: 70 DAG size of output: 54 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-05 22:28:44,861 WARN L233 SmtUtils]: Spent 1.25m on a formula simplification. DAG size of input: 127 DAG size of output: 105 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-05 22:29:41,414 WARN L233 SmtUtils]: Spent 16.39s on a formula simplification that was a NOOP. DAG size: 108 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-05 22:30:17,225 WARN L233 SmtUtils]: Spent 21.81s on a formula simplification that was a NOOP. DAG size: 121 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-05 22:30:54,335 WARN L233 SmtUtils]: Spent 20.37s on a formula simplification that was a NOOP. DAG size: 123 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-05 22:31:53,622 WARN L233 SmtUtils]: Spent 28.17s on a formula simplification that was a NOOP. DAG size: 124 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-05 22:33:09,948 WARN L233 SmtUtils]: Spent 26.14s on a formula simplification that was a NOOP. DAG size: 123 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-05 22:35:35,069 WARN L859 $PredicateComparison]: unable to prove that (let ((.cse0 (select |c_#memory_int| |c_~#buffer~0.base|))) (or (let ((.cse1 (mod c_~first~0 4294967296))) (let ((.cse2 (<= .cse1 2147483647))) (and (or (not (= (select .cse0 (+ |c_~#buffer~0.offset| .cse1)) |c_t1Thread1of1ForFork1_~i~0#1|)) (not .cse2)) (or .cse2 (not (= (select .cse0 (+ |c_~#buffer~0.offset| .cse1 (- 4294967296))) |c_t1Thread1of1ForFork1_~i~0#1|)))))) (let ((.cse98 (mod (+ c_~first~0 1) 4294967296))) (let ((.cse3 (<= .cse98 2147483647)) (.cse5 (mod c_~buffer_size~0 4294967296)) (.cse41 (mod (+ 2 c_~first~0) 4294967296))) (let ((.cse42 (<= .cse41 2147483647)) (.cse12 (+ |c_~#buffer~0.offset| .cse98 (- 4294967296))) (.cse32 (< (mod (+ 3 c_~first~0) 4294967296) .cse5)) (.cse22 (+ |c_~#buffer~0.offset| .cse98)) (.cse10 (+ |c_t1Thread1of1ForFork1_~i~0#1| 1)) (.cse14 (+ 2 |c_t1Thread1of1ForFork1_~i~0#1|)) (.cse13 (+ .cse5 1)) (.cse20 (not .cse3))) (and (or (let ((.cse15 (+ |c_~#buffer~0.offset| .cse41))) (and (or .cse3 (forall ((aux_div_aux_mod_aux_mod_aux_mod_v_~next~0_298_30_41_58_63 Int) (aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_~next~0_298_30_41_58_63_74_85 Int) (aux_div_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_~next~0_298_30_41_58_63_74_85 Int) (aux_div_aux_mod_aux_mod_v_~next~0_298_30_41_58 Int) (v_ArrVal_833 Int) (aux_div_aux_mod_aux_mod_aux_mod_aux_mod_v_~next~0_298_30_41_58_63_74 Int) (aux_div_aux_mod_v_~next~0_298_30_41 Int) (v_ArrVal_831 Int)) (let ((.cse18 (* aux_div_aux_mod_aux_mod_v_~next~0_298_30_41_58 4294967296)) (.cse19 (* aux_div_aux_mod_aux_mod_aux_mod_v_~next~0_298_30_41_58_63 4294967296)) (.cse17 (* aux_div_aux_mod_aux_mod_aux_mod_aux_mod_v_~next~0_298_30_41_58_63_74 4294967296)) (.cse16 (* 4294967296 aux_div_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_~next~0_298_30_41_58_63_74_85))) (let ((.cse7 (+ .cse16 aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_~next~0_298_30_41_58_63_74_85)) (.cse9 (+ .cse16 aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_~next~0_298_30_41_58_63_74_85 .cse17)) (.cse8 (+ .cse16 aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_~next~0_298_30_41_58_63_74_85 .cse17 .cse18 .cse19)) (.cse4 (+ .cse16 aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_~next~0_298_30_41_58_63_74_85 .cse17 .cse19)) (.cse6 (+ (* aux_div_aux_mod_v_~next~0_298_30_41 4294967296) .cse16 aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_~next~0_298_30_41_58_63_74_85 .cse17 .cse18 .cse19)) (.cse11 (store .cse0 (+ |c_~#buffer~0.offset| (mod (+ aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_~next~0_298_30_41_58_63_74_85 4294967295) 4294967296)) v_ArrVal_831))) (or (>= aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_~next~0_298_30_41_58_63_74_85 4294967296) (<= (mod (mod .cse4 .cse5) 4294967296) 0) (< .cse6 1) (<= 4294967296 .cse7) (<= 4294967297 .cse8) (<= 4294967296 .cse9) (> 0 aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_~next~0_298_30_41_58_63_74_85) (< .cse4 0) (< .cse7 0) (< .cse9 0) (< 0 (mod (mod (mod (+ (mod (mod (+ (mod aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_~next~0_298_30_41_58_63_74_85 .cse5) 1) 4294967296) .cse5) 1) 4294967296) .cse5) 4294967296)) (<= .cse8 1) (<= 4294967296 .cse4) (not (= .cse10 (select .cse11 .cse12))) (<= .cse13 .cse6) (not (= .cse14 (select (store .cse11 (+ |c_~#buffer~0.offset| (mod (mod (mod aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_~next~0_298_30_41_58_63_74_85 4294967296) .cse5) 4294967296)) v_ArrVal_833) .cse15)))))))) (or .cse20 (forall ((aux_div_aux_mod_aux_mod_aux_mod_v_~next~0_298_30_41_58_63 Int) (aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_~next~0_298_30_41_58_63_74_85 Int) (aux_div_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_~next~0_298_30_41_58_63_74_85 Int) (aux_div_aux_mod_aux_mod_v_~next~0_298_30_41_58 Int) (v_ArrVal_833 Int) (aux_div_aux_mod_aux_mod_aux_mod_aux_mod_v_~next~0_298_30_41_58_63_74 Int) (aux_div_aux_mod_v_~next~0_298_30_41 Int) (v_ArrVal_831 Int)) (let ((.cse30 (* aux_div_aux_mod_aux_mod_v_~next~0_298_30_41_58 4294967296)) (.cse31 (* aux_div_aux_mod_aux_mod_aux_mod_v_~next~0_298_30_41_58_63 4294967296)) (.cse29 (* aux_div_aux_mod_aux_mod_aux_mod_aux_mod_v_~next~0_298_30_41_58_63_74 4294967296)) (.cse28 (* 4294967296 aux_div_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_~next~0_298_30_41_58_63_74_85))) (let ((.cse25 (+ .cse28 aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_~next~0_298_30_41_58_63_74_85)) (.cse27 (+ .cse28 aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_~next~0_298_30_41_58_63_74_85 .cse29)) (.cse26 (+ .cse28 aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_~next~0_298_30_41_58_63_74_85 .cse29 .cse30 .cse31)) (.cse23 (+ .cse28 aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_~next~0_298_30_41_58_63_74_85 .cse29 .cse31)) (.cse24 (+ (* aux_div_aux_mod_v_~next~0_298_30_41 4294967296) .cse28 aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_~next~0_298_30_41_58_63_74_85 .cse29 .cse30 .cse31)) (.cse21 (store .cse0 (+ |c_~#buffer~0.offset| (mod (+ aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_~next~0_298_30_41_58_63_74_85 4294967295) 4294967296)) v_ArrVal_831))) (or (>= aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_~next~0_298_30_41_58_63_74_85 4294967296) (not (= (select .cse21 .cse22) .cse10)) (<= (mod (mod .cse23 .cse5) 4294967296) 0) (< .cse24 1) (<= 4294967296 .cse25) (<= 4294967297 .cse26) (<= 4294967296 .cse27) (> 0 aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_~next~0_298_30_41_58_63_74_85) (< .cse23 0) (< .cse25 0) (< .cse27 0) (< 0 (mod (mod (mod (+ (mod (mod (+ (mod aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_~next~0_298_30_41_58_63_74_85 .cse5) 1) 4294967296) .cse5) 1) 4294967296) .cse5) 4294967296)) (<= .cse26 1) (<= 4294967296 .cse23) (<= .cse13 .cse24) (not (= .cse14 (select (store .cse21 (+ |c_~#buffer~0.offset| (mod (mod (mod aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_~next~0_298_30_41_58_63_74_85 4294967296) .cse5) 4294967296)) v_ArrVal_833) .cse15)))))))) (or .cse32 .cse20 (forall ((aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_~next~0_298_30_41_58_63_74 Int) (aux_div_aux_mod_aux_mod_aux_mod_v_~next~0_298_30_41_58_63 Int) (aux_div_aux_mod_aux_mod_v_~next~0_298_30_41_58 Int) (v_ArrVal_833 Int) (aux_div_aux_mod_aux_mod_aux_mod_aux_mod_v_~next~0_298_30_41_58_63_74 Int) (aux_div_aux_mod_v_~next~0_298_30_41 Int) (v_ArrVal_831 Int)) (let ((.cse38 (* aux_div_aux_mod_aux_mod_aux_mod_aux_mod_v_~next~0_298_30_41_58_63_74 4294967296)) (.cse40 (* aux_div_aux_mod_aux_mod_v_~next~0_298_30_41_58 4294967296)) (.cse39 (* aux_div_aux_mod_aux_mod_aux_mod_v_~next~0_298_30_41_58_63 4294967296))) (let ((.cse35 (+ (* aux_div_aux_mod_v_~next~0_298_30_41 4294967296) aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_~next~0_298_30_41_58_63_74 .cse38 .cse40 .cse39)) (.cse37 (store .cse0 (+ |c_~#buffer~0.offset| (mod (+ aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_~next~0_298_30_41_58_63_74 4294967295) 4294967296)) v_ArrVal_831)) (.cse36 (+ aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_~next~0_298_30_41_58_63_74 .cse38 .cse40 .cse39)) (.cse34 (+ aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_~next~0_298_30_41_58_63_74 .cse38 .cse39)) (.cse33 (+ aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_~next~0_298_30_41_58_63_74 .cse38))) (or (<= (mod (mod (mod (+ (mod .cse33 .cse5) 1) 4294967296) .cse5) 4294967296) 0) (< .cse34 0) (< .cse35 1) (>= aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_~next~0_298_30_41_58_63_74 4294967296) (> 0 aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_~next~0_298_30_41_58_63_74) (<= .cse13 .cse35) (<= 4294967297 .cse36) (not (= (select .cse37 .cse22) .cse10)) (not (= .cse14 (select (store .cse37 (+ |c_~#buffer~0.offset| (mod (mod (mod aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_~next~0_298_30_41_58_63_74 4294967296) .cse5) 4294967296)) v_ArrVal_833) .cse15))) (<= (mod (mod .cse34 .cse5) 4294967296) 0) (<= .cse36 1) (<= 4294967296 .cse33) (<= 4294967296 .cse34) (< .cse33 0)))))))) (not .cse42)) (or .cse42 (let ((.cse48 (+ |c_~#buffer~0.offset| (- 4294967296) .cse41))) (and (or (and (or (forall ((aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_~next~0_298_30_41_58_63_74 Int) (aux_div_aux_mod_aux_mod_aux_mod_v_~next~0_298_30_41_58_63 Int) (aux_div_aux_mod_aux_mod_v_~next~0_298_30_41_58 Int) (v_ArrVal_833 Int) (aux_div_aux_mod_aux_mod_aux_mod_aux_mod_v_~next~0_298_30_41_58_63_74 Int) (v_ArrVal_831 Int) (aux_div_aux_mod_v_~next~0_298_30_41 Int)) (let ((.cse49 (* aux_div_aux_mod_aux_mod_aux_mod_aux_mod_v_~next~0_298_30_41_58_63_74 4294967296)) (.cse51 (* aux_div_aux_mod_aux_mod_v_~next~0_298_30_41_58 4294967296)) (.cse50 (* aux_div_aux_mod_aux_mod_aux_mod_v_~next~0_298_30_41_58_63 4294967296))) (let ((.cse45 (+ (* aux_div_aux_mod_v_~next~0_298_30_41 4294967296) aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_~next~0_298_30_41_58_63_74 .cse49 .cse51 .cse50)) (.cse47 (store .cse0 (+ |c_~#buffer~0.offset| (mod (+ aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_~next~0_298_30_41_58_63_74 4294967295) 4294967296) (- 4294967296)) v_ArrVal_831)) (.cse46 (+ aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_~next~0_298_30_41_58_63_74 .cse49 .cse51 .cse50)) (.cse44 (+ aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_~next~0_298_30_41_58_63_74 .cse49 .cse50)) (.cse43 (+ aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_~next~0_298_30_41_58_63_74 .cse49))) (or (<= (mod (mod (mod (+ (mod .cse43 .cse5) 1) 4294967296) .cse5) 4294967296) 0) (< .cse44 0) (< .cse45 1) (>= aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_~next~0_298_30_41_58_63_74 4294967296) (> 0 aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_~next~0_298_30_41_58_63_74) (<= .cse13 .cse45) (<= 4294967297 .cse46) (not (= .cse14 (select (store .cse47 (+ |c_~#buffer~0.offset| (mod (mod (mod aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_~next~0_298_30_41_58_63_74 4294967296) .cse5) 4294967296) (- 4294967296)) v_ArrVal_833) .cse48))) (not (= .cse10 (select .cse47 .cse22))) (<= (mod (mod .cse44 .cse5) 4294967296) 0) (<= .cse46 1) (<= 4294967296 .cse43) (<= 4294967296 .cse44) (< .cse43 0))))) .cse32) (forall ((aux_div_aux_mod_aux_mod_aux_mod_v_~next~0_298_30_41_58_63 Int) (aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_~next~0_298_30_41_58_63_74_85 Int) (aux_div_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_~next~0_298_30_41_58_63_74_85 Int) (aux_div_aux_mod_aux_mod_v_~next~0_298_30_41_58 Int) (v_ArrVal_833 Int) (aux_div_aux_mod_aux_mod_aux_mod_aux_mod_v_~next~0_298_30_41_58_63_74 Int) (v_ArrVal_831 Int) (aux_div_aux_mod_v_~next~0_298_30_41 Int)) (let ((.cse60 (* aux_div_aux_mod_aux_mod_v_~next~0_298_30_41_58 4294967296)) (.cse61 (* aux_div_aux_mod_aux_mod_aux_mod_v_~next~0_298_30_41_58_63 4294967296)) (.cse59 (* aux_div_aux_mod_aux_mod_aux_mod_aux_mod_v_~next~0_298_30_41_58_63_74 4294967296)) (.cse58 (* 4294967296 aux_div_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_~next~0_298_30_41_58_63_74_85))) (let ((.cse54 (+ .cse58 aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_~next~0_298_30_41_58_63_74_85)) (.cse56 (+ .cse58 aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_~next~0_298_30_41_58_63_74_85 .cse59)) (.cse55 (+ .cse58 aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_~next~0_298_30_41_58_63_74_85 .cse59 .cse60 .cse61)) (.cse52 (+ .cse58 aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_~next~0_298_30_41_58_63_74_85 .cse59 .cse61)) (.cse53 (+ (* aux_div_aux_mod_v_~next~0_298_30_41 4294967296) .cse58 aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_~next~0_298_30_41_58_63_74_85 .cse59 .cse60 .cse61)) (.cse57 (store .cse0 (+ |c_~#buffer~0.offset| (- 4294967296) (mod (+ aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_~next~0_298_30_41_58_63_74_85 4294967295) 4294967296)) v_ArrVal_831))) (or (>= aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_~next~0_298_30_41_58_63_74_85 4294967296) (<= (mod (mod .cse52 .cse5) 4294967296) 0) (< .cse53 1) (<= 4294967296 .cse54) (<= 4294967297 .cse55) (<= 4294967296 .cse56) (> 0 aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_~next~0_298_30_41_58_63_74_85) (not (= (select .cse57 .cse22) .cse10)) (< .cse52 0) (< .cse54 0) (< .cse56 0) (< 0 (mod (mod (mod (+ (mod (mod (+ (mod aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_~next~0_298_30_41_58_63_74_85 .cse5) 1) 4294967296) .cse5) 1) 4294967296) .cse5) 4294967296)) (<= .cse55 1) (<= 4294967296 .cse52) (<= .cse13 .cse53) (not (= .cse14 (select (store .cse57 (+ |c_~#buffer~0.offset| (- 4294967296) (mod (mod (mod aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_~next~0_298_30_41_58_63_74_85 4294967296) .cse5) 4294967296)) v_ArrVal_833) .cse48)))))))) .cse20) (or .cse3 (and (forall ((aux_div_aux_mod_aux_mod_aux_mod_v_~next~0_298_30_41_58_63 Int) (aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_~next~0_298_30_41_58_63_74_85 Int) (aux_div_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_~next~0_298_30_41_58_63_74_85 Int) (aux_div_aux_mod_aux_mod_v_~next~0_298_30_41_58 Int) (v_ArrVal_833 Int) (aux_div_aux_mod_aux_mod_aux_mod_aux_mod_v_~next~0_298_30_41_58_63_74 Int) (v_ArrVal_831 Int) (aux_div_aux_mod_v_~next~0_298_30_41 Int)) (let ((.cse70 (* aux_div_aux_mod_aux_mod_v_~next~0_298_30_41_58 4294967296)) (.cse71 (* aux_div_aux_mod_aux_mod_aux_mod_v_~next~0_298_30_41_58_63 4294967296)) (.cse69 (* aux_div_aux_mod_aux_mod_aux_mod_aux_mod_v_~next~0_298_30_41_58_63_74 4294967296)) (.cse68 (* 4294967296 aux_div_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_~next~0_298_30_41_58_63_74_85))) (let ((.cse65 (+ .cse68 aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_~next~0_298_30_41_58_63_74_85)) (.cse67 (+ .cse68 aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_~next~0_298_30_41_58_63_74_85 .cse69)) (.cse66 (+ .cse68 aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_~next~0_298_30_41_58_63_74_85 .cse69 .cse70 .cse71)) (.cse63 (+ .cse68 aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_~next~0_298_30_41_58_63_74_85 .cse69 .cse71)) (.cse64 (+ (* aux_div_aux_mod_v_~next~0_298_30_41 4294967296) .cse68 aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_~next~0_298_30_41_58_63_74_85 .cse69 .cse70 .cse71)) (.cse62 (store .cse0 (+ |c_~#buffer~0.offset| (- 4294967296) (mod (+ aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_~next~0_298_30_41_58_63_74_85 4294967295) 4294967296)) v_ArrVal_831))) (or (>= aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_~next~0_298_30_41_58_63_74_85 4294967296) (not (= (select .cse62 .cse12) .cse10)) (<= (mod (mod .cse63 .cse5) 4294967296) 0) (< .cse64 1) (<= 4294967296 .cse65) (<= 4294967297 .cse66) (<= 4294967296 .cse67) (> 0 aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_~next~0_298_30_41_58_63_74_85) (< .cse63 0) (< .cse65 0) (< .cse67 0) (< 0 (mod (mod (mod (+ (mod (mod (+ (mod aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_~next~0_298_30_41_58_63_74_85 .cse5) 1) 4294967296) .cse5) 1) 4294967296) .cse5) 4294967296)) (<= .cse66 1) (<= 4294967296 .cse63) (<= .cse13 .cse64) (not (= .cse14 (select (store .cse62 (+ |c_~#buffer~0.offset| (- 4294967296) (mod (mod (mod aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_~next~0_298_30_41_58_63_74_85 4294967296) .cse5) 4294967296)) v_ArrVal_833) .cse48))))))) (or .cse32 (forall ((aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_~next~0_298_30_41_58_63_74 Int) (aux_div_aux_mod_aux_mod_aux_mod_v_~next~0_298_30_41_58_63 Int) (aux_div_aux_mod_aux_mod_v_~next~0_298_30_41_58 Int) (v_ArrVal_833 Int) (aux_div_aux_mod_aux_mod_aux_mod_aux_mod_v_~next~0_298_30_41_58_63_74 Int) (v_ArrVal_831 Int) (aux_div_aux_mod_v_~next~0_298_30_41 Int)) (let ((.cse77 (* aux_div_aux_mod_aux_mod_aux_mod_aux_mod_v_~next~0_298_30_41_58_63_74 4294967296)) (.cse79 (* aux_div_aux_mod_aux_mod_v_~next~0_298_30_41_58 4294967296)) (.cse78 (* aux_div_aux_mod_aux_mod_aux_mod_v_~next~0_298_30_41_58_63 4294967296))) (let ((.cse75 (+ (* aux_div_aux_mod_v_~next~0_298_30_41 4294967296) aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_~next~0_298_30_41_58_63_74 .cse77 .cse79 .cse78)) (.cse72 (store .cse0 (+ |c_~#buffer~0.offset| (mod (+ aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_~next~0_298_30_41_58_63_74 4294967295) 4294967296) (- 4294967296)) v_ArrVal_831)) (.cse76 (+ aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_~next~0_298_30_41_58_63_74 .cse77 .cse79 .cse78)) (.cse74 (+ aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_~next~0_298_30_41_58_63_74 .cse77 .cse78)) (.cse73 (+ aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_~next~0_298_30_41_58_63_74 .cse77))) (or (not (= (select .cse72 .cse12) .cse10)) (<= (mod (mod (mod (+ (mod .cse73 .cse5) 1) 4294967296) .cse5) 4294967296) 0) (< .cse74 0) (< .cse75 1) (>= aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_~next~0_298_30_41_58_63_74 4294967296) (> 0 aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_~next~0_298_30_41_58_63_74) (<= .cse13 .cse75) (<= 4294967297 .cse76) (not (= .cse14 (select (store .cse72 (+ |c_~#buffer~0.offset| (mod (mod (mod aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_~next~0_298_30_41_58_63_74 4294967296) .cse5) 4294967296) (- 4294967296)) v_ArrVal_833) .cse48))) (<= (mod (mod .cse74 .cse5) 4294967296) 0) (<= .cse76 1) (<= 4294967296 .cse73) (<= 4294967296 .cse74) (< .cse73 0)))))))) (or (and (or .cse32 (forall ((aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_~next~0_298_30_41_58_63_74 Int) (aux_div_aux_mod_aux_mod_aux_mod_v_~next~0_298_30_41_58_63 Int) (aux_div_aux_mod_aux_mod_v_~next~0_298_30_41_58 Int) (v_ArrVal_833 Int) (aux_div_aux_mod_aux_mod_aux_mod_aux_mod_v_~next~0_298_30_41_58_63_74 Int) (aux_div_aux_mod_v_~next~0_298_30_41 Int) (v_ArrVal_831 Int)) (let ((.cse85 (* aux_div_aux_mod_aux_mod_aux_mod_aux_mod_v_~next~0_298_30_41_58_63_74 4294967296)) (.cse87 (* aux_div_aux_mod_aux_mod_v_~next~0_298_30_41_58 4294967296)) (.cse86 (* aux_div_aux_mod_aux_mod_aux_mod_v_~next~0_298_30_41_58_63 4294967296))) (let ((.cse82 (+ (* aux_div_aux_mod_v_~next~0_298_30_41 4294967296) aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_~next~0_298_30_41_58_63_74 .cse85 .cse87 .cse86)) (.cse83 (store .cse0 (+ |c_~#buffer~0.offset| (mod (+ aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_~next~0_298_30_41_58_63_74 4294967295) 4294967296)) v_ArrVal_831)) (.cse84 (+ aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_~next~0_298_30_41_58_63_74 .cse85 .cse87 .cse86)) (.cse81 (+ aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_~next~0_298_30_41_58_63_74 .cse85 .cse86)) (.cse80 (+ aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_~next~0_298_30_41_58_63_74 .cse85))) (or (<= (mod (mod (mod (+ (mod .cse80 .cse5) 1) 4294967296) .cse5) 4294967296) 0) (< .cse81 0) (< .cse82 1) (>= aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_~next~0_298_30_41_58_63_74 4294967296) (> 0 aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_~next~0_298_30_41_58_63_74) (not (= .cse14 (select (store .cse83 (+ |c_~#buffer~0.offset| (mod (mod (mod aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_~next~0_298_30_41_58_63_74 4294967296) .cse5) 4294967296) (- 4294967296)) v_ArrVal_833) .cse48))) (<= .cse13 .cse82) (<= 4294967297 .cse84) (not (= (select .cse83 .cse22) .cse10)) (<= (mod (mod .cse81 .cse5) 4294967296) 0) (<= .cse84 1) (<= 4294967296 .cse80) (<= 4294967296 .cse81) (< .cse80 0)))))) (forall ((aux_div_aux_mod_aux_mod_aux_mod_v_~next~0_298_30_41_58_63 Int) (aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_~next~0_298_30_41_58_63_74_85 Int) (aux_div_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_~next~0_298_30_41_58_63_74_85 Int) (aux_div_aux_mod_aux_mod_v_~next~0_298_30_41_58 Int) (v_ArrVal_833 Int) (aux_div_aux_mod_aux_mod_aux_mod_aux_mod_v_~next~0_298_30_41_58_63_74 Int) (v_ArrVal_831 Int) (aux_div_aux_mod_v_~next~0_298_30_41 Int)) (let ((.cse96 (* aux_div_aux_mod_aux_mod_v_~next~0_298_30_41_58 4294967296)) (.cse97 (* aux_div_aux_mod_aux_mod_aux_mod_v_~next~0_298_30_41_58_63 4294967296)) (.cse95 (* aux_div_aux_mod_aux_mod_aux_mod_aux_mod_v_~next~0_298_30_41_58_63_74 4294967296)) (.cse94 (* 4294967296 aux_div_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_~next~0_298_30_41_58_63_74_85))) (let ((.cse88 (store .cse0 (+ |c_~#buffer~0.offset| (mod (+ aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_~next~0_298_30_41_58_63_74_85 4294967295) 4294967296)) v_ArrVal_831)) (.cse91 (+ .cse94 aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_~next~0_298_30_41_58_63_74_85)) (.cse93 (+ .cse94 aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_~next~0_298_30_41_58_63_74_85 .cse95)) (.cse92 (+ .cse94 aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_~next~0_298_30_41_58_63_74_85 .cse95 .cse96 .cse97)) (.cse89 (+ .cse94 aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_~next~0_298_30_41_58_63_74_85 .cse95 .cse97)) (.cse90 (+ (* aux_div_aux_mod_v_~next~0_298_30_41 4294967296) .cse94 aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_~next~0_298_30_41_58_63_74_85 .cse95 .cse96 .cse97))) (or (>= aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_~next~0_298_30_41_58_63_74_85 4294967296) (not (= (select .cse88 .cse22) .cse10)) (<= (mod (mod .cse89 .cse5) 4294967296) 0) (< .cse90 1) (<= 4294967296 .cse91) (<= 4294967297 .cse92) (not (= .cse14 (select (store .cse88 (+ |c_~#buffer~0.offset| (- 4294967296) (mod (mod (mod aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_~next~0_298_30_41_58_63_74_85 4294967296) .cse5) 4294967296)) v_ArrVal_833) .cse48))) (<= 4294967296 .cse93) (> 0 aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_~next~0_298_30_41_58_63_74_85) (< .cse89 0) (< .cse91 0) (< .cse93 0) (< 0 (mod (mod (mod (+ (mod (mod (+ (mod aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_~next~0_298_30_41_58_63_74_85 .cse5) 1) 4294967296) .cse5) 1) 4294967296) .cse5) 4294967296)) (<= .cse92 1) (<= 4294967296 .cse89) (<= .cse13 .cse90)))))) .cse20)))))))))) is different from true Received shutdown request... [2022-12-05 22:38:27,171 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2022-12-05 22:38:27,171 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2022-12-05 22:38:27,200 WARN L249 SmtUtils]: Removed 2 from assertion stack [2022-12-05 22:38:27,201 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location t2Err0ASSERT_VIOLATIONERROR_FUNCTION (7 of 8 remaining) [2022-12-05 22:38:27,209 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2022-12-05 22:38:27,402 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-05 22:38:27,402 WARN L619 AbstractCegarLoop]: Verification canceled: while CegarLoopForPetriNet was analyzing trace of length 73 with TraceHistMax 5,while TraceCheckSpWp was constructing backward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 8 for 2ms.. [2022-12-05 22:38:27,403 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (6 of 8 remaining) [2022-12-05 22:38:27,403 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (5 of 8 remaining) [2022-12-05 22:38:27,403 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location t1Err0ASSERT_VIOLATIONERROR_FUNCTION (4 of 8 remaining) [2022-12-05 22:38:27,403 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location t1Err1ASSERT_VIOLATIONERROR_FUNCTION (3 of 8 remaining) [2022-12-05 22:38:27,403 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location t2Err0ASSERT_VIOLATIONERROR_FUNCTION (2 of 8 remaining) [2022-12-05 22:38:27,403 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location t1Err0ASSERT_VIOLATIONERROR_FUNCTION (1 of 8 remaining) [2022-12-05 22:38:27,404 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location t1Err1ASSERT_VIOLATIONERROR_FUNCTION (0 of 8 remaining) [2022-12-05 22:38:27,404 INFO L458 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-05 22:38:27,406 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-12-05 22:38:27,406 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-05 22:38:27,408 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 05.12 10:38:27 BasicIcfg [2022-12-05 22:38:27,408 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-05 22:38:27,408 INFO L158 Benchmark]: Toolchain (without parser) took 877058.95ms. Allocated memory was 176.2MB in the beginning and 260.0MB in the end (delta: 83.9MB). Free memory was 150.7MB in the beginning and 160.5MB in the end (delta: -9.8MB). Peak memory consumption was 163.2MB. Max. memory is 8.0GB. [2022-12-05 22:38:27,408 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 127.9MB. Free memory was 104.8MB in the beginning and 104.7MB in the end (delta: 87.4kB). There was no memory consumed. Max. memory is 8.0GB. [2022-12-05 22:38:27,408 INFO L158 Benchmark]: CACSL2BoogieTranslator took 334.62ms. Allocated memory is still 176.2MB. Free memory was 150.7MB in the beginning and 130.4MB in the end (delta: 20.3MB). Peak memory consumption was 19.9MB. Max. memory is 8.0GB. [2022-12-05 22:38:27,409 INFO L158 Benchmark]: Boogie Procedure Inliner took 48.53ms. Allocated memory is still 176.2MB. Free memory was 129.9MB in the beginning and 127.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-12-05 22:38:27,409 INFO L158 Benchmark]: Boogie Preprocessor took 31.47ms. Allocated memory is still 176.2MB. Free memory was 127.8MB in the beginning and 126.2MB in the end (delta: 1.6MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-12-05 22:38:27,409 INFO L158 Benchmark]: RCFGBuilder took 479.70ms. Allocated memory is still 176.2MB. Free memory was 125.7MB in the beginning and 108.4MB in the end (delta: 17.3MB). Peak memory consumption was 16.8MB. Max. memory is 8.0GB. [2022-12-05 22:38:27,409 INFO L158 Benchmark]: TraceAbstraction took 876152.20ms. Allocated memory was 176.2MB in the beginning and 260.0MB in the end (delta: 83.9MB). Free memory was 107.8MB in the beginning and 160.5MB in the end (delta: -52.7MB). Peak memory consumption was 120.2MB. Max. memory is 8.0GB. [2022-12-05 22:38:27,410 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11ms. Allocated memory is still 127.9MB. Free memory was 104.8MB in the beginning and 104.7MB in the end (delta: 87.4kB). There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 334.62ms. Allocated memory is still 176.2MB. Free memory was 150.7MB in the beginning and 130.4MB in the end (delta: 20.3MB). Peak memory consumption was 19.9MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 48.53ms. Allocated memory is still 176.2MB. Free memory was 129.9MB in the beginning and 127.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 31.47ms. Allocated memory is still 176.2MB. Free memory was 127.8MB in the beginning and 126.2MB in the end (delta: 1.6MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 479.70ms. Allocated memory is still 176.2MB. Free memory was 125.7MB in the beginning and 108.4MB in the end (delta: 17.3MB). Peak memory consumption was 16.8MB. Max. memory is 8.0GB. * TraceAbstraction took 876152.20ms. Allocated memory was 176.2MB in the beginning and 260.0MB in the end (delta: 83.9MB). Free memory was 107.8MB in the beginning and 160.5MB in the end (delta: -52.7MB). Peak memory consumption was 120.2MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 8.1s, 133 PlacesBefore, 40 PlacesAfterwards, 137 TransitionsBefore, 42 TransitionsAfterwards, 4498 CoEnabledTransitionPairs, 3 FixpointIterations, 0 TrivialSequentialCompositions, 8 ConcurrentSequentialCompositions, 42 TrivialYvCompositions, 60 ConcurrentYvCompositions, 3 ChoiceCompositions, 113 TotalNumberOfCompositions, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 4166, independent: 4051, independent conditional: 4051, independent unconditional: 0, dependent: 110, dependent conditional: 110, dependent unconditional: 0, unknown: 5, unknown conditional: 5, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 4166, independent: 4051, independent conditional: 0, independent unconditional: 4051, dependent: 110, dependent conditional: 0, dependent unconditional: 110, unknown: 5, unknown conditional: 0, unknown unconditional: 5] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 4166, independent: 4051, independent conditional: 0, independent unconditional: 4051, dependent: 110, dependent conditional: 0, dependent unconditional: 110, unknown: 5, unknown conditional: 0, unknown unconditional: 5] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 4166, independent: 4051, independent conditional: 0, independent unconditional: 4051, dependent: 110, dependent conditional: 0, dependent unconditional: 110, unknown: 5, unknown conditional: 0, unknown unconditional: 5] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 3063, independent: 3020, independent conditional: 0, independent unconditional: 3020, dependent: 42, dependent conditional: 0, dependent unconditional: 42, unknown: 1, unknown conditional: 0, unknown unconditional: 1] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 3063, independent: 2942, independent conditional: 0, independent unconditional: 2942, dependent: 121, dependent conditional: 0, dependent unconditional: 121, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 121, independent: 78, independent conditional: 0, independent unconditional: 78, dependent: 42, dependent conditional: 0, dependent unconditional: 42, unknown: 1, unknown conditional: 0, unknown unconditional: 1] , SemanticIndependenceRelation.Query Time [ms]: [ total: 2336, independent: 74, independent conditional: 0, independent unconditional: 74, dependent: 133, dependent conditional: 0, dependent unconditional: 133, unknown: 2129, unknown conditional: 0, unknown unconditional: 2129] ], Cache Queries: [ total: 4166, independent: 1031, independent conditional: 0, independent unconditional: 1031, dependent: 68, dependent conditional: 0, dependent unconditional: 68, unknown: 3067, unknown conditional: 0, unknown unconditional: 3067] , Statistics on independence cache: Total cache size (in pairs): 5688, Positive cache size: 5646, Positive conditional cache size: 0, Positive unconditional cache size: 5646, Negative cache size: 42, Negative conditional cache size: 0, Negative unconditional cache size: 42, Unknown cache size: 1, Unknown conditional cache size: 0, Unknown unconditional cache size: 1, Eliminated conditions: 0, Maximal queried relation: -1 - TimeoutResultAtElement [Line: 749]: Timeout (TraceAbstraction) Unable to prove that call to reach_error is unreachable Cancelled while CegarLoopForPetriNet was analyzing trace of length 73 with TraceHistMax 5,while TraceCheckSpWp was constructing backward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 8 for 2ms.. - TimeoutResultAtElement [Line: 764]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while CegarLoopForPetriNet was analyzing trace of length 73 with TraceHistMax 5,while TraceCheckSpWp was constructing backward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 8 for 2ms.. - TimeoutResultAtElement [Line: 763]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while CegarLoopForPetriNet was analyzing trace of length 73 with TraceHistMax 5,while TraceCheckSpWp was constructing backward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 8 for 2ms.. - TimeoutResultAtElement [Line: 714]: Timeout (TraceAbstraction) Unable to prove that call to reach_error is unreachable Cancelled while CegarLoopForPetriNet was analyzing trace of length 73 with TraceHistMax 5,while TraceCheckSpWp was constructing backward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 8 for 2ms.. - TimeoutResultAtElement [Line: 731]: Timeout (TraceAbstraction) Unable to prove that call to reach_error is unreachable Cancelled while CegarLoopForPetriNet was analyzing trace of length 73 with TraceHistMax 5,while TraceCheckSpWp was constructing backward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 8 for 2ms.. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 212 locations, 8 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: 876.0s, OverallIterations: 12, TraceHistogramMax: 5, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 80.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 8.3s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1087 SdHoareTripleChecker+Valid, 20.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1087 mSDsluCounter, 68 SdHoareTripleChecker+Invalid, 19.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 57 mSDsCounter, 111 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 2490 IncrementalHoareTripleChecker+Invalid, 2601 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 111 mSolverCounterUnsat, 11 mSDtfsCounter, 2490 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 256 GetRequests, 160 SyntacticMatches, 1 SemanticMatches, 95 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1139 ImplicationChecksByTransitivity, 63.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=916occurred in iteration=11, InterpolantAutomatonStates: 94, 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: 0.1s SsaConstructionTime, 1.0s SatisfiabilityAnalysisTime, 9.9s InterpolantComputationTime, 166 NumberOfCodeBlocks, 166 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 214 ConstructedInterpolants, 1 QuantifiedInterpolants, 4108 SizeOfPredicates, 43 NumberOfNonLiveVariables, 1906 ConjunctsInSsa, 133 ConjunctsInUnsatCore, 13 InterpolantComputations, 9 PerfectInterpolantSequences, 7/47 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown