./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/ldv-races/race-3_1-container_of-global.i --full-output --traceabstraction.positions.where.we.compute.the.hoare.annotation All --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 273a578a Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../../../trunk/examples/svcomp/ldv-races/race-3_1-container_of-global.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 79b55bbc1c83a113dd61cfbd1c59324170026eea9fc3fed8c2e488e492b32e33 --traceabstraction.positions.where.we.compute.the.hoare.annotation All --- Real Ultimate output --- This is Ultimate 0.2.4-tmp.dk.owicki-witnesses-273a578-m [2024-02-19 14:15:47,803 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-02-19 14:15:47,863 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-02-19 14:15:47,872 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-02-19 14:15:47,873 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-02-19 14:15:47,903 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-02-19 14:15:47,903 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-02-19 14:15:47,904 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-02-19 14:15:47,904 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-02-19 14:15:47,908 INFO L153 SettingsManager]: * Use memory slicer=true [2024-02-19 14:15:47,908 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-02-19 14:15:47,908 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-02-19 14:15:47,909 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-02-19 14:15:47,910 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-02-19 14:15:47,910 INFO L153 SettingsManager]: * Use SBE=true [2024-02-19 14:15:47,910 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-02-19 14:15:47,910 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-02-19 14:15:47,910 INFO L153 SettingsManager]: * sizeof long=4 [2024-02-19 14:15:47,911 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-02-19 14:15:47,911 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-02-19 14:15:47,911 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-02-19 14:15:47,911 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-02-19 14:15:47,912 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-02-19 14:15:47,912 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-02-19 14:15:47,912 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-02-19 14:15:47,912 INFO L153 SettingsManager]: * sizeof long double=12 [2024-02-19 14:15:47,912 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-02-19 14:15:47,912 INFO L153 SettingsManager]: * Use constant arrays=true [2024-02-19 14:15:47,913 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-02-19 14:15:47,913 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-02-19 14:15:47,914 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-02-19 14:15:47,914 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-02-19 14:15:47,914 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-02-19 14:15:47,915 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-02-19 14:15:47,915 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-02-19 14:15:47,915 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-02-19 14:15:47,916 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-02-19 14:15:47,916 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-02-19 14:15:47,916 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-02-19 14:15:47,916 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-02-19 14:15:47,916 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2024-02-19 14:15:47,916 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-02-19 14:15:47,917 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-02-19 14:15:47,917 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 79b55bbc1c83a113dd61cfbd1c59324170026eea9fc3fed8c2e488e492b32e33 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Positions where we compute the Hoare Annotation -> All [2024-02-19 14:15:48,204 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-02-19 14:15:48,219 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-02-19 14:15:48,222 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-02-19 14:15:48,223 INFO L270 PluginConnector]: Initializing CDTParser... [2024-02-19 14:15:48,223 INFO L274 PluginConnector]: CDTParser initialized [2024-02-19 14:15:48,224 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-races/race-3_1-container_of-global.i [2024-02-19 14:15:49,429 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-02-19 14:15:49,682 INFO L384 CDTParser]: Found 1 translation units. [2024-02-19 14:15:49,683 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-races/race-3_1-container_of-global.i [2024-02-19 14:15:49,702 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f79e14571/9bff366d9dd44c88bfa2783418966e0a/FLAG947b6f789 [2024-02-19 14:15:49,713 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f79e14571/9bff366d9dd44c88bfa2783418966e0a [2024-02-19 14:15:49,715 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-02-19 14:15:49,716 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-02-19 14:15:49,717 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-02-19 14:15:49,717 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-02-19 14:15:49,720 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-02-19 14:15:49,721 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.02 02:15:49" (1/1) ... [2024-02-19 14:15:49,722 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5b120f93 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.02 02:15:49, skipping insertion in model container [2024-02-19 14:15:49,722 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.02 02:15:49" (1/1) ... [2024-02-19 14:15:49,776 INFO L177 MainTranslator]: Built tables and reachable declarations [2024-02-19 14:15:50,223 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/ldv-races/race-3_1-container_of-global.i[76084,76097] [2024-02-19 14:15:50,270 INFO L207 PostProcessor]: Analyzing one entry point: main [2024-02-19 14:15:50,286 INFO L202 MainTranslator]: Completed pre-run [2024-02-19 14:15:50,334 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/ldv-races/race-3_1-container_of-global.i[76084,76097] [2024-02-19 14:15:50,356 INFO L207 PostProcessor]: Analyzing one entry point: main [2024-02-19 14:15:50,454 INFO L206 MainTranslator]: Completed translation [2024-02-19 14:15:50,455 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.02 02:15:50 WrapperNode [2024-02-19 14:15:50,455 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-02-19 14:15:50,456 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-02-19 14:15:50,456 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-02-19 14:15:50,456 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-02-19 14:15:50,461 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.02 02:15:50" (1/1) ... [2024-02-19 14:15:50,481 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.02 02:15:50" (1/1) ... [2024-02-19 14:15:50,503 INFO L138 Inliner]: procedures = 483, calls = 47, calls flagged for inlining = 12, calls inlined = 12, statements flattened = 135 [2024-02-19 14:15:50,503 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-02-19 14:15:50,504 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-02-19 14:15:50,504 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-02-19 14:15:50,504 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-02-19 14:15:50,512 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.02 02:15:50" (1/1) ... [2024-02-19 14:15:50,513 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.02 02:15:50" (1/1) ... [2024-02-19 14:15:50,516 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.02 02:15:50" (1/1) ... [2024-02-19 14:15:50,530 INFO L175 MemorySlicer]: Split 23 memory accesses to 5 slices as follows [2, 13, 3, 3, 2]. 57 percent of accesses are in the largest equivalence class. The 4 initializations are split as follows [2, 0, 1, 1, 0]. The 10 writes are split as follows [0, 6, 1, 1, 2]. [2024-02-19 14:15:50,530 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.02 02:15:50" (1/1) ... [2024-02-19 14:15:50,530 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.02 02:15:50" (1/1) ... [2024-02-19 14:15:50,539 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.02 02:15:50" (1/1) ... [2024-02-19 14:15:50,541 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.02 02:15:50" (1/1) ... [2024-02-19 14:15:50,544 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.02 02:15:50" (1/1) ... [2024-02-19 14:15:50,546 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.02 02:15:50" (1/1) ... [2024-02-19 14:15:50,565 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-02-19 14:15:50,565 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-02-19 14:15:50,566 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-02-19 14:15:50,566 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-02-19 14:15:50,566 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.02 02:15:50" (1/1) ... [2024-02-19 14:15:50,579 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-02-19 14:15:50,590 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-02-19 14:15:50,602 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-02-19 14:15:50,650 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-02-19 14:15:50,675 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-02-19 14:15:50,675 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-02-19 14:15:50,675 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-02-19 14:15:50,675 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-02-19 14:15:50,676 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-02-19 14:15:50,676 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-02-19 14:15:50,677 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-02-19 14:15:50,677 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-02-19 14:15:50,677 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-02-19 14:15:50,678 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-02-19 14:15:50,678 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-02-19 14:15:50,678 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2024-02-19 14:15:50,678 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2024-02-19 14:15:50,678 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-02-19 14:15:50,678 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-02-19 14:15:50,678 INFO L130 BoogieDeclarations]: Found specification of procedure my_callback [2024-02-19 14:15:50,679 INFO L138 BoogieDeclarations]: Found implementation of procedure my_callback [2024-02-19 14:15:50,679 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-02-19 14:15:50,679 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-02-19 14:15:50,679 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-02-19 14:15:50,680 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-02-19 14:15:50,680 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-02-19 14:15:50,680 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-02-19 14:15:50,680 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-02-19 14:15:50,681 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-02-19 14:15:50,681 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-02-19 14:15:50,681 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-02-19 14:15:50,681 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-02-19 14:15:50,681 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-02-19 14:15:50,683 WARN L214 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2024-02-19 14:15:50,890 INFO L244 CfgBuilder]: Building ICFG [2024-02-19 14:15:50,892 INFO L270 CfgBuilder]: Building CFG for each procedure with an implementation [2024-02-19 14:15:51,051 INFO L289 CfgBuilder]: Ommited future-live optimization because the input is a concurrent program. [2024-02-19 14:15:51,051 INFO L293 CfgBuilder]: Performing block encoding [2024-02-19 14:15:51,179 INFO L315 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-02-19 14:15:51,179 INFO L320 CfgBuilder]: Removed 0 assume(true) statements. [2024-02-19 14:15:51,180 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.02 02:15:51 BoogieIcfgContainer [2024-02-19 14:15:51,180 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-02-19 14:15:51,181 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-02-19 14:15:51,181 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-02-19 14:15:51,184 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-02-19 14:15:51,184 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.02 02:15:49" (1/3) ... [2024-02-19 14:15:51,184 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@43e94d08 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.02 02:15:51, skipping insertion in model container [2024-02-19 14:15:51,184 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.02 02:15:50" (2/3) ... [2024-02-19 14:15:51,185 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@43e94d08 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.02 02:15:51, skipping insertion in model container [2024-02-19 14:15:51,185 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.02 02:15:51" (3/3) ... [2024-02-19 14:15:51,186 INFO L112 eAbstractionObserver]: Analyzing ICFG race-3_1-container_of-global.i [2024-02-19 14:15:51,199 INFO L221 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-02-19 14:15:51,199 INFO L180 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2024-02-19 14:15:51,199 INFO L631 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-02-19 14:15:51,236 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-02-19 14:15:51,262 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 58 places, 60 transitions, 134 flow [2024-02-19 14:15:51,303 INFO L124 PetriNetUnfolderBase]: 10/73 cut-off events. [2024-02-19 14:15:51,303 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-02-19 14:15:51,311 INFO L83 FinitePrefix]: Finished finitePrefix Result has 82 conditions, 73 events. 10/73 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 145 event pairs, 0 based on Foata normal form. 0/53 useless extension candidates. Maximal degree in co-relation 39. Up to 4 conditions per place. [2024-02-19 14:15:51,311 INFO L82 GeneralOperation]: Start removeDead. Operand has 58 places, 60 transitions, 134 flow [2024-02-19 14:15:51,316 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 53 places, 53 transitions, 118 flow [2024-02-19 14:15:51,349 INFO L368 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-02-19 14:15:51,355 INFO L369 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=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=All, 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;@221ab2f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-02-19 14:15:51,355 INFO L370 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2024-02-19 14:15:51,360 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-02-19 14:15:51,361 INFO L124 PetriNetUnfolderBase]: 1/5 cut-off events. [2024-02-19 14:15:51,361 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-02-19 14:15:51,361 INFO L226 CegarLoopForPetriNet]: Found error trace [2024-02-19 14:15:51,362 INFO L234 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2024-02-19 14:15:51,362 INFO L432 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2024-02-19 14:15:51,368 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-02-19 14:15:51,368 INFO L85 PathProgramCache]: Analyzing trace with hash 13590762, now seen corresponding path program 1 times [2024-02-19 14:15:51,379 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-02-19 14:15:51,380 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1366813867] [2024-02-19 14:15:51,380 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-19 14:15:51,380 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-02-19 14:15:51,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-02-19 14:15:51,863 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-02-19 14:15:51,864 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-02-19 14:15:51,864 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1366813867] [2024-02-19 14:15:51,864 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1366813867] provided 1 perfect and 0 imperfect interpolant sequences [2024-02-19 14:15:51,864 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-02-19 14:15:51,865 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-02-19 14:15:51,898 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [525713036] [2024-02-19 14:15:51,899 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-02-19 14:15:51,920 INFO L584 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-02-19 14:15:51,923 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-02-19 14:15:51,944 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-02-19 14:15:51,945 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-02-19 14:15:51,959 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 60 [2024-02-19 14:15:51,961 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 53 places, 53 transitions, 118 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) [2024-02-19 14:15:51,962 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-02-19 14:15:51,962 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 60 [2024-02-19 14:15:51,963 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-02-19 14:15:52,155 INFO L124 PetriNetUnfolderBase]: 466/832 cut-off events. [2024-02-19 14:15:52,155 INFO L125 PetriNetUnfolderBase]: For 16/16 co-relation queries the response was YES. [2024-02-19 14:15:52,159 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1657 conditions, 832 events. 466/832 cut-off events. For 16/16 co-relation queries the response was YES. Maximal size of possible extension queue 45. Compared 3540 event pairs, 345 based on Foata normal form. 3/831 useless extension candidates. Maximal degree in co-relation 1547. Up to 602 conditions per place. [2024-02-19 14:15:52,163 INFO L140 encePairwiseOnDemand]: 45/60 looper letters, 39 selfloop transitions, 10 changer transitions 0/54 dead transitions. [2024-02-19 14:15:52,164 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 51 places, 54 transitions, 218 flow [2024-02-19 14:15:52,165 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-02-19 14:15:52,166 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-02-19 14:15:52,172 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 84 transitions. [2024-02-19 14:15:52,174 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.4666666666666667 [2024-02-19 14:15:52,179 INFO L308 CegarLoopForPetriNet]: 53 programPoint places, -2 predicate places. [2024-02-19 14:15:52,179 INFO L507 AbstractCegarLoop]: Abstraction has has 51 places, 54 transitions, 218 flow [2024-02-19 14:15:52,179 INFO L508 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) [2024-02-19 14:15:52,180 INFO L226 CegarLoopForPetriNet]: Found error trace [2024-02-19 14:15:52,180 INFO L234 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2024-02-19 14:15:52,180 WARN L489 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-02-19 14:15:52,180 INFO L432 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2024-02-19 14:15:52,181 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-02-19 14:15:52,181 INFO L85 PathProgramCache]: Analyzing trace with hash 175853869, now seen corresponding path program 1 times [2024-02-19 14:15:52,182 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-02-19 14:15:52,182 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [188256959] [2024-02-19 14:15:52,182 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-19 14:15:52,182 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-02-19 14:15:52,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-02-19 14:15:52,312 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-02-19 14:15:52,313 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-02-19 14:15:52,313 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [188256959] [2024-02-19 14:15:52,313 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [188256959] provided 1 perfect and 0 imperfect interpolant sequences [2024-02-19 14:15:52,313 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-02-19 14:15:52,313 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-02-19 14:15:52,314 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [539020442] [2024-02-19 14:15:52,314 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-02-19 14:15:52,315 INFO L584 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-02-19 14:15:52,315 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-02-19 14:15:52,315 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-02-19 14:15:52,316 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-02-19 14:15:52,334 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 60 [2024-02-19 14:15:52,335 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 51 places, 54 transitions, 218 flow. Second operand has 4 states, 4 states have (on average 11.25) internal successors, (45), 4 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-02-19 14:15:52,335 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-02-19 14:15:52,335 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 60 [2024-02-19 14:15:52,335 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-02-19 14:15:52,503 INFO L124 PetriNetUnfolderBase]: 466/821 cut-off events. [2024-02-19 14:15:52,503 INFO L125 PetriNetUnfolderBase]: For 27/27 co-relation queries the response was YES. [2024-02-19 14:15:52,505 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2445 conditions, 821 events. 466/821 cut-off events. For 27/27 co-relation queries the response was YES. Maximal size of possible extension queue 44. Compared 3487 event pairs, 155 based on Foata normal form. 0/818 useless extension candidates. Maximal degree in co-relation 2292. Up to 601 conditions per place. [2024-02-19 14:15:52,510 INFO L140 encePairwiseOnDemand]: 48/60 looper letters, 47 selfloop transitions, 11 changer transitions 0/62 dead transitions. [2024-02-19 14:15:52,511 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 53 places, 62 transitions, 371 flow [2024-02-19 14:15:52,511 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-02-19 14:15:52,511 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-02-19 14:15:52,513 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 109 transitions. [2024-02-19 14:15:52,513 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.36333333333333334 [2024-02-19 14:15:52,514 INFO L308 CegarLoopForPetriNet]: 53 programPoint places, 0 predicate places. [2024-02-19 14:15:52,515 INFO L507 AbstractCegarLoop]: Abstraction has has 53 places, 62 transitions, 371 flow [2024-02-19 14:15:52,515 INFO L508 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.25) internal successors, (45), 4 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-02-19 14:15:52,515 INFO L226 CegarLoopForPetriNet]: Found error trace [2024-02-19 14:15:52,515 INFO L234 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-02-19 14:15:52,516 WARN L489 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-02-19 14:15:52,516 INFO L432 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2024-02-19 14:15:52,517 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-02-19 14:15:52,517 INFO L85 PathProgramCache]: Analyzing trace with hash -1195863854, now seen corresponding path program 1 times [2024-02-19 14:15:52,518 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-02-19 14:15:52,518 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1056616964] [2024-02-19 14:15:52,518 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-19 14:15:52,518 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-02-19 14:15:52,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-02-19 14:15:52,744 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-02-19 14:15:52,745 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-02-19 14:15:52,745 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1056616964] [2024-02-19 14:15:52,746 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1056616964] provided 1 perfect and 0 imperfect interpolant sequences [2024-02-19 14:15:52,746 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-02-19 14:15:52,746 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-02-19 14:15:52,746 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2019350089] [2024-02-19 14:15:52,746 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-02-19 14:15:52,747 INFO L584 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-02-19 14:15:52,747 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-02-19 14:15:52,747 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-02-19 14:15:52,748 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-02-19 14:15:52,759 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 60 [2024-02-19 14:15:52,759 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 53 places, 62 transitions, 371 flow. Second operand has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-02-19 14:15:52,760 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-02-19 14:15:52,760 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 60 [2024-02-19 14:15:52,760 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-02-19 14:15:52,921 INFO L124 PetriNetUnfolderBase]: 562/1032 cut-off events. [2024-02-19 14:15:52,921 INFO L125 PetriNetUnfolderBase]: For 48/48 co-relation queries the response was YES. [2024-02-19 14:15:52,922 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4038 conditions, 1032 events. 562/1032 cut-off events. For 48/48 co-relation queries the response was YES. Maximal size of possible extension queue 60. Compared 4951 event pairs, 119 based on Foata normal form. 64/1093 useless extension candidates. Maximal degree in co-relation 3844. Up to 684 conditions per place. [2024-02-19 14:15:52,926 INFO L140 encePairwiseOnDemand]: 47/60 looper letters, 56 selfloop transitions, 10 changer transitions 24/94 dead transitions. [2024-02-19 14:15:52,927 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 56 places, 94 transitions, 743 flow [2024-02-19 14:15:52,927 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-02-19 14:15:52,927 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-02-19 14:15:52,928 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 102 transitions. [2024-02-19 14:15:52,928 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.425 [2024-02-19 14:15:52,929 INFO L308 CegarLoopForPetriNet]: 53 programPoint places, 3 predicate places. [2024-02-19 14:15:52,929 INFO L507 AbstractCegarLoop]: Abstraction has has 56 places, 94 transitions, 743 flow [2024-02-19 14:15:52,929 INFO L508 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-02-19 14:15:52,929 INFO L226 CegarLoopForPetriNet]: Found error trace [2024-02-19 14:15:52,929 INFO L234 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-02-19 14:15:52,929 WARN L489 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-02-19 14:15:52,930 INFO L432 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2024-02-19 14:15:52,930 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-02-19 14:15:52,930 INFO L85 PathProgramCache]: Analyzing trace with hash -1893649285, now seen corresponding path program 1 times [2024-02-19 14:15:52,930 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-02-19 14:15:52,930 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1916216035] [2024-02-19 14:15:52,931 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-19 14:15:52,931 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-02-19 14:15:52,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-02-19 14:15:52,994 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-02-19 14:15:52,994 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-02-19 14:15:52,994 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1916216035] [2024-02-19 14:15:52,995 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1916216035] provided 1 perfect and 0 imperfect interpolant sequences [2024-02-19 14:15:52,995 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-02-19 14:15:52,995 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-02-19 14:15:52,995 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1215945662] [2024-02-19 14:15:52,995 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-02-19 14:15:52,995 INFO L584 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-02-19 14:15:52,996 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-02-19 14:15:52,996 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-02-19 14:15:52,996 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-02-19 14:15:52,997 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 21 out of 60 [2024-02-19 14:15:52,998 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 56 places, 94 transitions, 743 flow. Second operand has 4 states, 4 states have (on average 25.0) internal successors, (100), 4 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-02-19 14:15:52,998 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-02-19 14:15:52,998 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 21 of 60 [2024-02-19 14:15:52,998 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-02-19 14:15:53,130 INFO L124 PetriNetUnfolderBase]: 225/420 cut-off events. [2024-02-19 14:15:53,130 INFO L125 PetriNetUnfolderBase]: For 17/17 co-relation queries the response was YES. [2024-02-19 14:15:53,131 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2109 conditions, 420 events. 225/420 cut-off events. For 17/17 co-relation queries the response was YES. Maximal size of possible extension queue 23. Compared 1408 event pairs, 71 based on Foata normal form. 36/453 useless extension candidates. Maximal degree in co-relation 1862. Up to 409 conditions per place. [2024-02-19 14:15:53,133 INFO L140 encePairwiseOnDemand]: 56/60 looper letters, 58 selfloop transitions, 4 changer transitions 11/80 dead transitions. [2024-02-19 14:15:53,133 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 58 places, 80 transitions, 779 flow [2024-02-19 14:15:53,133 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-02-19 14:15:53,133 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-02-19 14:15:53,134 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 161 transitions. [2024-02-19 14:15:53,134 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.5366666666666666 [2024-02-19 14:15:53,135 INFO L308 CegarLoopForPetriNet]: 53 programPoint places, 5 predicate places. [2024-02-19 14:15:53,135 INFO L507 AbstractCegarLoop]: Abstraction has has 58 places, 80 transitions, 779 flow [2024-02-19 14:15:53,135 INFO L508 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 25.0) internal successors, (100), 4 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-02-19 14:15:53,135 INFO L226 CegarLoopForPetriNet]: Found error trace [2024-02-19 14:15:53,136 INFO L234 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-02-19 14:15:53,136 WARN L489 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-02-19 14:15:53,136 INFO L432 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2024-02-19 14:15:53,136 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-02-19 14:15:53,136 INFO L85 PathProgramCache]: Analyzing trace with hash -1727664785, now seen corresponding path program 1 times [2024-02-19 14:15:53,136 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-02-19 14:15:53,137 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1012345163] [2024-02-19 14:15:53,137 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-19 14:15:53,137 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-02-19 14:15:53,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-02-19 14:15:53,491 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-02-19 14:15:53,492 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-02-19 14:15:53,492 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1012345163] [2024-02-19 14:15:53,492 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1012345163] provided 1 perfect and 0 imperfect interpolant sequences [2024-02-19 14:15:53,492 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-02-19 14:15:53,492 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-02-19 14:15:53,493 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [755250143] [2024-02-19 14:15:53,493 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-02-19 14:15:53,493 INFO L584 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-02-19 14:15:53,493 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-02-19 14:15:53,494 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-02-19 14:15:53,494 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-02-19 14:15:53,494 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 22 out of 60 [2024-02-19 14:15:53,494 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 58 places, 80 transitions, 779 flow. Second operand has 5 states, 5 states have (on average 27.0) internal successors, (135), 5 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-02-19 14:15:53,495 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-02-19 14:15:53,495 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 22 of 60 [2024-02-19 14:15:53,495 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-02-19 14:15:53,689 INFO L124 PetriNetUnfolderBase]: 251/470 cut-off events. [2024-02-19 14:15:53,690 INFO L125 PetriNetUnfolderBase]: For 24/24 co-relation queries the response was YES. [2024-02-19 14:15:53,690 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2819 conditions, 470 events. 251/470 cut-off events. For 24/24 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 1751 event pairs, 11 based on Foata normal form. 8/475 useless extension candidates. Maximal degree in co-relation 2532. Up to 459 conditions per place. [2024-02-19 14:15:53,693 INFO L140 encePairwiseOnDemand]: 54/60 looper letters, 107 selfloop transitions, 24 changer transitions 11/149 dead transitions. [2024-02-19 14:15:53,693 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 62 places, 149 transitions, 1756 flow [2024-02-19 14:15:53,693 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-02-19 14:15:53,694 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-02-19 14:15:53,694 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 170 transitions. [2024-02-19 14:15:53,694 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.5666666666666667 [2024-02-19 14:15:53,695 INFO L308 CegarLoopForPetriNet]: 53 programPoint places, 9 predicate places. [2024-02-19 14:15:53,695 INFO L507 AbstractCegarLoop]: Abstraction has has 62 places, 149 transitions, 1756 flow [2024-02-19 14:15:53,695 INFO L508 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 27.0) internal successors, (135), 5 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-02-19 14:15:53,696 INFO L226 CegarLoopForPetriNet]: Found error trace [2024-02-19 14:15:53,696 INFO L234 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-02-19 14:15:53,696 WARN L489 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-02-19 14:15:53,696 INFO L432 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2024-02-19 14:15:53,696 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-02-19 14:15:53,697 INFO L85 PathProgramCache]: Analyzing trace with hash -285042241, now seen corresponding path program 2 times [2024-02-19 14:15:53,697 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-02-19 14:15:53,697 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1126498568] [2024-02-19 14:15:53,697 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-19 14:15:53,697 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-02-19 14:15:53,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-02-19 14:15:54,066 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-02-19 14:15:54,066 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-02-19 14:15:54,067 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1126498568] [2024-02-19 14:15:54,067 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1126498568] provided 1 perfect and 0 imperfect interpolant sequences [2024-02-19 14:15:54,067 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-02-19 14:15:54,067 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-02-19 14:15:54,067 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1836832174] [2024-02-19 14:15:54,067 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-02-19 14:15:54,068 INFO L584 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-02-19 14:15:54,068 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-02-19 14:15:54,068 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-02-19 14:15:54,069 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-02-19 14:15:54,069 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 22 out of 60 [2024-02-19 14:15:54,069 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 62 places, 149 transitions, 1756 flow. Second operand has 5 states, 5 states have (on average 27.0) internal successors, (135), 5 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-02-19 14:15:54,069 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-02-19 14:15:54,069 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 22 of 60 [2024-02-19 14:15:54,069 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-02-19 14:15:54,261 INFO L124 PetriNetUnfolderBase]: 281/528 cut-off events. [2024-02-19 14:15:54,261 INFO L125 PetriNetUnfolderBase]: For 52/52 co-relation queries the response was YES. [2024-02-19 14:15:54,262 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3687 conditions, 528 events. 281/528 cut-off events. For 52/52 co-relation queries the response was YES. Maximal size of possible extension queue 31. Compared 2030 event pairs, 4 based on Foata normal form. 8/533 useless extension candidates. Maximal degree in co-relation 3354. Up to 517 conditions per place. [2024-02-19 14:15:54,265 INFO L140 encePairwiseOnDemand]: 54/60 looper letters, 170 selfloop transitions, 46 changer transitions 11/234 dead transitions. [2024-02-19 14:15:54,266 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 66 places, 234 transitions, 3230 flow [2024-02-19 14:15:54,266 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-02-19 14:15:54,266 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-02-19 14:15:54,266 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 170 transitions. [2024-02-19 14:15:54,267 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.5666666666666667 [2024-02-19 14:15:54,267 INFO L308 CegarLoopForPetriNet]: 53 programPoint places, 13 predicate places. [2024-02-19 14:15:54,267 INFO L507 AbstractCegarLoop]: Abstraction has has 66 places, 234 transitions, 3230 flow [2024-02-19 14:15:54,268 INFO L508 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 27.0) internal successors, (135), 5 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-02-19 14:15:54,268 INFO L226 CegarLoopForPetriNet]: Found error trace [2024-02-19 14:15:54,268 INFO L234 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-02-19 14:15:54,268 WARN L489 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-02-19 14:15:54,268 INFO L432 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2024-02-19 14:15:54,269 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-02-19 14:15:54,269 INFO L85 PathProgramCache]: Analyzing trace with hash -310141915, now seen corresponding path program 3 times [2024-02-19 14:15:54,269 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-02-19 14:15:54,269 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1168986855] [2024-02-19 14:15:54,269 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-19 14:15:54,269 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-02-19 14:15:54,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-02-19 14:15:54,541 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-02-19 14:15:54,541 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-02-19 14:15:54,541 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1168986855] [2024-02-19 14:15:54,541 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1168986855] provided 1 perfect and 0 imperfect interpolant sequences [2024-02-19 14:15:54,541 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-02-19 14:15:54,542 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-02-19 14:15:54,542 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [403365006] [2024-02-19 14:15:54,542 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-02-19 14:15:54,542 INFO L584 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-02-19 14:15:54,542 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-02-19 14:15:54,543 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-02-19 14:15:54,543 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-02-19 14:15:54,565 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 60 [2024-02-19 14:15:54,566 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 66 places, 234 transitions, 3230 flow. Second operand has 7 states, 7 states have (on average 14.0) internal successors, (98), 7 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-02-19 14:15:54,566 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-02-19 14:15:54,566 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 60 [2024-02-19 14:15:54,566 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-02-19 14:15:54,914 INFO L124 PetriNetUnfolderBase]: 325/622 cut-off events. [2024-02-19 14:15:54,915 INFO L125 PetriNetUnfolderBase]: For 69/69 co-relation queries the response was YES. [2024-02-19 14:15:54,915 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4953 conditions, 622 events. 325/622 cut-off events. For 69/69 co-relation queries the response was YES. Maximal size of possible extension queue 36. Compared 2551 event pairs, 2 based on Foata normal form. 0/618 useless extension candidates. Maximal degree in co-relation 4515. Up to 607 conditions per place. [2024-02-19 14:15:54,920 INFO L140 encePairwiseOnDemand]: 43/60 looper letters, 200 selfloop transitions, 75 changer transitions 15/292 dead transitions. [2024-02-19 14:15:54,920 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 78 places, 292 transitions, 4605 flow [2024-02-19 14:15:54,920 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-02-19 14:15:54,920 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2024-02-19 14:15:54,921 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 225 transitions. [2024-02-19 14:15:54,921 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.28846153846153844 [2024-02-19 14:15:54,923 INFO L308 CegarLoopForPetriNet]: 53 programPoint places, 25 predicate places. [2024-02-19 14:15:54,923 INFO L507 AbstractCegarLoop]: Abstraction has has 78 places, 292 transitions, 4605 flow [2024-02-19 14:15:54,923 INFO L508 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.0) internal successors, (98), 7 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-02-19 14:15:54,923 INFO L226 CegarLoopForPetriNet]: Found error trace [2024-02-19 14:15:54,924 INFO L234 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-02-19 14:15:54,924 WARN L489 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-02-19 14:15:54,924 INFO L432 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2024-02-19 14:15:54,924 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-02-19 14:15:54,924 INFO L85 PathProgramCache]: Analyzing trace with hash 915678561, now seen corresponding path program 4 times [2024-02-19 14:15:54,924 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-02-19 14:15:54,925 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1226861283] [2024-02-19 14:15:54,925 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-19 14:15:54,925 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-02-19 14:15:54,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-02-19 14:15:55,221 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-02-19 14:15:55,222 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-02-19 14:15:55,222 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1226861283] [2024-02-19 14:15:55,222 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1226861283] provided 1 perfect and 0 imperfect interpolant sequences [2024-02-19 14:15:55,222 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-02-19 14:15:55,222 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-02-19 14:15:55,222 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [171736201] [2024-02-19 14:15:55,223 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-02-19 14:15:55,223 INFO L584 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-02-19 14:15:55,223 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-02-19 14:15:55,224 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-02-19 14:15:55,224 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-02-19 14:15:55,224 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 22 out of 60 [2024-02-19 14:15:55,224 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 78 places, 292 transitions, 4605 flow. Second operand has 5 states, 5 states have (on average 27.0) internal successors, (135), 5 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-02-19 14:15:55,225 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-02-19 14:15:55,225 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 22 of 60 [2024-02-19 14:15:55,225 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-02-19 14:15:55,458 INFO L124 PetriNetUnfolderBase]: 439/871 cut-off events. [2024-02-19 14:15:55,458 INFO L125 PetriNetUnfolderBase]: For 148/148 co-relation queries the response was YES. [2024-02-19 14:15:55,459 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7755 conditions, 871 events. 439/871 cut-off events. For 148/148 co-relation queries the response was YES. Maximal size of possible extension queue 52. Compared 4080 event pairs, 27 based on Foata normal form. 16/880 useless extension candidates. Maximal degree in co-relation 7128. Up to 846 conditions per place. [2024-02-19 14:15:55,490 INFO L140 encePairwiseOnDemand]: 54/60 looper letters, 316 selfloop transitions, 42 changer transitions 20/387 dead transitions. [2024-02-19 14:15:55,490 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 82 places, 387 transitions, 6889 flow [2024-02-19 14:15:55,491 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-02-19 14:15:55,491 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-02-19 14:15:55,491 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 182 transitions. [2024-02-19 14:15:55,492 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.6066666666666667 [2024-02-19 14:15:55,492 INFO L308 CegarLoopForPetriNet]: 53 programPoint places, 29 predicate places. [2024-02-19 14:15:55,492 INFO L507 AbstractCegarLoop]: Abstraction has has 82 places, 387 transitions, 6889 flow [2024-02-19 14:15:55,492 INFO L508 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 27.0) internal successors, (135), 5 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-02-19 14:15:55,492 INFO L226 CegarLoopForPetriNet]: Found error trace [2024-02-19 14:15:55,492 INFO L234 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-02-19 14:15:55,492 WARN L489 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-02-19 14:15:55,493 INFO L432 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2024-02-19 14:15:55,493 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-02-19 14:15:55,493 INFO L85 PathProgramCache]: Analyzing trace with hash 186862115, now seen corresponding path program 5 times [2024-02-19 14:15:55,493 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-02-19 14:15:55,493 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [992102639] [2024-02-19 14:15:55,493 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-19 14:15:55,493 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-02-19 14:15:55,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-02-19 14:15:55,724 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-02-19 14:15:55,724 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-02-19 14:15:55,724 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [992102639] [2024-02-19 14:15:55,725 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [992102639] provided 1 perfect and 0 imperfect interpolant sequences [2024-02-19 14:15:55,725 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-02-19 14:15:55,725 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-02-19 14:15:55,725 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2096203511] [2024-02-19 14:15:55,725 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-02-19 14:15:55,725 INFO L584 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-02-19 14:15:55,726 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-02-19 14:15:55,726 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-02-19 14:15:55,726 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-02-19 14:15:55,739 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 60 [2024-02-19 14:15:55,739 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 82 places, 387 transitions, 6889 flow. Second operand has 7 states, 7 states have (on average 14.0) internal successors, (98), 7 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-02-19 14:15:55,739 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-02-19 14:15:55,739 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 60 [2024-02-19 14:15:55,740 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-02-19 14:15:56,106 INFO L124 PetriNetUnfolderBase]: 439/867 cut-off events. [2024-02-19 14:15:56,106 INFO L125 PetriNetUnfolderBase]: For 149/149 co-relation queries the response was YES. [2024-02-19 14:15:56,107 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8606 conditions, 867 events. 439/867 cut-off events. For 149/149 co-relation queries the response was YES. Maximal size of possible extension queue 51. Compared 4015 event pairs, 10 based on Foata normal form. 0/862 useless extension candidates. Maximal degree in co-relation 7918. Up to 844 conditions per place. [2024-02-19 14:15:56,115 INFO L140 encePairwiseOnDemand]: 43/60 looper letters, 282 selfloop transitions, 100 changer transitions 20/403 dead transitions. [2024-02-19 14:15:56,115 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 92 places, 403 transitions, 8003 flow [2024-02-19 14:15:56,115 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-02-19 14:15:56,116 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2024-02-19 14:15:56,116 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 226 transitions. [2024-02-19 14:15:56,116 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.28974358974358977 [2024-02-19 14:15:56,117 INFO L308 CegarLoopForPetriNet]: 53 programPoint places, 39 predicate places. [2024-02-19 14:15:56,117 INFO L507 AbstractCegarLoop]: Abstraction has has 92 places, 403 transitions, 8003 flow [2024-02-19 14:15:56,117 INFO L508 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.0) internal successors, (98), 7 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-02-19 14:15:56,117 INFO L226 CegarLoopForPetriNet]: Found error trace [2024-02-19 14:15:56,118 INFO L234 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-02-19 14:15:56,118 WARN L489 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-02-19 14:15:56,118 INFO L432 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2024-02-19 14:15:56,118 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-02-19 14:15:56,118 INFO L85 PathProgramCache]: Analyzing trace with hash -1693591957, now seen corresponding path program 1 times [2024-02-19 14:15:56,118 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-02-19 14:15:56,119 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1423139053] [2024-02-19 14:15:56,119 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-19 14:15:56,119 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-02-19 14:15:56,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-02-19 14:15:56,819 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-02-19 14:15:56,820 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-02-19 14:15:56,821 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1423139053] [2024-02-19 14:15:56,821 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1423139053] provided 1 perfect and 0 imperfect interpolant sequences [2024-02-19 14:15:56,821 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-02-19 14:15:56,821 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-02-19 14:15:56,821 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [710805121] [2024-02-19 14:15:56,821 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-02-19 14:15:56,821 INFO L584 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-02-19 14:15:56,821 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-02-19 14:15:56,822 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-02-19 14:15:56,822 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2024-02-19 14:15:56,842 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 60 [2024-02-19 14:15:56,842 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 92 places, 403 transitions, 8003 flow. Second operand has 11 states, 11 states have (on average 12.727272727272727) internal successors, (140), 11 states have internal predecessors, (140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-02-19 14:15:56,842 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-02-19 14:15:56,842 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 60 [2024-02-19 14:15:56,842 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-02-19 14:15:57,387 INFO L124 PetriNetUnfolderBase]: 493/981 cut-off events. [2024-02-19 14:15:57,387 INFO L125 PetriNetUnfolderBase]: For 187/187 co-relation queries the response was YES. [2024-02-19 14:15:57,388 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10721 conditions, 981 events. 493/981 cut-off events. For 187/187 co-relation queries the response was YES. Maximal size of possible extension queue 61. Compared 4768 event pairs, 10 based on Foata normal form. 0/976 useless extension candidates. Maximal degree in co-relation 9890. Up to 955 conditions per place. [2024-02-19 14:15:57,427 INFO L140 encePairwiseOnDemand]: 45/60 looper letters, 318 selfloop transitions, 71 changer transitions 104/494 dead transitions. [2024-02-19 14:15:57,427 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 104 places, 494 transitions, 10812 flow [2024-02-19 14:15:57,427 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-02-19 14:15:57,428 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2024-02-19 14:15:57,428 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 227 transitions. [2024-02-19 14:15:57,428 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.29102564102564105 [2024-02-19 14:15:57,429 INFO L308 CegarLoopForPetriNet]: 53 programPoint places, 51 predicate places. [2024-02-19 14:15:57,429 INFO L507 AbstractCegarLoop]: Abstraction has has 104 places, 494 transitions, 10812 flow [2024-02-19 14:15:57,429 INFO L508 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 12.727272727272727) internal successors, (140), 11 states have internal predecessors, (140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-02-19 14:15:57,429 INFO L226 CegarLoopForPetriNet]: Found error trace [2024-02-19 14:15:57,429 INFO L234 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-02-19 14:15:57,429 WARN L489 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-02-19 14:15:57,429 INFO L432 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2024-02-19 14:15:57,430 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-02-19 14:15:57,430 INFO L85 PathProgramCache]: Analyzing trace with hash 1412361089, now seen corresponding path program 2 times [2024-02-19 14:15:57,430 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-02-19 14:15:57,430 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1608852004] [2024-02-19 14:15:57,430 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-19 14:15:57,430 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-02-19 14:15:57,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-02-19 14:15:57,974 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-02-19 14:15:57,974 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-02-19 14:15:57,975 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1608852004] [2024-02-19 14:15:57,975 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1608852004] provided 1 perfect and 0 imperfect interpolant sequences [2024-02-19 14:15:57,975 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-02-19 14:15:57,975 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-02-19 14:15:57,976 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1909103561] [2024-02-19 14:15:57,976 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-02-19 14:15:57,976 INFO L584 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-02-19 14:15:57,976 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-02-19 14:15:57,977 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-02-19 14:15:57,977 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2024-02-19 14:15:57,987 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 60 [2024-02-19 14:15:57,988 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 104 places, 494 transitions, 10812 flow. Second operand has 10 states, 10 states have (on average 13.0) internal successors, (130), 10 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-02-19 14:15:57,988 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-02-19 14:15:57,989 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 60 [2024-02-19 14:15:57,989 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-02-19 14:15:58,532 INFO L124 PetriNetUnfolderBase]: 493/979 cut-off events. [2024-02-19 14:15:58,532 INFO L125 PetriNetUnfolderBase]: For 194/194 co-relation queries the response was YES. [2024-02-19 14:15:58,533 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11689 conditions, 979 events. 493/979 cut-off events. For 194/194 co-relation queries the response was YES. Maximal size of possible extension queue 61. Compared 4726 event pairs, 4 based on Foata normal form. 0/975 useless extension candidates. Maximal degree in co-relation 10787. Up to 954 conditions per place. [2024-02-19 14:15:58,542 INFO L140 encePairwiseOnDemand]: 45/60 looper letters, 261 selfloop transitions, 55 changer transitions 191/508 dead transitions. [2024-02-19 14:15:58,542 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 117 places, 508 transitions, 12116 flow [2024-02-19 14:15:58,543 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-02-19 14:15:58,543 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2024-02-19 14:15:58,544 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 245 transitions. [2024-02-19 14:15:58,544 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.2916666666666667 [2024-02-19 14:15:58,545 INFO L308 CegarLoopForPetriNet]: 53 programPoint places, 64 predicate places. [2024-02-19 14:15:58,545 INFO L507 AbstractCegarLoop]: Abstraction has has 117 places, 508 transitions, 12116 flow [2024-02-19 14:15:58,545 INFO L508 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 13.0) internal successors, (130), 10 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-02-19 14:15:58,545 INFO L226 CegarLoopForPetriNet]: Found error trace [2024-02-19 14:15:58,545 INFO L234 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-02-19 14:15:58,545 WARN L489 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-02-19 14:15:58,545 INFO L432 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2024-02-19 14:15:58,546 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-02-19 14:15:58,546 INFO L85 PathProgramCache]: Analyzing trace with hash -1611263565, now seen corresponding path program 3 times [2024-02-19 14:15:58,546 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-02-19 14:15:58,546 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2092936576] [2024-02-19 14:15:58,546 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-19 14:15:58,547 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-02-19 14:15:58,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-02-19 14:15:59,123 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-02-19 14:15:59,123 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-02-19 14:15:59,123 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2092936576] [2024-02-19 14:15:59,124 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2092936576] provided 1 perfect and 0 imperfect interpolant sequences [2024-02-19 14:15:59,124 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-02-19 14:15:59,124 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-02-19 14:15:59,124 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1439700233] [2024-02-19 14:15:59,124 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-02-19 14:15:59,125 INFO L584 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-02-19 14:15:59,126 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-02-19 14:15:59,126 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-02-19 14:15:59,126 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2024-02-19 14:15:59,151 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 60 [2024-02-19 14:15:59,152 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 117 places, 508 transitions, 12116 flow. Second operand has 10 states, 10 states have (on average 13.0) internal successors, (130), 10 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-02-19 14:15:59,152 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-02-19 14:15:59,152 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 60 [2024-02-19 14:15:59,152 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-02-19 14:15:59,784 INFO L124 PetriNetUnfolderBase]: 493/977 cut-off events. [2024-02-19 14:15:59,784 INFO L125 PetriNetUnfolderBase]: For 196/196 co-relation queries the response was YES. [2024-02-19 14:15:59,786 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12655 conditions, 977 events. 493/977 cut-off events. For 196/196 co-relation queries the response was YES. Maximal size of possible extension queue 62. Compared 4716 event pairs, 10 based on Foata normal form. 0/974 useless extension candidates. Maximal degree in co-relation 11684. Up to 953 conditions per place. [2024-02-19 14:15:59,793 INFO L140 encePairwiseOnDemand]: 45/60 looper letters, 198 selfloop transitions, 48 changer transitions 263/510 dead transitions. [2024-02-19 14:15:59,794 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 130 places, 510 transitions, 13164 flow [2024-02-19 14:15:59,794 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-02-19 14:15:59,794 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2024-02-19 14:15:59,795 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 243 transitions. [2024-02-19 14:15:59,795 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.2892857142857143 [2024-02-19 14:15:59,796 INFO L308 CegarLoopForPetriNet]: 53 programPoint places, 77 predicate places. [2024-02-19 14:15:59,796 INFO L507 AbstractCegarLoop]: Abstraction has has 130 places, 510 transitions, 13164 flow [2024-02-19 14:15:59,796 INFO L508 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 13.0) internal successors, (130), 10 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-02-19 14:15:59,796 INFO L226 CegarLoopForPetriNet]: Found error trace [2024-02-19 14:15:59,797 INFO L234 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-02-19 14:15:59,797 WARN L489 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-02-19 14:15:59,797 INFO L432 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2024-02-19 14:15:59,797 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-02-19 14:15:59,798 INFO L85 PathProgramCache]: Analyzing trace with hash 1977145293, now seen corresponding path program 4 times [2024-02-19 14:15:59,798 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-02-19 14:15:59,798 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1181940075] [2024-02-19 14:15:59,798 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-19 14:15:59,798 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-02-19 14:15:59,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-02-19 14:16:00,507 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-02-19 14:16:00,508 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-02-19 14:16:00,508 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1181940075] [2024-02-19 14:16:00,508 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1181940075] provided 1 perfect and 0 imperfect interpolant sequences [2024-02-19 14:16:00,508 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-02-19 14:16:00,509 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-02-19 14:16:00,509 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2066684056] [2024-02-19 14:16:00,509 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-02-19 14:16:00,509 INFO L584 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-02-19 14:16:00,509 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-02-19 14:16:00,510 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-02-19 14:16:00,510 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2024-02-19 14:16:00,529 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 60 [2024-02-19 14:16:00,530 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 130 places, 510 transitions, 13164 flow. Second operand has 10 states, 10 states have (on average 13.0) internal successors, (130), 10 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-02-19 14:16:00,530 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-02-19 14:16:00,530 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 60 [2024-02-19 14:16:00,530 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-02-19 14:16:01,103 INFO L124 PetriNetUnfolderBase]: 541/1079 cut-off events. [2024-02-19 14:16:01,103 INFO L125 PetriNetUnfolderBase]: For 222/222 co-relation queries the response was YES. [2024-02-19 14:16:01,104 INFO L83 FinitePrefix]: Finished finitePrefix Result has 15053 conditions, 1079 events. 541/1079 cut-off events. For 222/222 co-relation queries the response was YES. Maximal size of possible extension queue 70. Compared 5407 event pairs, 2 based on Foata normal form. 0/1076 useless extension candidates. Maximal degree in co-relation 13913. Up to 1052 conditions per place. [2024-02-19 14:16:01,111 INFO L140 encePairwiseOnDemand]: 45/60 looper letters, 169 selfloop transitions, 38 changer transitions 365/573 dead transitions. [2024-02-19 14:16:01,111 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 143 places, 573 transitions, 15934 flow [2024-02-19 14:16:01,112 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-02-19 14:16:01,112 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2024-02-19 14:16:01,113 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 244 transitions. [2024-02-19 14:16:01,114 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.2904761904761905 [2024-02-19 14:16:01,114 INFO L308 CegarLoopForPetriNet]: 53 programPoint places, 90 predicate places. [2024-02-19 14:16:01,115 INFO L507 AbstractCegarLoop]: Abstraction has has 143 places, 573 transitions, 15934 flow [2024-02-19 14:16:01,115 INFO L508 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 13.0) internal successors, (130), 10 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-02-19 14:16:01,115 INFO L226 CegarLoopForPetriNet]: Found error trace [2024-02-19 14:16:01,115 INFO L234 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-02-19 14:16:01,115 WARN L489 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-02-19 14:16:01,115 INFO L432 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2024-02-19 14:16:01,116 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-02-19 14:16:01,116 INFO L85 PathProgramCache]: Analyzing trace with hash -116512981, now seen corresponding path program 5 times [2024-02-19 14:16:01,116 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-02-19 14:16:01,116 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [800060200] [2024-02-19 14:16:01,116 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-19 14:16:01,116 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-02-19 14:16:01,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-02-19 14:16:01,733 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-02-19 14:16:01,734 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-02-19 14:16:01,734 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [800060200] [2024-02-19 14:16:01,734 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [800060200] provided 1 perfect and 0 imperfect interpolant sequences [2024-02-19 14:16:01,734 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-02-19 14:16:01,734 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-02-19 14:16:01,734 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1103918242] [2024-02-19 14:16:01,734 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-02-19 14:16:01,735 INFO L584 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-02-19 14:16:01,735 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-02-19 14:16:01,736 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-02-19 14:16:01,736 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2024-02-19 14:16:01,759 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 60 [2024-02-19 14:16:01,760 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 143 places, 573 transitions, 15934 flow. Second operand has 10 states, 10 states have (on average 13.0) internal successors, (130), 10 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-02-19 14:16:01,760 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-02-19 14:16:01,760 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 60 [2024-02-19 14:16:01,760 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-02-19 14:16:02,301 INFO L124 PetriNetUnfolderBase]: 541/1077 cut-off events. [2024-02-19 14:16:02,301 INFO L125 PetriNetUnfolderBase]: For 234/234 co-relation queries the response was YES. [2024-02-19 14:16:02,302 INFO L83 FinitePrefix]: Finished finitePrefix Result has 16118 conditions, 1077 events. 541/1077 cut-off events. For 234/234 co-relation queries the response was YES. Maximal size of possible extension queue 69. Compared 5385 event pairs, 10 based on Foata normal form. 0/1075 useless extension candidates. Maximal degree in co-relation 14905. Up to 1051 conditions per place. [2024-02-19 14:16:02,309 INFO L140 encePairwiseOnDemand]: 45/60 looper letters, 117 selfloop transitions, 20 changer transitions 440/578 dead transitions. [2024-02-19 14:16:02,309 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 155 places, 578 transitions, 17234 flow [2024-02-19 14:16:02,310 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-02-19 14:16:02,310 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2024-02-19 14:16:02,310 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 221 transitions. [2024-02-19 14:16:02,311 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.2833333333333333 [2024-02-19 14:16:02,311 INFO L308 CegarLoopForPetriNet]: 53 programPoint places, 102 predicate places. [2024-02-19 14:16:02,311 INFO L507 AbstractCegarLoop]: Abstraction has has 155 places, 578 transitions, 17234 flow [2024-02-19 14:16:02,312 INFO L508 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 13.0) internal successors, (130), 10 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-02-19 14:16:02,312 INFO L226 CegarLoopForPetriNet]: Found error trace [2024-02-19 14:16:02,312 INFO L234 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-02-19 14:16:02,312 WARN L489 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-02-19 14:16:02,312 INFO L432 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2024-02-19 14:16:02,313 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-02-19 14:16:02,313 INFO L85 PathProgramCache]: Analyzing trace with hash 819269479, now seen corresponding path program 6 times [2024-02-19 14:16:02,313 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-02-19 14:16:02,313 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1438116061] [2024-02-19 14:16:02,313 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-19 14:16:02,313 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-02-19 14:16:02,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-02-19 14:16:02,590 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-02-19 14:16:02,591 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-02-19 14:16:02,591 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1438116061] [2024-02-19 14:16:02,591 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1438116061] provided 1 perfect and 0 imperfect interpolant sequences [2024-02-19 14:16:02,591 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-02-19 14:16:02,591 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-02-19 14:16:02,591 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [776931105] [2024-02-19 14:16:02,591 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-02-19 14:16:02,592 INFO L584 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-02-19 14:16:02,592 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-02-19 14:16:02,592 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-02-19 14:16:02,592 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-02-19 14:16:02,593 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 22 out of 60 [2024-02-19 14:16:02,593 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 155 places, 578 transitions, 17234 flow. Second operand has 5 states, 5 states have (on average 27.2) internal successors, (136), 5 states have internal predecessors, (136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-02-19 14:16:02,593 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-02-19 14:16:02,593 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 22 of 60 [2024-02-19 14:16:02,593 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-02-19 14:16:02,921 INFO L124 PetriNetUnfolderBase]: 424/886 cut-off events. [2024-02-19 14:16:02,921 INFO L125 PetriNetUnfolderBase]: For 310/310 co-relation queries the response was YES. [2024-02-19 14:16:02,922 INFO L83 FinitePrefix]: Finished finitePrefix Result has 14117 conditions, 886 events. 424/886 cut-off events. For 310/310 co-relation queries the response was YES. Maximal size of possible extension queue 51. Compared 4312 event pairs, 0 based on Foata normal form. 16/900 useless extension candidates. Maximal degree in co-relation 12838. Up to 860 conditions per place. [2024-02-19 14:16:02,926 INFO L140 encePairwiseOnDemand]: 54/60 looper letters, 67 selfloop transitions, 18 changer transitions 413/503 dead transitions. [2024-02-19 14:16:02,927 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 159 places, 503 transitions, 15952 flow [2024-02-19 14:16:02,927 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-02-19 14:16:02,927 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-02-19 14:16:02,929 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 182 transitions. [2024-02-19 14:16:02,929 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.6066666666666667 [2024-02-19 14:16:02,930 INFO L308 CegarLoopForPetriNet]: 53 programPoint places, 106 predicate places. [2024-02-19 14:16:02,930 INFO L507 AbstractCegarLoop]: Abstraction has has 159 places, 503 transitions, 15952 flow [2024-02-19 14:16:02,930 INFO L508 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 27.2) internal successors, (136), 5 states have internal predecessors, (136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-02-19 14:16:02,930 INFO L226 CegarLoopForPetriNet]: Found error trace [2024-02-19 14:16:02,930 INFO L234 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-02-19 14:16:02,931 WARN L489 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-02-19 14:16:02,931 INFO L432 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2024-02-19 14:16:02,931 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-02-19 14:16:02,931 INFO L85 PathProgramCache]: Analyzing trace with hash -2143056627, now seen corresponding path program 7 times [2024-02-19 14:16:02,931 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-02-19 14:16:02,932 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1062510648] [2024-02-19 14:16:02,932 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-19 14:16:02,932 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-02-19 14:16:02,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-02-19 14:16:03,477 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-02-19 14:16:03,478 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-02-19 14:16:03,478 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1062510648] [2024-02-19 14:16:03,479 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1062510648] provided 1 perfect and 0 imperfect interpolant sequences [2024-02-19 14:16:03,479 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-02-19 14:16:03,480 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-02-19 14:16:03,480 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1475374077] [2024-02-19 14:16:03,480 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-02-19 14:16:03,481 INFO L584 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-02-19 14:16:03,482 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-02-19 14:16:03,482 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-02-19 14:16:03,482 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2024-02-19 14:16:03,515 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 60 [2024-02-19 14:16:03,516 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 159 places, 503 transitions, 15952 flow. Second operand has 10 states, 10 states have (on average 13.0) internal successors, (130), 10 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-02-19 14:16:03,516 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-02-19 14:16:03,516 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 60 [2024-02-19 14:16:03,516 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-02-19 14:16:04,079 INFO L124 PetriNetUnfolderBase]: 424/884 cut-off events. [2024-02-19 14:16:04,079 INFO L125 PetriNetUnfolderBase]: For 330/330 co-relation queries the response was YES. [2024-02-19 14:16:04,080 INFO L83 FinitePrefix]: Finished finitePrefix Result has 14989 conditions, 884 events. 424/884 cut-off events. For 330/330 co-relation queries the response was YES. Maximal size of possible extension queue 51. Compared 4328 event pairs, 0 based on Foata normal form. 0/883 useless extension candidates. Maximal degree in co-relation 13639. Up to 859 conditions per place. [2024-02-19 14:16:04,084 INFO L140 encePairwiseOnDemand]: 45/60 looper letters, 0 selfloop transitions, 0 changer transitions 501/501 dead transitions. [2024-02-19 14:16:04,085 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 170 places, 501 transitions, 16928 flow [2024-02-19 14:16:04,085 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-02-19 14:16:04,086 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2024-02-19 14:16:04,086 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 240 transitions. [2024-02-19 14:16:04,086 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.2857142857142857 [2024-02-19 14:16:04,087 INFO L308 CegarLoopForPetriNet]: 53 programPoint places, 117 predicate places. [2024-02-19 14:16:04,087 INFO L507 AbstractCegarLoop]: Abstraction has has 170 places, 501 transitions, 16928 flow [2024-02-19 14:16:04,087 INFO L508 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 13.0) internal successors, (130), 10 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-02-19 14:16:04,090 INFO L818 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (7 of 8 remaining) [2024-02-19 14:16:04,090 INFO L818 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (6 of 8 remaining) [2024-02-19 14:16:04,091 INFO L818 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (5 of 8 remaining) [2024-02-19 14:16:04,092 INFO L818 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION (4 of 8 remaining) [2024-02-19 14:16:04,092 INFO L818 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (3 of 8 remaining) [2024-02-19 14:16:04,092 INFO L818 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION (2 of 8 remaining) [2024-02-19 14:16:04,092 INFO L818 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 8 remaining) [2024-02-19 14:16:04,092 INFO L818 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 8 remaining) [2024-02-19 14:16:04,092 WARN L489 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-02-19 14:16:04,430 INFO L644 CegarLoopForPetriNet]: Computed Owicki-Gries annotation of size 20472 in 337059966ns [2024-02-19 14:16:04,433 INFO L457 BasicCegarLoop]: Path program histogram: [7, 5, 1, 1, 1, 1] [2024-02-19 14:16:04,436 INFO L246 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-02-19 14:16:04,478 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.UnsupportedOperationException: Multiple instances of thread not yet supported: 37#my_callbackEXITtrue at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.concurrency.OwickiGriesUnpetrifier.computeFormulaMapping(OwickiGriesUnpetrifier.java:163) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.concurrency.OwickiGriesUnpetrifier.(OwickiGriesUnpetrifier.java:110) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseConcurrentProgram(TraceAbstractionStarter.java:263) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:191) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:172) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:124) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:167) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:150) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:127) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:233) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:227) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:144) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:106) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:319) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2024-02-19 14:16:04,483 INFO L158 Benchmark]: Toolchain (without parser) took 14766.86ms. Allocated memory was 58.7MB in the beginning and 696.3MB in the end (delta: 637.5MB). Free memory was 26.9MB in the beginning and 447.9MB in the end (delta: -420.9MB). Peak memory consumption was 216.0MB. Max. memory is 16.1GB. [2024-02-19 14:16:04,484 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 58.7MB. Free memory was 35.3MB in the beginning and 35.3MB in the end (delta: 50.4kB). There was no memory consumed. Max. memory is 16.1GB. [2024-02-19 14:16:04,484 INFO L158 Benchmark]: CACSL2BoogieTranslator took 738.52ms. Allocated memory was 58.7MB in the beginning and 86.0MB in the end (delta: 27.3MB). Free memory was 26.7MB in the beginning and 33.7MB in the end (delta: -7.1MB). Peak memory consumption was 22.0MB. Max. memory is 16.1GB. [2024-02-19 14:16:04,484 INFO L158 Benchmark]: Boogie Procedure Inliner took 47.71ms. Allocated memory is still 86.0MB. Free memory was 33.7MB in the beginning and 30.5MB in the end (delta: 3.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-02-19 14:16:04,484 INFO L158 Benchmark]: Boogie Preprocessor took 61.17ms. Allocated memory is still 86.0MB. Free memory was 30.5MB in the beginning and 57.2MB in the end (delta: -26.7MB). Peak memory consumption was 8.5MB. Max. memory is 16.1GB. [2024-02-19 14:16:04,484 INFO L158 Benchmark]: RCFGBuilder took 614.44ms. Allocated memory is still 86.0MB. Free memory was 57.2MB in the beginning and 40.2MB in the end (delta: 17.0MB). Peak memory consumption was 34.3MB. Max. memory is 16.1GB. [2024-02-19 14:16:04,486 INFO L158 Benchmark]: TraceAbstraction took 13300.96ms. Allocated memory was 86.0MB in the beginning and 696.3MB in the end (delta: 610.3MB). Free memory was 39.7MB in the beginning and 447.9MB in the end (delta: -408.2MB). Peak memory consumption was 201.5MB. Max. memory is 16.1GB. [2024-02-19 14:16:04,487 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 58.7MB. Free memory was 35.3MB in the beginning and 35.3MB in the end (delta: 50.4kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 738.52ms. Allocated memory was 58.7MB in the beginning and 86.0MB in the end (delta: 27.3MB). Free memory was 26.7MB in the beginning and 33.7MB in the end (delta: -7.1MB). Peak memory consumption was 22.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 47.71ms. Allocated memory is still 86.0MB. Free memory was 33.7MB in the beginning and 30.5MB in the end (delta: 3.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 61.17ms. Allocated memory is still 86.0MB. Free memory was 30.5MB in the beginning and 57.2MB in the end (delta: -26.7MB). Peak memory consumption was 8.5MB. Max. memory is 16.1GB. * RCFGBuilder took 614.44ms. Allocated memory is still 86.0MB. Free memory was 57.2MB in the beginning and 40.2MB in the end (delta: 17.0MB). Peak memory consumption was 34.3MB. Max. memory is 16.1GB. * TraceAbstraction took 13300.96ms. Allocated memory was 86.0MB in the beginning and 696.3MB in the end (delta: 610.3MB). Free memory was 39.7MB in the beginning and 447.9MB in the end (delta: -408.2MB). Peak memory consumption was 201.5MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: UnsupportedOperationException: Multiple instances of thread not yet supported: 37#my_callbackEXITtrue de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: UnsupportedOperationException: Multiple instances of thread not yet supported: 37#my_callbackEXITtrue: de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.concurrency.OwickiGriesUnpetrifier.computeFormulaMapping(OwickiGriesUnpetrifier.java:163) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2024-02-19 14:16:04,505 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../../../trunk/examples/svcomp/ldv-races/race-3_1-container_of-global.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 79b55bbc1c83a113dd61cfbd1c59324170026eea9fc3fed8c2e488e492b32e33 --traceabstraction.positions.where.we.compute.the.hoare.annotation All --- Real Ultimate output --- This is Ultimate 0.2.4-tmp.dk.owicki-witnesses-273a578-m [2024-02-19 14:16:06,537 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-02-19 14:16:06,606 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2024-02-19 14:16:06,614 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-02-19 14:16:06,615 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-02-19 14:16:06,643 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-02-19 14:16:06,643 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-02-19 14:16:06,644 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-02-19 14:16:06,644 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-02-19 14:16:06,647 INFO L153 SettingsManager]: * Use memory slicer=true [2024-02-19 14:16:06,648 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-02-19 14:16:06,648 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-02-19 14:16:06,648 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-02-19 14:16:06,649 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-02-19 14:16:06,650 INFO L153 SettingsManager]: * Use SBE=true [2024-02-19 14:16:06,650 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-02-19 14:16:06,650 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-02-19 14:16:06,650 INFO L153 SettingsManager]: * sizeof long=4 [2024-02-19 14:16:06,651 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-02-19 14:16:06,651 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-02-19 14:16:06,651 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-02-19 14:16:06,652 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-02-19 14:16:06,652 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-02-19 14:16:06,652 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-02-19 14:16:06,652 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-02-19 14:16:06,653 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-02-19 14:16:06,653 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-02-19 14:16:06,653 INFO L153 SettingsManager]: * sizeof long double=12 [2024-02-19 14:16:06,653 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-02-19 14:16:06,653 INFO L153 SettingsManager]: * Use constant arrays=true [2024-02-19 14:16:06,654 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-02-19 14:16:06,655 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-02-19 14:16:06,655 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-02-19 14:16:06,655 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-02-19 14:16:06,655 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-02-19 14:16:06,655 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-02-19 14:16:06,656 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-02-19 14:16:06,656 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-02-19 14:16:06,656 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2024-02-19 14:16:06,657 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-02-19 14:16:06,657 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-02-19 14:16:06,657 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-02-19 14:16:06,657 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2024-02-19 14:16:06,657 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-02-19 14:16:06,658 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-02-19 14:16:06,658 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2024-02-19 14:16:06,658 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 79b55bbc1c83a113dd61cfbd1c59324170026eea9fc3fed8c2e488e492b32e33 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Positions where we compute the Hoare Annotation -> All [2024-02-19 14:16:06,912 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-02-19 14:16:06,930 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-02-19 14:16:06,934 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-02-19 14:16:06,935 INFO L270 PluginConnector]: Initializing CDTParser... [2024-02-19 14:16:06,936 INFO L274 PluginConnector]: CDTParser initialized [2024-02-19 14:16:06,937 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-races/race-3_1-container_of-global.i [2024-02-19 14:16:08,134 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-02-19 14:16:08,408 INFO L384 CDTParser]: Found 1 translation units. [2024-02-19 14:16:08,409 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-races/race-3_1-container_of-global.i [2024-02-19 14:16:08,431 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d09189922/3bba2461947840579d5f38578b8af469/FLAG875dcca00 [2024-02-19 14:16:08,450 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d09189922/3bba2461947840579d5f38578b8af469 [2024-02-19 14:16:08,453 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-02-19 14:16:08,454 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-02-19 14:16:08,456 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-02-19 14:16:08,457 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-02-19 14:16:08,461 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-02-19 14:16:08,461 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.02 02:16:08" (1/1) ... [2024-02-19 14:16:08,462 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@fe60f5e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.02 02:16:08, skipping insertion in model container [2024-02-19 14:16:08,462 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.02 02:16:08" (1/1) ... [2024-02-19 14:16:08,525 INFO L177 MainTranslator]: Built tables and reachable declarations [2024-02-19 14:16:09,133 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/ldv-races/race-3_1-container_of-global.i[76084,76097] [2024-02-19 14:16:09,178 INFO L207 PostProcessor]: Analyzing one entry point: main [2024-02-19 14:16:09,190 INFO L199 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2024-02-19 14:16:09,197 INFO L177 MainTranslator]: Built tables and reachable declarations [2024-02-19 14:16:09,236 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/ldv-races/race-3_1-container_of-global.i[76084,76097] [2024-02-19 14:16:09,250 INFO L207 PostProcessor]: Analyzing one entry point: main [2024-02-19 14:16:09,253 INFO L202 MainTranslator]: Completed pre-run [2024-02-19 14:16:09,289 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/ldv-races/race-3_1-container_of-global.i[76084,76097] [2024-02-19 14:16:09,306 INFO L207 PostProcessor]: Analyzing one entry point: main [2024-02-19 14:16:09,399 INFO L206 MainTranslator]: Completed translation [2024-02-19 14:16:09,400 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.02 02:16:09 WrapperNode [2024-02-19 14:16:09,400 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-02-19 14:16:09,400 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-02-19 14:16:09,401 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-02-19 14:16:09,401 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-02-19 14:16:09,406 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.02 02:16:09" (1/1) ... [2024-02-19 14:16:09,424 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.02 02:16:09" (1/1) ... [2024-02-19 14:16:09,445 INFO L138 Inliner]: procedures = 487, calls = 47, calls flagged for inlining = 12, calls inlined = 12, statements flattened = 133 [2024-02-19 14:16:09,445 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-02-19 14:16:09,446 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-02-19 14:16:09,446 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-02-19 14:16:09,446 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-02-19 14:16:09,454 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.02 02:16:09" (1/1) ... [2024-02-19 14:16:09,454 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.02 02:16:09" (1/1) ... [2024-02-19 14:16:09,458 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.02 02:16:09" (1/1) ... [2024-02-19 14:16:09,476 INFO L175 MemorySlicer]: Split 23 memory accesses to 5 slices as follows [2, 13, 3, 3, 2]. 57 percent of accesses are in the largest equivalence class. The 4 initializations are split as follows [2, 0, 1, 1, 0]. The 10 writes are split as follows [0, 6, 1, 1, 2]. [2024-02-19 14:16:09,477 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.02 02:16:09" (1/1) ... [2024-02-19 14:16:09,477 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.02 02:16:09" (1/1) ... [2024-02-19 14:16:09,491 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.02 02:16:09" (1/1) ... [2024-02-19 14:16:09,493 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.02 02:16:09" (1/1) ... [2024-02-19 14:16:09,498 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.02 02:16:09" (1/1) ... [2024-02-19 14:16:09,500 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.02 02:16:09" (1/1) ... [2024-02-19 14:16:09,505 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-02-19 14:16:09,506 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-02-19 14:16:09,506 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-02-19 14:16:09,506 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-02-19 14:16:09,506 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.02 02:16:09" (1/1) ... [2024-02-19 14:16:09,510 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-02-19 14:16:09,534 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-02-19 14:16:09,569 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-02-19 14:16:09,645 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-02-19 14:16:09,667 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-02-19 14:16:09,667 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-02-19 14:16:09,667 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2024-02-19 14:16:09,667 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#2 [2024-02-19 14:16:09,667 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#3 [2024-02-19 14:16:09,668 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#4 [2024-02-19 14:16:09,668 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#0 [2024-02-19 14:16:09,668 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#1 [2024-02-19 14:16:09,668 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#2 [2024-02-19 14:16:09,668 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#3 [2024-02-19 14:16:09,668 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#4 [2024-02-19 14:16:09,669 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-02-19 14:16:09,669 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-02-19 14:16:09,669 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-02-19 14:16:09,669 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-02-19 14:16:09,669 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-02-19 14:16:09,669 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2024-02-19 14:16:09,669 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2024-02-19 14:16:09,669 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-02-19 14:16:09,670 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-02-19 14:16:09,670 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#0 [2024-02-19 14:16:09,670 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#1 [2024-02-19 14:16:09,670 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#2 [2024-02-19 14:16:09,670 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#3 [2024-02-19 14:16:09,670 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#4 [2024-02-19 14:16:09,670 INFO L130 BoogieDeclarations]: Found specification of procedure my_callback [2024-02-19 14:16:09,670 INFO L138 BoogieDeclarations]: Found implementation of procedure my_callback [2024-02-19 14:16:09,671 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-02-19 14:16:09,671 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#0 [2024-02-19 14:16:09,671 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#1 [2024-02-19 14:16:09,671 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#2 [2024-02-19 14:16:09,671 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#3 [2024-02-19 14:16:09,671 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#4 [2024-02-19 14:16:09,671 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-02-19 14:16:09,673 WARN L214 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2024-02-19 14:16:09,988 INFO L244 CfgBuilder]: Building ICFG [2024-02-19 14:16:09,990 INFO L270 CfgBuilder]: Building CFG for each procedure with an implementation [2024-02-19 14:16:10,286 INFO L289 CfgBuilder]: Ommited future-live optimization because the input is a concurrent program. [2024-02-19 14:16:10,287 INFO L293 CfgBuilder]: Performing block encoding [2024-02-19 14:16:10,392 INFO L315 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-02-19 14:16:10,393 INFO L320 CfgBuilder]: Removed 0 assume(true) statements. [2024-02-19 14:16:10,393 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.02 02:16:10 BoogieIcfgContainer [2024-02-19 14:16:10,393 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-02-19 14:16:10,395 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-02-19 14:16:10,395 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-02-19 14:16:10,397 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-02-19 14:16:10,412 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.02 02:16:08" (1/3) ... [2024-02-19 14:16:10,413 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4b49beb7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.02 02:16:10, skipping insertion in model container [2024-02-19 14:16:10,413 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.02 02:16:09" (2/3) ... [2024-02-19 14:16:10,413 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4b49beb7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.02 02:16:10, skipping insertion in model container [2024-02-19 14:16:10,413 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.02 02:16:10" (3/3) ... [2024-02-19 14:16:10,414 INFO L112 eAbstractionObserver]: Analyzing ICFG race-3_1-container_of-global.i [2024-02-19 14:16:10,428 INFO L221 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-02-19 14:16:10,428 INFO L180 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2024-02-19 14:16:10,428 INFO L631 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-02-19 14:16:10,465 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-02-19 14:16:10,489 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 58 places, 60 transitions, 134 flow [2024-02-19 14:16:10,512 INFO L124 PetriNetUnfolderBase]: 10/73 cut-off events. [2024-02-19 14:16:10,513 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-02-19 14:16:10,516 INFO L83 FinitePrefix]: Finished finitePrefix Result has 82 conditions, 73 events. 10/73 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 145 event pairs, 0 based on Foata normal form. 0/53 useless extension candidates. Maximal degree in co-relation 39. Up to 4 conditions per place. [2024-02-19 14:16:10,516 INFO L82 GeneralOperation]: Start removeDead. Operand has 58 places, 60 transitions, 134 flow [2024-02-19 14:16:10,519 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 53 places, 53 transitions, 118 flow [2024-02-19 14:16:10,525 INFO L368 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-02-19 14:16:10,530 INFO L369 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=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=All, 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;@40cb918c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-02-19 14:16:10,531 INFO L370 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2024-02-19 14:16:10,534 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-02-19 14:16:10,534 INFO L124 PetriNetUnfolderBase]: 1/5 cut-off events. [2024-02-19 14:16:10,534 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-02-19 14:16:10,534 INFO L226 CegarLoopForPetriNet]: Found error trace [2024-02-19 14:16:10,535 INFO L234 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2024-02-19 14:16:10,535 INFO L432 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2024-02-19 14:16:10,539 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-02-19 14:16:10,539 INFO L85 PathProgramCache]: Analyzing trace with hash 13467626, now seen corresponding path program 1 times [2024-02-19 14:16:10,549 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-02-19 14:16:10,550 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2018341954] [2024-02-19 14:16:10,550 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-19 14:16:10,550 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-02-19 14:16:10,550 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-02-19 14:16:10,552 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-02-19 14:16:10,579 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2024-02-19 14:16:10,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-02-19 14:16:10,726 INFO L262 TraceCheckSpWp]: Trace formula consists of 86 conjuncts, 10 conjunts are in the unsatisfiable core [2024-02-19 14:16:10,730 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-02-19 14:16:10,854 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-02-19 14:16:10,855 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-02-19 14:16:10,855 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-02-19 14:16:10,855 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2018341954] [2024-02-19 14:16:10,856 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2018341954] provided 1 perfect and 0 imperfect interpolant sequences [2024-02-19 14:16:10,856 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-02-19 14:16:10,856 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-02-19 14:16:10,857 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [378856704] [2024-02-19 14:16:10,858 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-02-19 14:16:10,863 INFO L584 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-02-19 14:16:10,879 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-02-19 14:16:10,896 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-02-19 14:16:10,896 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-02-19 14:16:10,911 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 16 out of 60 [2024-02-19 14:16:10,913 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 53 places, 53 transitions, 118 flow. Second operand has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-02-19 14:16:10,914 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-02-19 14:16:10,914 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 16 of 60 [2024-02-19 14:16:10,914 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-02-19 14:16:11,556 INFO L124 PetriNetUnfolderBase]: 406/772 cut-off events. [2024-02-19 14:16:11,557 INFO L125 PetriNetUnfolderBase]: For 16/16 co-relation queries the response was YES. [2024-02-19 14:16:11,559 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1496 conditions, 772 events. 406/772 cut-off events. For 16/16 co-relation queries the response was YES. Maximal size of possible extension queue 45. Compared 3414 event pairs, 345 based on Foata normal form. 41/812 useless extension candidates. Maximal degree in co-relation 1391. Up to 602 conditions per place. [2024-02-19 14:16:11,563 INFO L140 encePairwiseOnDemand]: 51/60 looper letters, 40 selfloop transitions, 4 changer transitions 0/54 dead transitions. [2024-02-19 14:16:11,563 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 51 places, 54 transitions, 208 flow [2024-02-19 14:16:11,564 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-02-19 14:16:11,566 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-02-19 14:16:11,571 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 97 transitions. [2024-02-19 14:16:11,572 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.5388888888888889 [2024-02-19 14:16:11,574 INFO L308 CegarLoopForPetriNet]: 53 programPoint places, -2 predicate places. [2024-02-19 14:16:11,575 INFO L507 AbstractCegarLoop]: Abstraction has has 51 places, 54 transitions, 208 flow [2024-02-19 14:16:11,575 INFO L508 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-02-19 14:16:11,575 INFO L226 CegarLoopForPetriNet]: Found error trace [2024-02-19 14:16:11,575 INFO L234 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2024-02-19 14:16:11,584 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2024-02-19 14:16:11,780 WARN L489 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-02-19 14:16:11,781 INFO L432 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2024-02-19 14:16:11,781 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-02-19 14:16:11,782 INFO L85 PathProgramCache]: Analyzing trace with hash 57520045, now seen corresponding path program 1 times [2024-02-19 14:16:11,782 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-02-19 14:16:11,782 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [969923396] [2024-02-19 14:16:11,782 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-19 14:16:11,782 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-02-19 14:16:11,783 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-02-19 14:16:11,785 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-02-19 14:16:11,788 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2024-02-19 14:16:11,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-02-19 14:16:11,963 INFO L262 TraceCheckSpWp]: Trace formula consists of 90 conjuncts, 10 conjunts are in the unsatisfiable core [2024-02-19 14:16:11,965 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-02-19 14:16:11,978 INFO L173 IndexEqualityManager]: detected equality via solver [2024-02-19 14:16:11,979 INFO L173 IndexEqualityManager]: detected equality via solver [2024-02-19 14:16:11,979 INFO L173 IndexEqualityManager]: detected equality via solver [2024-02-19 14:16:12,002 INFO L378 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 76 treesize of output 41 [2024-02-19 14:16:12,060 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-02-19 14:16:12,061 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 117 treesize of output 45 [2024-02-19 14:16:12,070 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-02-19 14:16:12,071 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-02-19 14:16:12,071 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-02-19 14:16:12,071 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [969923396] [2024-02-19 14:16:12,071 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [969923396] provided 1 perfect and 0 imperfect interpolant sequences [2024-02-19 14:16:12,072 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-02-19 14:16:12,072 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-02-19 14:16:12,072 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1070720948] [2024-02-19 14:16:12,072 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-02-19 14:16:12,073 INFO L584 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-02-19 14:16:12,073 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-02-19 14:16:12,073 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-02-19 14:16:12,074 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-02-19 14:16:12,104 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 16 out of 60 [2024-02-19 14:16:12,105 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 51 places, 54 transitions, 208 flow. Second operand has 4 states, 4 states have (on average 17.0) internal successors, (68), 4 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-02-19 14:16:12,105 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-02-19 14:16:12,105 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 16 of 60 [2024-02-19 14:16:12,105 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-02-19 14:16:13,375 INFO L124 PetriNetUnfolderBase]: 406/761 cut-off events. [2024-02-19 14:16:13,375 INFO L125 PetriNetUnfolderBase]: For 68/68 co-relation queries the response was YES. [2024-02-19 14:16:13,378 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2183 conditions, 761 events. 406/761 cut-off events. For 68/68 co-relation queries the response was YES. Maximal size of possible extension queue 44. Compared 3361 event pairs, 155 based on Foata normal form. 1/761 useless extension candidates. Maximal degree in co-relation 2040. Up to 601 conditions per place. [2024-02-19 14:16:13,381 INFO L140 encePairwiseOnDemand]: 52/60 looper letters, 46 selfloop transitions, 7 changer transitions 0/62 dead transitions. [2024-02-19 14:16:13,381 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 53 places, 62 transitions, 351 flow [2024-02-19 14:16:13,382 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-02-19 14:16:13,382 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-02-19 14:16:13,385 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 134 transitions. [2024-02-19 14:16:13,386 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.44666666666666666 [2024-02-19 14:16:13,387 INFO L308 CegarLoopForPetriNet]: 53 programPoint places, 0 predicate places. [2024-02-19 14:16:13,387 INFO L507 AbstractCegarLoop]: Abstraction has has 53 places, 62 transitions, 351 flow [2024-02-19 14:16:13,387 INFO L508 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.0) internal successors, (68), 4 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-02-19 14:16:13,387 INFO L226 CegarLoopForPetriNet]: Found error trace [2024-02-19 14:16:13,388 INFO L234 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-02-19 14:16:13,394 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2024-02-19 14:16:13,594 WARN L489 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-02-19 14:16:13,595 INFO L432 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2024-02-19 14:16:13,596 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-02-19 14:16:13,596 INFO L85 PathProgramCache]: Analyzing trace with hash 1752771922, now seen corresponding path program 1 times [2024-02-19 14:16:13,598 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-02-19 14:16:13,599 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1527967217] [2024-02-19 14:16:13,599 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-19 14:16:13,599 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-02-19 14:16:13,600 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-02-19 14:16:13,601 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-02-19 14:16:13,620 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2024-02-19 14:16:13,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-02-19 14:16:13,821 INFO L262 TraceCheckSpWp]: Trace formula consists of 137 conjuncts, 10 conjunts are in the unsatisfiable core [2024-02-19 14:16:13,823 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-02-19 14:16:13,832 INFO L173 IndexEqualityManager]: detected equality via solver [2024-02-19 14:16:13,833 INFO L173 IndexEqualityManager]: detected equality via solver [2024-02-19 14:16:13,834 INFO L173 IndexEqualityManager]: detected equality via solver [2024-02-19 14:16:13,840 INFO L378 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 71 treesize of output 51 [2024-02-19 14:16:13,921 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-02-19 14:16:13,921 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 131 treesize of output 53 [2024-02-19 14:16:13,935 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-02-19 14:16:13,936 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-02-19 14:16:13,936 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-02-19 14:16:13,936 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1527967217] [2024-02-19 14:16:13,936 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1527967217] provided 1 perfect and 0 imperfect interpolant sequences [2024-02-19 14:16:13,936 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-02-19 14:16:13,936 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-02-19 14:16:13,937 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1146129191] [2024-02-19 14:16:13,937 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-02-19 14:16:13,937 INFO L584 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-02-19 14:16:13,937 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-02-19 14:16:13,938 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-02-19 14:16:13,938 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-02-19 14:16:13,960 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 16 out of 60 [2024-02-19 14:16:13,961 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 53 places, 62 transitions, 351 flow. Second operand has 4 states, 4 states have (on average 18.25) internal successors, (73), 4 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-02-19 14:16:13,961 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-02-19 14:16:13,961 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 16 of 60 [2024-02-19 14:16:13,961 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-02-19 14:16:15,212 INFO L124 PetriNetUnfolderBase]: 460/903 cut-off events. [2024-02-19 14:16:15,212 INFO L125 PetriNetUnfolderBase]: For 170/170 co-relation queries the response was YES. [2024-02-19 14:16:15,213 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3399 conditions, 903 events. 460/903 cut-off events. For 170/170 co-relation queries the response was YES. Maximal size of possible extension queue 57. Compared 4512 event pairs, 119 based on Foata normal form. 64/966 useless extension candidates. Maximal degree in co-relation 3220. Up to 684 conditions per place. [2024-02-19 14:16:15,216 INFO L140 encePairwiseOnDemand]: 53/60 looper letters, 55 selfloop transitions, 6 changer transitions 24/93 dead transitions. [2024-02-19 14:16:15,216 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 56 places, 93 transitions, 705 flow [2024-02-19 14:16:15,217 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-02-19 14:16:15,218 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-02-19 14:16:15,220 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 120 transitions. [2024-02-19 14:16:15,221 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.5 [2024-02-19 14:16:15,222 INFO L308 CegarLoopForPetriNet]: 53 programPoint places, 3 predicate places. [2024-02-19 14:16:15,222 INFO L507 AbstractCegarLoop]: Abstraction has has 56 places, 93 transitions, 705 flow [2024-02-19 14:16:15,222 INFO L508 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.25) internal successors, (73), 4 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-02-19 14:16:15,222 INFO L226 CegarLoopForPetriNet]: Found error trace [2024-02-19 14:16:15,222 INFO L234 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-02-19 14:16:15,232 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2024-02-19 14:16:15,430 WARN L489 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-02-19 14:16:15,431 INFO L432 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2024-02-19 14:16:15,433 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-02-19 14:16:15,434 INFO L85 PathProgramCache]: Analyzing trace with hash -1745290553, now seen corresponding path program 1 times [2024-02-19 14:16:15,434 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-02-19 14:16:15,435 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [818963054] [2024-02-19 14:16:15,435 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-19 14:16:15,435 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-02-19 14:16:15,435 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-02-19 14:16:15,436 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-02-19 14:16:15,439 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2024-02-19 14:16:15,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-02-19 14:16:15,634 INFO L262 TraceCheckSpWp]: Trace formula consists of 231 conjuncts, 3 conjunts are in the unsatisfiable core [2024-02-19 14:16:15,635 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-02-19 14:16:15,646 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-02-19 14:16:15,646 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-02-19 14:16:15,646 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-02-19 14:16:15,646 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [818963054] [2024-02-19 14:16:15,647 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [818963054] provided 1 perfect and 0 imperfect interpolant sequences [2024-02-19 14:16:15,647 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-02-19 14:16:15,647 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-02-19 14:16:15,647 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [955142526] [2024-02-19 14:16:15,647 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-02-19 14:16:15,647 INFO L584 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-02-19 14:16:15,648 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-02-19 14:16:15,648 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-02-19 14:16:15,648 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-02-19 14:16:15,650 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 21 out of 60 [2024-02-19 14:16:15,650 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 56 places, 93 transitions, 705 flow. Second operand has 4 states, 4 states have (on average 25.0) internal successors, (100), 4 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-02-19 14:16:15,651 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-02-19 14:16:15,651 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 21 of 60 [2024-02-19 14:16:15,651 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-02-19 14:16:16,757 INFO L124 PetriNetUnfolderBase]: 225/420 cut-off events. [2024-02-19 14:16:16,758 INFO L125 PetriNetUnfolderBase]: For 52/52 co-relation queries the response was YES. [2024-02-19 14:16:16,758 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2091 conditions, 420 events. 225/420 cut-off events. For 52/52 co-relation queries the response was YES. Maximal size of possible extension queue 23. Compared 1435 event pairs, 28 based on Foata normal form. 36/455 useless extension candidates. Maximal degree in co-relation 1862. Up to 409 conditions per place. [2024-02-19 14:16:16,760 INFO L140 encePairwiseOnDemand]: 56/60 looper letters, 58 selfloop transitions, 4 changer transitions 11/80 dead transitions. [2024-02-19 14:16:16,760 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 58 places, 80 transitions, 749 flow [2024-02-19 14:16:16,761 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-02-19 14:16:16,761 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-02-19 14:16:16,762 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 161 transitions. [2024-02-19 14:16:16,762 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.5366666666666666 [2024-02-19 14:16:16,762 INFO L308 CegarLoopForPetriNet]: 53 programPoint places, 5 predicate places. [2024-02-19 14:16:16,762 INFO L507 AbstractCegarLoop]: Abstraction has has 58 places, 80 transitions, 749 flow [2024-02-19 14:16:16,762 INFO L508 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 25.0) internal successors, (100), 4 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-02-19 14:16:16,763 INFO L226 CegarLoopForPetriNet]: Found error trace [2024-02-19 14:16:16,763 INFO L234 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-02-19 14:16:16,777 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2024-02-19 14:16:16,968 WARN L489 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-02-19 14:16:16,969 INFO L432 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2024-02-19 14:16:16,969 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-02-19 14:16:16,969 INFO L85 PathProgramCache]: Analyzing trace with hash 1019567981, now seen corresponding path program 1 times [2024-02-19 14:16:16,970 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-02-19 14:16:16,970 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [547294542] [2024-02-19 14:16:16,970 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-19 14:16:16,970 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-02-19 14:16:16,970 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-02-19 14:16:16,972 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-02-19 14:16:16,973 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2024-02-19 14:16:17,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-02-19 14:16:17,266 INFO L262 TraceCheckSpWp]: Trace formula consists of 291 conjuncts, 11 conjunts are in the unsatisfiable core [2024-02-19 14:16:17,269 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-02-19 14:16:17,325 INFO L378 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 9 [2024-02-19 14:16:17,367 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-02-19 14:16:17,367 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-02-19 14:16:17,368 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-02-19 14:16:17,368 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [547294542] [2024-02-19 14:16:17,368 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [547294542] provided 1 perfect and 0 imperfect interpolant sequences [2024-02-19 14:16:17,368 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-02-19 14:16:17,368 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-02-19 14:16:17,368 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1074703583] [2024-02-19 14:16:17,368 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-02-19 14:16:17,369 INFO L584 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-02-19 14:16:17,369 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-02-19 14:16:17,369 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-02-19 14:16:17,369 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-02-19 14:16:17,370 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 22 out of 60 [2024-02-19 14:16:17,370 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 58 places, 80 transitions, 749 flow. Second operand has 7 states, 7 states have (on average 25.571428571428573) internal successors, (179), 7 states have internal predecessors, (179), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-02-19 14:16:17,370 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-02-19 14:16:17,370 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 22 of 60 [2024-02-19 14:16:17,370 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-02-19 14:16:19,511 INFO L124 PetriNetUnfolderBase]: 251/470 cut-off events. [2024-02-19 14:16:19,511 INFO L125 PetriNetUnfolderBase]: For 78/78 co-relation queries the response was YES. [2024-02-19 14:16:19,512 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2801 conditions, 470 events. 251/470 cut-off events. For 78/78 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 1739 event pairs, 11 based on Foata normal form. 8/477 useless extension candidates. Maximal degree in co-relation 2532. Up to 459 conditions per place. [2024-02-19 14:16:19,514 INFO L140 encePairwiseOnDemand]: 51/60 looper letters, 97 selfloop transitions, 34 changer transitions 11/149 dead transitions. [2024-02-19 14:16:19,515 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 68 places, 149 transitions, 1726 flow [2024-02-19 14:16:19,524 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-02-19 14:16:19,524 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2024-02-19 14:16:19,525 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 329 transitions. [2024-02-19 14:16:19,525 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.4984848484848485 [2024-02-19 14:16:19,528 INFO L308 CegarLoopForPetriNet]: 53 programPoint places, 15 predicate places. [2024-02-19 14:16:19,528 INFO L507 AbstractCegarLoop]: Abstraction has has 68 places, 149 transitions, 1726 flow [2024-02-19 14:16:19,528 INFO L508 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 25.571428571428573) internal successors, (179), 7 states have internal predecessors, (179), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-02-19 14:16:19,528 INFO L226 CegarLoopForPetriNet]: Found error trace [2024-02-19 14:16:19,528 INFO L234 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-02-19 14:16:19,539 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Ended with exit code 0 [2024-02-19 14:16:19,740 WARN L489 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-02-19 14:16:19,740 INFO L432 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2024-02-19 14:16:19,741 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-02-19 14:16:19,741 INFO L85 PathProgramCache]: Analyzing trace with hash -1145544517, now seen corresponding path program 2 times [2024-02-19 14:16:19,741 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-02-19 14:16:19,742 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1068222421] [2024-02-19 14:16:19,742 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-02-19 14:16:19,742 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-02-19 14:16:19,742 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-02-19 14:16:19,743 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-02-19 14:16:19,744 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2024-02-19 14:16:20,032 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-02-19 14:16:20,032 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-02-19 14:16:20,049 INFO L262 TraceCheckSpWp]: Trace formula consists of 291 conjuncts, 11 conjunts are in the unsatisfiable core [2024-02-19 14:16:20,051 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-02-19 14:16:20,133 INFO L378 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 9 [2024-02-19 14:16:20,170 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-02-19 14:16:20,170 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-02-19 14:16:20,170 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-02-19 14:16:20,170 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1068222421] [2024-02-19 14:16:20,171 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1068222421] provided 1 perfect and 0 imperfect interpolant sequences [2024-02-19 14:16:20,171 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-02-19 14:16:20,171 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-02-19 14:16:20,171 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1306780333] [2024-02-19 14:16:20,171 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-02-19 14:16:20,171 INFO L584 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-02-19 14:16:20,172 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-02-19 14:16:20,172 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-02-19 14:16:20,172 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-02-19 14:16:20,172 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 22 out of 60 [2024-02-19 14:16:20,173 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 68 places, 149 transitions, 1726 flow. Second operand has 7 states, 7 states have (on average 25.571428571428573) internal successors, (179), 7 states have internal predecessors, (179), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-02-19 14:16:20,173 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-02-19 14:16:20,173 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 22 of 60 [2024-02-19 14:16:20,173 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-02-19 14:16:22,215 INFO L124 PetriNetUnfolderBase]: 281/528 cut-off events. [2024-02-19 14:16:22,216 INFO L125 PetriNetUnfolderBase]: For 124/124 co-relation queries the response was YES. [2024-02-19 14:16:22,216 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3669 conditions, 528 events. 281/528 cut-off events. For 124/124 co-relation queries the response was YES. Maximal size of possible extension queue 33. Compared 2042 event pairs, 5 based on Foata normal form. 8/535 useless extension candidates. Maximal degree in co-relation 3354. Up to 517 conditions per place. [2024-02-19 14:16:22,220 INFO L140 encePairwiseOnDemand]: 51/60 looper letters, 147 selfloop transitions, 69 changer transitions 11/234 dead transitions. [2024-02-19 14:16:22,220 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 78 places, 234 transitions, 3200 flow [2024-02-19 14:16:22,221 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-02-19 14:16:22,221 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2024-02-19 14:16:22,222 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 329 transitions. [2024-02-19 14:16:22,223 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.4984848484848485 [2024-02-19 14:16:22,225 INFO L308 CegarLoopForPetriNet]: 53 programPoint places, 25 predicate places. [2024-02-19 14:16:22,226 INFO L507 AbstractCegarLoop]: Abstraction has has 78 places, 234 transitions, 3200 flow [2024-02-19 14:16:22,226 INFO L508 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 25.571428571428573) internal successors, (179), 7 states have internal predecessors, (179), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-02-19 14:16:22,226 INFO L226 CegarLoopForPetriNet]: Found error trace [2024-02-19 14:16:22,226 INFO L234 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-02-19 14:16:22,236 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Ended with exit code 0 [2024-02-19 14:16:22,434 WARN L489 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-02-19 14:16:22,434 INFO L432 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2024-02-19 14:16:22,435 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-02-19 14:16:22,435 INFO L85 PathProgramCache]: Analyzing trace with hash -1170644191, now seen corresponding path program 3 times [2024-02-19 14:16:22,435 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-02-19 14:16:22,435 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1754460062] [2024-02-19 14:16:22,435 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-02-19 14:16:22,436 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-02-19 14:16:22,436 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-02-19 14:16:22,437 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-02-19 14:16:22,438 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2024-02-19 14:16:22,796 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2024-02-19 14:16:22,796 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-02-19 14:16:22,809 INFO L262 TraceCheckSpWp]: Trace formula consists of 291 conjuncts, 18 conjunts are in the unsatisfiable core [2024-02-19 14:16:22,811 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-02-19 14:16:23,022 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-02-19 14:16:23,024 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-02-19 14:16:23,024 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-02-19 14:16:23,025 INFO L173 IndexEqualityManager]: detected equality via solver [2024-02-19 14:16:23,025 INFO L173 IndexEqualityManager]: detected equality via solver [2024-02-19 14:16:23,030 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-02-19 14:16:23,030 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 29 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 94 treesize of output 65 [2024-02-19 14:16:23,195 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-02-19 14:16:23,196 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 15 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 125 treesize of output 69 [2024-02-19 14:16:23,218 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-02-19 14:16:23,218 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-02-19 14:16:23,218 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-02-19 14:16:23,218 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1754460062] [2024-02-19 14:16:23,219 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1754460062] provided 1 perfect and 0 imperfect interpolant sequences [2024-02-19 14:16:23,219 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-02-19 14:16:23,219 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-02-19 14:16:23,219 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [145738809] [2024-02-19 14:16:23,219 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-02-19 14:16:23,220 INFO L584 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-02-19 14:16:23,220 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-02-19 14:16:23,220 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-02-19 14:16:23,220 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-02-19 14:16:23,343 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 16 out of 60 [2024-02-19 14:16:23,343 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 78 places, 234 transitions, 3200 flow. Second operand has 7 states, 7 states have (on average 19.714285714285715) internal successors, (138), 7 states have internal predecessors, (138), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-02-19 14:16:23,343 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-02-19 14:16:23,343 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 16 of 60 [2024-02-19 14:16:23,343 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-02-19 14:16:27,236 INFO L124 PetriNetUnfolderBase]: 325/622 cut-off events. [2024-02-19 14:16:27,236 INFO L125 PetriNetUnfolderBase]: For 217/217 co-relation queries the response was YES. [2024-02-19 14:16:27,237 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4921 conditions, 622 events. 325/622 cut-off events. For 217/217 co-relation queries the response was YES. Maximal size of possible extension queue 38. Compared 2527 event pairs, 15 based on Foata normal form. 1/622 useless extension candidates. Maximal degree in co-relation 4515. Up to 607 conditions per place. [2024-02-19 14:16:27,241 INFO L140 encePairwiseOnDemand]: 48/60 looper letters, 200 selfloop transitions, 71 changer transitions 13/289 dead transitions. [2024-02-19 14:16:27,241 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 90 places, 289 transitions, 4535 flow [2024-02-19 14:16:27,244 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-02-19 14:16:27,244 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2024-02-19 14:16:27,245 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 295 transitions. [2024-02-19 14:16:27,245 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.3782051282051282 [2024-02-19 14:16:27,245 INFO L308 CegarLoopForPetriNet]: 53 programPoint places, 37 predicate places. [2024-02-19 14:16:27,245 INFO L507 AbstractCegarLoop]: Abstraction has has 90 places, 289 transitions, 4535 flow [2024-02-19 14:16:27,246 INFO L508 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 19.714285714285715) internal successors, (138), 7 states have internal predecessors, (138), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-02-19 14:16:27,246 INFO L226 CegarLoopForPetriNet]: Found error trace [2024-02-19 14:16:27,246 INFO L234 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-02-19 14:16:27,256 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Ended with exit code 0 [2024-02-19 14:16:27,447 WARN L489 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-02-19 14:16:27,447 INFO L432 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2024-02-19 14:16:27,447 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-02-19 14:16:27,447 INFO L85 PathProgramCache]: Analyzing trace with hash -1271056961, now seen corresponding path program 4 times [2024-02-19 14:16:27,448 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-02-19 14:16:27,448 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [80581088] [2024-02-19 14:16:27,448 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-02-19 14:16:27,448 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-02-19 14:16:27,448 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-02-19 14:16:27,450 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-02-19 14:16:27,451 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2024-02-19 14:16:27,732 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-02-19 14:16:27,732 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-02-19 14:16:27,744 INFO L262 TraceCheckSpWp]: Trace formula consists of 291 conjuncts, 11 conjunts are in the unsatisfiable core [2024-02-19 14:16:27,745 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-02-19 14:16:27,799 INFO L378 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 9 [2024-02-19 14:16:27,831 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-02-19 14:16:27,831 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-02-19 14:16:27,831 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-02-19 14:16:27,831 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [80581088] [2024-02-19 14:16:27,831 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [80581088] provided 1 perfect and 0 imperfect interpolant sequences [2024-02-19 14:16:27,831 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-02-19 14:16:27,831 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-02-19 14:16:27,831 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [537027651] [2024-02-19 14:16:27,831 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-02-19 14:16:27,832 INFO L584 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-02-19 14:16:27,832 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-02-19 14:16:27,832 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-02-19 14:16:27,832 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-02-19 14:16:27,832 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 22 out of 60 [2024-02-19 14:16:27,833 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 90 places, 289 transitions, 4535 flow. Second operand has 7 states, 7 states have (on average 25.571428571428573) internal successors, (179), 7 states have internal predecessors, (179), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-02-19 14:16:27,833 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-02-19 14:16:27,833 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 22 of 60 [2024-02-19 14:16:27,833 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-02-19 14:16:30,050 INFO L124 PetriNetUnfolderBase]: 439/871 cut-off events. [2024-02-19 14:16:30,050 INFO L125 PetriNetUnfolderBase]: For 430/430 co-relation queries the response was YES. [2024-02-19 14:16:30,052 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7703 conditions, 871 events. 439/871 cut-off events. For 430/430 co-relation queries the response was YES. Maximal size of possible extension queue 54. Compared 4058 event pairs, 8 based on Foata normal form. 16/886 useless extension candidates. Maximal degree in co-relation 7128. Up to 846 conditions per place. [2024-02-19 14:16:30,059 INFO L140 encePairwiseOnDemand]: 51/60 looper letters, 244 selfloop transitions, 114 changer transitions 18/384 dead transitions. [2024-02-19 14:16:30,059 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 102 places, 384 transitions, 6819 flow [2024-02-19 14:16:30,066 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-02-19 14:16:30,066 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2024-02-19 14:16:30,067 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 404 transitions. [2024-02-19 14:16:30,067 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.517948717948718 [2024-02-19 14:16:30,069 INFO L308 CegarLoopForPetriNet]: 53 programPoint places, 49 predicate places. [2024-02-19 14:16:30,069 INFO L507 AbstractCegarLoop]: Abstraction has has 102 places, 384 transitions, 6819 flow [2024-02-19 14:16:30,069 INFO L508 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 25.571428571428573) internal successors, (179), 7 states have internal predecessors, (179), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-02-19 14:16:30,069 INFO L226 CegarLoopForPetriNet]: Found error trace [2024-02-19 14:16:30,070 INFO L234 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-02-19 14:16:30,081 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2024-02-19 14:16:30,278 WARN L489 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-02-19 14:16:30,278 INFO L432 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2024-02-19 14:16:30,279 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-02-19 14:16:30,279 INFO L85 PathProgramCache]: Analyzing trace with hash 77468331, now seen corresponding path program 5 times [2024-02-19 14:16:30,279 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-02-19 14:16:30,279 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1963221303] [2024-02-19 14:16:30,279 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-02-19 14:16:30,280 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-02-19 14:16:30,280 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-02-19 14:16:30,282 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-02-19 14:16:30,283 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2024-02-19 14:16:30,671 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-02-19 14:16:30,671 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-02-19 14:16:30,683 INFO L262 TraceCheckSpWp]: Trace formula consists of 291 conjuncts, 15 conjunts are in the unsatisfiable core [2024-02-19 14:16:30,685 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-02-19 14:16:30,814 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-02-19 14:16:30,815 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-02-19 14:16:30,815 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-02-19 14:16:30,816 INFO L173 IndexEqualityManager]: detected equality via solver [2024-02-19 14:16:30,816 INFO L173 IndexEqualityManager]: detected equality via solver [2024-02-19 14:16:30,820 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-02-19 14:16:30,821 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 29 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 136 treesize of output 97 [2024-02-19 14:16:31,104 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-02-19 14:16:31,104 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 8 select indices, 8 select index equivalence classes, 28 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 157 treesize of output 93 [2024-02-19 14:16:31,126 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-02-19 14:16:31,127 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-02-19 14:16:31,127 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-02-19 14:16:31,130 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1963221303] [2024-02-19 14:16:31,130 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1963221303] provided 1 perfect and 0 imperfect interpolant sequences [2024-02-19 14:16:31,131 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-02-19 14:16:31,131 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-02-19 14:16:31,131 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [980835392] [2024-02-19 14:16:31,131 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-02-19 14:16:31,131 INFO L584 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-02-19 14:16:31,131 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-02-19 14:16:31,132 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-02-19 14:16:31,132 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-02-19 14:16:31,240 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 16 out of 60 [2024-02-19 14:16:31,240 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 102 places, 384 transitions, 6819 flow. Second operand has 7 states, 7 states have (on average 19.714285714285715) internal successors, (138), 7 states have internal predecessors, (138), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-02-19 14:16:31,240 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-02-19 14:16:31,240 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 16 of 60 [2024-02-19 14:16:31,240 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-02-19 14:16:35,256 INFO L124 PetriNetUnfolderBase]: 439/867 cut-off events. [2024-02-19 14:16:35,256 INFO L125 PetriNetUnfolderBase]: For 527/527 co-relation queries the response was YES. [2024-02-19 14:16:35,257 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8541 conditions, 867 events. 439/867 cut-off events. For 527/527 co-relation queries the response was YES. Maximal size of possible extension queue 53. Compared 4016 event pairs, 14 based on Foata normal form. 2/868 useless extension candidates. Maximal degree in co-relation 7918. Up to 844 conditions per place. [2024-02-19 14:16:35,265 INFO L140 encePairwiseOnDemand]: 48/60 looper letters, 283 selfloop transitions, 95 changer transitions 18/400 dead transitions. [2024-02-19 14:16:35,265 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 112 places, 400 transitions, 7917 flow [2024-02-19 14:16:35,266 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-02-19 14:16:35,266 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2024-02-19 14:16:35,266 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 296 transitions. [2024-02-19 14:16:35,266 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.37948717948717947 [2024-02-19 14:16:35,267 INFO L308 CegarLoopForPetriNet]: 53 programPoint places, 59 predicate places. [2024-02-19 14:16:35,267 INFO L507 AbstractCegarLoop]: Abstraction has has 112 places, 400 transitions, 7917 flow [2024-02-19 14:16:35,267 INFO L508 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 19.714285714285715) internal successors, (138), 7 states have internal predecessors, (138), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-02-19 14:16:35,267 INFO L226 CegarLoopForPetriNet]: Found error trace [2024-02-19 14:16:35,267 INFO L234 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-02-19 14:16:35,276 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2024-02-19 14:16:35,475 WARN L489 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-02-19 14:16:35,476 INFO L432 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2024-02-19 14:16:35,476 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-02-19 14:16:35,476 INFO L85 PathProgramCache]: Analyzing trace with hash -1613630139, now seen corresponding path program 1 times [2024-02-19 14:16:35,476 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-02-19 14:16:35,477 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1675080168] [2024-02-19 14:16:35,477 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-19 14:16:35,477 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-02-19 14:16:35,477 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-02-19 14:16:35,478 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-02-19 14:16:35,480 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2024-02-19 14:16:35,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-02-19 14:16:35,837 INFO L262 TraceCheckSpWp]: Trace formula consists of 295 conjuncts, 33 conjunts are in the unsatisfiable core [2024-02-19 14:16:35,842 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-02-19 14:16:35,855 INFO L173 IndexEqualityManager]: detected equality via solver [2024-02-19 14:16:35,855 INFO L173 IndexEqualityManager]: detected equality via solver [2024-02-19 14:16:35,856 INFO L173 IndexEqualityManager]: detected equality via solver [2024-02-19 14:16:35,859 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 28 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 65 [2024-02-19 14:16:36,430 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-02-19 14:16:36,431 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-02-19 14:16:36,432 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-02-19 14:16:36,432 INFO L173 IndexEqualityManager]: detected equality via solver [2024-02-19 14:16:36,432 INFO L173 IndexEqualityManager]: detected equality via solver [2024-02-19 14:16:36,438 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 29 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 0 case distinctions, treesize of input 201 treesize of output 129 [2024-02-19 14:16:36,712 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-02-19 14:16:36,713 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 28 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 258 treesize of output 153 [2024-02-19 14:16:36,897 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-02-19 14:16:36,898 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 341 treesize of output 289 [2024-02-19 14:16:36,915 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-02-19 14:16:36,915 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-02-19 14:16:36,915 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-02-19 14:16:36,915 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1675080168] [2024-02-19 14:16:36,915 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1675080168] provided 1 perfect and 0 imperfect interpolant sequences [2024-02-19 14:16:36,916 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-02-19 14:16:36,916 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-02-19 14:16:36,916 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1312035429] [2024-02-19 14:16:36,916 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-02-19 14:16:36,916 INFO L584 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-02-19 14:16:36,916 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-02-19 14:16:36,917 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-02-19 14:16:36,917 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-02-19 14:16:37,022 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 16 out of 60 [2024-02-19 14:16:37,023 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 112 places, 400 transitions, 7917 flow. Second operand has 9 states, 9 states have (on average 19.0) internal successors, (171), 9 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-02-19 14:16:37,023 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-02-19 14:16:37,023 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 16 of 60 [2024-02-19 14:16:37,023 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-02-19 14:16:46,185 INFO L124 PetriNetUnfolderBase]: 493/981 cut-off events. [2024-02-19 14:16:46,185 INFO L125 PetriNetUnfolderBase]: For 768/768 co-relation queries the response was YES. [2024-02-19 14:16:46,186 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10631 conditions, 981 events. 493/981 cut-off events. For 768/768 co-relation queries the response was YES. Maximal size of possible extension queue 61. Compared 4771 event pairs, 4 based on Foata normal form. 1/981 useless extension candidates. Maximal degree in co-relation 9890. Up to 955 conditions per place. [2024-02-19 14:16:46,227 INFO L140 encePairwiseOnDemand]: 47/60 looper letters, 320 selfloop transitions, 65 changer transitions 100/489 dead transitions. [2024-02-19 14:16:46,227 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 124 places, 489 transitions, 10682 flow [2024-02-19 14:16:46,232 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-02-19 14:16:46,232 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2024-02-19 14:16:46,233 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 298 transitions. [2024-02-19 14:16:46,233 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.382051282051282 [2024-02-19 14:16:46,234 INFO L308 CegarLoopForPetriNet]: 53 programPoint places, 71 predicate places. [2024-02-19 14:16:46,234 INFO L507 AbstractCegarLoop]: Abstraction has has 124 places, 489 transitions, 10682 flow [2024-02-19 14:16:46,234 INFO L508 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 19.0) internal successors, (171), 9 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-02-19 14:16:46,234 INFO L226 CegarLoopForPetriNet]: Found error trace [2024-02-19 14:16:46,234 INFO L234 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-02-19 14:16:46,241 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Ended with exit code 0 [2024-02-19 14:16:46,441 WARN L489 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-02-19 14:16:46,442 INFO L432 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2024-02-19 14:16:46,442 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-02-19 14:16:46,442 INFO L85 PathProgramCache]: Analyzing trace with hash 476798895, now seen corresponding path program 2 times [2024-02-19 14:16:46,443 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-02-19 14:16:46,443 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [644464124] [2024-02-19 14:16:46,443 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-02-19 14:16:46,443 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-02-19 14:16:46,443 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-02-19 14:16:46,444 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-02-19 14:16:46,445 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2024-02-19 14:16:46,830 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-02-19 14:16:46,830 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-02-19 14:16:46,844 INFO L262 TraceCheckSpWp]: Trace formula consists of 295 conjuncts, 33 conjunts are in the unsatisfiable core [2024-02-19 14:16:46,847 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-02-19 14:16:46,856 INFO L173 IndexEqualityManager]: detected equality via solver [2024-02-19 14:16:46,856 INFO L173 IndexEqualityManager]: detected equality via solver [2024-02-19 14:16:46,857 INFO L173 IndexEqualityManager]: detected equality via solver [2024-02-19 14:16:46,858 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 28 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 65 [2024-02-19 14:16:47,506 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-02-19 14:16:47,514 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-02-19 14:16:47,515 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-02-19 14:16:47,515 INFO L173 IndexEqualityManager]: detected equality via solver [2024-02-19 14:16:47,516 INFO L173 IndexEqualityManager]: detected equality via solver [2024-02-19 14:16:47,519 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 29 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 0 case distinctions, treesize of input 201 treesize of output 129 [2024-02-19 14:16:47,749 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-02-19 14:16:47,750 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 28 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 258 treesize of output 153 [2024-02-19 14:16:47,862 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-02-19 14:16:47,863 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 341 treesize of output 289 [2024-02-19 14:16:47,881 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-02-19 14:16:47,881 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-02-19 14:16:47,881 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-02-19 14:16:47,882 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [644464124] [2024-02-19 14:16:47,882 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [644464124] provided 1 perfect and 0 imperfect interpolant sequences [2024-02-19 14:16:47,882 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-02-19 14:16:47,882 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-02-19 14:16:47,882 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1579434884] [2024-02-19 14:16:47,882 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-02-19 14:16:47,882 INFO L584 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-02-19 14:16:47,883 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-02-19 14:16:47,883 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-02-19 14:16:47,883 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-02-19 14:16:47,986 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 16 out of 60 [2024-02-19 14:16:47,986 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 124 places, 489 transitions, 10682 flow. Second operand has 9 states, 9 states have (on average 19.0) internal successors, (171), 9 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-02-19 14:16:47,987 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-02-19 14:16:47,987 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 16 of 60 [2024-02-19 14:16:47,987 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-02-19 14:16:56,924 INFO L124 PetriNetUnfolderBase]: 493/979 cut-off events. [2024-02-19 14:16:56,924 INFO L125 PetriNetUnfolderBase]: For 925/925 co-relation queries the response was YES. [2024-02-19 14:16:56,925 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11584 conditions, 979 events. 493/979 cut-off events. For 925/925 co-relation queries the response was YES. Maximal size of possible extension queue 62. Compared 4731 event pairs, 18 based on Foata normal form. 1/979 useless extension candidates. Maximal degree in co-relation 10787. Up to 954 conditions per place. [2024-02-19 14:16:56,949 INFO L140 encePairwiseOnDemand]: 47/60 looper letters, 262 selfloop transitions, 50 changer transitions 185/501 dead transitions. [2024-02-19 14:16:56,949 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 137 places, 501 transitions, 11934 flow [2024-02-19 14:16:56,955 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-02-19 14:16:56,955 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2024-02-19 14:16:56,956 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 322 transitions. [2024-02-19 14:16:56,956 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.38333333333333336 [2024-02-19 14:16:56,957 INFO L308 CegarLoopForPetriNet]: 53 programPoint places, 84 predicate places. [2024-02-19 14:16:56,957 INFO L507 AbstractCegarLoop]: Abstraction has has 137 places, 501 transitions, 11934 flow [2024-02-19 14:16:56,957 INFO L508 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 19.0) internal successors, (171), 9 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-02-19 14:16:56,957 INFO L226 CegarLoopForPetriNet]: Found error trace [2024-02-19 14:16:56,957 INFO L234 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-02-19 14:16:56,966 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2024-02-19 14:16:57,166 WARN L489 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-02-19 14:16:57,166 INFO L432 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2024-02-19 14:16:57,167 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-02-19 14:16:57,167 INFO L85 PathProgramCache]: Analyzing trace with hash 1526603537, now seen corresponding path program 3 times [2024-02-19 14:16:57,167 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-02-19 14:16:57,167 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1779838050] [2024-02-19 14:16:57,168 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-02-19 14:16:57,168 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-02-19 14:16:57,168 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-02-19 14:16:57,169 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-02-19 14:16:57,172 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2024-02-19 14:16:57,572 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2024-02-19 14:16:57,573 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-02-19 14:16:57,587 INFO L262 TraceCheckSpWp]: Trace formula consists of 295 conjuncts, 33 conjunts are in the unsatisfiable core [2024-02-19 14:16:57,590 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-02-19 14:16:57,599 INFO L173 IndexEqualityManager]: detected equality via solver [2024-02-19 14:16:57,600 INFO L173 IndexEqualityManager]: detected equality via solver [2024-02-19 14:16:57,600 INFO L173 IndexEqualityManager]: detected equality via solver [2024-02-19 14:16:57,601 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 28 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 65 [2024-02-19 14:16:58,232 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 28 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 0 case distinctions, treesize of input 210 treesize of output 105 [2024-02-19 14:16:58,354 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-02-19 14:16:58,355 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-02-19 14:16:58,356 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-02-19 14:16:58,356 INFO L173 IndexEqualityManager]: detected equality via solver [2024-02-19 14:16:58,356 INFO L173 IndexEqualityManager]: detected equality via solver [2024-02-19 14:16:58,359 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-02-19 14:16:58,360 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 29 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 225 treesize of output 165 [2024-02-19 14:16:58,537 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-02-19 14:16:58,538 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 8 select indices, 8 select index equivalence classes, 28 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 365 treesize of output 301 [2024-02-19 14:16:58,554 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-02-19 14:16:58,554 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-02-19 14:16:58,554 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-02-19 14:16:58,554 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1779838050] [2024-02-19 14:16:58,555 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1779838050] provided 1 perfect and 0 imperfect interpolant sequences [2024-02-19 14:16:58,555 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-02-19 14:16:58,555 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-02-19 14:16:58,555 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1720260161] [2024-02-19 14:16:58,555 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-02-19 14:16:58,555 INFO L584 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-02-19 14:16:58,556 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-02-19 14:16:58,556 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-02-19 14:16:58,556 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-02-19 14:16:58,681 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 16 out of 60 [2024-02-19 14:16:58,681 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 137 places, 501 transitions, 11934 flow. Second operand has 9 states, 9 states have (on average 19.0) internal successors, (171), 9 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-02-19 14:16:58,682 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-02-19 14:16:58,682 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 16 of 60 [2024-02-19 14:16:58,682 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-02-19 14:17:07,492 INFO L124 PetriNetUnfolderBase]: 493/977 cut-off events. [2024-02-19 14:17:07,493 INFO L125 PetriNetUnfolderBase]: For 1106/1106 co-relation queries the response was YES. [2024-02-19 14:17:07,493 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12535 conditions, 977 events. 493/977 cut-off events. For 1106/1106 co-relation queries the response was YES. Maximal size of possible extension queue 62. Compared 4726 event pairs, 2 based on Foata normal form. 1/977 useless extension candidates. Maximal degree in co-relation 11684. Up to 953 conditions per place. [2024-02-19 14:17:07,499 INFO L140 encePairwiseOnDemand]: 47/60 looper letters, 198 selfloop transitions, 44 changer transitions 255/501 dead transitions. [2024-02-19 14:17:07,499 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 150 places, 501 transitions, 12922 flow [2024-02-19 14:17:07,503 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-02-19 14:17:07,503 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2024-02-19 14:17:07,505 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 320 transitions. [2024-02-19 14:17:07,506 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.38095238095238093 [2024-02-19 14:17:07,506 INFO L308 CegarLoopForPetriNet]: 53 programPoint places, 97 predicate places. [2024-02-19 14:17:07,506 INFO L507 AbstractCegarLoop]: Abstraction has has 150 places, 501 transitions, 12922 flow [2024-02-19 14:17:07,506 INFO L508 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 19.0) internal successors, (171), 9 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-02-19 14:17:07,507 INFO L226 CegarLoopForPetriNet]: Found error trace [2024-02-19 14:17:07,507 INFO L234 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-02-19 14:17:07,516 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Ended with exit code 0 [2024-02-19 14:17:07,715 WARN L489 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-02-19 14:17:07,716 INFO L432 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2024-02-19 14:17:07,716 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-02-19 14:17:07,716 INFO L85 PathProgramCache]: Analyzing trace with hash 1010714803, now seen corresponding path program 4 times [2024-02-19 14:17:07,716 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-02-19 14:17:07,717 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2120696458] [2024-02-19 14:17:07,717 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-02-19 14:17:07,717 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-02-19 14:17:07,717 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-02-19 14:17:07,719 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-02-19 14:17:07,721 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2024-02-19 14:17:08,121 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-02-19 14:17:08,121 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-02-19 14:17:08,135 INFO L262 TraceCheckSpWp]: Trace formula consists of 295 conjuncts, 33 conjunts are in the unsatisfiable core [2024-02-19 14:17:08,138 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-02-19 14:17:08,149 INFO L173 IndexEqualityManager]: detected equality via solver [2024-02-19 14:17:08,150 INFO L173 IndexEqualityManager]: detected equality via solver [2024-02-19 14:17:08,150 INFO L173 IndexEqualityManager]: detected equality via solver [2024-02-19 14:17:08,151 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 28 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 65 [2024-02-19 14:17:08,688 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 28 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 0 case distinctions, treesize of input 210 treesize of output 105 [2024-02-19 14:17:08,905 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-02-19 14:17:08,906 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-02-19 14:17:08,906 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-02-19 14:17:08,907 INFO L173 IndexEqualityManager]: detected equality via solver [2024-02-19 14:17:08,907 INFO L173 IndexEqualityManager]: detected equality via solver [2024-02-19 14:17:08,926 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-02-19 14:17:08,927 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 29 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 225 treesize of output 165 [2024-02-19 14:17:09,179 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-02-19 14:17:09,180 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 8 select indices, 8 select index equivalence classes, 28 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 365 treesize of output 301 [2024-02-19 14:17:09,204 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-02-19 14:17:09,204 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-02-19 14:17:09,204 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-02-19 14:17:09,205 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2120696458] [2024-02-19 14:17:09,205 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2120696458] provided 1 perfect and 0 imperfect interpolant sequences [2024-02-19 14:17:09,205 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-02-19 14:17:09,205 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-02-19 14:17:09,205 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1220149521] [2024-02-19 14:17:09,205 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-02-19 14:17:09,205 INFO L584 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-02-19 14:17:09,206 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-02-19 14:17:09,206 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-02-19 14:17:09,206 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-02-19 14:17:09,306 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 16 out of 60 [2024-02-19 14:17:09,306 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 150 places, 501 transitions, 12922 flow. Second operand has 9 states, 9 states have (on average 19.0) internal successors, (171), 9 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-02-19 14:17:09,307 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-02-19 14:17:09,307 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 16 of 60 [2024-02-19 14:17:09,307 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-02-19 14:17:18,018 INFO L124 PetriNetUnfolderBase]: 541/1079 cut-off events. [2024-02-19 14:17:18,018 INFO L125 PetriNetUnfolderBase]: For 1440/1440 co-relation queries the response was YES. [2024-02-19 14:17:18,019 INFO L83 FinitePrefix]: Finished finitePrefix Result has 14900 conditions, 1079 events. 541/1079 cut-off events. For 1440/1440 co-relation queries the response was YES. Maximal size of possible extension queue 66. Compared 5386 event pairs, 8 based on Foata normal form. 1/1079 useless extension candidates. Maximal degree in co-relation 13913. Up to 1052 conditions per place. [2024-02-19 14:17:18,046 INFO L140 encePairwiseOnDemand]: 47/60 looper letters, 201 selfloop transitions, 38 changer transitions 325/568 dead transitions. [2024-02-19 14:17:18,047 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 162 places, 568 transitions, 15792 flow [2024-02-19 14:17:18,052 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-02-19 14:17:18,052 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2024-02-19 14:17:18,053 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 292 transitions. [2024-02-19 14:17:18,053 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.37435897435897436 [2024-02-19 14:17:18,053 INFO L308 CegarLoopForPetriNet]: 53 programPoint places, 109 predicate places. [2024-02-19 14:17:18,053 INFO L507 AbstractCegarLoop]: Abstraction has has 162 places, 568 transitions, 15792 flow [2024-02-19 14:17:18,054 INFO L508 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 19.0) internal successors, (171), 9 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-02-19 14:17:18,054 INFO L226 CegarLoopForPetriNet]: Found error trace [2024-02-19 14:17:18,054 INFO L234 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-02-19 14:17:18,063 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (14)] Forceful destruction successful, exit code 0 [2024-02-19 14:17:18,254 WARN L489 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-02-19 14:17:18,254 INFO L432 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2024-02-19 14:17:18,255 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-02-19 14:17:18,255 INFO L85 PathProgramCache]: Analyzing trace with hash -968752755, now seen corresponding path program 5 times [2024-02-19 14:17:18,255 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-02-19 14:17:18,255 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1759349466] [2024-02-19 14:17:18,255 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-02-19 14:17:18,255 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-02-19 14:17:18,256 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-02-19 14:17:18,256 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-02-19 14:17:18,278 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (15)] Waiting until timeout for monitored process [2024-02-19 14:17:18,656 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-02-19 14:17:18,656 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-02-19 14:17:18,670 INFO L262 TraceCheckSpWp]: Trace formula consists of 295 conjuncts, 33 conjunts are in the unsatisfiable core [2024-02-19 14:17:18,673 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-02-19 14:17:18,682 INFO L173 IndexEqualityManager]: detected equality via solver [2024-02-19 14:17:18,682 INFO L173 IndexEqualityManager]: detected equality via solver [2024-02-19 14:17:18,683 INFO L173 IndexEqualityManager]: detected equality via solver [2024-02-19 14:17:18,684 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 28 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 65 [2024-02-19 14:17:19,223 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 28 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 0 case distinctions, treesize of input 210 treesize of output 105 [2024-02-19 14:17:19,345 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-02-19 14:17:19,346 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-02-19 14:17:19,347 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-02-19 14:17:19,347 INFO L173 IndexEqualityManager]: detected equality via solver [2024-02-19 14:17:19,347 INFO L173 IndexEqualityManager]: detected equality via solver [2024-02-19 14:17:19,350 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-02-19 14:17:19,351 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 29 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 225 treesize of output 165 [2024-02-19 14:17:19,630 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-02-19 14:17:19,631 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 8 select indices, 8 select index equivalence classes, 28 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 365 treesize of output 301 [2024-02-19 14:17:19,649 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-02-19 14:17:19,650 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-02-19 14:17:19,650 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-02-19 14:17:19,651 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1759349466] [2024-02-19 14:17:19,651 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1759349466] provided 1 perfect and 0 imperfect interpolant sequences [2024-02-19 14:17:19,651 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-02-19 14:17:19,651 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-02-19 14:17:19,651 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1786199709] [2024-02-19 14:17:19,652 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-02-19 14:17:19,652 INFO L584 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-02-19 14:17:19,652 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-02-19 14:17:19,652 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-02-19 14:17:19,653 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-02-19 14:17:19,744 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 16 out of 60 [2024-02-19 14:17:19,744 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 162 places, 568 transitions, 15792 flow. Second operand has 9 states, 9 states have (on average 19.0) internal successors, (171), 9 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-02-19 14:17:19,744 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-02-19 14:17:19,744 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 16 of 60 [2024-02-19 14:17:19,744 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-02-19 14:17:33,439 INFO L124 PetriNetUnfolderBase]: 541/1077 cut-off events. [2024-02-19 14:17:33,440 INFO L125 PetriNetUnfolderBase]: For 1673/1673 co-relation queries the response was YES. [2024-02-19 14:17:33,441 INFO L83 FinitePrefix]: Finished finitePrefix Result has 15948 conditions, 1077 events. 541/1077 cut-off events. For 1673/1673 co-relation queries the response was YES. Maximal size of possible extension queue 69. Compared 5379 event pairs, 8 based on Foata normal form. 1/1077 useless extension candidates. Maximal degree in co-relation 14905. Up to 1051 conditions per place. [2024-02-19 14:17:33,447 INFO L140 encePairwiseOnDemand]: 47/60 looper letters, 104 selfloop transitions, 30 changer transitions 429/567 dead transitions. [2024-02-19 14:17:33,447 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 175 places, 567 transitions, 16892 flow [2024-02-19 14:17:33,464 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-02-19 14:17:33,464 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2024-02-19 14:17:33,465 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 321 transitions. [2024-02-19 14:17:33,465 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.3821428571428571 [2024-02-19 14:17:33,466 INFO L308 CegarLoopForPetriNet]: 53 programPoint places, 122 predicate places. [2024-02-19 14:17:33,466 INFO L507 AbstractCegarLoop]: Abstraction has has 175 places, 567 transitions, 16892 flow [2024-02-19 14:17:33,466 INFO L508 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 19.0) internal successors, (171), 9 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-02-19 14:17:33,466 INFO L226 CegarLoopForPetriNet]: Found error trace [2024-02-19 14:17:33,466 INFO L234 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-02-19 14:17:33,475 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (15)] Forceful destruction successful, exit code 0 [2024-02-19 14:17:33,667 WARN L489 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-02-19 14:17:33,667 INFO L432 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2024-02-19 14:17:33,667 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-02-19 14:17:33,667 INFO L85 PathProgramCache]: Analyzing trace with hash -252185625, now seen corresponding path program 6 times [2024-02-19 14:17:33,668 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-02-19 14:17:33,668 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [519996208] [2024-02-19 14:17:33,668 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-02-19 14:17:33,668 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-02-19 14:17:33,668 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-02-19 14:17:33,669 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-02-19 14:17:33,674 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (16)] Waiting until timeout for monitored process [2024-02-19 14:17:34,011 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 1 check-sat command(s) [2024-02-19 14:17:34,011 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-02-19 14:17:34,021 INFO L262 TraceCheckSpWp]: Trace formula consists of 295 conjuncts, 11 conjunts are in the unsatisfiable core [2024-02-19 14:17:34,023 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-02-19 14:17:34,075 INFO L378 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 9 [2024-02-19 14:17:34,087 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-02-19 14:17:34,087 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-02-19 14:17:34,087 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-02-19 14:17:34,087 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [519996208] [2024-02-19 14:17:34,087 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [519996208] provided 1 perfect and 0 imperfect interpolant sequences [2024-02-19 14:17:34,087 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-02-19 14:17:34,087 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-02-19 14:17:34,087 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1369504482] [2024-02-19 14:17:34,087 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-02-19 14:17:34,088 INFO L584 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-02-19 14:17:34,088 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-02-19 14:17:34,088 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-02-19 14:17:34,088 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-02-19 14:17:34,088 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 22 out of 60 [2024-02-19 14:17:34,089 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 175 places, 567 transitions, 16892 flow. Second operand has 7 states, 7 states have (on average 25.714285714285715) internal successors, (180), 7 states have internal predecessors, (180), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-02-19 14:17:34,089 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-02-19 14:17:34,089 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 22 of 60 [2024-02-19 14:17:34,089 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-02-19 14:17:36,418 INFO L124 PetriNetUnfolderBase]: 424/886 cut-off events. [2024-02-19 14:17:36,418 INFO L125 PetriNetUnfolderBase]: For 1935/1935 co-relation queries the response was YES. [2024-02-19 14:17:36,419 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13947 conditions, 886 events. 424/886 cut-off events. For 1935/1935 co-relation queries the response was YES. Maximal size of possible extension queue 50. Compared 4313 event pairs, 0 based on Foata normal form. 16/901 useless extension candidates. Maximal degree in co-relation 12838. Up to 860 conditions per place. [2024-02-19 14:17:36,429 INFO L140 encePairwiseOnDemand]: 51/60 looper letters, 56 selfloop transitions, 29 changer transitions 402/492 dead transitions. [2024-02-19 14:17:36,429 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 185 places, 492 transitions, 15610 flow [2024-02-19 14:17:36,442 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-02-19 14:17:36,442 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2024-02-19 14:17:36,442 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 345 transitions. [2024-02-19 14:17:36,443 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.5227272727272727 [2024-02-19 14:17:36,443 INFO L308 CegarLoopForPetriNet]: 53 programPoint places, 132 predicate places. [2024-02-19 14:17:36,443 INFO L507 AbstractCegarLoop]: Abstraction has has 185 places, 492 transitions, 15610 flow [2024-02-19 14:17:36,443 INFO L508 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 25.714285714285715) internal successors, (180), 7 states have internal predecessors, (180), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-02-19 14:17:36,443 INFO L226 CegarLoopForPetriNet]: Found error trace [2024-02-19 14:17:36,443 INFO L234 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-02-19 14:17:36,466 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (16)] Forceful destruction successful, exit code 0 [2024-02-19 14:17:36,643 WARN L489 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-02-19 14:17:36,644 INFO L432 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2024-02-19 14:17:36,644 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-02-19 14:17:36,644 INFO L85 PathProgramCache]: Analyzing trace with hash 1129553083, now seen corresponding path program 7 times [2024-02-19 14:17:36,645 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-02-19 14:17:36,645 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1193603753] [2024-02-19 14:17:36,645 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-02-19 14:17:36,645 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-02-19 14:17:36,645 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-02-19 14:17:36,646 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-02-19 14:17:36,648 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (17)] Waiting until timeout for monitored process [2024-02-19 14:17:37,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-02-19 14:17:37,130 INFO L262 TraceCheckSpWp]: Trace formula consists of 295 conjuncts, 33 conjunts are in the unsatisfiable core [2024-02-19 14:17:37,133 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-02-19 14:17:37,156 INFO L173 IndexEqualityManager]: detected equality via solver [2024-02-19 14:17:37,157 INFO L173 IndexEqualityManager]: detected equality via solver [2024-02-19 14:17:37,157 INFO L173 IndexEqualityManager]: detected equality via solver [2024-02-19 14:17:37,158 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 28 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 65 [2024-02-19 14:17:37,779 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-02-19 14:17:37,780 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-02-19 14:17:37,781 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-02-19 14:17:37,781 INFO L173 IndexEqualityManager]: detected equality via solver [2024-02-19 14:17:37,782 INFO L173 IndexEqualityManager]: detected equality via solver [2024-02-19 14:17:37,785 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 29 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 0 case distinctions, treesize of input 201 treesize of output 129 [2024-02-19 14:17:37,993 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-02-19 14:17:37,993 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 28 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 258 treesize of output 153 [2024-02-19 14:17:38,097 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-02-19 14:17:38,098 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 341 treesize of output 289 [2024-02-19 14:17:38,113 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-02-19 14:17:38,113 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-02-19 14:17:38,113 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-02-19 14:17:38,113 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1193603753] [2024-02-19 14:17:38,114 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1193603753] provided 1 perfect and 0 imperfect interpolant sequences [2024-02-19 14:17:38,114 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-02-19 14:17:38,114 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-02-19 14:17:38,114 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2070435239] [2024-02-19 14:17:38,114 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-02-19 14:17:38,114 INFO L584 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-02-19 14:17:38,115 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-02-19 14:17:38,115 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-02-19 14:17:38,115 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-02-19 14:17:38,238 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 16 out of 60 [2024-02-19 14:17:38,239 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 185 places, 492 transitions, 15610 flow. Second operand has 9 states, 9 states have (on average 19.0) internal successors, (171), 9 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-02-19 14:17:38,239 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-02-19 14:17:38,239 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 16 of 60 [2024-02-19 14:17:38,239 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-02-19 14:17:52,524 INFO L124 PetriNetUnfolderBase]: 424/884 cut-off events. [2024-02-19 14:17:52,524 INFO L125 PetriNetUnfolderBase]: For 2200/2200 co-relation queries the response was YES. [2024-02-19 14:17:52,525 INFO L83 FinitePrefix]: Finished finitePrefix Result has 14802 conditions, 884 events. 424/884 cut-off events. For 2200/2200 co-relation queries the response was YES. Maximal size of possible extension queue 50. Compared 4325 event pairs, 0 based on Foata normal form. 1/884 useless extension candidates. Maximal degree in co-relation 13639. Up to 859 conditions per place. [2024-02-19 14:17:52,529 INFO L140 encePairwiseOnDemand]: 47/60 looper letters, 0 selfloop transitions, 0 changer transitions 490/490 dead transitions. [2024-02-19 14:17:52,529 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 196 places, 490 transitions, 16554 flow [2024-02-19 14:17:52,535 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-02-19 14:17:52,535 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2024-02-19 14:17:52,536 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 317 transitions. [2024-02-19 14:17:52,536 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.3773809523809524 [2024-02-19 14:17:52,536 INFO L308 CegarLoopForPetriNet]: 53 programPoint places, 143 predicate places. [2024-02-19 14:17:52,537 INFO L507 AbstractCegarLoop]: Abstraction has has 196 places, 490 transitions, 16554 flow [2024-02-19 14:17:52,537 INFO L508 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 19.0) internal successors, (171), 9 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-02-19 14:17:52,539 INFO L818 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (7 of 8 remaining) [2024-02-19 14:17:52,539 INFO L818 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (6 of 8 remaining) [2024-02-19 14:17:52,539 INFO L818 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (5 of 8 remaining) [2024-02-19 14:17:52,539 INFO L818 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION (4 of 8 remaining) [2024-02-19 14:17:52,539 INFO L818 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (3 of 8 remaining) [2024-02-19 14:17:52,539 INFO L818 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION (2 of 8 remaining) [2024-02-19 14:17:52,539 INFO L818 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 8 remaining) [2024-02-19 14:17:52,540 INFO L818 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 8 remaining) [2024-02-19 14:17:52,548 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (17)] Ended with exit code 0 [2024-02-19 14:17:52,740 WARN L489 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-02-19 14:17:53,090 INFO L644 CegarLoopForPetriNet]: Computed Owicki-Gries annotation of size 29034 in 347392354ns [2024-02-19 14:17:53,092 INFO L457 BasicCegarLoop]: Path program histogram: [7, 5, 1, 1, 1, 1] [2024-02-19 14:17:53,095 INFO L246 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-02-19 14:17:53,141 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.UnsupportedOperationException: Multiple instances of thread not yet supported: 37#my_callbackEXITtrue at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.concurrency.OwickiGriesUnpetrifier.computeFormulaMapping(OwickiGriesUnpetrifier.java:163) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.concurrency.OwickiGriesUnpetrifier.(OwickiGriesUnpetrifier.java:110) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseConcurrentProgram(TraceAbstractionStarter.java:263) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:191) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:172) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:124) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:167) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:150) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:127) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:233) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:227) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:144) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:106) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:319) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2024-02-19 14:17:53,146 INFO L158 Benchmark]: Toolchain (without parser) took 104691.97ms. Allocated memory was 107.0MB in the beginning and 352.3MB in the end (delta: 245.4MB). Free memory was 74.8MB in the beginning and 115.9MB in the end (delta: -41.1MB). Peak memory consumption was 210.2MB. Max. memory is 16.1GB. [2024-02-19 14:17:53,146 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 65.0MB. Free memory was 33.9MB in the beginning and 33.8MB in the end (delta: 57.5kB). There was no memory consumed. Max. memory is 16.1GB. [2024-02-19 14:17:53,146 INFO L158 Benchmark]: CACSL2BoogieTranslator took 943.48ms. Allocated memory is still 107.0MB. Free memory was 74.6MB in the beginning and 64.3MB in the end (delta: 10.3MB). Peak memory consumption was 35.6MB. Max. memory is 16.1GB. [2024-02-19 14:17:53,147 INFO L158 Benchmark]: Boogie Procedure Inliner took 44.83ms. Allocated memory is still 107.0MB. Free memory was 64.3MB in the beginning and 60.8MB in the end (delta: 3.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-02-19 14:17:53,147 INFO L158 Benchmark]: Boogie Preprocessor took 59.24ms. Allocated memory is still 107.0MB. Free memory was 60.8MB in the beginning and 54.8MB in the end (delta: 6.0MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2024-02-19 14:17:53,147 INFO L158 Benchmark]: RCFGBuilder took 887.65ms. Allocated memory was 107.0MB in the beginning and 165.7MB in the end (delta: 58.7MB). Free memory was 54.5MB in the beginning and 117.8MB in the end (delta: -63.2MB). Peak memory consumption was 21.6MB. Max. memory is 16.1GB. [2024-02-19 14:17:53,147 INFO L158 Benchmark]: TraceAbstraction took 102750.74ms. Allocated memory was 165.7MB in the beginning and 352.3MB in the end (delta: 186.6MB). Free memory was 117.8MB in the beginning and 115.9MB in the end (delta: 1.9MB). Peak memory consumption was 195.9MB. Max. memory is 16.1GB. [2024-02-19 14:17:53,149 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 65.0MB. Free memory was 33.9MB in the beginning and 33.8MB in the end (delta: 57.5kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 943.48ms. Allocated memory is still 107.0MB. Free memory was 74.6MB in the beginning and 64.3MB in the end (delta: 10.3MB). Peak memory consumption was 35.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 44.83ms. Allocated memory is still 107.0MB. Free memory was 64.3MB in the beginning and 60.8MB in the end (delta: 3.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 59.24ms. Allocated memory is still 107.0MB. Free memory was 60.8MB in the beginning and 54.8MB in the end (delta: 6.0MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * RCFGBuilder took 887.65ms. Allocated memory was 107.0MB in the beginning and 165.7MB in the end (delta: 58.7MB). Free memory was 54.5MB in the beginning and 117.8MB in the end (delta: -63.2MB). Peak memory consumption was 21.6MB. Max. memory is 16.1GB. * TraceAbstraction took 102750.74ms. Allocated memory was 165.7MB in the beginning and 352.3MB in the end (delta: 186.6MB). Free memory was 117.8MB in the beginning and 115.9MB in the end (delta: 1.9MB). Peak memory consumption was 195.9MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: UnsupportedOperationException: Multiple instances of thread not yet supported: 37#my_callbackEXITtrue de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: UnsupportedOperationException: Multiple instances of thread not yet supported: 37#my_callbackEXITtrue: de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.concurrency.OwickiGriesUnpetrifier.computeFormulaMapping(OwickiGriesUnpetrifier.java:163) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2024-02-19 14:17:53,194 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: ERROR: ExceptionOrErrorResult: UnsupportedOperationException: Multiple instances of thread not yet supported: 37#my_callbackEXITtrue