./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/goblint-regression/28-race_reach_70-funloop_racefree.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version e7bb482b Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac005182-51b2-47d5-b1b6-28f1315be75e/bin/uautomizer-verify-WvqO1wxjHP/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac005182-51b2-47d5-b1b6-28f1315be75e/bin/uautomizer-verify-WvqO1wxjHP/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac005182-51b2-47d5-b1b6-28f1315be75e/bin/uautomizer-verify-WvqO1wxjHP/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac005182-51b2-47d5-b1b6-28f1315be75e/bin/uautomizer-verify-WvqO1wxjHP/config/AutomizerReach.xml -i ../../sv-benchmarks/c/goblint-regression/28-race_reach_70-funloop_racefree.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac005182-51b2-47d5-b1b6-28f1315be75e/bin/uautomizer-verify-WvqO1wxjHP/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac005182-51b2-47d5-b1b6-28f1315be75e/bin/uautomizer-verify-WvqO1wxjHP --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 2a10f98c1a89e2ac521234c9e4f0eca565cc5bc1484e9c7d67d861e216c6f9ba --- Real Ultimate output --- This is Ultimate 0.2.3-dev-e7bb482 [2023-11-06 22:43:32,023 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-06 22:43:32,150 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac005182-51b2-47d5-b1b6-28f1315be75e/bin/uautomizer-verify-WvqO1wxjHP/config/svcomp-Overflow-32bit-Automizer_Default.epf [2023-11-06 22:43:32,158 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-06 22:43:32,160 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-06 22:43:32,205 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-06 22:43:32,207 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-06 22:43:32,207 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-06 22:43:32,209 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-06 22:43:32,214 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-06 22:43:32,216 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-06 22:43:32,217 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-06 22:43:32,217 INFO L153 SettingsManager]: * Use SBE=true [2023-11-06 22:43:32,220 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-06 22:43:32,220 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-06 22:43:32,221 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-06 22:43:32,221 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-06 22:43:32,221 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-06 22:43:32,222 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-06 22:43:32,222 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-06 22:43:32,223 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-06 22:43:32,224 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-06 22:43:32,224 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-06 22:43:32,225 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-06 22:43:32,225 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-06 22:43:32,226 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-06 22:43:32,226 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-06 22:43:32,227 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-06 22:43:32,228 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-06 22:43:32,228 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-06 22:43:32,230 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 22:43:32,230 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-06 22:43:32,230 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-06 22:43:32,231 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-11-06 22:43:32,231 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-06 22:43:32,231 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-06 22:43:32,231 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-06 22:43:32,232 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-06 22:43:32,232 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-06 22:43:32,232 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-06 22:43:32,232 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-06 22:43:32,233 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:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac005182-51b2-47d5-b1b6-28f1315be75e/bin/uautomizer-verify-WvqO1wxjHP/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac005182-51b2-47d5-b1b6-28f1315be75e/bin/uautomizer-verify-WvqO1wxjHP Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2a10f98c1a89e2ac521234c9e4f0eca565cc5bc1484e9c7d67d861e216c6f9ba [2023-11-06 22:43:32,567 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-06 22:43:32,614 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-06 22:43:32,617 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-06 22:43:32,619 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-06 22:43:32,619 INFO L274 PluginConnector]: CDTParser initialized [2023-11-06 22:43:32,621 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac005182-51b2-47d5-b1b6-28f1315be75e/bin/uautomizer-verify-WvqO1wxjHP/../../sv-benchmarks/c/goblint-regression/28-race_reach_70-funloop_racefree.i [2023-11-06 22:43:36,044 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-06 22:43:36,389 INFO L384 CDTParser]: Found 1 translation units. [2023-11-06 22:43:36,390 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac005182-51b2-47d5-b1b6-28f1315be75e/sv-benchmarks/c/goblint-regression/28-race_reach_70-funloop_racefree.i [2023-11-06 22:43:36,414 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac005182-51b2-47d5-b1b6-28f1315be75e/bin/uautomizer-verify-WvqO1wxjHP/data/3f0a61548/ae4944dc005441e98fcb025e2bdafc4e/FLAG240eeaae9 [2023-11-06 22:43:36,446 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac005182-51b2-47d5-b1b6-28f1315be75e/bin/uautomizer-verify-WvqO1wxjHP/data/3f0a61548/ae4944dc005441e98fcb025e2bdafc4e [2023-11-06 22:43:36,449 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-06 22:43:36,451 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-06 22:43:36,453 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-06 22:43:36,453 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-06 22:43:36,462 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-06 22:43:36,463 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:43:36" (1/1) ... [2023-11-06 22:43:36,464 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@59d1b909 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:43:36, skipping insertion in model container [2023-11-06 22:43:36,464 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:43:36" (1/1) ... [2023-11-06 22:43:36,550 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-06 22:43:37,326 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 22:43:37,367 INFO L202 MainTranslator]: Completed pre-run [2023-11-06 22:43:37,471 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 22:43:37,605 INFO L206 MainTranslator]: Completed translation [2023-11-06 22:43:37,605 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:43:37 WrapperNode [2023-11-06 22:43:37,606 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-06 22:43:37,607 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-06 22:43:37,608 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-06 22:43:37,609 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-06 22:43:37,620 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:43:37" (1/1) ... [2023-11-06 22:43:37,655 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:43:37" (1/1) ... [2023-11-06 22:43:37,753 INFO L138 Inliner]: procedures = 271, calls = 32, calls flagged for inlining = 6, calls inlined = 8, statements flattened = 221 [2023-11-06 22:43:37,753 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-06 22:43:37,754 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-06 22:43:37,755 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-06 22:43:37,755 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-06 22:43:37,769 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:43:37" (1/1) ... [2023-11-06 22:43:37,770 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:43:37" (1/1) ... [2023-11-06 22:43:37,798 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:43:37" (1/1) ... [2023-11-06 22:43:37,798 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:43:37" (1/1) ... [2023-11-06 22:43:37,809 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:43:37" (1/1) ... [2023-11-06 22:43:37,828 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:43:37" (1/1) ... [2023-11-06 22:43:37,832 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:43:37" (1/1) ... [2023-11-06 22:43:37,844 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:43:37" (1/1) ... [2023-11-06 22:43:37,848 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-06 22:43:37,855 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-06 22:43:37,856 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-06 22:43:37,856 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-06 22:43:37,857 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:43:37" (1/1) ... [2023-11-06 22:43:37,868 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 22:43:37,883 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac005182-51b2-47d5-b1b6-28f1315be75e/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:43:37,902 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac005182-51b2-47d5-b1b6-28f1315be75e/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-06 22:43:37,907 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac005182-51b2-47d5-b1b6-28f1315be75e/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-06 22:43:37,951 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-06 22:43:37,951 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-06 22:43:37,951 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-06 22:43:37,952 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-06 22:43:37,952 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-11-06 22:43:37,952 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-06 22:43:37,952 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2023-11-06 22:43:37,953 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2023-11-06 22:43:37,953 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-06 22:43:37,953 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-06 22:43:37,954 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-06 22:43:37,956 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-06 22:43:38,189 INFO L236 CfgBuilder]: Building ICFG [2023-11-06 22:43:38,192 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-06 22:43:38,640 INFO L277 CfgBuilder]: Performing block encoding [2023-11-06 22:43:38,653 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-06 22:43:38,653 INFO L302 CfgBuilder]: Removed 25 assume(true) statements. [2023-11-06 22:43:38,656 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:43:38 BoogieIcfgContainer [2023-11-06 22:43:38,657 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-06 22:43:38,660 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-06 22:43:38,661 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-06 22:43:38,665 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-06 22:43:38,666 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 10:43:36" (1/3) ... [2023-11-06 22:43:38,667 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@eb6ce05 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 10:43:38, skipping insertion in model container [2023-11-06 22:43:38,667 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:43:37" (2/3) ... [2023-11-06 22:43:38,668 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@eb6ce05 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 10:43:38, skipping insertion in model container [2023-11-06 22:43:38,668 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:43:38" (3/3) ... [2023-11-06 22:43:38,670 INFO L112 eAbstractionObserver]: Analyzing ICFG 28-race_reach_70-funloop_racefree.i [2023-11-06 22:43:38,682 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-11-06 22:43:38,702 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-06 22:43:38,703 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 18 error locations. [2023-11-06 22:43:38,703 INFO L519 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-06 22:43:38,879 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2023-11-06 22:43:38,937 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 213 places, 245 transitions, 497 flow [2023-11-06 22:43:39,124 INFO L124 PetriNetUnfolderBase]: 52/348 cut-off events. [2023-11-06 22:43:39,124 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2023-11-06 22:43:39,136 INFO L83 FinitePrefix]: Finished finitePrefix Result has 353 conditions, 348 events. 52/348 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 1436 event pairs, 0 based on Foata normal form. 0/269 useless extension candidates. Maximal degree in co-relation 200. Up to 8 conditions per place. [2023-11-06 22:43:39,136 INFO L82 GeneralOperation]: Start removeDead. Operand has 213 places, 245 transitions, 497 flow [2023-11-06 22:43:39,147 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 211 places, 242 transitions, 491 flow [2023-11-06 22:43:39,151 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-11-06 22:43:39,163 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 211 places, 242 transitions, 491 flow [2023-11-06 22:43:39,167 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 211 places, 242 transitions, 491 flow [2023-11-06 22:43:39,168 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 211 places, 242 transitions, 491 flow [2023-11-06 22:43:39,268 INFO L124 PetriNetUnfolderBase]: 51/345 cut-off events. [2023-11-06 22:43:39,268 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2023-11-06 22:43:39,276 INFO L83 FinitePrefix]: Finished finitePrefix Result has 350 conditions, 345 events. 51/345 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 1417 event pairs, 0 based on Foata normal form. 0/267 useless extension candidates. Maximal degree in co-relation 200. Up to 8 conditions per place. [2023-11-06 22:43:39,291 INFO L119 LiptonReduction]: Number of co-enabled transitions 19888 [2023-11-06 22:43:44,452 INFO L134 LiptonReduction]: Checked pairs total: 30514 [2023-11-06 22:43:44,453 INFO L136 LiptonReduction]: Total number of compositions: 232 [2023-11-06 22:43:44,480 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-06 22:43:44,490 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@3421ce2f, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-06 22:43:44,490 INFO L358 AbstractCegarLoop]: Starting to check reachability of 25 error locations. [2023-11-06 22:43:44,492 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-06 22:43:44,493 INFO L124 PetriNetUnfolderBase]: 1/2 cut-off events. [2023-11-06 22:43:44,493 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-06 22:43:44,493 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:43:44,494 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1] [2023-11-06 22:43:44,495 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 22 more)] === [2023-11-06 22:43:44,502 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:43:44,503 INFO L85 PathProgramCache]: Analyzing trace with hash 31428, now seen corresponding path program 1 times [2023-11-06 22:43:44,514 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:43:44,515 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2047057230] [2023-11-06 22:43:44,515 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:43:44,516 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:43:44,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:43:44,764 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:43:44,765 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:43:44,765 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2047057230] [2023-11-06 22:43:44,766 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2047057230] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:43:44,766 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:43:44,766 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-06 22:43:44,768 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2019706066] [2023-11-06 22:43:44,768 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:43:44,778 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 22:43:44,784 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:43:44,805 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 22:43:44,806 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 22:43:44,831 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 206 out of 477 [2023-11-06 22:43:44,836 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 65 places, 89 transitions, 185 flow. Second operand has 3 states, 3 states have (on average 206.66666666666666) internal successors, (620), 3 states have internal predecessors, (620), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:43:44,836 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:43:44,836 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 206 of 477 [2023-11-06 22:43:44,838 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 22:43:45,211 INFO L124 PetriNetUnfolderBase]: 623/1295 cut-off events. [2023-11-06 22:43:45,212 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2023-11-06 22:43:45,214 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2475 conditions, 1295 events. 623/1295 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 82. Compared 7568 event pairs, 525 based on Foata normal form. 167/1017 useless extension candidates. Maximal degree in co-relation 2403. Up to 1173 conditions per place. [2023-11-06 22:43:45,227 INFO L140 encePairwiseOnDemand]: 450/477 looper letters, 53 selfloop transitions, 2 changer transitions 0/64 dead transitions. [2023-11-06 22:43:45,227 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 64 places, 64 transitions, 245 flow [2023-11-06 22:43:45,229 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 22:43:45,232 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-06 22:43:45,250 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 698 transitions. [2023-11-06 22:43:45,256 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.48777078965758214 [2023-11-06 22:43:45,258 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 698 transitions. [2023-11-06 22:43:45,259 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 698 transitions. [2023-11-06 22:43:45,265 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:43:45,268 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 698 transitions. [2023-11-06 22:43:45,277 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 232.66666666666666) internal successors, (698), 3 states have internal predecessors, (698), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:43:45,293 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 477.0) internal successors, (1908), 4 states have internal predecessors, (1908), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:43:45,295 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 477.0) internal successors, (1908), 4 states have internal predecessors, (1908), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:43:45,298 INFO L175 Difference]: Start difference. First operand has 65 places, 89 transitions, 185 flow. Second operand 3 states and 698 transitions. [2023-11-06 22:43:45,300 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 64 places, 64 transitions, 245 flow [2023-11-06 22:43:45,305 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 64 places, 64 transitions, 245 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-06 22:43:45,309 INFO L231 Difference]: Finished difference. Result has 64 places, 64 transitions, 139 flow [2023-11-06 22:43:45,312 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=477, PETRI_DIFFERENCE_MINUEND_FLOW=135, PETRI_DIFFERENCE_MINUEND_PLACES=62, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=64, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=62, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=139, PETRI_PLACES=64, PETRI_TRANSITIONS=64} [2023-11-06 22:43:45,319 INFO L281 CegarLoopForPetriNet]: 65 programPoint places, -1 predicate places. [2023-11-06 22:43:45,319 INFO L495 AbstractCegarLoop]: Abstraction has has 64 places, 64 transitions, 139 flow [2023-11-06 22:43:45,321 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 206.66666666666666) internal successors, (620), 3 states have internal predecessors, (620), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:43:45,321 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:43:45,321 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2023-11-06 22:43:45,322 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-06 22:43:45,322 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 22 more)] === [2023-11-06 22:43:45,334 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:43:45,335 INFO L85 PathProgramCache]: Analyzing trace with hash 938065004, now seen corresponding path program 1 times [2023-11-06 22:43:45,335 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:43:45,336 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1167900118] [2023-11-06 22:43:45,336 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:43:45,337 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:43:45,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:43:45,433 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:43:45,434 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:43:45,434 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1167900118] [2023-11-06 22:43:45,435 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1167900118] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:43:45,435 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:43:45,435 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-06 22:43:45,436 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1105099217] [2023-11-06 22:43:45,436 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:43:45,437 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 22:43:45,438 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:43:45,438 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 22:43:45,439 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 22:43:45,465 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 206 out of 477 [2023-11-06 22:43:45,469 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 64 places, 64 transitions, 139 flow. Second operand has 3 states, 3 states have (on average 207.66666666666666) internal successors, (623), 3 states have internal predecessors, (623), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:43:45,469 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:43:45,469 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 206 of 477 [2023-11-06 22:43:45,470 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 22:43:45,737 INFO L124 PetriNetUnfolderBase]: 623/1296 cut-off events. [2023-11-06 22:43:45,738 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2023-11-06 22:43:45,740 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2480 conditions, 1296 events. 623/1296 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 82. Compared 7569 event pairs, 525 based on Foata normal form. 1/853 useless extension candidates. Maximal degree in co-relation 2466. Up to 1175 conditions per place. [2023-11-06 22:43:45,749 INFO L140 encePairwiseOnDemand]: 474/477 looper letters, 54 selfloop transitions, 2 changer transitions 0/65 dead transitions. [2023-11-06 22:43:45,749 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 66 places, 65 transitions, 253 flow [2023-11-06 22:43:45,750 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 22:43:45,750 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-06 22:43:45,752 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 675 transitions. [2023-11-06 22:43:45,753 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4716981132075472 [2023-11-06 22:43:45,753 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 675 transitions. [2023-11-06 22:43:45,753 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 675 transitions. [2023-11-06 22:43:45,754 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:43:45,754 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 675 transitions. [2023-11-06 22:43:45,757 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 225.0) internal successors, (675), 3 states have internal predecessors, (675), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:43:45,761 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 477.0) internal successors, (1908), 4 states have internal predecessors, (1908), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:43:45,762 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 477.0) internal successors, (1908), 4 states have internal predecessors, (1908), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:43:45,763 INFO L175 Difference]: Start difference. First operand has 64 places, 64 transitions, 139 flow. Second operand 3 states and 675 transitions. [2023-11-06 22:43:45,763 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 66 places, 65 transitions, 253 flow [2023-11-06 22:43:45,764 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 64 places, 65 transitions, 249 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-06 22:43:45,766 INFO L231 Difference]: Finished difference. Result has 65 places, 65 transitions, 147 flow [2023-11-06 22:43:45,767 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=477, PETRI_DIFFERENCE_MINUEND_FLOW=135, PETRI_DIFFERENCE_MINUEND_PLACES=62, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=64, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=62, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=147, PETRI_PLACES=65, PETRI_TRANSITIONS=65} [2023-11-06 22:43:45,768 INFO L281 CegarLoopForPetriNet]: 65 programPoint places, 0 predicate places. [2023-11-06 22:43:45,768 INFO L495 AbstractCegarLoop]: Abstraction has has 65 places, 65 transitions, 147 flow [2023-11-06 22:43:45,769 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 207.66666666666666) internal successors, (623), 3 states have internal predecessors, (623), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:43:45,769 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:43:45,769 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2023-11-06 22:43:45,769 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-06 22:43:45,770 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 22 more)] === [2023-11-06 22:43:45,770 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:43:45,770 INFO L85 PathProgramCache]: Analyzing trace with hash -966703736, now seen corresponding path program 1 times [2023-11-06 22:43:45,770 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:43:45,771 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1151437103] [2023-11-06 22:43:45,771 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:43:45,771 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:43:45,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:43:45,891 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:43:45,891 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:43:45,892 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1151437103] [2023-11-06 22:43:45,892 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1151437103] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-06 22:43:45,892 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1501003449] [2023-11-06 22:43:45,892 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:43:45,893 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:43:45,893 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac005182-51b2-47d5-b1b6-28f1315be75e/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:43:45,900 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac005182-51b2-47d5-b1b6-28f1315be75e/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 22:43:45,956 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac005182-51b2-47d5-b1b6-28f1315be75e/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-06 22:43:46,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:43:46,036 INFO L262 TraceCheckSpWp]: Trace formula consists of 88 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-06 22:43:46,041 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:43:46,087 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:43:46,087 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-06 22:43:46,140 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:43:46,141 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1501003449] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-06 22:43:46,141 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-06 22:43:46,141 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 5 [2023-11-06 22:43:46,141 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [115294891] [2023-11-06 22:43:46,142 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-06 22:43:46,142 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-06 22:43:46,142 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:43:46,143 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-06 22:43:46,143 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-06 22:43:46,170 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 205 out of 477 [2023-11-06 22:43:46,202 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 65 places, 65 transitions, 147 flow. Second operand has 6 states, 6 states have (on average 206.5) internal successors, (1239), 6 states have internal predecessors, (1239), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:43:46,203 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:43:46,203 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 205 of 477 [2023-11-06 22:43:46,203 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 22:43:46,473 INFO L124 PetriNetUnfolderBase]: 623/1299 cut-off events. [2023-11-06 22:43:46,473 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2023-11-06 22:43:46,475 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2493 conditions, 1299 events. 623/1299 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 82. Compared 7570 event pairs, 525 based on Foata normal form. 0/854 useless extension candidates. Maximal degree in co-relation 2481. Up to 1175 conditions per place. [2023-11-06 22:43:46,484 INFO L140 encePairwiseOnDemand]: 474/477 looper letters, 54 selfloop transitions, 5 changer transitions 0/68 dead transitions. [2023-11-06 22:43:46,484 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 70 places, 68 transitions, 277 flow [2023-11-06 22:43:46,484 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-06 22:43:46,485 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-06 22:43:46,489 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1292 transitions. [2023-11-06 22:43:46,490 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.45143256464011183 [2023-11-06 22:43:46,490 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1292 transitions. [2023-11-06 22:43:46,490 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1292 transitions. [2023-11-06 22:43:46,491 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:43:46,492 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1292 transitions. [2023-11-06 22:43:46,496 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 215.33333333333334) internal successors, (1292), 6 states have internal predecessors, (1292), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:43:46,503 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 477.0) internal successors, (3339), 7 states have internal predecessors, (3339), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:43:46,506 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 477.0) internal successors, (3339), 7 states have internal predecessors, (3339), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:43:46,506 INFO L175 Difference]: Start difference. First operand has 65 places, 65 transitions, 147 flow. Second operand 6 states and 1292 transitions. [2023-11-06 22:43:46,506 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 70 places, 68 transitions, 277 flow [2023-11-06 22:43:46,508 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 69 places, 68 transitions, 273 flow, removed 1 selfloop flow, removed 1 redundant places. [2023-11-06 22:43:46,509 INFO L231 Difference]: Finished difference. Result has 72 places, 68 transitions, 179 flow [2023-11-06 22:43:46,510 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=477, PETRI_DIFFERENCE_MINUEND_FLOW=143, PETRI_DIFFERENCE_MINUEND_PLACES=64, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=65, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=62, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=179, PETRI_PLACES=72, PETRI_TRANSITIONS=68} [2023-11-06 22:43:46,511 INFO L281 CegarLoopForPetriNet]: 65 programPoint places, 7 predicate places. [2023-11-06 22:43:46,511 INFO L495 AbstractCegarLoop]: Abstraction has has 72 places, 68 transitions, 179 flow [2023-11-06 22:43:46,512 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 206.5) internal successors, (1239), 6 states have internal predecessors, (1239), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:43:46,513 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:43:46,513 INFO L208 CegarLoopForPetriNet]: trace histogram [4, 1, 1, 1, 1, 1] [2023-11-06 22:43:46,526 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac005182-51b2-47d5-b1b6-28f1315be75e/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-06 22:43:46,719 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac005182-51b2-47d5-b1b6-28f1315be75e/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:43:46,719 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 22 more)] === [2023-11-06 22:43:46,720 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:43:46,720 INFO L85 PathProgramCache]: Analyzing trace with hash -569302164, now seen corresponding path program 2 times [2023-11-06 22:43:46,720 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:43:46,720 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1931371405] [2023-11-06 22:43:46,720 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:43:46,721 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:43:46,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:43:46,813 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-11-06 22:43:46,813 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:43:46,813 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1931371405] [2023-11-06 22:43:46,814 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1931371405] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:43:46,814 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:43:46,814 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-06 22:43:46,815 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1111918154] [2023-11-06 22:43:46,815 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:43:46,815 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 22:43:46,815 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:43:46,816 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 22:43:46,816 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 22:43:46,833 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 206 out of 477 [2023-11-06 22:43:46,834 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 72 places, 68 transitions, 179 flow. Second operand has 3 states, 3 states have (on average 208.0) internal successors, (624), 3 states have internal predecessors, (624), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:43:46,835 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:43:46,835 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 206 of 477 [2023-11-06 22:43:46,835 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 22:43:47,126 INFO L124 PetriNetUnfolderBase]: 575/1199 cut-off events. [2023-11-06 22:43:47,126 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2023-11-06 22:43:47,128 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2296 conditions, 1199 events. 575/1199 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 74. Compared 7047 event pairs, 220 based on Foata normal form. 0/828 useless extension candidates. Maximal degree in co-relation 2262. Up to 1044 conditions per place. [2023-11-06 22:43:47,136 INFO L140 encePairwiseOnDemand]: 472/477 looper letters, 78 selfloop transitions, 2 changer transitions 0/89 dead transitions. [2023-11-06 22:43:47,137 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 72 places, 89 transitions, 381 flow [2023-11-06 22:43:47,137 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 22:43:47,138 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-06 22:43:47,140 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 697 transitions. [2023-11-06 22:43:47,141 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.48707197763801535 [2023-11-06 22:43:47,141 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 697 transitions. [2023-11-06 22:43:47,141 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 697 transitions. [2023-11-06 22:43:47,142 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:43:47,142 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 697 transitions. [2023-11-06 22:43:47,145 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 232.33333333333334) internal successors, (697), 3 states have internal predecessors, (697), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:43:47,150 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 477.0) internal successors, (1908), 4 states have internal predecessors, (1908), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:43:47,152 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 477.0) internal successors, (1908), 4 states have internal predecessors, (1908), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:43:47,152 INFO L175 Difference]: Start difference. First operand has 72 places, 68 transitions, 179 flow. Second operand 3 states and 697 transitions. [2023-11-06 22:43:47,152 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 72 places, 89 transitions, 381 flow [2023-11-06 22:43:47,155 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 71 places, 89 transitions, 367 flow, removed 6 selfloop flow, removed 1 redundant places. [2023-11-06 22:43:47,158 INFO L231 Difference]: Finished difference. Result has 72 places, 66 transitions, 169 flow [2023-11-06 22:43:47,158 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=477, PETRI_DIFFERENCE_MINUEND_FLOW=161, PETRI_DIFFERENCE_MINUEND_PLACES=69, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=66, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=64, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=169, PETRI_PLACES=72, PETRI_TRANSITIONS=66} [2023-11-06 22:43:47,159 INFO L281 CegarLoopForPetriNet]: 65 programPoint places, 7 predicate places. [2023-11-06 22:43:47,160 INFO L495 AbstractCegarLoop]: Abstraction has has 72 places, 66 transitions, 169 flow [2023-11-06 22:43:47,161 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 208.0) internal successors, (624), 3 states have internal predecessors, (624), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:43:47,161 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:43:47,161 INFO L208 CegarLoopForPetriNet]: trace histogram [4, 2, 1, 1, 1, 1, 1] [2023-11-06 22:43:47,161 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-06 22:43:47,162 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 22 more)] === [2023-11-06 22:43:47,162 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:43:47,162 INFO L85 PathProgramCache]: Analyzing trace with hash -1638474228, now seen corresponding path program 1 times [2023-11-06 22:43:47,163 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:43:47,163 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1753353691] [2023-11-06 22:43:47,163 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:43:47,164 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:43:47,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:43:47,290 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-06 22:43:47,290 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:43:47,291 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1753353691] [2023-11-06 22:43:47,291 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1753353691] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-06 22:43:47,291 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [40263492] [2023-11-06 22:43:47,291 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:43:47,292 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:43:47,292 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac005182-51b2-47d5-b1b6-28f1315be75e/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:43:47,293 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac005182-51b2-47d5-b1b6-28f1315be75e/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 22:43:47,330 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac005182-51b2-47d5-b1b6-28f1315be75e/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-06 22:43:47,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:43:47,407 INFO L262 TraceCheckSpWp]: Trace formula consists of 123 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-06 22:43:47,410 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:43:47,431 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-06 22:43:47,431 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-06 22:43:47,505 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-06 22:43:47,506 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [40263492] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-06 22:43:47,506 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-06 22:43:47,506 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 11 [2023-11-06 22:43:47,507 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2061414778] [2023-11-06 22:43:47,507 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-06 22:43:47,507 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-06 22:43:47,508 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:43:47,508 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-06 22:43:47,509 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=66, Unknown=0, NotChecked=0, Total=132 [2023-11-06 22:43:47,558 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 205 out of 477 [2023-11-06 22:43:47,563 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 72 places, 66 transitions, 169 flow. Second operand has 12 states, 12 states have (on average 206.25) internal successors, (2475), 12 states have internal predecessors, (2475), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:43:47,563 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:43:47,563 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 205 of 477 [2023-11-06 22:43:47,563 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 22:43:47,840 INFO L124 PetriNetUnfolderBase]: 574/1183 cut-off events. [2023-11-06 22:43:47,840 INFO L125 PetriNetUnfolderBase]: For 118/118 co-relation queries the response was YES. [2023-11-06 22:43:47,842 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2360 conditions, 1183 events. 574/1183 cut-off events. For 118/118 co-relation queries the response was YES. Maximal size of possible extension queue 80. Compared 6647 event pairs, 483 based on Foata normal form. 6/832 useless extension candidates. Maximal degree in co-relation 2307. Up to 1065 conditions per place. [2023-11-06 22:43:47,851 INFO L140 encePairwiseOnDemand]: 474/477 looper letters, 52 selfloop transitions, 11 changer transitions 0/72 dead transitions. [2023-11-06 22:43:47,851 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 83 places, 72 transitions, 331 flow [2023-11-06 22:43:47,852 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-06 22:43:47,852 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2023-11-06 22:43:47,860 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 2529 transitions. [2023-11-06 22:43:47,862 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4418238993710692 [2023-11-06 22:43:47,862 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 2529 transitions. [2023-11-06 22:43:47,863 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 2529 transitions. [2023-11-06 22:43:47,865 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:43:47,865 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 2529 transitions. [2023-11-06 22:43:47,874 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 210.75) internal successors, (2529), 12 states have internal predecessors, (2529), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:43:47,886 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 477.0) internal successors, (6201), 13 states have internal predecessors, (6201), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:43:47,890 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 477.0) internal successors, (6201), 13 states have internal predecessors, (6201), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:43:47,890 INFO L175 Difference]: Start difference. First operand has 72 places, 66 transitions, 169 flow. Second operand 12 states and 2529 transitions. [2023-11-06 22:43:47,890 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 83 places, 72 transitions, 331 flow [2023-11-06 22:43:47,893 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 81 places, 72 transitions, 327 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-06 22:43:47,895 INFO L231 Difference]: Finished difference. Result has 87 places, 72 transitions, 249 flow [2023-11-06 22:43:47,895 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=477, PETRI_DIFFERENCE_MINUEND_FLOW=165, PETRI_DIFFERENCE_MINUEND_PLACES=70, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=66, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=60, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=249, PETRI_PLACES=87, PETRI_TRANSITIONS=72} [2023-11-06 22:43:47,896 INFO L281 CegarLoopForPetriNet]: 65 programPoint places, 22 predicate places. [2023-11-06 22:43:47,897 INFO L495 AbstractCegarLoop]: Abstraction has has 87 places, 72 transitions, 249 flow [2023-11-06 22:43:47,898 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 206.25) internal successors, (2475), 12 states have internal predecessors, (2475), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:43:47,899 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:43:47,899 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 2, 1, 1, 1, 1, 1] [2023-11-06 22:43:47,913 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac005182-51b2-47d5-b1b6-28f1315be75e/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-11-06 22:43:48,105 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac005182-51b2-47d5-b1b6-28f1315be75e/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:43:48,106 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 22 more)] === [2023-11-06 22:43:48,106 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:43:48,106 INFO L85 PathProgramCache]: Analyzing trace with hash -1181759348, now seen corresponding path program 2 times [2023-11-06 22:43:48,106 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:43:48,107 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [482999112] [2023-11-06 22:43:48,107 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:43:48,107 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:43:48,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:43:48,167 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-06 22:43:48,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:43:48,282 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-06 22:43:48,283 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-06 22:43:48,284 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (24 of 25 remaining) [2023-11-06 22:43:48,286 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (23 of 25 remaining) [2023-11-06 22:43:48,287 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (22 of 25 remaining) [2023-11-06 22:43:48,287 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (21 of 25 remaining) [2023-11-06 22:43:48,287 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (20 of 25 remaining) [2023-11-06 22:43:48,288 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW (19 of 25 remaining) [2023-11-06 22:43:48,288 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW (18 of 25 remaining) [2023-11-06 22:43:48,288 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 25 remaining) [2023-11-06 22:43:48,288 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 25 remaining) [2023-11-06 22:43:48,289 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 25 remaining) [2023-11-06 22:43:48,289 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 25 remaining) [2023-11-06 22:43:48,289 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 25 remaining) [2023-11-06 22:43:48,289 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 25 remaining) [2023-11-06 22:43:48,290 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 25 remaining) [2023-11-06 22:43:48,290 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 25 remaining) [2023-11-06 22:43:48,290 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 25 remaining) [2023-11-06 22:43:48,290 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 25 remaining) [2023-11-06 22:43:48,291 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 25 remaining) [2023-11-06 22:43:48,291 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 25 remaining) [2023-11-06 22:43:48,291 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 25 remaining) [2023-11-06 22:43:48,291 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 25 remaining) [2023-11-06 22:43:48,292 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 25 remaining) [2023-11-06 22:43:48,292 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 25 remaining) [2023-11-06 22:43:48,292 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 25 remaining) [2023-11-06 22:43:48,292 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 25 remaining) [2023-11-06 22:43:48,292 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-06 22:43:48,293 INFO L445 BasicCegarLoop]: Path program histogram: [2, 2, 1, 1] [2023-11-06 22:43:48,296 WARN L233 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2023-11-06 22:43:48,296 INFO L519 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2023-11-06 22:43:48,362 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2023-11-06 22:43:48,369 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 289 places, 335 transitions, 686 flow [2023-11-06 22:43:48,470 INFO L124 PetriNetUnfolderBase]: 87/579 cut-off events. [2023-11-06 22:43:48,470 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2023-11-06 22:43:48,476 INFO L83 FinitePrefix]: Finished finitePrefix Result has 591 conditions, 579 events. 87/579 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 2856 event pairs, 0 based on Foata normal form. 0/446 useless extension candidates. Maximal degree in co-relation 350. Up to 12 conditions per place. [2023-11-06 22:43:48,477 INFO L82 GeneralOperation]: Start removeDead. Operand has 289 places, 335 transitions, 686 flow [2023-11-06 22:43:48,487 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 289 places, 335 transitions, 686 flow [2023-11-06 22:43:48,487 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-11-06 22:43:48,488 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 289 places, 335 transitions, 686 flow [2023-11-06 22:43:48,488 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 289 places, 335 transitions, 686 flow [2023-11-06 22:43:48,489 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 289 places, 335 transitions, 686 flow [2023-11-06 22:43:48,586 INFO L124 PetriNetUnfolderBase]: 87/579 cut-off events. [2023-11-06 22:43:48,586 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2023-11-06 22:43:48,592 INFO L83 FinitePrefix]: Finished finitePrefix Result has 591 conditions, 579 events. 87/579 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 2856 event pairs, 0 based on Foata normal form. 0/446 useless extension candidates. Maximal degree in co-relation 350. Up to 12 conditions per place. [2023-11-06 22:43:48,630 INFO L119 LiptonReduction]: Number of co-enabled transitions 58608 [2023-11-06 22:43:54,191 INFO L134 LiptonReduction]: Checked pairs total: 92374 [2023-11-06 22:43:54,191 INFO L136 LiptonReduction]: Total number of compositions: 297 [2023-11-06 22:43:54,193 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-06 22:43:54,203 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@3421ce2f, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-06 22:43:54,203 INFO L358 AbstractCegarLoop]: Starting to check reachability of 31 error locations. [2023-11-06 22:43:54,205 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-06 22:43:54,205 INFO L124 PetriNetUnfolderBase]: 1/2 cut-off events. [2023-11-06 22:43:54,205 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-06 22:43:54,205 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:43:54,205 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1] [2023-11-06 22:43:54,206 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 28 more)] === [2023-11-06 22:43:54,206 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:43:54,206 INFO L85 PathProgramCache]: Analyzing trace with hash 54394, now seen corresponding path program 1 times [2023-11-06 22:43:54,206 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:43:54,207 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1955510116] [2023-11-06 22:43:54,207 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:43:54,207 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:43:54,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:43:54,255 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:43:54,255 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:43:54,255 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1955510116] [2023-11-06 22:43:54,258 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1955510116] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:43:54,259 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:43:54,260 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-06 22:43:54,261 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [619970875] [2023-11-06 22:43:54,261 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:43:54,261 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 22:43:54,262 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:43:54,263 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 22:43:54,263 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 22:43:54,282 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 280 out of 632 [2023-11-06 22:43:54,283 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 95 places, 132 transitions, 280 flow. Second operand has 3 states, 3 states have (on average 280.6666666666667) internal successors, (842), 3 states have internal predecessors, (842), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:43:54,284 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:43:54,284 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 280 of 632 [2023-11-06 22:43:54,284 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 22:44:00,156 INFO L124 PetriNetUnfolderBase]: 33319/50513 cut-off events. [2023-11-06 22:44:00,156 INFO L125 PetriNetUnfolderBase]: For 200/200 co-relation queries the response was YES. [2023-11-06 22:44:00,219 INFO L83 FinitePrefix]: Finished finitePrefix Result has 98856 conditions, 50513 events. 33319/50513 cut-off events. For 200/200 co-relation queries the response was YES. Maximal size of possible extension queue 1684. Compared 372879 event pairs, 29890 based on Foata normal form. 5690/38178 useless extension candidates. Maximal degree in co-relation 46427. Up to 48216 conditions per place. [2023-11-06 22:44:00,462 INFO L140 encePairwiseOnDemand]: 594/632 looper letters, 85 selfloop transitions, 2 changer transitions 0/99 dead transitions. [2023-11-06 22:44:00,463 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 96 places, 99 transitions, 388 flow [2023-11-06 22:44:00,464 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 22:44:00,464 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-06 22:44:00,469 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 964 transitions. [2023-11-06 22:44:00,470 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5084388185654009 [2023-11-06 22:44:00,471 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 964 transitions. [2023-11-06 22:44:00,471 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 964 transitions. [2023-11-06 22:44:00,472 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:44:00,472 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 964 transitions. [2023-11-06 22:44:00,475 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 321.3333333333333) internal successors, (964), 3 states have internal predecessors, (964), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:44:00,480 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 632.0) internal successors, (2528), 4 states have internal predecessors, (2528), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:44:00,482 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 632.0) internal successors, (2528), 4 states have internal predecessors, (2528), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:44:00,482 INFO L175 Difference]: Start difference. First operand has 95 places, 132 transitions, 280 flow. Second operand 3 states and 964 transitions. [2023-11-06 22:44:00,482 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 96 places, 99 transitions, 388 flow [2023-11-06 22:44:00,485 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 96 places, 99 transitions, 388 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-06 22:44:00,490 INFO L231 Difference]: Finished difference. Result has 97 places, 99 transitions, 226 flow [2023-11-06 22:44:00,490 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=632, PETRI_DIFFERENCE_MINUEND_FLOW=212, PETRI_DIFFERENCE_MINUEND_PLACES=94, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=98, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=96, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=226, PETRI_PLACES=97, PETRI_TRANSITIONS=99} [2023-11-06 22:44:00,492 INFO L281 CegarLoopForPetriNet]: 95 programPoint places, 2 predicate places. [2023-11-06 22:44:00,493 INFO L495 AbstractCegarLoop]: Abstraction has has 97 places, 99 transitions, 226 flow [2023-11-06 22:44:00,493 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 280.6666666666667) internal successors, (842), 3 states have internal predecessors, (842), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:44:00,494 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:44:00,494 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2023-11-06 22:44:00,494 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-06 22:44:00,494 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 28 more)] === [2023-11-06 22:44:00,495 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:44:00,495 INFO L85 PathProgramCache]: Analyzing trace with hash 1689675, now seen corresponding path program 1 times [2023-11-06 22:44:00,495 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:44:00,495 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1967831921] [2023-11-06 22:44:00,496 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:44:00,496 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:44:00,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:44:00,541 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:44:00,541 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:44:00,541 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1967831921] [2023-11-06 22:44:00,541 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1967831921] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:44:00,542 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:44:00,542 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-06 22:44:00,542 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [768906683] [2023-11-06 22:44:00,542 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:44:00,543 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 22:44:00,543 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:44:00,543 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 22:44:00,543 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 22:44:00,560 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 280 out of 632 [2023-11-06 22:44:00,562 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 97 places, 99 transitions, 226 flow. Second operand has 3 states, 3 states have (on average 281.0) internal successors, (843), 3 states have internal predecessors, (843), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:44:00,562 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:44:00,562 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 280 of 632 [2023-11-06 22:44:00,562 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 22:44:05,021 INFO L124 PetriNetUnfolderBase]: 33319/50512 cut-off events. [2023-11-06 22:44:05,022 INFO L125 PetriNetUnfolderBase]: For 200/200 co-relation queries the response was YES. [2023-11-06 22:44:05,092 INFO L83 FinitePrefix]: Finished finitePrefix Result has 98861 conditions, 50512 events. 33319/50512 cut-off events. For 200/200 co-relation queries the response was YES. Maximal size of possible extension queue 1684. Compared 372798 event pairs, 29890 based on Foata normal form. 0/32488 useless extension candidates. Maximal degree in co-relation 98848. Up to 48213 conditions per place. [2023-11-06 22:44:05,321 INFO L140 encePairwiseOnDemand]: 629/632 looper letters, 84 selfloop transitions, 2 changer transitions 0/98 dead transitions. [2023-11-06 22:44:05,321 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 98 places, 98 transitions, 394 flow [2023-11-06 22:44:05,322 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 22:44:05,322 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-06 22:44:05,328 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 926 transitions. [2023-11-06 22:44:05,329 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4883966244725738 [2023-11-06 22:44:05,329 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 926 transitions. [2023-11-06 22:44:05,329 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 926 transitions. [2023-11-06 22:44:05,330 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:44:05,331 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 926 transitions. [2023-11-06 22:44:05,334 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 308.6666666666667) internal successors, (926), 3 states have internal predecessors, (926), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:44:05,339 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 632.0) internal successors, (2528), 4 states have internal predecessors, (2528), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:44:05,341 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 632.0) internal successors, (2528), 4 states have internal predecessors, (2528), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:44:05,341 INFO L175 Difference]: Start difference. First operand has 97 places, 99 transitions, 226 flow. Second operand 3 states and 926 transitions. [2023-11-06 22:44:05,341 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 98 places, 98 transitions, 394 flow [2023-11-06 22:44:05,346 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 97 places, 98 transitions, 390 flow, removed 1 selfloop flow, removed 1 redundant places. [2023-11-06 22:44:05,349 INFO L231 Difference]: Finished difference. Result has 97 places, 98 transitions, 222 flow [2023-11-06 22:44:05,350 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=632, PETRI_DIFFERENCE_MINUEND_FLOW=218, PETRI_DIFFERENCE_MINUEND_PLACES=95, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=98, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=96, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=222, PETRI_PLACES=97, PETRI_TRANSITIONS=98} [2023-11-06 22:44:05,351 INFO L281 CegarLoopForPetriNet]: 95 programPoint places, 2 predicate places. [2023-11-06 22:44:05,352 INFO L495 AbstractCegarLoop]: Abstraction has has 97 places, 98 transitions, 222 flow [2023-11-06 22:44:05,352 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 281.0) internal successors, (843), 3 states have internal predecessors, (843), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:44:05,353 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:44:05,353 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:44:05,353 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-11-06 22:44:05,353 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 28 more)] === [2023-11-06 22:44:05,355 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:44:05,355 INFO L85 PathProgramCache]: Analyzing trace with hash 1456865091, now seen corresponding path program 1 times [2023-11-06 22:44:05,355 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:44:05,356 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1565803698] [2023-11-06 22:44:05,356 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:44:05,356 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:44:05,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:44:05,421 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:44:05,422 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:44:05,422 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1565803698] [2023-11-06 22:44:05,422 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1565803698] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-06 22:44:05,422 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [892273827] [2023-11-06 22:44:05,423 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:44:05,423 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:44:05,423 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac005182-51b2-47d5-b1b6-28f1315be75e/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:44:05,424 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac005182-51b2-47d5-b1b6-28f1315be75e/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 22:44:05,444 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac005182-51b2-47d5-b1b6-28f1315be75e/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-06 22:44:05,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:44:05,534 INFO L262 TraceCheckSpWp]: Trace formula consists of 89 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-06 22:44:05,536 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:44:05,549 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:44:05,550 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-06 22:44:05,572 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:44:05,572 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [892273827] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-06 22:44:05,572 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-06 22:44:05,572 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 6 [2023-11-06 22:44:05,573 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [790561642] [2023-11-06 22:44:05,573 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-06 22:44:05,574 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-06 22:44:05,576 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:44:05,578 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-06 22:44:05,578 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2023-11-06 22:44:05,606 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 279 out of 632 [2023-11-06 22:44:05,609 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 97 places, 98 transitions, 222 flow. Second operand has 7 states, 7 states have (on average 280.57142857142856) internal successors, (1964), 7 states have internal predecessors, (1964), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:44:05,610 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:44:05,610 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 279 of 632 [2023-11-06 22:44:05,610 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 22:44:10,102 INFO L124 PetriNetUnfolderBase]: 33319/50515 cut-off events. [2023-11-06 22:44:10,103 INFO L125 PetriNetUnfolderBase]: For 201/201 co-relation queries the response was YES. [2023-11-06 22:44:10,166 INFO L83 FinitePrefix]: Finished finitePrefix Result has 98870 conditions, 50515 events. 33319/50515 cut-off events. For 201/201 co-relation queries the response was YES. Maximal size of possible extension queue 1679. Compared 372867 event pairs, 29890 based on Foata normal form. 3/32495 useless extension candidates. Maximal degree in co-relation 98842. Up to 48215 conditions per place. [2023-11-06 22:44:10,424 INFO L140 encePairwiseOnDemand]: 629/632 looper letters, 84 selfloop transitions, 5 changer transitions 0/101 dead transitions. [2023-11-06 22:44:10,425 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 102 places, 101 transitions, 412 flow [2023-11-06 22:44:10,436 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-06 22:44:10,436 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-06 22:44:10,442 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1766 transitions. [2023-11-06 22:44:10,444 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4657172995780591 [2023-11-06 22:44:10,444 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1766 transitions. [2023-11-06 22:44:10,444 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1766 transitions. [2023-11-06 22:44:10,446 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:44:10,447 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1766 transitions. [2023-11-06 22:44:10,453 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 294.3333333333333) internal successors, (1766), 6 states have internal predecessors, (1766), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:44:10,462 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 632.0) internal successors, (4424), 7 states have internal predecessors, (4424), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:44:10,464 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 632.0) internal successors, (4424), 7 states have internal predecessors, (4424), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:44:10,464 INFO L175 Difference]: Start difference. First operand has 97 places, 98 transitions, 222 flow. Second operand 6 states and 1766 transitions. [2023-11-06 22:44:10,464 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 102 places, 101 transitions, 412 flow [2023-11-06 22:44:10,467 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 100 places, 101 transitions, 408 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-06 22:44:10,469 INFO L231 Difference]: Finished difference. Result has 103 places, 101 transitions, 254 flow [2023-11-06 22:44:10,470 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=632, PETRI_DIFFERENCE_MINUEND_FLOW=218, PETRI_DIFFERENCE_MINUEND_PLACES=95, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=98, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=95, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=254, PETRI_PLACES=103, PETRI_TRANSITIONS=101} [2023-11-06 22:44:10,473 INFO L281 CegarLoopForPetriNet]: 95 programPoint places, 8 predicate places. [2023-11-06 22:44:10,473 INFO L495 AbstractCegarLoop]: Abstraction has has 103 places, 101 transitions, 254 flow [2023-11-06 22:44:10,474 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 280.57142857142856) internal successors, (1964), 7 states have internal predecessors, (1964), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:44:10,474 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:44:10,474 INFO L208 CegarLoopForPetriNet]: trace histogram [4, 1, 1, 1, 1, 1, 1] [2023-11-06 22:44:10,485 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac005182-51b2-47d5-b1b6-28f1315be75e/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-11-06 22:44:10,679 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac005182-51b2-47d5-b1b6-28f1315be75e/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2023-11-06 22:44:10,679 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 28 more)] === [2023-11-06 22:44:10,680 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:44:10,680 INFO L85 PathProgramCache]: Analyzing trace with hash -1113315278, now seen corresponding path program 2 times [2023-11-06 22:44:10,680 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:44:10,680 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [31576040] [2023-11-06 22:44:10,681 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:44:10,681 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:44:10,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:44:10,765 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-11-06 22:44:10,766 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:44:10,766 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [31576040] [2023-11-06 22:44:10,766 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [31576040] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:44:10,767 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:44:10,767 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-06 22:44:10,767 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [716048241] [2023-11-06 22:44:10,767 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:44:10,768 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 22:44:10,768 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:44:10,768 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 22:44:10,769 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 22:44:10,781 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 280 out of 632 [2023-11-06 22:44:10,783 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 103 places, 101 transitions, 254 flow. Second operand has 3 states, 3 states have (on average 282.0) internal successors, (846), 3 states have internal predecessors, (846), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:44:10,783 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:44:10,783 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 280 of 632 [2023-11-06 22:44:10,784 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 22:44:15,331 INFO L124 PetriNetUnfolderBase]: 33004/50614 cut-off events. [2023-11-06 22:44:15,332 INFO L125 PetriNetUnfolderBase]: For 141/141 co-relation queries the response was YES. [2023-11-06 22:44:15,409 INFO L83 FinitePrefix]: Finished finitePrefix Result has 98864 conditions, 50614 events. 33004/50614 cut-off events. For 141/141 co-relation queries the response was YES. Maximal size of possible extension queue 1613. Compared 379168 event pairs, 14388 based on Foata normal form. 0/32627 useless extension candidates. Maximal degree in co-relation 98829. Up to 48074 conditions per place. [2023-11-06 22:44:15,560 INFO L140 encePairwiseOnDemand]: 627/632 looper letters, 113 selfloop transitions, 2 changer transitions 0/127 dead transitions. [2023-11-06 22:44:15,561 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 105 places, 127 transitions, 536 flow [2023-11-06 22:44:15,561 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 22:44:15,561 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-06 22:44:15,565 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 954 transitions. [2023-11-06 22:44:15,566 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5031645569620253 [2023-11-06 22:44:15,566 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 954 transitions. [2023-11-06 22:44:15,567 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 954 transitions. [2023-11-06 22:44:15,568 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:44:15,568 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 954 transitions. [2023-11-06 22:44:15,571 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 318.0) internal successors, (954), 3 states have internal predecessors, (954), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:44:15,577 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 632.0) internal successors, (2528), 4 states have internal predecessors, (2528), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:44:15,578 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 632.0) internal successors, (2528), 4 states have internal predecessors, (2528), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:44:15,579 INFO L175 Difference]: Start difference. First operand has 103 places, 101 transitions, 254 flow. Second operand 3 states and 954 transitions. [2023-11-06 22:44:15,579 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 105 places, 127 transitions, 536 flow [2023-11-06 22:44:15,581 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 104 places, 127 transitions, 522 flow, removed 6 selfloop flow, removed 1 redundant places. [2023-11-06 22:44:15,584 INFO L231 Difference]: Finished difference. Result has 105 places, 102 transitions, 256 flow [2023-11-06 22:44:15,584 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=632, PETRI_DIFFERENCE_MINUEND_FLOW=240, PETRI_DIFFERENCE_MINUEND_PLACES=102, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=101, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=99, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=256, PETRI_PLACES=105, PETRI_TRANSITIONS=102} [2023-11-06 22:44:15,585 INFO L281 CegarLoopForPetriNet]: 95 programPoint places, 10 predicate places. [2023-11-06 22:44:15,585 INFO L495 AbstractCegarLoop]: Abstraction has has 105 places, 102 transitions, 256 flow [2023-11-06 22:44:15,586 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 282.0) internal successors, (846), 3 states have internal predecessors, (846), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:44:15,586 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:44:15,586 INFO L208 CegarLoopForPetriNet]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:44:15,587 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-11-06 22:44:15,587 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 28 more)] === [2023-11-06 22:44:15,587 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:44:15,588 INFO L85 PathProgramCache]: Analyzing trace with hash 494511286, now seen corresponding path program 1 times [2023-11-06 22:44:15,588 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:44:15,588 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [933046170] [2023-11-06 22:44:15,588 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:44:15,588 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:44:15,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:44:15,679 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:44:15,680 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:44:15,680 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [933046170] [2023-11-06 22:44:15,680 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [933046170] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-06 22:44:15,680 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1210722811] [2023-11-06 22:44:15,681 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:44:15,681 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:44:15,681 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac005182-51b2-47d5-b1b6-28f1315be75e/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:44:15,684 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac005182-51b2-47d5-b1b6-28f1315be75e/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 22:44:15,696 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac005182-51b2-47d5-b1b6-28f1315be75e/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-11-06 22:44:15,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:44:15,810 INFO L262 TraceCheckSpWp]: Trace formula consists of 145 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-06 22:44:15,812 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:44:15,836 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:44:15,837 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-06 22:44:15,899 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:44:15,900 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1210722811] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-06 22:44:15,900 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-06 22:44:15,900 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 12 [2023-11-06 22:44:15,900 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [680808610] [2023-11-06 22:44:15,900 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-06 22:44:15,901 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-11-06 22:44:15,901 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:44:15,902 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-11-06 22:44:15,902 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=78, Unknown=0, NotChecked=0, Total=156 [2023-11-06 22:44:15,946 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 279 out of 632 [2023-11-06 22:44:15,961 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 105 places, 102 transitions, 256 flow. Second operand has 13 states, 13 states have (on average 280.61538461538464) internal successors, (3648), 13 states have internal predecessors, (3648), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:44:15,969 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:44:15,969 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 279 of 632 [2023-11-06 22:44:15,970 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 22:44:20,703 INFO L124 PetriNetUnfolderBase]: 33472/50587 cut-off events. [2023-11-06 22:44:20,703 INFO L125 PetriNetUnfolderBase]: For 1418/1418 co-relation queries the response was YES. [2023-11-06 22:44:20,793 INFO L83 FinitePrefix]: Finished finitePrefix Result has 101131 conditions, 50587 events. 33472/50587 cut-off events. For 1418/1418 co-relation queries the response was YES. Maximal size of possible extension queue 1597. Compared 368374 event pairs, 29844 based on Foata normal form. 6/33165 useless extension candidates. Maximal degree in co-relation 101077. Up to 48097 conditions per place. [2023-11-06 22:44:20,962 INFO L140 encePairwiseOnDemand]: 629/632 looper letters, 85 selfloop transitions, 11 changer transitions 0/108 dead transitions. [2023-11-06 22:44:20,962 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 116 places, 108 transitions, 484 flow [2023-11-06 22:44:20,965 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-06 22:44:20,966 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2023-11-06 22:44:20,978 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 3449 transitions. [2023-11-06 22:44:20,981 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.45477320675105487 [2023-11-06 22:44:20,981 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 3449 transitions. [2023-11-06 22:44:20,981 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 3449 transitions. [2023-11-06 22:44:20,985 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:44:20,985 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 3449 transitions. [2023-11-06 22:44:20,995 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 287.4166666666667) internal successors, (3449), 12 states have internal predecessors, (3449), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:44:21,010 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 632.0) internal successors, (8216), 13 states have internal predecessors, (8216), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:44:21,013 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 632.0) internal successors, (8216), 13 states have internal predecessors, (8216), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:44:21,013 INFO L175 Difference]: Start difference. First operand has 105 places, 102 transitions, 256 flow. Second operand 12 states and 3449 transitions. [2023-11-06 22:44:21,013 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 116 places, 108 transitions, 484 flow [2023-11-06 22:44:21,019 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 115 places, 108 transitions, 482 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-06 22:44:21,021 INFO L231 Difference]: Finished difference. Result has 121 places, 108 transitions, 338 flow [2023-11-06 22:44:21,021 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=632, PETRI_DIFFERENCE_MINUEND_FLOW=254, PETRI_DIFFERENCE_MINUEND_PLACES=104, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=102, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=96, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=338, PETRI_PLACES=121, PETRI_TRANSITIONS=108} [2023-11-06 22:44:21,022 INFO L281 CegarLoopForPetriNet]: 95 programPoint places, 26 predicate places. [2023-11-06 22:44:21,022 INFO L495 AbstractCegarLoop]: Abstraction has has 121 places, 108 transitions, 338 flow [2023-11-06 22:44:21,023 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 280.61538461538464) internal successors, (3648), 13 states have internal predecessors, (3648), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:44:21,024 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:44:21,024 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 2, 2, 1, 1, 1, 1, 1, 1] [2023-11-06 22:44:21,032 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac005182-51b2-47d5-b1b6-28f1315be75e/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2023-11-06 22:44:21,229 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac005182-51b2-47d5-b1b6-28f1315be75e/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2023-11-06 22:44:21,229 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 28 more)] === [2023-11-06 22:44:21,230 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:44:21,230 INFO L85 PathProgramCache]: Analyzing trace with hash 587189739, now seen corresponding path program 1 times [2023-11-06 22:44:21,230 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:44:21,230 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [595935973] [2023-11-06 22:44:21,230 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:44:21,230 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:44:21,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:44:21,299 INFO L134 CoverageAnalysis]: Checked inductivity of 59 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 56 trivial. 0 not checked. [2023-11-06 22:44:21,300 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:44:21,300 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [595935973] [2023-11-06 22:44:21,300 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [595935973] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:44:21,300 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:44:21,301 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-06 22:44:21,303 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1598705750] [2023-11-06 22:44:21,303 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:44:21,303 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 22:44:21,304 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:44:21,304 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 22:44:21,304 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 22:44:21,318 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 279 out of 632 [2023-11-06 22:44:21,319 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 121 places, 108 transitions, 338 flow. Second operand has 3 states, 3 states have (on average 282.0) internal successors, (846), 3 states have internal predecessors, (846), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:44:21,319 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:44:21,319 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 279 of 632 [2023-11-06 22:44:21,319 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 22:44:26,051 INFO L124 PetriNetUnfolderBase]: 31385/49027 cut-off events. [2023-11-06 22:44:26,051 INFO L125 PetriNetUnfolderBase]: For 742/742 co-relation queries the response was YES. [2023-11-06 22:44:26,170 INFO L83 FinitePrefix]: Finished finitePrefix Result has 97369 conditions, 49027 events. 31385/49027 cut-off events. For 742/742 co-relation queries the response was YES. Maximal size of possible extension queue 1349. Compared 378335 event pairs, 2666 based on Foata normal form. 0/32720 useless extension candidates. Maximal degree in co-relation 97291. Up to 41936 conditions per place. [2023-11-06 22:44:26,311 INFO L140 encePairwiseOnDemand]: 628/632 looper letters, 139 selfloop transitions, 4 changer transitions 0/155 dead transitions. [2023-11-06 22:44:26,311 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 122 places, 155 transitions, 716 flow [2023-11-06 22:44:26,312 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 22:44:26,312 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-06 22:44:26,315 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 970 transitions. [2023-11-06 22:44:26,316 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5116033755274262 [2023-11-06 22:44:26,316 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 970 transitions. [2023-11-06 22:44:26,317 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 970 transitions. [2023-11-06 22:44:26,318 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:44:26,318 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 970 transitions. [2023-11-06 22:44:26,321 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 323.3333333333333) internal successors, (970), 3 states have internal predecessors, (970), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:44:26,325 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 632.0) internal successors, (2528), 4 states have internal predecessors, (2528), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:44:26,326 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 632.0) internal successors, (2528), 4 states have internal predecessors, (2528), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:44:26,326 INFO L175 Difference]: Start difference. First operand has 121 places, 108 transitions, 338 flow. Second operand 3 states and 970 transitions. [2023-11-06 22:44:26,326 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 122 places, 155 transitions, 716 flow [2023-11-06 22:44:26,329 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 117 places, 155 transitions, 668 flow, removed 19 selfloop flow, removed 5 redundant places. [2023-11-06 22:44:26,332 INFO L231 Difference]: Finished difference. Result has 118 places, 108 transitions, 302 flow [2023-11-06 22:44:26,332 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=632, PETRI_DIFFERENCE_MINUEND_FLOW=286, PETRI_DIFFERENCE_MINUEND_PLACES=115, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=107, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=103, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=302, PETRI_PLACES=118, PETRI_TRANSITIONS=108} [2023-11-06 22:44:26,333 INFO L281 CegarLoopForPetriNet]: 95 programPoint places, 23 predicate places. [2023-11-06 22:44:26,333 INFO L495 AbstractCegarLoop]: Abstraction has has 118 places, 108 transitions, 302 flow [2023-11-06 22:44:26,334 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 282.0) internal successors, (846), 3 states have internal predecessors, (846), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:44:26,334 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:44:26,334 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:44:26,334 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-11-06 22:44:26,334 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 28 more)] === [2023-11-06 22:44:26,335 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:44:26,335 INFO L85 PathProgramCache]: Analyzing trace with hash -1209635954, now seen corresponding path program 1 times [2023-11-06 22:44:26,335 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:44:26,335 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [288882405] [2023-11-06 22:44:26,335 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:44:26,336 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:44:26,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:44:26,557 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2023-11-06 22:44:26,558 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:44:26,558 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [288882405] [2023-11-06 22:44:26,558 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [288882405] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:44:26,558 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:44:26,558 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-06 22:44:26,559 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1247052948] [2023-11-06 22:44:26,559 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:44:26,559 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-06 22:44:26,560 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:44:26,560 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-06 22:44:26,560 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-11-06 22:44:26,755 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 269 out of 632 [2023-11-06 22:44:26,757 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 118 places, 108 transitions, 302 flow. Second operand has 6 states, 6 states have (on average 270.6666666666667) internal successors, (1624), 6 states have internal predecessors, (1624), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:44:26,757 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:44:26,757 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 269 of 632 [2023-11-06 22:44:26,757 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand