./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/weaver/chl-chromosome-symm.wvr.c --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_6037aec0-5f2d-4615-9b4f-2feb3e5cb29f/bin/uautomizer-verify-WvqO1wxjHP/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6037aec0-5f2d-4615-9b4f-2feb3e5cb29f/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_6037aec0-5f2d-4615-9b4f-2feb3e5cb29f/bin/uautomizer-verify-WvqO1wxjHP/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6037aec0-5f2d-4615-9b4f-2feb3e5cb29f/bin/uautomizer-verify-WvqO1wxjHP/config/AutomizerReach.xml -i ../../sv-benchmarks/c/weaver/chl-chromosome-symm.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6037aec0-5f2d-4615-9b4f-2feb3e5cb29f/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_6037aec0-5f2d-4615-9b4f-2feb3e5cb29f/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 c7fdb1595c27c144c3bf111946260cb3946663200a2d53f7fba5455031291c4f --- Real Ultimate output --- This is Ultimate 0.2.3-dev-e7bb482 [2023-11-06 23:07:09,286 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-06 23:07:09,411 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6037aec0-5f2d-4615-9b4f-2feb3e5cb29f/bin/uautomizer-verify-WvqO1wxjHP/config/svcomp-Overflow-32bit-Automizer_Default.epf [2023-11-06 23:07:09,425 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-06 23:07:09,426 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-06 23:07:09,466 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-06 23:07:09,468 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-06 23:07:09,468 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-06 23:07:09,469 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-06 23:07:09,474 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-06 23:07:09,475 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-06 23:07:09,476 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-06 23:07:09,476 INFO L153 SettingsManager]: * Use SBE=true [2023-11-06 23:07:09,478 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-06 23:07:09,478 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-06 23:07:09,479 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-06 23:07:09,479 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-06 23:07:09,480 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-06 23:07:09,480 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-06 23:07:09,481 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-06 23:07:09,481 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-06 23:07:09,482 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-06 23:07:09,482 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-06 23:07:09,482 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-06 23:07:09,483 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-06 23:07:09,483 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-06 23:07:09,484 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-06 23:07:09,484 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-06 23:07:09,485 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-06 23:07:09,485 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-06 23:07:09,487 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 23:07:09,487 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-06 23:07:09,487 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-06 23:07:09,487 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-11-06 23:07:09,488 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-06 23:07:09,488 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-06 23:07:09,488 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-06 23:07:09,488 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-06 23:07:09,489 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-06 23:07:09,489 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-06 23:07:09,489 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-06 23:07:09,489 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_6037aec0-5f2d-4615-9b4f-2feb3e5cb29f/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6037aec0-5f2d-4615-9b4f-2feb3e5cb29f/bin/uautomizer-verify-WvqO1wxjHP Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c7fdb1595c27c144c3bf111946260cb3946663200a2d53f7fba5455031291c4f [2023-11-06 23:07:09,854 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-06 23:07:09,890 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-06 23:07:09,894 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-06 23:07:09,895 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-06 23:07:09,896 INFO L274 PluginConnector]: CDTParser initialized [2023-11-06 23:07:09,897 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6037aec0-5f2d-4615-9b4f-2feb3e5cb29f/bin/uautomizer-verify-WvqO1wxjHP/../../sv-benchmarks/c/weaver/chl-chromosome-symm.wvr.c [2023-11-06 23:07:12,902 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-06 23:07:13,201 INFO L384 CDTParser]: Found 1 translation units. [2023-11-06 23:07:13,202 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6037aec0-5f2d-4615-9b4f-2feb3e5cb29f/sv-benchmarks/c/weaver/chl-chromosome-symm.wvr.c [2023-11-06 23:07:13,255 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6037aec0-5f2d-4615-9b4f-2feb3e5cb29f/bin/uautomizer-verify-WvqO1wxjHP/data/97443bac2/960e54e81e50465486e1e3528c91230b/FLAGee5672d4b [2023-11-06 23:07:13,277 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6037aec0-5f2d-4615-9b4f-2feb3e5cb29f/bin/uautomizer-verify-WvqO1wxjHP/data/97443bac2/960e54e81e50465486e1e3528c91230b [2023-11-06 23:07:13,283 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-06 23:07:13,285 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-06 23:07:13,289 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-06 23:07:13,290 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-06 23:07:13,296 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-06 23:07:13,297 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 11:07:13" (1/1) ... [2023-11-06 23:07:13,298 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@61a7a498 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:07:13, skipping insertion in model container [2023-11-06 23:07:13,298 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 11:07:13" (1/1) ... [2023-11-06 23:07:13,340 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-06 23:07:13,574 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 23:07:13,586 INFO L202 MainTranslator]: Completed pre-run [2023-11-06 23:07:13,619 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 23:07:13,638 INFO L206 MainTranslator]: Completed translation [2023-11-06 23:07:13,638 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:07:13 WrapperNode [2023-11-06 23:07:13,639 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-06 23:07:13,640 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-06 23:07:13,640 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-06 23:07:13,641 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-06 23:07:13,650 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:07:13" (1/1) ... [2023-11-06 23:07:13,661 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:07:13" (1/1) ... [2023-11-06 23:07:13,697 INFO L138 Inliner]: procedures = 25, calls = 38, calls flagged for inlining = 16, calls inlined = 20, statements flattened = 237 [2023-11-06 23:07:13,697 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-06 23:07:13,698 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-06 23:07:13,698 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-06 23:07:13,698 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-06 23:07:13,709 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:07:13" (1/1) ... [2023-11-06 23:07:13,710 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:07:13" (1/1) ... [2023-11-06 23:07:13,714 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:07:13" (1/1) ... [2023-11-06 23:07:13,715 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:07:13" (1/1) ... [2023-11-06 23:07:13,727 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:07:13" (1/1) ... [2023-11-06 23:07:13,732 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:07:13" (1/1) ... [2023-11-06 23:07:13,735 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:07:13" (1/1) ... [2023-11-06 23:07:13,738 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:07:13" (1/1) ... [2023-11-06 23:07:13,743 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-06 23:07:13,744 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-06 23:07:13,744 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-06 23:07:13,744 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-06 23:07:13,745 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:07:13" (1/1) ... [2023-11-06 23:07:13,753 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 23:07:13,782 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6037aec0-5f2d-4615-9b4f-2feb3e5cb29f/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 23:07:13,811 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6037aec0-5f2d-4615-9b4f-2feb3e5cb29f/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-06 23:07:13,837 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6037aec0-5f2d-4615-9b4f-2feb3e5cb29f/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-06 23:07:13,870 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-06 23:07:13,871 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-06 23:07:13,871 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-06 23:07:13,871 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-06 23:07:13,872 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-11-06 23:07:13,872 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-11-06 23:07:13,872 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-11-06 23:07:13,873 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-11-06 23:07:13,873 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-06 23:07:13,873 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-06 23:07:13,874 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-06 23:07:13,874 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-06 23:07:13,874 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-06 23:07:13,876 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 23:07:14,067 INFO L236 CfgBuilder]: Building ICFG [2023-11-06 23:07:14,070 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-06 23:07:14,679 INFO L277 CfgBuilder]: Performing block encoding [2023-11-06 23:07:14,692 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-06 23:07:14,700 INFO L302 CfgBuilder]: Removed 4 assume(true) statements. [2023-11-06 23:07:14,705 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 11:07:14 BoogieIcfgContainer [2023-11-06 23:07:14,705 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-06 23:07:14,709 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-06 23:07:14,709 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-06 23:07:14,713 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-06 23:07:14,714 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 11:07:13" (1/3) ... [2023-11-06 23:07:14,715 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3564d078 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 11:07:14, skipping insertion in model container [2023-11-06 23:07:14,715 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:07:13" (2/3) ... [2023-11-06 23:07:14,717 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3564d078 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 11:07:14, skipping insertion in model container [2023-11-06 23:07:14,718 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 11:07:14" (3/3) ... [2023-11-06 23:07:14,719 INFO L112 eAbstractionObserver]: Analyzing ICFG chl-chromosome-symm.wvr.c [2023-11-06 23:07:14,729 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-11-06 23:07:14,740 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-06 23:07:14,740 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 20 error locations. [2023-11-06 23:07:14,740 INFO L519 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-06 23:07:14,883 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2023-11-06 23:07:14,937 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 308 places, 326 transitions, 666 flow [2023-11-06 23:07:15,079 INFO L124 PetriNetUnfolderBase]: 25/324 cut-off events. [2023-11-06 23:07:15,079 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2023-11-06 23:07:15,088 INFO L83 FinitePrefix]: Finished finitePrefix Result has 333 conditions, 324 events. 25/324 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 545 event pairs, 0 based on Foata normal form. 0/279 useless extension candidates. Maximal degree in co-relation 202. Up to 2 conditions per place. [2023-11-06 23:07:15,088 INFO L82 GeneralOperation]: Start removeDead. Operand has 308 places, 326 transitions, 666 flow [2023-11-06 23:07:15,097 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 271 places, 286 transitions, 581 flow [2023-11-06 23:07:15,101 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-11-06 23:07:15,111 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 271 places, 286 transitions, 581 flow [2023-11-06 23:07:15,114 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 271 places, 286 transitions, 581 flow [2023-11-06 23:07:15,115 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 271 places, 286 transitions, 581 flow [2023-11-06 23:07:15,235 INFO L124 PetriNetUnfolderBase]: 22/286 cut-off events. [2023-11-06 23:07:15,235 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2023-11-06 23:07:15,241 INFO L83 FinitePrefix]: Finished finitePrefix Result has 294 conditions, 286 events. 22/286 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 399 event pairs, 0 based on Foata normal form. 0/244 useless extension candidates. Maximal degree in co-relation 202. Up to 2 conditions per place. [2023-11-06 23:07:15,254 INFO L119 LiptonReduction]: Number of co-enabled transitions 14852 [2023-11-06 23:07:35,032 INFO L134 LiptonReduction]: Checked pairs total: 15568 [2023-11-06 23:07:35,032 INFO L136 LiptonReduction]: Total number of compositions: 377 [2023-11-06 23:07:35,048 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-06 23:07:35,056 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;@78ff048c, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-06 23:07:35,056 INFO L358 AbstractCegarLoop]: Starting to check reachability of 38 error locations. [2023-11-06 23:07:35,060 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-06 23:07:35,060 INFO L124 PetriNetUnfolderBase]: 1/2 cut-off events. [2023-11-06 23:07:35,060 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-06 23:07:35,060 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 23:07:35,061 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1] [2023-11-06 23:07:35,062 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 35 more)] === [2023-11-06 23:07:35,067 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 23:07:35,067 INFO L85 PathProgramCache]: Analyzing trace with hash 41648, now seen corresponding path program 1 times [2023-11-06 23:07:35,077 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 23:07:35,077 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [664942162] [2023-11-06 23:07:35,078 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 23:07:35,078 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 23:07:35,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:07:35,426 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 23:07:35,427 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 23:07:35,427 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [664942162] [2023-11-06 23:07:35,428 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [664942162] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 23:07:35,428 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 23:07:35,428 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-06 23:07:35,430 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [783636415] [2023-11-06 23:07:35,431 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 23:07:35,438 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 23:07:35,448 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 23:07:35,473 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 23:07:35,474 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 23:07:35,514 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 294 out of 703 [2023-11-06 23:07:35,520 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 41 places, 38 transitions, 85 flow. Second operand has 3 states, 3 states have (on average 294.6666666666667) internal successors, (884), 3 states have internal predecessors, (884), 0 states have call successors, (0), 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 23:07:35,520 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 23:07:35,521 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 294 of 703 [2023-11-06 23:07:35,522 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 23:07:35,733 INFO L124 PetriNetUnfolderBase]: 279/480 cut-off events. [2023-11-06 23:07:35,733 INFO L125 PetriNetUnfolderBase]: For 29/29 co-relation queries the response was YES. [2023-11-06 23:07:35,734 INFO L83 FinitePrefix]: Finished finitePrefix Result has 994 conditions, 480 events. 279/480 cut-off events. For 29/29 co-relation queries the response was YES. Maximal size of possible extension queue 86. Compared 2059 event pairs, 237 based on Foata normal form. 0/218 useless extension candidates. Maximal degree in co-relation 900. Up to 475 conditions per place. [2023-11-06 23:07:35,738 INFO L140 encePairwiseOnDemand]: 694/703 looper letters, 29 selfloop transitions, 2 changer transitions 0/31 dead transitions. [2023-11-06 23:07:35,739 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 36 places, 31 transitions, 133 flow [2023-11-06 23:07:35,740 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 23:07:35,742 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-06 23:07:35,761 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 920 transitions. [2023-11-06 23:07:35,767 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4362256993835941 [2023-11-06 23:07:35,768 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 920 transitions. [2023-11-06 23:07:35,768 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 920 transitions. [2023-11-06 23:07:35,773 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 23:07:35,775 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 920 transitions. [2023-11-06 23:07:35,782 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 306.6666666666667) internal successors, (920), 3 states have internal predecessors, (920), 0 states have call successors, (0), 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 23:07:35,794 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 703.0) internal successors, (2812), 4 states have internal predecessors, (2812), 0 states have call successors, (0), 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 23:07:35,796 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 703.0) internal successors, (2812), 4 states have internal predecessors, (2812), 0 states have call successors, (0), 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 23:07:35,798 INFO L175 Difference]: Start difference. First operand has 41 places, 38 transitions, 85 flow. Second operand 3 states and 920 transitions. [2023-11-06 23:07:35,800 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 36 places, 31 transitions, 133 flow [2023-11-06 23:07:35,803 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 33 places, 31 transitions, 128 flow, removed 0 selfloop flow, removed 3 redundant places. [2023-11-06 23:07:35,805 INFO L231 Difference]: Finished difference. Result has 33 places, 31 transitions, 70 flow [2023-11-06 23:07:35,807 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=703, PETRI_DIFFERENCE_MINUEND_FLOW=66, PETRI_DIFFERENCE_MINUEND_PLACES=31, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=31, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=29, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=70, PETRI_PLACES=33, PETRI_TRANSITIONS=31} [2023-11-06 23:07:35,816 INFO L281 CegarLoopForPetriNet]: 41 programPoint places, -8 predicate places. [2023-11-06 23:07:35,816 INFO L495 AbstractCegarLoop]: Abstraction has has 33 places, 31 transitions, 70 flow [2023-11-06 23:07:35,817 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 294.6666666666667) internal successors, (884), 3 states have internal predecessors, (884), 0 states have call successors, (0), 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 23:07:35,817 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 23:07:35,817 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1] [2023-11-06 23:07:35,818 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-06 23:07:35,818 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 35 more)] === [2023-11-06 23:07:35,820 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 23:07:35,820 INFO L85 PathProgramCache]: Analyzing trace with hash 41691, now seen corresponding path program 1 times [2023-11-06 23:07:35,821 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 23:07:35,821 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [744477037] [2023-11-06 23:07:35,821 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 23:07:35,822 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 23:07:35,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:07:35,924 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 23:07:35,924 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 23:07:35,924 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [744477037] [2023-11-06 23:07:35,924 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [744477037] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 23:07:35,925 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 23:07:35,925 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-06 23:07:35,925 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1469000612] [2023-11-06 23:07:35,925 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 23:07:35,926 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 23:07:35,927 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 23:07:35,927 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 23:07:35,927 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 23:07:35,971 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 294 out of 703 [2023-11-06 23:07:35,973 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 33 places, 31 transitions, 70 flow. Second operand has 3 states, 3 states have (on average 294.6666666666667) internal successors, (884), 3 states have internal predecessors, (884), 0 states have call successors, (0), 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 23:07:35,973 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 23:07:35,973 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 294 of 703 [2023-11-06 23:07:35,974 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 23:07:36,138 INFO L124 PetriNetUnfolderBase]: 281/484 cut-off events. [2023-11-06 23:07:36,138 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2023-11-06 23:07:36,139 INFO L83 FinitePrefix]: Finished finitePrefix Result has 995 conditions, 484 events. 281/484 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 86. Compared 2061 event pairs, 237 based on Foata normal form. 0/222 useless extension candidates. Maximal degree in co-relation 967. Up to 482 conditions per place. [2023-11-06 23:07:36,145 INFO L140 encePairwiseOnDemand]: 696/703 looper letters, 30 selfloop transitions, 5 changer transitions 0/35 dead transitions. [2023-11-06 23:07:36,145 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 35 places, 35 transitions, 150 flow [2023-11-06 23:07:36,146 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 23:07:36,146 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-06 23:07:36,149 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 919 transitions. [2023-11-06 23:07:36,150 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.43575154101469893 [2023-11-06 23:07:36,150 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 919 transitions. [2023-11-06 23:07:36,150 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 919 transitions. [2023-11-06 23:07:36,151 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 23:07:36,151 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 919 transitions. [2023-11-06 23:07:36,155 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 306.3333333333333) internal successors, (919), 3 states have internal predecessors, (919), 0 states have call successors, (0), 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 23:07:36,160 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 703.0) internal successors, (2812), 4 states have internal predecessors, (2812), 0 states have call successors, (0), 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 23:07:36,163 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 703.0) internal successors, (2812), 4 states have internal predecessors, (2812), 0 states have call successors, (0), 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 23:07:36,164 INFO L175 Difference]: Start difference. First operand has 33 places, 31 transitions, 70 flow. Second operand 3 states and 919 transitions. [2023-11-06 23:07:36,167 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 35 places, 35 transitions, 150 flow [2023-11-06 23:07:36,169 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 33 places, 35 transitions, 144 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-06 23:07:36,170 INFO L231 Difference]: Finished difference. Result has 35 places, 35 transitions, 106 flow [2023-11-06 23:07:36,170 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=703, PETRI_DIFFERENCE_MINUEND_FLOW=66, PETRI_DIFFERENCE_MINUEND_PLACES=31, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=31, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=26, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=106, PETRI_PLACES=35, PETRI_TRANSITIONS=35} [2023-11-06 23:07:36,172 INFO L281 CegarLoopForPetriNet]: 41 programPoint places, -6 predicate places. [2023-11-06 23:07:36,172 INFO L495 AbstractCegarLoop]: Abstraction has has 35 places, 35 transitions, 106 flow [2023-11-06 23:07:36,174 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 294.6666666666667) internal successors, (884), 3 states have internal predecessors, (884), 0 states have call successors, (0), 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 23:07:36,174 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 23:07:36,174 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2023-11-06 23:07:36,181 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-06 23:07:36,182 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 35 more)] === [2023-11-06 23:07:36,185 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 23:07:36,185 INFO L85 PathProgramCache]: Analyzing trace with hash 1293688, now seen corresponding path program 1 times [2023-11-06 23:07:36,185 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 23:07:36,186 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [656826525] [2023-11-06 23:07:36,186 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 23:07:36,186 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 23:07:36,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:07:36,377 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 23:07:36,378 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 23:07:36,378 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [656826525] [2023-11-06 23:07:36,378 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [656826525] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-06 23:07:36,379 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1516925004] [2023-11-06 23:07:36,379 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 23:07:36,379 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 23:07:36,380 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6037aec0-5f2d-4615-9b4f-2feb3e5cb29f/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 23:07:36,388 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6037aec0-5f2d-4615-9b4f-2feb3e5cb29f/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 23:07:36,458 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6037aec0-5f2d-4615-9b4f-2feb3e5cb29f/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-06 23:07:36,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:07:36,570 INFO L262 TraceCheckSpWp]: Trace formula consists of 90 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-06 23:07:36,574 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 23:07:36,610 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 23:07:36,610 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-06 23:07:36,639 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 23:07:36,641 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1516925004] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-06 23:07:36,646 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-06 23:07:36,646 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [2, 2, 2] total 4 [2023-11-06 23:07:36,647 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1517133122] [2023-11-06 23:07:36,647 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-06 23:07:36,648 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-06 23:07:36,648 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 23:07:36,649 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-06 23:07:36,649 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-06 23:07:36,751 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 294 out of 703 [2023-11-06 23:07:36,756 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 35 places, 35 transitions, 106 flow. Second operand has 6 states, 6 states have (on average 295.0) internal successors, (1770), 6 states have internal predecessors, (1770), 0 states have call successors, (0), 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 23:07:36,756 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 23:07:36,757 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 294 of 703 [2023-11-06 23:07:36,757 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 23:07:37,043 INFO L124 PetriNetUnfolderBase]: 287/496 cut-off events. [2023-11-06 23:07:37,043 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2023-11-06 23:07:37,044 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1048 conditions, 496 events. 287/496 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 85. Compared 2119 event pairs, 237 based on Foata normal form. 0/231 useless extension candidates. Maximal degree in co-relation 967. Up to 485 conditions per place. [2023-11-06 23:07:37,049 INFO L140 encePairwiseOnDemand]: 696/703 looper letters, 30 selfloop transitions, 17 changer transitions 0/47 dead transitions. [2023-11-06 23:07:37,049 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 40 places, 47 transitions, 254 flow [2023-11-06 23:07:37,050 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-06 23:07:37,050 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-06 23:07:37,057 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1817 transitions. [2023-11-06 23:07:37,059 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4307728781412992 [2023-11-06 23:07:37,059 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1817 transitions. [2023-11-06 23:07:37,059 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1817 transitions. [2023-11-06 23:07:37,061 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 23:07:37,061 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1817 transitions. [2023-11-06 23:07:37,069 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 302.8333333333333) internal successors, (1817), 6 states have internal predecessors, (1817), 0 states have call successors, (0), 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 23:07:37,081 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 703.0) internal successors, (4921), 7 states have internal predecessors, (4921), 0 states have call successors, (0), 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 23:07:37,086 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 703.0) internal successors, (4921), 7 states have internal predecessors, (4921), 0 states have call successors, (0), 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 23:07:37,087 INFO L175 Difference]: Start difference. First operand has 35 places, 35 transitions, 106 flow. Second operand 6 states and 1817 transitions. [2023-11-06 23:07:37,087 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 40 places, 47 transitions, 254 flow [2023-11-06 23:07:37,089 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 38 places, 47 transitions, 238 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-06 23:07:37,091 INFO L231 Difference]: Finished difference. Result has 41 places, 47 transitions, 214 flow [2023-11-06 23:07:37,091 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=703, PETRI_DIFFERENCE_MINUEND_FLOW=96, PETRI_DIFFERENCE_MINUEND_PLACES=33, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=35, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=27, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=214, PETRI_PLACES=41, PETRI_TRANSITIONS=47} [2023-11-06 23:07:37,094 INFO L281 CegarLoopForPetriNet]: 41 programPoint places, 0 predicate places. [2023-11-06 23:07:37,094 INFO L495 AbstractCegarLoop]: Abstraction has has 41 places, 47 transitions, 214 flow [2023-11-06 23:07:37,096 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 295.0) internal successors, (1770), 6 states have internal predecessors, (1770), 0 states have call successors, (0), 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 23:07:37,096 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 23:07:37,097 INFO L208 CegarLoopForPetriNet]: trace histogram [4, 1, 1] [2023-11-06 23:07:37,111 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6037aec0-5f2d-4615-9b4f-2feb3e5cb29f/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-06 23:07:37,311 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6037aec0-5f2d-4615-9b4f-2feb3e5cb29f/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2023-11-06 23:07:37,312 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 35 more)] === [2023-11-06 23:07:37,312 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 23:07:37,312 INFO L85 PathProgramCache]: Analyzing trace with hash -113188325, now seen corresponding path program 2 times [2023-11-06 23:07:37,313 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 23:07:37,313 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2123529050] [2023-11-06 23:07:37,313 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 23:07:37,314 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 23:07:37,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:07:37,468 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 23:07:37,468 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 23:07:37,470 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2123529050] [2023-11-06 23:07:37,471 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2123529050] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-06 23:07:37,471 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1974048681] [2023-11-06 23:07:37,471 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-06 23:07:37,472 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 23:07:37,472 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6037aec0-5f2d-4615-9b4f-2feb3e5cb29f/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 23:07:37,473 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6037aec0-5f2d-4615-9b4f-2feb3e5cb29f/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 23:07:37,504 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6037aec0-5f2d-4615-9b4f-2feb3e5cb29f/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-06 23:07:37,582 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-11-06 23:07:37,582 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-06 23:07:37,584 INFO L262 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-06 23:07:37,585 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 23:07:37,604 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 23:07:37,604 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 23:07:37,604 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1974048681] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 23:07:37,605 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-06 23:07:37,605 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [5] total 6 [2023-11-06 23:07:37,605 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1320645326] [2023-11-06 23:07:37,605 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 23:07:37,606 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 23:07:37,606 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 23:07:37,606 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 23:07:37,607 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2023-11-06 23:07:37,641 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 298 out of 703 [2023-11-06 23:07:37,644 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 41 places, 47 transitions, 214 flow. Second operand has 3 states, 3 states have (on average 299.0) internal successors, (897), 3 states have internal predecessors, (897), 0 states have call successors, (0), 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 23:07:37,644 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 23:07:37,644 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 298 of 703 [2023-11-06 23:07:37,644 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 23:07:37,823 INFO L124 PetriNetUnfolderBase]: 287/494 cut-off events. [2023-11-06 23:07:37,824 INFO L125 PetriNetUnfolderBase]: For 9/9 co-relation queries the response was YES. [2023-11-06 23:07:37,825 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1069 conditions, 494 events. 287/494 cut-off events. For 9/9 co-relation queries the response was YES. Maximal size of possible extension queue 85. Compared 2086 event pairs, 237 based on Foata normal form. 2/234 useless extension candidates. Maximal degree in co-relation 1016. Up to 479 conditions per place. [2023-11-06 23:07:37,829 INFO L140 encePairwiseOnDemand]: 699/703 looper letters, 39 selfloop transitions, 6 changer transitions 0/45 dead transitions. [2023-11-06 23:07:37,829 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 41 places, 45 transitions, 284 flow [2023-11-06 23:07:37,830 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 23:07:37,830 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-06 23:07:37,834 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 925 transitions. [2023-11-06 23:07:37,835 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.43859649122807015 [2023-11-06 23:07:37,835 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 925 transitions. [2023-11-06 23:07:37,835 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 925 transitions. [2023-11-06 23:07:37,836 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 23:07:37,837 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 925 transitions. [2023-11-06 23:07:37,841 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 308.3333333333333) internal successors, (925), 3 states have internal predecessors, (925), 0 states have call successors, (0), 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 23:07:37,848 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 703.0) internal successors, (2812), 4 states have internal predecessors, (2812), 0 states have call successors, (0), 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 23:07:37,851 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 703.0) internal successors, (2812), 4 states have internal predecessors, (2812), 0 states have call successors, (0), 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 23:07:37,851 INFO L175 Difference]: Start difference. First operand has 41 places, 47 transitions, 214 flow. Second operand 3 states and 925 transitions. [2023-11-06 23:07:37,851 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 41 places, 45 transitions, 284 flow [2023-11-06 23:07:37,853 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 36 places, 45 transitions, 226 flow, removed 12 selfloop flow, removed 5 redundant places. [2023-11-06 23:07:37,855 INFO L231 Difference]: Finished difference. Result has 36 places, 45 transitions, 148 flow [2023-11-06 23:07:37,856 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=703, PETRI_DIFFERENCE_MINUEND_FLOW=136, PETRI_DIFFERENCE_MINUEND_PLACES=34, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=45, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=39, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=148, PETRI_PLACES=36, PETRI_TRANSITIONS=45} [2023-11-06 23:07:37,857 INFO L281 CegarLoopForPetriNet]: 41 programPoint places, -5 predicate places. [2023-11-06 23:07:37,857 INFO L495 AbstractCegarLoop]: Abstraction has has 36 places, 45 transitions, 148 flow [2023-11-06 23:07:37,858 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 299.0) internal successors, (897), 3 states have internal predecessors, (897), 0 states have call successors, (0), 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 23:07:37,858 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 23:07:37,859 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-11-06 23:07:37,864 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6037aec0-5f2d-4615-9b4f-2feb3e5cb29f/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-11-06 23:07:38,065 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6037aec0-5f2d-4615-9b4f-2feb3e5cb29f/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 23:07:38,065 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 35 more)] === [2023-11-06 23:07:38,065 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 23:07:38,066 INFO L85 PathProgramCache]: Analyzing trace with hash -1754414359, now seen corresponding path program 1 times [2023-11-06 23:07:38,066 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 23:07:38,066 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1183827805] [2023-11-06 23:07:38,066 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 23:07:38,066 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 23:07:38,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:07:38,223 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 23:07:38,224 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 23:07:38,224 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1183827805] [2023-11-06 23:07:38,224 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1183827805] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 23:07:38,224 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 23:07:38,225 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-06 23:07:38,225 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2060490394] [2023-11-06 23:07:38,225 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 23:07:38,226 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 23:07:38,226 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 23:07:38,226 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 23:07:38,227 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 23:07:38,279 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 292 out of 703 [2023-11-06 23:07:38,281 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 36 places, 45 transitions, 148 flow. Second operand has 3 states, 3 states have (on average 294.3333333333333) internal successors, (883), 3 states have internal predecessors, (883), 0 states have call successors, (0), 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 23:07:38,281 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 23:07:38,282 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 292 of 703 [2023-11-06 23:07:38,282 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 23:07:38,460 INFO L124 PetriNetUnfolderBase]: 285/492 cut-off events. [2023-11-06 23:07:38,460 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2023-11-06 23:07:38,461 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1033 conditions, 492 events. 285/492 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 85. Compared 2091 event pairs, 237 based on Foata normal form. 1/231 useless extension candidates. Maximal degree in co-relation 967. Up to 488 conditions per place. [2023-11-06 23:07:38,465 INFO L140 encePairwiseOnDemand]: 698/703 looper letters, 36 selfloop transitions, 7 changer transitions 0/43 dead transitions. [2023-11-06 23:07:38,466 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 38 places, 43 transitions, 224 flow [2023-11-06 23:07:38,466 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 23:07:38,466 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-06 23:07:38,470 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 909 transitions. [2023-11-06 23:07:38,471 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4310099573257468 [2023-11-06 23:07:38,471 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 909 transitions. [2023-11-06 23:07:38,471 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 909 transitions. [2023-11-06 23:07:38,473 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 23:07:38,473 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 909 transitions. [2023-11-06 23:07:38,477 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 303.0) internal successors, (909), 3 states have internal predecessors, (909), 0 states have call successors, (0), 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 23:07:38,485 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 703.0) internal successors, (2812), 4 states have internal predecessors, (2812), 0 states have call successors, (0), 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 23:07:38,489 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 703.0) internal successors, (2812), 4 states have internal predecessors, (2812), 0 states have call successors, (0), 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 23:07:38,489 INFO L175 Difference]: Start difference. First operand has 36 places, 45 transitions, 148 flow. Second operand 3 states and 909 transitions. [2023-11-06 23:07:38,489 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 38 places, 43 transitions, 224 flow [2023-11-06 23:07:38,491 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 36 places, 43 transitions, 214 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-06 23:07:38,492 INFO L231 Difference]: Finished difference. Result has 36 places, 43 transitions, 142 flow [2023-11-06 23:07:38,493 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=703, PETRI_DIFFERENCE_MINUEND_FLOW=128, PETRI_DIFFERENCE_MINUEND_PLACES=34, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=43, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=36, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=142, PETRI_PLACES=36, PETRI_TRANSITIONS=43} [2023-11-06 23:07:38,494 INFO L281 CegarLoopForPetriNet]: 41 programPoint places, -5 predicate places. [2023-11-06 23:07:38,494 INFO L495 AbstractCegarLoop]: Abstraction has has 36 places, 43 transitions, 142 flow [2023-11-06 23:07:38,495 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 294.3333333333333) internal successors, (883), 3 states have internal predecessors, (883), 0 states have call successors, (0), 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 23:07:38,496 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 23:07:38,496 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 23:07:38,496 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-06 23:07:38,496 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting thread1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 35 more)] === [2023-11-06 23:07:38,497 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 23:07:38,497 INFO L85 PathProgramCache]: Analyzing trace with hash -957815456, now seen corresponding path program 1 times [2023-11-06 23:07:38,497 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 23:07:38,498 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1491977858] [2023-11-06 23:07:38,498 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 23:07:38,498 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 23:07:38,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:07:38,581 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-06 23:07:38,582 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 23:07:38,582 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1491977858] [2023-11-06 23:07:38,582 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1491977858] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 23:07:38,583 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 23:07:38,583 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-06 23:07:38,583 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2048064327] [2023-11-06 23:07:38,583 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 23:07:38,584 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 23:07:38,584 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 23:07:38,585 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 23:07:38,585 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 23:07:38,601 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 302 out of 703 [2023-11-06 23:07:38,603 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 36 places, 43 transitions, 142 flow. Second operand has 3 states, 3 states have (on average 305.0) internal successors, (915), 3 states have internal predecessors, (915), 0 states have call successors, (0), 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 23:07:38,604 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 23:07:38,604 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 302 of 703 [2023-11-06 23:07:38,604 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 23:07:38,879 INFO L124 PetriNetUnfolderBase]: 483/832 cut-off events. [2023-11-06 23:07:38,880 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-06 23:07:38,881 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1729 conditions, 832 events. 483/832 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 89. Compared 4135 event pairs, 237 based on Foata normal form. 0/384 useless extension candidates. Maximal degree in co-relation 1685. Up to 493 conditions per place. [2023-11-06 23:07:38,888 INFO L140 encePairwiseOnDemand]: 699/703 looper letters, 61 selfloop transitions, 2 changer transitions 0/63 dead transitions. [2023-11-06 23:07:38,888 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 38 places, 63 transitions, 311 flow [2023-11-06 23:07:38,889 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 23:07:38,889 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-06 23:07:38,893 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 957 transitions. [2023-11-06 23:07:38,894 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.45376955903271693 [2023-11-06 23:07:38,894 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 957 transitions. [2023-11-06 23:07:38,894 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 957 transitions. [2023-11-06 23:07:38,896 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 23:07:38,896 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 957 transitions. [2023-11-06 23:07:38,900 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 319.0) internal successors, (957), 3 states have internal predecessors, (957), 0 states have call successors, (0), 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 23:07:38,906 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 703.0) internal successors, (2812), 4 states have internal predecessors, (2812), 0 states have call successors, (0), 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 23:07:38,908 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 703.0) internal successors, (2812), 4 states have internal predecessors, (2812), 0 states have call successors, (0), 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 23:07:38,908 INFO L175 Difference]: Start difference. First operand has 36 places, 43 transitions, 142 flow. Second operand 3 states and 957 transitions. [2023-11-06 23:07:38,908 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 38 places, 63 transitions, 311 flow [2023-11-06 23:07:38,910 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 36 places, 63 transitions, 297 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-06 23:07:38,912 INFO L231 Difference]: Finished difference. Result has 37 places, 44 transitions, 142 flow [2023-11-06 23:07:38,912 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=703, PETRI_DIFFERENCE_MINUEND_FLOW=128, PETRI_DIFFERENCE_MINUEND_PLACES=34, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=43, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=41, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=142, PETRI_PLACES=37, PETRI_TRANSITIONS=44} [2023-11-06 23:07:38,913 INFO L281 CegarLoopForPetriNet]: 41 programPoint places, -4 predicate places. [2023-11-06 23:07:38,913 INFO L495 AbstractCegarLoop]: Abstraction has has 37 places, 44 transitions, 142 flow [2023-11-06 23:07:38,914 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 305.0) internal successors, (915), 3 states have internal predecessors, (915), 0 states have call successors, (0), 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 23:07:38,915 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 23:07:38,915 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 23:07:38,915 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-06 23:07:38,915 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 35 more)] === [2023-11-06 23:07:38,916 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 23:07:38,916 INFO L85 PathProgramCache]: Analyzing trace with hash -957815529, now seen corresponding path program 1 times [2023-11-06 23:07:38,916 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 23:07:38,917 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1567341597] [2023-11-06 23:07:38,917 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 23:07:38,917 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 23:07:38,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:07:39,064 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-06 23:07:39,064 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 23:07:39,065 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1567341597] [2023-11-06 23:07:39,065 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1567341597] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-06 23:07:39,065 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [819887635] [2023-11-06 23:07:39,065 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 23:07:39,065 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 23:07:39,066 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6037aec0-5f2d-4615-9b4f-2feb3e5cb29f/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 23:07:39,067 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6037aec0-5f2d-4615-9b4f-2feb3e5cb29f/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 23:07:39,073 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6037aec0-5f2d-4615-9b4f-2feb3e5cb29f/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-06 23:07:39,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:07:39,204 INFO L262 TraceCheckSpWp]: Trace formula consists of 159 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-06 23:07:39,205 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 23:07:39,252 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-06 23:07:39,252 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-06 23:07:39,289 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-06 23:07:39,289 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [819887635] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-06 23:07:39,289 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-06 23:07:39,289 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 7 [2023-11-06 23:07:39,290 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [249315599] [2023-11-06 23:07:39,290 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-06 23:07:39,291 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-06 23:07:39,292 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 23:07:39,292 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-06 23:07:39,292 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=29, Unknown=0, NotChecked=0, Total=56 [2023-11-06 23:07:39,462 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 288 out of 703 [2023-11-06 23:07:39,466 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 37 places, 44 transitions, 142 flow. Second operand has 8 states, 8 states have (on average 289.875) internal successors, (2319), 8 states have internal predecessors, (2319), 0 states have call successors, (0), 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 23:07:39,466 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 23:07:39,466 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 288 of 703 [2023-11-06 23:07:39,466 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 23:07:39,754 INFO L124 PetriNetUnfolderBase]: 477/826 cut-off events. [2023-11-06 23:07:39,754 INFO L125 PetriNetUnfolderBase]: For 91/91 co-relation queries the response was YES. [2023-11-06 23:07:39,755 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1813 conditions, 826 events. 477/826 cut-off events. For 91/91 co-relation queries the response was YES. Maximal size of possible extension queue 100. Compared 3930 event pairs, 419 based on Foata normal form. 0/416 useless extension candidates. Maximal degree in co-relation 1769. Up to 819 conditions per place. [2023-11-06 23:07:39,762 INFO L140 encePairwiseOnDemand]: 698/703 looper letters, 28 selfloop transitions, 10 changer transitions 0/38 dead transitions. [2023-11-06 23:07:39,762 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 42 places, 38 transitions, 194 flow [2023-11-06 23:07:39,763 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-06 23:07:39,763 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-06 23:07:39,771 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1771 transitions. [2023-11-06 23:07:39,773 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.41986723565670936 [2023-11-06 23:07:39,773 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1771 transitions. [2023-11-06 23:07:39,773 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1771 transitions. [2023-11-06 23:07:39,775 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 23:07:39,776 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1771 transitions. [2023-11-06 23:07:39,782 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 295.1666666666667) internal successors, (1771), 6 states have internal predecessors, (1771), 0 states have call successors, (0), 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 23:07:39,796 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 703.0) internal successors, (4921), 7 states have internal predecessors, (4921), 0 states have call successors, (0), 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 23:07:39,799 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 703.0) internal successors, (4921), 7 states have internal predecessors, (4921), 0 states have call successors, (0), 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 23:07:39,799 INFO L175 Difference]: Start difference. First operand has 37 places, 44 transitions, 142 flow. Second operand 6 states and 1771 transitions. [2023-11-06 23:07:39,800 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 42 places, 38 transitions, 194 flow [2023-11-06 23:07:39,803 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 41 places, 38 transitions, 192 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-06 23:07:39,805 INFO L231 Difference]: Finished difference. Result has 41 places, 38 transitions, 136 flow [2023-11-06 23:07:39,806 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=703, PETRI_DIFFERENCE_MINUEND_FLOW=116, PETRI_DIFFERENCE_MINUEND_PLACES=36, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=38, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=28, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=136, PETRI_PLACES=41, PETRI_TRANSITIONS=38} [2023-11-06 23:07:39,808 INFO L281 CegarLoopForPetriNet]: 41 programPoint places, 0 predicate places. [2023-11-06 23:07:39,808 INFO L495 AbstractCegarLoop]: Abstraction has has 41 places, 38 transitions, 136 flow [2023-11-06 23:07:39,810 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 289.875) internal successors, (2319), 8 states have internal predecessors, (2319), 0 states have call successors, (0), 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 23:07:39,810 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 23:07:39,811 INFO L208 CegarLoopForPetriNet]: trace histogram [4, 4, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 23:07:39,824 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6037aec0-5f2d-4615-9b4f-2feb3e5cb29f/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-11-06 23:07:40,017 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6037aec0-5f2d-4615-9b4f-2feb3e5cb29f/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2023-11-06 23:07:40,018 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 35 more)] === [2023-11-06 23:07:40,018 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 23:07:40,018 INFO L85 PathProgramCache]: Analyzing trace with hash -689278807, now seen corresponding path program 1 times [2023-11-06 23:07:40,018 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 23:07:40,019 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [63140779] [2023-11-06 23:07:40,019 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 23:07:40,019 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 23:07:40,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:07:40,242 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-11-06 23:07:40,243 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 23:07:40,245 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [63140779] [2023-11-06 23:07:40,246 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [63140779] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-06 23:07:40,246 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [360424266] [2023-11-06 23:07:40,246 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 23:07:40,246 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 23:07:40,247 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6037aec0-5f2d-4615-9b4f-2feb3e5cb29f/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 23:07:40,248 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6037aec0-5f2d-4615-9b4f-2feb3e5cb29f/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 23:07:40,274 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6037aec0-5f2d-4615-9b4f-2feb3e5cb29f/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-11-06 23:07:40,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:07:40,408 INFO L262 TraceCheckSpWp]: Trace formula consists of 226 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-06 23:07:40,411 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 23:07:40,559 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-11-06 23:07:40,559 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-06 23:07:40,672 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-11-06 23:07:40,672 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [360424266] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-06 23:07:40,673 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-06 23:07:40,673 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 16 [2023-11-06 23:07:40,673 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1897701859] [2023-11-06 23:07:40,673 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-06 23:07:40,674 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2023-11-06 23:07:40,674 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 23:07:40,675 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2023-11-06 23:07:40,676 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=106, Invalid=166, Unknown=0, NotChecked=0, Total=272 [2023-11-06 23:07:40,996 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 288 out of 703 [2023-11-06 23:07:41,004 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 41 places, 38 transitions, 136 flow. Second operand has 17 states, 17 states have (on average 289.4117647058824) internal successors, (4920), 17 states have internal predecessors, (4920), 0 states have call successors, (0), 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 23:07:41,004 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 23:07:41,005 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 288 of 703 [2023-11-06 23:07:41,005 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 23:07:41,331 INFO L124 PetriNetUnfolderBase]: 477/828 cut-off events. [2023-11-06 23:07:41,332 INFO L125 PetriNetUnfolderBase]: For 56/56 co-relation queries the response was YES. [2023-11-06 23:07:41,333 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1811 conditions, 828 events. 477/828 cut-off events. For 56/56 co-relation queries the response was YES. Maximal size of possible extension queue 100. Compared 3916 event pairs, 419 based on Foata normal form. 1/420 useless extension candidates. Maximal degree in co-relation 1760. Up to 819 conditions per place. [2023-11-06 23:07:41,339 INFO L140 encePairwiseOnDemand]: 698/703 looper letters, 28 selfloop transitions, 12 changer transitions 0/40 dead transitions. [2023-11-06 23:07:41,339 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 47 places, 40 transitions, 224 flow [2023-11-06 23:07:41,340 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-06 23:07:41,340 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-11-06 23:07:41,347 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 2057 transitions. [2023-11-06 23:07:41,349 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.41800447063604956 [2023-11-06 23:07:41,349 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 2057 transitions. [2023-11-06 23:07:41,350 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 2057 transitions. [2023-11-06 23:07:41,352 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 23:07:41,352 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 2057 transitions. [2023-11-06 23:07:41,359 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 293.85714285714283) internal successors, (2057), 7 states have internal predecessors, (2057), 0 states have call successors, (0), 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 23:07:41,371 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 703.0) internal successors, (5624), 8 states have internal predecessors, (5624), 0 states have call successors, (0), 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 23:07:41,374 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 703.0) internal successors, (5624), 8 states have internal predecessors, (5624), 0 states have call successors, (0), 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 23:07:41,375 INFO L175 Difference]: Start difference. First operand has 41 places, 38 transitions, 136 flow. Second operand 7 states and 2057 transitions. [2023-11-06 23:07:41,375 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 47 places, 40 transitions, 224 flow [2023-11-06 23:07:41,376 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 42 places, 40 transitions, 204 flow, removed 0 selfloop flow, removed 5 redundant places. [2023-11-06 23:07:41,377 INFO L231 Difference]: Finished difference. Result has 43 places, 40 transitions, 158 flow [2023-11-06 23:07:41,378 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=703, PETRI_DIFFERENCE_MINUEND_FLOW=116, PETRI_DIFFERENCE_MINUEND_PLACES=36, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=38, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=26, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=158, PETRI_PLACES=43, PETRI_TRANSITIONS=40} [2023-11-06 23:07:41,379 INFO L281 CegarLoopForPetriNet]: 41 programPoint places, 2 predicate places. [2023-11-06 23:07:41,379 INFO L495 AbstractCegarLoop]: Abstraction has has 43 places, 40 transitions, 158 flow [2023-11-06 23:07:41,383 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 289.4117647058824) internal successors, (4920), 17 states have internal predecessors, (4920), 0 states have call successors, (0), 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 23:07:41,387 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 23:07:41,387 INFO L208 CegarLoopForPetriNet]: trace histogram [5, 5, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 23:07:41,402 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6037aec0-5f2d-4615-9b4f-2feb3e5cb29f/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-11-06 23:07:41,594 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6037aec0-5f2d-4615-9b4f-2feb3e5cb29f/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 23:07:41,595 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 35 more)] === [2023-11-06 23:07:41,595 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 23:07:41,595 INFO L85 PathProgramCache]: Analyzing trace with hash -2061122918, now seen corresponding path program 2 times [2023-11-06 23:07:41,595 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 23:07:41,596 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [425909458] [2023-11-06 23:07:41,596 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 23:07:41,596 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 23:07:41,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:07:42,878 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 3 proven. 12 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2023-11-06 23:07:42,878 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 23:07:42,878 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [425909458] [2023-11-06 23:07:42,879 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [425909458] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-06 23:07:42,879 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1960775382] [2023-11-06 23:07:42,879 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-06 23:07:42,879 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 23:07:42,880 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6037aec0-5f2d-4615-9b4f-2feb3e5cb29f/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 23:07:42,881 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6037aec0-5f2d-4615-9b4f-2feb3e5cb29f/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 23:07:42,885 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6037aec0-5f2d-4615-9b4f-2feb3e5cb29f/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-11-06 23:07:43,054 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-06 23:07:43,054 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-06 23:07:43,057 INFO L262 TraceCheckSpWp]: Trace formula consists of 248 conjuncts, 36 conjunts are in the unsatisfiable core [2023-11-06 23:07:43,061 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 23:07:43,145 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2023-11-06 23:07:43,197 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-06 23:07:43,199 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 13 [2023-11-06 23:07:43,249 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-06 23:07:43,250 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 13 [2023-11-06 23:07:43,312 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-06 23:07:43,314 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 13 [2023-11-06 23:07:43,378 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-06 23:07:43,379 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 13 [2023-11-06 23:07:43,435 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-06 23:07:43,437 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 13 [2023-11-06 23:07:43,463 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 6 proven. 9 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2023-11-06 23:07:43,463 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-06 23:07:59,715 INFO L322 Elim1Store]: treesize reduction 244, result has 20.0 percent of original size [2023-11-06 23:07:59,715 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 5 case distinctions, treesize of input 52 treesize of output 73 [2023-11-06 23:07:59,740 INFO L322 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-06 23:07:59,741 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 39 treesize of output 35 [2023-11-06 23:07:59,748 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 5 [2023-11-06 23:07:59,845 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 3 proven. 12 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2023-11-06 23:07:59,846 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1960775382] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-06 23:07:59,846 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-06 23:07:59,846 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 24 [2023-11-06 23:07:59,847 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [278959467] [2023-11-06 23:07:59,847 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-06 23:07:59,847 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2023-11-06 23:07:59,848 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 23:07:59,849 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2023-11-06 23:07:59,849 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=138, Invalid=499, Unknown=13, NotChecked=0, Total=650 [2023-11-06 23:08:01,864 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-11-06 23:08:03,177 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.29s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-11-06 23:08:05,184 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-11-06 23:08:07,213 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-11-06 23:08:09,246 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-11-06 23:08:11,272 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-11-06 23:08:13,289 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-11-06 23:08:15,316 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-11-06 23:08:16,436 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-11-06 23:08:18,478 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-11-06 23:08:20,503 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-11-06 23:08:22,513 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-11-06 23:08:24,541 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-11-06 23:08:26,618 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-11-06 23:08:27,879 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.22s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-11-06 23:08:29,906 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-11-06 23:08:31,927 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-11-06 23:08:33,956 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-11-06 23:08:35,972 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-11-06 23:08:38,050 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-11-06 23:08:40,073 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-11-06 23:08:42,086 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-11-06 23:08:44,094 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-11-06 23:08:46,136 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-11-06 23:08:48,167 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-11-06 23:08:50,177 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-11-06 23:08:52,227 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-11-06 23:08:54,255 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-11-06 23:08:54,257 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 256 out of 703 [2023-11-06 23:08:54,279 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 43 places, 40 transitions, 158 flow. Second operand has 26 states, 26 states have (on average 257.2692307692308) internal successors, (6689), 26 states have internal predecessors, (6689), 0 states have call successors, (0), 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 23:08:54,279 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 23:08:54,279 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 256 of 703 [2023-11-06 23:08:54,279 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 23:08:55,431 INFO L124 PetriNetUnfolderBase]: 540/1026 cut-off events. [2023-11-06 23:08:55,431 INFO L125 PetriNetUnfolderBase]: For 59/59 co-relation queries the response was YES. [2023-11-06 23:08:55,433 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2231 conditions, 1026 events. 540/1026 cut-off events. For 59/59 co-relation queries the response was YES. Maximal size of possible extension queue 129. Compared 5926 event pairs, 259 based on Foata normal form. 0/522 useless extension candidates. Maximal degree in co-relation 2171. Up to 658 conditions per place. [2023-11-06 23:08:55,440 INFO L140 encePairwiseOnDemand]: 689/703 looper letters, 42 selfloop transitions, 26 changer transitions 0/68 dead transitions. [2023-11-06 23:08:55,440 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 54 places, 68 transitions, 362 flow [2023-11-06 23:08:55,441 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-06 23:08:55,441 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2023-11-06 23:08:55,453 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 3138 transitions. [2023-11-06 23:08:55,455 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.37197724039829305 [2023-11-06 23:08:55,456 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 3138 transitions. [2023-11-06 23:08:55,456 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 3138 transitions. [2023-11-06 23:08:55,459 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 23:08:55,459 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 3138 transitions. [2023-11-06 23:08:55,469 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 261.5) internal successors, (3138), 12 states have internal predecessors, (3138), 0 states have call successors, (0), 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 23:08:55,488 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 703.0) internal successors, (9139), 13 states have internal predecessors, (9139), 0 states have call successors, (0), 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 23:08:55,492 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 703.0) internal successors, (9139), 13 states have internal predecessors, (9139), 0 states have call successors, (0), 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 23:08:55,492 INFO L175 Difference]: Start difference. First operand has 43 places, 40 transitions, 158 flow. Second operand 12 states and 3138 transitions. [2023-11-06 23:08:55,492 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 54 places, 68 transitions, 362 flow [2023-11-06 23:08:55,494 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 50 places, 68 transitions, 342 flow, removed 2 selfloop flow, removed 4 redundant places. [2023-11-06 23:08:55,496 INFO L231 Difference]: Finished difference. Result has 52 places, 52 transitions, 246 flow [2023-11-06 23:08:55,497 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=703, PETRI_DIFFERENCE_MINUEND_FLOW=138, PETRI_DIFFERENCE_MINUEND_PLACES=39, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=40, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=17, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=21, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=246, PETRI_PLACES=52, PETRI_TRANSITIONS=52} [2023-11-06 23:08:55,499 INFO L281 CegarLoopForPetriNet]: 41 programPoint places, 11 predicate places. [2023-11-06 23:08:55,499 INFO L495 AbstractCegarLoop]: Abstraction has has 52 places, 52 transitions, 246 flow [2023-11-06 23:08:55,501 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 257.2692307692308) internal successors, (6689), 26 states have internal predecessors, (6689), 0 states have call successors, (0), 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 23:08:55,502 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 23:08:55,502 INFO L208 CegarLoopForPetriNet]: trace histogram [5, 5, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 23:08:55,518 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6037aec0-5f2d-4615-9b4f-2feb3e5cb29f/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-11-06 23:08:55,709 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6037aec0-5f2d-4615-9b4f-2feb3e5cb29f/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 23:08:55,709 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 35 more)] === [2023-11-06 23:08:55,710 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 23:08:55,710 INFO L85 PathProgramCache]: Analyzing trace with hash -2061122985, now seen corresponding path program 2 times [2023-11-06 23:08:55,710 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 23:08:55,710 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1958961086] [2023-11-06 23:08:55,710 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 23:08:55,711 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 23:08:55,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:08:56,795 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 3 proven. 12 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2023-11-06 23:08:56,795 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 23:08:56,795 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1958961086] [2023-11-06 23:08:56,795 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1958961086] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-06 23:08:56,796 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [278969602] [2023-11-06 23:08:56,796 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-06 23:08:56,796 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 23:08:56,796 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6037aec0-5f2d-4615-9b4f-2feb3e5cb29f/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 23:08:56,797 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6037aec0-5f2d-4615-9b4f-2feb3e5cb29f/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 23:08:56,808 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6037aec0-5f2d-4615-9b4f-2feb3e5cb29f/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-11-06 23:08:56,972 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-06 23:08:56,972 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-06 23:08:56,974 INFO L262 TraceCheckSpWp]: Trace formula consists of 247 conjuncts, 36 conjunts are in the unsatisfiable core [2023-11-06 23:08:56,981 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 23:08:57,057 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2023-11-06 23:08:57,138 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-06 23:08:57,139 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2023-11-06 23:08:57,192 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-06 23:08:57,193 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2023-11-06 23:08:57,249 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-06 23:08:57,250 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2023-11-06 23:08:57,305 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-06 23:08:57,306 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2023-11-06 23:08:57,357 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-06 23:08:57,358 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2023-11-06 23:08:57,385 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 6 proven. 9 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2023-11-06 23:08:57,385 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-06 23:08:57,457 WARN L839 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_307 (Array Int Int))) (< (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#t1~0#1.base| v_ArrVal_307) |c_ULTIMATE.start_create_fresh_int_array_~arr~0#1.base|) |c_ULTIMATE.start_create_fresh_int_array_~arr~0#1.offset|) 9223372039002259456)) is different from false [2023-11-06 23:09:08,958 INFO L322 Elim1Store]: treesize reduction 244, result has 20.0 percent of original size [2023-11-06 23:09:08,958 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 5 case distinctions, treesize of input 50 treesize of output 71 [2023-11-06 23:09:08,979 INFO L322 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-06 23:09:08,980 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 33 treesize of output 29 [2023-11-06 23:09:08,998 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2023-11-06 23:09:09,063 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 3 proven. 7 refuted. 0 times theorem prover too weak. 15 trivial. 5 not checked. [2023-11-06 23:09:09,063 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [278969602] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-06 23:09:09,063 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-06 23:09:09,063 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 24 [2023-11-06 23:09:09,064 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [951019111] [2023-11-06 23:09:09,064 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-06 23:09:09,064 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2023-11-06 23:09:09,065 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 23:09:09,065 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2023-11-06 23:09:09,065 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=127, Invalid=465, Unknown=12, NotChecked=46, Total=650 [2023-11-06 23:09:09,224 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 256 out of 703 [2023-11-06 23:09:09,229 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 52 places, 52 transitions, 246 flow. Second operand has 26 states, 26 states have (on average 257.2692307692308) internal successors, (6689), 26 states have internal predecessors, (6689), 0 states have call successors, (0), 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 23:09:09,229 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 23:09:09,229 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 256 of 703 [2023-11-06 23:09:09,229 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 23:09:10,312 INFO L124 PetriNetUnfolderBase]: 539/1024 cut-off events. [2023-11-06 23:09:10,312 INFO L125 PetriNetUnfolderBase]: For 246/246 co-relation queries the response was YES. [2023-11-06 23:09:10,314 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2477 conditions, 1024 events. 539/1024 cut-off events. For 246/246 co-relation queries the response was YES. Maximal size of possible extension queue 129. Compared 5915 event pairs, 259 based on Foata normal form. 0/575 useless extension candidates. Maximal degree in co-relation 2414. Up to 657 conditions per place. [2023-11-06 23:09:10,322 INFO L140 encePairwiseOnDemand]: 689/703 looper letters, 41 selfloop transitions, 28 changer transitions 0/69 dead transitions. [2023-11-06 23:09:10,323 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 63 places, 69 transitions, 427 flow [2023-11-06 23:09:10,323 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-06 23:09:10,323 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2023-11-06 23:09:10,335 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 3137 transitions. [2023-11-06 23:09:10,338 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.37185870080606925 [2023-11-06 23:09:10,338 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 3137 transitions. [2023-11-06 23:09:10,338 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 3137 transitions. [2023-11-06 23:09:10,342 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 23:09:10,342 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 3137 transitions. [2023-11-06 23:09:10,352 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 261.4166666666667) internal successors, (3137), 12 states have internal predecessors, (3137), 0 states have call successors, (0), 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 23:09:10,369 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 703.0) internal successors, (9139), 13 states have internal predecessors, (9139), 0 states have call successors, (0), 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 23:09:10,373 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 703.0) internal successors, (9139), 13 states have internal predecessors, (9139), 0 states have call successors, (0), 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 23:09:10,373 INFO L175 Difference]: Start difference. First operand has 52 places, 52 transitions, 246 flow. Second operand 12 states and 3137 transitions. [2023-11-06 23:09:10,373 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 63 places, 69 transitions, 427 flow [2023-11-06 23:09:10,377 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 58 places, 69 transitions, 410 flow, removed 0 selfloop flow, removed 5 redundant places. [2023-11-06 23:09:10,379 INFO L231 Difference]: Finished difference. Result has 58 places, 54 transitions, 294 flow [2023-11-06 23:09:10,380 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=703, PETRI_DIFFERENCE_MINUEND_FLOW=225, PETRI_DIFFERENCE_MINUEND_PLACES=47, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=51, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=25, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=26, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=294, PETRI_PLACES=58, PETRI_TRANSITIONS=54} [2023-11-06 23:09:10,382 INFO L281 CegarLoopForPetriNet]: 41 programPoint places, 17 predicate places. [2023-11-06 23:09:10,383 INFO L495 AbstractCegarLoop]: Abstraction has has 58 places, 54 transitions, 294 flow [2023-11-06 23:09:10,385 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 257.2692307692308) internal successors, (6689), 26 states have internal predecessors, (6689), 0 states have call successors, (0), 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 23:09:10,385 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 23:09:10,386 INFO L208 CegarLoopForPetriNet]: trace histogram [5, 5, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 23:09:10,400 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6037aec0-5f2d-4615-9b4f-2feb3e5cb29f/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2023-11-06 23:09:10,593 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6037aec0-5f2d-4615-9b4f-2feb3e5cb29f/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 23:09:10,593 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 35 more)] === [2023-11-06 23:09:10,594 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 23:09:10,594 INFO L85 PathProgramCache]: Analyzing trace with hash -2061122911, now seen corresponding path program 1 times [2023-11-06 23:09:10,594 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 23:09:10,595 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1318620691] [2023-11-06 23:09:10,595 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 23:09:10,595 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 23:09:10,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:09:12,044 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-11-06 23:09:12,044 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 23:09:12,044 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1318620691] [2023-11-06 23:09:12,044 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1318620691] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-06 23:09:12,044 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1024856506] [2023-11-06 23:09:12,045 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 23:09:12,045 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 23:09:12,045 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6037aec0-5f2d-4615-9b4f-2feb3e5cb29f/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 23:09:12,046 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6037aec0-5f2d-4615-9b4f-2feb3e5cb29f/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 23:09:12,056 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6037aec0-5f2d-4615-9b4f-2feb3e5cb29f/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-11-06 23:09:12,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:09:12,218 INFO L262 TraceCheckSpWp]: Trace formula consists of 249 conjuncts, 63 conjunts are in the unsatisfiable core [2023-11-06 23:09:12,223 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 23:09:12,237 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-06 23:09:12,238 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 5 [2023-11-06 23:09:12,248 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-06 23:09:12,255 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-06 23:09:12,255 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 1 [2023-11-06 23:09:12,262 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-06 23:09:12,266 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-06 23:09:12,267 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 1 [2023-11-06 23:09:12,323 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2023-11-06 23:09:12,386 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2023-11-06 23:09:12,446 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2023-11-06 23:09:12,519 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2023-11-06 23:09:12,577 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2023-11-06 23:09:12,656 INFO L322 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2023-11-06 23:09:12,656 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2023-11-06 23:09:12,723 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 13 [2023-11-06 23:09:12,778 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 13 [2023-11-06 23:09:12,847 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 13 [2023-11-06 23:09:12,931 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 13 [2023-11-06 23:09:12,998 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 13 [2023-11-06 23:09:13,064 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-06 23:09:13,067 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 13 [2023-11-06 23:09:13,091 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 9 [2023-11-06 23:09:13,121 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 23:09:13,121 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-06 23:09:13,271 WARN L839 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_382 (Array Int Int)) (v_ArrVal_381 (Array Int Int))) (< 0 (+ 2147483649 (select (select (store (store |c_#memory_int| |c_ULTIMATE.start_create_fresh_int_array_~arr~0#1.base| v_ArrVal_381) |c_ULTIMATE.start_main_~#t1~0#1.base| v_ArrVal_382) c_~o_0~0.base) c_~o_0~0.offset)))) is different from false [2023-11-06 23:09:13,904 INFO L322 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-06 23:09:13,905 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 5 case distinctions, treesize of input 59 treesize of output 80 [2023-11-06 23:09:13,921 INFO L322 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-06 23:09:13,922 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 143 treesize of output 135 [2023-11-06 23:09:13,935 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 25 [2023-11-06 23:09:13,944 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 24 [2023-11-06 23:09:14,074 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 10 trivial. 5 not checked. [2023-11-06 23:09:14,074 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1024856506] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-06 23:09:14,074 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-06 23:09:14,074 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 15, 11] total 34 [2023-11-06 23:09:14,075 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [267004988] [2023-11-06 23:09:14,075 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-06 23:09:14,075 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 36 states [2023-11-06 23:09:14,076 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 23:09:14,076 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2023-11-06 23:09:14,077 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=181, Invalid=1008, Unknown=5, NotChecked=66, Total=1260 [2023-11-06 23:09:14,268 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 245 out of 703 [2023-11-06 23:09:14,278 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 58 places, 54 transitions, 294 flow. Second operand has 36 states, 36 states have (on average 246.16666666666666) internal successors, (8862), 36 states have internal predecessors, (8862), 0 states have call successors, (0), 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 23:09:14,278 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 23:09:14,278 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 245 of 703 [2023-11-06 23:09:14,278 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 23:09:16,259 INFO L124 PetriNetUnfolderBase]: 634/1173 cut-off events. [2023-11-06 23:09:16,259 INFO L125 PetriNetUnfolderBase]: For 652/652 co-relation queries the response was YES. [2023-11-06 23:09:16,261 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3073 conditions, 1173 events. 634/1173 cut-off events. For 652/652 co-relation queries the response was YES. Maximal size of possible extension queue 137. Compared 6665 event pairs, 434 based on Foata normal form. 0/724 useless extension candidates. Maximal degree in co-relation 2976. Up to 848 conditions per place. [2023-11-06 23:09:16,270 INFO L140 encePairwiseOnDemand]: 692/703 looper letters, 59 selfloop transitions, 33 changer transitions 0/92 dead transitions. [2023-11-06 23:09:16,270 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 80 places, 92 transitions, 621 flow [2023-11-06 23:09:16,271 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2023-11-06 23:09:16,271 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2023-11-06 23:09:16,289 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 5724 transitions. [2023-11-06 23:09:16,294 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3540107613334158 [2023-11-06 23:09:16,294 INFO L72 ComplementDD]: Start complementDD. Operand 23 states and 5724 transitions. [2023-11-06 23:09:16,294 INFO L73 IsDeterministic]: Start isDeterministic. Operand 23 states and 5724 transitions. [2023-11-06 23:09:16,299 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 23:09:16,300 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 23 states and 5724 transitions. [2023-11-06 23:09:16,314 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 24 states, 23 states have (on average 248.8695652173913) internal successors, (5724), 23 states have internal predecessors, (5724), 0 states have call successors, (0), 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 23:09:16,340 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 24 states, 24 states have (on average 703.0) internal successors, (16872), 24 states have internal predecessors, (16872), 0 states have call successors, (0), 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 23:09:16,344 INFO L81 ComplementDD]: Finished complementDD. Result has 24 states, 24 states have (on average 703.0) internal successors, (16872), 24 states have internal predecessors, (16872), 0 states have call successors, (0), 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 23:09:16,344 INFO L175 Difference]: Start difference. First operand has 58 places, 54 transitions, 294 flow. Second operand 23 states and 5724 transitions. [2023-11-06 23:09:16,344 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 80 places, 92 transitions, 621 flow [2023-11-06 23:09:16,346 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 73 places, 92 transitions, 586 flow, removed 1 selfloop flow, removed 7 redundant places. [2023-11-06 23:09:16,349 INFO L231 Difference]: Finished difference. Result has 76 places, 66 transitions, 427 flow [2023-11-06 23:09:16,350 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=703, PETRI_DIFFERENCE_MINUEND_FLOW=264, PETRI_DIFFERENCE_MINUEND_PLACES=51, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=53, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=21, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=29, PETRI_DIFFERENCE_SUBTRAHEND_STATES=23, PETRI_FLOW=427, PETRI_PLACES=76, PETRI_TRANSITIONS=66} [2023-11-06 23:09:16,350 INFO L281 CegarLoopForPetriNet]: 41 programPoint places, 35 predicate places. [2023-11-06 23:09:16,351 INFO L495 AbstractCegarLoop]: Abstraction has has 76 places, 66 transitions, 427 flow [2023-11-06 23:09:16,352 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 36 states, 36 states have (on average 246.16666666666666) internal successors, (8862), 36 states have internal predecessors, (8862), 0 states have call successors, (0), 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 23:09:16,353 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 23:09:16,353 INFO L208 CegarLoopForPetriNet]: trace histogram [5, 5, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 23:09:16,359 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6037aec0-5f2d-4615-9b4f-2feb3e5cb29f/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2023-11-06 23:09:16,558 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6037aec0-5f2d-4615-9b4f-2feb3e5cb29f/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2023-11-06 23:09:16,559 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 35 more)] === [2023-11-06 23:09:16,559 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 23:09:16,559 INFO L85 PathProgramCache]: Analyzing trace with hash -2061122913, now seen corresponding path program 1 times [2023-11-06 23:09:16,559 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 23:09:16,559 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1310860542] [2023-11-06 23:09:16,560 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 23:09:16,560 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 23:09:16,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:09:17,591 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 3 proven. 17 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-11-06 23:09:17,591 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 23:09:17,592 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1310860542] [2023-11-06 23:09:17,592 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1310860542] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-06 23:09:17,592 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2103744146] [2023-11-06 23:09:17,592 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 23:09:17,592 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 23:09:17,592 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6037aec0-5f2d-4615-9b4f-2feb3e5cb29f/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 23:09:17,594 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6037aec0-5f2d-4615-9b4f-2feb3e5cb29f/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 23:09:17,599 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6037aec0-5f2d-4615-9b4f-2feb3e5cb29f/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2023-11-06 23:09:17,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:09:17,768 INFO L262 TraceCheckSpWp]: Trace formula consists of 239 conjuncts, 67 conjunts are in the unsatisfiable core [2023-11-06 23:09:17,773 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 23:09:17,788 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-06 23:09:17,789 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 5 [2023-11-06 23:09:17,796 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-06 23:09:17,800 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-06 23:09:17,801 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 1 [2023-11-06 23:09:17,808 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-06 23:09:17,811 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-06 23:09:17,812 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 1 [2023-11-06 23:09:17,854 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2023-11-06 23:09:17,914 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 11 [2023-11-06 23:09:17,968 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 11 [2023-11-06 23:09:18,032 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 11 [2023-11-06 23:09:18,097 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 11 [2023-11-06 23:09:18,171 INFO L322 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2023-11-06 23:09:18,172 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2023-11-06 23:09:18,231 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2023-11-06 23:09:18,299 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2023-11-06 23:09:18,364 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2023-11-06 23:09:18,436 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2023-11-06 23:09:18,497 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2023-11-06 23:09:18,557 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-06 23:09:18,558 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2023-11-06 23:09:18,715 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 23:09:18,715 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-06 23:09:19,154 WARN L839 $PredicateComparison]: unable to prove that (and (forall ((v_ArrVal_458 (Array Int Int))) (let ((.cse0 (store |c_#memory_int| |c_ULTIMATE.start_main_~#t1~0#1.base| v_ArrVal_458))) (or (< (select (select .cse0 c_~o_0~0.base) c_~o_0~0.offset) 2147483648) (forall ((~o_2~0.base Int)) (not (= (select (select .cse0 ~o_2~0.base) |c_ULTIMATE.start_create_fresh_int_array_~arr~0#1.offset|) 0)))))) (forall ((v_ArrVal_458 (Array Int Int)) (~o_2~0.base Int)) (let ((.cse2 (store |c_#memory_int| |c_ULTIMATE.start_main_~#t1~0#1.base| v_ArrVal_458))) (let ((.cse1 (select (select .cse2 ~o_2~0.base) |c_ULTIMATE.start_create_fresh_int_array_~arr~0#1.offset|))) (or (< .cse1 0) (< (select (select .cse2 c_~o_0~0.base) c_~o_0~0.offset) (+ .cse1 2147483648)) (< 9223372039002259455 .cse1)))))) is different from false [2023-11-06 23:09:19,200 WARN L839 $PredicateComparison]: unable to prove that (and (forall ((v_ArrVal_458 (Array Int Int)) (v_ArrVal_457 (Array Int Int))) (let ((.cse0 (store (store |c_#memory_int| |c_ULTIMATE.start_create_fresh_int_array_~arr~0#1.base| v_ArrVal_457) |c_ULTIMATE.start_main_~#t1~0#1.base| v_ArrVal_458))) (or (forall ((~o_2~0.base Int)) (not (= (select (select .cse0 ~o_2~0.base) |c_ULTIMATE.start_create_fresh_int_array_~arr~0#1.offset|) 0))) (< (select (select .cse0 c_~o_0~0.base) c_~o_0~0.offset) 2147483648)))) (forall ((v_ArrVal_458 (Array Int Int)) (v_ArrVal_457 (Array Int Int)) (~o_2~0.base Int)) (let ((.cse2 (store (store |c_#memory_int| |c_ULTIMATE.start_create_fresh_int_array_~arr~0#1.base| v_ArrVal_457) |c_ULTIMATE.start_main_~#t1~0#1.base| v_ArrVal_458))) (let ((.cse1 (select (select .cse2 ~o_2~0.base) |c_ULTIMATE.start_create_fresh_int_array_~arr~0#1.offset|))) (or (< .cse1 0) (< (select (select .cse2 c_~o_0~0.base) c_~o_0~0.offset) (+ .cse1 2147483648)) (< 9223372039002259455 .cse1)))))) is different from false [2023-11-06 23:09:31,137 INFO L322 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-06 23:09:31,138 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 10 case distinctions, treesize of input 357 treesize of output 231 [2023-11-06 23:09:31,272 INFO L322 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-06 23:09:31,273 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 614 treesize of output 630 [2023-11-06 23:09:31,392 INFO L322 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-06 23:09:31,393 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 559 treesize of output 528 [2023-11-06 23:09:31,447 INFO L322 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-06 23:09:31,448 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 519 treesize of output 508 [2023-11-06 23:09:31,500 INFO L322 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-06 23:09:31,500 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 499 treesize of output 502 [2023-11-06 23:09:31,568 INFO L322 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-06 23:09:31,569 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 493 treesize of output 490 [2023-11-06 23:09:31,641 INFO L322 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-06 23:09:31,641 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 543 treesize of output 547